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 if (cf->rfcode != NULL) {
406 dfilter_free(cf->rfcode);
409 cf->plist_start = NULL;
410 cf->plist_end = NULL;
411 cf_unselect_packet(cf); /* nothing to select */
412 cf->first_displayed = NULL;
413 cf->last_displayed = NULL;
415 /* No frame selected, no field in that frame selected. */
416 cf->current_frame = NULL;
418 cf->finfo_selected = NULL;
420 /* Clear the packet list. */
421 #ifdef NEW_PACKET_LIST
422 new_packet_list_freeze();
423 new_packet_list_clear();
424 new_packet_list_thaw();
426 packet_list_freeze();
433 nstime_set_zero(&cf->elapsed_time);
435 reset_tap_listeners();
437 /* We have no file open. */
438 cf->state = FILE_CLOSED;
440 fileset_file_closed();
443 /* Reset everything to a pristine state */
445 cf_close(capture_file *cf)
447 /* do GUI things even if file is already closed,
448 * e.g. to cleanup things if a capture couldn't be started */
449 cf_callback_invoke(cf_cb_file_closing, cf);
451 /* close things, if not already closed before */
452 if(cf->state != FILE_CLOSED) {
453 color_filters_cleanup();
455 cleanup_dissection();
458 cf_callback_invoke(cf_cb_file_closed, cf);
461 /* an out of memory exception occured, wait for a user button press to exit */
462 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
467 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
471 progbar_val = (gfloat) file_pos / (gfloat) size;
472 if (progbar_val > 1.0) {
473 /* The file probably grew while we were reading it.
474 Update file size, and try again. */
475 size = wtap_file_size(cf->wth, NULL);
477 progbar_val = (gfloat) file_pos / (gfloat) size;
478 /* If it's still > 1, either "wtap_file_size()" failed (in which
479 case there's not much we can do about it), or the file
480 *shrank* (in which case there's not much we can do about
481 it); just clip the progress value at 1.0. */
482 if (progbar_val > 1.0f)
489 cf_read(capture_file *cf)
493 const gchar *name_ptr;
495 char errmsg_errno[1024+1];
497 progdlg_t *volatile progbar = NULL;
499 volatile gint64 size;
500 volatile float progbar_val;
502 gchar status_str[100];
503 volatile gint64 progbar_nextstep;
504 volatile gint64 progbar_quantum;
506 gboolean filtering_tap_listeners;
508 volatile int count = 0;
510 volatile int displayed_once = 0;
514 /* Compile the current display filter.
515 * We assume this will not fail since cf->dfilter is only set in
516 * cf_filter IFF the filter was valid.
518 compiled = dfilter_compile(cf->dfilter, &dfcode);
519 g_assert(!cf->dfilter || (compiled && dfcode));
521 /* Do we have any tap listeners with filters? */
522 filtering_tap_listeners = have_filtering_tap_listeners();
524 /* Get the union of the flags for all tap listeners. */
525 tap_flags = union_of_tap_listener_flags();
527 reset_tap_listeners();
529 cf_callback_invoke(cf_cb_file_read_start, cf);
531 name_ptr = get_basename(cf->filename);
533 /* Find the size of the file. */
534 size = wtap_file_size(cf->wth, NULL);
536 /* Update the progress bar when it gets to this value. */
537 progbar_nextstep = 0;
538 /* When we reach the value that triggers a progress bar update,
539 bump that value by this amount. */
541 progbar_quantum = size/N_PROGBAR_UPDATES;
542 if (progbar_quantum < MIN_QUANTUM)
543 progbar_quantum = MIN_QUANTUM;
546 /* Progress so far. */
549 #ifdef NEW_PACKET_LIST
550 new_packet_list_freeze();
552 packet_list_freeze();
556 g_get_current_time(&start_time);
558 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
561 /* Create the progress bar if necessary.
562 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
564 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
565 progbar_val = calc_progbar_val( cf, size, data_offset);
566 progbar = delayed_create_progress_dlg("Loading", name_ptr,
567 TRUE, &stop_flag, &start_time, progbar_val);
570 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
571 when we update it, we have to run the GTK+ main loop to get it
572 to repaint what's pending, and doing so may involve an "ioctl()"
573 to see if there's any pending input from an X server, and doing
574 that for every packet can be costly, especially on a big file. */
575 if (data_offset >= progbar_nextstep) {
576 if (progbar != NULL) {
577 progbar_val = calc_progbar_val( cf, size, data_offset);
578 /* update the packet lists content on the first run or frequently on very large files */
579 /* (on smaller files the display update takes longer than reading the file) */
581 if (progbar_quantum > 500000 || displayed_once == 0) {
582 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
584 #ifdef NEW_PACKET_LIST
585 new_packet_list_thaw();
586 if (auto_scroll_live)
587 new_packet_list_moveto_end();
588 new_packet_list_freeze();
591 if (auto_scroll_live)
592 packet_list_moveto_end();
593 packet_list_freeze();
594 #endif /* NEW_PACKET_LIST */
597 #endif /* HAVE_LIBPCAP */
598 g_snprintf(status_str, sizeof(status_str),
599 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
600 data_offset / 1024, size / 1024);
601 update_progress_dlg(progbar, progbar_val, status_str);
603 progbar_nextstep += progbar_quantum;
608 /* Well, the user decided to abort the read. He/She will be warned and
609 it might be enough for him/her to work with the already loaded
611 This is especially true for very large capture files, where you don't
612 want to wait loading the whole file (which may last minutes or even
613 hours even on fast machines) just to see that it was the wrong file. */
617 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
619 CATCH(OutOfMemoryError) {
622 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
623 "%sOut Of Memory!%s\n"
625 "Sorry, but Wireshark has to terminate now!\n"
627 "Some infos / workarounds can be found at:\n"
628 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
629 simple_dialog_primary_start(), simple_dialog_primary_end());
630 /* we have to terminate, as we cannot recover from the memory error */
631 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
633 main_window_update();
634 /* XXX - how to avoid a busy wait? */
642 /* Cleanup and release all dfilter resources */
644 dfilter_free(dfcode);
647 /* We're done reading the file; destroy the progress bar if it was created. */
649 destroy_progress_dlg(progbar);
651 /* We're done reading sequentially through the file. */
652 cf->state = FILE_READ_DONE;
654 /* Close the sequential I/O side, to free up memory it requires. */
655 wtap_sequential_close(cf->wth);
657 /* Allow the protocol dissectors to free up memory that they
658 * don't need after the sequential run-through of the packets. */
659 postseq_cleanup_all_protocols();
661 /* compute the time it took to load the file */
662 compute_elapsed(&start_time);
664 /* Set the file encapsulation type now; we don't know what it is until
665 we've looked at all the packets, as we don't know until then whether
666 there's more than one type (and thus whether it's
667 WTAP_ENCAP_PER_PACKET). */
668 cf->lnk_t = wtap_file_encap(cf->wth);
670 cf->current_frame = cf->first_displayed;
673 #ifdef NEW_PACKET_LIST
674 new_packet_list_thaw();
679 cf_callback_invoke(cf_cb_file_read_finished, cf);
681 /* If we have any displayed packets to select, select the first of those
682 packets by making the first row the selected row. */
683 if (cf->first_displayed != NULL){
684 #ifdef NEW_PACKET_LIST
685 new_packet_list_select_first_row();
687 packet_list_select_row(0);
688 #endif /* NEW_PACKET_LIST */
692 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
693 "%sFile loading was cancelled!%s\n"
695 "The remaining packets in the file were discarded.\n"
697 "As a lot of packets from the original file will be missing,\n"
698 "remember to be careful when saving the current content to a file.\n",
699 simple_dialog_primary_start(), simple_dialog_primary_end());
700 return CF_READ_ERROR;
704 /* Put up a message box noting that the read failed somewhere along
705 the line. Don't throw out the stuff we managed to read, though,
709 case WTAP_ERR_UNSUPPORTED_ENCAP:
710 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
711 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
714 errmsg = errmsg_errno;
717 case WTAP_ERR_CANT_READ:
718 errmsg = "An attempt to read from the capture file failed for"
719 " some unknown reason.";
722 case WTAP_ERR_SHORT_READ:
723 errmsg = "The capture file appears to have been cut short"
724 " in the middle of a packet.";
727 case WTAP_ERR_BAD_RECORD:
728 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
729 "The capture file appears to be damaged or corrupt.\n(%s)",
732 errmsg = errmsg_errno;
736 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
737 "An error occurred while reading the"
738 " capture file: %s.", wtap_strerror(err));
739 errmsg = errmsg_errno;
742 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
743 return CF_READ_ERROR;
750 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
752 cf_status_t cf_status;
754 cf_status = cf_open(cf, fname, is_tempfile, err);
759 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
761 gint64 data_offset = 0;
763 volatile int newly_displayed_packets = 0;
765 gboolean filtering_tap_listeners;
767 volatile gboolean visible = FALSE;
770 /* Compile the current display filter.
771 * We assume this will not fail since cf->dfilter is only set in
772 * cf_filter IFF the filter was valid.
774 compiled = dfilter_compile(cf->dfilter, &dfcode);
775 g_assert(!cf->dfilter || (compiled && dfcode));
777 /* Do we have any tap listeners with filters? */
778 filtering_tap_listeners = have_filtering_tap_listeners();
780 /* Get the union of the flags for all tap listeners. */
781 tap_flags = union_of_tap_listener_flags();
785 #ifdef NEW_PACKET_LIST
786 new_packet_list_check_end();
787 new_packet_list_freeze();
789 packet_list_check_end();
790 packet_list_freeze();
793 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
795 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
796 if (cf->state == FILE_READ_ABORTED) {
797 /* Well, the user decided to exit Wireshark. Break out of the
798 loop, and let the code below (which is called even if there
799 aren't any packets left to read) exit. */
803 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
804 data_offset) != -1) {
806 newly_displayed_packets++;
811 CATCH(OutOfMemoryError) {
814 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
815 "%sOut Of Memory!%s\n"
817 "Sorry, but Wireshark has to terminate now!\n"
819 "The capture file is not lost, it can be found at:\n"
822 "Some infos / workarounds can be found at:\n"
823 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
824 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
825 /* we have to terminate, as we cannot recover from the memory error */
826 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
828 main_window_update();
829 /* XXX - how to avoid a busy wait? */
832 #ifdef NEW_PACKET_LIST
833 new_packet_list_thaw();
837 return CF_READ_ABORTED;
843 /* Cleanup and release all dfilter resources */
845 dfilter_free(dfcode);
848 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
849 cf->count, cf->state, *err);*/
851 #ifdef NEW_PACKET_LIST
852 new_packet_list_thaw();
854 /* XXX - this causes "flickering" of the list */
858 /* moving to the end of the packet list - if the user requested so and
859 we have some new packets. */
860 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
861 #ifdef NEW_PACKET_LIST
863 new_packet_list_moveto_end();
865 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
866 packet_list_thaw() is done, see bugzilla 1188 */
867 /* XXX - this cheats and looks inside the packet list to find the final
869 packet_list_moveto_end();
870 #endif /* NEW_PACKET_LIST */
872 if (cf->state == FILE_READ_ABORTED) {
873 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
874 so that our caller can kill off the capture child process;
875 this will cause an EOF on the pipe from the child, so
876 "cf_finish_tail()" will be called, and it will clean up
878 return CF_READ_ABORTED;
879 } else if (*err != 0) {
880 /* We got an error reading the capture file.
881 XXX - pop up a dialog box instead? */
882 g_warning("Error \"%s\" while reading: \"%s\"\n",
883 wtap_strerror(*err), cf->filename);
885 return CF_READ_ERROR;
891 cf_finish_tail(capture_file *cf, int *err)
896 gboolean filtering_tap_listeners;
900 /* Compile the current display filter.
901 * We assume this will not fail since cf->dfilter is only set in
902 * cf_filter IFF the filter was valid.
904 compiled = dfilter_compile(cf->dfilter, &dfcode);
905 g_assert(!cf->dfilter || (compiled && dfcode));
907 /* Do we have any tap listeners with filters? */
908 filtering_tap_listeners = have_filtering_tap_listeners();
910 /* Get the union of the flags for all tap listeners. */
911 tap_flags = union_of_tap_listener_flags();
913 if(cf->wth == NULL) {
915 return CF_READ_ERROR;
918 #ifdef NEW_PACKET_LIST
919 new_packet_list_check_end();
920 new_packet_list_freeze();
922 packet_list_check_end();
923 packet_list_freeze();
926 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
927 if (cf->state == FILE_READ_ABORTED) {
928 /* Well, the user decided to abort the read. Break out of the
929 loop, and let the code below (which is called even if there
930 aren't any packets left to read) exit. */
933 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
936 /* Cleanup and release all dfilter resources */
938 dfilter_free(dfcode);
941 #ifdef NEW_PACKET_LIST
942 new_packet_list_thaw();
947 if (cf->state == FILE_READ_ABORTED) {
948 /* Well, the user decided to abort the read. We're only called
949 when the child capture process closes the pipe to us (meaning
950 it's probably exited), so we can just close the capture
951 file; we return CF_READ_ABORTED so our caller can do whatever
952 is appropriate when that happens. */
954 return CF_READ_ABORTED;
957 if (auto_scroll_live && cf->plist_end != NULL)
958 #ifdef NEW_PACKET_LIST
959 new_packet_list_moveto_end();
961 /* XXX - this cheats and looks inside the packet list to find the final
963 packet_list_moveto_end();
966 /* We're done reading sequentially through the file. */
967 cf->state = FILE_READ_DONE;
969 /* We're done reading sequentially through the file; close the
970 sequential I/O side, to free up memory it requires. */
971 wtap_sequential_close(cf->wth);
973 /* Allow the protocol dissectors to free up memory that they
974 * don't need after the sequential run-through of the packets. */
975 postseq_cleanup_all_protocols();
977 /* Set the file encapsulation type now; we don't know what it is until
978 we've looked at all the packets, as we don't know until then whether
979 there's more than one type (and thus whether it's
980 WTAP_ENCAP_PER_PACKET). */
981 cf->lnk_t = wtap_file_encap(cf->wth);
984 /* We got an error reading the capture file.
