6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
61 #include "alert_box.h"
62 #include "simple_dialog.h"
63 #include "progress_dlg.h"
65 #include <epan/prefs.h>
66 #include <epan/dfilter/dfilter.h>
67 #include <epan/epan_dissect.h>
69 #include <epan/dissectors/packet-data.h>
70 #include <epan/dissectors/packet-ber.h>
71 #include <epan/timestamp.h>
72 #include <epan/dfilter/dfilter-macro.h>
73 #include <wsutil/file_util.h>
74 #include <epan/strutil.h>
77 gboolean auto_scroll_live;
80 static guint32 cum_bytes;
81 static nstime_t first_ts;
82 static nstime_t prev_dis_ts;
83 static nstime_t prev_cap_ts;
85 static gulong computed_elapsed;
87 static void cf_reset_state(capture_file *cf);
89 static int read_packet(capture_file *cf, dfilter_t *dfcode,
90 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
92 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
93 gboolean refilter, gboolean redissect);
95 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
97 static void match_subtree_text(proto_node *node, gpointer data);
98 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
100 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
102 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
104 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
106 static gboolean match_binary(capture_file *cf, frame_data *fdata,
108 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
110 static gboolean find_packet(capture_file *cf,
111 gboolean (*match_function)(capture_file *, frame_data *, void *),
114 static void cf_open_failure_alert_box(const char *filename, int err,
115 gchar *err_info, gboolean for_writing,
117 static const char *file_rename_error_message(int err);
118 static void cf_write_failure_alert_box(const char *filename, int err);
119 static void cf_close_failure_alert_box(const char *filename, int err);
120 #ifdef NEW_PACKET_LIST
121 static void ref_time_packets(capture_file *cf);
123 /* Update the progress bar this many times when reading a file. */
124 #define N_PROGBAR_UPDATES 100
125 /* We read around 200k/100ms domt update the progress bar more often than that */
126 #define MIN_QUANTUM 200000
127 #define MIN_NUMBER_OF_PACKET 1500
129 /* Number of "frame_data" structures per memory chunk.
130 XXX - is this the right number? */
131 #define FRAME_DATA_CHUNK_SIZE 1024
134 /* this callback mechanism should possibly be replaced by the g_signal_...() stuff (if I only would know how :-) */
136 cf_callback_t cb_fct;
138 } cf_callback_data_t;
140 static GList *cf_callbacks = NULL;
143 cf_callback_invoke(int event, gpointer data)
145 cf_callback_data_t *cb;
146 GList *cb_item = cf_callbacks;
148 /* there should be at least one interested */
149 g_assert(cb_item != NULL);
151 while(cb_item != NULL) {
153 cb->cb_fct(event, data, cb->user_data);
154 cb_item = g_list_next(cb_item);
160 cf_callback_add(cf_callback_t func, gpointer user_data)
162 cf_callback_data_t *cb;
164 cb = g_malloc(sizeof(cf_callback_data_t));
166 cb->user_data = user_data;
168 cf_callbacks = g_list_append(cf_callbacks, cb);
172 cf_callback_remove(cf_callback_t func)
174 cf_callback_data_t *cb;
175 GList *cb_item = cf_callbacks;
177 while(cb_item != NULL) {
179 if(cb->cb_fct == func) {
180 cf_callbacks = g_list_remove(cf_callbacks, cb);
184 cb_item = g_list_next(cb_item);
187 g_assert_not_reached();
191 cf_timestamp_auto_precision(capture_file *cf)
193 #ifdef NEW_PACKET_LIST
196 int prec = timestamp_get_precision();
199 /* don't try to get the file's precision if none is opened */
200 if(cf->state == FILE_CLOSED) {
204 /* if we are in auto mode, set precision of current file */
205 if(prec == TS_PREC_AUTO ||
206 prec == TS_PREC_AUTO_SEC ||
207 prec == TS_PREC_AUTO_DSEC ||
208 prec == TS_PREC_AUTO_CSEC ||
209 prec == TS_PREC_AUTO_MSEC ||
210 prec == TS_PREC_AUTO_USEC ||
211 prec == TS_PREC_AUTO_NSEC)
213 switch(wtap_file_tsprecision(cf->wth)) {
214 case(WTAP_FILE_TSPREC_SEC):
215 timestamp_set_precision(TS_PREC_AUTO_SEC);
217 case(WTAP_FILE_TSPREC_DSEC):
218 timestamp_set_precision(TS_PREC_AUTO_DSEC);
220 case(WTAP_FILE_TSPREC_CSEC):
221 timestamp_set_precision(TS_PREC_AUTO_CSEC);
223 case(WTAP_FILE_TSPREC_MSEC):
224 timestamp_set_precision(TS_PREC_AUTO_MSEC);
226 case(WTAP_FILE_TSPREC_USEC):
227 timestamp_set_precision(TS_PREC_AUTO_USEC);
229 case(WTAP_FILE_TSPREC_NSEC):
230 timestamp_set_precision(TS_PREC_AUTO_NSEC);
233 g_assert_not_reached();
236 #ifdef NEW_PACKET_LIST
237 /* Set the column widths of those columns that show the time in
238 "command-line-specified" format. */
239 for (i = 0; i < cf->cinfo.num_cols; i++) {
240 if (col_has_time_fmt(&cf->cinfo, i)) {
241 new_packet_list_resize_column(i);
248 cf_get_computed_elapsed(void)
250 return computed_elapsed;
253 static void reset_elapsed(void)
255 computed_elapsed = 0;
258 static void compute_elapsed(GTimeVal *start_time)
263 g_get_current_time(&time_now);
265 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
266 time_now.tv_usec - start_time->tv_usec;
268 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
272 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
277 wth = wtap_open_offline(fname, err, &err_info, TRUE);
281 /* The open succeeded. Close whatever capture file we had open,
282 and fill in the information for this file. */
285 /* Cleanup all data structures used for dissection. */
286 cleanup_dissection();
287 /* Initialize all data structures used for dissection. */
290 /* We're about to start reading the file. */
291 cf->state = FILE_READ_IN_PROGRESS;
296 /* Set the file name because we need it to set the follow stream filter.
297 XXX - is that still true? We need it for other reasons, though,
299 cf->filename = g_strdup(fname);
301 /* Indicate whether it's a permanent or temporary file. */
302 cf->is_tempfile = is_tempfile;
304 /* If it's a temporary capture buffer file, mark it as not saved. */
305 cf->user_saved = !is_tempfile;
309 cf->cd_t = wtap_file_type(cf->wth);
311 cf->displayed_count = 0;
312 cf->marked_count = 0;
313 cf->drops_known = FALSE;
315 cf->snap = wtap_snapshot_length(cf->wth);
317 /* Snapshot length not known. */
318 cf->has_snap = FALSE;
319 cf->snap = WTAP_MAX_PACKET_SIZE;
323 nstime_set_zero(&cf->elapsed_time);
324 nstime_set_unset(&first_ts);
325 nstime_set_unset(&prev_dis_ts);
326 nstime_set_unset(&prev_cap_ts);
329 #if GLIB_CHECK_VERSION(2,10,0)
331 /* memory chunks have been deprecated in favor of the slice allocator,
332 * which has been added in 2.10
334 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
336 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
338 g_assert(cf->plist_chunk);
341 #ifdef NEW_PACKET_LIST
342 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
343 cf_timestamp_auto_precision(cf);
345 new_packet_list_queue_draw();
347 /* change the time formats now, as we might have a new precision */
348 cf_change_time_formats(cf);
350 fileset_file_opened(fname);
352 if(cf->cd_t == WTAP_FILE_BER) {
353 /* tell the BER dissector the file name */
354 ber_set_filename(cf->filename);
360 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
366 * Reset the state for the currently closed file, but don't do the
367 * UI callbacks; this is for use in "cf_open()", where we don't
368 * want the UI to go from "file open" to "file closed" back to
369 * "file open", we want it to go from "old file open" to "new file
370 * open and being read".
373 cf_reset_state(capture_file *cf)
375 /* Die if we're in the middle of reading a file. */
376 g_assert(cf->state != FILE_READ_IN_PROGRESS);
382 /* We have no file open... */
383 if (cf->filename != NULL) {
384 /* If it's a temporary file, remove it. */
386 ws_unlink(cf->filename);
387 g_free(cf->filename);
390 /* ...which means we have nothing to save. */
391 cf->user_saved = FALSE;
393 #if GLIB_CHECK_VERSION(2,10,0)
394 if (cf->plist_start != NULL)
395 g_slice_free_chain(frame_data, cf->plist_start, next);
397 /* memory chunks have been deprecated in favor of the slice allocator,
398 * which has been added in 2.10
400 if (cf->plist_chunk != NULL) {
401 g_mem_chunk_destroy(cf->plist_chunk);
402 cf->plist_chunk = NULL;
405 dfilter_free(cf->rfcode);
407 cf->plist_start = NULL;
408 cf->plist_end = NULL;
409 cf_unselect_packet(cf); /* nothing to select */
410 cf->first_displayed = NULL;
411 cf->last_displayed = NULL;
413 /* No frame selected, no field in that frame selected. */
414 cf->current_frame = NULL;
416 cf->finfo_selected = NULL;
418 /* Clear the packet list. */
419 #ifdef NEW_PACKET_LIST
420 new_packet_list_freeze();
421 new_packet_list_clear();
422 new_packet_list_thaw();
424 packet_list_freeze();
431 nstime_set_zero(&cf->elapsed_time);
433 reset_tap_listeners();
435 /* We have no file open. */
436 cf->state = FILE_CLOSED;
438 fileset_file_closed();
441 /* Reset everything to a pristine state */
443 cf_close(capture_file *cf)
445 /* do GUI things even if file is already closed,
446 * e.g. to cleanup things if a capture couldn't be started */
447 cf_callback_invoke(cf_cb_file_closing, cf);
449 /* close things, if not already closed before */
450 if(cf->state != FILE_CLOSED) {
451 color_filters_cleanup();
453 cleanup_dissection();
456 cf_callback_invoke(cf_cb_file_closed, cf);
459 /* an out of memory exception occured, wait for a user button press to exit */
460 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
465 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
469 progbar_val = (gfloat) file_pos / (gfloat) size;
470 if (progbar_val > 1.0) {
471 /* The file probably grew while we were reading it.
472 Update file size, and try again. */
473 size = wtap_file_size(cf->wth, NULL);
475 progbar_val = (gfloat) file_pos / (gfloat) size;
476 /* If it's still > 1, either "wtap_file_size()" failed (in which
477 case there's not much we can do about it), or the file
478 *shrank* (in which case there's not much we can do about
479 it); just clip the progress value at 1.0. */
480 if (progbar_val > 1.0f)
487 cf_read(capture_file *cf)
491 const gchar *name_ptr;
493 char errmsg_errno[1024+1];
495 progdlg_t *volatile progbar = NULL;
497 volatile gint64 size;
498 volatile float progbar_val;
500 gchar status_str[100];
501 volatile gint64 progbar_nextstep;
502 volatile gint64 progbar_quantum;
504 gboolean filtering_tap_listeners;
506 volatile int count = 0;
508 volatile int displayed_once = 0;
512 /* Compile the current display filter.
513 * We assume this will not fail since cf->dfilter is only set in
514 * cf_filter IFF the filter was valid.
516 compiled = dfilter_compile(cf->dfilter, &dfcode);
517 g_assert(!cf->dfilter || (compiled && dfcode));
519 /* Do we have any tap listeners with filters? */
520 filtering_tap_listeners = have_filtering_tap_listeners();
522 /* Get the union of the flags for all tap listeners. */
523 tap_flags = union_of_tap_listener_flags();
525 reset_tap_listeners();
527 cf_callback_invoke(cf_cb_file_read_start, cf);
529 name_ptr = get_basename(cf->filename);
531 /* Find the size of the file. */
532 size = wtap_file_size(cf->wth, NULL);
534 /* Update the progress bar when it gets to this value. */
535 progbar_nextstep = 0;
536 /* When we reach the value that triggers a progress bar update,
537 bump that value by this amount. */
539 progbar_quantum = size/N_PROGBAR_UPDATES;
540 if (progbar_quantum < MIN_QUANTUM)
541 progbar_quantum = MIN_QUANTUM;
544 /* Progress so far. */
547 #ifdef NEW_PACKET_LIST
548 new_packet_list_freeze();
550 packet_list_freeze();
554 g_get_current_time(&start_time);
556 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
559 /* Create the progress bar if necessary.
