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 don't 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->ignored_count = 0;
314 cf->drops_known = FALSE;
316 cf->snap = wtap_snapshot_length(cf->wth);
318 /* Snapshot length not known. */
319 cf->has_snap = FALSE;
320 cf->snap = WTAP_MAX_PACKET_SIZE;
324 nstime_set_zero(&cf->elapsed_time);
325 nstime_set_unset(&first_ts);
326 nstime_set_unset(&prev_dis_ts);
327 nstime_set_unset(&prev_cap_ts);
330 #if GLIB_CHECK_VERSION(2,10,0)
332 /* memory chunks have been deprecated in favor of the slice allocator,
333 * which has been added in 2.10
335 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
337 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
339 g_assert(cf->plist_chunk);
342 #ifdef NEW_PACKET_LIST
343 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
344 cf_timestamp_auto_precision(cf);
346 new_packet_list_queue_draw();
348 /* change the time formats now, as we might have a new precision */
349 cf_change_time_formats(cf);
351 fileset_file_opened(fname);
353 if(cf->cd_t == WTAP_FILE_BER) {
354 /* tell the BER dissector the file name */
355 ber_set_filename(cf->filename);
361 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
367 * Reset the state for the currently closed file, but don't do the
368 * UI callbacks; this is for use in "cf_open()", where we don't
369 * want the UI to go from "file open" to "file closed" back to
370 * "file open", we want it to go from "old file open" to "new file
371 * open and being read".
374 cf_reset_state(capture_file *cf)
376 /* Die if we're in the middle of reading a file. */
377 g_assert(cf->state != FILE_READ_IN_PROGRESS);
383 /* We have no file open... */
384 if (cf->filename != NULL) {
385 /* If it's a temporary file, remove it. */
387 ws_unlink(cf->filename);
388 g_free(cf->filename);
391 /* ...which means we have nothing to save. */
392 cf->user_saved = FALSE;
394 #if GLIB_CHECK_VERSION(2,10,0)
395 if (cf->plist_start != NULL)
396 g_slice_free_chain(frame_data, cf->plist_start, next);
398 /* memory chunks have been deprecated in favor of the slice allocator,
399 * which has been added in 2.10
401 if (cf->plist_chunk != NULL) {
402 g_mem_chunk_destroy(cf->plist_chunk);
403 cf->plist_chunk = NULL;
406 dfilter_free(cf->rfcode);
408 cf->plist_start = NULL;
409 cf->plist_end = NULL;
410 cf_unselect_packet(cf); /* nothing to select */
411 cf->first_displayed = NULL;
412 cf->last_displayed = NULL;
414 /* No frame selected, no field in that frame selected. */
415 cf->current_frame = NULL;
417 cf->finfo_selected = NULL;
419 /* Clear the packet list. */
420 #ifdef NEW_PACKET_LIST
421 new_packet_list_freeze();
422 new_packet_list_clear();
423 new_packet_list_thaw();
425 packet_list_freeze();
432 nstime_set_zero(&cf->elapsed_time);
434 reset_tap_listeners();
436 /* We have no file open. */
437 cf->state = FILE_CLOSED;
439 fileset_file_closed();
442 /* Reset everything to a pristine state */
444 cf_close(capture_file *cf)
446 /* do GUI things even if file is already closed,
447 * e.g. to cleanup things if a capture couldn't be started */
448 cf_callback_invoke(cf_cb_file_closing, cf);
450 /* close things, if not already closed before */
451 if(cf->state != FILE_CLOSED) {
452 color_filters_cleanup();
454 cleanup_dissection();
457 cf_callback_invoke(cf_cb_file_closed, cf);
460 /* an out of memory exception occured, wait for a user button press to exit */
461 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
466 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
470 progbar_val = (gfloat) file_pos / (gfloat) size;
471 if (progbar_val > 1.0) {
472 /* The file probably grew while we were reading it.
473 Update file size, and try again. */
474 size = wtap_file_size(cf->wth, NULL);
476 progbar_val = (gfloat) file_pos / (gfloat) size;
477 /* If it's still > 1, either "wtap_file_size()" failed (in which
478 case there's not much we can do about it), or the file
479 *shrank* (in which case there's not much we can do about
480 it); just clip the progress value at 1.0. */
481 if (progbar_val > 1.0f)
488 cf_read(capture_file *cf, gboolean from_save)
492 const gchar *name_ptr;
494 char errmsg_errno[1024+1];
496 progdlg_t *volatile progbar = NULL;
498 volatile gint64 size;
499 volatile float progbar_val;
501 gchar status_str[100];
502 volatile gint64 progbar_nextstep;
503 volatile gint64 progbar_quantum;
505 gboolean filtering_tap_listeners;
507 volatile int count = 0;
509 volatile int displayed_once = 0;
513 /* Compile the current display filter.
514 * We assume this will not fail since cf->dfilter is only set in
515 * cf_filter IFF the filter was valid.
517 compiled = dfilter_compile(cf->dfilter, &dfcode);
518 g_assert(!cf->dfilter || (compiled && dfcode));
520 /* Do we have any tap listeners with filters? */
521 filtering_tap_listeners = have_filtering_tap_listeners();
523 /* Get the union of the flags for all tap listeners. */
524 tap_flags = union_of_tap_listener_flags();
526 reset_tap_listeners();
528 name_ptr = get_basename(cf->filename);
530 if (from_save == FALSE)
531 cf_callback_invoke(cf_cb_file_read_started, cf);
533 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
535 /* Find the size of the file. */
536 size = wtap_file_size(cf->wth, NULL);
538 /* Update the progress bar when it gets to this value. */
539 progbar_nextstep = 0;
540 /* When we reach the value that triggers a progress bar update,
541 bump that value by this amount. */
543 progbar_quantum = size/N_PROGBAR_UPDATES;
544 if (progbar_quantum < MIN_QUANTUM)
545 progbar_quantum = MIN_QUANTUM;
548 /* Progress so far. */
551 #ifdef NEW_PACKET_LIST
552 new_packet_list_freeze();
554 packet_list_freeze();
558 g_get_current_time(&start_time);
560 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
563 /* Create the progress bar if necessary.