985 XXX - pop up a dialog box? */
986 return CF_READ_ERROR;
991 #endif /* HAVE_LIBPCAP */
994 cf_get_display_name(capture_file *cf)
996 const gchar *displayname;
998 /* Return a name to use in displays */
999 if (!cf->is_tempfile) {
1000 /* Get the last component of the file name, and use that. */
1002 displayname = get_basename(cf->filename);
1004 displayname="(No file)";
1007 /* The file we read is a temporary file from a live capture;
1008 we don't mention its name. */
1009 displayname = "(Untitled)";
1014 /* XXX - use a macro instead? */
1016 cf_get_packet_count(capture_file *cf)
1021 /* XXX - use a macro instead? */
1023 cf_set_packet_count(capture_file *cf, int packet_count)
1025 cf->count = packet_count;
1028 /* XXX - use a macro instead? */
1030 cf_is_tempfile(capture_file *cf)
1032 return cf->is_tempfile;
1035 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1037 cf->is_tempfile = is_tempfile;
1041 /* XXX - use a macro instead? */
1042 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1044 cf->drops_known = drops_known;
1047 /* XXX - use a macro instead? */
1048 void cf_set_drops(capture_file *cf, guint32 drops)
1053 /* XXX - use a macro instead? */
1054 gboolean cf_get_drops_known(capture_file *cf)
1056 return cf->drops_known;
1059 /* XXX - use a macro instead? */
1060 guint32 cf_get_drops(capture_file *cf)
1065 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1067 cf->rfcode = rfcode;
1070 #ifdef NEW_PACKET_LIST
1072 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1073 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1075 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1077 gboolean add_to_packet_list)
1079 gboolean create_proto_tree = FALSE;
1084 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1086 /* If we don't have the time stamp of the first packet in the
1087 capture, it's because this is the first packet. Save the time
1088 stamp of this packet as the time stamp of the first packet. */
1089 if (nstime_is_unset(&first_ts)) {
1090 first_ts = fdata->abs_ts;
1093 /* if this frames is marked as a reference time frame, reset
1094 firstsec and firstusec to this frame */
1095 if(fdata->flags.ref_time){
1096 first_ts = fdata->abs_ts;
1099 /* If we don't have the time stamp of the previous displayed packet,
1100 it's because this is the first displayed packet. Save the time
1101 stamp of this packet as the time stamp of the previous displayed
1103 if (nstime_is_unset(&prev_dis_ts)) {
1104 prev_dis_ts = fdata->abs_ts;
1107 /* If we don't have the time stamp of the previous captured packet,
1108 it's because this is the first packet. Save the time
1109 stamp of this packet as the time stamp of the previous captured
1111 if (nstime_is_unset(&prev_cap_ts)) {
1112 prev_cap_ts = fdata->abs_ts;
1115 /* Get the time elapsed between the first packet and this packet. */
1116 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1118 /* If it's greater than the current elapsed time, set the elapsed time
1119 to it (we check for "greater than" so as not to be confused by
1120 time moving backwards). */
1121 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1122 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1123 cf->elapsed_time = fdata->rel_ts;
1126 /* Get the time elapsed between the previous displayed packet and
1128 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1130 /* Get the time elapsed between the previous captured packet and
1132 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &prev_cap_ts);
1133 prev_cap_ts = fdata->abs_ts;
1136 + we have a display filter and are re-applying it;
1137 + we have tap listeners with filters;
1138 + we have tap listeners that require a protocol tree;
1140 allocate a protocol tree root node, so that we'll construct
1141 a protocol tree against which a filter expression can be
1143 if ((dfcode != NULL && refilter) ||
1144 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1145 create_proto_tree = TRUE;
1147 /* Dissect the frame. */
1148 epan_dissect_init(&edt, create_proto_tree, FALSE);
1150 if (dfcode != NULL && refilter) {
1151 epan_dissect_prime_dfilter(&edt, dfcode);
1154 tap_queue_init(&edt);
1155 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1156 tap_push_tapped_queue(&edt);
1158 /* If we have a display filter, apply it if we're refiltering, otherwise
1159 leave the "passed_dfilter" flag alone.
1161 If we don't have a display filter, set "passed_dfilter" to 1. */
1162 if (dfcode != NULL) {
1164 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1167 fdata->flags.passed_dfilter = 1;
1169 if (add_to_packet_list) {
1170 /* We fill the needed columns from new_packet_list */
1171 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1174 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1176 /* This frame either passed the display filter list or is marked as
1177 a time reference frame. All time reference frames are displayed
1178 even if they dont pass the display filter */
1179 if(fdata->flags.ref_time){
1180 /* if this was a TIME REF frame we should reset the cul bytes field */
1181 cum_bytes = fdata->pkt_len;
1182 fdata->cum_bytes = cum_bytes;
1184 /* increase cum_bytes with this packets length */
1185 cum_bytes += fdata->pkt_len;
1186 fdata->cum_bytes = cum_bytes;
1189 /* Set the time of the previous displayed frame to the time of this
1191 prev_dis_ts = fdata->abs_ts;
1193 /* If we haven't yet seen the first frame, this is it.
1195 XXX - we must do this before we add the row to the display,
1196 as, if the display's GtkCList's selection mode is
1197 GTK_SELECTION_BROWSE, when the first entry is added to it,
1198 "cf_select_packet()" will be called, and it will fetch the row
1199 data for the 0th row, and will get a null pointer rather than
1200 "fdata", as "gtk_clist_append()" won't yet have returned and
1201 thus "gtk_clist_set_row_data()" won't yet have been called.
1203 We thus need to leave behind bread crumbs so that
1204 "cf_select_packet()" can find this frame. See the comment
1205 in "cf_select_packet()". */
1206 if (cf->first_displayed == NULL)
1207 cf->first_displayed = fdata;
1209 /* This is the last frame we've seen so far. */
1210 cf->last_displayed = fdata;
1212 cf->displayed_count++;
1215 epan_dissect_cleanup(&edt);
1222 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1223 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1225 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1227 gboolean add_to_packet_list _U_)
1229 gboolean create_proto_tree = FALSE;
1236 /* just add some value here until we know if it is being displayed or not */
1237 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1239 /* If we don't have the time stamp of the first packet in the
1240 capture, it's because this is the first packet. Save the time
1241 stamp of this packet as the time stamp of the first packet. */
1242 if (nstime_is_unset(&first_ts)) {
1243 first_ts = fdata->abs_ts;
1245 /* if this frames is marked as a reference time frame, reset
1246 firstsec and firstusec to this frame */
1247 if(fdata->flags.ref_time){
1248 first_ts = fdata->abs_ts;
1251 /* If we don't have the time stamp of the previous displayed packet,
1252 it's because this is the first displayed packet. Save the time
1253 stamp of this packet as the time stamp of the previous displayed
1255 if (nstime_is_unset(&prev_dis_ts)) {
1256 prev_dis_ts = fdata->abs_ts;
1259 /* Get the time elapsed between the first packet and this packet. */
1260 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1262 /* If it's greater than the current elapsed time, set the elapsed time
1263 to it (we check for "greater than" so as not to be confused by
1264 time moving backwards). */
1265 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1266 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1267 cf->elapsed_time = fdata->rel_ts;
1270 /* Get the time elapsed between the previous displayed packet and
1272 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1276 we have a display filter and are re-applying it;
1278 we have a list of color filters;
1280 we have tap listeners with filters;
1282 we have tap listeners that require a protocol tree;
1284 we have custom columns;
1286 allocate a protocol tree root node, so that we'll construct
1287 a protocol tree against which a filter expression can be
1289 if ((dfcode != NULL && refilter) ||
1290 color_filters_used() ||
1291 have_custom_cols(cinfo) ||
1292 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1293 create_proto_tree = TRUE;
1295 /* Dissect the frame. */
1296 epan_dissect_init(&edt, create_proto_tree, FALSE);
1298 if (dfcode != NULL && refilter) {
1299 epan_dissect_prime_dfilter(&edt, dfcode);
1302 /* prepare color filters */
1303 color_filters_prime_edt(&edt);
1304 col_custom_prime_edt(&edt, cinfo);
1306 tap_queue_init(&edt);
1307 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1308 tap_push_tapped_queue(&edt);
1310 /* If we have a display filter, apply it if we're refiltering, otherwise
1311 leave the "passed_dfilter" flag alone.
1313 If we don't have a display filter, set "passed_dfilter" to 1. */
1314 if (dfcode != NULL) {
1316 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1319 fdata->flags.passed_dfilter = 1;
1321 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1323 /* This frame either passed the display filter list or is marked as
1324 a time reference frame. All time reference frames are displayed
1325 even if they dont pass the display filter */
1326 if(fdata->flags.ref_time){
1327 /* if this was a TIME REF frame we should reset the cul bytes field */
1328 cum_bytes = fdata->pkt_len;
1329 fdata->cum_bytes = cum_bytes;
1331 /* increase cum_bytes with this packets length */
1332 cum_bytes += fdata->pkt_len;
1335 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1337 /* If we haven't yet seen the first frame, this is it.
1339 XXX - we must do this before we add the row to the display,
1340 as, if the display's GtkCList's selection mode is
1341 GTK_SELECTION_BROWSE, when the first entry is added to it,
1342 "cf_select_packet()" will be called, and it will fetch the row
1343 data for the 0th row, and will get a null pointer rather than
1344 "fdata", as "gtk_clist_append()" won't yet have returned and
1345 thus "gtk_clist_set_row_data()" won't yet have been called.
1347 We thus need to leave behind bread crumbs so that
1348 "cf_select_packet()" can find this frame. See the comment
1349 in "cf_select_packet()". */
1350 if (cf->first_displayed == NULL)
1351 cf->first_displayed = fdata;
1353 /* This is the last frame we've seen so far. */
1354 cf->last_displayed = fdata;
1356 row = packet_list_append(cinfo->col_data, fdata);
1358 /* colorize packet: first apply color filters
1359 * then if packet is marked, use preferences to overwrite color
1360 * we do both to make sure that when a packet gets un-marked, the
1361 * color will be correctly set (fixes bug 2038)
1363 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1364 if (fdata->flags.marked) {
1365 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1368 /* Set the time of the previous displayed frame to the time of this
1370 prev_dis_ts = fdata->abs_ts;
1372 cf->displayed_count++;
1375 epan_dissect_cleanup(&edt);
1380 /* read in a new packet */
1381 /* returns the row of the new packet in the packet list or -1 if not displayed */
1383 read_packet(capture_file *cf, dfilter_t *dfcode,
1384 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1386 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1387 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1388 const guchar *buf = wtap_buf_ptr(cf->wth);
1391 frame_data *plist_end;
1396 /* Allocate the next list entry, and add it to the list.