560 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
562 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
563 progbar_val = calc_progbar_val( cf, size, data_offset);
564 progbar = delayed_create_progress_dlg("Loading", name_ptr,
565 TRUE, &stop_flag, &start_time, progbar_val);
568 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
569 when we update it, we have to run the GTK+ main loop to get it
570 to repaint what's pending, and doing so may involve an "ioctl()"
571 to see if there's any pending input from an X server, and doing
572 that for every packet can be costly, especially on a big file. */
573 if (data_offset >= progbar_nextstep) {
574 if (progbar != NULL) {
575 progbar_val = calc_progbar_val( cf, size, data_offset);
576 /* update the packet lists content on the first run or frequently on very large files */
577 /* (on smaller files the display update takes longer than reading the file) */
579 if (progbar_quantum > 500000 || displayed_once == 0) {
580 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
582 #ifdef NEW_PACKET_LIST
583 new_packet_list_thaw();
584 if (auto_scroll_live)
585 new_packet_list_moveto_end();
586 new_packet_list_freeze();
589 if (auto_scroll_live)
590 packet_list_moveto_end();
591 packet_list_freeze();
592 #endif /* NEW_PACKET_LIST */
595 #endif /* HAVE_LIBPCAP */
596 g_snprintf(status_str, sizeof(status_str),
597 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
598 data_offset / 1024, size / 1024);
599 update_progress_dlg(progbar, progbar_val, status_str);
601 progbar_nextstep += progbar_quantum;
606 /* Well, the user decided to abort the read. He/She will be warned and
607 it might be enough for him/her to work with the already loaded
609 This is especially true for very large capture files, where you don't
610 want to wait loading the whole file (which may last minutes or even
611 hours even on fast machines) just to see that it was the wrong file. */
615 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
617 CATCH(OutOfMemoryError) {
620 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
621 "%sOut Of Memory!%s\n"
623 "Sorry, but Wireshark has to terminate now!\n"
625 "Some infos / workarounds can be found at:\n"
626 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
627 simple_dialog_primary_start(), simple_dialog_primary_end());
628 /* we have to terminate, as we cannot recover from the memory error */
629 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
631 main_window_update();
632 /* XXX - how to avoid a busy wait? */
640 /* Cleanup and release all dfilter resources */
642 dfilter_free(dfcode);
645 /* We're done reading the file; destroy the progress bar if it was created. */
647 destroy_progress_dlg(progbar);
649 /* We're done reading sequentially through the file. */
650 cf->state = FILE_READ_DONE;
652 /* Close the sequential I/O side, to free up memory it requires. */
653 wtap_sequential_close(cf->wth);
655 /* Allow the protocol dissectors to free up memory that they
656 * don't need after the sequential run-through of the packets. */
657 postseq_cleanup_all_protocols();
659 /* compute the time it took to load the file */
660 compute_elapsed(&start_time);
662 /* Set the file encapsulation type now; we don't know what it is until
663 we've looked at all the packets, as we don't know until then whether
664 there's more than one type (and thus whether it's
665 WTAP_ENCAP_PER_PACKET). */
666 cf->lnk_t = wtap_file_encap(cf->wth);
668 cf->current_frame = cf->first_displayed;
671 #ifdef NEW_PACKET_LIST
672 new_packet_list_thaw();
677 cf_callback_invoke(cf_cb_file_read_finished, cf);
679 /* If we have any displayed packets to select, select the first of those
680 packets by making the first row the selected row. */
681 if (cf->first_displayed != NULL){
682 #ifdef NEW_PACKET_LIST
683 new_packet_list_select_first_row();
685 packet_list_select_row(0);
686 #endif /* NEW_PACKET_LIST */
690 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
691 "%sFile loading was cancelled!%s\n"
693 "The remaining packets in the file were discarded.\n"
695 "As a lot of packets from the original file will be missing,\n"
696 "remember to be careful when saving the current content to a file.\n",
697 simple_dialog_primary_start(), simple_dialog_primary_end());
698 return CF_READ_ERROR;
702 /* Put up a message box noting that the read failed somewhere along
703 the line. Don't throw out the stuff we managed to read, though,
707 case WTAP_ERR_UNSUPPORTED_ENCAP:
708 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
709 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
712 errmsg = errmsg_errno;
715 case WTAP_ERR_CANT_READ:
716 errmsg = "An attempt to read from the capture file failed for"
717 " some unknown reason.";
720 case WTAP_ERR_SHORT_READ:
721 errmsg = "The capture file appears to have been cut short"
722 " in the middle of a packet.";
725 case WTAP_ERR_BAD_RECORD:
726 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
727 "The capture file appears to be damaged or corrupt.\n(%s)",
730 errmsg = errmsg_errno;
734 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
735 "An error occurred while reading the"
736 " capture file: %s.", wtap_strerror(err));
737 errmsg = errmsg_errno;
740 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
741 return CF_READ_ERROR;
748 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
750 cf_status_t cf_status;
752 cf_status = cf_open(cf, fname, is_tempfile, err);
757 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
759 gint64 data_offset = 0;
761 volatile int newly_displayed_packets = 0;
763 gboolean filtering_tap_listeners;
765 volatile gboolean visible = FALSE;
768 /* Compile the current display filter.
769 * We assume this will not fail since cf->dfilter is only set in
770 * cf_filter IFF the filter was valid.
772 compiled = dfilter_compile(cf->dfilter, &dfcode);
773 g_assert(!cf->dfilter || (compiled && dfcode));
775 /* Do we have any tap listeners with filters? */
776 filtering_tap_listeners = have_filtering_tap_listeners();
778 /* Get the union of the flags for all tap listeners. */
779 tap_flags = union_of_tap_listener_flags();
783 #ifdef NEW_PACKET_LIST
784 new_packet_list_check_end();
785 new_packet_list_freeze();
787 packet_list_check_end();
788 packet_list_freeze();
791 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
793 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
794 if (cf->state == FILE_READ_ABORTED) {
795 /* Well, the user decided to exit Wireshark. Break out of the
796 loop, and let the code below (which is called even if there
797 aren't any packets left to read) exit. */
801 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
802 data_offset) != -1) {
804 newly_displayed_packets++;
809 CATCH(OutOfMemoryError) {
812 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
813 "%sOut Of Memory!%s\n"
815 "Sorry, but Wireshark has to terminate now!\n"
817 "The capture file is not lost, it can be found at:\n"
820 "Some infos / workarounds can be found at:\n"
821 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
822 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
823 /* we have to terminate, as we cannot recover from the memory error */
824 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
826 main_window_update();
827 /* XXX - how to avoid a busy wait? */
830 #ifdef NEW_PACKET_LIST
831 new_packet_list_thaw();
835 return CF_READ_ABORTED;
841 /* Cleanup and release all dfilter resources */
843 dfilter_free(dfcode);
846 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
847 cf->count, cf->state, *err);*/
849 #ifdef NEW_PACKET_LIST
850 new_packet_list_thaw();
851 /* With the new packet list the first packet
852 * isn't automatically selected.
854 if(!cf->current_frame)
855 new_packet_list_select_first_row();
857 /* XXX - this causes "flickering" of the list */
861 /* moving to the end of the packet list - if the user requested so and
862 we have some new packets. */
863 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
864 #ifdef NEW_PACKET_LIST
866 new_packet_list_moveto_end();
868 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
869 packet_list_thaw() is done, see bugzilla 1188 */
870 /* XXX - this cheats and looks inside the packet list to find the final
872 packet_list_moveto_end();
873 #endif /* NEW_PACKET_LIST */
875 if (cf->state == FILE_READ_ABORTED) {
876 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
877 so that our caller can kill off the capture child process;
878 this will cause an EOF on the pipe from the child, so
879 "cf_finish_tail()" will be called, and it will clean up
881 return CF_READ_ABORTED;
882 } else if (*err != 0) {
883 /* We got an error reading the capture file.
884 XXX - pop up a dialog box instead? */
885 g_warning("Error \"%s\" while reading: \"%s\"\n",
886 wtap_strerror(*err), cf->filename);
888 return CF_READ_ERROR;
894 cf_finish_tail(capture_file *cf, int *err)
899 gboolean filtering_tap_listeners;
903 /* Compile the current display filter.
904 * We assume this will not fail since cf->dfilter is only set in
905 * cf_filter IFF the filter was valid.
907 compiled = dfilter_compile(cf->dfilter, &dfcode);
908 g_assert(!cf->dfilter || (compiled && dfcode));
910 /* Do we have any tap listeners with filters? */
911 filtering_tap_listeners = have_filtering_tap_listeners();
913 /* Get the union of the flags for all tap listeners. */
914 tap_flags = union_of_tap_listener_flags();
916 if(cf->wth == NULL) {
918 return CF_READ_ERROR;
921 #ifdef NEW_PACKET_LIST
922 new_packet_list_check_end();
923 new_packet_list_freeze();
925 packet_list_check_end();
926 packet_list_freeze();
929 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
930 if (cf->state == FILE_READ_ABORTED) {
931 /* Well, the user decided to abort the read. Break out of the
932 loop, and let the code below (which is called even if there
933 aren't any packets left to read) exit. */
936 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
939 /* Cleanup and release all dfilter resources */
941 dfilter_free(dfcode);
944 #ifdef NEW_PACKET_LIST
945 new_packet_list_thaw();
950 if (cf->state == FILE_READ_ABORTED) {
951 /* Well, the user decided to abort the read. We're only called
952 when the child capture process closes the pipe to us (meaning
953 it's probably exited), so we can just close the capture
954 file; we return CF_READ_ABORTED so our caller can do whatever
955 is appropriate when that happens. */
957 return CF_READ_ABORTED;
960 if (auto_scroll_live && cf->plist_end != NULL)
961 #ifdef NEW_PACKET_LIST
962 new_packet_list_moveto_end();
964 /* XXX - this cheats and looks inside the packet list to find the final
966 packet_list_moveto_end();
969 /* We're done reading sequentially through the file. */
970 cf->state = FILE_READ_DONE;
972 /* We're done reading sequentially through the file; close the
973 sequential I/O side, to free up memory it requires. */
974 wtap_sequential_close(cf->wth);
976 /* Allow the protocol dissectors to free up memory that they
977 * don't need after the sequential run-through of the packets. */
978 postseq_cleanup_all_protocols();
980 /* Set the file encapsulation type now; we don't know what it is until
981 we've looked at all the packets, as we don't know until then whether
982 there's more than one type (and thus whether it's
983 WTAP_ENCAP_PER_PACKET). */
984 cf->lnk_t = wtap_file_encap(cf->wth);
987 /* We got an error reading the capture file.
988 XXX - pop up a dialog box? */
989 return CF_READ_ERROR;
994 #endif /* HAVE_LIBPCAP */
997 cf_get_display_name(capture_file *cf)
999 const gchar *displayname;
1001 /* Return a name to use in displays */
1002 if (!cf->is_tempfile) {
1003 /* Get the last component of the file name, and use that. */
1005 displayname = get_basename(cf->filename);
1007 displayname="(No file)";
1010 /* The file we read is a temporary file from a live capture;
1011 we don't mention its name. */
1012 displayname = "(Untitled)";
1017 /* XXX - use a macro instead? */
1019 cf_get_packet_count(capture_file *cf)
1024 /* XXX - use a macro instead? */
1026 cf_set_packet_count(capture_file *cf, int packet_count)
1028 cf->count = packet_count;
1031 /* XXX - use a macro instead? */
1033 cf_is_tempfile(capture_file *cf)
1035 return cf->is_tempfile;
1038 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1040 cf->is_tempfile = is_tempfile;
1044 /* XXX - use a macro instead? */
1045 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1047 cf->drops_known = drops_known;
1050 /* XXX - use a macro instead? */
1051 void cf_set_drops(capture_file *cf, guint32 drops)
1056 /* XXX - use a macro instead? */
1057 gboolean cf_get_drops_known(capture_file *cf)
1059 return cf->drops_known;
1062 /* XXX - use a macro instead? */
1063 guint32 cf_get_drops(capture_file *cf)
1068 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1070 cf->rfcode = rfcode;
1073 #ifdef NEW_PACKET_LIST
1075 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1076 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1078 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1080 gboolean add_to_packet_list)
1082 gboolean create_proto_tree = FALSE;
1087 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1089 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1090 &first_ts, &prev_dis_ts, &prev_cap_ts);
1093 + we have a display filter and are re-applying it;
1094 + we have tap listeners with filters;
1095 + we have tap listeners that require a protocol tree;
1097 allocate a protocol tree root node, so that we'll construct
1098 a protocol tree against which a filter expression can be
1100 if ((dfcode != NULL && refilter) ||
1101 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1102 create_proto_tree = TRUE;
1104 /* Dissect the frame. */
1105 epan_dissect_init(&edt, create_proto_tree, FALSE);
1107 if (dfcode != NULL && refilter) {
1108 epan_dissect_prime_dfilter(&edt, dfcode);
1111 tap_queue_init(&edt);
1112 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1113 tap_push_tapped_queue(&edt);
1115 /* If we have a display filter, apply it if we're refiltering, otherwise
1116 leave the "passed_dfilter" flag alone.
1118 If we don't have a display filter, set "passed_dfilter" to 1. */
1119 if (dfcode != NULL) {
1121 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1124 fdata->flags.passed_dfilter = 1;
1126 if (add_to_packet_list) {
1127 /* We fill the needed columns from new_packet_list */
1128 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1131 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1133 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1135 /* If we haven't yet seen the first frame, this is it.
1137 XXX - we must do this before we add the row to the display,
1138 as, if the display's GtkCList's selection mode is
1139 GTK_SELECTION_BROWSE, when the first entry is added to it,
1140 "cf_select_packet()" will be called, and it will fetch the row
1141 data for the 0th row, and will get a null pointer rather than
1142 "fdata", as "gtk_clist_append()" won't yet have returned and
1143 thus "gtk_clist_set_row_data()" won't yet have been called.