564 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
566 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
567 progbar_val = calc_progbar_val( cf, size, data_offset);
568 if (from_save == FALSE)
569 progbar = delayed_create_progress_dlg("Loading", name_ptr,
570 TRUE, &stop_flag, &start_time, progbar_val);
572 progbar = delayed_create_progress_dlg("Saving", name_ptr,
573 TRUE, &stop_flag, &start_time, progbar_val);
576 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
577 when we update it, we have to run the GTK+ main loop to get it
578 to repaint what's pending, and doing so may involve an "ioctl()"
579 to see if there's any pending input from an X server, and doing
580 that for every packet can be costly, especially on a big file. */
581 if (data_offset >= progbar_nextstep) {
582 if (progbar != NULL) {
583 progbar_val = calc_progbar_val( cf, size, data_offset);
584 /* update the packet lists content on the first run or frequently on very large files */
585 /* (on smaller files the display update takes longer than reading the file) */
587 if (progbar_quantum > 500000 || displayed_once == 0) {
588 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
590 #ifdef NEW_PACKET_LIST
591 new_packet_list_thaw();
592 if (auto_scroll_live)
593 new_packet_list_moveto_end();
594 new_packet_list_freeze();
597 if (auto_scroll_live)
598 packet_list_moveto_end();
599 packet_list_freeze();
600 #endif /* NEW_PACKET_LIST */
603 #endif /* HAVE_LIBPCAP */
604 g_snprintf(status_str, sizeof(status_str),
605 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
606 data_offset / 1024, size / 1024);
607 update_progress_dlg(progbar, progbar_val, status_str);
609 progbar_nextstep += progbar_quantum;
614 /* Well, the user decided to abort the read. He/She will be warned and
615 it might be enough for him/her to work with the already loaded
617 This is especially true for very large capture files, where you don't
618 want to wait loading the whole file (which may last minutes or even
619 hours even on fast machines) just to see that it was the wrong file. */
623 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
625 CATCH(OutOfMemoryError) {
628 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
629 "%sOut Of Memory!%s\n"
631 "Sorry, but Wireshark has to terminate now!\n"
633 "Some infos / workarounds can be found at:\n"
634 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
635 simple_dialog_primary_start(), simple_dialog_primary_end());
636 /* we have to terminate, as we cannot recover from the memory error */
637 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
639 main_window_update();
640 /* XXX - how to avoid a busy wait? */
648 /* Cleanup and release all dfilter resources */
650 dfilter_free(dfcode);
653 /* We're done reading the file; destroy the progress bar if it was created. */
655 destroy_progress_dlg(progbar);
657 /* We're done reading sequentially through the file. */
658 cf->state = FILE_READ_DONE;
660 /* Close the sequential I/O side, to free up memory it requires. */
661 wtap_sequential_close(cf->wth);
663 /* Allow the protocol dissectors to free up memory that they
664 * don't need after the sequential run-through of the packets. */
665 postseq_cleanup_all_protocols();
667 /* compute the time it took to load the file */
668 compute_elapsed(&start_time);
670 /* Set the file encapsulation type now; we don't know what it is until
671 we've looked at all the packets, as we don't know until then whether
672 there's more than one type (and thus whether it's
673 WTAP_ENCAP_PER_PACKET). */
674 cf->lnk_t = wtap_file_encap(cf->wth);
676 cf->current_frame = cf->first_displayed;
679 #ifdef NEW_PACKET_LIST
680 new_packet_list_thaw();
684 if (from_save == FALSE)
685 cf_callback_invoke(cf_cb_file_read_finished, cf);
687 cf_callback_invoke(cf_cb_file_save_finished, cf);
689 /* If we have any displayed packets to select, select the first of those
690 packets by making the first row the selected row. */
691 if (cf->first_displayed != NULL){
692 #ifdef NEW_PACKET_LIST
693 new_packet_list_select_first_row();
695 packet_list_select_row(0);
696 #endif /* NEW_PACKET_LIST */
700 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
701 "%sFile loading was cancelled!%s\n"
703 "The remaining packets in the file were discarded.\n"
705 "As a lot of packets from the original file will be missing,\n"
706 "remember to be careful when saving the current content to a file.\n",
707 simple_dialog_primary_start(), simple_dialog_primary_end());
708 return CF_READ_ERROR;
712 /* Put up a message box noting that the read failed somewhere along
713 the line. Don't throw out the stuff we managed to read, though,
717 case WTAP_ERR_UNSUPPORTED_ENCAP:
718 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
719 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
722 errmsg = errmsg_errno;
725 case WTAP_ERR_CANT_READ:
726 errmsg = "An attempt to read from the capture file failed for"
727 " some unknown reason.";
730 case WTAP_ERR_SHORT_READ:
731 errmsg = "The capture file appears to have been cut short"
732 " in the middle of a packet.";
735 case WTAP_ERR_BAD_RECORD:
736 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
737 "The capture file appears to be damaged or corrupt.\n(%s)",
740 errmsg = errmsg_errno;
744 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
745 "An error occurred while reading the"
746 " capture file: %s.", wtap_strerror(err));
747 errmsg = errmsg_errno;
750 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
751 return CF_READ_ERROR;
758 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
760 cf_status_t cf_status;
762 cf_status = cf_open(cf, fname, is_tempfile, err);
767 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
769 gint64 data_offset = 0;
771 volatile int newly_displayed_packets = 0;
773 gboolean filtering_tap_listeners;
775 volatile gboolean visible = FALSE;
778 /* Compile the current display filter.
779 * We assume this will not fail since cf->dfilter is only set in
780 * cf_filter IFF the filter was valid.
782 compiled = dfilter_compile(cf->dfilter, &dfcode);
783 g_assert(!cf->dfilter || (compiled && dfcode));
785 /* Do we have any tap listeners with filters? */
786 filtering_tap_listeners = have_filtering_tap_listeners();
788 /* Get the union of the flags for all tap listeners. */
789 tap_flags = union_of_tap_listener_flags();
793 #ifdef NEW_PACKET_LIST
794 new_packet_list_check_end();
795 /* Don't freeze/thaw the list when doing live capture */
796 /*new_packet_list_freeze();*/
798 packet_list_check_end();
799 packet_list_freeze();
802 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
804 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
805 if (cf->state == FILE_READ_ABORTED) {
806 /* Well, the user decided to exit Wireshark. Break out of the
807 loop, and let the code below (which is called even if there
808 aren't any packets left to read) exit. */
812 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
813 data_offset) != -1) {
815 newly_displayed_packets++;
820 CATCH(OutOfMemoryError) {
823 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
824 "%sOut Of Memory!%s\n"
826 "Sorry, but Wireshark has to terminate now!\n"
828 "The capture file is not lost, it can be found at:\n"
831 "Some infos / workarounds can be found at:\n"
832 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
833 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
834 /* we have to terminate, as we cannot recover from the memory error */
835 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
837 main_window_update();
838 /* XXX - how to avoid a busy wait? */
841 #ifdef NEW_PACKET_LIST
842 /* Don't freeze/thaw the list when doing live capture */
843 /*new_packet_list_thaw();*/
847 return CF_READ_ABORTED;
853 /* Cleanup and release all dfilter resources */
855 dfilter_free(dfcode);
858 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
859 cf->count, cf->state, *err);*/
861 #ifdef NEW_PACKET_LIST
862 /* Don't freeze/thaw the list when doing live capture */
863 /*new_packet_list_thaw();*/
864 /* With the new packet list the first packet
865 * isn't automatically selected.
867 if(!cf->current_frame)
868 new_packet_list_select_first_row();
870 /* XXX - this causes "flickering" of the list */
874 /* moving to the end of the packet list - if the user requested so and
875 we have some new packets. */
876 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
877 #ifdef NEW_PACKET_LIST
879 new_packet_list_moveto_end();
881 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
882 packet_list_thaw() is done, see bugzilla 1188 */
883 /* XXX - this cheats and looks inside the packet list to find the final
885 packet_list_moveto_end();
886 #endif /* NEW_PACKET_LIST */
888 if (cf->state == FILE_READ_ABORTED) {
889 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
890 so that our caller can kill off the capture child process;
891 this will cause an EOF on the pipe from the child, so
892 "cf_finish_tail()" will be called, and it will clean up
894 return CF_READ_ABORTED;
895 } else if (*err != 0) {
896 /* We got an error reading the capture file.
897 XXX - pop up a dialog box instead? */
898 g_warning("Error \"%s\" while reading: \"%s\"\n",
899 wtap_strerror(*err), cf->filename);
901 return CF_READ_ERROR;
907 cf_finish_tail(capture_file *cf, int *err)
912 gboolean filtering_tap_listeners;
916 /* Compile the current display filter.
917 * We assume this will not fail since cf->dfilter is only set in
918 * cf_filter IFF the filter was valid.
920 compiled = dfilter_compile(cf->dfilter, &dfcode);
921 g_assert(!cf->dfilter || (compiled && dfcode));
923 /* Do we have any tap listeners with filters? */
924 filtering_tap_listeners = have_filtering_tap_listeners();
926 /* Get the union of the flags for all tap listeners. */
927 tap_flags = union_of_tap_listener_flags();
929 if(cf->wth == NULL) {
931 return CF_READ_ERROR;
934 #ifdef NEW_PACKET_LIST
935 new_packet_list_check_end();
936 /* Don't freeze/thaw the list when doing live capture */
937 /*new_packet_list_freeze();*/
939 packet_list_check_end();
940 packet_list_freeze();
943 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
944 if (cf->state == FILE_READ_ABORTED) {
945 /* Well, the user decided to abort the read. Break out of the
946 loop, and let the code below (which is called even if there
947 aren't any packets left to read) exit. */
950 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
953 /* Cleanup and release all dfilter resources */
955 dfilter_free(dfcode);
958 #ifdef NEW_PACKET_LIST
959 /* Don't freeze/thaw the list when doing live capture */
960 /*new_packet_list_thaw();*/
965 if (cf->state == FILE_READ_ABORTED) {
966 /* Well, the user decided to abort the read. We're only called
967 when the child capture process closes the pipe to us (meaning
968 it's probably exited), so we can just close the capture
969 file; we return CF_READ_ABORTED so our caller can do whatever
970 is appropriate when that happens. */
972 return CF_READ_ABORTED;
975 if (auto_scroll_live && cf->plist_end != NULL)
976 #ifdef NEW_PACKET_LIST
977 new_packet_list_moveto_end();
979 /* XXX - this cheats and looks inside the packet list to find the final
981 packet_list_moveto_end();
984 /* We're done reading sequentially through the file. */
985 cf->state = FILE_READ_DONE;
987 /* We're done reading sequentially through the file; close the
988 sequential I/O side, to free up memory it requires. */
989 wtap_sequential_close(cf->wth);
991 /* Allow the protocol dissectors to free up memory that they
992 * don't need after the sequential run-through of the packets. */
993 postseq_cleanup_all_protocols();
995 /* Set the file encapsulation type now; we don't know what it is until
996 we've looked at all the packets, as we don't know until then whether
997 there's more than one type (and thus whether it's
998 WTAP_ENCAP_PER_PACKET). */
999 cf->lnk_t = wtap_file_encap(cf->wth);
1002 /* We got an error reading the capture file.
