6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
61 #include "alert_box.h"
62 #include "simple_dialog.h"
63 #include "progress_dlg.h"
65 #include <epan/prefs.h>
66 #include <epan/dfilter/dfilter.h>
67 #include <epan/epan_dissect.h>
69 #include <epan/dissectors/packet-data.h>
70 #include <epan/dissectors/packet-ber.h>
71 #include <epan/timestamp.h>
72 #include <epan/dfilter/dfilter-macro.h>
73 #include <wsutil/file_util.h>
74 #include <epan/strutil.h>
77 gboolean auto_scroll_live;
80 static guint32 cum_bytes;
81 static nstime_t first_ts;
82 static nstime_t prev_dis_ts;
83 static nstime_t prev_cap_ts;
85 static gulong computed_elapsed;
87 static void cf_reset_state(capture_file *cf);
89 static int read_packet(capture_file *cf, dfilter_t *dfcode,
90 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
92 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
93 gboolean refilter, gboolean redissect);
95 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
97 static void match_subtree_text(proto_node *node, gpointer data);
98 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
100 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
102 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
104 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
106 static gboolean match_binary(capture_file *cf, frame_data *fdata,
108 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
110 static gboolean find_packet(capture_file *cf,
111 gboolean (*match_function)(capture_file *, frame_data *, void *),
114 static void cf_open_failure_alert_box(const char *filename, int err,
115 gchar *err_info, gboolean for_writing,
117 static const char *file_rename_error_message(int err);
118 static void cf_write_failure_alert_box(const char *filename, int err);
119 static void cf_close_failure_alert_box(const char *filename, int err);
120 #ifdef NEW_PACKET_LIST
121 static void ref_time_packets(capture_file *cf);
123 /* Update the progress bar this many times when reading a file. */
124 #define N_PROGBAR_UPDATES 100
125 /* We read around 200k/100ms domt update the progress bar more often than that */
126 #define MIN_QUANTUM 200000
127 #define MIN_NUMBER_OF_PACKET 1500
129 /* Number of "frame_data" structures per memory chunk.
130 XXX - is this the right number? */
131 #define FRAME_DATA_CHUNK_SIZE 1024
134 /* this callback mechanism should possibly be replaced by the g_signal_...() stuff (if I only would know how :-) */
136 cf_callback_t cb_fct;
138 } cf_callback_data_t;
140 static GList *cf_callbacks = NULL;
143 cf_callback_invoke(int event, gpointer data)
145 cf_callback_data_t *cb;
146 GList *cb_item = cf_callbacks;
148 /* there should be at least one interested */
149 g_assert(cb_item != NULL);
151 while(cb_item != NULL) {
153 cb->cb_fct(event, data, cb->user_data);
154 cb_item = g_list_next(cb_item);
160 cf_callback_add(cf_callback_t func, gpointer user_data)
162 cf_callback_data_t *cb;
164 cb = g_malloc(sizeof(cf_callback_data_t));
166 cb->user_data = user_data;
168 cf_callbacks = g_list_append(cf_callbacks, cb);
172 cf_callback_remove(cf_callback_t func)
174 cf_callback_data_t *cb;
175 GList *cb_item = cf_callbacks;
177 while(cb_item != NULL) {
179 if(cb->cb_fct == func) {
180 cf_callbacks = g_list_remove(cf_callbacks, cb);
184 cb_item = g_list_next(cb_item);
187 g_assert_not_reached();
191 cf_timestamp_auto_precision(capture_file *cf)
193 #ifdef NEW_PACKET_LIST
196 int prec = timestamp_get_precision();
199 /* don't try to get the file's precision if none is opened */
200 if(cf->state == FILE_CLOSED) {
204 /* if we are in auto mode, set precision of current file */
205 if(prec == TS_PREC_AUTO ||
206 prec == TS_PREC_AUTO_SEC ||
207 prec == TS_PREC_AUTO_DSEC ||
208 prec == TS_PREC_AUTO_CSEC ||
209 prec == TS_PREC_AUTO_MSEC ||
210 prec == TS_PREC_AUTO_USEC ||
211 prec == TS_PREC_AUTO_NSEC)
213 switch(wtap_file_tsprecision(cf->wth)) {
214 case(WTAP_FILE_TSPREC_SEC):
215 timestamp_set_precision(TS_PREC_AUTO_SEC);
217 case(WTAP_FILE_TSPREC_DSEC):
218 timestamp_set_precision(TS_PREC_AUTO_DSEC);
220 case(WTAP_FILE_TSPREC_CSEC):
221 timestamp_set_precision(TS_PREC_AUTO_CSEC);
223 case(WTAP_FILE_TSPREC_MSEC):
224 timestamp_set_precision(TS_PREC_AUTO_MSEC);
226 case(WTAP_FILE_TSPREC_USEC):
227 timestamp_set_precision(TS_PREC_AUTO_USEC);
229 case(WTAP_FILE_TSPREC_NSEC):
230 timestamp_set_precision(TS_PREC_AUTO_NSEC);
233 g_assert_not_reached();
236 #ifdef NEW_PACKET_LIST
237 /* Set the column widths of those columns that show the time in
238 "command-line-specified" format. */
239 for (i = 0; i < cf->cinfo.num_cols; i++) {
240 if (col_has_time_fmt(&cf->cinfo, i)) {
241 new_packet_list_resize_column(i);
248 cf_get_computed_elapsed(void)
250 return computed_elapsed;
253 static void reset_elapsed(void)
255 computed_elapsed = 0;
258 static void compute_elapsed(GTimeVal *start_time)
263 g_get_current_time(&time_now);
265 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
266 time_now.tv_usec - start_time->tv_usec;
268 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
272 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
277 wth = wtap_open_offline(fname, err, &err_info, TRUE);
281 /* The open succeeded. Close whatever capture file we had open,
282 and fill in the information for this file. */
285 /* Cleanup all data structures used for dissection. */
286 cleanup_dissection();
287 /* Initialize all data structures used for dissection. */
290 /* We're about to start reading the file. */
291 cf->state = FILE_READ_IN_PROGRESS;
296 /* Set the file name because we need it to set the follow stream filter.
297 XXX - is that still true? We need it for other reasons, though,
299 cf->filename = g_strdup(fname);
301 /* Indicate whether it's a permanent or temporary file. */
302 cf->is_tempfile = is_tempfile;
304 /* If it's a temporary capture buffer file, mark it as not saved. */
305 cf->user_saved = !is_tempfile;
309 cf->cd_t = wtap_file_type(cf->wth);
311 cf->displayed_count = 0;
312 cf->marked_count = 0;
313 cf->drops_known = FALSE;
315 cf->snap = wtap_snapshot_length(cf->wth);
317 /* Snapshot length not known. */
318 cf->has_snap = FALSE;
319 cf->snap = WTAP_MAX_PACKET_SIZE;
323 nstime_set_zero(&cf->elapsed_time);
324 nstime_set_unset(&first_ts);
325 nstime_set_unset(&prev_dis_ts);
326 nstime_set_unset(&prev_cap_ts);
329 #if GLIB_CHECK_VERSION(2,10,0)
331 /* memory chunks have been deprecated in favor of the slice allocator,
332 * which has been added in 2.10
334 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
336 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
338 g_assert(cf->plist_chunk);
341 #ifdef NEW_PACKET_LIST
342 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
343 cf_timestamp_auto_precision(cf);
345 new_packet_list_queue_draw();
347 /* change the time formats now, as we might have a new precision */
348 cf_change_time_formats(cf);
350 fileset_file_opened(fname);
352 if(cf->cd_t == WTAP_FILE_BER) {
353 /* tell the BER dissector the file name */
354 ber_set_filename(cf->filename);
360 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
366 * Reset the state for the currently closed file, but don't do the
367 * UI callbacks; this is for use in "cf_open()", where we don't
368 * want the UI to go from "file open" to "file closed" back to
369 * "file open", we want it to go from "old file open" to "new file
370 * open and being read".
373 cf_reset_state(capture_file *cf)
375 /* Die if we're in the middle of reading a file. */
376 g_assert(cf->state != FILE_READ_IN_PROGRESS);
382 /* We have no file open... */
383 if (cf->filename != NULL) {
384 /* If it's a temporary file, remove it. */
386 ws_unlink(cf->filename);
387 g_free(cf->filename);
390 /* ...which means we have nothing to save. */
391 cf->user_saved = FALSE;
393 #if GLIB_CHECK_VERSION(2,10,0)
394 if (cf->plist_start != NULL)
395 g_slice_free_chain(frame_data, cf->plist_start, next);
397 /* memory chunks have been deprecated in favor of the slice allocator,
398 * which has been added in 2.10
400 if (cf->plist_chunk != NULL) {
401 g_mem_chunk_destroy(cf->plist_chunk);
402 cf->plist_chunk = NULL;
405 dfilter_free(cf->rfcode);
407 cf->plist_start = NULL;
408 cf->plist_end = NULL;
409 cf_unselect_packet(cf); /* nothing to select */
410 cf->first_displayed = NULL;
411 cf->last_displayed = NULL;
413 /* No frame selected, no field in that frame selected. */
414 cf->current_frame = NULL;
416 cf->finfo_selected = NULL;
418 /* Clear the packet list. */
419 #ifdef NEW_PACKET_LIST
420 new_packet_list_freeze();
421 new_packet_list_clear();
422 new_packet_list_thaw();
424 packet_list_freeze();
431 nstime_set_zero(&cf->elapsed_time);
433 reset_tap_listeners();
435 /* We have no file open. */
436 cf->state = FILE_CLOSED;
438 fileset_file_closed();
441 /* Reset everything to a pristine state */
443 cf_close(capture_file *cf)
445 /* do GUI things even if file is already closed,
446 * e.g. to cleanup things if a capture couldn't be started */
447 cf_callback_invoke(cf_cb_file_closing, cf);
449 /* close things, if not already closed before */
450 if(cf->state != FILE_CLOSED) {
451 color_filters_cleanup();
453 cleanup_dissection();
456 cf_callback_invoke(cf_cb_file_closed, cf);
459 /* an out of memory exception occured, wait for a user button press to exit */
460 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
465 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
469 progbar_val = (gfloat) file_pos / (gfloat) size;
470 if (progbar_val > 1.0) {
471 /* The file probably grew while we were reading it.
472 Update file size, and try again. */
473 size = wtap_file_size(cf->wth, NULL);
475 progbar_val = (gfloat) file_pos / (gfloat) size;
476 /* If it's still > 1, either "wtap_file_size()" failed (in which
477 case there's not much we can do about it), or the file
478 *shrank* (in which case there's not much we can do about
479 it); just clip the progress value at 1.0. */
480 if (progbar_val > 1.0f)
487 cf_read(capture_file *cf)
491 const gchar *name_ptr;
493 char errmsg_errno[1024+1];
495 progdlg_t *volatile progbar = NULL;
497 volatile gint64 size;
498 volatile float progbar_val;
500 gchar status_str[100];
501 volatile gint64 progbar_nextstep;
502 volatile gint64 progbar_quantum;
504 gboolean filtering_tap_listeners;
506 volatile int count = 0;
508 volatile int displayed_once = 0;
512 /* Compile the current display filter.
513 * We assume this will not fail since cf->dfilter is only set in
514 * cf_filter IFF the filter was valid.
516 compiled = dfilter_compile(cf->dfilter, &dfcode);
517 g_assert(!cf->dfilter || (compiled && dfcode));
519 /* Do we have any tap listeners with filters? */
520 filtering_tap_listeners = have_filtering_tap_listeners();
522 /* Get the union of the flags for all tap listeners. */
523 tap_flags = union_of_tap_listener_flags();
525 reset_tap_listeners();
527 cf_callback_invoke(cf_cb_file_read_start, cf);
529 name_ptr = get_basename(cf->filename);
531 /* Find the size of the file. */
532 size = wtap_file_size(cf->wth, NULL);
534 /* Update the progress bar when it gets to this value. */
535 progbar_nextstep = 0;
536 /* When we reach the value that triggers a progress bar update,
537 bump that value by this amount. */
539 progbar_quantum = size/N_PROGBAR_UPDATES;
540 if (progbar_quantum < MIN_QUANTUM)
541 progbar_quantum = MIN_QUANTUM;
544 /* Progress so far. */
547 #ifdef NEW_PACKET_LIST
548 new_packet_list_freeze();
550 packet_list_freeze();
554 g_get_current_time(&start_time);
556 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
559 /* Create the progress bar if necessary.