1145 We thus need to leave behind bread crumbs so that
1146 "cf_select_packet()" can find this frame. See the comment
1147 in "cf_select_packet()". */
1148 if (cf->first_displayed == NULL)
1149 cf->first_displayed = fdata;
1151 /* This is the last frame we've seen so far. */
1152 cf->last_displayed = fdata;
1154 cf->displayed_count++;
1157 epan_dissect_cleanup(&edt);
1164 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1165 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1167 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1169 gboolean add_to_packet_list _U_)
1171 gboolean create_proto_tree = FALSE;
1178 /* just add some value here until we know if it is being displayed or not */
1179 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1181 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1182 &first_ts, &prev_dis_ts, &prev_cap_ts);
1186 we have a display filter and are re-applying it;
1188 we have a list of color filters;
1190 we have tap listeners with filters;
1192 we have tap listeners that require a protocol tree;
1194 we have custom columns;
1196 allocate a protocol tree root node, so that we'll construct
1197 a protocol tree against which a filter expression can be
1199 if ((dfcode != NULL && refilter) ||
1200 color_filters_used() ||
1201 have_custom_cols(cinfo) ||
1202 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1203 create_proto_tree = TRUE;
1205 /* Dissect the frame. */
1206 epan_dissect_init(&edt, create_proto_tree, FALSE);
1208 if (dfcode != NULL && refilter) {
1209 epan_dissect_prime_dfilter(&edt, dfcode);
1212 /* prepare color filters */
1213 color_filters_prime_edt(&edt);
1214 col_custom_prime_edt(&edt, cinfo);
1216 tap_queue_init(&edt);
1217 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1218 tap_push_tapped_queue(&edt);
1220 /* If we have a display filter, apply it if we're refiltering, otherwise
1221 leave the "passed_dfilter" flag alone.
1223 If we don't have a display filter, set "passed_dfilter" to 1. */
1224 if (dfcode != NULL) {
1226 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1229 fdata->flags.passed_dfilter = 1;
1231 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1233 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1235 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1237 /* If we haven't yet seen the first frame, this is it.
1239 XXX - we must do this before we add the row to the display,
1240 as, if the display's GtkCList's selection mode is
1241 GTK_SELECTION_BROWSE, when the first entry is added to it,
1242 "cf_select_packet()" will be called, and it will fetch the row
1243 data for the 0th row, and will get a null pointer rather than
1244 "fdata", as "gtk_clist_append()" won't yet have returned and
1245 thus "gtk_clist_set_row_data()" won't yet have been called.
1247 We thus need to leave behind bread crumbs so that
1248 "cf_select_packet()" can find this frame. See the comment
1249 in "cf_select_packet()". */
1250 if (cf->first_displayed == NULL)
1251 cf->first_displayed = fdata;
1253 /* This is the last frame we've seen so far. */
1254 cf->last_displayed = fdata;
1256 row = packet_list_append(cinfo->col_data, fdata);
1258 /* colorize packet: first apply color filters
1259 * then if packet is marked, use preferences to overwrite color
1260 * we do both to make sure that when a packet gets un-marked, the
1261 * color will be correctly set (fixes bug 2038)
1263 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1264 if (fdata->flags.marked) {
1265 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1268 cf->displayed_count++;
1271 epan_dissect_cleanup(&edt);
1276 /* read in a new packet */
1277 /* returns the row of the new packet in the packet list or -1 if not displayed */
1279 read_packet(capture_file *cf, dfilter_t *dfcode,
1280 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1282 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1283 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1284 const guchar *buf = wtap_buf_ptr(cf->wth);
1291 /* Allocate the next list entry, and add it to the list.
1292 * memory chunks have been deprecated in favor of the slice allocator,
1293 * which has been added in 2.10
1295 #if GLIB_CHECK_VERSION(2,10,0)
1296 fdata = g_slice_new(frame_data);
1298 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1301 frame_data_init(fdata, cf->count, phdr, offset, cum_bytes);
1303 #ifdef NEW_PACKET_LIST
1304 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1305 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1311 epan_dissect_init(&edt, TRUE, FALSE);
1312 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1313 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1314 passed = dfilter_apply_edt(cf->rfcode, &edt);
1315 epan_dissect_cleanup(&edt);
1319 cap_file_add_fdata(cf, fdata);
1321 cf->f_datalen = offset + fdata->cap_len;
1323 if (!cf->redissecting) {
1324 row = add_packet_to_packet_list(fdata, cf, dfcode,
1325 filtering_tap_listeners, tap_flags,
1326 pseudo_header, buf, TRUE, TRUE);
1329 /* We didn't pass read filter so roll back count */
1332 /* XXX - if we didn't have read filters, or if we could avoid
1333 allocating the "frame_data" structure until we knew whether
1334 the frame passed the read filter, we could use a G_ALLOC_ONLY
1337 ...but, at least in one test I did, where I just made the chunk
1338 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1339 seem to save a noticeable amount of time or space. */
1340 #if GLIB_CHECK_VERSION(2,10,0)
1341 /* memory chunks have been deprecated in favor of the slice allocator,
1342 * which has been added in 2.10
1344 g_slice_free(frame_data,fdata);
1346 g_mem_chunk_free(cf->plist_chunk, fdata);
1354 cf_merge_files(char **out_filenamep, int in_file_count,
1355 char *const *in_filenames, int file_type, gboolean do_append)
1357 merge_in_file_t *in_files;
1363 int open_err, read_err, write_err, close_err;
1367 char errmsg_errno[1024+1];
1369 gboolean got_read_error = FALSE, got_write_error = FALSE;
1371 progdlg_t *progbar = NULL;
1373 gint64 f_len, file_pos;
1375 GTimeVal start_time;
1376 gchar status_str[100];
1377 gint64 progbar_nextstep;
1378 gint64 progbar_quantum;
1380 /* open the input files */
1381 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1382 &open_err, &err_info, &err_fileno)) {
1384 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1389 if (*out_filenamep != NULL) {
1390 out_filename = *out_filenamep;
1391 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1395 out_fd = create_tempfile(&tmpname, "wireshark");
1398 out_filename = g_strdup(tmpname);
1399 *out_filenamep = out_filename;
1403 merge_close_in_files(in_file_count, in_files);
1405 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1409 pdh = wtap_dump_fdopen(out_fd, file_type,
1410 merge_select_frame_type(in_file_count, in_files),
1411 merge_max_snapshot_length(in_file_count, in_files),
1412 FALSE /* compressed */, &open_err);
1415 merge_close_in_files(in_file_count, in_files);
1417 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1422 /* Get the sum of the sizes of all the files. */
1424 for (i = 0; i < in_file_count; i++)
1425 f_len += in_files[i].size;
1427 /* Update the progress bar when it gets to this value. */
1428 progbar_nextstep = 0;
1429 /* When we reach the value that triggers a progress bar update,
1430 bump that value by this amount. */
1431 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1432 /* Progress so far. */
1436 g_get_current_time(&start_time);
1438 /* do the merge (or append) */
1441 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1444 wth = merge_read_packet(in_file_count, in_files, &read_err,
1448 got_read_error = TRUE;
1452 /* Get the sum of the data offsets in all of the files. */
1454 for (i = 0; i < in_file_count; i++)
1455 data_offset += in_files[i].data_offset;
1457 /* Create the progress bar if necessary.
1458 We check on every iteration of the loop, so that it takes no
1459 longer than the standard time to create it (otherwise, for a
1460 large file, we might take considerably longer than that standard
1461 time in order to get to the next progress bar step). */
1462 if (progbar == NULL) {
1463 progbar = delayed_create_progress_dlg("Merging", "files",
1464 FALSE, &stop_flag, &start_time, progbar_val);
1467 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1468 when we update it, we have to run the GTK+ main loop to get it
1469 to repaint what's pending, and doing so may involve an "ioctl()"
1470 to see if there's any pending input from an X server, and doing
1471 that for every packet can be costly, especially on a big file. */
1472 if (data_offset >= progbar_nextstep) {
1473 /* Get the sum of the seek positions in all of the files. */
1475 for (i = 0; i < in_file_count; i++)
1476 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1477 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1478 if (progbar_val > 1.0f) {
1479 /* Some file probably grew while we were reading it.
1480 That "shouldn't happen", so we'll just clip the progress
1484 if (progbar != NULL) {
1485 g_snprintf(status_str, sizeof(status_str),
1486 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1487 file_pos / 1024, f_len / 1024);
1488 update_progress_dlg(progbar, progbar_val, status_str);
1490 progbar_nextstep += progbar_quantum;
1494 /* Well, the user decided to abort the merge. */
1498 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1499 wtap_buf_ptr(wth), &write_err)) {
1500 got_write_error = TRUE;
1505 /* We're done merging the files; destroy the progress bar if it was created. */
1506 if (progbar != NULL)
1507 destroy_progress_dlg(progbar);
1509 merge_close_in_files(in_file_count, in_files);
1510 if (!got_read_error && !got_write_error) {
1511 if (!wtap_dump_close(pdh, &write_err))
1512 got_write_error = TRUE;
1514 wtap_dump_close(pdh, &close_err);
1516 if (got_read_error) {
1518 * Find the file on which we got the error, and report the error.
1520 for (i = 0; i < in_file_count; i++) {
1521 if (in_files[i].state == GOT_ERROR) {
1522 /* Put up a message box noting that a read failed somewhere along
1526 case WTAP_ERR_UNSUPPORTED_ENCAP:
1527 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1528 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1531 errmsg = errmsg_errno;
1534 case WTAP_ERR_CANT_READ:
1535 errmsg = "An attempt to read from the capture file %s failed for"
1536 " some unknown reason.";
1539 case WTAP_ERR_SHORT_READ:
1540 errmsg = "The capture file %s appears to have been cut short"
1541 " in the middle of a packet.";
1544 case WTAP_ERR_BAD_RECORD:
1545 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1546 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1549 errmsg = errmsg_errno;
1553 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1554 "An error occurred while reading the"
1555 " capture file %%s: %s.", wtap_strerror(read_err));
1556 errmsg = errmsg_errno;
1559 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1564 if (got_write_error) {
1565 /* Put up an alert box for the write error. */
1566 cf_write_failure_alert_box(out_filename, write_err);
1569 if (got_read_error || got_write_error || stop_flag) {
1570 /* Callers aren't expected to treat an error or an explicit abort
1571 differently - we put up error dialogs ourselves, so they don't
1579 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1581 const char *filter_new = dftext ? dftext : "";
1582 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1585 /* if new filter equals old one, do nothing unless told to do so */
1586 if (!force && strcmp(filter_new, filter_old) == 0) {
1592 if (dftext == NULL) {
1593 /* The new filter is an empty filter (i.e., display all packets).
1594 * so leave dfcode==NULL
1598 * We have a filter; make a copy of it (as we'll be saving it),
1599 * and try to compile it.
1601 dftext = g_strdup(dftext);
1602 if (!dfilter_compile(dftext, &dfcode)) {
1603 /* The attempt failed; report an error. */
1604 gchar *safe_dftext = simple_dialog_format_message(dftext);
1605 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1607 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1610 "The following display filter isn't a valid display filter:\n%s\n"
1611 "See the help for a description of the display filter syntax.",
1612 simple_dialog_primary_start(), safe_dfilter_error_msg,
1613 simple_dialog_primary_end(), safe_dftext);
1614 g_free(safe_dfilter_error_msg);
1615 g_free(safe_dftext);
1621 if (dfcode == NULL) {
1622 /* Yes - free the filter text, and set it to null. */
1628 /* We have a valid filter. Replace the current filter. */
1629 g_free(cf->dfilter);
1630 cf->dfilter = dftext;
1632 /* Now rescan the packet list, applying the new filter, but not
1633 throwing away information constructed on a previous pass. */
1634 if (dftext == NULL) {
1635 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1637 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1640 /* Cleanup and release all dfilter resources */
1641 dfilter_free(dfcode);
1647 cf_colorize_packets(capture_file *cf)
1649 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1653 cf_reftime_packets(capture_file *cf)
1656 #ifdef NEW_PACKET_LIST
1657 ref_time_packets(cf);
1659 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1664 cf_redissect_packets(capture_file *cf)
1666 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1669 /* Rescan the list of packets, reconstructing the CList.
1671 "action" describes why we're doing this; it's used in the progress
1674 "action_item" describes what we're doing; it's used in the progress
1677 "refilter" is TRUE if we need to re-evaluate the filter expression.
1679 "redissect" is TRUE if we need to make the dissectors reconstruct
1680 any state information they have (because a preference that affects
1681 some dissector has changed, meaning some dissector might construct
1682 its state differently from the way it was constructed the last time). */
1683 #ifdef NEW_PACKET_LIST
1685 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1686 gboolean refilter, gboolean redissect)
1688 /* Rescan packets new packet list */
1690 progdlg_t *progbar = NULL;
1695 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1696 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1697 gboolean selected_frame_seen;
1700 GTimeVal start_time;
1701 gchar status_str[100];
1702 int progbar_nextstep;
1703 int progbar_quantum;
1705 gboolean filtering_tap_listeners;
1707 gboolean add_to_packet_list = FALSE;
1710 /* Compile the current display filter.
1711 * We assume this will not fail since cf->dfilter is only set in
1712 * cf_filter IFF the filter was valid.
1714 compiled = dfilter_compile(cf->dfilter, &dfcode);
1715 g_assert(!cf->dfilter || (compiled && dfcode));
1717 /* Do we have any tap listeners with filters? */
1718 filtering_tap_listeners = have_filtering_tap_listeners();
1720 /* Get the union of the flags for all tap listeners. */
1721 tap_flags = union_of_tap_listener_flags();
1723 reset_tap_listeners();
1724 /* Which frame, if any, is the currently selected frame?