1003 XXX - pop up a dialog box? */
1004 return CF_READ_ERROR;
1009 #endif /* HAVE_LIBPCAP */
1012 cf_get_display_name(capture_file *cf)
1014 const gchar *displayname;
1016 /* Return a name to use in displays */
1017 if (!cf->is_tempfile) {
1018 /* Get the last component of the file name, and use that. */
1020 displayname = get_basename(cf->filename);
1022 displayname="(No file)";
1025 /* The file we read is a temporary file from a live capture;
1026 we don't mention its name. */
1027 displayname = "(Untitled)";
1032 /* XXX - use a macro instead? */
1034 cf_get_packet_count(capture_file *cf)
1039 /* XXX - use a macro instead? */
1041 cf_set_packet_count(capture_file *cf, int packet_count)
1043 cf->count = packet_count;
1046 /* XXX - use a macro instead? */
1048 cf_is_tempfile(capture_file *cf)
1050 return cf->is_tempfile;
1053 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1055 cf->is_tempfile = is_tempfile;
1059 /* XXX - use a macro instead? */
1060 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1062 cf->drops_known = drops_known;
1065 /* XXX - use a macro instead? */
1066 void cf_set_drops(capture_file *cf, guint32 drops)
1071 /* XXX - use a macro instead? */
1072 gboolean cf_get_drops_known(capture_file *cf)
1074 return cf->drops_known;
1077 /* XXX - use a macro instead? */
1078 guint32 cf_get_drops(capture_file *cf)
1083 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1085 cf->rfcode = rfcode;
1088 #ifdef NEW_PACKET_LIST
1090 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1091 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1093 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1095 gboolean add_to_packet_list)
1097 gboolean create_proto_tree = FALSE;
1102 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1104 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1105 &first_ts, &prev_dis_ts, &prev_cap_ts);
1108 + we have a display filter and are re-applying it;
1109 + we have tap listeners with filters;
1110 + we have tap listeners that require a protocol tree;
1112 allocate a protocol tree root node, so that we'll construct
1113 a protocol tree against which a filter expression can be
1115 if ((dfcode != NULL && refilter) ||
1116 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1117 create_proto_tree = TRUE;
1119 /* Dissect the frame. */
1120 epan_dissect_init(&edt, create_proto_tree, FALSE);
1122 if (dfcode != NULL && refilter) {
1123 epan_dissect_prime_dfilter(&edt, dfcode);
1126 tap_queue_init(&edt);
1127 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1128 tap_push_tapped_queue(&edt);
1130 /* If we have a display filter, apply it if we're refiltering, otherwise
1131 leave the "passed_dfilter" flag alone.
1133 If we don't have a display filter, set "passed_dfilter" to 1. */
1134 if (dfcode != NULL) {
1136 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1139 fdata->flags.passed_dfilter = 1;
1141 if (add_to_packet_list) {
1142 /* We fill the needed columns from new_packet_list */
1143 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1146 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1148 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1150 /* If we haven't yet seen the first frame, this is it.
1152 XXX - we must do this before we add the row to the display,
1153 as, if the display's GtkCList's selection mode is
1154 GTK_SELECTION_BROWSE, when the first entry is added to it,
1155 "cf_select_packet()" will be called, and it will fetch the row
1156 data for the 0th row, and will get a null pointer rather than
1157 "fdata", as "gtk_clist_append()" won't yet have returned and
1158 thus "gtk_clist_set_row_data()" won't yet have been called.
1160 We thus need to leave behind bread crumbs so that
1161 "cf_select_packet()" can find this frame. See the comment
1162 in "cf_select_packet()". */
1163 if (cf->first_displayed == NULL)
1164 cf->first_displayed = fdata;
1166 /* This is the last frame we've seen so far. */
1167 cf->last_displayed = fdata;
1169 cf->displayed_count++;
1172 epan_dissect_cleanup(&edt);
1179 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1180 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1182 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1184 gboolean add_to_packet_list _U_)
1186 gboolean create_proto_tree = FALSE;
1193 /* just add some value here until we know if it is being displayed or not */
1194 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1196 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1197 &first_ts, &prev_dis_ts, &prev_cap_ts);
1201 we have a display filter and are re-applying it;
1203 we have a list of color filters;
1205 we have tap listeners with filters;
1207 we have tap listeners that require a protocol tree;
1209 we have custom columns;
1211 allocate a protocol tree root node, so that we'll construct
1212 a protocol tree against which a filter expression can be
1214 if ((dfcode != NULL && refilter) ||
1215 color_filters_used() ||
1216 have_custom_cols(cinfo) ||
1217 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1218 create_proto_tree = TRUE;
1220 /* Dissect the frame. */
1221 epan_dissect_init(&edt, create_proto_tree, FALSE);
1223 if (dfcode != NULL && refilter) {
1224 epan_dissect_prime_dfilter(&edt, dfcode);
1227 /* prepare color filters */
1228 color_filters_prime_edt(&edt);
1229 col_custom_prime_edt(&edt, cinfo);
1231 tap_queue_init(&edt);
1232 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1233 tap_push_tapped_queue(&edt);
1235 /* If we have a display filter, apply it if we're refiltering, otherwise
1236 leave the "passed_dfilter" flag alone.
1238 If we don't have a display filter, set "passed_dfilter" to 1. */
1239 if (dfcode != NULL) {
1241 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1244 fdata->flags.passed_dfilter = 1;
1246 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1248 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1250 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1252 /* If we haven't yet seen the first frame, this is it.
1254 XXX - we must do this before we add the row to the display,
1255 as, if the display's GtkCList's selection mode is
1256 GTK_SELECTION_BROWSE, when the first entry is added to it,
1257 "cf_select_packet()" will be called, and it will fetch the row
1258 data for the 0th row, and will get a null pointer rather than
1259 "fdata", as "gtk_clist_append()" won't yet have returned and
1260 thus "gtk_clist_set_row_data()" won't yet have been called.
1262 We thus need to leave behind bread crumbs so that
1263 "cf_select_packet()" can find this frame. See the comment
1264 in "cf_select_packet()". */
1265 if (cf->first_displayed == NULL)
1266 cf->first_displayed = fdata;
1268 /* This is the last frame we've seen so far. */
1269 cf->last_displayed = fdata;
1271 row = packet_list_append(cinfo->col_data, fdata);
1273 /* colorize packet: first apply color filters
1274 * then if packet is marked, use preferences to overwrite color
1275 * we do both to make sure that when a packet gets un-marked, the
1276 * color will be correctly set (fixes bug 2038)
1278 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1279 if (fdata->flags.marked) {
1280 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1282 if (fdata->flags.ignored) {
1283 packet_list_set_colors(row, &prefs.gui_ignored_fg, &prefs.gui_ignored_bg);
1286 cf->displayed_count++;
1289 epan_dissect_cleanup(&edt);
1294 /* read in a new packet */
1295 /* returns the row of the new packet in the packet list or -1 if not displayed */
1297 read_packet(capture_file *cf, dfilter_t *dfcode,
1298 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1300 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1301 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1302 const guchar *buf = wtap_buf_ptr(cf->wth);
1309 /* Allocate the next list entry, and add it to the list.