560 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
562 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
563 progbar_val = calc_progbar_val( cf, size, data_offset);
564 progbar = delayed_create_progress_dlg("Loading", name_ptr,
565 TRUE, &stop_flag, &start_time, progbar_val);
568 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
569 when we update it, we have to run the GTK+ main loop to get it
570 to repaint what's pending, and doing so may involve an "ioctl()"
571 to see if there's any pending input from an X server, and doing
572 that for every packet can be costly, especially on a big file. */
573 if (data_offset >= progbar_nextstep) {
574 if (progbar != NULL) {
575 progbar_val = calc_progbar_val( cf, size, data_offset);
576 /* update the packet lists content on the first run or frequently on very large files */
577 /* (on smaller files the display update takes longer than reading the file) */
579 if (progbar_quantum > 500000 || displayed_once == 0) {
580 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
582 #ifdef NEW_PACKET_LIST
583 new_packet_list_thaw();
584 if (auto_scroll_live)
585 new_packet_list_moveto_end();
586 new_packet_list_freeze();
589 if (auto_scroll_live)
590 packet_list_moveto_end();
591 packet_list_freeze();
592 #endif /* NEW_PACKET_LIST */
595 #endif /* HAVE_LIBPCAP */
596 g_snprintf(status_str, sizeof(status_str),
597 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
598 data_offset / 1024, size / 1024);
599 update_progress_dlg(progbar, progbar_val, status_str);
601 progbar_nextstep += progbar_quantum;
606 /* Well, the user decided to abort the read. He/She will be warned and
607 it might be enough for him/her to work with the already loaded
609 This is especially true for very large capture files, where you don't
610 want to wait loading the whole file (which may last minutes or even
611 hours even on fast machines) just to see that it was the wrong file. */
615 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
617 CATCH(OutOfMemoryError) {
620 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
621 "%sOut Of Memory!%s\n"
623 "Sorry, but Wireshark has to terminate now!\n"
625 "Some infos / workarounds can be found at:\n"
626 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
627 simple_dialog_primary_start(), simple_dialog_primary_end());
628 /* we have to terminate, as we cannot recover from the memory error */
629 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
631 main_window_update();
632 /* XXX - how to avoid a busy wait? */
640 /* Cleanup and release all dfilter resources */
642 dfilter_free(dfcode);
645 /* We're done reading the file; destroy the progress bar if it was created. */
647 destroy_progress_dlg(progbar);
649 /* We're done reading sequentially through the file. */
650 cf->state = FILE_READ_DONE;
652 /* Close the sequential I/O side, to free up memory it requires. */
653 wtap_sequential_close(cf->wth);
655 /* Allow the protocol dissectors to free up memory that they
656 * don't need after the sequential run-through of the packets. */
657 postseq_cleanup_all_protocols();
659 /* compute the time it took to load the file */
660 compute_elapsed(&start_time);
662 /* Set the file encapsulation type now; we don't know what it is until
663 we've looked at all the packets, as we don't know until then whether
664 there's more than one type (and thus whether it's
665 WTAP_ENCAP_PER_PACKET). */
666 cf->lnk_t = wtap_file_encap(cf->wth);
668 cf->current_frame = cf->first_displayed;
671 #ifdef NEW_PACKET_LIST
672 new_packet_list_thaw();
677 cf_callback_invoke(cf_cb_file_read_finished, cf);
679 /* If we have any displayed packets to select, select the first of those
680 packets by making the first row the selected row. */
681 if (cf->first_displayed != NULL){
682 #ifdef NEW_PACKET_LIST
683 new_packet_list_select_first_row();
685 packet_list_select_row(0);
686 #endif /* NEW_PACKET_LIST */
690 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
691 "%sFile loading was cancelled!%s\n"
693 "The remaining packets in the file were discarded.\n"
695 "As a lot of packets from the original file will be missing,\n"
696 "remember to be careful when saving the current content to a file.\n",
697 simple_dialog_primary_start(), simple_dialog_primary_end());
698 return CF_READ_ERROR;
702 /* Put up a message box noting that the read failed somewhere along
703 the line. Don't throw out the stuff we managed to read, though,
707 case WTAP_ERR_UNSUPPORTED_ENCAP:
708 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
709 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
712 errmsg = errmsg_errno;
715 case WTAP_ERR_CANT_READ:
716 errmsg = "An attempt to read from the capture file failed for"
717 " some unknown reason.";
720 case WTAP_ERR_SHORT_READ:
721 errmsg = "The capture file appears to have been cut short"
722 " in the middle of a packet.";
725 case WTAP_ERR_BAD_RECORD:
726 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
727 "The capture file appears to be damaged or corrupt.\n(%s)",
730 errmsg = errmsg_errno;
734 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
735 "An error occurred while reading the"
736 " capture file: %s.", wtap_strerror(err));
737 errmsg = errmsg_errno;
740 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
741 return CF_READ_ERROR;
748 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
750 cf_status_t cf_status;
752 cf_status = cf_open(cf, fname, is_tempfile, err);
757 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
759 gint64 data_offset = 0;
761 volatile int newly_displayed_packets = 0;
763 gboolean filtering_tap_listeners;
765 volatile gboolean visible = FALSE;
768 /* Compile the current display filter.
769 * We assume this will not fail since cf->dfilter is only set in
770 * cf_filter IFF the filter was valid.
772 compiled = dfilter_compile(cf->dfilter, &dfcode);
773 g_assert(!cf->dfilter || (compiled && dfcode));
775 /* Do we have any tap listeners with filters? */
776 filtering_tap_listeners = have_filtering_tap_listeners();
778 /* Get the union of the flags for all tap listeners. */
779 tap_flags = union_of_tap_listener_flags();
783 #ifdef NEW_PACKET_LIST
784 new_packet_list_check_end();
785 new_packet_list_freeze();
787 packet_list_check_end();
788 packet_list_freeze();
791 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
793 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
794 if (cf->state == FILE_READ_ABORTED) {
795 /* Well, the user decided to exit Wireshark. Break out of the
796 loop, and let the code below (which is called even if there
797 aren't any packets left to read) exit. */
801 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
802 data_offset) != -1) {
804 newly_displayed_packets++;
809 CATCH(OutOfMemoryError) {
812 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
813 "%sOut Of Memory!%s\n"
815 "Sorry, but Wireshark has to terminate now!\n"
817 "The capture file is not lost, it can be found at:\n"
820 "Some infos / workarounds can be found at:\n"
821 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
822 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
823 /* we have to terminate, as we cannot recover from the memory error */
824 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
826 main_window_update();
827 /* XXX - how to avoid a busy wait? */
830 #ifdef NEW_PACKET_LIST
831 new_packet_list_thaw();
835 return CF_READ_ABORTED;
841 /* Cleanup and release all dfilter resources */
843 dfilter_free(dfcode);
846 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
847 cf->count, cf->state, *err);*/
849 #ifdef NEW_PACKET_LIST
850 new_packet_list_thaw();
851 /* With the new packet list the first packet
852 * isn't automatically selected.
854 if(!cf->current_frame)
855 new_packet_list_select_first_row();
857 /* XXX - this causes "flickering" of the list */
861 /* moving to the end of the packet list - if the user requested so and
862 we have some new packets. */
863 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
864 #ifdef NEW_PACKET_LIST
866 new_packet_list_moveto_end();
868 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
869 packet_list_thaw() is done, see bugzilla 1188 */
870 /* XXX - this cheats and looks inside the packet list to find the final
872 packet_list_moveto_end();
873 #endif /* NEW_PACKET_LIST */
875 if (cf->state == FILE_READ_ABORTED) {
876 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
877 so that our caller can kill off the capture child process;
878 this will cause an EOF on the pipe from the child, so
879 "cf_finish_tail()" will be called, and it will clean up
881 return CF_READ_ABORTED;
882 } else if (*err != 0) {
883 /* We got an error reading the capture file.
884 XXX - pop up a dialog box instead? */
885 g_warning("Error \"%s\" while reading: \"%s\"\n",
886 wtap_strerror(*err), cf->filename);
888 return CF_READ_ERROR;
894 cf_finish_tail(capture_file *cf, int *err)
899 gboolean filtering_tap_listeners;
903 /* Compile the current display filter.
904 * We assume this will not fail since cf->dfilter is only set in
905 * cf_filter IFF the filter was valid.
907 compiled = dfilter_compile(cf->dfilter, &dfcode);
908 g_assert(!cf->dfilter || (compiled && dfcode));
910 /* Do we have any tap listeners with filters? */
911 filtering_tap_listeners = have_filtering_tap_listeners();
913 /* Get the union of the flags for all tap listeners. */
914 tap_flags = union_of_tap_listener_flags();
916 if(cf->wth == NULL) {
918 return CF_READ_ERROR;
921 #ifdef NEW_PACKET_LIST
922 new_packet_list_check_end();
923 new_packet_list_freeze();
925 packet_list_check_end();
926 packet_list_freeze();
929 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
930 if (cf->state == FILE_READ_ABORTED) {
931 /* Well, the user decided to abort the read. Break out of the
932 loop, and let the code below (which is called even if there
933 aren't any packets left to read) exit. */
936 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
939 /* Cleanup and release all dfilter resources */
941 dfilter_free(dfcode);
944 #ifdef NEW_PACKET_LIST
945 new_packet_list_thaw();
950 if (cf->state == FILE_READ_ABORTED) {
951 /* Well, the user decided to abort the read. We're only called
952 when the child capture process closes the pipe to us (meaning
953 it's probably exited), so we can just close the capture
954 file; we return CF_READ_ABORTED so our caller can do whatever
955 is appropriate when that happens. */
957 return CF_READ_ABORTED;
960 if (auto_scroll_live && cf->plist_end != NULL)
961 #ifdef NEW_PACKET_LIST
962 new_packet_list_moveto_end();
964 /* XXX - this cheats and looks inside the packet list to find the final
966 packet_list_moveto_end();
969 /* We're done reading sequentially through the file. */
970 cf->state = FILE_READ_DONE;
972 /* We're done reading sequentially through the file; close the
973 sequential I/O side, to free up memory it requires. */
974 wtap_sequential_close(cf->wth);
976 /* Allow the protocol dissectors to free up memory that they
977 * don't need after the sequential run-through of the packets. */
978 postseq_cleanup_all_protocols();
980 /* Set the file encapsulation type now; we don't know what it is until
981 we've looked at all the packets, as we don't know until then whether
982 there's more than one type (and thus whether it's
983 WTAP_ENCAP_PER_PACKET). */
984 cf->lnk_t = wtap_file_encap(cf->wth);
987 /* We got an error reading the capture file.
988 XXX - pop up a dialog box? */
989 return CF_READ_ERROR;
994 #endif /* HAVE_LIBPCAP */
997 cf_get_display_name(capture_file *cf)
999 const gchar *displayname;
1001 /* Return a name to use in displays */
1002 if (!cf->is_tempfile) {
1003 /* Get the last component of the file name, and use that. */
1005 displayname = get_basename(cf->filename);
1007 displayname="(No file)";
1010 /* The file we read is a temporary file from a live capture;
1011 we don't mention its name. */
1012 displayname = "(Untitled)";
1017 /* XXX - use a macro instead? */
1019 cf_get_packet_count(capture_file *cf)
1024 /* XXX - use a macro instead? */
1026 cf_set_packet_count(capture_file *cf, int packet_count)
1028 cf->count = packet_count;
1031 /* XXX - use a macro instead? */
1033 cf_is_tempfile(capture_file *cf)
1035 return cf->is_tempfile;
1038 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1040 cf->is_tempfile = is_tempfile;
1044 /* XXX - use a macro instead? */
1045 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1047 cf->drops_known = drops_known;
1050 /* XXX - use a macro instead? */
1051 void cf_set_drops(capture_file *cf, guint32 drops)
1056 /* XXX - use a macro instead? */
1057 gboolean cf_get_drops_known(capture_file *cf)
1059 return cf->drops_known;
1062 /* XXX - use a macro instead? */
1063 guint32 cf_get_drops(capture_file *cf)
1068 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1070 cf->rfcode = rfcode;
1073 #ifdef NEW_PACKET_LIST
1075 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1076 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1078 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1080 gboolean add_to_packet_list)
1082 gboolean create_proto_tree = FALSE;
1087 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1089 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1090 &first_ts, &prev_dis_ts, &prev_cap_ts);
1093 + we have a display filter and are re-applying it;
1094 + we have tap listeners with filters;
1095 + we have tap listeners that require a protocol tree;
1097 allocate a protocol tree root node, so that we'll construct
1098 a protocol tree against which a filter expression can be
1100 if ((dfcode != NULL && refilter) ||
1101 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1102 create_proto_tree = TRUE;
1104 /* Dissect the frame. */
1105 epan_dissect_init(&edt, create_proto_tree, FALSE);
1107 if (dfcode != NULL && refilter) {
1108 epan_dissect_prime_dfilter(&edt, dfcode);
1111 tap_queue_init(&edt);
1112 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1113 tap_push_tapped_queue(&edt);
1115 /* If we have a display filter, apply it if we're refiltering, otherwise
1116 leave the "passed_dfilter" flag alone.
1118 If we don't have a display filter, set "passed_dfilter" to 1. */
1119 if (dfcode != NULL) {
1121 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1124 fdata->flags.passed_dfilter = 1;
1126 if (add_to_packet_list) {
1127 /* We fill the needed columns from new_packet_list */
1128 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1131 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1133 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1135 /* If we haven't yet seen the first frame, this is it.
1137 XXX - we must do this before we add the row to the display,
1138 as, if the display's GtkCList's selection mode is
1139 GTK_SELECTION_BROWSE, when the first entry is added to it,
1140 "cf_select_packet()" will be called, and it will fetch the row
1141 data for the 0th row, and will get a null pointer rather than
1142 "fdata", as "gtk_clist_append()" won't yet have returned and
1143 thus "gtk_clist_set_row_data()" won't yet have been called.