1725 XXX - should the selected frame or the focus frame be the "current"
1726 frame, that frame being the one from which "Find Frame" searches
1728 selected_frame = cf->current_frame;
1730 /* Mark frane num as not found */
1731 selected_frame_num = -1;
1733 /* Freeze the packet list while we redo it, so we don't get any
1734 screen updates while it happens. */
1735 new_packet_list_freeze();
1738 /* We need to re-initialize all the state information that protocols
1739 keep, because some preference that controls a dissector has changed,
1740 which might cause the state information to be constructed differently
1741 by that dissector. */
1743 /* We might receive new packets while redissecting, and we don't
1744 want to dissect those before their time. */
1745 cf->redissecting = TRUE;
1747 /* Cleanup all data structures used for dissection. */
1748 cleanup_dissection();
1749 /* Initialize all data structures used for dissection. */
1752 /* We need to redissect the packets so we have to discard our old
1753 * packet list store. */
1754 new_packet_list_clear();
1755 add_to_packet_list = TRUE;
1758 /* We don't yet know which will be the first and last frames displayed. */
1759 cf->first_displayed = NULL;
1760 cf->last_displayed = NULL;
1764 /* We currently don't display any packets */
1765 cf->displayed_count = 0;
1767 /* Iterate through the list of frames. Call a routine for each frame
1768 to check whether it should be displayed and, if so, add it to
1769 the display list. */
1770 nstime_set_unset(&first_ts);
1771 nstime_set_unset(&prev_dis_ts);
1772 nstime_set_unset(&prev_cap_ts);
1775 /* Update the progress bar when it gets to this value. */
1776 progbar_nextstep = 0;
1777 /* When we reach the value that triggers a progress bar update,
1778 bump that value by this amount. */
1779 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1780 /* Count of packets at which we've looked. */
1782 /* Progress so far. */
1786 g_get_current_time(&start_time);
1788 /* no previous row yet */
1790 prev_frame_num = -1;
1793 preceding_frame_num = -1;
1794 preceding_frame = NULL;
1795 following_frame_num = -1;
1796 following_frame = NULL;
1798 selected_frame_seen = FALSE;
1800 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1801 /* Create the progress bar if necessary.
1802 We check on every iteration of the loop, so that it takes no
1803 longer than the standard time to create it (otherwise, for a
1804 large file, we might take considerably longer than that standard
1805 time in order to get to the next progress bar step). */
1806 if (progbar == NULL)
1807 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1808 &stop_flag, &start_time,
1811 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1812 when we update it, we have to run the GTK+ main loop to get it
1813 to repaint what's pending, and doing so may involve an "ioctl()"
1814 to see if there's any pending input from an X server, and doing
1815 that for every packet can be costly, especially on a big file. */
1816 if (count >= progbar_nextstep) {
1817 /* let's not divide by zero. I should never be started
1818 * with count == 0, so let's assert that
1820 g_assert(cf->count > 0);
1821 progbar_val = (gfloat) count / cf->count;
1823 if (progbar != NULL) {
1824 g_snprintf(status_str, sizeof(status_str),
1825 "%4u of %u frames", count, cf->count);
1826 update_progress_dlg(progbar, progbar_val, status_str);
1829 progbar_nextstep += progbar_quantum;
1833 /* Well, the user decided to abort the filtering. Just stop.
1835 XXX - go back to the previous filter? Users probably just
1836 want not to wait for a filtering operation to finish;
1837 unless we cancel by having no filter, reverting to the
1838 previous filter will probably be even more expensive than
1839 continuing the filtering, as it involves going back to the
1840 beginning and filtering, and even with no filter we currently
1841 have to re-generate the entire clist, which is also expensive.
1843 I'm not sure what Network Monitor does, but it doesn't appear
1844 to give you an unfiltered display if you cancel. */
1851 /* Since all state for the frame was destroyed, mark the frame
1852 * as not visited, free the GSList referring to the state
1853 * data (the per-frame data itself was freed by
1854 * "init_dissection()"), and null out the GSList pointer. */
1855 fdata->flags.visited = 0;
1856 frame_data_cleanup(fdata);
1858 /* cleanup_dissection() calls se_free_all();
1859 * And after that fdata->col_text (which is allocated using se_alloc0())
1860 * no longer points to valid memory.
1862 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1863 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1866 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1867 cf->pd, fdata->cap_len, &err, &err_info)) {
1868 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1869 cf_read_error_message(err, err_info), cf->filename);
1873 /* If the previous frame is displayed, and we haven't yet seen the
1874 selected frame, remember that frame - it's the closest one we've
1875 yet seen before the selected frame. */
1876 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1877 preceding_frame_num = prev_frame_num;
1878 preceding_frame = prev_frame;
1880 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1881 tap_flags, &cf->pseudo_header, cf->pd,
1883 add_to_packet_list);
1885 /* If this frame is displayed, and this is the first frame we've
1886 seen displayed after the selected frame, remember this frame -
1887 it's the closest one we've yet seen at or after the selected
1889 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1890 following_frame_num = fdata->num;
1891 following_frame = fdata;
1893 if (fdata == selected_frame) {
1894 selected_frame_seen = TRUE;
1895 if (fdata->flags.passed_dfilter)
1896 selected_frame_num = fdata->num;
1899 /* Remember this frame - it'll be the previous frame
1900 on the next pass through the loop. */
1901 prev_frame_num = fdata->num;
1905 /* We are done redissecting the packet list. */
1906 cf->redissecting = FALSE;
1909 /* Clear out what remains of the visited flags and per-frame data
1912 XXX - that may cause various forms of bogosity when dissecting
1913 these frames, as they won't have been seen by this sequential
1914 pass, but the only alternative I see is to keep scanning them
1915 even though the user requested that the scan stop, and that
1916 would leave the user stuck with an Wireshark grinding on
1917 until it finishes. Should we just stick them with that? */
1918 for (; fdata != NULL; fdata = fdata->next) {
1919 fdata->flags.visited = 0;
1920 frame_data_cleanup(fdata);
1924 /* We're done filtering the packets; destroy the progress bar if it
1926 if (progbar != NULL)
1927 destroy_progress_dlg(progbar);
1929 /* Unfreeze the packet list. */
1930 if (!add_to_packet_list)
1931 new_packet_list_recreate_visible_rows();
1933 new_packet_list_thaw();
1935 if (selected_frame_num == -1) {
1936 /* The selected frame didn't pass the filter. */
1937 if (selected_frame == NULL) {
1938 /* That's because there *was* no selected frame. Make the first
1939 displayed frame the current frame. */
1940 selected_frame_num = 0;
1942 /* Find the nearest displayed frame to the selected frame (whether
1943 it's before or after that frame) and make that the current frame.
1944 If the next and previous displayed frames are equidistant from the
1945 selected frame, choose the next one. */
1946 g_assert(following_frame == NULL ||
1947 following_frame->num >= selected_frame->num);
1948 g_assert(preceding_frame == NULL ||
1949 preceding_frame->num <= selected_frame->num);
1950 if (following_frame == NULL) {
1951 /* No frame after the selected frame passed the filter, so we
1952 have to select the last displayed frame before the selected
1954 selected_frame_num = preceding_frame_num;
1955 selected_frame = preceding_frame;
1956 } else if (preceding_frame == NULL) {
1957 /* No frame before the selected frame passed the filter, so we
1958 have to select the first displayed frame after the selected
1960 selected_frame_num = following_frame_num;
1961 selected_frame = following_frame;
1963 /* Frames before and after the selected frame passed the filter, so
1964 we'll select the previous frame */
1965 selected_frame_num = preceding_frame_num;
1966 selected_frame = preceding_frame;
1971 if (selected_frame_num == -1) {
1972 /* There are no frames displayed at all. */
1973 cf_unselect_packet(cf);
1975 /* Either the frame that was selected passed the filter, or we've
1976 found the nearest displayed frame to that frame. Select it, make
1977 it the focus row, and make it visible. */
1978 /* Set to invalid to force update of packet list and packet details */
1979 cf->current_row = -1;
1980 if (selected_frame_num == 0) {
1981 new_packet_list_select_first_row();
1983 new_packet_list_find_row_from_data(selected_frame, TRUE);
1987 /* Cleanup and release all dfilter resources */
1988 dfilter_free(dfcode);
1994 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1995 gboolean refilter, gboolean redissect)
1998 progdlg_t *progbar = NULL;
2003 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
2004 int selected_row, prev_row, preceding_row, following_row;
2005 gboolean selected_frame_seen;
2008 GTimeVal start_time;
2009 gchar status_str[100];
2010 int progbar_nextstep;
2011 int progbar_quantum;
2013 gboolean filtering_tap_listeners;
2015 gboolean add_to_packet_list = TRUE;
2018 /* Compile the current display filter.
2019 * We assume this will not fail since cf->dfilter is only set in
2020 * cf_filter IFF the filter was valid.
2022 compiled = dfilter_compile(cf->dfilter, &dfcode);
2023 g_assert(!cf->dfilter || (compiled && dfcode));
2025 /* Do we have any tap listeners with filters? */
2026 filtering_tap_listeners = have_filtering_tap_listeners();
2028 /* Get the union of the flags for all tap listeners. */
2029 tap_flags = union_of_tap_listener_flags();
2031 reset_tap_listeners();
2032 /* Which frame, if any, is the currently selected frame?
2033 XXX - should the selected frame or the focus frame be the "current"
2034 frame, that frame being the one from which "Find Frame" searches
2036 selected_frame = cf->current_frame;
2038 /* We don't yet know what row that frame will be on, if any, after we
2039 rebuild the clist, however. */
2042 /* Freeze the packet list while we redo it, so we don't get any
2043 screen updates while it happens. */
2044 packet_list_freeze();
2047 packet_list_clear();
2050 /* We need to re-initialize all the state information that protocols
2051 keep, because some preference that controls a dissector has changed,
2052 which might cause the state information to be constructed differently
2053 by that dissector. */
2055 /* We might receive new packets while redissecting, and we don't
2056 want to dissect those before their time. */
2057 cf->redissecting = TRUE;
2059 /* Cleanup all data structures used for dissection. */
2060 cleanup_dissection();
2061 /* Initialize all data structures used for dissection. */
2066 /* We don't yet know which will be the first and last frames displayed. */
2067 cf->first_displayed = NULL;
2068 cf->last_displayed = NULL;
2072 /* We currently don't display any packets */
2073 cf->displayed_count = 0;
2075 /* Iterate through the list of frames. Call a routine for each frame
2076 to check whether it should be displayed and, if so, add it to
2077 the display list. */
2078 nstime_set_unset(&first_ts);
2079 nstime_set_unset(&prev_dis_ts);
2080 nstime_set_unset(&prev_cap_ts);
2083 /* Update the progress bar when it gets to this value. */
2084 progbar_nextstep = 0;
2085 /* When we reach the value that triggers a progress bar update,
2086 bump that value by this amount. */
2087 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2088 /* Count of packets at which we've looked. */
2090 /* Progress so far. */
2094 g_get_current_time(&start_time);
2096 row = -1; /* no previous row yet */
2101 preceding_frame = NULL;
2103 following_frame = NULL;
2105 selected_frame_seen = FALSE;
2107 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2108 /* Create the progress bar if necessary.
2109 We check on every iteration of the loop, so that it takes no
2110 longer than the standard time to create it (otherwise, for a
2111 large file, we might take considerably longer than that standard
2112 time in order to get to the next progress bar step). */
2113 if (progbar == NULL)
2114 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2115 &stop_flag, &start_time,
2118 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2119 when we update it, we have to run the GTK+ main loop to get it
2120 to repaint what's pending, and doing so may involve an "ioctl()"
2121 to see if there's any pending input from an X server, and doing
2122 that for every packet can be costly, especially on a big file. */
2123 if (count >= progbar_nextstep) {
2124 /* let's not divide by zero. I should never be started
2125 * with count == 0, so let's assert that
2127 g_assert(cf->count > 0);
2128 progbar_val = (gfloat) count / cf->count;
2130 if (progbar != NULL) {
2131 g_snprintf(status_str, sizeof(status_str),
2132 "%4u of %u frames", count, cf->count);
2133 update_progress_dlg(progbar, progbar_val, status_str);
2136 progbar_nextstep += progbar_quantum;
2140 /* Well, the user decided to abort the filtering. Just stop.
2142 XXX - go back to the previous filter? Users probably just
2143 want not to wait for a filtering operation to finish;
2144 unless we cancel by having no filter, reverting to the
2145 previous filter will probably be even more expensive than
2146 continuing the filtering, as it involves going back to the
2147 beginning and filtering, and even with no filter we currently
2148 have to re-generate the entire clist, which is also expensive.
2150 I'm not sure what Network Monitor does, but it doesn't appear
2151 to give you an unfiltered display if you cancel. */
2158 /* Since all state for the frame was destroyed, mark the frame
2159 * as not visited, free the GSList referring to the state
2160 * data (the per-frame data itself was freed by
2161 * "init_dissection()"), and null out the GSList pointer.