1310 * memory chunks have been deprecated in favor of the slice allocator,
1311 * which has been added in 2.10
1313 #if GLIB_CHECK_VERSION(2,10,0)
1314 fdata = g_slice_new(frame_data);
1316 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1319 frame_data_init(fdata, cf->count, phdr, offset, cum_bytes);
1321 #ifdef NEW_PACKET_LIST
1322 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1323 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1329 epan_dissect_init(&edt, TRUE, FALSE);
1330 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1331 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1332 passed = dfilter_apply_edt(cf->rfcode, &edt);
1333 epan_dissect_cleanup(&edt);
1337 cap_file_add_fdata(cf, fdata);
1339 cf->f_datalen = offset + fdata->cap_len;
1341 if (!cf->redissecting) {
1342 row = add_packet_to_packet_list(fdata, cf, dfcode,
1343 filtering_tap_listeners, tap_flags,
1344 pseudo_header, buf, TRUE, TRUE);
1347 /* We didn't pass read filter so roll back count */
1350 /* XXX - if we didn't have read filters, or if we could avoid
1351 allocating the "frame_data" structure until we knew whether
1352 the frame passed the read filter, we could use a G_ALLOC_ONLY
1355 ...but, at least in one test I did, where I just made the chunk
1356 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1357 seem to save a noticeable amount of time or space. */
1358 #if GLIB_CHECK_VERSION(2,10,0)
1359 /* memory chunks have been deprecated in favor of the slice allocator,
1360 * which has been added in 2.10
1362 g_slice_free(frame_data,fdata);
1364 g_mem_chunk_free(cf->plist_chunk, fdata);
1372 cf_merge_files(char **out_filenamep, int in_file_count,
1373 char *const *in_filenames, int file_type, gboolean do_append)
1375 merge_in_file_t *in_files;
1381 int open_err, read_err, write_err, close_err;
1385 char errmsg_errno[1024+1];
1387 gboolean got_read_error = FALSE, got_write_error = FALSE;
1389 progdlg_t *progbar = NULL;
1391 gint64 f_len, file_pos;
1393 GTimeVal start_time;
1394 gchar status_str[100];
1395 gint64 progbar_nextstep;
1396 gint64 progbar_quantum;
1398 /* open the input files */
1399 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1400 &open_err, &err_info, &err_fileno)) {
1402 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1407 if (*out_filenamep != NULL) {
1408 out_filename = *out_filenamep;
1409 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1413 out_fd = create_tempfile(&tmpname, "wireshark");
1416 out_filename = g_strdup(tmpname);
1417 *out_filenamep = out_filename;
1421 merge_close_in_files(in_file_count, in_files);
1423 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1427 pdh = wtap_dump_fdopen(out_fd, file_type,
1428 merge_select_frame_type(in_file_count, in_files),
1429 merge_max_snapshot_length(in_file_count, in_files),
1430 FALSE /* compressed */, &open_err);
1433 merge_close_in_files(in_file_count, in_files);
1435 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1440 /* Get the sum of the sizes of all the files. */
1442 for (i = 0; i < in_file_count; i++)
1443 f_len += in_files[i].size;
1445 /* Update the progress bar when it gets to this value. */
1446 progbar_nextstep = 0;
1447 /* When we reach the value that triggers a progress bar update,
1448 bump that value by this amount. */
1449 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1450 /* Progress so far. */
1454 g_get_current_time(&start_time);
1456 /* do the merge (or append) */
1459 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1462 wth = merge_read_packet(in_file_count, in_files, &read_err,
1466 got_read_error = TRUE;
1470 /* Get the sum of the data offsets in all of the files. */
1472 for (i = 0; i < in_file_count; i++)
1473 data_offset += in_files[i].data_offset;
1475 /* Create the progress bar if necessary.
1476 We check on every iteration of the loop, so that it takes no
1477 longer than the standard time to create it (otherwise, for a
1478 large file, we might take considerably longer than that standard
1479 time in order to get to the next progress bar step). */
1480 if (progbar == NULL) {
1481 progbar = delayed_create_progress_dlg("Merging", "files",
1482 FALSE, &stop_flag, &start_time, progbar_val);
1485 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1486 when we update it, we have to run the GTK+ main loop to get it
1487 to repaint what's pending, and doing so may involve an "ioctl()"
1488 to see if there's any pending input from an X server, and doing
1489 that for every packet can be costly, especially on a big file. */
1490 if (data_offset >= progbar_nextstep) {
1491 /* Get the sum of the seek positions in all of the files. */
1493 for (i = 0; i < in_file_count; i++)
1494 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1495 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1496 if (progbar_val > 1.0f) {
1497 /* Some file probably grew while we were reading it.
1498 That "shouldn't happen", so we'll just clip the progress
1502 if (progbar != NULL) {
1503 g_snprintf(status_str, sizeof(status_str),
1504 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1505 file_pos / 1024, f_len / 1024);
1506 update_progress_dlg(progbar, progbar_val, status_str);
1508 progbar_nextstep += progbar_quantum;
1512 /* Well, the user decided to abort the merge. */
1516 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1517 wtap_buf_ptr(wth), &write_err)) {
1518 got_write_error = TRUE;
1523 /* We're done merging the files; destroy the progress bar if it was created. */
1524 if (progbar != NULL)
1525 destroy_progress_dlg(progbar);
1527 merge_close_in_files(in_file_count, in_files);
1528 if (!got_read_error && !got_write_error) {
1529 if (!wtap_dump_close(pdh, &write_err))
1530 got_write_error = TRUE;
1532 wtap_dump_close(pdh, &close_err);
1534 if (got_read_error) {
1536 * Find the file on which we got the error, and report the error.
1538 for (i = 0; i < in_file_count; i++) {
1539 if (in_files[i].state == GOT_ERROR) {
1540 /* Put up a message box noting that a read failed somewhere along
1544 case WTAP_ERR_UNSUPPORTED_ENCAP:
1545 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1546 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1549 errmsg = errmsg_errno;
1552 case WTAP_ERR_CANT_READ:
1553 errmsg = "An attempt to read from the capture file %s failed for"
1554 " some unknown reason.";
1557 case WTAP_ERR_SHORT_READ:
1558 errmsg = "The capture file %s appears to have been cut short"
1559 " in the middle of a packet.";
1562 case WTAP_ERR_BAD_RECORD:
1563 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1564 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1567 errmsg = errmsg_errno;
1571 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1572 "An error occurred while reading the"
1573 " capture file %%s: %s.", wtap_strerror(read_err));
1574 errmsg = errmsg_errno;
1577 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1582 if (got_write_error) {
1583 /* Put up an alert box for the write error. */
1584 cf_write_failure_alert_box(out_filename, write_err);
1587 if (got_read_error || got_write_error || stop_flag) {
1588 /* Callers aren't expected to treat an error or an explicit abort
1589 differently - we put up error dialogs ourselves, so they don't
1597 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1599 const char *filter_new = dftext ? dftext : "";
1600 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1603 /* if new filter equals old one, do nothing unless told to do so */
1604 if (!force && strcmp(filter_new, filter_old) == 0) {
1610 if (dftext == NULL) {
1611 /* The new filter is an empty filter (i.e., display all packets).
1612 * so leave dfcode==NULL
1616 * We have a filter; make a copy of it (as we'll be saving it),
1617 * and try to compile it.
1619 dftext = g_strdup(dftext);
1620 if (!dfilter_compile(dftext, &dfcode)) {
1621 /* The attempt failed; report an error. */
1622 gchar *safe_dftext = simple_dialog_format_message(dftext);
1623 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1625 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1628 "The following display filter isn't a valid display filter:\n%s\n"
1629 "See the help for a description of the display filter syntax.",
1630 simple_dialog_primary_start(), safe_dfilter_error_msg,
1631 simple_dialog_primary_end(), safe_dftext);
1632 g_free(safe_dfilter_error_msg);
1633 g_free(safe_dftext);
1639 if (dfcode == NULL) {
1640 /* Yes - free the filter text, and set it to null. */
1646 /* We have a valid filter. Replace the current filter. */
1647 g_free(cf->dfilter);
1648 cf->dfilter = dftext;
1650 /* Now rescan the packet list, applying the new filter, but not
1651 throwing away information constructed on a previous pass. */
1652 if (dftext == NULL) {
1653 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1655 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1658 /* Cleanup and release all dfilter resources */
1659 dfilter_free(dfcode);
1665 cf_colorize_packets(capture_file *cf)
1667 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1671 cf_reftime_packets(capture_file *cf)
1674 #ifdef NEW_PACKET_LIST
1675 ref_time_packets(cf);
1677 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1682 cf_redissect_packets(capture_file *cf)
1684 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1687 /* Rescan the list of packets, reconstructing the CList.