1145 We thus need to leave behind bread crumbs so that
1146 "cf_select_packet()" can find this frame. See the comment
1147 in "cf_select_packet()". */
1148 if (cf->first_displayed == NULL)
1149 cf->first_displayed = fdata;
1151 /* This is the last frame we've seen so far. */
1152 cf->last_displayed = fdata;
1154 cf->displayed_count++;
1157 epan_dissect_cleanup(&edt);
1164 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1165 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1167 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1169 gboolean add_to_packet_list _U_)
1171 gboolean create_proto_tree = FALSE;
1178 /* just add some value here until we know if it is being displayed or not */
1179 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1181 /* If we don't have the time stamp of the first packet in the
1182 capture, it's because this is the first packet. Save the time
1183 stamp of this packet as the time stamp of the first packet. */
1184 if (nstime_is_unset(&first_ts)) {
1185 first_ts = fdata->abs_ts;
1187 /* if this frames is marked as a reference time frame, reset
1188 firstsec and firstusec to this frame */
1189 if(fdata->flags.ref_time){
1190 first_ts = fdata->abs_ts;
1193 /* If we don't have the time stamp of the previous displayed packet,
1194 it's because this is the first displayed packet. Save the time
1195 stamp of this packet as the time stamp of the previous displayed
1197 if (nstime_is_unset(&prev_dis_ts)) {
1198 prev_dis_ts = fdata->abs_ts;
1201 /* Get the time elapsed between the first packet and this packet. */
1202 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1204 /* If it's greater than the current elapsed time, set the elapsed time
1205 to it (we check for "greater than" so as not to be confused by
1206 time moving backwards). */
1207 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1208 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1209 cf->elapsed_time = fdata->rel_ts;
1212 /* Get the time elapsed between the previous displayed packet and
1214 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1218 we have a display filter and are re-applying it;
1220 we have a list of color filters;
1222 we have tap listeners with filters;
1224 we have tap listeners that require a protocol tree;
1226 we have custom columns;
1228 allocate a protocol tree root node, so that we'll construct
1229 a protocol tree against which a filter expression can be
1231 if ((dfcode != NULL && refilter) ||
1232 color_filters_used() ||
1233 have_custom_cols(cinfo) ||
1234 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1235 create_proto_tree = TRUE;
1237 /* Dissect the frame. */
1238 epan_dissect_init(&edt, create_proto_tree, FALSE);
1240 if (dfcode != NULL && refilter) {
1241 epan_dissect_prime_dfilter(&edt, dfcode);
1244 /* prepare color filters */
1245 color_filters_prime_edt(&edt);
1246 col_custom_prime_edt(&edt, cinfo);
1248 tap_queue_init(&edt);
1249 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1250 tap_push_tapped_queue(&edt);
1252 /* If we have a display filter, apply it if we're refiltering, otherwise
1253 leave the "passed_dfilter" flag alone.
1255 If we don't have a display filter, set "passed_dfilter" to 1. */
1256 if (dfcode != NULL) {
1258 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1261 fdata->flags.passed_dfilter = 1;
1263 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1265 /* This frame either passed the display filter list or is marked as
1266 a time reference frame. All time reference frames are displayed
1267 even if they dont pass the display filter */
1268 if(fdata->flags.ref_time){
1269 /* if this was a TIME REF frame we should reset the cul bytes field */
1270 cum_bytes = fdata->pkt_len;
1271 fdata->cum_bytes = cum_bytes;
1273 /* increase cum_bytes with this packets length */
1274 cum_bytes += fdata->pkt_len;
1277 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1279 /* If we haven't yet seen the first frame, this is it.
1281 XXX - we must do this before we add the row to the display,
1282 as, if the display's GtkCList's selection mode is
1283 GTK_SELECTION_BROWSE, when the first entry is added to it,
1284 "cf_select_packet()" will be called, and it will fetch the row
1285 data for the 0th row, and will get a null pointer rather than
1286 "fdata", as "gtk_clist_append()" won't yet have returned and
1287 thus "gtk_clist_set_row_data()" won't yet have been called.
1289 We thus need to leave behind bread crumbs so that
1290 "cf_select_packet()" can find this frame. See the comment
1291 in "cf_select_packet()". */
1292 if (cf->first_displayed == NULL)
1293 cf->first_displayed = fdata;
1295 /* This is the last frame we've seen so far. */
1296 cf->last_displayed = fdata;
1298 row = packet_list_append(cinfo->col_data, fdata);
1300 /* colorize packet: first apply color filters
1301 * then if packet is marked, use preferences to overwrite color
1302 * we do both to make sure that when a packet gets un-marked, the
1303 * color will be correctly set (fixes bug 2038)
1305 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1306 if (fdata->flags.marked) {
1307 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1310 /* Set the time of the previous displayed frame to the time of this
1312 prev_dis_ts = fdata->abs_ts;
1314 cf->displayed_count++;
1317 epan_dissect_cleanup(&edt);
1322 /* read in a new packet */
1323 /* returns the row of the new packet in the packet list or -1 if not displayed */
1325 read_packet(capture_file *cf, dfilter_t *dfcode,
1326 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1328 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1329 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1330 const guchar *buf = wtap_buf_ptr(cf->wth);
1337 /* Allocate the next list entry, and add it to the list.
1338 * memory chunks have been deprecated in favor of the slice allocator,
1339 * which has been added in 2.10
1341 #if GLIB_CHECK_VERSION(2,10,0)
1342 fdata = g_slice_new(frame_data);
1344 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1347 frame_data_init(fdata, cf->count, phdr, offset, cum_bytes);
1349 #ifdef NEW_PACKET_LIST
1350 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1351 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1357 epan_dissect_init(&edt, TRUE, FALSE);
1358 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1359 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1360 passed = dfilter_apply_edt(cf->rfcode, &edt);
1361 epan_dissect_cleanup(&edt);
1365 cap_file_add_fdata(cf, fdata);
1367 cf->f_datalen = offset + fdata->cap_len;
1369 if (!cf->redissecting) {
1370 row = add_packet_to_packet_list(fdata, cf, dfcode,
1371 filtering_tap_listeners, tap_flags,
1372 pseudo_header, buf, TRUE, TRUE);
1375 /* We didn't pass read filter so roll back count */
1378 /* XXX - if we didn't have read filters, or if we could avoid
1379 allocating the "frame_data" structure until we knew whether
1380 the frame passed the read filter, we could use a G_ALLOC_ONLY
1383 ...but, at least in one test I did, where I just made the chunk
1384 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1385 seem to save a noticeable amount of time or space. */
1386 #if GLIB_CHECK_VERSION(2,10,0)
1387 /* memory chunks have been deprecated in favor of the slice allocator,
1388 * which has been added in 2.10
1390 g_slice_free(frame_data,fdata);
1392 g_mem_chunk_free(cf->plist_chunk, fdata);
1400 cf_merge_files(char **out_filenamep, int in_file_count,
1401 char *const *in_filenames, int file_type, gboolean do_append)
1403 merge_in_file_t *in_files;
1409 int open_err, read_err, write_err, close_err;
1413 char errmsg_errno[1024+1];
1415 gboolean got_read_error = FALSE, got_write_error = FALSE;
1417 progdlg_t *progbar = NULL;
1419 gint64 f_len, file_pos;
1421 GTimeVal start_time;
1422 gchar status_str[100];
1423 gint64 progbar_nextstep;
1424 gint64 progbar_quantum;
1426 /* open the input files */
1427 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1428 &open_err, &err_info, &err_fileno)) {
1430 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1435 if (*out_filenamep != NULL) {
1436 out_filename = *out_filenamep;
1437 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1441 out_fd = create_tempfile(&tmpname, "wireshark");
1444 out_filename = g_strdup(tmpname);
1445 *out_filenamep = out_filename;
1449 merge_close_in_files(in_file_count, in_files);
1451 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1455 pdh = wtap_dump_fdopen(out_fd, file_type,
1456 merge_select_frame_type(in_file_count, in_files),
1457 merge_max_snapshot_length(in_file_count, in_files),
1458 FALSE /* compressed */, &open_err);
1461 merge_close_in_files(in_file_count, in_files);
1463 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1468 /* Get the sum of the sizes of all the files. */
1470 for (i = 0; i < in_file_count; i++)
1471 f_len += in_files[i].size;
1473 /* Update the progress bar when it gets to this value. */
1474 progbar_nextstep = 0;
1475 /* When we reach the value that triggers a progress bar update,
1476 bump that value by this amount. */
1477 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1478 /* Progress so far. */
1482 g_get_current_time(&start_time);
1484 /* do the merge (or append) */
1487 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1490 wth = merge_read_packet(in_file_count, in_files, &read_err,
1494 got_read_error = TRUE;
1498 /* Get the sum of the data offsets in all of the files. */
1500 for (i = 0; i < in_file_count; i++)
1501 data_offset += in_files[i].data_offset;
1503 /* Create the progress bar if necessary.
1504 We check on every iteration of the loop, so that it takes no
1505 longer than the standard time to create it (otherwise, for a
1506 large file, we might take considerably longer than that standard
1507 time in order to get to the next progress bar step). */
1508 if (progbar == NULL) {
1509 progbar = delayed_create_progress_dlg("Merging", "files",
1510 FALSE, &stop_flag, &start_time, progbar_val);
1513 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1514 when we update it, we have to run the GTK+ main loop to get it
1515 to repaint what's pending, and doing so may involve an "ioctl()"
1516 to see if there's any pending input from an X server, and doing
1517 that for every packet can be costly, especially on a big file. */
1518 if (data_offset >= progbar_nextstep) {
1519 /* Get the sum of the seek positions in all of the files. */
1521 for (i = 0; i < in_file_count; i++)
1522 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1523 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1524 if (progbar_val > 1.0f) {
1525 /* Some file probably grew while we were reading it.
1526 That "shouldn't happen", so we'll just clip the progress
1530 if (progbar != NULL) {
1531 g_snprintf(status_str, sizeof(status_str),
1532 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1533 file_pos / 1024, f_len / 1024);
1534 update_progress_dlg(progbar, progbar_val, status_str);
1536 progbar_nextstep += progbar_quantum;
1540 /* Well, the user decided to abort the merge. */
1544 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1545 wtap_buf_ptr(wth), &write_err)) {
1546 got_write_error = TRUE;
1551 /* We're done merging the files; destroy the progress bar if it was created. */
1552 if (progbar != NULL)
1553 destroy_progress_dlg(progbar);
1555 merge_close_in_files(in_file_count, in_files);
1556 if (!got_read_error && !got_write_error) {
1557 if (!wtap_dump_close(pdh, &write_err))
1558 got_write_error = TRUE;
1560 wtap_dump_close(pdh, &close_err);
1562 if (got_read_error) {
1564 * Find the file on which we got the error, and report the error.
1566 for (i = 0; i < in_file_count; i++) {
1567 if (in_files[i].state == GOT_ERROR) {
1568 /* Put up a message box noting that a read failed somewhere along
1572 case WTAP_ERR_UNSUPPORTED_ENCAP:
1573 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1574 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1577 errmsg = errmsg_errno;
1580 case WTAP_ERR_CANT_READ:
1581 errmsg = "An attempt to read from the capture file %s failed for"
1582 " some unknown reason.";
1585 case WTAP_ERR_SHORT_READ:
1586 errmsg = "The capture file %s appears to have been cut short"
1587 " in the middle of a packet.";
1590 case WTAP_ERR_BAD_RECORD:
1591 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1592 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1595 errmsg = errmsg_errno;
1599 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1600 "An error occurred while reading the"
1601 " capture file %%s: %s.", wtap_strerror(read_err));
1602 errmsg = errmsg_errno;
1605 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1610 if (got_write_error) {
1611 /* Put up an alert box for the write error. */
1612 cf_write_failure_alert_box(out_filename, write_err);
1615 if (got_read_error || got_write_error || stop_flag) {
1616 /* Callers aren't expected to treat an error or an explicit abort
1617 differently - we put up error dialogs ourselves, so they don't
1625 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1627 const char *filter_new = dftext ? dftext : "";
1628 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1631 /* if new filter equals old one, do nothing unless told to do so */
1632 if (!force && strcmp(filter_new, filter_old) == 0) {
1638 if (dftext == NULL) {
1639 /* The new filter is an empty filter (i.e., display all packets).
1640 * so leave dfcode==NULL
1644 * We have a filter; make a copy of it (as we'll be saving it),
1645 * and try to compile it.
1647 dftext = g_strdup(dftext);
1648 if (!dfilter_compile(dftext, &dfcode)) {
1649 /* The attempt failed; report an error. */
1650 gchar *safe_dftext = simple_dialog_format_message(dftext);
1651 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1653 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1656 "The following display filter isn't a valid display filter:\n%s\n"
1657 "See the help for a description of the display filter syntax.",
1658 simple_dialog_primary_start(), safe_dfilter_error_msg,
1659 simple_dialog_primary_end(), safe_dftext);
1660 g_free(safe_dfilter_error_msg);
1661 g_free(safe_dftext);
1667 if (dfcode == NULL) {
1668 /* Yes - free the filter text, and set it to null. */
1674 /* We have a valid filter. Replace the current filter. */
1675 g_free(cf->dfilter);
1676 cf->dfilter = dftext;
1678 /* Now rescan the packet list, applying the new filter, but not
1679 throwing away information constructed on a previous pass. */
1680 if (dftext == NULL) {
1681 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1683 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1686 /* Cleanup and release all dfilter resources */
1687 dfilter_free(dfcode);
1693 cf_colorize_packets(capture_file *cf)
1695 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1699 cf_reftime_packets(capture_file *cf)
1702 #ifdef NEW_PACKET_LIST
1703 ref_time_packets(cf);
1705 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1710 cf_redissect_packets(capture_file *cf)
1712 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1715 /* Rescan the list of packets, reconstructing the CList.
1717 "action" describes why we're doing this; it's used in the progress
1720 "action_item" describes what we're doing; it's used in the progress
1723 "refilter" is TRUE if we need to re-evaluate the filter expression.
1725 "redissect" is TRUE if we need to make the dissectors reconstruct
1726 any state information they have (because a preference that affects
1727 some dissector has changed, meaning some dissector might construct
1728 its state differently from the way it was constructed the last time). */
1729 #ifdef NEW_PACKET_LIST
1731 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1732 gboolean refilter, gboolean redissect)
1734 /* Rescan packets new packet list */
1736 progdlg_t *progbar = NULL;
1741 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1742 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1743 gboolean selected_frame_seen;
1746 GTimeVal start_time;
1747 gchar status_str[100];
1748 int progbar_nextstep;
1749 int progbar_quantum;
1751 gboolean filtering_tap_listeners;
1753 gboolean add_to_packet_list = FALSE;
1756 /* Compile the current display filter.
1757 * We assume this will not fail since cf->dfilter is only set in
1758 * cf_filter IFF the filter was valid.