2163 fdata->flags.visited = 0;
2164 frame_data_cleanup(fdata);
2167 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2168 cf->pd, fdata->cap_len, &err, &err_info)) {
2169 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2170 cf_read_error_message(err, err_info), cf->filename);
2174 /* If the previous frame is displayed, and we haven't yet seen the
2175 selected frame, remember that frame - it's the closest one we've
2176 yet seen before the selected frame. */
2177 if (prev_row != -1 && !selected_frame_seen) {
2178 preceding_row = prev_row;
2179 preceding_frame = prev_frame;
2181 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2182 tap_flags, &cf->pseudo_header, cf->pd,
2184 add_to_packet_list);
2186 /* If this frame is displayed, and this is the first frame we've
2187 seen displayed after the selected frame, remember this frame -
2188 it's the closest one we've yet seen at or after the selected
2190 if (row != -1 && selected_frame_seen && following_row == -1) {
2191 following_row = row;
2192 following_frame = fdata;
2194 if (fdata == selected_frame) {
2196 selected_frame_seen = TRUE;
2199 /* Remember this row/frame - it'll be the previous row/frame
2200 on the next pass through the loop. */
2205 /* We are done redissecting the packet list. */
2206 cf->redissecting = FALSE;
2209 /* Clear out what remains of the visited flags and per-frame data
2212 XXX - that may cause various forms of bogosity when dissecting
2213 these frames, as they won't have been seen by this sequential
2214 pass, but the only alternative I see is to keep scanning them
2215 even though the user requested that the scan stop, and that
2216 would leave the user stuck with an Wireshark grinding on
2217 until it finishes. Should we just stick them with that? */
2218 for (; fdata != NULL; fdata = fdata->next) {
2219 fdata->flags.visited = 0;
2220 frame_data_cleanup(fdata);
2224 /* We're done filtering the packets; destroy the progress bar if it
2226 if (progbar != NULL)
2227 destroy_progress_dlg(progbar);
2229 /* Unfreeze the packet list. */
2232 if (selected_row == -1) {
2233 /* The selected frame didn't pass the filter. */
2234 if (selected_frame == NULL) {
2235 /* That's because there *was* no selected frame. Make the first
2236 displayed frame the current frame. */
2239 /* Find the nearest displayed frame to the selected frame (whether
2240 it's before or after that frame) and make that the current frame.
2241 If the next and previous displayed frames are equidistant from the
2242 selected frame, choose the next one. */
2243 g_assert(following_frame == NULL ||
2244 following_frame->num >= selected_frame->num);
2245 g_assert(preceding_frame == NULL ||
2246 preceding_frame->num <= selected_frame->num);
2247 if (following_frame == NULL) {
2248 /* No frame after the selected frame passed the filter, so we
2249 have to select the last displayed frame before the selected
2251 selected_row = preceding_row;
2252 } else if (preceding_frame == NULL) {
2253 /* No frame before the selected frame passed the filter, so we
2254 have to select the first displayed frame after the selected
2256 selected_row = following_row;
2258 /* Frames before and after the selected frame passed the filter, so
2259 we'll select the previous frame */
2260 selected_row = preceding_row;
2265 if (selected_row == -1) {
2266 /* There are no frames displayed at all. */
2267 cf_unselect_packet(cf);
2269 /* Either the frame that was selected passed the filter, or we've
2270 found the nearest displayed frame to that frame. Select it, make
2271 it the focus row, and make it visible. */
2272 if (selected_row == 0) {
2273 /* Set to invalid to force update of packet list and packet details */
2274 cf->current_row = -1;
2276 packet_list_set_selected_row(selected_row);
2279 /* Cleanup and release all dfilter resources */
2280 dfilter_free(dfcode);
2282 #endif /* NEW_PACKET_LIST */
2285 * Scan trough all frame data and recalculate the ref time
2286 * without rereading the file.
2287 * XXX - do we need a progres bar or is this fast enough?
2289 #ifdef NEW_PACKET_LIST
2291 ref_time_packets(capture_file *cf)
2295 nstime_set_unset(&first_ts);
2296 nstime_set_unset(&prev_dis_ts);
2297 nstime_set_unset(&prev_cap_ts);
2300 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2301 /* just add some value here until we know if it is being displayed or not */
2302 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2304 /* If we don't have the time stamp of the first packet in the
2305 capture, it's because this is the first packet. Save the time
2306 stamp of this packet as the time stamp of the first packet. */
2307 if (nstime_is_unset(&first_ts)) {
2308 first_ts = fdata->abs_ts;
2310 /* if this frames is marked as a reference time frame, reset
2311 firstsec and firstusec to this frame */
2312 if(fdata->flags.ref_time){
2313 first_ts = fdata->abs_ts;
2316 /* If we don't have the time stamp of the previous displayed packet,
2317 it's because this is the first displayed packet. Save the time
2318 stamp of this packet as the time stamp of the previous displayed
2320 if (nstime_is_unset(&prev_dis_ts)) {
2321 prev_dis_ts = fdata->abs_ts;
2324 /* Get the time elapsed between the first packet and this packet. */
2325 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2327 /* If it's greater than the current elapsed time, set the elapsed time
2328 to it (we check for "greater than" so as not to be confused by
2329 time moving backwards). */
2330 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2331 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2332 cf->elapsed_time = fdata->rel_ts;
2335 /* Get the time elapsed between the previous displayed packet and
2337 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2339 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2340 /* This frame either passed the display filter list or is marked as
2341 a time reference frame. All time reference frames are displayed
2342 even if they dont pass the display filter */
2343 if(fdata->flags.ref_time){
2344 /* if this was a TIME REF frame we should reset the cul bytes field */
2345 cum_bytes = fdata->pkt_len;
2346 fdata->cum_bytes = cum_bytes;
2348 /* increase cum_bytes with this packets length */
2349 cum_bytes += fdata->pkt_len;
2363 process_specified_packets(capture_file *cf, packet_range_t *range,
2364 const char *string1, const char *string2, gboolean terminate_is_stop,
2365 gboolean (*callback)(capture_file *, frame_data *,
2366 union wtap_pseudo_header *, const guint8 *, void *),
2367 void *callback_args)
2372 union wtap_pseudo_header pseudo_header;
2373 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2374 psp_return_t ret = PSP_FINISHED;
2376 progdlg_t *progbar = NULL;
2379 gboolean progbar_stop_flag;
2380 GTimeVal progbar_start_time;
2381 gchar progbar_status_str[100];
2382 int progbar_nextstep;
2383 int progbar_quantum;
2384 range_process_e process_this;
2386 /* Update the progress bar when it gets to this value. */
2387 progbar_nextstep = 0;
2388 /* When we reach the value that triggers a progress bar update,
2389 bump that value by this amount. */
2390 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2391 /* Count of packets at which we've looked. */
2393 /* Progress so far. */
2396 progbar_stop_flag = FALSE;
2397 g_get_current_time(&progbar_start_time);
2399 packet_range_process_init(range);
2401 /* Iterate through the list of packets, printing the packets that
2402 were selected by the current display filter. */
2403 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2404 /* Create the progress bar if necessary.
2405 We check on every iteration of the loop, so that it takes no
2406 longer than the standard time to create it (otherwise, for a
2407 large file, we might take considerably longer than that standard
2408 time in order to get to the next progress bar step). */
2409 if (progbar == NULL)
2410 progbar = delayed_create_progress_dlg(string1, string2,
2413 &progbar_start_time,
2416 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2417 when we update it, we have to run the GTK+ main loop to get it
2418 to repaint what's pending, and doing so may involve an "ioctl()"
2419 to see if there's any pending input from an X server, and doing
2420 that for every packet can be costly, especially on a big file. */
2421 if (progbar_count >= progbar_nextstep) {
2422 /* let's not divide by zero. I should never be started
2423 * with count == 0, so let's assert that
2425 g_assert(cf->count > 0);
2426 progbar_val = (gfloat) progbar_count / cf->count;
2428 if (progbar != NULL) {
2429 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2430 "%4u of %u packets", progbar_count, cf->count);
2431 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2434 progbar_nextstep += progbar_quantum;
2437 if (progbar_stop_flag) {
2438 /* Well, the user decided to abort the operation. Just stop,
2439 and arrange to return PSP_STOPPED to our caller, so they know
2440 it was stopped explicitly. */
2447 /* do we have to process this packet? */
2448 process_this = packet_range_process_packet(range, fdata);
2449 if (process_this == range_process_next) {
2450 /* this packet uninteresting, continue with next one */
2452 } else if (process_this == range_processing_finished) {
2453 /* all interesting packets processed, stop the loop */
2457 /* Get the packet */
2458 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2459 pd, fdata->cap_len, &err, &err_info)) {
2460 /* Attempt to get the packet failed. */
2461 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2462 cf_read_error_message(err, err_info), cf->filename);
2466 /* Process the packet */
2467 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2468 /* Callback failed. We assume it reported the error appropriately. */
2474 /* We're done printing the packets; destroy the progress bar if
2476 if (progbar != NULL)
2477 destroy_progress_dlg(progbar);
2483 gboolean construct_protocol_tree;
2485 } retap_callback_args_t;
2488 retap_packet(capture_file *cf _U_, frame_data *fdata,
2489 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2492 retap_callback_args_t *args = argsp;
2495 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2496 tap_queue_init(&edt);
2497 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2498 tap_push_tapped_queue(&edt);
2499 epan_dissect_cleanup(&edt);
2505 cf_retap_packets(capture_file *cf)
2507 packet_range_t range;
2508 retap_callback_args_t callback_args;
2509 gboolean filtering_tap_listeners;
2512 /* Do we have any tap listeners with filters? */
2513 filtering_tap_listeners = have_filtering_tap_listeners();
2515 tap_flags = union_of_tap_listener_flags();
2517 /* If any tap listeners have filters, or require the protocol tree,
2518 construct the protocol tree. */
2519 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2520 (tap_flags & TL_REQUIRES_PROTO_TREE);
2522 /* If any tap listeners require the columns, construct them. */
2523 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2525 /* Reset the tap listeners. */
2526 reset_tap_listeners();
2528 /* Iterate through the list of packets, dissecting all packets and
2529 re-running the taps. */
2530 packet_range_init(&range);
2531 packet_range_process_init(&range);
2532 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2533 "all packets", TRUE, retap_packet,
2536 /* Completed successfully. */
2540 /* Well, the user decided to abort the refiltering.
2541 Return CF_READ_ABORTED so our caller knows they did that. */
2542 return CF_READ_ABORTED;
2545 /* Error while retapping. */
2546 return CF_READ_ERROR;
2549 g_assert_not_reached();
2554 print_args_t *print_args;
2555 gboolean print_header_line;
2556 char *header_line_buf;
2557 int header_line_buf_len;
2558 gboolean print_formfeed;
2559 gboolean print_separator;
2563 } print_callback_args_t;
2566 print_packet(capture_file *cf, frame_data *fdata,
2567 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2570 print_callback_args_t *args = argsp;
2577 gboolean proto_tree_needed;
2578 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2579 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2581 /* Create the protocol tree, and make it visible, if we're printing
2582 the dissection or the hex data.
2583 XXX - do we need it if we're just printing the hex data? */
2585 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2586 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2588 /* Fill in the column information if we're printing the summary
2590 if (args->print_args->print_summary) {
2591 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2592 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2594 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2596 if (args->print_formfeed) {
2597 if (!new_page(args->print_args->stream))
2600 if (args->print_separator) {
2601 if (!print_line(args->print_args->stream, 0, ""))
2607 * We generate bookmarks, if the output format supports them.
2608 * The name is "__frameN__".
2610 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2612 if (args->print_args->print_summary) {
2613 if (args->print_header_line) {
2614 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2616 args->print_header_line = FALSE; /* we might not need to print any more */
2618 cp = &args->line_buf[0];
2620 for (i = 0; i < cf->cinfo.num_cols; i++) {
2621 /* Find the length of the string for this column. */
2622 column_len = (int) strlen(cf->cinfo.col_data[i]);
2623 if (args->col_widths[i] > column_len)
2624 column_len = args->col_widths[i];
2626 /* Make sure there's room in the line buffer for the column; if not,
2627 double its length. */
2628 line_len += column_len + 1; /* "+1" for space */
2629 if (line_len > args->line_buf_len) {
2630 cp_off = (int) (cp - args->line_buf);
2631 args->line_buf_len = 2 * line_len;
2632 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2633 cp = args->line_buf + cp_off;
2636 /* Right-justify the packet number column. */
2637 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2638 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2640 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2642 if (i != cf->cinfo.num_cols - 1)
2648 * Generate a bookmark, using the summary line as the title.
2650 if (!print_bookmark(args->print_args->stream, bookmark_name,
2654 if (!print_line(args->print_args->stream, 0, args->line_buf))
2658 * Generate a bookmark, using "Frame N" as the title, as we're not
2659 * printing the summary line.