1397 * memory chunks have been deprecated in favor of the slice allocator,
1398 * which has been added in 2.10
1400 #if GLIB_CHECK_VERSION(2,10,0)
1401 fdata = g_slice_new(frame_data);
1403 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1405 fdata->num = cf->count;
1409 fdata->pkt_len = phdr->len;
1410 fdata->cap_len = phdr->caplen;
1411 fdata->file_off = offset;
1412 /* To save some memory, we coarcese it into a gint8 */
1413 g_assert(phdr->pkt_encap <= G_MAXINT8);
1414 fdata->lnk_t = (gint8) phdr->pkt_encap;
1415 fdata->abs_ts.secs = phdr->ts.secs;
1416 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1417 fdata->flags.encoding = CHAR_ASCII;
1418 fdata->flags.visited = 0;
1419 fdata->flags.marked = 0;
1420 fdata->flags.ref_time = 0;
1421 fdata->color_filter = NULL;
1422 #ifdef NEW_PACKET_LIST
1423 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1424 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1430 epan_dissect_init(&edt, TRUE, FALSE);
1431 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1432 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1433 passed = dfilter_apply_edt(cf->rfcode, &edt);
1434 epan_dissect_cleanup(&edt);
1438 plist_end = cf->plist_end;
1439 fdata->prev = plist_end;
1440 if (plist_end != NULL)
1441 plist_end->next = fdata;
1443 cf->plist_start = fdata;
1444 cf->plist_end = fdata;
1446 cf->f_datalen = offset + phdr->caplen;
1448 if (!cf->redissecting) {
1449 row = add_packet_to_packet_list(fdata, cf, dfcode,
1450 filtering_tap_listeners, tap_flags,
1451 pseudo_header, buf, TRUE, TRUE);
1454 /* We didn't pass read filter so roll back count */
1457 /* XXX - if we didn't have read filters, or if we could avoid
1458 allocating the "frame_data" structure until we knew whether
1459 the frame passed the read filter, we could use a G_ALLOC_ONLY
1462 ...but, at least in one test I did, where I just made the chunk
1463 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1464 seem to save a noticeable amount of time or space. */
1465 #if GLIB_CHECK_VERSION(2,10,0)
1466 /* memory chunks have been deprecated in favor of the slice allocator,
1467 * which has been added in 2.10
1469 g_slice_free(frame_data,fdata);
1471 g_mem_chunk_free(cf->plist_chunk, fdata);
1479 cf_merge_files(char **out_filenamep, int in_file_count,
1480 char *const *in_filenames, int file_type, gboolean do_append)
1482 merge_in_file_t *in_files;
1488 int open_err, read_err, write_err, close_err;
1492 char errmsg_errno[1024+1];
1494 gboolean got_read_error = FALSE, got_write_error = FALSE;
1496 progdlg_t *progbar = NULL;
1498 gint64 f_len, file_pos;
1500 GTimeVal start_time;
1501 gchar status_str[100];
1502 gint64 progbar_nextstep;
1503 gint64 progbar_quantum;
1505 /* open the input files */
1506 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1507 &open_err, &err_info, &err_fileno)) {
1509 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1514 if (*out_filenamep != NULL) {
1515 out_filename = *out_filenamep;
1516 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1520 out_fd = create_tempfile(&tmpname, "wireshark");
1523 out_filename = g_strdup(tmpname);
1524 *out_filenamep = out_filename;
1528 merge_close_in_files(in_file_count, in_files);
1530 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1534 pdh = wtap_dump_fdopen(out_fd, file_type,
1535 merge_select_frame_type(in_file_count, in_files),
1536 merge_max_snapshot_length(in_file_count, in_files),
1537 FALSE /* compressed */, &open_err);
1540 merge_close_in_files(in_file_count, in_files);
1542 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1547 /* Get the sum of the sizes of all the files. */
1549 for (i = 0; i < in_file_count; i++)
1550 f_len += in_files[i].size;
1552 /* Update the progress bar when it gets to this value. */
1553 progbar_nextstep = 0;
1554 /* When we reach the value that triggers a progress bar update,
1555 bump that value by this amount. */
1556 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1557 /* Progress so far. */
1561 g_get_current_time(&start_time);
1563 /* do the merge (or append) */
1566 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1569 wth = merge_read_packet(in_file_count, in_files, &read_err,
1573 got_read_error = TRUE;
1577 /* Get the sum of the data offsets in all of the files. */
1579 for (i = 0; i < in_file_count; i++)
1580 data_offset += in_files[i].data_offset;
1582 /* Create the progress bar if necessary.
1583 We check on every iteration of the loop, so that it takes no
1584 longer than the standard time to create it (otherwise, for a
1585 large file, we might take considerably longer than that standard
1586 time in order to get to the next progress bar step). */
1587 if (progbar == NULL) {
1588 progbar = delayed_create_progress_dlg("Merging", "files",
1589 FALSE, &stop_flag, &start_time, progbar_val);
1592 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1593 when we update it, we have to run the GTK+ main loop to get it
1594 to repaint what's pending, and doing so may involve an "ioctl()"
1595 to see if there's any pending input from an X server, and doing
1596 that for every packet can be costly, especially on a big file. */
1597 if (data_offset >= progbar_nextstep) {
1598 /* Get the sum of the seek positions in all of the files. */
1600 for (i = 0; i < in_file_count; i++)
1601 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1602 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1603 if (progbar_val > 1.0f) {
1604 /* Some file probably grew while we were reading it.
1605 That "shouldn't happen", so we'll just clip the progress
1609 if (progbar != NULL) {
1610 g_snprintf(status_str, sizeof(status_str),
1611 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1612 file_pos / 1024, f_len / 1024);
1613 update_progress_dlg(progbar, progbar_val, status_str);
1615 progbar_nextstep += progbar_quantum;
1619 /* Well, the user decided to abort the merge. */
1623 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1624 wtap_buf_ptr(wth), &write_err)) {
1625 got_write_error = TRUE;
1630 /* We're done merging the files; destroy the progress bar if it was created. */
1631 if (progbar != NULL)
1632 destroy_progress_dlg(progbar);
1634 merge_close_in_files(in_file_count, in_files);
1635 if (!got_read_error && !got_write_error) {
1636 if (!wtap_dump_close(pdh, &write_err))
1637 got_write_error = TRUE;
1639 wtap_dump_close(pdh, &close_err);
1641 if (got_read_error) {
1643 * Find the file on which we got the error, and report the error.
1645 for (i = 0; i < in_file_count; i++) {
1646 if (in_files[i].state == GOT_ERROR) {
1647 /* Put up a message box noting that a read failed somewhere along
1651 case WTAP_ERR_UNSUPPORTED_ENCAP:
1652 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1653 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1656 errmsg = errmsg_errno;
1659 case WTAP_ERR_CANT_READ:
1660 errmsg = "An attempt to read from the capture file %s failed for"
1661 " some unknown reason.";
1664 case WTAP_ERR_SHORT_READ:
1665 errmsg = "The capture file %s appears to have been cut short"
1666 " in the middle of a packet.";
1669 case WTAP_ERR_BAD_RECORD:
1670 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1671 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1674 errmsg = errmsg_errno;
1678 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1679 "An error occurred while reading the"
1680 " capture file %%s: %s.", wtap_strerror(read_err));
1681 errmsg = errmsg_errno;
1684 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1689 if (got_write_error) {
1690 /* Put up an alert box for the write error. */
1691 cf_write_failure_alert_box(out_filename, write_err);
1694 if (got_read_error || got_write_error || stop_flag) {
1695 /* Callers aren't expected to treat an error or an explicit abort
1696 differently - we put up error dialogs ourselves, so they don't
1704 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1706 const char *filter_new = dftext ? dftext : "";
1707 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1710 /* if new filter equals old one, do nothing unless told to do so */
1711 if (!force && strcmp(filter_new, filter_old) == 0) {
1717 if (dftext == NULL) {
1718 /* The new filter is an empty filter (i.e., display all packets).
1719 * so leave dfcode==NULL
1723 * We have a filter; make a copy of it (as we'll be saving it),
1724 * and try to compile it.
1726 dftext = g_strdup(dftext);
1727 if (!dfilter_compile(dftext, &dfcode)) {
1728 /* The attempt failed; report an error. */
1729 gchar *safe_dftext = simple_dialog_format_message(dftext);
1730 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1732 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1735 "The following display filter isn't a valid display filter:\n%s\n"
1736 "See the help for a description of the display filter syntax.",
1737 simple_dialog_primary_start(), safe_dfilter_error_msg,
1738 simple_dialog_primary_end(), safe_dftext);
1739 g_free(safe_dfilter_error_msg);
1740 g_free(safe_dftext);
1746 if (dfcode == NULL) {
1747 /* Yes - free the filter text, and set it to null. */
1753 /* We have a valid filter. Replace the current filter. */
1754 g_free(cf->dfilter);
1755 cf->dfilter = dftext;
1757 /* Now rescan the packet list, applying the new filter, but not
1758 throwing away information constructed on a previous pass. */
1759 if (dftext == NULL) {
1760 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1762 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1765 /* Cleanup and release all dfilter resources */
1766 if (dfcode != NULL){
1767 dfilter_free(dfcode);
1773 cf_colorize_packets(capture_file *cf)
1775 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1779 cf_reftime_packets(capture_file *cf)
1782 #ifdef NEW_PACKET_LIST
1783 ref_time_packets(cf);
1785 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1790 cf_redissect_packets(capture_file *cf)
1792 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1795 /* Rescan the list of packets, reconstructing the CList.
1797 "action" describes why we're doing this; it's used in the progress
1800 "action_item" describes what we're doing; it's used in the progress
1803 "refilter" is TRUE if we need to re-evaluate the filter expression.
1805 "redissect" is TRUE if we need to make the dissectors reconstruct
1806 any state information they have (because a preference that affects
1807 some dissector has changed, meaning some dissector might construct
1808 its state differently from the way it was constructed the last time). */
1809 #ifdef NEW_PACKET_LIST
1811 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1812 gboolean refilter, gboolean redissect)
1814 /* Rescan packets new packet list */
1816 progdlg_t *progbar = NULL;
1821 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1822 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1823 gboolean selected_frame_seen;
1826 GTimeVal start_time;
1827 gchar status_str[100];
1828 int progbar_nextstep;
1829 int progbar_quantum;
1831 gboolean filtering_tap_listeners;
1833 gboolean add_to_packet_list = FALSE;
1836 /* Compile the current display filter.
1837 * We assume this will not fail since cf->dfilter is only set in
1838 * cf_filter IFF the filter was valid.
1840 compiled = dfilter_compile(cf->dfilter, &dfcode);
1841 g_assert(!cf->dfilter || (compiled && dfcode));
1843 /* Do we have any tap listeners with filters? */
1844 filtering_tap_listeners = have_filtering_tap_listeners();
1846 /* Get the union of the flags for all tap listeners. */
1847 tap_flags = union_of_tap_listener_flags();
1849 reset_tap_listeners();
1850 /* Which frame, if any, is the currently selected frame?
1851 XXX - should the selected frame or the focus frame be the "current"
1852 frame, that frame being the one from which "Find Frame" searches
1854 selected_frame = cf->current_frame;
1856 /* Mark frane num as not found */
1857 selected_frame_num = -1;
1859 /* Freeze the packet list while we redo it, so we don't get any
1860 screen updates while it happens. */
1861 new_packet_list_freeze();
1864 /* We need to re-initialize all the state information that protocols
1865 keep, because some preference that controls a dissector has changed,
1866 which might cause the state information to be constructed differently
1867 by that dissector. */
1869 /* We might receive new packets while redissecting, and we don't
1870 want to dissect those before their time. */
1871 cf->redissecting = TRUE;
1873 /* Cleanup all data structures used for dissection. */
1874 cleanup_dissection();
1875 /* Initialize all data structures used for dissection. */
1878 /* We need to redissect the packets so we have to discard our old
1879 * packet list store. */
1880 new_packet_list_clear();
1881 add_to_packet_list = TRUE;
1884 /* We don't yet know which will be the first and last frames displayed. */
1885 cf->first_displayed = NULL;
1886 cf->last_displayed = NULL;
1890 /* We currently don't display any packets */
1891 cf->displayed_count = 0;
1893 /* Iterate through the list of frames. Call a routine for each frame
1894 to check whether it should be displayed and, if so, add it to
1895 the display list. */
1896 nstime_set_unset(&first_ts);
1897 nstime_set_unset(&prev_dis_ts);
1898 nstime_set_unset(&prev_cap_ts);
1901 /* Update the progress bar when it gets to this value. */
1902 progbar_nextstep = 0;
1903 /* When we reach the value that triggers a progress bar update,
1904 bump that value by this amount. */
1905 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1906 /* Count of packets at which we've looked. */
1908 /* Progress so far. */
1912 g_get_current_time(&start_time);
1914 /* no previous row yet */
1916 prev_frame_num = -1;
1919 preceding_frame_num = -1;
1920 preceding_frame = NULL;
1921 following_frame_num = -1;
1922 following_frame = NULL;
1924 selected_frame_seen = FALSE;
1926 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1927 /* Create the progress bar if necessary.
1928 We check on every iteration of the loop, so that it takes no
1929 longer than the standard time to create it (otherwise, for a
1930 large file, we might take considerably longer than that standard
1931 time in order to get to the next progress bar step). */
1932 if (progbar == NULL)
1933 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1934 &stop_flag, &start_time,
1937 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1938 when we update it, we have to run the GTK+ main loop to get it
1939 to repaint what's pending, and doing so may involve an "ioctl()"
1940 to see if there's any pending input from an X server, and doing
1941 that for every packet can be costly, especially on a big file. */
1942 if (count >= progbar_nextstep) {
1943 /* let's not divide by zero. I should never be started
1944 * with count == 0, so let's assert that
1946 g_assert(cf->count > 0);
1947 progbar_val = (gfloat) count / cf->count;
1949 if (progbar != NULL) {
1950 g_snprintf(status_str, sizeof(status_str),
1951 "%4u of %u frames", count, cf->count);
1952 update_progress_dlg(progbar, progbar_val, status_str);
1955 progbar_nextstep += progbar_quantum;
1959 /* Well, the user decided to abort the filtering. Just stop.