1760 compiled = dfilter_compile(cf->dfilter, &dfcode);
1761 g_assert(!cf->dfilter || (compiled && dfcode));
1763 /* Do we have any tap listeners with filters? */
1764 filtering_tap_listeners = have_filtering_tap_listeners();
1766 /* Get the union of the flags for all tap listeners. */
1767 tap_flags = union_of_tap_listener_flags();
1769 reset_tap_listeners();
1770 /* Which frame, if any, is the currently selected frame?
1771 XXX - should the selected frame or the focus frame be the "current"
1772 frame, that frame being the one from which "Find Frame" searches
1774 selected_frame = cf->current_frame;
1776 /* Mark frane num as not found */
1777 selected_frame_num = -1;
1779 /* Freeze the packet list while we redo it, so we don't get any
1780 screen updates while it happens. */
1781 new_packet_list_freeze();
1784 /* We need to re-initialize all the state information that protocols
1785 keep, because some preference that controls a dissector has changed,
1786 which might cause the state information to be constructed differently
1787 by that dissector. */
1789 /* We might receive new packets while redissecting, and we don't
1790 want to dissect those before their time. */
1791 cf->redissecting = TRUE;
1793 /* Cleanup all data structures used for dissection. */
1794 cleanup_dissection();
1795 /* Initialize all data structures used for dissection. */
1798 /* We need to redissect the packets so we have to discard our old
1799 * packet list store. */
1800 new_packet_list_clear();
1801 add_to_packet_list = TRUE;
1804 /* We don't yet know which will be the first and last frames displayed. */
1805 cf->first_displayed = NULL;
1806 cf->last_displayed = NULL;
1810 /* We currently don't display any packets */
1811 cf->displayed_count = 0;
1813 /* Iterate through the list of frames. Call a routine for each frame
1814 to check whether it should be displayed and, if so, add it to
1815 the display list. */
1816 nstime_set_unset(&first_ts);
1817 nstime_set_unset(&prev_dis_ts);
1818 nstime_set_unset(&prev_cap_ts);
1821 /* Update the progress bar when it gets to this value. */
1822 progbar_nextstep = 0;
1823 /* When we reach the value that triggers a progress bar update,
1824 bump that value by this amount. */
1825 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1826 /* Count of packets at which we've looked. */
1828 /* Progress so far. */
1832 g_get_current_time(&start_time);
1834 /* no previous row yet */
1836 prev_frame_num = -1;
1839 preceding_frame_num = -1;
1840 preceding_frame = NULL;
1841 following_frame_num = -1;
1842 following_frame = NULL;
1844 selected_frame_seen = FALSE;
1846 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1847 /* Create the progress bar if necessary.
1848 We check on every iteration of the loop, so that it takes no
1849 longer than the standard time to create it (otherwise, for a
1850 large file, we might take considerably longer than that standard
1851 time in order to get to the next progress bar step). */
1852 if (progbar == NULL)
1853 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1854 &stop_flag, &start_time,
1857 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1858 when we update it, we have to run the GTK+ main loop to get it
1859 to repaint what's pending, and doing so may involve an "ioctl()"
1860 to see if there's any pending input from an X server, and doing
1861 that for every packet can be costly, especially on a big file. */
1862 if (count >= progbar_nextstep) {
1863 /* let's not divide by zero. I should never be started
1864 * with count == 0, so let's assert that
1866 g_assert(cf->count > 0);
1867 progbar_val = (gfloat) count / cf->count;
1869 if (progbar != NULL) {
1870 g_snprintf(status_str, sizeof(status_str),
1871 "%4u of %u frames", count, cf->count);
1872 update_progress_dlg(progbar, progbar_val, status_str);
1875 progbar_nextstep += progbar_quantum;
1879 /* Well, the user decided to abort the filtering. Just stop.
1881 XXX - go back to the previous filter? Users probably just
1882 want not to wait for a filtering operation to finish;
1883 unless we cancel by having no filter, reverting to the
1884 previous filter will probably be even more expensive than
1885 continuing the filtering, as it involves going back to the
1886 beginning and filtering, and even with no filter we currently
1887 have to re-generate the entire clist, which is also expensive.
1889 I'm not sure what Network Monitor does, but it doesn't appear
1890 to give you an unfiltered display if you cancel. */
1897 /* Since all state for the frame was destroyed, mark the frame
1898 * as not visited, free the GSList referring to the state
1899 * data (the per-frame data itself was freed by
1900 * "init_dissection()"), and null out the GSList pointer. */
1901 fdata->flags.visited = 0;
1902 frame_data_cleanup(fdata);
1904 /* cleanup_dissection() calls se_free_all();
1905 * And after that fdata->col_text (which is allocated using se_alloc0())
1906 * no longer points to valid memory.
1908 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1909 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1912 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1913 cf->pd, fdata->cap_len, &err, &err_info)) {
1914 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1915 cf_read_error_message(err, err_info), cf->filename);
1919 /* If the previous frame is displayed, and we haven't yet seen the
1920 selected frame, remember that frame - it's the closest one we've
1921 yet seen before the selected frame. */
1922 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1923 preceding_frame_num = prev_frame_num;
1924 preceding_frame = prev_frame;
1926 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1927 tap_flags, &cf->pseudo_header, cf->pd,
1929 add_to_packet_list);
1931 /* If this frame is displayed, and this is the first frame we've
1932 seen displayed after the selected frame, remember this frame -
1933 it's the closest one we've yet seen at or after the selected
1935 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1936 following_frame_num = fdata->num;
1937 following_frame = fdata;
1939 if (fdata == selected_frame) {
1940 selected_frame_seen = TRUE;
1941 if (fdata->flags.passed_dfilter)
1942 selected_frame_num = fdata->num;
1945 /* Remember this frame - it'll be the previous frame
1946 on the next pass through the loop. */
1947 prev_frame_num = fdata->num;
1951 /* We are done redissecting the packet list. */
1952 cf->redissecting = FALSE;
1955 /* Clear out what remains of the visited flags and per-frame data
1958 XXX - that may cause various forms of bogosity when dissecting
1959 these frames, as they won't have been seen by this sequential
1960 pass, but the only alternative I see is to keep scanning them
1961 even though the user requested that the scan stop, and that
1962 would leave the user stuck with an Wireshark grinding on
1963 until it finishes. Should we just stick them with that? */
1964 for (; fdata != NULL; fdata = fdata->next) {
1965 fdata->flags.visited = 0;
1966 frame_data_cleanup(fdata);
1970 /* We're done filtering the packets; destroy the progress bar if it
1972 if (progbar != NULL)
1973 destroy_progress_dlg(progbar);
1975 /* Unfreeze the packet list. */
1976 if (!add_to_packet_list)
1977 new_packet_list_recreate_visible_rows();
1979 new_packet_list_thaw();
1981 if (selected_frame_num == -1) {
1982 /* The selected frame didn't pass the filter. */
1983 if (selected_frame == NULL) {
1984 /* That's because there *was* no selected frame. Make the first
1985 displayed frame the current frame. */
1986 selected_frame_num = 0;
1988 /* Find the nearest displayed frame to the selected frame (whether
1989 it's before or after that frame) and make that the current frame.
1990 If the next and previous displayed frames are equidistant from the
1991 selected frame, choose the next one. */
1992 g_assert(following_frame == NULL ||
1993 following_frame->num >= selected_frame->num);
1994 g_assert(preceding_frame == NULL ||
1995 preceding_frame->num <= selected_frame->num);
1996 if (following_frame == NULL) {
1997 /* No frame after the selected frame passed the filter, so we
1998 have to select the last displayed frame before the selected
2000 selected_frame_num = preceding_frame_num;
2001 selected_frame = preceding_frame;
2002 } else if (preceding_frame == NULL) {
2003 /* No frame before the selected frame passed the filter, so we
2004 have to select the first displayed frame after the selected
2006 selected_frame_num = following_frame_num;
2007 selected_frame = following_frame;
2009 /* Frames before and after the selected frame passed the filter, so
2010 we'll select the previous frame */
2011 selected_frame_num = preceding_frame_num;
2012 selected_frame = preceding_frame;
2017 if (selected_frame_num == -1) {
2018 /* There are no frames displayed at all. */
2019 cf_unselect_packet(cf);
2021 /* Either the frame that was selected passed the filter, or we've
2022 found the nearest displayed frame to that frame. Select it, make
2023 it the focus row, and make it visible. */
2024 if (selected_frame_num == 0) {
2025 new_packet_list_select_first_row();
2027 new_packet_list_find_row_from_data(selected_frame, TRUE);
2031 /* Cleanup and release all dfilter resources */
2032 dfilter_free(dfcode);
2038 rescan_packets(capture_file *cf, const char *action, const char *action_item,
2039 gboolean refilter, gboolean redissect)
2042 progdlg_t *progbar = NULL;
2047 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
2048 int selected_row, prev_row, preceding_row, following_row;
2049 gboolean selected_frame_seen;
2052 GTimeVal start_time;
2053 gchar status_str[100];
2054 int progbar_nextstep;
2055 int progbar_quantum;
2057 gboolean filtering_tap_listeners;
2059 gboolean add_to_packet_list = TRUE;
2062 /* Compile the current display filter.
2063 * We assume this will not fail since cf->dfilter is only set in
2064 * cf_filter IFF the filter was valid.
2066 compiled = dfilter_compile(cf->dfilter, &dfcode);
2067 g_assert(!cf->dfilter || (compiled && dfcode));
2069 /* Do we have any tap listeners with filters? */
2070 filtering_tap_listeners = have_filtering_tap_listeners();
2072 /* Get the union of the flags for all tap listeners. */
2073 tap_flags = union_of_tap_listener_flags();
2075 reset_tap_listeners();
2076 /* Which frame, if any, is the currently selected frame?
2077 XXX - should the selected frame or the focus frame be the "current"
2078 frame, that frame being the one from which "Find Frame" searches
2080 selected_frame = cf->current_frame;
2082 /* We don't yet know what row that frame will be on, if any, after we
2083 rebuild the clist, however. */
2086 /* Freeze the packet list while we redo it, so we don't get any
2087 screen updates while it happens. */
2088 packet_list_freeze();
2091 packet_list_clear();
2094 /* We need to re-initialize all the state information that protocols
2095 keep, because some preference that controls a dissector has changed,
2096 which might cause the state information to be constructed differently
2097 by that dissector. */
2099 /* We might receive new packets while redissecting, and we don't
2100 want to dissect those before their time. */
2101 cf->redissecting = TRUE;
2103 /* Cleanup all data structures used for dissection. */
2104 cleanup_dissection();
2105 /* Initialize all data structures used for dissection. */
2110 /* We don't yet know which will be the first and last frames displayed. */
2111 cf->first_displayed = NULL;
2112 cf->last_displayed = NULL;
2116 /* We currently don't display any packets */
2117 cf->displayed_count = 0;
2119 /* Iterate through the list of frames. Call a routine for each frame
2120 to check whether it should be displayed and, if so, add it to
2121 the display list. */
2122 nstime_set_unset(&first_ts);
2123 nstime_set_unset(&prev_dis_ts);
2126 /* Update the progress bar when it gets to this value. */
2127 progbar_nextstep = 0;
2128 /* When we reach the value that triggers a progress bar update,
2129 bump that value by this amount. */
2130 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2131 /* Count of packets at which we've looked. */
2133 /* Progress so far. */
2137 g_get_current_time(&start_time);
2139 row = -1; /* no previous row yet */
2144 preceding_frame = NULL;
2146 following_frame = NULL;
2148 selected_frame_seen = FALSE;
2150 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2151 /* Create the progress bar if necessary.
2152 We check on every iteration of the loop, so that it takes no
2153 longer than the standard time to create it (otherwise, for a
2154 large file, we might take considerably longer than that standard
2155 time in order to get to the next progress bar step). */
2156 if (progbar == NULL)
2157 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2158 &stop_flag, &start_time,
2161 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2162 when we update it, we have to run the GTK+ main loop to get it
2163 to repaint what's pending, and doing so may involve an "ioctl()"
2164 to see if there's any pending input from an X server, and doing
2165 that for every packet can be costly, especially on a big file. */
2166 if (count >= progbar_nextstep) {
2167 /* let's not divide by zero. I should never be started
2168 * with count == 0, so let's assert that
2170 g_assert(cf->count > 0);
2171 progbar_val = (gfloat) count / cf->count;
2173 if (progbar != NULL) {
2174 g_snprintf(status_str, sizeof(status_str),
2175 "%4u of %u frames", count, cf->count);
2176 update_progress_dlg(progbar, progbar_val, status_str);
2179 progbar_nextstep += progbar_quantum;
2183 /* Well, the user decided to abort the filtering. Just stop.
2185 XXX - go back to the previous filter? Users probably just
2186 want not to wait for a filtering operation to finish;
2187 unless we cancel by having no filter, reverting to the
2188 previous filter will probably be even more expensive than
2189 continuing the filtering, as it involves going back to the
2190 beginning and filtering, and even with no filter we currently
2191 have to re-generate the entire clist, which is also expensive.
2193 I'm not sure what Network Monitor does, but it doesn't appear
2194 to give you an unfiltered display if you cancel. */
2201 /* Since all state for the frame was destroyed, mark the frame
2202 * as not visited, free the GSList referring to the state
2203 * data (the per-frame data itself was freed by
2204 * "init_dissection()"), and null out the GSList pointer.