2661 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2662 if (!print_bookmark(args->print_args->stream, bookmark_name,
2665 } /* if (print_summary) */
2667 if (args->print_args->print_dissections != print_dissections_none) {
2668 if (args->print_args->print_summary) {
2669 /* Separate the summary line from the tree with a blank line. */
2670 if (!print_line(args->print_args->stream, 0, ""))
2674 /* Print the information in that tree. */
2675 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2678 /* Print a blank line if we print anything after this (aka more than one packet). */
2679 args->print_separator = TRUE;
2681 /* Print a header line if we print any more packet summaries */
2682 args->print_header_line = TRUE;
2685 if (args->print_args->print_hex) {
2686 /* Print the full packet data as hex. */
2687 if (!print_hex_data(args->print_args->stream, &edt))
2690 /* Print a blank line if we print anything after this (aka more than one packet). */
2691 args->print_separator = TRUE;
2693 /* Print a header line if we print any more packet summaries */
2694 args->print_header_line = TRUE;
2695 } /* if (args->print_args->print_dissections != print_dissections_none) */
2697 epan_dissect_cleanup(&edt);
2699 /* do we want to have a formfeed between each packet from now on? */
2700 if(args->print_args->print_formfeed) {
2701 args->print_formfeed = TRUE;
2707 epan_dissect_cleanup(&edt);
2712 cf_print_packets(capture_file *cf, print_args_t *print_args)
2715 print_callback_args_t callback_args;
2723 callback_args.print_args = print_args;
2724 callback_args.print_header_line = TRUE;
2725 callback_args.header_line_buf = NULL;
2726 callback_args.header_line_buf_len = 256;
2727 callback_args.print_formfeed = FALSE;
2728 callback_args.print_separator = FALSE;
2729 callback_args.line_buf = NULL;
2730 callback_args.line_buf_len = 256;
2731 callback_args.col_widths = NULL;
2733 if (!print_preamble(print_args->stream, cf->filename)) {
2734 destroy_print_stream(print_args->stream);
2735 return CF_PRINT_WRITE_ERROR;
2738 if (print_args->print_summary) {
2739 /* We're printing packet summaries. Allocate the header line buffer
2740 and get the column widths. */
2741 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2743 /* Find the widths for each of the columns - maximum of the
2744 width of the title and the width of the data - and construct
2745 a buffer with a line containing the column titles. */
2746 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2747 cp = &callback_args.header_line_buf[0];
2749 for (i = 0; i < cf->cinfo.num_cols; i++) {
2750 /* Don't pad the last column. */
2751 if (i == cf->cinfo.num_cols - 1)
2752 callback_args.col_widths[i] = 0;
2754 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2755 data_width = get_column_char_width(get_column_format(i));
2756 if (data_width > callback_args.col_widths[i])
2757 callback_args.col_widths[i] = data_width;
2760 /* Find the length of the string for this column. */
2761 column_len = (int) strlen(cf->cinfo.col_title[i]);
2762 if (callback_args.col_widths[i] > column_len)
2763 column_len = callback_args.col_widths[i];
2765 /* Make sure there's room in the line buffer for the column; if not,
2766 double its length. */
2767 line_len += column_len + 1; /* "+1" for space */
2768 if (line_len > callback_args.header_line_buf_len) {
2769 cp_off = (int) (cp - callback_args.header_line_buf);
2770 callback_args.header_line_buf_len = 2 * line_len;
2771 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2772 callback_args.header_line_buf_len + 1);
2773 cp = callback_args.header_line_buf + cp_off;
2776 /* Right-justify the packet number column. */
2777 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2778 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2780 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2782 if (i != cf->cinfo.num_cols - 1)
2787 /* Now start out the main line buffer with the same length as the
2788 header line buffer. */
2789 callback_args.line_buf_len = callback_args.header_line_buf_len;
2790 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2791 } /* if (print_summary) */
2793 /* Iterate through the list of packets, printing the packets we were
2795 ret = process_specified_packets(cf, &print_args->range, "Printing",
2796 "selected packets", TRUE, print_packet,
2799 g_free(callback_args.header_line_buf);
2800 g_free(callback_args.line_buf);
2801 g_free(callback_args.col_widths);
2806 /* Completed successfully. */
2810 /* Well, the user decided to abort the printing.
2812 XXX - note that what got generated before they did that
2813 will get printed if we're piping to a print program; we'd
2814 have to write to a file and then hand that to the print
2815 program to make it actually not print anything. */
2819 /* Error while printing.
2821 XXX - note that what got generated before they did that
2822 will get printed if we're piping to a print program; we'd
2823 have to write to a file and then hand that to the print
2824 program to make it actually not print anything. */
2825 destroy_print_stream(print_args->stream);
2826 return CF_PRINT_WRITE_ERROR;
2829 if (!print_finale(print_args->stream)) {
2830 destroy_print_stream(print_args->stream);
2831 return CF_PRINT_WRITE_ERROR;
2834 if (!destroy_print_stream(print_args->stream))
2835 return CF_PRINT_WRITE_ERROR;
2841 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2842 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2848 /* Create the protocol tree, but don't fill in the column information. */
2849 epan_dissect_init(&edt, TRUE, TRUE);
2850 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2852 /* Write out the information in that tree. */
2853 proto_tree_write_pdml(&edt, fh);
2855 epan_dissect_cleanup(&edt);
2861 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2866 fh = ws_fopen(print_args->file, "w");
2868 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2870 write_pdml_preamble(fh);
2873 return CF_PRINT_WRITE_ERROR;
2876 /* Iterate through the list of packets, printing the packets we were
2878 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2879 "selected packets", TRUE,
2880 write_pdml_packet, fh);
2885 /* Completed successfully. */
2889 /* Well, the user decided to abort the printing. */
2893 /* Error while printing. */
2895 return CF_PRINT_WRITE_ERROR;
2898 write_pdml_finale(fh);
2901 return CF_PRINT_WRITE_ERROR;
2904 /* XXX - check for an error */
2911 write_psml_packet(capture_file *cf, frame_data *fdata,
2912 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2917 gboolean proto_tree_needed;
2919 /* Fill in the column information, only create the protocol tree
2920 if having custom columns. */
2921 proto_tree_needed = have_custom_cols(&cf->cinfo);
2922 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2923 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2924 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2926 /* Write out the information in that tree. */
2927 proto_tree_write_psml(&edt, fh);
2929 epan_dissect_cleanup(&edt);
2935 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2940 fh = ws_fopen(print_args->file, "w");
2942 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2944 write_psml_preamble(fh);
2947 return CF_PRINT_WRITE_ERROR;
2950 /* Iterate through the list of packets, printing the packets we were
2952 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2953 "selected packets", TRUE,
2954 write_psml_packet, fh);
2959 /* Completed successfully. */
2963 /* Well, the user decided to abort the printing. */
2967 /* Error while printing. */
2969 return CF_PRINT_WRITE_ERROR;
2972 write_psml_finale(fh);
2975 return CF_PRINT_WRITE_ERROR;
2978 /* XXX - check for an error */
2985 write_csv_packet(capture_file *cf, frame_data *fdata,
2986 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2991 gboolean proto_tree_needed;
2993 /* Fill in the column information, only create the protocol tree
2994 if having custom columns. */
2995 proto_tree_needed = have_custom_cols(&cf->cinfo);
2996 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2997 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2998 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3000 /* Write out the information in that tree. */
3001 proto_tree_write_csv(&edt, fh);
3003 epan_dissect_cleanup(&edt);
3009 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3014 fh = ws_fopen(print_args->file, "w");
3016 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3018 write_csv_preamble(fh);
3021 return CF_PRINT_WRITE_ERROR;
3024 /* Iterate through the list of packets, printing the packets we were
3026 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3027 "selected packets", TRUE,
3028 write_csv_packet, fh);
3033 /* Completed successfully. */
3037 /* Well, the user decided to abort the printing. */
3041 /* Error while printing. */
3043 return CF_PRINT_WRITE_ERROR;
3046 write_csv_finale(fh);
3049 return CF_PRINT_WRITE_ERROR;
3052 /* XXX - check for an error */
3059 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3060 union wtap_pseudo_header *pseudo_header _U_,
3061 const guint8 *pd, void *argsp)
3065 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3070 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3075 fh = ws_fopen(print_args->file, "w");
3078 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3080 write_carrays_preamble(fh);
3084 return CF_PRINT_WRITE_ERROR;
3087 /* Iterate through the list of packets, printing the packets we were
3089 ret = process_specified_packets(cf, &print_args->range,
3091 "selected packets", TRUE,
3092 write_carrays_packet, fh);
3095 /* Completed successfully. */
3098 /* Well, the user decided to abort the printing. */
3101 /* Error while printing. */
3103 return CF_PRINT_WRITE_ERROR;
3106 write_carrays_finale(fh);
3110 return CF_PRINT_WRITE_ERROR;
3117 #ifndef NEW_PACKET_LIST /* This function is not needed with the new packet list */
3119 /* Scan through the packet list and change all columns that use the
3120 "command-line-specified" time stamp format to use the current
3121 value of that format. */
3123 cf_change_time_formats(capture_file *cf)
3127 progdlg_t *progbar = NULL;
3132 GTimeVal start_time;
3133 gchar status_str[100];
3134 int progbar_nextstep;
3135 int progbar_quantum;
3136 gboolean sorted_by_frame_column;
3138 /* Adjust timestamp precision if auto is selected */
3139 cf_timestamp_auto_precision(cf);
3141 /* Are there any columns with time stamps in the "command-line-specified"
3144 XXX - we have to force the "column is writable" flag on, as it
3145 might be off from the last frame that was dissected. */
3146 col_set_writable(&cf->cinfo, TRUE);
3147 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3148 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3149 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3150 !check_col(&cf->cinfo, COL_REL_TIME) &&
3151 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3152 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3153 /* No, there aren't any columns in that format, so we have no work
3158 /* Freeze the packet list while we redo it, so we don't get any
3159 screen updates while it happens. */
3160 packet_list_freeze();
3162 /* Update the progress bar when it gets to this value. */
3163 progbar_nextstep = 0;
3164 /* When we reach the value that triggers a progress bar update,
3165 bump that value by this amount. */
3166 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3167 /* Count of packets at which we've looked. */
3169 /* Progress so far. */
3172 /* If the rows are currently sorted by the frame column then we know
3173 * the row number of each packet: it's the row number of the previously
3174 * displayed packet + 1.
3176 * Otherwise, if the display is sorted by a different column then we have
3177 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3178 * of changing the time display format O(N**2)).
3180 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3181 * the row number and walks that many elements down the clist to find
3182 * the appropriate element.)
3184 sorted_by_frame_column = FALSE;
3185 for (i = 0; i < cf->cinfo.num_cols; i++) {
3186 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3188 sorted_by_frame_column = (i == packet_list_get_sort_column());
3194 g_get_current_time(&start_time);
3196 /* Iterate through the list of packets, checking whether the packet
3197 is in a row of the summary list and, if so, whether there are
3198 any columns that show the time in the "command-line-specified"
3199 format and, if so, update that row. */
3200 for (fdata = cf->plist_start, row = -1; fdata != NULL; fdata = fdata->next) {
3201 /* Create the progress bar if necessary.
3202 We check on every iteration of the loop, so that it takes no
3203 longer than the standard time to create it (otherwise, for a
3204 large file, we might take considerably longer than that standard
3205 time in order to get to the next progress bar step). */
3206 if (progbar == NULL)
3207 progbar = delayed_create_progress_dlg("Changing", "time display",
3208 TRUE, &stop_flag, &start_time, progbar_val);
3210 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3211 when we update it, we have to run the GTK+ main loop to get it
3212 to repaint what's pending, and doing so may involve an "ioctl()"
3213 to see if there's any pending input from an X server, and doing
3214 that for every packet can be costly, especially on a big file. */
3215 if (count >= progbar_nextstep) {
3216 /* let's not divide by zero. I should never be started
3217 * with count == 0, so let's assert that
3219 g_assert(cf->count > 0);
3221 progbar_val = (gfloat) count / cf->count;
3223 if (progbar != NULL) {
3224 g_snprintf(status_str, sizeof(status_str),
3225 "%4u of %u packets", count, cf->count);
3226 update_progress_dlg(progbar, progbar_val, status_str);
3229 progbar_nextstep += progbar_quantum;
3233 /* Well, the user decided to abort the redisplay. Just stop.