1689 "action" describes why we're doing this; it's used in the progress
1692 "action_item" describes what we're doing; it's used in the progress
1695 "refilter" is TRUE if we need to re-evaluate the filter expression.
1697 "redissect" is TRUE if we need to make the dissectors reconstruct
1698 any state information they have (because a preference that affects
1699 some dissector has changed, meaning some dissector might construct
1700 its state differently from the way it was constructed the last time). */
1701 #ifdef NEW_PACKET_LIST
1703 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1704 gboolean refilter, gboolean redissect)
1706 /* Rescan packets new packet list */
1708 progdlg_t *progbar = NULL;
1713 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1714 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1715 gboolean selected_frame_seen;
1718 GTimeVal start_time;
1719 gchar status_str[100];
1720 int progbar_nextstep;
1721 int progbar_quantum;
1723 gboolean filtering_tap_listeners;
1725 gboolean add_to_packet_list = FALSE;
1728 /* Compile the current display filter.
1729 * We assume this will not fail since cf->dfilter is only set in
1730 * cf_filter IFF the filter was valid.
1732 compiled = dfilter_compile(cf->dfilter, &dfcode);
1733 g_assert(!cf->dfilter || (compiled && dfcode));
1735 /* Do we have any tap listeners with filters? */
1736 filtering_tap_listeners = have_filtering_tap_listeners();
1738 /* Get the union of the flags for all tap listeners. */
1739 tap_flags = union_of_tap_listener_flags();
1741 reset_tap_listeners();
1742 /* Which frame, if any, is the currently selected frame?
1743 XXX - should the selected frame or the focus frame be the "current"
1744 frame, that frame being the one from which "Find Frame" searches
1746 selected_frame = cf->current_frame;
1748 /* Mark frane num as not found */
1749 selected_frame_num = -1;
1751 /* Freeze the packet list while we redo it, so we don't get any
1752 screen updates while it happens. */
1753 new_packet_list_freeze();
1756 /* We need to re-initialize all the state information that protocols
1757 keep, because some preference that controls a dissector has changed,
1758 which might cause the state information to be constructed differently
1759 by that dissector. */
1761 /* We might receive new packets while redissecting, and we don't
1762 want to dissect those before their time. */
1763 cf->redissecting = TRUE;
1765 /* Cleanup all data structures used for dissection. */
1766 cleanup_dissection();
1767 /* Initialize all data structures used for dissection. */
1770 /* We need to redissect the packets so we have to discard our old
1771 * packet list store. */
1772 new_packet_list_clear();
1773 add_to_packet_list = TRUE;
1776 /* We don't yet know which will be the first and last frames displayed. */
1777 cf->first_displayed = NULL;
1778 cf->last_displayed = NULL;
1782 /* We currently don't display any packets */
1783 cf->displayed_count = 0;
1785 /* Iterate through the list of frames. Call a routine for each frame
1786 to check whether it should be displayed and, if so, add it to
1787 the display list. */
1788 nstime_set_unset(&first_ts);
1789 nstime_set_unset(&prev_dis_ts);
1790 nstime_set_unset(&prev_cap_ts);
1793 /* Update the progress bar when it gets to this value. */
1794 progbar_nextstep = 0;
1795 /* When we reach the value that triggers a progress bar update,
1796 bump that value by this amount. */
1797 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1798 /* Count of packets at which we've looked. */
1800 /* Progress so far. */
1804 g_get_current_time(&start_time);
1806 /* no previous row yet */
1808 prev_frame_num = -1;
1811 preceding_frame_num = -1;
1812 preceding_frame = NULL;
1813 following_frame_num = -1;
1814 following_frame = NULL;
1816 selected_frame_seen = FALSE;
1818 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1819 /* Create the progress bar if necessary.
1820 We check on every iteration of the loop, so that it takes no
1821 longer than the standard time to create it (otherwise, for a
1822 large file, we might take considerably longer than that standard
1823 time in order to get to the next progress bar step). */
1824 if (progbar == NULL)
1825 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1826 &stop_flag, &start_time,
1829 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1830 when we update it, we have to run the GTK+ main loop to get it
1831 to repaint what's pending, and doing so may involve an "ioctl()"
1832 to see if there's any pending input from an X server, and doing
1833 that for every packet can be costly, especially on a big file. */
1834 if (count >= progbar_nextstep) {
1835 /* let's not divide by zero. I should never be started
1836 * with count == 0, so let's assert that
1838 g_assert(cf->count > 0);
1839 progbar_val = (gfloat) count / cf->count;
1841 if (progbar != NULL) {
1842 g_snprintf(status_str, sizeof(status_str),
1843 "%4u of %u frames", count, cf->count);
1844 update_progress_dlg(progbar, progbar_val, status_str);
1847 progbar_nextstep += progbar_quantum;
1851 /* Well, the user decided to abort the filtering. Just stop.
1853 XXX - go back to the previous filter? Users probably just
1854 want not to wait for a filtering operation to finish;
1855 unless we cancel by having no filter, reverting to the
1856 previous filter will probably be even more expensive than
1857 continuing the filtering, as it involves going back to the
1858 beginning and filtering, and even with no filter we currently
1859 have to re-generate the entire clist, which is also expensive.
1861 I'm not sure what Network Monitor does, but it doesn't appear
1862 to give you an unfiltered display if you cancel. */
1869 /* Since all state for the frame was destroyed, mark the frame
1870 * as not visited, free the GSList referring to the state
1871 * data (the per-frame data itself was freed by
1872 * "init_dissection()"), and null out the GSList pointer. */
1873 fdata->flags.visited = 0;
1874 frame_data_cleanup(fdata);
1876 /* cleanup_dissection() calls se_free_all();
1877 * And after that fdata->col_text (which is allocated using se_alloc0())
1878 * no longer points to valid memory.
1880 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1881 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1884 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1885 cf->pd, fdata->cap_len, &err, &err_info)) {
1886 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1887 cf_read_error_message(err, err_info), cf->filename);
1891 /* If the previous frame is displayed, and we haven't yet seen the
1892 selected frame, remember that frame - it's the closest one we've
1893 yet seen before the selected frame. */
1894 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1895 preceding_frame_num = prev_frame_num;
1896 preceding_frame = prev_frame;
1898 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1899 tap_flags, &cf->pseudo_header, cf->pd,
1901 add_to_packet_list);
1903 /* If this frame is displayed, and this is the first frame we've
1904 seen displayed after the selected frame, remember this frame -
1905 it's the closest one we've yet seen at or after the selected
1907 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1908 following_frame_num = fdata->num;
1909 following_frame = fdata;
1911 if (fdata == selected_frame) {
1912 selected_frame_seen = TRUE;
1913 if (fdata->flags.passed_dfilter)
1914 selected_frame_num = fdata->num;
1917 /* Remember this frame - it'll be the previous frame
1918 on the next pass through the loop. */
1919 prev_frame_num = fdata->num;
1923 /* We are done redissecting the packet list. */
1924 cf->redissecting = FALSE;
1927 /* Clear out what remains of the visited flags and per-frame data
1930 XXX - that may cause various forms of bogosity when dissecting
1931 these frames, as they won't have been seen by this sequential
1932 pass, but the only alternative I see is to keep scanning them
1933 even though the user requested that the scan stop, and that
1934 would leave the user stuck with an Wireshark grinding on
1935 until it finishes. Should we just stick them with that? */
1936 for (; fdata != NULL; fdata = fdata->next) {
1937 fdata->flags.visited = 0;
1938 frame_data_cleanup(fdata);
1942 /* We're done filtering the packets; destroy the progress bar if it
1944 if (progbar != NULL)
1945 destroy_progress_dlg(progbar);
1947 /* Unfreeze the packet list. */
1948 if (!add_to_packet_list)
1949 new_packet_list_recreate_visible_rows();
1951 new_packet_list_thaw();
1953 if (selected_frame_num == -1) {
1954 /* The selected frame didn't pass the filter. */
1955 if (selected_frame == NULL) {
1956 /* That's because there *was* no selected frame. Make the first
1957 displayed frame the current frame. */
1958 selected_frame_num = 0;
1960 /* Find the nearest displayed frame to the selected frame (whether
1961 it's before or after that frame) and make that the current frame.