1961 XXX - go back to the previous filter? Users probably just
1962 want not to wait for a filtering operation to finish;
1963 unless we cancel by having no filter, reverting to the
1964 previous filter will probably be even more expensive than
1965 continuing the filtering, as it involves going back to the
1966 beginning and filtering, and even with no filter we currently
1967 have to re-generate the entire clist, which is also expensive.
1969 I'm not sure what Network Monitor does, but it doesn't appear
1970 to give you an unfiltered display if you cancel. */
1977 /* Since all state for the frame was destroyed, mark the frame
1978 * as not visited, free the GSList referring to the state
1979 * data (the per-frame data itself was freed by
1980 * "init_dissection()"), and null out the GSList pointer. */
1981 fdata->flags.visited = 0;
1982 frame_data_cleanup(fdata);
1984 /* cleanup_dissection() calls se_free_all();
1985 * And after that fdata->col_text (which is allocated using se_alloc0())
1986 * no longer points to valid memory.
1988 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1989 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1992 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1993 cf->pd, fdata->cap_len, &err, &err_info)) {
1994 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1995 cf_read_error_message(err, err_info), cf->filename);
1999 /* If the previous frame is displayed, and we haven't yet seen the
2000 selected frame, remember that frame - it's the closest one we've
2001 yet seen before the selected frame. */
2002 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
2003 preceding_frame_num = prev_frame_num;
2004 preceding_frame = prev_frame;
2006 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2007 tap_flags, &cf->pseudo_header, cf->pd,
2009 add_to_packet_list);
2011 /* If this frame is displayed, and this is the first frame we've
2012 seen displayed after the selected frame, remember this frame -
2013 it's the closest one we've yet seen at or after the selected
2015 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2016 following_frame_num = fdata->num;
2017 following_frame = fdata;
2019 if (fdata == selected_frame) {
2020 selected_frame_seen = TRUE;
2021 if (fdata->flags.passed_dfilter)
2022 selected_frame_num = fdata->num;
2025 /* Remember this frame - it'll be the previous frame
2026 on the next pass through the loop. */
2027 prev_frame_num = fdata->num;
2031 /* We are done redissecting the packet list. */
2032 cf->redissecting = FALSE;
2035 /* Clear out what remains of the visited flags and per-frame data
2038 XXX - that may cause various forms of bogosity when dissecting
2039 these frames, as they won't have been seen by this sequential
2040 pass, but the only alternative I see is to keep scanning them
2041 even though the user requested that the scan stop, and that
2042 would leave the user stuck with an Wireshark grinding on
2043 until it finishes. Should we just stick them with that? */
2044 for (; fdata != NULL; fdata = fdata->next) {
2045 fdata->flags.visited = 0;
2046 frame_data_cleanup(fdata);
2050 /* We're done filtering the packets; destroy the progress bar if it
2052 if (progbar != NULL)
2053 destroy_progress_dlg(progbar);
2055 /* Unfreeze the packet list. */
2056 if (!add_to_packet_list)
2057 new_packet_list_recreate_visible_rows();
2059 new_packet_list_thaw();
2061 if (selected_frame_num == -1) {
2062 /* The selected frame didn't pass the filter. */
2063 if (selected_frame == NULL) {
2064 /* That's because there *was* no selected frame. Make the first
2065 displayed frame the current frame. */
2066 selected_frame_num = 0;
2068 /* Find the nearest displayed frame to the selected frame (whether
2069 it's before or after that frame) and make that the current frame.
2070 If the next and previous displayed frames are equidistant from the
2071 selected frame, choose the next one. */
2072 g_assert(following_frame == NULL ||
2073 following_frame->num >= selected_frame->num);
2074 g_assert(preceding_frame == NULL ||
2075 preceding_frame->num <= selected_frame->num);
2076 if (following_frame == NULL) {
2077 /* No frame after the selected frame passed the filter, so we
2078 have to select the last displayed frame before the selected
2080 selected_frame_num = preceding_frame_num;
2081 selected_frame = preceding_frame;
2082 } else if (preceding_frame == NULL) {
2083 /* No frame before the selected frame passed the filter, so we
2084 have to select the first displayed frame after the selected
2086 selected_frame_num = following_frame_num;
2087 selected_frame = following_frame;
2089 /* Frames before and after the selected frame passed the filter, so
2090 we'll select the previous frame */
2091 selected_frame_num = preceding_frame_num;
2092 selected_frame = preceding_frame;
2097 if (selected_frame_num == -1) {
2098 /* There are no frames displayed at all. */
2099 cf_unselect_packet(cf);
2101 /* Either the frame that was selected passed the filter, or we've
2102 found the nearest displayed frame to that frame. Select it, make
2103 it the focus row, and make it visible. */
2104 if (selected_frame_num == 0) {
2105 new_packet_list_select_first_row();
2107 new_packet_list_find_row_from_data(selected_frame, TRUE);
2111 /* Cleanup and release all dfilter resources */
2112 if (dfcode != NULL){
2113 dfilter_free(dfcode);
2120 rescan_packets(capture_file *cf, const char *action, const char *action_item,
2121 gboolean refilter, gboolean redissect)
2124 progdlg_t *progbar = NULL;
2129 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
2130 int selected_row, prev_row, preceding_row, following_row;
2131 gboolean selected_frame_seen;
2134 GTimeVal start_time;
2135 gchar status_str[100];
2136 int progbar_nextstep;
2137 int progbar_quantum;
2139 gboolean filtering_tap_listeners;
2141 gboolean add_to_packet_list = TRUE;
2144 /* Compile the current display filter.
2145 * We assume this will not fail since cf->dfilter is only set in
2146 * cf_filter IFF the filter was valid.
2148 compiled = dfilter_compile(cf->dfilter, &dfcode);
2149 g_assert(!cf->dfilter || (compiled && dfcode));
2151 /* Do we have any tap listeners with filters? */
2152 filtering_tap_listeners = have_filtering_tap_listeners();
2154 /* Get the union of the flags for all tap listeners. */
2155 tap_flags = union_of_tap_listener_flags();
2157 reset_tap_listeners();
2158 /* Which frame, if any, is the currently selected frame?
2159 XXX - should the selected frame or the focus frame be the "current"
2160 frame, that frame being the one from which "Find Frame" searches
2162 selected_frame = cf->current_frame;
2164 /* We don't yet know what row that frame will be on, if any, after we
2165 rebuild the clist, however. */
2168 /* Freeze the packet list while we redo it, so we don't get any
2169 screen updates while it happens. */
2170 packet_list_freeze();
2173 packet_list_clear();
2176 /* We need to re-initialize all the state information that protocols
2177 keep, because some preference that controls a dissector has changed,
2178 which might cause the state information to be constructed differently
2179 by that dissector. */
2181 /* We might receive new packets while redissecting, and we don't
2182 want to dissect those before their time. */
2183 cf->redissecting = TRUE;
2185 /* Cleanup all data structures used for dissection. */
2186 cleanup_dissection();
2187 /* Initialize all data structures used for dissection. */
2192 /* We don't yet know which will be the first and last frames displayed. */
2193 cf->first_displayed = NULL;
2194 cf->last_displayed = NULL;
2198 /* We currently don't display any packets */
2199 cf->displayed_count = 0;
2201 /* Iterate through the list of frames. Call a routine for each frame
2202 to check whether it should be displayed and, if so, add it to
2203 the display list. */
2204 nstime_set_unset(&first_ts);
2205 nstime_set_unset(&prev_dis_ts);
2208 /* Update the progress bar when it gets to this value. */
2209 progbar_nextstep = 0;
2210 /* When we reach the value that triggers a progress bar update,
2211 bump that value by this amount. */
2212 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2213 /* Count of packets at which we've looked. */
2215 /* Progress so far. */
2219 g_get_current_time(&start_time);
2221 row = -1; /* no previous row yet */
2226 preceding_frame = NULL;
2228 following_frame = NULL;
2230 selected_frame_seen = FALSE;
2232 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2233 /* Create the progress bar if necessary.
2234 We check on every iteration of the loop, so that it takes no
2235 longer than the standard time to create it (otherwise, for a
2236 large file, we might take considerably longer than that standard
2237 time in order to get to the next progress bar step). */
2238 if (progbar == NULL)
2239 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2240 &stop_flag, &start_time,
2243 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2244 when we update it, we have to run the GTK+ main loop to get it
2245 to repaint what's pending, and doing so may involve an "ioctl()"
2246 to see if there's any pending input from an X server, and doing
2247 that for every packet can be costly, especially on a big file. */
2248 if (count >= progbar_nextstep) {
2249 /* let's not divide by zero. I should never be started
2250 * with count == 0, so let's assert that
2252 g_assert(cf->count > 0);
2253 progbar_val = (gfloat) count / cf->count;
2255 if (progbar != NULL) {
2256 g_snprintf(status_str, sizeof(status_str),
2257 "%4u of %u frames", count, cf->count);
2258 update_progress_dlg(progbar, progbar_val, status_str);
2261 progbar_nextstep += progbar_quantum;
2265 /* Well, the user decided to abort the filtering. Just stop.
2267 XXX - go back to the previous filter? Users probably just
2268 want not to wait for a filtering operation to finish;
2269 unless we cancel by having no filter, reverting to the
2270 previous filter will probably be even more expensive than
2271 continuing the filtering, as it involves going back to the
2272 beginning and filtering, and even with no filter we currently
2273 have to re-generate the entire clist, which is also expensive.
2275 I'm not sure what Network Monitor does, but it doesn't appear
2276 to give you an unfiltered display if you cancel. */
2283 /* Since all state for the frame was destroyed, mark the frame
2284 * as not visited, free the GSList referring to the state
2285 * data (the per-frame data itself was freed by
2286 * "init_dissection()"), and null out the GSList pointer.
2288 fdata->flags.visited = 0;
2289 frame_data_cleanup(fdata);
2292 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2293 cf->pd, fdata->cap_len, &err, &err_info)) {
2294 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2295 cf_read_error_message(err, err_info), cf->filename);
2299 /* If the previous frame is displayed, and we haven't yet seen the
2300 selected frame, remember that frame - it's the closest one we've
2301 yet seen before the selected frame. */
2302 if (prev_row != -1 && !selected_frame_seen) {
2303 preceding_row = prev_row;
2304 preceding_frame = prev_frame;
2306 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2307 tap_flags, &cf->pseudo_header, cf->pd,
2309 add_to_packet_list);
2311 /* If this frame is displayed, and this is the first frame we've
2312 seen displayed after the selected frame, remember this frame -
2313 it's the closest one we've yet seen at or after the selected
2315 if (row != -1 && selected_frame_seen && following_row == -1) {
2316 following_row = row;
2317 following_frame = fdata;
2319 if (fdata == selected_frame) {
2321 selected_frame_seen = TRUE;
2324 /* Remember this row/frame - it'll be the previous row/frame
2325 on the next pass through the loop. */
2330 /* We are done redissecting the packet list. */
2331 cf->redissecting = FALSE;
2334 /* Clear out what remains of the visited flags and per-frame data
2337 XXX - that may cause various forms of bogosity when dissecting
2338 these frames, as they won't have been seen by this sequential
2339 pass, but the only alternative I see is to keep scanning them
2340 even though the user requested that the scan stop, and that
2341 would leave the user stuck with an Wireshark grinding on
2342 until it finishes. Should we just stick them with that? */
2343 for (; fdata != NULL; fdata = fdata->next) {
2344 fdata->flags.visited = 0;
2345 frame_data_cleanup(fdata);
2349 /* We're done filtering the packets; destroy the progress bar if it
2351 if (progbar != NULL)
2352 destroy_progress_dlg(progbar);
2354 /* Unfreeze the packet list. */
2357 if (selected_row == -1) {
2358 /* The selected frame didn't pass the filter. */
2359 if (selected_frame == NULL) {
2360 /* That's because there *was* no selected frame. Make the first
2361 displayed frame the current frame. */
2364 /* Find the nearest displayed frame to the selected frame (whether
2365 it's before or after that frame) and make that the current frame.
2366 If the next and previous displayed frames are equidistant from the
2367 selected frame, choose the next one. */
2368 g_assert(following_frame == NULL ||
2369 following_frame->num >= selected_frame->num);
2370 g_assert(preceding_frame == NULL ||
2371 preceding_frame->num <= selected_frame->num);
2372 if (following_frame == NULL) {
2373 /* No frame after the selected frame passed the filter, so we
2374 have to select the last displayed frame before the selected
2376 selected_row = preceding_row;
2377 } else if (preceding_frame == NULL) {
2378 /* No frame before the selected frame passed the filter, so we
2379 have to select the first displayed frame after the selected
2381 selected_row = following_row;
2383 /* Frames before and after the selected frame passed the filter, so
2384 we'll select the previous frame */
2385 selected_row = preceding_row;
2390 if (selected_row == -1) {
2391 /* There are no frames displayed at all. */
2392 cf_unselect_packet(cf);
2394 /* Either the frame that was selected passed the filter, or we've
2395 found the nearest displayed frame to that frame. Select it, make
2396 it the focus row, and make it visible. */
2397 if (selected_row == 0) {
2398 /* Set to invalid to force update of packet list and packet details */
2399 cf->current_row = -1;
2401 packet_list_set_selected_row(selected_row);
2404 /* Cleanup and release all dfilter resources */
2405 if (dfcode != NULL){
2406 dfilter_free(dfcode);
2409 #endif /* NEW_PACKET_LIST */
2412 * Scan trough all frame data and recalculate the ref time
2413 * without rereading the file.