2206 fdata->flags.visited = 0;
2207 frame_data_cleanup(fdata);
2210 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2211 cf->pd, fdata->cap_len, &err, &err_info)) {
2212 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2213 cf_read_error_message(err, err_info), cf->filename);
2217 /* If the previous frame is displayed, and we haven't yet seen the
2218 selected frame, remember that frame - it's the closest one we've
2219 yet seen before the selected frame. */
2220 if (prev_row != -1 && !selected_frame_seen) {
2221 preceding_row = prev_row;
2222 preceding_frame = prev_frame;
2224 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2225 tap_flags, &cf->pseudo_header, cf->pd,
2227 add_to_packet_list);
2229 /* If this frame is displayed, and this is the first frame we've
2230 seen displayed after the selected frame, remember this frame -
2231 it's the closest one we've yet seen at or after the selected
2233 if (row != -1 && selected_frame_seen && following_row == -1) {
2234 following_row = row;
2235 following_frame = fdata;
2237 if (fdata == selected_frame) {
2239 selected_frame_seen = TRUE;
2242 /* Remember this row/frame - it'll be the previous row/frame
2243 on the next pass through the loop. */
2248 /* We are done redissecting the packet list. */
2249 cf->redissecting = FALSE;
2252 /* Clear out what remains of the visited flags and per-frame data
2255 XXX - that may cause various forms of bogosity when dissecting
2256 these frames, as they won't have been seen by this sequential
2257 pass, but the only alternative I see is to keep scanning them
2258 even though the user requested that the scan stop, and that
2259 would leave the user stuck with an Wireshark grinding on
2260 until it finishes. Should we just stick them with that? */
2261 for (; fdata != NULL; fdata = fdata->next) {
2262 fdata->flags.visited = 0;
2263 frame_data_cleanup(fdata);
2267 /* We're done filtering the packets; destroy the progress bar if it
2269 if (progbar != NULL)
2270 destroy_progress_dlg(progbar);
2272 /* Unfreeze the packet list. */
2275 if (selected_row == -1) {
2276 /* The selected frame didn't pass the filter. */
2277 if (selected_frame == NULL) {
2278 /* That's because there *was* no selected frame. Make the first
2279 displayed frame the current frame. */
2282 /* Find the nearest displayed frame to the selected frame (whether
2283 it's before or after that frame) and make that the current frame.
2284 If the next and previous displayed frames are equidistant from the
2285 selected frame, choose the next one. */
2286 g_assert(following_frame == NULL ||
2287 following_frame->num >= selected_frame->num);
2288 g_assert(preceding_frame == NULL ||
2289 preceding_frame->num <= selected_frame->num);
2290 if (following_frame == NULL) {
2291 /* No frame after the selected frame passed the filter, so we
2292 have to select the last displayed frame before the selected
2294 selected_row = preceding_row;
2295 } else if (preceding_frame == NULL) {
2296 /* No frame before the selected frame passed the filter, so we
2297 have to select the first displayed frame after the selected
2299 selected_row = following_row;
2301 /* Frames before and after the selected frame passed the filter, so
2302 we'll select the previous frame */
2303 selected_row = preceding_row;
2308 if (selected_row == -1) {
2309 /* There are no frames displayed at all. */
2310 cf_unselect_packet(cf);
2312 /* Either the frame that was selected passed the filter, or we've
2313 found the nearest displayed frame to that frame. Select it, make
2314 it the focus row, and make it visible. */
2315 if (selected_row == 0) {
2316 /* Set to invalid to force update of packet list and packet details */
2317 cf->current_row = -1;
2319 packet_list_set_selected_row(selected_row);
2322 /* Cleanup and release all dfilter resources */
2323 dfilter_free(dfcode);
2325 #endif /* NEW_PACKET_LIST */
2328 * Scan trough all frame data and recalculate the ref time
2329 * without rereading the file.
2330 * XXX - do we need a progres bar or is this fast enough?
2332 #ifdef NEW_PACKET_LIST
2334 ref_time_packets(capture_file *cf)
2338 nstime_set_unset(&first_ts);
2339 nstime_set_unset(&prev_dis_ts);
2340 nstime_set_unset(&prev_cap_ts);
2343 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2344 /* just add some value here until we know if it is being displayed or not */
2345 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2347 /* If we don't have the time stamp of the first packet in the
2348 capture, it's because this is the first packet. Save the time
2349 stamp of this packet as the time stamp of the first packet. */
2350 if (nstime_is_unset(&first_ts)) {
2351 first_ts = fdata->abs_ts;
2353 /* if this frames is marked as a reference time frame, reset
2354 firstsec and firstusec to this frame */
2355 if(fdata->flags.ref_time){
2356 first_ts = fdata->abs_ts;
2359 /* If we don't have the time stamp of the previous displayed packet,
2360 it's because this is the first displayed packet. Save the time
2361 stamp of this packet as the time stamp of the previous displayed
2363 if (nstime_is_unset(&prev_dis_ts)) {
2364 prev_dis_ts = fdata->abs_ts;
2367 /* Get the time elapsed between the first packet and this packet. */
2368 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2370 /* If it's greater than the current elapsed time, set the elapsed time
2371 to it (we check for "greater than" so as not to be confused by
2372 time moving backwards). */
2373 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2374 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2375 cf->elapsed_time = fdata->rel_ts;
2378 /* Get the time elapsed between the previous displayed packet and
2380 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2382 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2383 /* This frame either passed the display filter list or is marked as
2384 a time reference frame. All time reference frames are displayed
2385 even if they dont pass the display filter */
2386 if(fdata->flags.ref_time){
2387 /* if this was a TIME REF frame we should reset the cul bytes field */
2388 cum_bytes = fdata->pkt_len;
2389 fdata->cum_bytes = cum_bytes;
2391 /* increase cum_bytes with this packets length */
2392 cum_bytes += fdata->pkt_len;
2406 process_specified_packets(capture_file *cf, packet_range_t *range,
2407 const char *string1, const char *string2, gboolean terminate_is_stop,
2408 gboolean (*callback)(capture_file *, frame_data *,
2409 union wtap_pseudo_header *, const guint8 *, void *),
2410 void *callback_args)
2415 union wtap_pseudo_header pseudo_header;
2416 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2417 psp_return_t ret = PSP_FINISHED;
2419 progdlg_t *progbar = NULL;
2422 gboolean progbar_stop_flag;
2423 GTimeVal progbar_start_time;
2424 gchar progbar_status_str[100];
2425 int progbar_nextstep;
2426 int progbar_quantum;
2427 range_process_e process_this;
2429 /* Update the progress bar when it gets to this value. */
2430 progbar_nextstep = 0;
2431 /* When we reach the value that triggers a progress bar update,
2432 bump that value by this amount. */
2433 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2434 /* Count of packets at which we've looked. */
2436 /* Progress so far. */
2439 progbar_stop_flag = FALSE;
2440 g_get_current_time(&progbar_start_time);
2442 packet_range_process_init(range);
2444 /* Iterate through the list of packets, printing the packets that
2445 were selected by the current display filter. */
2446 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2447 /* Create the progress bar if necessary.
2448 We check on every iteration of the loop, so that it takes no
2449 longer than the standard time to create it (otherwise, for a
2450 large file, we might take considerably longer than that standard
2451 time in order to get to the next progress bar step). */
2452 if (progbar == NULL)
2453 progbar = delayed_create_progress_dlg(string1, string2,
2456 &progbar_start_time,
2459 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2460 when we update it, we have to run the GTK+ main loop to get it
2461 to repaint what's pending, and doing so may involve an "ioctl()"
2462 to see if there's any pending input from an X server, and doing
2463 that for every packet can be costly, especially on a big file. */
2464 if (progbar_count >= progbar_nextstep) {
2465 /* let's not divide by zero. I should never be started
2466 * with count == 0, so let's assert that
2468 g_assert(cf->count > 0);
2469 progbar_val = (gfloat) progbar_count / cf->count;
2471 if (progbar != NULL) {
2472 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2473 "%4u of %u packets", progbar_count, cf->count);
2474 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2477 progbar_nextstep += progbar_quantum;
2480 if (progbar_stop_flag) {
2481 /* Well, the user decided to abort the operation. Just stop,
2482 and arrange to return PSP_STOPPED to our caller, so they know
2483 it was stopped explicitly. */
2490 /* do we have to process this packet? */
2491 process_this = packet_range_process_packet(range, fdata);
2492 if (process_this == range_process_next) {
2493 /* this packet uninteresting, continue with next one */
2495 } else if (process_this == range_processing_finished) {
2496 /* all interesting packets processed, stop the loop */
2500 /* Get the packet */
2501 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2502 pd, fdata->cap_len, &err, &err_info)) {
2503 /* Attempt to get the packet failed. */
2504 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2505 cf_read_error_message(err, err_info), cf->filename);
2509 /* Process the packet */
2510 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2511 /* Callback failed. We assume it reported the error appropriately. */
2517 /* We're done printing the packets; destroy the progress bar if
2519 if (progbar != NULL)
2520 destroy_progress_dlg(progbar);
2526 gboolean construct_protocol_tree;
2528 } retap_callback_args_t;
2531 retap_packet(capture_file *cf _U_, frame_data *fdata,
2532 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2535 retap_callback_args_t *args = argsp;
2538 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2539 tap_queue_init(&edt);
2540 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2541 tap_push_tapped_queue(&edt);
2542 epan_dissect_cleanup(&edt);
2548 cf_retap_packets(capture_file *cf)
2550 packet_range_t range;
2551 retap_callback_args_t callback_args;
2552 gboolean filtering_tap_listeners;
2555 /* Do we have any tap listeners with filters? */
2556 filtering_tap_listeners = have_filtering_tap_listeners();
2558 tap_flags = union_of_tap_listener_flags();
2560 /* If any tap listeners have filters, or require the protocol tree,
2561 construct the protocol tree. */
2562 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2563 (tap_flags & TL_REQUIRES_PROTO_TREE);
2565 /* If any tap listeners require the columns, construct them. */
2566 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2568 /* Reset the tap listeners. */
2569 reset_tap_listeners();
2571 /* Iterate through the list of packets, dissecting all packets and
2572 re-running the taps. */
2573 packet_range_init(&range);
2574 packet_range_process_init(&range);
2575 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2576 "all packets", TRUE, retap_packet,
2579 /* Completed successfully. */
2583 /* Well, the user decided to abort the refiltering.
2584 Return CF_READ_ABORTED so our caller knows they did that. */
2585 return CF_READ_ABORTED;
2588 /* Error while retapping. */
2589 return CF_READ_ERROR;
2592 g_assert_not_reached();
2597 print_args_t *print_args;
2598 gboolean print_header_line;
2599 char *header_line_buf;
2600 int header_line_buf_len;
2601 gboolean print_formfeed;
2602 gboolean print_separator;
2606 } print_callback_args_t;
2609 print_packet(capture_file *cf, frame_data *fdata,
2610 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2613 print_callback_args_t *args = argsp;
2620 gboolean proto_tree_needed;
2621 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2622 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2624 /* Create the protocol tree, and make it visible, if we're printing
2625 the dissection or the hex data.
2626 XXX - do we need it if we're just printing the hex data? */
2628 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2629 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2631 /* Fill in the column information if we're printing the summary
2633 if (args->print_args->print_summary) {
2634 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2635 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2637 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2639 if (args->print_formfeed) {
2640 if (!new_page(args->print_args->stream))
2643 if (args->print_separator) {
2644 if (!print_line(args->print_args->stream, 0, ""))
2650 * We generate bookmarks, if the output format supports them.
2651 * The name is "__frameN__".
2653 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2655 if (args->print_args->print_summary) {
2656 if (args->print_header_line) {
2657 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2659 args->print_header_line = FALSE; /* we might not need to print any more */
2661 cp = &args->line_buf[0];
2663 for (i = 0; i < cf->cinfo.num_cols; i++) {
2664 /* Find the length of the string for this column. */
2665 column_len = (int) strlen(cf->cinfo.col_data[i]);
2666 if (args->col_widths[i] > column_len)
2667 column_len = args->col_widths[i];
2669 /* Make sure there's room in the line buffer for the column; if not,
2670 double its length. */
2671 line_len += column_len + 1; /* "+1" for space */
2672 if (line_len > args->line_buf_len) {
2673 cp_off = (int) (cp - args->line_buf);
2674 args->line_buf_len = 2 * line_len;
2675 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2676 cp = args->line_buf + cp_off;
2679 /* Right-justify the packet number column. */
2680 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2681 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2683 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2685 if (i != cf->cinfo.num_cols - 1)
2691 * Generate a bookmark, using the summary line as the title.
2693 if (!print_bookmark(args->print_args->stream, bookmark_name,
2697 if (!print_line(args->print_args->stream, 0, args->line_buf))
2701 * Generate a bookmark, using "Frame N" as the title, as we're not
2702 * printing the summary line.