1962 If the next and previous displayed frames are equidistant from the
1963 selected frame, choose the next one. */
1964 g_assert(following_frame == NULL ||
1965 following_frame->num >= selected_frame->num);
1966 g_assert(preceding_frame == NULL ||
1967 preceding_frame->num <= selected_frame->num);
1968 if (following_frame == NULL) {
1969 /* No frame after the selected frame passed the filter, so we
1970 have to select the last displayed frame before the selected
1972 selected_frame_num = preceding_frame_num;
1973 selected_frame = preceding_frame;
1974 } else if (preceding_frame == NULL) {
1975 /* No frame before the selected frame passed the filter, so we
1976 have to select the first displayed frame after the selected
1978 selected_frame_num = following_frame_num;
1979 selected_frame = following_frame;
1981 /* Frames before and after the selected frame passed the filter, so
1982 we'll select the previous frame */
1983 selected_frame_num = preceding_frame_num;
1984 selected_frame = preceding_frame;
1989 if (selected_frame_num == -1) {
1990 /* There are no frames displayed at all. */
1991 cf_unselect_packet(cf);
1993 /* Either the frame that was selected passed the filter, or we've
1994 found the nearest displayed frame to that frame. Select it, make
1995 it the focus row, and make it visible. */
1996 /* Set to invalid to force update of packet list and packet details */
1997 cf->current_row = -1;
1998 if (selected_frame_num == 0) {
1999 new_packet_list_select_first_row();
2001 new_packet_list_find_row_from_data(selected_frame, TRUE);
2005 /* Cleanup and release all dfilter resources */
2006 dfilter_free(dfcode);
2012 rescan_packets(capture_file *cf, const char *action, const char *action_item,
2013 gboolean refilter, gboolean redissect)
2016 progdlg_t *progbar = NULL;
2021 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
2022 int selected_row, prev_row, preceding_row, following_row;
2023 gboolean selected_frame_seen;
2026 GTimeVal start_time;
2027 gchar status_str[100];
2028 int progbar_nextstep;
2029 int progbar_quantum;
2031 gboolean filtering_tap_listeners;
2033 gboolean add_to_packet_list = TRUE;
2036 /* Compile the current display filter.
2037 * We assume this will not fail since cf->dfilter is only set in
2038 * cf_filter IFF the filter was valid.
2040 compiled = dfilter_compile(cf->dfilter, &dfcode);
2041 g_assert(!cf->dfilter || (compiled && dfcode));
2043 /* Do we have any tap listeners with filters? */
2044 filtering_tap_listeners = have_filtering_tap_listeners();
2046 /* Get the union of the flags for all tap listeners. */
2047 tap_flags = union_of_tap_listener_flags();
2049 reset_tap_listeners();
2050 /* Which frame, if any, is the currently selected frame?
2051 XXX - should the selected frame or the focus frame be the "current"
2052 frame, that frame being the one from which "Find Frame" searches
2054 selected_frame = cf->current_frame;
2056 /* We don't yet know what row that frame will be on, if any, after we
2057 rebuild the clist, however. */
2060 /* Freeze the packet list while we redo it, so we don't get any
2061 screen updates while it happens. */
2062 packet_list_freeze();
2065 packet_list_clear();
2068 /* We need to re-initialize all the state information that protocols
2069 keep, because some preference that controls a dissector has changed,
2070 which might cause the state information to be constructed differently
2071 by that dissector. */
2073 /* We might receive new packets while redissecting, and we don't
2074 want to dissect those before their time. */
2075 cf->redissecting = TRUE;
2077 /* Cleanup all data structures used for dissection. */
2078 cleanup_dissection();
2079 /* Initialize all data structures used for dissection. */
2084 /* We don't yet know which will be the first and last frames displayed. */
2085 cf->first_displayed = NULL;
2086 cf->last_displayed = NULL;
2090 /* We currently don't display any packets */
2091 cf->displayed_count = 0;
2093 /* Iterate through the list of frames. Call a routine for each frame
2094 to check whether it should be displayed and, if so, add it to
2095 the display list. */
2096 nstime_set_unset(&first_ts);
2097 nstime_set_unset(&prev_dis_ts);
2098 nstime_set_unset(&prev_cap_ts);
2101 /* Update the progress bar when it gets to this value. */
2102 progbar_nextstep = 0;
2103 /* When we reach the value that triggers a progress bar update,
2104 bump that value by this amount. */
2105 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2106 /* Count of packets at which we've looked. */
2108 /* Progress so far. */
2112 g_get_current_time(&start_time);
2114 row = -1; /* no previous row yet */
2119 preceding_frame = NULL;
2121 following_frame = NULL;
2123 selected_frame_seen = FALSE;
2125 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2126 /* Create the progress bar if necessary.
2127 We check on every iteration of the loop, so that it takes no
2128 longer than the standard time to create it (otherwise, for a
2129 large file, we might take considerably longer than that standard
2130 time in order to get to the next progress bar step). */
2131 if (progbar == NULL)
2132 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2133 &stop_flag, &start_time,
2136 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2137 when we update it, we have to run the GTK+ main loop to get it
2138 to repaint what's pending, and doing so may involve an "ioctl()"
2139 to see if there's any pending input from an X server, and doing
2140 that for every packet can be costly, especially on a big file. */
2141 if (count >= progbar_nextstep) {
2142 /* let's not divide by zero. I should never be started
2143 * with count == 0, so let's assert that
2145 g_assert(cf->count > 0);
2146 progbar_val = (gfloat) count / cf->count;
2148 if (progbar != NULL) {
2149 g_snprintf(status_str, sizeof(status_str),
2150 "%4u of %u frames", count, cf->count);
2151 update_progress_dlg(progbar, progbar_val, status_str);
2154 progbar_nextstep += progbar_quantum;
2158 /* Well, the user decided to abort the filtering. Just stop.
2160 XXX - go back to the previous filter? Users probably just
2161 want not to wait for a filtering operation to finish;
2162 unless we cancel by having no filter, reverting to the
2163 previous filter will probably be even more expensive than
2164 continuing the filtering, as it involves going back to the
2165 beginning and filtering, and even with no filter we currently
2166 have to re-generate the entire clist, which is also expensive.
2168 I'm not sure what Network Monitor does, but it doesn't appear
2169 to give you an unfiltered display if you cancel. */
2176 /* Since all state for the frame was destroyed, mark the frame
2177 * as not visited, free the GSList referring to the state
2178 * data (the per-frame data itself was freed by
2179 * "init_dissection()"), and null out the GSList pointer.