2414 * XXX - do we need a progres bar or is this fast enough?
2416 #ifdef NEW_PACKET_LIST
2418 ref_time_packets(capture_file *cf)
2422 nstime_set_unset(&first_ts);
2423 nstime_set_unset(&prev_dis_ts);
2424 nstime_set_unset(&prev_cap_ts);
2427 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2428 /* just add some value here until we know if it is being displayed or not */
2429 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2431 /* If we don't have the time stamp of the first packet in the
2432 capture, it's because this is the first packet. Save the time
2433 stamp of this packet as the time stamp of the first packet. */
2434 if (nstime_is_unset(&first_ts)) {
2435 first_ts = fdata->abs_ts;
2437 /* if this frames is marked as a reference time frame, reset
2438 firstsec and firstusec to this frame */
2439 if(fdata->flags.ref_time){
2440 first_ts = fdata->abs_ts;
2443 /* If we don't have the time stamp of the previous displayed packet,
2444 it's because this is the first displayed packet. Save the time
2445 stamp of this packet as the time stamp of the previous displayed
2447 if (nstime_is_unset(&prev_dis_ts)) {
2448 prev_dis_ts = fdata->abs_ts;
2451 /* Get the time elapsed between the first packet and this packet. */
2452 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2454 /* If it's greater than the current elapsed time, set the elapsed time
2455 to it (we check for "greater than" so as not to be confused by
2456 time moving backwards). */
2457 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2458 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2459 cf->elapsed_time = fdata->rel_ts;
2462 /* Get the time elapsed between the previous displayed packet and
2464 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2466 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2467 /* This frame either passed the display filter list or is marked as
2468 a time reference frame. All time reference frames are displayed
2469 even if they dont pass the display filter */
2470 if(fdata->flags.ref_time){
2471 /* if this was a TIME REF frame we should reset the cul bytes field */
2472 cum_bytes = fdata->pkt_len;
2473 fdata->cum_bytes = cum_bytes;
2475 /* increase cum_bytes with this packets length */
2476 cum_bytes += fdata->pkt_len;
2490 process_specified_packets(capture_file *cf, packet_range_t *range,
2491 const char *string1, const char *string2, gboolean terminate_is_stop,
2492 gboolean (*callback)(capture_file *, frame_data *,
2493 union wtap_pseudo_header *, const guint8 *, void *),
2494 void *callback_args)
2499 union wtap_pseudo_header pseudo_header;
2500 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2501 psp_return_t ret = PSP_FINISHED;
2503 progdlg_t *progbar = NULL;
2506 gboolean progbar_stop_flag;
2507 GTimeVal progbar_start_time;
2508 gchar progbar_status_str[100];
2509 int progbar_nextstep;
2510 int progbar_quantum;
2511 range_process_e process_this;
2513 /* Update the progress bar when it gets to this value. */
2514 progbar_nextstep = 0;
2515 /* When we reach the value that triggers a progress bar update,
2516 bump that value by this amount. */
2517 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2518 /* Count of packets at which we've looked. */
2520 /* Progress so far. */
2523 progbar_stop_flag = FALSE;
2524 g_get_current_time(&progbar_start_time);
2526 packet_range_process_init(range);
2528 /* Iterate through the list of packets, printing the packets that
2529 were selected by the current display filter. */
2530 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2531 /* Create the progress bar if necessary.
2532 We check on every iteration of the loop, so that it takes no
2533 longer than the standard time to create it (otherwise, for a
2534 large file, we might take considerably longer than that standard
2535 time in order to get to the next progress bar step). */
2536 if (progbar == NULL)
2537 progbar = delayed_create_progress_dlg(string1, string2,
2540 &progbar_start_time,
2543 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2544 when we update it, we have to run the GTK+ main loop to get it
2545 to repaint what's pending, and doing so may involve an "ioctl()"
2546 to see if there's any pending input from an X server, and doing
2547 that for every packet can be costly, especially on a big file. */
2548 if (progbar_count >= progbar_nextstep) {
2549 /* let's not divide by zero. I should never be started
2550 * with count == 0, so let's assert that
2552 g_assert(cf->count > 0);
2553 progbar_val = (gfloat) progbar_count / cf->count;
2555 if (progbar != NULL) {
2556 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2557 "%4u of %u packets", progbar_count, cf->count);
2558 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2561 progbar_nextstep += progbar_quantum;
2564 if (progbar_stop_flag) {
2565 /* Well, the user decided to abort the operation. Just stop,
2566 and arrange to return PSP_STOPPED to our caller, so they know
2567 it was stopped explicitly. */
2574 /* do we have to process this packet? */
2575 process_this = packet_range_process_packet(range, fdata);
2576 if (process_this == range_process_next) {
2577 /* this packet uninteresting, continue with next one */
2579 } else if (process_this == range_processing_finished) {
2580 /* all interesting packets processed, stop the loop */
2584 /* Get the packet */
2585 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2586 pd, fdata->cap_len, &err, &err_info)) {
2587 /* Attempt to get the packet failed. */
2588 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2589 cf_read_error_message(err, err_info), cf->filename);
2593 /* Process the packet */
2594 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2595 /* Callback failed. We assume it reported the error appropriately. */
2601 /* We're done printing the packets; destroy the progress bar if
2603 if (progbar != NULL)
2604 destroy_progress_dlg(progbar);
2610 gboolean construct_protocol_tree;
2612 } retap_callback_args_t;
2615 retap_packet(capture_file *cf _U_, frame_data *fdata,
2616 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2619 retap_callback_args_t *args = argsp;
2622 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2623 tap_queue_init(&edt);
2624 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2625 tap_push_tapped_queue(&edt);
2626 epan_dissect_cleanup(&edt);
2632 cf_retap_packets(capture_file *cf)
2634 packet_range_t range;
2635 retap_callback_args_t callback_args;
2636 gboolean filtering_tap_listeners;
2639 /* Do we have any tap listeners with filters? */
2640 filtering_tap_listeners = have_filtering_tap_listeners();
2642 tap_flags = union_of_tap_listener_flags();
2644 /* If any tap listeners have filters, or require the protocol tree,
2645 construct the protocol tree. */
2646 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2647 (tap_flags & TL_REQUIRES_PROTO_TREE);
2649 /* If any tap listeners require the columns, construct them. */
2650 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2652 /* Reset the tap listeners. */
2653 reset_tap_listeners();
2655 /* Iterate through the list of packets, dissecting all packets and
2656 re-running the taps. */
2657 packet_range_init(&range);
2658 packet_range_process_init(&range);
2659 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2660 "all packets", TRUE, retap_packet,
2663 /* Completed successfully. */
2667 /* Well, the user decided to abort the refiltering.
2668 Return CF_READ_ABORTED so our caller knows they did that. */
2669 return CF_READ_ABORTED;
2672 /* Error while retapping. */
2673 return CF_READ_ERROR;
2676 g_assert_not_reached();
2681 print_args_t *print_args;
2682 gboolean print_header_line;
2683 char *header_line_buf;
2684 int header_line_buf_len;
2685 gboolean print_formfeed;
2686 gboolean print_separator;
2690 } print_callback_args_t;
2693 print_packet(capture_file *cf, frame_data *fdata,
2694 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2697 print_callback_args_t *args = argsp;
2704 gboolean proto_tree_needed;
2705 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2706 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2708 /* Create the protocol tree, and make it visible, if we're printing
2709 the dissection or the hex data.
2710 XXX - do we need it if we're just printing the hex data? */
2712 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2713 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2715 /* Fill in the column information if we're printing the summary
2717 if (args->print_args->print_summary) {
2718 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2719 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2721 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2723 if (args->print_formfeed) {
2724 if (!new_page(args->print_args->stream))
2727 if (args->print_separator) {
2728 if (!print_line(args->print_args->stream, 0, ""))
2734 * We generate bookmarks, if the output format supports them.
2735 * The name is "__frameN__".
2737 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2739 if (args->print_args->print_summary) {
2740 if (args->print_header_line) {
2741 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2743 args->print_header_line = FALSE; /* we might not need to print any more */
2745 cp = &args->line_buf[0];
2747 for (i = 0; i < cf->cinfo.num_cols; i++) {
2748 /* Find the length of the string for this column. */
2749 column_len = (int) strlen(cf->cinfo.col_data[i]);
2750 if (args->col_widths[i] > column_len)
2751 column_len = args->col_widths[i];
2753 /* Make sure there's room in the line buffer for the column; if not,
2754 double its length. */
2755 line_len += column_len + 1; /* "+1" for space */
2756 if (line_len > args->line_buf_len) {
2757 cp_off = (int) (cp - args->line_buf);
2758 args->line_buf_len = 2 * line_len;
2759 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2760 cp = args->line_buf + cp_off;
2763 /* Right-justify the packet number column. */
2764 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2765 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2767 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2769 if (i != cf->cinfo.num_cols - 1)
2775 * Generate a bookmark, using the summary line as the title.
2777 if (!print_bookmark(args->print_args->stream, bookmark_name,
2781 if (!print_line(args->print_args->stream, 0, args->line_buf))
2785 * Generate a bookmark, using "Frame N" as the title, as we're not
2786 * printing the summary line.
2788 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2789 if (!print_bookmark(args->print_args->stream, bookmark_name,
2792 } /* if (print_summary) */
2794 if (args->print_args->print_dissections != print_dissections_none) {
2795 if (args->print_args->print_summary) {
2796 /* Separate the summary line from the tree with a blank line. */
2797 if (!print_line(args->print_args->stream, 0, ""))
2801 /* Print the information in that tree. */
2802 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2805 /* Print a blank line if we print anything after this (aka more than one packet). */
2806 args->print_separator = TRUE;
2808 /* Print a header line if we print any more packet summaries */
2809 args->print_header_line = TRUE;
2812 if (args->print_args->print_hex) {
2813 /* Print the full packet data as hex. */
2814 if (!print_hex_data(args->print_args->stream, &edt))
2817 /* Print a blank line if we print anything after this (aka more than one packet). */
2818 args->print_separator = TRUE;
2820 /* Print a header line if we print any more packet summaries */
2821 args->print_header_line = TRUE;
2822 } /* if (args->print_args->print_dissections != print_dissections_none) */
2824 epan_dissect_cleanup(&edt);
2826 /* do we want to have a formfeed between each packet from now on? */
2827 if(args->print_args->print_formfeed) {
2828 args->print_formfeed = TRUE;
2834 epan_dissect_cleanup(&edt);
2839 cf_print_packets(capture_file *cf, print_args_t *print_args)
2842 print_callback_args_t callback_args;
2850 callback_args.print_args = print_args;
2851 callback_args.print_header_line = TRUE;
2852 callback_args.header_line_buf = NULL;
2853 callback_args.header_line_buf_len = 256;
2854 callback_args.print_formfeed = FALSE;
2855 callback_args.print_separator = FALSE;
2856 callback_args.line_buf = NULL;
2857 callback_args.line_buf_len = 256;
2858 callback_args.col_widths = NULL;
2860 if (!print_preamble(print_args->stream, cf->filename)) {
2861 destroy_print_stream(print_args->stream);
2862 return CF_PRINT_WRITE_ERROR;
2865 if (print_args->print_summary) {
2866 /* We're printing packet summaries. Allocate the header line buffer
2867 and get the column widths. */
2868 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2870 /* Find the widths for each of the columns - maximum of the
2871 width of the title and the width of the data - and construct
2872 a buffer with a line containing the column titles. */
2873 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2874 cp = &callback_args.header_line_buf[0];
2876 for (i = 0; i < cf->cinfo.num_cols; i++) {
2877 /* Don't pad the last column. */
2878 if (i == cf->cinfo.num_cols - 1)
2879 callback_args.col_widths[i] = 0;
2881 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2882 data_width = get_column_char_width(get_column_format(i));
2883 if (data_width > callback_args.col_widths[i])
2884 callback_args.col_widths[i] = data_width;
2887 /* Find the length of the string for this column. */
2888 column_len = (int) strlen(cf->cinfo.col_title[i]);
2889 if (callback_args.col_widths[i] > column_len)
2890 column_len = callback_args.col_widths[i];
2892 /* Make sure there's room in the line buffer for the column; if not,
2893 double its length. */
2894 line_len += column_len + 1; /* "+1" for space */
2895 if (line_len > callback_args.header_line_buf_len) {
2896 cp_off = (int) (cp - callback_args.header_line_buf);
2897 callback_args.header_line_buf_len = 2 * line_len;
2898 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2899 callback_args.header_line_buf_len + 1);
2900 cp = callback_args.header_line_buf + cp_off;
2903 /* Right-justify the packet number column. */
2904 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2905 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2907 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2909 if (i != cf->cinfo.num_cols - 1)
2914 /* Now start out the main line buffer with the same length as the
2915 header line buffer. */
2916 callback_args.line_buf_len = callback_args.header_line_buf_len;
2917 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2918 } /* if (print_summary) */
2920 /* Iterate through the list of packets, printing the packets we were
2922 ret = process_specified_packets(cf, &print_args->range, "Printing",
2923 "selected packets", TRUE, print_packet,
2926 g_free(callback_args.header_line_buf);
2927 g_free(callback_args.line_buf);
2928 g_free(callback_args.col_widths);
2933 /* Completed successfully. */
2937 /* Well, the user decided to abort the printing.