3235 XXX - this leaves the time field in the old format in
3236 frames we haven't yet processed. So it goes; should we
3237 simply not offer them the option of stopping? */
3243 /* Find what row this packet is in. */
3244 if (!sorted_by_frame_column) {
3245 /* This function is O(N), so we try to avoid using it... */
3246 row = packet_list_find_row_from_data(fdata);
3248 /* ...which we do by maintaining a count of packets that are
3249 being displayed (i.e., that have passed the display filter),
3250 and using the current value of that count as the row number
3251 (which is why we can only do it when the display is sorted
3252 by the frame number). */
3253 if (fdata->flags.passed_dfilter)
3260 /* This packet is in the summary list, on row "row". */
3262 for (i = 0; i < cf->cinfo.num_cols; i++) {
3263 if (col_has_time_fmt(&cf->cinfo, i)) {
3264 /* This is one of the columns that shows the time in
3265 "command-line-specified" format; update it. */
3266 cf->cinfo.col_buf[i][0] = '\0';
3267 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3268 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3274 /* We're done redisplaying the packets; destroy the progress bar if it
3276 if (progbar != NULL)
3277 destroy_progress_dlg(progbar);
3279 /* Set the column widths of those columns that show the time in
3280 "command-line-specified" format. */
3281 for (i = 0; i < cf->cinfo.num_cols; i++) {
3282 if (col_has_time_fmt(&cf->cinfo, i)) {
3283 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3287 /* Unfreeze the packet list. */
3290 #endif /* NEW_PACKET_LIST */
3297 gboolean frame_matched;
3301 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3305 mdata.string = string;
3306 mdata.string_len = strlen(string);
3307 return find_packet(cf, match_protocol_tree, &mdata);
3311 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3313 match_data *mdata = criterion;
3316 /* Construct the protocol tree, including the displayed text */
3317 epan_dissect_init(&edt, TRUE, TRUE);
3318 /* We don't need the column information */
3319 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3321 /* Iterate through all the nodes, seeing if they have text that matches. */
3323 mdata->frame_matched = FALSE;
3324 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3325 epan_dissect_cleanup(&edt);
3326 return mdata->frame_matched;
3330 match_subtree_text(proto_node *node, gpointer data)
3332 match_data *mdata = (match_data*) data;
3333 const gchar *string = mdata->string;
3334 size_t string_len = mdata->string_len;
3335 capture_file *cf = mdata->cf;
3336 field_info *fi = PNODE_FINFO(node);
3337 gchar label_str[ITEM_LABEL_LENGTH];
3344 g_assert(fi && "dissection with an invisible proto tree?");
3346 if (mdata->frame_matched) {
3347 /* We already had a match; don't bother doing any more work. */
3351 /* Don't match invisible entries. */
3352 if (PROTO_ITEM_IS_HIDDEN(node))
3355 /* was a free format label produced? */
3357 label_ptr = fi->rep->representation;
3359 /* no, make a generic label */
3360 label_ptr = label_str;
3361 proto_item_fill_label(fi, label_str);
3364 /* Does that label match? */
3365 label_len = strlen(label_ptr);
3366 for (i = 0; i < label_len; i++) {
3367 c_char = label_ptr[i];
3369 c_char = toupper(c_char);
3370 if (c_char == string[c_match]) {
3372 if (c_match == string_len) {
3373 /* No need to look further; we have a match */
3374 mdata->frame_matched = TRUE;
3381 /* Recurse into the subtree, if it exists */
3382 if (node->first_child != NULL)
3383 proto_tree_children_foreach(node, match_subtree_text, mdata);
3387 cf_find_packet_summary_line(capture_file *cf, const char *string)
3391 mdata.string = string;
3392 mdata.string_len = strlen(string);
3393 return find_packet(cf, match_summary_line, &mdata);
3397 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3399 match_data *mdata = criterion;
3400 const gchar *string = mdata->string;
3401 size_t string_len = mdata->string_len;
3403 const char *info_column;
3404 size_t info_column_len;
3405 gboolean frame_matched = FALSE;
3411 /* Don't bother constructing the protocol tree */
3412 epan_dissect_init(&edt, FALSE, FALSE);
3413 /* Get the column information */
3414 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3416 /* Find the Info column */
3417 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3418 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3419 /* Found it. See if we match. */
3420 info_column = edt.pi.cinfo->col_data[colx];
3421 info_column_len = strlen(info_column);
3422 for (i = 0; i < info_column_len; i++) {
3423 c_char = info_column[i];
3425 c_char = toupper(c_char);
3426 if (c_char == string[c_match]) {
3428 if (c_match == string_len) {
3429 frame_matched = TRUE;
3438 epan_dissect_cleanup(&edt);
3439 return frame_matched;
3445 } cbs_t; /* "Counted byte string" */
3448 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3453 info.data_len = string_size;
3455 /* String or hex search? */
3457 /* String search - what type of string? */
3458 switch (cf->scs_type) {
3460 case SCS_ASCII_AND_UNICODE:
3461 return find_packet(cf, match_ascii_and_unicode, &info);
3464 return find_packet(cf, match_ascii, &info);
3467 return find_packet(cf, match_unicode, &info);
3470 g_assert_not_reached();
3474 return find_packet(cf, match_binary, &info);
3478 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3480 cbs_t *info = criterion;
3481 const guint8 *ascii_text = info->data;
3482 size_t textlen = info->data_len;
3483 gboolean frame_matched;
3489 frame_matched = FALSE;
3490 buf_len = fdata->pkt_len;
3491 for (i = 0; i < buf_len; i++) {
3494 c_char = toupper(c_char);
3496 if (c_char == ascii_text[c_match]) {
3498 if (c_match == textlen) {
3499 frame_matched = TRUE;
3500 cf->search_pos = i; /* Save the position of the last character
3501 for highlighting the field. */
3508 return frame_matched;
3512 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3514 cbs_t *info = criterion;
3515 const guint8 *ascii_text = info->data;
3516 size_t textlen = info->data_len;
3517 gboolean frame_matched;
3523 frame_matched = FALSE;
3524 buf_len = fdata->pkt_len;
3525 for (i = 0; i < buf_len; i++) {
3528 c_char = toupper(c_char);
3529 if (c_char == ascii_text[c_match]) {
3531 if (c_match == textlen) {
3532 frame_matched = TRUE;
3533 cf->search_pos = i; /* Save the position of the last character
3534 for highlighting the field. */
3540 return frame_matched;
3544 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3546 cbs_t *info = criterion;
3547 const guint8 *ascii_text = info->data;
3548 size_t textlen = info->data_len;
3549 gboolean frame_matched;
3555 frame_matched = FALSE;
3556 buf_len = fdata->pkt_len;
3557 for (i = 0; i < buf_len; i++) {
3560 c_char = toupper(c_char);
3561 if (c_char == ascii_text[c_match]) {
3564 if (c_match == textlen) {
3565 frame_matched = TRUE;
3566 cf->search_pos = i; /* Save the position of the last character
3567 for highlighting the field. */
3573 return frame_matched;
3577 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3579 cbs_t *info = criterion;
3580 const guint8 *binary_data = info->data;
3581 size_t datalen = info->data_len;
3582 gboolean frame_matched;
3587 frame_matched = FALSE;
3588 buf_len = fdata->pkt_len;
3589 for (i = 0; i < buf_len; i++) {
3590 if (cf->pd[i] == binary_data[c_match]) {
3592 if (c_match == datalen) {
3593 frame_matched = TRUE;
3594 cf->search_pos = i; /* Save the position of the last character
3595 for highlighting the field. */
3601 return frame_matched;
3605 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3607 return find_packet(cf, match_dfilter, sfcode);
3611 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3613 dfilter_t *sfcode = criterion;
3615 gboolean frame_matched;
3617 epan_dissect_init(&edt, TRUE, FALSE);
3618 epan_dissect_prime_dfilter(&edt, sfcode);
3619 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3620 frame_matched = dfilter_apply_edt(sfcode, &edt);
3621 epan_dissect_cleanup(&edt);
3622 return frame_matched;
3626 find_packet(capture_file *cf,
3627 gboolean (*match_function)(capture_file *, frame_data *, void *),
3630 frame_data *start_fd;
3632 frame_data *new_fd = NULL;
3633 progdlg_t *progbar = NULL;
3640 GTimeVal start_time;
3641 gchar status_str[100];
3642 int progbar_nextstep;
3643 int progbar_quantum;
3646 start_fd = cf->current_frame;
3647 if (start_fd != NULL) {
3648 /* Iterate through the list of packets, starting at the packet we've
3649 picked, calling a routine to run the filter on the packet, see if
3650 it matches, and stop if so. */
3654 /* Update the progress bar when it gets to this value. */
3655 progbar_nextstep = 0;
3656 /* When we reach the value that triggers a progress bar update,
3657 bump that value by this amount. */
3658 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3659 /* Progress so far. */
3663 g_get_current_time(&start_time);
3666 title = cf->sfilter?cf->sfilter:"";
3668 /* Create the progress bar if necessary.
3669 We check on every iteration of the loop, so that it takes no
3670 longer than the standard time to create it (otherwise, for a
3671 large file, we might take considerably longer than that standard
3672 time in order to get to the next progress bar step). */
3673 if (progbar == NULL)
3674 progbar = delayed_create_progress_dlg("Searching", title,
3675 FALSE, &stop_flag, &start_time, progbar_val);
3677 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3678 when we update it, we have to run the GTK+ main loop to get it
3679 to repaint what's pending, and doing so may involve an "ioctl()"
3680 to see if there's any pending input from an X server, and doing
3681 that for every packet can be costly, especially on a big file. */
3682 if (count >= progbar_nextstep) {
3683 /* let's not divide by zero. I should never be started
3684 * with count == 0, so let's assert that
3686 g_assert(cf->count > 0);
3688 progbar_val = (gfloat) count / cf->count;
3690 if (progbar != NULL) {
3691 g_snprintf(status_str, sizeof(status_str),
3692 "%4u of %u packets", count, cf->count);
3693 update_progress_dlg(progbar, progbar_val, status_str);
3696 progbar_nextstep += progbar_quantum;
3700 /* Well, the user decided to abort the search. Go back to the
3701 frame where we started. */
3706 /* Go past the current frame. */
3707 if (cf->sbackward) {
3708 /* Go on to the previous frame. */
3709 fdata = fdata->prev;
3710 if (fdata == NULL) {
3712 * XXX - other apps have a bit more of a detailed message
3713 * for this, and instead of offering "OK" and "Cancel",
3714 * they offer things such as "Continue" and "Cancel";
3715 * we need an API for popping up alert boxes with
3716 * {Verb} and "Cancel".
3719 if (prefs.gui_find_wrap)
3721 simple_status("Search reached the beginning. Continuing at end.");
3722 fdata = cf->plist_end; /* wrap around */
3726 simple_status("Search reached the beginning.");
3727 fdata = start_fd; /* stay on previous packet */
3731 /* Go on to the next frame. */
3732 fdata = fdata->next;
3733 if (fdata == NULL) {
3734 if (prefs.gui_find_wrap)
3736 simple_status("Search reached the end. Continuing at beginning.");
3737 fdata = cf->plist_start; /* wrap around */
3741 simple_status("Search reached the end.");
3742 fdata = start_fd; /* stay on previous packet */
3749 /* Is this packet in the display? */
3750 if (fdata->flags.passed_dfilter) {
3751 /* Yes. Load its data. */
3752 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3753 cf->pd, fdata->cap_len, &err, &err_info)) {
3754 /* Read error. Report the error, and go back to the frame
3755 where we started. */
3756 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3757 cf_read_error_message(err, err_info), cf->filename);
3762 /* Does it match the search criterion? */
3763 if ((*match_function)(cf, fdata, criterion)) {
3765 break; /* found it! */
3769 if (fdata == start_fd) {
3770 /* We're back to the frame we were on originally, and that frame
3771 doesn't match the search filter. The search failed. */
3776 /* We're done scanning the packets; destroy the progress bar if it
3778 if (progbar != NULL)
3779 destroy_progress_dlg(progbar);
3782 if (new_fd != NULL) {
3783 #ifdef NEW_PACKET_LIST
3784 /* Find and select */
3785 row = new_packet_list_find_row_from_data(fdata, TRUE);
3787 /* We found a frame. Find what row it's in. */
3788 row = packet_list_find_row_from_data(new_fd);
3789 #endif /* NEW_PACKET_LIST */
3791 /* We didn't find a row even though we know that a frame
3792 * exists that satifies the search criteria. This means that the
3793 * frame isn't being displayed currently so we can't select it. */
3794 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3795 "%sEnd of capture exceeded!%s\n\n"
3796 "The capture file is probably not fully loaded.",
3797 simple_dialog_primary_start(), simple_dialog_primary_end());
3801 #ifndef NEW_PACKET_LIST
3802 /* Select that row, make it the focus row, and make it visible. */
3803 packet_list_set_selected_row(row);
3804 #endif /* NEW_PACKET_LIST */
3805 return TRUE; /* success */
3807 return FALSE; /* failure */
3811 cf_goto_frame(capture_file *cf, guint fnumber)
3816 for (fdata = cf->plist_start; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3819 if (fdata == NULL) {
3820 /* we didn't find a packet with that packet number */
3821 simple_status("There is no packet number %u.", fnumber);
3822 return FALSE; /* we failed to go to that packet */
3824 if (!fdata->flags.passed_dfilter) {
3825 /* that packet currently isn't displayed */
3826 /* XXX - add it to the set of displayed packets? */
3827 simple_status("Packet number %u isn't displayed.", fnumber);
3828 return FALSE; /* we failed to go to that packet */
3831 #ifdef NEW_PACKET_LIST
3832 row = new_packet_list_find_row_from_data(fdata, TRUE);
3834 /* We found that packet, and it's currently being displayed.
3835 Find what row it's in. */
3836 row = packet_list_find_row_from_data(fdata);
3837 g_assert(row != -1);
3839 /* Select that row, make it the focus row, and make it visible. */
3840 packet_list_set_selected_row(row);
3841 #endif /* NEW_PACKET_LIST */
3842 return TRUE; /* we got to that packet */
3846 cf_goto_top_frame(capture_file *cf _U_)
3848 #ifdef NEW_PACKET_LIST
3849 /* Find and select */
3850 new_packet_list_select_first_row();
3854 frame_data *lowest_fdata = NULL;
3856 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
3857 if (fdata->flags.passed_dfilter) {
3858 lowest_fdata = fdata;
3863 if (lowest_fdata == NULL) {
3867 /* We found that packet, and it's currently being displayed.
3868 Find what row it's in. */
3869 row = packet_list_find_row_from_data(lowest_fdata);
3870 g_assert(row != -1);
3872 /* Select that row, make it the focus row, and make it visible. */
3873 packet_list_set_selected_row(row);
3874 #endif /* NEW_PACKET_LIST */
3875 return TRUE; /* we got to that packet */
3879 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
3881 #ifdef NEW_PACKET_LIST
3882 /* Find and select */
3883 new_packet_list_select_last_row();
3887 frame_data *highest_fdata = NULL;
3889 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
3890 if (fdata->flags.passed_dfilter) {
3891 highest_fdata = fdata;
3895 if (highest_fdata == NULL) {
3899 /* We found that packet, and it's currently being displayed.
3900 Find what row it's in. */
3901 row = packet_list_find_row_from_data(highest_fdata);
3902 g_assert(row != -1);
3904 /* Select that row, make it the focus row, and make it visible. */
3905 packet_list_set_selected_row(row);
3906 #endif /* NEW_PACKET_LIST */
3907 return TRUE; /* we got to that packet */
3911 * Go to frame specified by currently selected protocol tree item.
3914 cf_goto_framenum(capture_file *cf)
3916 header_field_info *hfinfo;
3919 if (cf->finfo_selected) {
3920 hfinfo = cf->finfo_selected->hfinfo;
3922 if (hfinfo->type == FT_FRAMENUM) {
3923 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3925 return cf_goto_frame(cf, framenum);
3932 /* Select the packet on a given row. */
3934 cf_select_packet(capture_file *cf, int row)
3940 /* Get the frame data struct pointer for this frame */
3941 #ifdef NEW_PACKET_LIST
3942 fdata = new_packet_list_get_row_data(row);
3944 fdata = (frame_data *)packet_list_get_row_data(row);
3947 if (fdata == NULL) {
3948 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3949 the first entry is added to it by "real_insert_row()", that row
3950 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3951 our version and the vanilla GTK+ version).