2704 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2705 if (!print_bookmark(args->print_args->stream, bookmark_name,
2708 } /* if (print_summary) */
2710 if (args->print_args->print_dissections != print_dissections_none) {
2711 if (args->print_args->print_summary) {
2712 /* Separate the summary line from the tree with a blank line. */
2713 if (!print_line(args->print_args->stream, 0, ""))
2717 /* Print the information in that tree. */
2718 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2721 /* Print a blank line if we print anything after this (aka more than one packet). */
2722 args->print_separator = TRUE;
2724 /* Print a header line if we print any more packet summaries */
2725 args->print_header_line = TRUE;
2728 if (args->print_args->print_hex) {
2729 /* Print the full packet data as hex. */
2730 if (!print_hex_data(args->print_args->stream, &edt))
2733 /* Print a blank line if we print anything after this (aka more than one packet). */
2734 args->print_separator = TRUE;
2736 /* Print a header line if we print any more packet summaries */
2737 args->print_header_line = TRUE;
2738 } /* if (args->print_args->print_dissections != print_dissections_none) */
2740 epan_dissect_cleanup(&edt);
2742 /* do we want to have a formfeed between each packet from now on? */
2743 if(args->print_args->print_formfeed) {
2744 args->print_formfeed = TRUE;
2750 epan_dissect_cleanup(&edt);
2755 cf_print_packets(capture_file *cf, print_args_t *print_args)
2758 print_callback_args_t callback_args;
2766 callback_args.print_args = print_args;
2767 callback_args.print_header_line = TRUE;
2768 callback_args.header_line_buf = NULL;
2769 callback_args.header_line_buf_len = 256;
2770 callback_args.print_formfeed = FALSE;
2771 callback_args.print_separator = FALSE;
2772 callback_args.line_buf = NULL;
2773 callback_args.line_buf_len = 256;
2774 callback_args.col_widths = NULL;
2776 if (!print_preamble(print_args->stream, cf->filename)) {
2777 destroy_print_stream(print_args->stream);
2778 return CF_PRINT_WRITE_ERROR;
2781 if (print_args->print_summary) {
2782 /* We're printing packet summaries. Allocate the header line buffer
2783 and get the column widths. */
2784 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2786 /* Find the widths for each of the columns - maximum of the
2787 width of the title and the width of the data - and construct
2788 a buffer with a line containing the column titles. */
2789 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2790 cp = &callback_args.header_line_buf[0];
2792 for (i = 0; i < cf->cinfo.num_cols; i++) {
2793 /* Don't pad the last column. */
2794 if (i == cf->cinfo.num_cols - 1)
2795 callback_args.col_widths[i] = 0;
2797 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2798 data_width = get_column_char_width(get_column_format(i));
2799 if (data_width > callback_args.col_widths[i])
2800 callback_args.col_widths[i] = data_width;
2803 /* Find the length of the string for this column. */
2804 column_len = (int) strlen(cf->cinfo.col_title[i]);
2805 if (callback_args.col_widths[i] > column_len)
2806 column_len = callback_args.col_widths[i];
2808 /* Make sure there's room in the line buffer for the column; if not,
2809 double its length. */
2810 line_len += column_len + 1; /* "+1" for space */
2811 if (line_len > callback_args.header_line_buf_len) {
2812 cp_off = (int) (cp - callback_args.header_line_buf);
2813 callback_args.header_line_buf_len = 2 * line_len;
2814 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2815 callback_args.header_line_buf_len + 1);
2816 cp = callback_args.header_line_buf + cp_off;
2819 /* Right-justify the packet number column. */
2820 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2821 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2823 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2825 if (i != cf->cinfo.num_cols - 1)
2830 /* Now start out the main line buffer with the same length as the
2831 header line buffer. */
2832 callback_args.line_buf_len = callback_args.header_line_buf_len;
2833 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2834 } /* if (print_summary) */
2836 /* Iterate through the list of packets, printing the packets we were
2838 ret = process_specified_packets(cf, &print_args->range, "Printing",
2839 "selected packets", TRUE, print_packet,
2842 g_free(callback_args.header_line_buf);
2843 g_free(callback_args.line_buf);
2844 g_free(callback_args.col_widths);
2849 /* Completed successfully. */
2853 /* Well, the user decided to abort the printing.
2855 XXX - note that what got generated before they did that
2856 will get printed if we're piping to a print program; we'd
2857 have to write to a file and then hand that to the print
2858 program to make it actually not print anything. */
2862 /* Error while printing.
2864 XXX - note that what got generated before they did that
2865 will get printed if we're piping to a print program; we'd
2866 have to write to a file and then hand that to the print
2867 program to make it actually not print anything. */
2868 destroy_print_stream(print_args->stream);
2869 return CF_PRINT_WRITE_ERROR;
2872 if (!print_finale(print_args->stream)) {
2873 destroy_print_stream(print_args->stream);
2874 return CF_PRINT_WRITE_ERROR;
2877 if (!destroy_print_stream(print_args->stream))
2878 return CF_PRINT_WRITE_ERROR;
2884 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2885 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2891 /* Create the protocol tree, but don't fill in the column information. */
2892 epan_dissect_init(&edt, TRUE, TRUE);
2893 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2895 /* Write out the information in that tree. */
2896 proto_tree_write_pdml(&edt, fh);
2898 epan_dissect_cleanup(&edt);
2904 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2909 fh = ws_fopen(print_args->file, "w");
2911 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2913 write_pdml_preamble(fh);
2916 return CF_PRINT_WRITE_ERROR;
2919 /* Iterate through the list of packets, printing the packets we were
2921 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2922 "selected packets", TRUE,
2923 write_pdml_packet, fh);
2928 /* Completed successfully. */
2932 /* Well, the user decided to abort the printing. */
2936 /* Error while printing. */
2938 return CF_PRINT_WRITE_ERROR;
2941 write_pdml_finale(fh);
2944 return CF_PRINT_WRITE_ERROR;
2947 /* XXX - check for an error */
2954 write_psml_packet(capture_file *cf, frame_data *fdata,
2955 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2960 gboolean proto_tree_needed;
2962 /* Fill in the column information, only create the protocol tree
2963 if having custom columns. */
2964 proto_tree_needed = have_custom_cols(&cf->cinfo);
2965 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2966 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2967 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2969 /* Write out the information in that tree. */
2970 proto_tree_write_psml(&edt, fh);
2972 epan_dissect_cleanup(&edt);
2978 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2983 fh = ws_fopen(print_args->file, "w");
2985 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2987 write_psml_preamble(fh);
2990 return CF_PRINT_WRITE_ERROR;
2993 /* Iterate through the list of packets, printing the packets we were
2995 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2996 "selected packets", TRUE,
2997 write_psml_packet, fh);
3002 /* Completed successfully. */
3006 /* Well, the user decided to abort the printing. */
3010 /* Error while printing. */
3012 return CF_PRINT_WRITE_ERROR;
3015 write_psml_finale(fh);
3018 return CF_PRINT_WRITE_ERROR;
3021 /* XXX - check for an error */
3028 write_csv_packet(capture_file *cf, frame_data *fdata,
3029 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3034 gboolean proto_tree_needed;
3036 /* Fill in the column information, only create the protocol tree
3037 if having custom columns. */
3038 proto_tree_needed = have_custom_cols(&cf->cinfo);
3039 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3040 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3041 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3043 /* Write out the information in that tree. */
3044 proto_tree_write_csv(&edt, fh);
3046 epan_dissect_cleanup(&edt);
3052 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3057 fh = ws_fopen(print_args->file, "w");
3059 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3061 write_csv_preamble(fh);
3064 return CF_PRINT_WRITE_ERROR;
3067 /* Iterate through the list of packets, printing the packets we were
3069 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3070 "selected packets", TRUE,
3071 write_csv_packet, fh);
3076 /* Completed successfully. */
3080 /* Well, the user decided to abort the printing. */
3084 /* Error while printing. */
3086 return CF_PRINT_WRITE_ERROR;
3089 write_csv_finale(fh);
3092 return CF_PRINT_WRITE_ERROR;
3095 /* XXX - check for an error */
3102 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3103 union wtap_pseudo_header *pseudo_header _U_,
3104 const guint8 *pd, void *argsp)
3108 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3113 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3118 fh = ws_fopen(print_args->file, "w");
3121 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3123 write_carrays_preamble(fh);
3127 return CF_PRINT_WRITE_ERROR;
3130 /* Iterate through the list of packets, printing the packets we were
3132 ret = process_specified_packets(cf, &print_args->range,
3134 "selected packets", TRUE,
3135 write_carrays_packet, fh);
3138 /* Completed successfully. */
3141 /* Well, the user decided to abort the printing. */
3144 /* Error while printing. */
3146 return CF_PRINT_WRITE_ERROR;
3149 write_carrays_finale(fh);
3153 return CF_PRINT_WRITE_ERROR;
3160 #ifndef NEW_PACKET_LIST /* This function is not needed with the new packet list */
3162 /* Scan through the packet list and change all columns that use the
3163 "command-line-specified" time stamp format to use the current
3164 value of that format. */
3166 cf_change_time_formats(capture_file *cf)
3170 progdlg_t *progbar = NULL;
3175 GTimeVal start_time;
3176 gchar status_str[100];
3177 int progbar_nextstep;
3178 int progbar_quantum;
3179 gboolean sorted_by_frame_column;
3181 /* Adjust timestamp precision if auto is selected */
3182 cf_timestamp_auto_precision(cf);
3184 /* Are there any columns with time stamps in the "command-line-specified"
3187 XXX - we have to force the "column is writable" flag on, as it
3188 might be off from the last frame that was dissected. */
3189 col_set_writable(&cf->cinfo, TRUE);
3190 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3191 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3192 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3193 !check_col(&cf->cinfo, COL_REL_TIME) &&
3194 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3195 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3196 /* No, there aren't any columns in that format, so we have no work
3201 /* Freeze the packet list while we redo it, so we don't get any
3202 screen updates while it happens. */
3203 packet_list_freeze();
3205 /* Update the progress bar when it gets to this value. */
3206 progbar_nextstep = 0;
3207 /* When we reach the value that triggers a progress bar update,
3208 bump that value by this amount. */
3209 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3210 /* Count of packets at which we've looked. */
3212 /* Progress so far. */
3215 /* If the rows are currently sorted by the frame column then we know
3216 * the row number of each packet: it's the row number of the previously
3217 * displayed packet + 1.
3219 * Otherwise, if the display is sorted by a different column then we have
3220 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3221 * of changing the time display format O(N**2)).
3223 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3224 * the row number and walks that many elements down the clist to find
3225 * the appropriate element.)
3227 sorted_by_frame_column = FALSE;
3228 for (i = 0; i < cf->cinfo.num_cols; i++) {
3229 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3231 sorted_by_frame_column = (i == packet_list_get_sort_column());
3237 g_get_current_time(&start_time);
3239 /* Iterate through the list of packets, checking whether the packet
3240 is in a row of the summary list and, if so, whether there are
3241 any columns that show the time in the "command-line-specified"
3242 format and, if so, update that row. */
3243 for (fdata = cf->plist_start, row = -1; fdata != NULL; fdata = fdata->next) {
3244 /* Create the progress bar if necessary.
3245 We check on every iteration of the loop, so that it takes no
3246 longer than the standard time to create it (otherwise, for a
3247 large file, we might take considerably longer than that standard
3248 time in order to get to the next progress bar step). */
3249 if (progbar == NULL)
3250 progbar = delayed_create_progress_dlg("Changing", "time display",
3251 TRUE, &stop_flag, &start_time, progbar_val);
3253 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3254 when we update it, we have to run the GTK+ main loop to get it
3255 to repaint what's pending, and doing so may involve an "ioctl()"
3256 to see if there's any pending input from an X server, and doing
3257 that for every packet can be costly, especially on a big file. */
3258 if (count >= progbar_nextstep) {
3259 /* let's not divide by zero. I should never be started
3260 * with count == 0, so let's assert that
3262 g_assert(cf->count > 0);
3264 progbar_val = (gfloat) count / cf->count;
3266 if (progbar != NULL) {
3267 g_snprintf(status_str, sizeof(status_str),
3268 "%4u of %u packets", count, cf->count);
3269 update_progress_dlg(progbar, progbar_val, status_str);
3272 progbar_nextstep += progbar_quantum;
3276 /* Well, the user decided to abort the redisplay. Just stop.