2939 XXX - note that what got generated before they did that
2940 will get printed if we're piping to a print program; we'd
2941 have to write to a file and then hand that to the print
2942 program to make it actually not print anything. */
2946 /* Error while printing.
2948 XXX - note that what got generated before they did that
2949 will get printed if we're piping to a print program; we'd
2950 have to write to a file and then hand that to the print
2951 program to make it actually not print anything. */
2952 destroy_print_stream(print_args->stream);
2953 return CF_PRINT_WRITE_ERROR;
2956 if (!print_finale(print_args->stream)) {
2957 destroy_print_stream(print_args->stream);
2958 return CF_PRINT_WRITE_ERROR;
2961 if (!destroy_print_stream(print_args->stream))
2962 return CF_PRINT_WRITE_ERROR;
2968 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2969 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2975 /* Create the protocol tree, but don't fill in the column information. */
2976 epan_dissect_init(&edt, TRUE, TRUE);
2977 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2979 /* Write out the information in that tree. */
2980 proto_tree_write_pdml(&edt, fh);
2982 epan_dissect_cleanup(&edt);
2988 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2993 fh = ws_fopen(print_args->file, "w");
2995 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2997 write_pdml_preamble(fh);
3000 return CF_PRINT_WRITE_ERROR;
3003 /* Iterate through the list of packets, printing the packets we were
3005 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
3006 "selected packets", TRUE,
3007 write_pdml_packet, fh);
3012 /* Completed successfully. */
3016 /* Well, the user decided to abort the printing. */
3020 /* Error while printing. */
3022 return CF_PRINT_WRITE_ERROR;
3025 write_pdml_finale(fh);
3028 return CF_PRINT_WRITE_ERROR;
3031 /* XXX - check for an error */
3038 write_psml_packet(capture_file *cf, frame_data *fdata,
3039 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3044 gboolean proto_tree_needed;
3046 /* Fill in the column information, only create the protocol tree
3047 if having custom columns. */
3048 proto_tree_needed = have_custom_cols(&cf->cinfo);
3049 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3050 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3051 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3053 /* Write out the information in that tree. */
3054 proto_tree_write_psml(&edt, fh);
3056 epan_dissect_cleanup(&edt);
3062 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
3067 fh = ws_fopen(print_args->file, "w");
3069 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3071 write_psml_preamble(fh);
3074 return CF_PRINT_WRITE_ERROR;
3077 /* Iterate through the list of packets, printing the packets we were
3079 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
3080 "selected packets", TRUE,
3081 write_psml_packet, fh);
3086 /* Completed successfully. */
3090 /* Well, the user decided to abort the printing. */
3094 /* Error while printing. */
3096 return CF_PRINT_WRITE_ERROR;
3099 write_psml_finale(fh);
3102 return CF_PRINT_WRITE_ERROR;
3105 /* XXX - check for an error */
3112 write_csv_packet(capture_file *cf, frame_data *fdata,
3113 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3118 gboolean proto_tree_needed;
3120 /* Fill in the column information, only create the protocol tree
3121 if having custom columns. */
3122 proto_tree_needed = have_custom_cols(&cf->cinfo);
3123 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3124 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3125 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3127 /* Write out the information in that tree. */
3128 proto_tree_write_csv(&edt, fh);
3130 epan_dissect_cleanup(&edt);
3136 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3141 fh = ws_fopen(print_args->file, "w");
3143 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3145 write_csv_preamble(fh);
3148 return CF_PRINT_WRITE_ERROR;
3151 /* Iterate through the list of packets, printing the packets we were
3153 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3154 "selected packets", TRUE,
3155 write_csv_packet, fh);
3160 /* Completed successfully. */
3164 /* Well, the user decided to abort the printing. */
3168 /* Error while printing. */
3170 return CF_PRINT_WRITE_ERROR;
3173 write_csv_finale(fh);
3176 return CF_PRINT_WRITE_ERROR;
3179 /* XXX - check for an error */
3186 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3187 union wtap_pseudo_header *pseudo_header _U_,
3188 const guint8 *pd, void *argsp)
3192 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3197 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3202 fh = ws_fopen(print_args->file, "w");
3205 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3207 write_carrays_preamble(fh);
3211 return CF_PRINT_WRITE_ERROR;
3214 /* Iterate through the list of packets, printing the packets we were
3216 ret = process_specified_packets(cf, &print_args->range,
3218 "selected packets", TRUE,
3219 write_carrays_packet, fh);
3222 /* Completed successfully. */
3225 /* Well, the user decided to abort the printing. */
3228 /* Error while printing. */
3230 return CF_PRINT_WRITE_ERROR;
3233 write_carrays_finale(fh);
3237 return CF_PRINT_WRITE_ERROR;
3244 #ifndef NEW_PACKET_LIST /* This function is not needed with the new packet list */
3246 /* Scan through the packet list and change all columns that use the
3247 "command-line-specified" time stamp format to use the current
3248 value of that format. */
3250 cf_change_time_formats(capture_file *cf)
3254 progdlg_t *progbar = NULL;
3259 GTimeVal start_time;
3260 gchar status_str[100];
3261 int progbar_nextstep;
3262 int progbar_quantum;
3263 gboolean sorted_by_frame_column;
3265 /* Adjust timestamp precision if auto is selected */
3266 cf_timestamp_auto_precision(cf);
3268 /* Are there any columns with time stamps in the "command-line-specified"
3271 XXX - we have to force the "column is writable" flag on, as it
3272 might be off from the last frame that was dissected. */
3273 col_set_writable(&cf->cinfo, TRUE);
3274 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3275 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3276 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3277 !check_col(&cf->cinfo, COL_REL_TIME) &&
3278 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3279 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3280 /* No, there aren't any columns in that format, so we have no work
3285 /* Freeze the packet list while we redo it, so we don't get any
3286 screen updates while it happens. */
3287 packet_list_freeze();
3289 /* Update the progress bar when it gets to this value. */
3290 progbar_nextstep = 0;
3291 /* When we reach the value that triggers a progress bar update,
3292 bump that value by this amount. */
3293 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3294 /* Count of packets at which we've looked. */
3296 /* Progress so far. */
3299 /* If the rows are currently sorted by the frame column then we know
3300 * the row number of each packet: it's the row number of the previously
3301 * displayed packet + 1.
3303 * Otherwise, if the display is sorted by a different column then we have
3304 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3305 * of changing the time display format O(N**2)).
3307 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3308 * the row number and walks that many elements down the clist to find
3309 * the appropriate element.)
3311 sorted_by_frame_column = FALSE;
3312 for (i = 0; i < cf->cinfo.num_cols; i++) {
3313 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3315 sorted_by_frame_column = (i == packet_list_get_sort_column());
3321 g_get_current_time(&start_time);
3323 /* Iterate through the list of packets, checking whether the packet
3324 is in a row of the summary list and, if so, whether there are
3325 any columns that show the time in the "command-line-specified"
3326 format and, if so, update that row. */
3327 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
3328 /* Create the progress bar if necessary.
3329 We check on every iteration of the loop, so that it takes no
3330 longer than the standard time to create it (otherwise, for a
3331 large file, we might take considerably longer than that standard
3332 time in order to get to the next progress bar step). */
3333 if (progbar == NULL)
3334 progbar = delayed_create_progress_dlg("Changing", "time display",
3335 TRUE, &stop_flag, &start_time, progbar_val);
3337 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3338 when we update it, we have to run the GTK+ main loop to get it
3339 to repaint what's pending, and doing so may involve an "ioctl()"
3340 to see if there's any pending input from an X server, and doing
3341 that for every packet can be costly, especially on a big file. */
3342 if (count >= progbar_nextstep) {
3343 /* let's not divide by zero. I should never be started
3344 * with count == 0, so let's assert that
3346 g_assert(cf->count > 0);
3348 progbar_val = (gfloat) count / cf->count;
3350 if (progbar != NULL) {
3351 g_snprintf(status_str, sizeof(status_str),
3352 "%4u of %u packets", count, cf->count);
3353 update_progress_dlg(progbar, progbar_val, status_str);
3356 progbar_nextstep += progbar_quantum;
3360 /* Well, the user decided to abort the redisplay. Just stop.
3362 XXX - this leaves the time field in the old format in
3363 frames we haven't yet processed. So it goes; should we
3364 simply not offer them the option of stopping? */
3370 /* Find what row this packet is in. */
3371 if (!sorted_by_frame_column) {
3372 /* This function is O(N), so we try to avoid using it... */
3373 row = packet_list_find_row_from_data(fdata);
3375 /* ...which we do by maintaining a count of packets that are
3376 being displayed (i.e., that have passed the display filter),
3377 and using the current value of that count as the row number
3378 (which is why we can only do it when the display is sorted
3379 by the frame number). */
3380 if (fdata->flags.passed_dfilter)
3387 /* This packet is in the summary list, on row "row". */
3389 for (i = 0; i < cf->cinfo.num_cols; i++) {
3390 if (col_has_time_fmt(&cf->cinfo, i)) {
3391 /* This is one of the columns that shows the time in
3392 "command-line-specified" format; update it. */
3393 cf->cinfo.col_buf[i][0] = '\0';
3394 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3395 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3401 /* We're done redisplaying the packets; destroy the progress bar if it
3403 if (progbar != NULL)
3404 destroy_progress_dlg(progbar);
3406 /* Set the column widths of those columns that show the time in
3407 "command-line-specified" format. */
3408 for (i = 0; i < cf->cinfo.num_cols; i++) {
3409 if (col_has_time_fmt(&cf->cinfo, i)) {
3410 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3414 /* Unfreeze the packet list. */
3417 #endif /* NEW_PACKET_LIST */
3424 gboolean frame_matched;
3428 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3432 mdata.string = string;
3433 mdata.string_len = strlen(string);
3434 return find_packet(cf, match_protocol_tree, &mdata);
3438 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3440 match_data *mdata = criterion;
3443 /* Construct the protocol tree, including the displayed text */
3444 epan_dissect_init(&edt, TRUE, TRUE);
3445 /* We don't need the column information */
3446 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3448 /* Iterate through all the nodes, seeing if they have text that matches. */
3450 mdata->frame_matched = FALSE;
3451 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3452 epan_dissect_cleanup(&edt);
3453 return mdata->frame_matched;
3457 match_subtree_text(proto_node *node, gpointer data)
3459 match_data *mdata = (match_data*) data;
3460 const gchar *string = mdata->string;
3461 size_t string_len = mdata->string_len;
3462 capture_file *cf = mdata->cf;
3463 field_info *fi = PNODE_FINFO(node);
3464 gchar label_str[ITEM_LABEL_LENGTH];
3471 g_assert(fi && "dissection with an invisible proto tree?");
3473 if (mdata->frame_matched) {
3474 /* We already had a match; don't bother doing any more work. */
3478 /* Don't match invisible entries. */
3479 if (PROTO_ITEM_IS_HIDDEN(node))
3482 /* was a free format label produced? */
3484 label_ptr = fi->rep->representation;
3486 /* no, make a generic label */
3487 label_ptr = label_str;
3488 proto_item_fill_label(fi, label_str);
3491 /* Does that label match? */
3492 label_len = strlen(label_ptr);
3493 for (i = 0; i < label_len; i++) {
3494 c_char = label_ptr[i];
3496 c_char = toupper(c_char);
3497 if (c_char == string[c_match]) {
3499 if (c_match == string_len) {
3500 /* No need to look further; we have a match */
3501 mdata->frame_matched = TRUE;
3508 /* Recurse into the subtree, if it exists */
3509 if (node->first_child != NULL)
3510 proto_tree_children_foreach(node, match_subtree_text, mdata);
3514 cf_find_packet_summary_line(capture_file *cf, const char *string)
3518 mdata.string = string;
3519 mdata.string_len = strlen(string);
3520 return find_packet(cf, match_summary_line, &mdata);
3524 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3526 match_data *mdata = criterion;
3527 const gchar *string = mdata->string;
3528 size_t string_len = mdata->string_len;
3530 const char *info_column;
3531 size_t info_column_len;
3532 gboolean frame_matched = FALSE;
3538 /* Don't bother constructing the protocol tree */
3539 epan_dissect_init(&edt, FALSE, FALSE);