3953 This means that a "select-row" signal is emitted; this causes
3954 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3957 "cf_select_packet()" fetches, above, the data associated with the
3958 row that was selected; however, as "gtk_clist_append()", which
3959 called "real_insert_row()", hasn't yet returned, we haven't yet
3960 associated any data with that row, so we get back a null pointer.
3962 We can't assume that there's only one frame in the frame list,
3963 either, as we may be filtering the display.
3965 We therefore assume that, if "row" is 0, i.e. the first row
3966 is being selected, and "cf->first_displayed" equals
3967 "cf->last_displayed", i.e. there's only one frame being
3968 displayed, that frame is the frame we want.
3970 This means we have to set "cf->first_displayed" and
3971 "cf->last_displayed" before adding the row to the
3972 GtkCList; see the comment in "add_packet_to_packet_list()". */
3974 if (row == 0 && cf->first_displayed == cf->last_displayed)
3975 fdata = cf->first_displayed;
3978 /* If fdata _still_ isn't set simply give up. */
3979 if (fdata == NULL) {
3983 /* Get the data in that frame. */
3984 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
3985 cf->pd, fdata->cap_len, &err, &err_info)) {
3986 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3987 cf_read_error_message(err, err_info), cf->filename);
3991 /* Record that this frame is the current frame. */
3992 cf->current_frame = fdata;
3993 cf->current_row = row;
3995 /* Create the logical protocol tree. */
3996 if (cf->edt != NULL)
3997 epan_dissect_free(cf->edt);
3999 /* We don't need the columns here. */
4000 cf->edt = epan_dissect_new(TRUE, TRUE);
4002 tap_build_interesting(cf->edt);
4003 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4006 dfilter_macro_build_ftv_cache(cf->edt->tree);
4008 cf_callback_invoke(cf_cb_packet_selected, cf);
4011 /* Unselect the selected packet, if any. */
4013 cf_unselect_packet(capture_file *cf)
4015 /* Destroy the epan_dissect_t for the unselected packet. */
4016 if (cf->edt != NULL) {
4017 epan_dissect_free(cf->edt);
4021 /* No packet is selected. */
4022 cf->current_frame = NULL;
4023 cf->current_row = 0;
4025 cf_callback_invoke(cf_cb_packet_unselected, cf);
4027 /* No protocol tree means no selected field. */
4028 cf_unselect_field(cf);
4031 /* Unset the selected protocol tree field, if any. */
4033 cf_unselect_field(capture_file *cf)
4035 cf->finfo_selected = NULL;
4037 cf_callback_invoke(cf_cb_field_unselected, cf);
4041 * Mark a particular frame.
4044 cf_mark_frame(capture_file *cf, frame_data *frame)
4046 if (! frame->flags.marked) {
4047 frame->flags.marked = TRUE;
4048 if (cf->count > cf->marked_count)
4054 * Unmark a particular frame.
4057 cf_unmark_frame(capture_file *cf, frame_data *frame)
4059 if (frame->flags.marked) {
4060 frame->flags.marked = FALSE;
4061 if (cf->marked_count > 0)
4069 } save_callback_args_t;
4072 * Save a capture to a file, in a particular format, saving either
4073 * all packets, all currently-displayed packets, or all marked packets.
4075 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4076 * up a message box for the failure.
4079 save_packet(capture_file *cf _U_, frame_data *fdata,
4080 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4083 save_callback_args_t *args = argsp;
4084 struct wtap_pkthdr hdr;
4087 /* init the wtap header for saving */
4088 hdr.ts.secs = fdata->abs_ts.secs;
4089 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4090 hdr.caplen = fdata->cap_len;
4091 hdr.len = fdata->pkt_len;
4092 hdr.pkt_encap = fdata->lnk_t;
4094 /* and save the packet */
4095 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4096 cf_write_failure_alert_box(args->fname, err);
4103 * Can this capture file be saved in any format except by copying the raw data?
4106 cf_can_save_as(capture_file *cf)
4110 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4111 /* To save a file with Wiretap, Wiretap has to handle that format,
4112 and its code to handle that format must be able to write a file
4113 with this file's encapsulation type. */
4114 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4115 /* OK, we can write it out in this type. */
4120 /* No, we couldn't save it in any format. */
4125 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4127 gchar *from_filename;
4131 save_callback_args_t callback_args;
4133 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
4135 /* don't write over an existing file. */
4136 /* this should've been already checked by our caller, just to be sure... */
4137 if (file_exists(fname)) {
4138 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4139 "%sCapture file: \"%s\" already exists!%s\n\n"
4140 "Please choose a different filename.",
4141 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4145 packet_range_process_init(range);
4148 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4149 /* We're not filtering packets, and we're saving it in the format
4150 it's already in, so we can just move or copy the raw data. */
4152 if (cf->is_tempfile) {
4153 /* The file being saved is a temporary file from a live
4154 capture, so it doesn't need to stay around under that name;
4155 first, try renaming the capture buffer file to the new name. */
4157 if (ws_rename(cf->filename, fname) == 0) {
4158 /* That succeeded - there's no need to copy the source file. */
4159 from_filename = NULL;
4162 if (errno == EXDEV) {
4163 /* They're on different file systems, so we have to copy the
4166 from_filename = cf->filename;
4168 /* The rename failed, but not because they're on different
4169 file systems - put up an error message. (Or should we
4170 just punt and try to copy? The only reason why I'd
4171 expect the rename to fail and the copy to succeed would
4172 be if we didn't have permission to remove the file from
4173 the temporary directory, and that might be fixable - but
4174 is it worth requiring the user to go off and fix it?) */
4175 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4176 file_rename_error_message(errno), fname);
4182 from_filename = cf->filename;
4185 /* It's a permanent file, so we should copy it, and not remove the
4188 from_filename = cf->filename;
4192 /* Copy the file, if we haven't moved it. */
4193 if (!copy_file_binary_mode(from_filename, fname))
4197 /* Either we're filtering packets, or we're saving in a different
4198 format; we can't do that by copying or moving the capture file,
4199 we have to do it by writing the packets out in Wiretap. */
4200 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4203 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4207 /* XXX - we let the user save a subset of the packets.
4209 If we do that, should we make that file the current file? If so,
4210 it means we can no longer get at the other packets. What does
4213 /* Iterate through the list of packets, processing the packets we were
4216 XXX - we've already called "packet_range_process_init(range)", but
4217 "process_specified_packets()" will do it again. Fortunately,
4218 that's harmless in this case, as we haven't done anything to
4219 "range" since we initialized it. */
4220 callback_args.pdh = pdh;
4221 callback_args.fname = fname;
4222 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4223 TRUE, save_packet, &callback_args)) {
4226 /* Completed successfully. */
4230 /* The user decided to abort the saving.
4231 XXX - remove the output file? */
4235 /* Error while saving. */
4236 wtap_dump_close(pdh, &err);
4240 if (!wtap_dump_close(pdh, &err)) {
4241 cf_close_failure_alert_box(fname, err);
4246 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
4248 if (packet_range_process_all(range)) {
4249 /* We saved the entire capture, not just some packets from it.
4250 Open and read the file we saved it to.
4252 XXX - this is somewhat of a waste; we already have the
4253 packets, all this gets us is updated file type information
4254 (which we could just stuff into "cf"), and having the new
4255 file be the one we have opened and from which we're reading
4256 the data, and it means we have to spend time opening and
4257 reading the file, which could be a significant amount of
4258 time if the file is large. */
4259 cf->user_saved = TRUE;
4261 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4262 /* XXX - report errors if this fails?
4263 What should we return if it fails or is aborted? */
4264 switch (cf_read(cf)) {
4268 /* Just because we got an error, that doesn't mean we were unable
4269 to read any of the file; we handle what we could get from the
4273 case CF_READ_ABORTED:
4274 /* The user bailed out of re-reading the capture file; the
4275 capture file has been closed - just return (without
4276 changing any menu settings; "cf_close()" set them
4277 correctly for the "no capture file open" state). */
4280 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4286 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4291 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4292 gboolean for_writing, int file_type)
4295 /* Wiretap error. */
4298 case WTAP_ERR_NOT_REGULAR_FILE:
4299 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4300 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4304 case WTAP_ERR_RANDOM_OPEN_PIPE:
4305 /* Seen only when opening a capture file for reading. */
4306 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4307 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4311 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4312 /* Seen only when opening a capture file for reading. */
4313 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4314 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4318 case WTAP_ERR_UNSUPPORTED:
4319 /* Seen only when opening a capture file for reading. */
4320 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4321 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4323 filename, err_info);
4327 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4328 /* Seen only when opening a capture file for writing. */
4329 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4330 "The file \"%s\" is a pipe, and %s capture files can't be "
4331 "written to a pipe.",
4332 filename, wtap_file_type_string(file_type));
4335 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4336 /* Seen only when opening a capture file for writing. */
4337 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4338 "Wireshark doesn't support writing capture files in that format.");
4341 case WTAP_ERR_UNSUPPORTED_ENCAP:
4343 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4344 "Wireshark can't save this capture in that format.");
4346 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4347 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4349 filename, err_info);
4354 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4356 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4357 "Wireshark can't save this capture in that format.");
4359 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4360 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4365 case WTAP_ERR_BAD_RECORD:
4366 /* Seen only when opening a capture file for reading. */
4367 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4368 "The file \"%s\" appears to be damaged or corrupt.\n"
4370 filename, err_info);
4374 case WTAP_ERR_CANT_OPEN:
4376 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4377 "The file \"%s\" could not be created for some unknown reason.",
4380 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4381 "The file \"%s\" could not be opened for some unknown reason.",
4386 case WTAP_ERR_SHORT_READ:
4387 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4388 "The file \"%s\" appears to have been cut short"
4389 " in the middle of a packet or other data.",
4393 case WTAP_ERR_SHORT_WRITE:
4394 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4395 "A full header couldn't be written to the file \"%s\".",
4399 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4400 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4401 "Gzip compression not supported by this file type.");
4405 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4406 "The file \"%s\" could not be %s: %s.",
4408 for_writing ? "created" : "opened",
4409 wtap_strerror(err));
4414 open_failure_alert_box(filename, err, for_writing);
4419 file_rename_error_message(int err)
4422 static char errmsg_errno[1024+1];
4427 errmsg = "The path to the file \"%s\" doesn't exist.";
4431 errmsg = "You don't have permission to move the capture file to \"%s\".";
4435 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4436 "The file \"%%s\" could not be moved: %s.",
4437 wtap_strerror(err));
4438 errmsg = errmsg_errno;
4445 cf_read_error_message(int err, gchar *err_info)
4447 static char errmsg_errno[1024+1];
4451 case WTAP_ERR_UNSUPPORTED_ENCAP:
4452 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4453 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4458 case WTAP_ERR_BAD_RECORD:
4459 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4460 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4461 wtap_strerror(err), err_info);
4466 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4467 "An error occurred while reading from the file \"%%s\": %s.",
4468 wtap_strerror(err));
4471 return errmsg_errno;
4475 cf_write_failure_alert_box(const char *filename, int err)
4478 /* Wiretap error. */
4479 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4480 "An error occurred while writing to the file \"%s\": %s.",
4481 filename, wtap_strerror(err));
4484 write_failure_alert_box(filename, err);
4488 /* Check for write errors - if the file is being written to an NFS server,
4489 a write error may not show up until the file is closed, as NFS clients
4490 might not send writes to the server until the "write()" call finishes,
4491 so that the write may fail on the server but the "write()" may succeed. */
4493 cf_close_failure_alert_box(const char *filename, int err)
4496 /* Wiretap error. */
4499 case WTAP_ERR_CANT_CLOSE:
4500 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4501 "The file \"%s\" couldn't be closed for some unknown reason.",
4505 case WTAP_ERR_SHORT_WRITE:
4506 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4507 "Not all the packets could be written to the file \"%s\".",
4512 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4513 "An error occurred while closing the file \"%s\": %s.",
4514 filename, wtap_strerror(err));
4519 We assume that a close error from the OS is really a write error. */
4520 write_failure_alert_box(filename, err);
4524 /* Reload the current capture file. */
4526 cf_reload(capture_file *cf) {
4528 gboolean is_tempfile;
4531 /* If the file could be opened, "cf_open()" calls "cf_close()"
4532 to get rid of state for the old capture file before filling in state
4533 for the new capture file. "cf_close()" will remove the file if
4534 it's a temporary file; we don't want that to happen (for one thing,
4535 it'd prevent subsequent reopens from working). Remember whether it's
4536 a temporary file, mark it as not being a temporary file, and then
4537 reopen it as the type of file it was.
4539 Also, "cf_close()" will free "cf->filename", so we must make
4540 a copy of it first. */
4541 filename = g_strdup(cf->filename);
4542 is_tempfile = cf->is_tempfile;
4543 cf->is_tempfile = FALSE;
4544 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4545 switch (cf_read(cf)) {
4549 /* Just because we got an error, that doesn't mean we were unable
4550 to read any of the file; we handle what we could get from the
4554 case CF_READ_ABORTED:
4555 /* The user bailed out of re-reading the capture file; the
4556 capture file has been closed - just free the capture file name
4557 string and return (without changing the last containing
4563 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4564 Instead, the file was left open, so we should restore "cf->is_tempfile"
4567 XXX - change the menu? Presumably "cf_open()" will do that;
4568 make sure it does! */
4569 cf->is_tempfile = is_tempfile;
4571 /* "cf_open()" made a copy of the file name we handed it, so
4572 we should free up our copy. */