2181 fdata->flags.visited = 0;
2182 frame_data_cleanup(fdata);
2185 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2186 cf->pd, fdata->cap_len, &err, &err_info)) {
2187 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2188 cf_read_error_message(err, err_info), cf->filename);
2192 /* If the previous frame is displayed, and we haven't yet seen the
2193 selected frame, remember that frame - it's the closest one we've
2194 yet seen before the selected frame. */
2195 if (prev_row != -1 && !selected_frame_seen) {
2196 preceding_row = prev_row;
2197 preceding_frame = prev_frame;
2199 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2200 tap_flags, &cf->pseudo_header, cf->pd,
2202 add_to_packet_list);
2204 /* If this frame is displayed, and this is the first frame we've
2205 seen displayed after the selected frame, remember this frame -
2206 it's the closest one we've yet seen at or after the selected
2208 if (row != -1 && selected_frame_seen && following_row == -1) {
2209 following_row = row;
2210 following_frame = fdata;
2212 if (fdata == selected_frame) {
2214 selected_frame_seen = TRUE;
2217 /* Remember this row/frame - it'll be the previous row/frame
2218 on the next pass through the loop. */
2223 /* We are done redissecting the packet list. */
2224 cf->redissecting = FALSE;
2227 /* Clear out what remains of the visited flags and per-frame data
2230 XXX - that may cause various forms of bogosity when dissecting
2231 these frames, as they won't have been seen by this sequential
2232 pass, but the only alternative I see is to keep scanning them
2233 even though the user requested that the scan stop, and that
2234 would leave the user stuck with an Wireshark grinding on
2235 until it finishes. Should we just stick them with that? */
2236 for (; fdata != NULL; fdata = fdata->next) {
2237 fdata->flags.visited = 0;
2238 frame_data_cleanup(fdata);
2242 /* We're done filtering the packets; destroy the progress bar if it
2244 if (progbar != NULL)
2245 destroy_progress_dlg(progbar);
2247 /* Unfreeze the packet list. */
2250 if (selected_row == -1) {
2251 /* The selected frame didn't pass the filter. */
2252 if (selected_frame == NULL) {
2253 /* That's because there *was* no selected frame. Make the first
2254 displayed frame the current frame. */
2257 /* Find the nearest displayed frame to the selected frame (whether
2258 it's before or after that frame) and make that the current frame.
2259 If the next and previous displayed frames are equidistant from the
2260 selected frame, choose the next one. */
2261 g_assert(following_frame == NULL ||
2262 following_frame->num >= selected_frame->num);
2263 g_assert(preceding_frame == NULL ||
2264 preceding_frame->num <= selected_frame->num);
2265 if (following_frame == NULL) {
2266 /* No frame after the selected frame passed the filter, so we
2267 have to select the last displayed frame before the selected
2269 selected_row = preceding_row;
2270 } else if (preceding_frame == NULL) {
2271 /* No frame before the selected frame passed the filter, so we
2272 have to select the first displayed frame after the selected
2274 selected_row = following_row;
2276 /* Frames before and after the selected frame passed the filter, so
2277 we'll select the previous frame */
2278 selected_row = preceding_row;
2283 if (selected_row == -1) {
2284 /* There are no frames displayed at all. */
2285 cf_unselect_packet(cf);
2287 /* Either the frame that was selected passed the filter, or we've
2288 found the nearest displayed frame to that frame. Select it, make
2289 it the focus row, and make it visible. */
2290 if (selected_row == 0) {
2291 /* Set to invalid to force update of packet list and packet details */
2292 cf->current_row = -1;
2294 packet_list_set_selected_row(selected_row);
2297 /* Cleanup and release all dfilter resources */
2298 dfilter_free(dfcode);
2300 #endif /* NEW_PACKET_LIST */
2303 * Scan trough all frame data and recalculate the ref time
2304 * without rereading the file.
2305 * XXX - do we need a progres bar or is this fast enough?
2307 #ifdef NEW_PACKET_LIST
2309 ref_time_packets(capture_file *cf)
2313 nstime_set_unset(&first_ts);
2314 nstime_set_unset(&prev_dis_ts);
2315 nstime_set_unset(&prev_cap_ts);
2318 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2319 /* just add some value here until we know if it is being displayed or not */
2320 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2322 /* If we don't have the time stamp of the first packet in the
2323 capture, it's because this is the first packet. Save the time
2324 stamp of this packet as the time stamp of the first packet. */
2325 if (nstime_is_unset(&first_ts)) {
2326 first_ts = fdata->abs_ts;
2328 /* if this frames is marked as a reference time frame, reset
2329 firstsec and firstusec to this frame */
2330 if(fdata->flags.ref_time){
2331 first_ts = fdata->abs_ts;
2334 /* If we don't have the time stamp of the previous displayed packet,
2335 it's because this is the first displayed packet. Save the time
2336 stamp of this packet as the time stamp of the previous displayed
2338 if (nstime_is_unset(&prev_dis_ts)) {
2339 prev_dis_ts = fdata->abs_ts;
2342 /* Get the time elapsed between the first packet and this packet. */
2343 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2345 /* If it's greater than the current elapsed time, set the elapsed time
2346 to it (we check for "greater than" so as not to be confused by
2347 time moving backwards). */
2348 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2349 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2350 cf->elapsed_time = fdata->rel_ts;
2353 /* Get the time elapsed between the previous displayed packet and
2355 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2357 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2358 /* This frame either passed the display filter list or is marked as
2359 a time reference frame. All time reference frames are displayed
2360 even if they dont pass the display filter */
2361 if(fdata->flags.ref_time){
2362 /* if this was a TIME REF frame we should reset the cul bytes field */
2363 cum_bytes = fdata->pkt_len;
2364 fdata->cum_bytes = cum_bytes;
2366 /* increase cum_bytes with this packets length */
2367 cum_bytes += fdata->pkt_len;
2381 process_specified_packets(capture_file *cf, packet_range_t *range,
2382 const char *string1, const char *string2, gboolean terminate_is_stop,
2383 gboolean (*callback)(capture_file *, frame_data *,
2384 union wtap_pseudo_header *, const guint8 *, void *),
2385 void *callback_args)
2390 union wtap_pseudo_header pseudo_header;
2391 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2392 psp_return_t ret = PSP_FINISHED;
2394 progdlg_t *progbar = NULL;
2397 gboolean progbar_stop_flag;
2398 GTimeVal progbar_start_time;
2399 gchar progbar_status_str[100];
2400 int progbar_nextstep;
2401 int progbar_quantum;
2402 range_process_e process_this;
2404 /* Update the progress bar when it gets to this value. */
2405 progbar_nextstep = 0;
2406 /* When we reach the value that triggers a progress bar update,
2407 bump that value by this amount. */
2408 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2409 /* Count of packets at which we've looked. */
2411 /* Progress so far. */
2414 progbar_stop_flag = FALSE;
2415 g_get_current_time(&progbar_start_time);
2417 packet_range_process_init(range);
2419 /* Iterate through the list of packets, printing the packets that
2420 were selected by the current display filter. */
2421 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2422 /* Create the progress bar if necessary.
2423 We check on every iteration of the loop, so that it takes no
2424 longer than the standard time to create it (otherwise, for a
2425 large file, we might take considerably longer than that standard
2426 time in order to get to the next progress bar step). */
2427 if (progbar == NULL)
2428 progbar = delayed_create_progress_dlg(string1, string2,
2431 &progbar_start_time,
2434 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2435 when we update it, we have to run the GTK+ main loop to get it
2436 to repaint what's pending, and doing so may involve an "ioctl()"
2437 to see if there's any pending input from an X server, and doing
2438 that for every packet can be costly, especially on a big file. */
2439 if (progbar_count >= progbar_nextstep) {
2440 /* let's not divide by zero. I should never be started
2441 * with count == 0, so let's assert that
2443 g_assert(cf->count > 0);
2444 progbar_val = (gfloat) progbar_count / cf->count;
2446 if (progbar != NULL) {
2447 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2448 "%4u of %u packets", progbar_count, cf->count);
2449 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2452 progbar_nextstep += progbar_quantum;
2455 if (progbar_stop_flag) {
2456 /* Well, the user decided to abort the operation. Just stop,
2457 and arrange to return PSP_STOPPED to our caller, so they know
2458 it was stopped explicitly. */
2465 /* do we have to process this packet? */
2466 process_this = packet_range_process_packet(range, fdata);
2467 if (process_this == range_process_next) {
2468 /* this packet uninteresting, continue with next one */
2470 } else if (process_this == range_processing_finished) {
2471 /* all interesting packets processed, stop the loop */
2475 /* Get the packet */
2476 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2477 pd, fdata->cap_len, &err, &err_info)) {
2478 /* Attempt to get the packet failed. */
2479 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2480 cf_read_error_message(err, err_info), cf->filename);
2484 /* Process the packet */
2485 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2486 /* Callback failed. We assume it reported the error appropriately. */
2492 /* We're done printing the packets; destroy the progress bar if
2494 if (progbar != NULL)
2495 destroy_progress_dlg(progbar);
2501 gboolean construct_protocol_tree;
2503 } retap_callback_args_t;
2506 retap_packet(capture_file *cf _U_, frame_data *fdata,
2507 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2510 retap_callback_args_t *args = argsp;
2513 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2514 tap_queue_init(&edt);
2515 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2516 tap_push_tapped_queue(&edt);
2517 epan_dissect_cleanup(&edt);
2523 cf_retap_packets(capture_file *cf)
2525 packet_range_t range;
2526 retap_callback_args_t callback_args;
2527 gboolean filtering_tap_listeners;
2530 /* Do we have any tap listeners with filters? */
2531 filtering_tap_listeners = have_filtering_tap_listeners();
2533 tap_flags = union_of_tap_listener_flags();
2535 /* If any tap listeners have filters, or require the protocol tree,
2536 construct the protocol tree. */
2537 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2538 (tap_flags & TL_REQUIRES_PROTO_TREE);
2540 /* If any tap listeners require the columns, construct them. */
2541 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2543 /* Reset the tap listeners. */
2544 reset_tap_listeners();
2546 /* Iterate through the list of packets, dissecting all packets and
2547 re-running the taps. */
2548 packet_range_init(&range);
2549 packet_range_process_init(&range);
2550 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2551 "all packets", TRUE, retap_packet,
2554 /* Completed successfully. */
2558 /* Well, the user decided to abort the refiltering.