3540 /* Get the column information */
3541 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3543 /* Find the Info column */
3544 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3545 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3546 /* Found it. See if we match. */
3547 info_column = edt.pi.cinfo->col_data[colx];
3548 info_column_len = strlen(info_column);
3549 for (i = 0; i < info_column_len; i++) {
3550 c_char = info_column[i];
3552 c_char = toupper(c_char);
3553 if (c_char == string[c_match]) {
3555 if (c_match == string_len) {
3556 frame_matched = TRUE;
3565 epan_dissect_cleanup(&edt);
3566 return frame_matched;
3572 } cbs_t; /* "Counted byte string" */
3575 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3580 info.data_len = string_size;
3582 /* String or hex search? */
3584 /* String search - what type of string? */
3585 switch (cf->scs_type) {
3587 case SCS_ASCII_AND_UNICODE:
3588 return find_packet(cf, match_ascii_and_unicode, &info);
3591 return find_packet(cf, match_ascii, &info);
3594 return find_packet(cf, match_unicode, &info);
3597 g_assert_not_reached();
3601 return find_packet(cf, match_binary, &info);
3605 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3607 cbs_t *info = criterion;
3608 const guint8 *ascii_text = info->data;
3609 size_t textlen = info->data_len;
3610 gboolean frame_matched;
3616 frame_matched = FALSE;
3617 buf_len = fdata->pkt_len;
3618 for (i = 0; i < buf_len; i++) {
3621 c_char = toupper(c_char);
3623 if (c_char == ascii_text[c_match]) {
3625 if (c_match == textlen) {
3626 frame_matched = TRUE;
3627 cf->search_pos = i; /* Save the position of the last character
3628 for highlighting the field. */
3635 return frame_matched;
3639 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3641 cbs_t *info = criterion;
3642 const guint8 *ascii_text = info->data;
3643 size_t textlen = info->data_len;
3644 gboolean frame_matched;
3650 frame_matched = FALSE;
3651 buf_len = fdata->pkt_len;
3652 for (i = 0; i < buf_len; i++) {
3655 c_char = toupper(c_char);
3656 if (c_char == ascii_text[c_match]) {
3658 if (c_match == textlen) {
3659 frame_matched = TRUE;
3660 cf->search_pos = i; /* Save the position of the last character
3661 for highlighting the field. */
3667 return frame_matched;
3671 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3673 cbs_t *info = criterion;
3674 const guint8 *ascii_text = info->data;
3675 size_t textlen = info->data_len;
3676 gboolean frame_matched;
3682 frame_matched = FALSE;
3683 buf_len = fdata->pkt_len;
3684 for (i = 0; i < buf_len; i++) {
3687 c_char = toupper(c_char);
3688 if (c_char == ascii_text[c_match]) {
3691 if (c_match == textlen) {
3692 frame_matched = TRUE;
3693 cf->search_pos = i; /* Save the position of the last character
3694 for highlighting the field. */
3700 return frame_matched;
3704 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3706 cbs_t *info = criterion;
3707 const guint8 *binary_data = info->data;
3708 size_t datalen = info->data_len;
3709 gboolean frame_matched;
3714 frame_matched = FALSE;
3715 buf_len = fdata->pkt_len;
3716 for (i = 0; i < buf_len; i++) {
3717 if (cf->pd[i] == binary_data[c_match]) {
3719 if (c_match == datalen) {
3720 frame_matched = TRUE;
3721 cf->search_pos = i; /* Save the position of the last character
3722 for highlighting the field. */
3728 return frame_matched;
3732 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3734 return find_packet(cf, match_dfilter, sfcode);
3738 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3740 dfilter_t *sfcode = criterion;
3742 gboolean frame_matched;
3744 epan_dissect_init(&edt, TRUE, FALSE);
3745 epan_dissect_prime_dfilter(&edt, sfcode);
3746 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3747 frame_matched = dfilter_apply_edt(sfcode, &edt);
3748 epan_dissect_cleanup(&edt);
3749 return frame_matched;
3753 find_packet(capture_file *cf,
3754 gboolean (*match_function)(capture_file *, frame_data *, void *),
3757 frame_data *start_fd;
3759 frame_data *new_fd = NULL;
3760 progdlg_t *progbar = NULL;
3767 GTimeVal start_time;
3768 gchar status_str[100];
3769 int progbar_nextstep;
3770 int progbar_quantum;
3773 start_fd = cf->current_frame;
3774 if (start_fd != NULL) {
3775 /* Iterate through the list of packets, starting at the packet we've
3776 picked, calling a routine to run the filter on the packet, see if
3777 it matches, and stop if so. */
3781 /* Update the progress bar when it gets to this value. */
3782 progbar_nextstep = 0;
3783 /* When we reach the value that triggers a progress bar update,
3784 bump that value by this amount. */
3785 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3786 /* Progress so far. */
3790 g_get_current_time(&start_time);
3793 title = cf->sfilter?cf->sfilter:"";
3795 /* Create the progress bar if necessary.
3796 We check on every iteration of the loop, so that it takes no
3797 longer than the standard time to create it (otherwise, for a
3798 large file, we might take considerably longer than that standard
3799 time in order to get to the next progress bar step). */
3800 if (progbar == NULL)
3801 progbar = delayed_create_progress_dlg("Searching", title,
3802 FALSE, &stop_flag, &start_time, progbar_val);
3804 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3805 when we update it, we have to run the GTK+ main loop to get it
3806 to repaint what's pending, and doing so may involve an "ioctl()"
3807 to see if there's any pending input from an X server, and doing
3808 that for every packet can be costly, especially on a big file. */
3809 if (count >= progbar_nextstep) {
3810 /* let's not divide by zero. I should never be started
3811 * with count == 0, so let's assert that
3813 g_assert(cf->count > 0);
3815 progbar_val = (gfloat) count / cf->count;
3817 if (progbar != NULL) {
3818 g_snprintf(status_str, sizeof(status_str),
3819 "%4u of %u packets", count, cf->count);
3820 update_progress_dlg(progbar, progbar_val, status_str);
3823 progbar_nextstep += progbar_quantum;
3827 /* Well, the user decided to abort the search. Go back to the
3828 frame where we started. */
3833 /* Go past the current frame. */
3834 if (cf->sbackward) {
3835 /* Go on to the previous frame. */
3836 fdata = fdata->prev;
3837 if (fdata == NULL) {
3839 * XXX - other apps have a bit more of a detailed message
3840 * for this, and instead of offering "OK" and "Cancel",
3841 * they offer things such as "Continue" and "Cancel";
3842 * we need an API for popping up alert boxes with
3843 * {Verb} and "Cancel".
3846 if (prefs.gui_find_wrap)
3848 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3849 "%sBeginning of capture exceeded!%s\n\n"
3850 "Search is continued from the end of the capture.",
3851 simple_dialog_primary_start(), simple_dialog_primary_end());
3852 fdata = cf->plist_end; /* wrap around */
3856 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3857 "%sBeginning of capture exceeded!%s\n\n"
3858 "Try searching forwards.",
3859 simple_dialog_primary_start(), simple_dialog_primary_end());
3860 fdata = start_fd; /* stay on previous packet */
3864 /* Go on to the next frame. */
3865 fdata = fdata->next;
3866 if (fdata == NULL) {
3867 if (prefs.gui_find_wrap)
3869 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3870 "%sEnd of capture exceeded!%s\n\n"
3871 "Search is continued from the start of the capture.",
3872 simple_dialog_primary_start(), simple_dialog_primary_end());
3873 fdata = cf->plist_start; /* wrap around */
3877 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3878 "%sEnd of capture exceeded!%s\n\n"
3879 "Try searching backwards.",
3880 simple_dialog_primary_start(), simple_dialog_primary_end());
3881 fdata = start_fd; /* stay on previous packet */
3888 /* Is this packet in the display? */
3889 if (fdata->flags.passed_dfilter) {
3890 /* Yes. Load its data. */
3891 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3892 cf->pd, fdata->cap_len, &err, &err_info)) {
3893 /* Read error. Report the error, and go back to the frame
3894 where we started. */
3895 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3896 cf_read_error_message(err, err_info), cf->filename);
3901 /* Does it match the search criterion? */
3902 if ((*match_function)(cf, fdata, criterion)) {
3904 break; /* found it! */
3908 if (fdata == start_fd) {
3909 /* We're back to the frame we were on originally, and that frame
3910 doesn't match the search filter. The search failed. */
3915 /* We're done scanning the packets; destroy the progress bar if it
3917 if (progbar != NULL)
3918 destroy_progress_dlg(progbar);
3921 if (new_fd != NULL) {
3922 #ifdef NEW_PACKET_LIST
3923 /* Find and select */
3924 row = new_packet_list_find_row_from_data(fdata, TRUE);
3926 /* We found a frame. Find what row it's in. */
3927 row = packet_list_find_row_from_data(new_fd);
3928 #endif /* NEW_PACKET_LIST */
3930 /* We didn't find a row even though we know that a frame
3931 * exists that satifies the search criteria. This means that the
3932 * frame isn't being displayed currently so we can't select it. */
3933 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3934 "%sEnd of capture exceeded!%s\n\n"
3935 "The capture file is probably not fully loaded.",
3936 simple_dialog_primary_start(), simple_dialog_primary_end());
3940 #ifndef NEW_PACKET_LIST
3941 /* Select that row, make it the focus row, and make it visible. */
3942 packet_list_set_selected_row(row);
3943 #endif /* NEW_PACKET_LIST */
3944 return TRUE; /* success */
3946 return FALSE; /* failure */
3950 cf_goto_frame(capture_file *cf, guint fnumber)
3955 for (fdata = cf->plist_start; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3958 if (fdata == NULL) {
3959 /* we didn't find a packet with that packet number */
3960 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3961 "There is no packet with the packet number %u.", fnumber);
3962 return FALSE; /* we failed to go to that packet */
3964 if (!fdata->flags.passed_dfilter) {
3965 /* that packet currently isn't displayed */
3966 /* XXX - add it to the set of displayed packets? */
3967 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3968 "The packet number %u isn't currently being displayed.", fnumber);
3969 return FALSE; /* we failed to go to that packet */
3972 #ifdef NEW_PACKET_LIST
3973 row = new_packet_list_find_row_from_data(fdata, TRUE);
3975 /* We found that packet, and it's currently being displayed.
3976 Find what row it's in. */
3977 row = packet_list_find_row_from_data(fdata);
3978 g_assert(row != -1);
3980 /* Select that row, make it the focus row, and make it visible. */
3981 packet_list_set_selected_row(row);
3982 #endif /* NEW_PACKET_LIST */
3983 return TRUE; /* we got to that packet */
3987 cf_goto_top_frame(capture_file *cf _U_)
3989 #ifdef NEW_PACKET_LIST
3990 /* Find and select */
3991 new_packet_list_select_first_row();
3995 frame_data *lowest_fdata = NULL;
3997 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3998 if (fdata->flags.passed_dfilter) {
3999 lowest_fdata = fdata;
4004 if (lowest_fdata == NULL) {
4008 /* We found that packet, and it's currently being displayed.
4009 Find what row it's in. */
4010 row = packet_list_find_row_from_data(lowest_fdata);
4011 g_assert(row != -1);
4013 /* Select that row, make it the focus row, and make it visible. */
4014 packet_list_set_selected_row(row);
4015 #endif /* NEW_PACKET_LIST */
4016 return TRUE; /* we got to that packet */
4020 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
4022 #ifdef NEW_PACKET_LIST
4023 /* Find and select */
4024 new_packet_list_select_last_row();
4028 frame_data *highest_fdata = NULL;
4030 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
4031 if (fdata->flags.passed_dfilter) {
4032 highest_fdata = fdata;
4036 if (highest_fdata == NULL) {
4040 /* We found that packet, and it's currently being displayed.
4041 Find what row it's in. */
4042 row = packet_list_find_row_from_data(highest_fdata);
4043 g_assert(row != -1);
4045 /* Select that row, make it the focus row, and make it visible. */
4046 packet_list_set_selected_row(row);
4047 #endif /* NEW_PACKET_LIST */
4048 return TRUE; /* we got to that packet */
4052 * Go to frame specified by currently selected protocol tree item.
4055 cf_goto_framenum(capture_file *cf)
4057 header_field_info *hfinfo;
4060 if (cf->finfo_selected) {
4061 hfinfo = cf->finfo_selected->hfinfo;
4063 if (hfinfo->type == FT_FRAMENUM) {
4064 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
4066 return cf_goto_frame(cf, framenum);
4073 /* Select the packet on a given row. */
4075 cf_select_packet(capture_file *cf, int row)
4081 /* Get the frame data struct pointer for this frame */
4082 #ifdef NEW_PACKET_LIST
4083 fdata = new_packet_list_get_row_data(row);
4085 fdata = (frame_data *)packet_list_get_row_data(row);
4088 if (fdata == NULL) {
4089 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
4090 the first entry is added to it by "real_insert_row()", that row
4091 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
4092 our version and the vanilla GTK+ version).
4094 This means that a "select-row" signal is emitted; this causes
4095 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
4098 "cf_select_packet()" fetches, above, the data associated with the
4099 row that was selected; however, as "gtk_clist_append()", which
4100 called "real_insert_row()", hasn't yet returned, we haven't yet
4101 associated any data with that row, so we get back a null pointer.
4103 We can't assume that there's only one frame in the frame list,
4104 either, as we may be filtering the display.