3278 XXX - this leaves the time field in the old format in
3279 frames we haven't yet processed. So it goes; should we
3280 simply not offer them the option of stopping? */
3286 /* Find what row this packet is in. */
3287 if (!sorted_by_frame_column) {
3288 /* This function is O(N), so we try to avoid using it... */
3289 row = packet_list_find_row_from_data(fdata);
3291 /* ...which we do by maintaining a count of packets that are
3292 being displayed (i.e., that have passed the display filter),
3293 and using the current value of that count as the row number
3294 (which is why we can only do it when the display is sorted
3295 by the frame number). */
3296 if (fdata->flags.passed_dfilter)
3303 /* This packet is in the summary list, on row "row". */
3305 for (i = 0; i < cf->cinfo.num_cols; i++) {
3306 if (col_has_time_fmt(&cf->cinfo, i)) {
3307 /* This is one of the columns that shows the time in
3308 "command-line-specified" format; update it. */
3309 cf->cinfo.col_buf[i][0] = '\0';
3310 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3311 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3317 /* We're done redisplaying the packets; destroy the progress bar if it
3319 if (progbar != NULL)
3320 destroy_progress_dlg(progbar);
3322 /* Set the column widths of those columns that show the time in
3323 "command-line-specified" format. */
3324 for (i = 0; i < cf->cinfo.num_cols; i++) {
3325 if (col_has_time_fmt(&cf->cinfo, i)) {
3326 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3330 /* Unfreeze the packet list. */
3333 #endif /* NEW_PACKET_LIST */
3340 gboolean frame_matched;
3344 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3348 mdata.string = string;
3349 mdata.string_len = strlen(string);
3350 return find_packet(cf, match_protocol_tree, &mdata);
3354 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3356 match_data *mdata = criterion;
3359 /* Construct the protocol tree, including the displayed text */
3360 epan_dissect_init(&edt, TRUE, TRUE);
3361 /* We don't need the column information */
3362 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3364 /* Iterate through all the nodes, seeing if they have text that matches. */
3366 mdata->frame_matched = FALSE;
3367 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3368 epan_dissect_cleanup(&edt);
3369 return mdata->frame_matched;
3373 match_subtree_text(proto_node *node, gpointer data)
3375 match_data *mdata = (match_data*) data;
3376 const gchar *string = mdata->string;
3377 size_t string_len = mdata->string_len;
3378 capture_file *cf = mdata->cf;
3379 field_info *fi = PNODE_FINFO(node);
3380 gchar label_str[ITEM_LABEL_LENGTH];
3387 g_assert(fi && "dissection with an invisible proto tree?");
3389 if (mdata->frame_matched) {
3390 /* We already had a match; don't bother doing any more work. */
3394 /* Don't match invisible entries. */
3395 if (PROTO_ITEM_IS_HIDDEN(node))
3398 /* was a free format label produced? */
3400 label_ptr = fi->rep->representation;
3402 /* no, make a generic label */
3403 label_ptr = label_str;
3404 proto_item_fill_label(fi, label_str);
3407 /* Does that label match? */
3408 label_len = strlen(label_ptr);
3409 for (i = 0; i < label_len; i++) {
3410 c_char = label_ptr[i];
3412 c_char = toupper(c_char);
3413 if (c_char == string[c_match]) {
3415 if (c_match == string_len) {
3416 /* No need to look further; we have a match */
3417 mdata->frame_matched = TRUE;
3424 /* Recurse into the subtree, if it exists */
3425 if (node->first_child != NULL)
3426 proto_tree_children_foreach(node, match_subtree_text, mdata);
3430 cf_find_packet_summary_line(capture_file *cf, const char *string)
3434 mdata.string = string;
3435 mdata.string_len = strlen(string);
3436 return find_packet(cf, match_summary_line, &mdata);
3440 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3442 match_data *mdata = criterion;
3443 const gchar *string = mdata->string;
3444 size_t string_len = mdata->string_len;
3446 const char *info_column;
3447 size_t info_column_len;
3448 gboolean frame_matched = FALSE;
3454 /* Don't bother constructing the protocol tree */
3455 epan_dissect_init(&edt, FALSE, FALSE);
3456 /* Get the column information */
3457 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3459 /* Find the Info column */
3460 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3461 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3462 /* Found it. See if we match. */
3463 info_column = edt.pi.cinfo->col_data[colx];
3464 info_column_len = strlen(info_column);
3465 for (i = 0; i < info_column_len; i++) {
3466 c_char = info_column[i];
3468 c_char = toupper(c_char);
3469 if (c_char == string[c_match]) {
3471 if (c_match == string_len) {
3472 frame_matched = TRUE;
3481 epan_dissect_cleanup(&edt);
3482 return frame_matched;
3488 } cbs_t; /* "Counted byte string" */
3491 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3496 info.data_len = string_size;
3498 /* String or hex search? */
3500 /* String search - what type of string? */
3501 switch (cf->scs_type) {
3503 case SCS_ASCII_AND_UNICODE:
3504 return find_packet(cf, match_ascii_and_unicode, &info);
3507 return find_packet(cf, match_ascii, &info);
3510 return find_packet(cf, match_unicode, &info);
3513 g_assert_not_reached();
3517 return find_packet(cf, match_binary, &info);
3521 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3523 cbs_t *info = criterion;
3524 const guint8 *ascii_text = info->data;
3525 size_t textlen = info->data_len;
3526 gboolean frame_matched;
3532 frame_matched = FALSE;
3533 buf_len = fdata->pkt_len;
3534 for (i = 0; i < buf_len; i++) {
3537 c_char = toupper(c_char);
3539 if (c_char == ascii_text[c_match]) {
3541 if (c_match == textlen) {
3542 frame_matched = TRUE;
3543 cf->search_pos = i; /* Save the position of the last character
3544 for highlighting the field. */
3551 return frame_matched;
3555 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3557 cbs_t *info = criterion;
3558 const guint8 *ascii_text = info->data;
3559 size_t textlen = info->data_len;
3560 gboolean frame_matched;
3566 frame_matched = FALSE;
3567 buf_len = fdata->pkt_len;
3568 for (i = 0; i < buf_len; i++) {
3571 c_char = toupper(c_char);
3572 if (c_char == ascii_text[c_match]) {
3574 if (c_match == textlen) {
3575 frame_matched = TRUE;
3576 cf->search_pos = i; /* Save the position of the last character
3577 for highlighting the field. */
3583 return frame_matched;
3587 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3589 cbs_t *info = criterion;
3590 const guint8 *ascii_text = info->data;
3591 size_t textlen = info->data_len;
3592 gboolean frame_matched;
3598 frame_matched = FALSE;
3599 buf_len = fdata->pkt_len;
3600 for (i = 0; i < buf_len; i++) {
3603 c_char = toupper(c_char);
3604 if (c_char == ascii_text[c_match]) {
3607 if (c_match == textlen) {
3608 frame_matched = TRUE;
3609 cf->search_pos = i; /* Save the position of the last character
3610 for highlighting the field. */
3616 return frame_matched;
3620 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3622 cbs_t *info = criterion;
3623 const guint8 *binary_data = info->data;
3624 size_t datalen = info->data_len;
3625 gboolean frame_matched;
3630 frame_matched = FALSE;
3631 buf_len = fdata->pkt_len;
3632 for (i = 0; i < buf_len; i++) {
3633 if (cf->pd[i] == binary_data[c_match]) {
3635 if (c_match == datalen) {
3636 frame_matched = TRUE;
3637 cf->search_pos = i; /* Save the position of the last character
3638 for highlighting the field. */
3644 return frame_matched;
3648 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3650 return find_packet(cf, match_dfilter, sfcode);
3654 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3656 dfilter_t *sfcode = criterion;
3658 gboolean frame_matched;
3660 epan_dissect_init(&edt, TRUE, FALSE);
3661 epan_dissect_prime_dfilter(&edt, sfcode);
3662 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3663 frame_matched = dfilter_apply_edt(sfcode, &edt);
3664 epan_dissect_cleanup(&edt);
3665 return frame_matched;
3669 find_packet(capture_file *cf,
3670 gboolean (*match_function)(capture_file *, frame_data *, void *),
3673 frame_data *start_fd;
3675 frame_data *new_fd = NULL;
3676 progdlg_t *progbar = NULL;
3683 GTimeVal start_time;
3684 gchar status_str[100];
3685 int progbar_nextstep;
3686 int progbar_quantum;
3689 start_fd = cf->current_frame;
3690 if (start_fd != NULL) {
3691 /* Iterate through the list of packets, starting at the packet we've
3692 picked, calling a routine to run the filter on the packet, see if
3693 it matches, and stop if so. */
3697 /* Update the progress bar when it gets to this value. */
3698 progbar_nextstep = 0;
3699 /* When we reach the value that triggers a progress bar update,
3700 bump that value by this amount. */
3701 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3702 /* Progress so far. */
3706 g_get_current_time(&start_time);
3709 title = cf->sfilter?cf->sfilter:"";
3711 /* Create the progress bar if necessary.
3712 We check on every iteration of the loop, so that it takes no
3713 longer than the standard time to create it (otherwise, for a
3714 large file, we might take considerably longer than that standard
3715 time in order to get to the next progress bar step). */
3716 if (progbar == NULL)
3717 progbar = delayed_create_progress_dlg("Searching", title,
3718 FALSE, &stop_flag, &start_time, progbar_val);
3720 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3721 when we update it, we have to run the GTK+ main loop to get it
3722 to repaint what's pending, and doing so may involve an "ioctl()"
3723 to see if there's any pending input from an X server, and doing
3724 that for every packet can be costly, especially on a big file. */
3725 if (count >= progbar_nextstep) {
3726 /* let's not divide by zero. I should never be started
3727 * with count == 0, so let's assert that
3729 g_assert(cf->count > 0);
3731 progbar_val = (gfloat) count / cf->count;
3733 if (progbar != NULL) {
3734 g_snprintf(status_str, sizeof(status_str),
3735 "%4u of %u packets", count, cf->count);
3736 update_progress_dlg(progbar, progbar_val, status_str);
3739 progbar_nextstep += progbar_quantum;
3743 /* Well, the user decided to abort the search. Go back to the
3744 frame where we started. */
3749 /* Go past the current frame. */
3750 if (cf->sbackward) {
3751 /* Go on to the previous frame. */
3752 fdata = fdata->prev;
3753 if (fdata == NULL) {
3755 * XXX - other apps have a bit more of a detailed message
3756 * for this, and instead of offering "OK" and "Cancel",
3757 * they offer things such as "Continue" and "Cancel";
3758 * we need an API for popping up alert boxes with
3759 * {Verb} and "Cancel".
3762 if (prefs.gui_find_wrap)
3764 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3765 "%sBeginning of capture exceeded!%s\n\n"
3766 "Search is continued from the end of the capture.",
3767 simple_dialog_primary_start(), simple_dialog_primary_end());
3768 fdata = cf->plist_end; /* wrap around */
3772 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3773 "%sBeginning of capture exceeded!%s\n\n"
3774 "Try searching forwards.",
3775 simple_dialog_primary_start(), simple_dialog_primary_end());
3776 fdata = start_fd; /* stay on previous packet */
3780 /* Go on to the next frame. */
3781 fdata = fdata->next;
3782 if (fdata == NULL) {
3783 if (prefs.gui_find_wrap)
3785 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3786 "%sEnd of capture exceeded!%s\n\n"
3787 "Search is continued from the start of the capture.",
3788 simple_dialog_primary_start(), simple_dialog_primary_end());
3789 fdata = cf->plist_start; /* wrap around */
3793 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3794 "%sEnd of capture exceeded!%s\n\n"
3795 "Try searching backwards.",
3796 simple_dialog_primary_start(), simple_dialog_primary_end());
3797 fdata = start_fd; /* stay on previous packet */
3804 /* Is this packet in the display? */
3805 if (fdata->flags.passed_dfilter) {
3806 /* Yes. Load its data. */
3807 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3808 cf->pd, fdata->cap_len, &err, &err_info)) {
3809 /* Read error. Report the error, and go back to the frame
3810 where we started. */
3811 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3812 cf_read_error_message(err, err_info), cf->filename);
3817 /* Does it match the search criterion? */
3818 if ((*match_function)(cf, fdata, criterion)) {
3820 break; /* found it! */
3824 if (fdata == start_fd) {
3825 /* We're back to the frame we were on originally, and that frame
3826 doesn't match the search filter. The search failed. */
3831 /* We're done scanning the packets; destroy the progress bar if it
3833 if (progbar != NULL)
3834 destroy_progress_dlg(progbar);
3837 if (new_fd != NULL) {
3838 #ifdef NEW_PACKET_LIST
3839 /* Find and select */
3840 row = new_packet_list_find_row_from_data(fdata, TRUE);
3842 /* We found a frame. Find what row it's in. */
3843 row = packet_list_find_row_from_data(new_fd);
3844 #endif /* NEW_PACKET_LIST */
3846 /* We didn't find a row even though we know that a frame
3847 * exists that satifies the search criteria. This means that the
3848 * frame isn't being displayed currently so we can't select it. */
3849 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3850 "%sEnd of capture exceeded!%s\n\n"
3851 "The capture file is probably not fully loaded.",
3852 simple_dialog_primary_start(), simple_dialog_primary_end());
3856 #ifndef NEW_PACKET_LIST
3857 /* Select that row, make it the focus row, and make it visible. */
3858 packet_list_set_selected_row(row);
3859 #endif /* NEW_PACKET_LIST */
3860 return TRUE; /* success */
3862 return FALSE; /* failure */
3866 cf_goto_frame(capture_file *cf, guint fnumber)
3871 for (fdata = cf->plist_start; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3874 if (fdata == NULL) {
3875 /* we didn't find a packet with that packet number */
3876 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3877 "There is no packet with the packet number %u.", fnumber);
3878 return FALSE; /* we failed to go to that packet */
3880 if (!fdata->flags.passed_dfilter) {
3881 /* that packet currently isn't displayed */
3882 /* XXX - add it to the set of displayed packets? */
3883 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3884 "The packet number %u isn't currently being displayed.", fnumber);
3885 return FALSE; /* we failed to go to that packet */
3888 #ifdef NEW_PACKET_LIST
3889 row = new_packet_list_find_row_from_data(fdata, TRUE);
3891 /* We found that packet, and it's currently being displayed.
3892 Find what row it's in. */
3893 row = packet_list_find_row_from_data(fdata);
3894 g_assert(row != -1);
3896 /* Select that row, make it the focus row, and make it visible. */
3897 packet_list_set_selected_row(row);
3898 #endif /* NEW_PACKET_LIST */
3899 return TRUE; /* we got to that packet */
3903 cf_goto_top_frame(capture_file *cf _U_)
3905 #ifdef NEW_PACKET_LIST
3906 /* Find and select */
3907 new_packet_list_select_first_row();
3911 frame_data *lowest_fdata = NULL;
3913 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
3914 if (fdata->flags.passed_dfilter) {
3915 lowest_fdata = fdata;
3920 if (lowest_fdata == NULL) {
3924 /* We found that packet, and it's currently being displayed.
3925 Find what row it's in. */
3926 row = packet_list_find_row_from_data(lowest_fdata);
3927 g_assert(row != -1);
3929 /* Select that row, make it the focus row, and make it visible. */
3930 packet_list_set_selected_row(row);
3931 #endif /* NEW_PACKET_LIST */
3932 return TRUE; /* we got to that packet */
3936 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
3938 #ifdef NEW_PACKET_LIST
3939 /* Find and select */
3940 new_packet_list_select_last_row();
3944 frame_data *highest_fdata = NULL;
3946 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
3947 if (fdata->flags.passed_dfilter) {
3948 highest_fdata = fdata;
3952 if (highest_fdata == NULL) {
3956 /* We found that packet, and it's currently being displayed.
3957 Find what row it's in. */
3958 row = packet_list_find_row_from_data(highest_fdata);
3959 g_assert(row != -1);
3961 /* Select that row, make it the focus row, and make it visible. */
3962 packet_list_set_selected_row(row);
3963 #endif /* NEW_PACKET_LIST */
3964 return TRUE; /* we got to that packet */
3968 * Go to frame specified by currently selected protocol tree item.
3971 cf_goto_framenum(capture_file *cf)
3973 header_field_info *hfinfo;
3976 if (cf->finfo_selected) {
3977 hfinfo = cf->finfo_selected->hfinfo;
3979 if (hfinfo->type == FT_FRAMENUM) {
3980 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3982 return cf_goto_frame(cf, framenum);
3989 /* Select the packet on a given row. */
3991 cf_select_packet(capture_file *cf, int row)
3997 /* Get the frame data struct pointer for this frame */
3998 #ifdef NEW_PACKET_LIST
3999 fdata = new_packet_list_get_row_data(row);
4001 fdata = (frame_data *)packet_list_get_row_data(row);
4004 if (fdata == NULL) {
4005 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
4006 the first entry is added to it by "real_insert_row()", that row
4007 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
4008 our version and the vanilla GTK+ version).
4010 This means that a "select-row" signal is emitted; this causes
4011 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
4014 "cf_select_packet()" fetches, above, the data associated with the
4015 row that was selected; however, as "gtk_clist_append()", which
4016 called "real_insert_row()", hasn't yet returned, we haven't yet
4017 associated any data with that row, so we get back a null pointer.
4019 We can't assume that there's only one frame in the frame list,
4020 either, as we may be filtering the display.
4022 We therefore assume that, if "row" is 0, i.e. the first row
4023 is being selected, and "cf->first_displayed" equals
4024 "cf->last_displayed", i.e. there's only one frame being
4025 displayed, that frame is the frame we want.
4027 This means we have to set "cf->first_displayed" and
4028 "cf->last_displayed" before adding the row to the
4029 GtkCList; see the comment in "add_packet_to_packet_list()". */
4031 if (row == 0 && cf->first_displayed == cf->last_displayed)
4032 fdata = cf->first_displayed;
4035 /* If fdata _still_ isn't set simply give up. */
4036 if (fdata == NULL) {
4040 /* Get the data in that frame. */
4041 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
4042 cf->pd, fdata->cap_len, &err, &err_info)) {
4043 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4044 cf_read_error_message(err, err_info), cf->filename);
4048 /* Record that this frame is the current frame. */
4049 cf->current_frame = fdata;
4050 cf->current_row = row;
4052 /* Create the logical protocol tree. */
4053 if (cf->edt != NULL)
4054 epan_dissect_free(cf->edt);
4056 /* We don't need the columns here. */
4057 cf->edt = epan_dissect_new(TRUE, TRUE);
4059 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4062 dfilter_macro_build_ftv_cache(cf->edt->tree);
4064 cf_callback_invoke(cf_cb_packet_selected, cf);
4067 /* Unselect the selected packet, if any. */
4069 cf_unselect_packet(capture_file *cf)
4071 /* Destroy the epan_dissect_t for the unselected packet. */
4072 if (cf->edt != NULL) {
4073 epan_dissect_free(cf->edt);
4077 /* No packet is selected. */
4078 cf->current_frame = NULL;
4079 cf->current_row = 0;
4081 cf_callback_invoke(cf_cb_packet_unselected, cf);
4083 /* No protocol tree means no selected field. */
4084 cf_unselect_field(cf);
4087 /* Unset the selected protocol tree field, if any. */
4089 cf_unselect_field(capture_file *cf)
4091 cf->finfo_selected = NULL;
4093 cf_callback_invoke(cf_cb_field_unselected, cf);
4097 * Mark a particular frame.
4100 cf_mark_frame(capture_file *cf, frame_data *frame)
4102 if (! frame->flags.marked) {
4103 frame->flags.marked = TRUE;
4104 if (cf->count > cf->marked_count)
4110 * Unmark a particular frame.
4113 cf_unmark_frame(capture_file *cf, frame_data *frame)
4115 if (frame->flags.marked) {
4116 frame->flags.marked = FALSE;
4117 if (cf->marked_count > 0)
4125 } save_callback_args_t;
4128 * Save a capture to a file, in a particular format, saving either
4129 * all packets, all currently-displayed packets, or all marked packets.
4131 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4132 * up a message box for the failure.
4135 save_packet(capture_file *cf _U_, frame_data *fdata,
4136 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4139 save_callback_args_t *args = argsp;
4140 struct wtap_pkthdr hdr;
4143 /* init the wtap header for saving */
4144 hdr.ts.secs = fdata->abs_ts.secs;
4145 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4146 hdr.caplen = fdata->cap_len;
4147 hdr.len = fdata->pkt_len;
4148 hdr.pkt_encap = fdata->lnk_t;
4150 /* and save the packet */
4151 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4152 cf_write_failure_alert_box(args->fname, err);
4159 * Can this capture file be saved in any format except by copying the raw data?
4162 cf_can_save_as(capture_file *cf)
4166 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4167 /* To save a file with Wiretap, Wiretap has to handle that format,
4168 and its code to handle that format must be able to write a file
4169 with this file's encapsulation type. */
4170 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4171 /* OK, we can write it out in this type. */
4176 /* No, we couldn't save it in any format. */
4181 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4183 gchar *from_filename;
4187 save_callback_args_t callback_args;
4189 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
4191 /* don't write over an existing file. */
4192 /* this should've been already checked by our caller, just to be sure... */
4193 if (file_exists(fname)) {
4194 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4195 "%sCapture file: \"%s\" already exists!%s\n\n"
4196 "Please choose a different filename.",
4197 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4201 packet_range_process_init(range);
4204 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4205 /* We're not filtering packets, and we're saving it in the format
4206 it's already in, so we can just move or copy the raw data. */
4208 if (cf->is_tempfile) {
4209 /* The file being saved is a temporary file from a live
4210 capture, so it doesn't need to stay around under that name;
4211 first, try renaming the capture buffer file to the new name. */
4213 if (ws_rename(cf->filename, fname) == 0) {
4214 /* That succeeded - there's no need to copy the source file. */
4215 from_filename = NULL;
4218 if (errno == EXDEV) {
4219 /* They're on different file systems, so we have to copy the
4222 from_filename = cf->filename;
4224 /* The rename failed, but not because they're on different
4225 file systems - put up an error message. (Or should we
4226 just punt and try to copy? The only reason why I'd
4227 expect the rename to fail and the copy to succeed would
4228 be if we didn't have permission to remove the file from
4229 the temporary directory, and that might be fixable - but
4230 is it worth requiring the user to go off and fix it?) */
4231 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4232 file_rename_error_message(errno), fname);
4238 from_filename = cf->filename;
4241 /* It's a permanent file, so we should copy it, and not remove the
4244 from_filename = cf->filename;
4248 /* Copy the file, if we haven't moved it. */
4249 if (!copy_file_binary_mode(from_filename, fname))
4253 /* Either we're filtering packets, or we're saving in a different
4254 format; we can't do that by copying or moving the capture file,
4255 we have to do it by writing the packets out in Wiretap. */
4256 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4259 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4263 /* XXX - we let the user save a subset of the packets.
4265 If we do that, should we make that file the current file? If so,
4266 it means we can no longer get at the other packets. What does
4269 /* Iterate through the list of packets, processing the packets we were
4272 XXX - we've already called "packet_range_process_init(range)", but
4273 "process_specified_packets()" will do it again. Fortunately,
4274 that's harmless in this case, as we haven't done anything to
4275 "range" since we initialized it. */
4276 callback_args.pdh = pdh;
4277 callback_args.fname = fname;
4278 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4279 TRUE, save_packet, &callback_args)) {
4282 /* Completed successfully. */
4286 /* The user decided to abort the saving.
4287 XXX - remove the output file? */
4291 /* Error while saving. */
4292 wtap_dump_close(pdh, &err);
4296 if (!wtap_dump_close(pdh, &err)) {
4297 cf_close_failure_alert_box(fname, err);
4302 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
4304 if (packet_range_process_all(range)) {
4305 /* We saved the entire capture, not just some packets from it.
4306 Open and read the file we saved it to.
4308 XXX - this is somewhat of a waste; we already have the
4309 packets, all this gets us is updated file type information
4310 (which we could just stuff into "cf"), and having the new
4311 file be the one we have opened and from which we're reading
4312 the data, and it means we have to spend time opening and
4313 reading the file, which could be a significant amount of
4314 time if the file is large. */
4315 cf->user_saved = TRUE;
4317 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4318 /* XXX - report errors if this fails?
4319 What should we return if it fails or is aborted? */
4320 switch (cf_read(cf)) {
4324 /* Just because we got an error, that doesn't mean we were unable
4325 to read any of the file; we handle what we could get from the
4329 case CF_READ_ABORTED:
4330 /* The user bailed out of re-reading the capture file; the
4331 capture file has been closed - just return (without
4332 changing any menu settings; "cf_close()" set them
4333 correctly for the "no capture file open" state). */
4336 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4342 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4347 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4348 gboolean for_writing, int file_type)
4351 /* Wiretap error. */
4354 case WTAP_ERR_NOT_REGULAR_FILE:
4355 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4356 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4360 case WTAP_ERR_RANDOM_OPEN_PIPE:
4361 /* Seen only when opening a capture file for reading. */
4362 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4363 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4367 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4368 /* Seen only when opening a capture file for reading. */
4369 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4370 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4374 case WTAP_ERR_UNSUPPORTED:
4375 /* Seen only when opening a capture file for reading. */
4376 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4377 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4379 filename, err_info);
4383 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4384 /* Seen only when opening a capture file for writing. */
4385 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4386 "The file \"%s\" is a pipe, and %s capture files can't be "
4387 "written to a pipe.",
4388 filename, wtap_file_type_string(file_type));
4391 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4392 /* Seen only when opening a capture file for writing. */
4393 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4394 "Wireshark doesn't support writing capture files in that format.");
4397 case WTAP_ERR_UNSUPPORTED_ENCAP:
4399 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4400 "Wireshark can't save this capture in that format.");
4402 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4403 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4405 filename, err_info);
4410 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4412 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4413 "Wireshark can't save this capture in that format.");
4415 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4416 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4421 case WTAP_ERR_BAD_RECORD:
4422 /* Seen only when opening a capture file for reading. */
4423 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4424 "The file \"%s\" appears to be damaged or corrupt.\n"
4426 filename, err_info);
4430 case WTAP_ERR_CANT_OPEN:
4432 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4433 "The file \"%s\" could not be created for some unknown reason.",
4436 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4437 "The file \"%s\" could not be opened for some unknown reason.",
4442 case WTAP_ERR_SHORT_READ:
4443 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4444 "The file \"%s\" appears to have been cut short"
4445 " in the middle of a packet or other data.",
4449 case WTAP_ERR_SHORT_WRITE:
4450 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4451 "A full header couldn't be written to the file \"%s\".",
4455 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4456 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4457 "Gzip compression not supported by this file type.");
4461 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4462 "The file \"%s\" could not be %s: %s.",
4464 for_writing ? "created" : "opened",
4465 wtap_strerror(err));
4470 open_failure_alert_box(filename, err, for_writing);
4475 file_rename_error_message(int err)
4478 static char errmsg_errno[1024+1];
4483 errmsg = "The path to the file \"%s\" doesn't exist.";
4487 errmsg = "You don't have permission to move the capture file to \"%s\".";
4491 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4492 "The file \"%%s\" could not be moved: %s.",
4493 wtap_strerror(err));
4494 errmsg = errmsg_errno;
4501 cf_read_error_message(int err, gchar *err_info)
4503 static char errmsg_errno[1024+1];
4507 case WTAP_ERR_UNSUPPORTED_ENCAP:
4508 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4509 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4514 case WTAP_ERR_BAD_RECORD:
4515 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4516 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4517 wtap_strerror(err), err_info);
4522 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4523 "An error occurred while reading from the file \"%%s\": %s.",
4524 wtap_strerror(err));
4527 return errmsg_errno;
4531 cf_write_failure_alert_box(const char *filename, int err)
4534 /* Wiretap error. */
4535 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4536 "An error occurred while writing to the file \"%s\": %s.",
4537 filename, wtap_strerror(err));
4540 write_failure_alert_box(filename, err);
4544 /* Check for write errors - if the file is being written to an NFS server,
4545 a write error may not show up until the file is closed, as NFS clients
4546 might not send writes to the server until the "write()" call finishes,
4547 so that the write may fail on the server but the "write()" may succeed. */
4549 cf_close_failure_alert_box(const char *filename, int err)
4552 /* Wiretap error. */
4555 case WTAP_ERR_CANT_CLOSE:
4556 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4557 "The file \"%s\" couldn't be closed for some unknown reason.",
4561 case WTAP_ERR_SHORT_WRITE:
4562 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4563 "Not all the packets could be written to the file \"%s\".",
4568 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4569 "An error occurred while closing the file \"%s\": %s.",
4570 filename, wtap_strerror(err));
4575 We assume that a close error from the OS is really a write error. */
4576 write_failure_alert_box(filename, err);
4580 /* Reload the current capture file. */
4582 cf_reload(capture_file *cf) {
4584 gboolean is_tempfile;
4587 /* If the file could be opened, "cf_open()" calls "cf_close()"
4588 to get rid of state for the old capture file before filling in state
4589 for the new capture file. "cf_close()" will remove the file if
4590 it's a temporary file; we don't want that to happen (for one thing,
4591 it'd prevent subsequent reopens from working). Remember whether it's
4592 a temporary file, mark it as not being a temporary file, and then
4593 reopen it as the type of file it was.
4595 Also, "cf_close()" will free "cf->filename", so we must make
4596 a copy of it first. */
4597 filename = g_strdup(cf->filename);
4598 is_tempfile = cf->is_tempfile;
4599 cf->is_tempfile = FALSE;
4600 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4601 switch (cf_read(cf)) {
4605 /* Just because we got an error, that doesn't mean we were unable
4606 to read any of the file; we handle what we could get from the
4610 case CF_READ_ABORTED:
4611 /* The user bailed out of re-reading the capture file; the
4612 capture file has been closed - just free the capture file name
4613 string and return (without changing the last containing
4619 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4620 Instead, the file was left open, so we should restore "cf->is_tempfile"
4623 XXX - change the menu? Presumably "cf_open()" will do that;
4624 make sure it does! */
4625 cf->is_tempfile = is_tempfile;
4627 /* "cf_open()" made a copy of the file name we handed it, so
4628 we should free up our copy. */