4106 We therefore assume that, if "row" is 0, i.e. the first row
4107 is being selected, and "cf->first_displayed" equals
4108 "cf->last_displayed", i.e. there's only one frame being
4109 displayed, that frame is the frame we want.
4111 This means we have to set "cf->first_displayed" and
4112 "cf->last_displayed" before adding the row to the
4113 GtkCList; see the comment in "add_packet_to_packet_list()". */
4115 if (row == 0 && cf->first_displayed == cf->last_displayed)
4116 fdata = cf->first_displayed;
4119 /* If fdata _still_ isn't set simply give up. */
4120 if (fdata == NULL) {
4124 /* Get the data in that frame. */
4125 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
4126 cf->pd, fdata->cap_len, &err, &err_info)) {
4127 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4128 cf_read_error_message(err, err_info), cf->filename);
4132 /* Record that this frame is the current frame. */
4133 cf->current_frame = fdata;
4134 cf->current_row = row;
4136 /* Create the logical protocol tree. */
4137 if (cf->edt != NULL)
4138 epan_dissect_free(cf->edt);
4140 /* We don't need the columns here. */
4141 cf->edt = epan_dissect_new(TRUE, TRUE);
4143 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4146 dfilter_macro_build_ftv_cache(cf->edt->tree);
4148 cf_callback_invoke(cf_cb_packet_selected, cf);
4151 /* Unselect the selected packet, if any. */
4153 cf_unselect_packet(capture_file *cf)
4155 /* Destroy the epan_dissect_t for the unselected packet. */
4156 if (cf->edt != NULL) {
4157 epan_dissect_free(cf->edt);
4161 /* No packet is selected. */
4162 cf->current_frame = NULL;
4163 cf->current_row = 0;
4165 cf_callback_invoke(cf_cb_packet_unselected, cf);
4167 /* No protocol tree means no selected field. */
4168 cf_unselect_field(cf);
4171 /* Unset the selected protocol tree field, if any. */
4173 cf_unselect_field(capture_file *cf)
4175 cf->finfo_selected = NULL;
4177 cf_callback_invoke(cf_cb_field_unselected, cf);
4181 * Mark a particular frame.
4184 cf_mark_frame(capture_file *cf, frame_data *frame)
4186 if (! frame->flags.marked) {
4187 frame->flags.marked = TRUE;
4188 if (cf->count > cf->marked_count)
4194 * Unmark a particular frame.
4197 cf_unmark_frame(capture_file *cf, frame_data *frame)
4199 if (frame->flags.marked) {
4200 frame->flags.marked = FALSE;
4201 if (cf->marked_count > 0)
4209 } save_callback_args_t;
4212 * Save a capture to a file, in a particular format, saving either
4213 * all packets, all currently-displayed packets, or all marked packets.
4215 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4216 * up a message box for the failure.
4219 save_packet(capture_file *cf _U_, frame_data *fdata,
4220 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4223 save_callback_args_t *args = argsp;
4224 struct wtap_pkthdr hdr;
4227 /* init the wtap header for saving */
4228 hdr.ts.secs = fdata->abs_ts.secs;
4229 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4230 hdr.caplen = fdata->cap_len;
4231 hdr.len = fdata->pkt_len;
4232 hdr.pkt_encap = fdata->lnk_t;
4234 /* and save the packet */
4235 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4236 cf_write_failure_alert_box(args->fname, err);
4243 * Can this capture file be saved in any format except by copying the raw data?
4246 cf_can_save_as(capture_file *cf)
4250 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4251 /* To save a file with Wiretap, Wiretap has to handle that format,
4252 and its code to handle that format must be able to write a file
4253 with this file's encapsulation type. */
4254 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4255 /* OK, we can write it out in this type. */
4260 /* No, we couldn't save it in any format. */
4265 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4267 gchar *from_filename;
4271 save_callback_args_t callback_args;
4273 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
4275 /* don't write over an existing file. */
4276 /* this should've been already checked by our caller, just to be sure... */
4277 if (file_exists(fname)) {
4278 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4279 "%sCapture file: \"%s\" already exists!%s\n\n"
4280 "Please choose a different filename.",
4281 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4285 packet_range_process_init(range);
4288 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4289 /* We're not filtering packets, and we're saving it in the format
4290 it's already in, so we can just move or copy the raw data. */
4292 if (cf->is_tempfile) {
4293 /* The file being saved is a temporary file from a live
4294 capture, so it doesn't need to stay around under that name;
4295 first, try renaming the capture buffer file to the new name. */
4297 if (ws_rename(cf->filename, fname) == 0) {
4298 /* That succeeded - there's no need to copy the source file. */
4299 from_filename = NULL;
4302 if (errno == EXDEV) {
4303 /* They're on different file systems, so we have to copy the
4306 from_filename = cf->filename;
4308 /* The rename failed, but not because they're on different
4309 file systems - put up an error message. (Or should we
4310 just punt and try to copy? The only reason why I'd
4311 expect the rename to fail and the copy to succeed would
4312 be if we didn't have permission to remove the file from
4313 the temporary directory, and that might be fixable - but
4314 is it worth requiring the user to go off and fix it?) */
4315 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4316 file_rename_error_message(errno), fname);
4322 from_filename = cf->filename;
4325 /* It's a permanent file, so we should copy it, and not remove the
4328 from_filename = cf->filename;
4332 /* Copy the file, if we haven't moved it. */
4333 if (!copy_file_binary_mode(from_filename, fname))
4337 /* Either we're filtering packets, or we're saving in a different
4338 format; we can't do that by copying or moving the capture file,
4339 we have to do it by writing the packets out in Wiretap. */
4340 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4343 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4347 /* XXX - we let the user save a subset of the packets.
4349 If we do that, should we make that file the current file? If so,
4350 it means we can no longer get at the other packets. What does
4353 /* Iterate through the list of packets, processing the packets we were
4356 XXX - we've already called "packet_range_process_init(range)", but
4357 "process_specified_packets()" will do it again. Fortunately,
4358 that's harmless in this case, as we haven't done anything to
4359 "range" since we initialized it. */
4360 callback_args.pdh = pdh;
4361 callback_args.fname = fname;
4362 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4363 TRUE, save_packet, &callback_args)) {
4366 /* Completed successfully. */
4370 /* The user decided to abort the saving.
4371 XXX - remove the output file? */
4375 /* Error while saving. */
4376 wtap_dump_close(pdh, &err);
4380 if (!wtap_dump_close(pdh, &err)) {
4381 cf_close_failure_alert_box(fname, err);
4386 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
4388 if (packet_range_process_all(range)) {
4389 /* We saved the entire capture, not just some packets from it.
4390 Open and read the file we saved it to.
4392 XXX - this is somewhat of a waste; we already have the
4393 packets, all this gets us is updated file type information
4394 (which we could just stuff into "cf"), and having the new
4395 file be the one we have opened and from which we're reading
4396 the data, and it means we have to spend time opening and
4397 reading the file, which could be a significant amount of
4398 time if the file is large. */
4399 cf->user_saved = TRUE;
4401 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4402 /* XXX - report errors if this fails?
4403 What should we return if it fails or is aborted? */
4404 switch (cf_read(cf)) {
4408 /* Just because we got an error, that doesn't mean we were unable
4409 to read any of the file; we handle what we could get from the
4413 case CF_READ_ABORTED:
4414 /* The user bailed out of re-reading the capture file; the
4415 capture file has been closed - just return (without
4416 changing any menu settings; "cf_close()" set them
4417 correctly for the "no capture file open" state). */
4420 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4426 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4431 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4432 gboolean for_writing, int file_type)
4435 /* Wiretap error. */
4438 case WTAP_ERR_NOT_REGULAR_FILE:
4439 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4440 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4444 case WTAP_ERR_RANDOM_OPEN_PIPE:
4445 /* Seen only when opening a capture file for reading. */
4446 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4447 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4451 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4452 /* Seen only when opening a capture file for reading. */
4453 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4454 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4458 case WTAP_ERR_UNSUPPORTED:
4459 /* Seen only when opening a capture file for reading. */
4460 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4461 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4463 filename, err_info);
4467 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4468 /* Seen only when opening a capture file for writing. */
4469 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4470 "The file \"%s\" is a pipe, and %s capture files can't be "
4471 "written to a pipe.",
4472 filename, wtap_file_type_string(file_type));
4475 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4476 /* Seen only when opening a capture file for writing. */
4477 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4478 "Wireshark doesn't support writing capture files in that format.");
4481 case WTAP_ERR_UNSUPPORTED_ENCAP:
4483 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4484 "Wireshark can't save this capture in that format.");
4486 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4487 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4489 filename, err_info);
4494 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4496 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4497 "Wireshark can't save this capture in that format.");
4499 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4500 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4505 case WTAP_ERR_BAD_RECORD:
4506 /* Seen only when opening a capture file for reading. */
4507 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4508 "The file \"%s\" appears to be damaged or corrupt.\n"
4510 filename, err_info);
4514 case WTAP_ERR_CANT_OPEN:
4516 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4517 "The file \"%s\" could not be created for some unknown reason.",
4520 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4521 "The file \"%s\" could not be opened for some unknown reason.",
4526 case WTAP_ERR_SHORT_READ:
4527 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4528 "The file \"%s\" appears to have been cut short"
4529 " in the middle of a packet or other data.",
4533 case WTAP_ERR_SHORT_WRITE:
4534 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4535 "A full header couldn't be written to the file \"%s\".",
4539 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4540 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4541 "Gzip compression not supported by this file type.");
4545 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4546 "The file \"%s\" could not be %s: %s.",
4548 for_writing ? "created" : "opened",
4549 wtap_strerror(err));
4554 open_failure_alert_box(filename, err, for_writing);
4559 file_rename_error_message(int err)
4562 static char errmsg_errno[1024+1];
4567 errmsg = "The path to the file \"%s\" doesn't exist.";
4571 errmsg = "You don't have permission to move the capture file to \"%s\".";
4575 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4576 "The file \"%%s\" could not be moved: %s.",
4577 wtap_strerror(err));
4578 errmsg = errmsg_errno;
4585 cf_read_error_message(int err, gchar *err_info)
4587 static char errmsg_errno[1024+1];
4591 case WTAP_ERR_UNSUPPORTED_ENCAP:
4592 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4593 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4598 case WTAP_ERR_BAD_RECORD:
4599 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4600 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4601 wtap_strerror(err), err_info);
4606 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4607 "An error occurred while reading from the file \"%%s\": %s.",
4608 wtap_strerror(err));
4611 return errmsg_errno;
4615 cf_write_failure_alert_box(const char *filename, int err)
4618 /* Wiretap error. */
4619 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4620 "An error occurred while writing to the file \"%s\": %s.",
4621 filename, wtap_strerror(err));
4624 write_failure_alert_box(filename, err);
4628 /* Check for write errors - if the file is being written to an NFS server,
4629 a write error may not show up until the file is closed, as NFS clients
4630 might not send writes to the server until the "write()" call finishes,
4631 so that the write may fail on the server but the "write()" may succeed. */
4633 cf_close_failure_alert_box(const char *filename, int err)
4636 /* Wiretap error. */
4639 case WTAP_ERR_CANT_CLOSE:
4640 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4641 "The file \"%s\" couldn't be closed for some unknown reason.",
4645 case WTAP_ERR_SHORT_WRITE:
4646 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4647 "Not all the packets could be written to the file \"%s\".",
4652 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4653 "An error occurred while closing the file \"%s\": %s.",
4654 filename, wtap_strerror(err));
4659 We assume that a close error from the OS is really a write error. */
4660 write_failure_alert_box(filename, err);
4664 /* Reload the current capture file. */
4666 cf_reload(capture_file *cf) {
4668 gboolean is_tempfile;
4671 /* If the file could be opened, "cf_open()" calls "cf_close()"
4672 to get rid of state for the old capture file before filling in state
4673 for the new capture file. "cf_close()" will remove the file if
4674 it's a temporary file; we don't want that to happen (for one thing,
4675 it'd prevent subsequent reopens from working). Remember whether it's
4676 a temporary file, mark it as not being a temporary file, and then
4677 reopen it as the type of file it was.
4679 Also, "cf_close()" will free "cf->filename", so we must make
4680 a copy of it first. */
4681 filename = g_strdup(cf->filename);
4682 is_tempfile = cf->is_tempfile;
4683 cf->is_tempfile = FALSE;
4684 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4685 switch (cf_read(cf)) {
4689 /* Just because we got an error, that doesn't mean we were unable
4690 to read any of the file; we handle what we could get from the
4694 case CF_READ_ABORTED:
4695 /* The user bailed out of re-reading the capture file; the
4696 capture file has been closed - just free the capture file name
4697 string and return (without changing the last containing
4703 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4704 Instead, the file was left open, so we should restore "cf->is_tempfile"
4707 XXX - change the menu? Presumably "cf_open()" will do that;
4708 make sure it does! */
4709 cf->is_tempfile = is_tempfile;
4711 /* "cf_open()" made a copy of the file name we handed it, so
4712 we should free up our copy. */