2559 Return CF_READ_ABORTED so our caller knows they did that. */
2560 return CF_READ_ABORTED;
2563 /* Error while retapping. */
2564 return CF_READ_ERROR;
2567 g_assert_not_reached();
2572 print_args_t *print_args;
2573 gboolean print_header_line;
2574 char *header_line_buf;
2575 int header_line_buf_len;
2576 gboolean print_formfeed;
2577 gboolean print_separator;
2581 } print_callback_args_t;
2584 print_packet(capture_file *cf, frame_data *fdata,
2585 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2588 print_callback_args_t *args = argsp;
2595 gboolean proto_tree_needed;
2596 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2597 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2599 /* Create the protocol tree, and make it visible, if we're printing
2600 the dissection or the hex data.
2601 XXX - do we need it if we're just printing the hex data? */
2603 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2604 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2606 /* Fill in the column information if we're printing the summary
2608 if (args->print_args->print_summary) {
2609 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2610 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2612 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2614 if (args->print_formfeed) {
2615 if (!new_page(args->print_args->stream))
2618 if (args->print_separator) {
2619 if (!print_line(args->print_args->stream, 0, ""))
2625 * We generate bookmarks, if the output format supports them.
2626 * The name is "__frameN__".
2628 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2630 if (args->print_args->print_summary) {
2631 if (args->print_header_line) {
2632 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2634 args->print_header_line = FALSE; /* we might not need to print any more */
2636 cp = &args->line_buf[0];
2638 for (i = 0; i < cf->cinfo.num_cols; i++) {
2639 /* Find the length of the string for this column. */
2640 column_len = (int) strlen(cf->cinfo.col_data[i]);
2641 if (args->col_widths[i] > column_len)
2642 column_len = args->col_widths[i];
2644 /* Make sure there's room in the line buffer for the column; if not,
2645 double its length. */
2646 line_len += column_len + 1; /* "+1" for space */
2647 if (line_len > args->line_buf_len) {
2648 cp_off = (int) (cp - args->line_buf);
2649 args->line_buf_len = 2 * line_len;
2650 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2651 cp = args->line_buf + cp_off;
2654 /* Right-justify the packet number column. */
2655 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2656 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2658 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2660 if (i != cf->cinfo.num_cols - 1)
2666 * Generate a bookmark, using the summary line as the title.
2668 if (!print_bookmark(args->print_args->stream, bookmark_name,
2672 if (!print_line(args->print_args->stream, 0, args->line_buf))
2676 * Generate a bookmark, using "Frame N" as the title, as we're not
2677 * printing the summary line.
2679 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2680 if (!print_bookmark(args->print_args->stream, bookmark_name,
2683 } /* if (print_summary) */
2685 if (args->print_args->print_dissections != print_dissections_none) {
2686 if (args->print_args->print_summary) {
2687 /* Separate the summary line from the tree with a blank line. */
2688 if (!print_line(args->print_args->stream, 0, ""))
2692 /* Print the information in that tree. */
2693 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2696 /* Print a blank line if we print anything after this (aka more than one packet). */
2697 args->print_separator = TRUE;
2699 /* Print a header line if we print any more packet summaries */
2700 args->print_header_line = TRUE;
2703 if (args->print_args->print_hex) {
2704 /* Print the full packet data as hex. */
2705 if (!print_hex_data(args->print_args->stream, &edt))
2708 /* Print a blank line if we print anything after this (aka more than one packet). */
2709 args->print_separator = TRUE;
2711 /* Print a header line if we print any more packet summaries */
2712 args->print_header_line = TRUE;
2713 } /* if (args->print_args->print_dissections != print_dissections_none) */
2715 epan_dissect_cleanup(&edt);
2717 /* do we want to have a formfeed between each packet from now on? */
2718 if(args->print_args->print_formfeed) {
2719 args->print_formfeed = TRUE;
2725 epan_dissect_cleanup(&edt);
2730 cf_print_packets(capture_file *cf, print_args_t *print_args)
2733 print_callback_args_t callback_args;
2741 callback_args.print_args = print_args;
2742 callback_args.print_header_line = TRUE;
2743 callback_args.header_line_buf = NULL;
2744 callback_args.header_line_buf_len = 256;
2745 callback_args.print_formfeed = FALSE;
2746 callback_args.print_separator = FALSE;
2747 callback_args.line_buf = NULL;
2748 callback_args.line_buf_len = 256;
2749 callback_args.col_widths = NULL;
2751 if (!print_preamble(print_args->stream, cf->filename)) {
2752 destroy_print_stream(print_args->stream);
2753 return CF_PRINT_WRITE_ERROR;
2756 if (print_args->print_summary) {
2757 /* We're printing packet summaries. Allocate the header line buffer
2758 and get the column widths. */
2759 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2761 /* Find the widths for each of the columns - maximum of the
2762 width of the title and the width of the data - and construct
2763 a buffer with a line containing the column titles. */
2764 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2765 cp = &callback_args.header_line_buf[0];
2767 for (i = 0; i < cf->cinfo.num_cols; i++) {
2768 /* Don't pad the last column. */
2769 if (i == cf->cinfo.num_cols - 1)
2770 callback_args.col_widths[i] = 0;
2772 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2773 data_width = get_column_char_width(get_column_format(i));
2774 if (data_width > callback_args.col_widths[i])
2775 callback_args.col_widths[i] = data_width;
2778 /* Find the length of the string for this column. */
2779 column_len = (int) strlen(cf->cinfo.col_title[i]);
2780 if (callback_args.col_widths[i] > column_len)
2781 column_len = callback_args.col_widths[i];
2783 /* Make sure there's room in the line buffer for the column; if not,
2784 double its length. */
2785 line_len += column_len + 1; /* "+1" for space */
2786 if (line_len > callback_args.header_line_buf_len) {
2787 cp_off = (int) (cp - callback_args.header_line_buf);
2788 callback_args.header_line_buf_len = 2 * line_len;
2789 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2790 callback_args.header_line_buf_len + 1);
2791 cp = callback_args.header_line_buf + cp_off;
2794 /* Right-justify the packet number column. */
2795 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2796 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2798 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2800 if (i != cf->cinfo.num_cols - 1)
2805 /* Now start out the main line buffer with the same length as the
2806 header line buffer. */
2807 callback_args.line_buf_len = callback_args.header_line_buf_len;
2808 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2809 } /* if (print_summary) */
2811 /* Iterate through the list of packets, printing the packets we were
2813 ret = process_specified_packets(cf, &print_args->range, "Printing",
2814 "selected packets", TRUE, print_packet,
2817 g_free(callback_args.header_line_buf);
2818 g_free(callback_args.line_buf);
2819 g_free(callback_args.col_widths);
2824 /* Completed successfully. */
2828 /* Well, the user decided to abort the printing.
2830 XXX - note that what got generated before they did that
2831 will get printed if we're piping to a print program; we'd
2832 have to write to a file and then hand that to the print
2833 program to make it actually not print anything. */
2837 /* Error while printing.
2839 XXX - note that what got generated before they did that
2840 will get printed if we're piping to a print program; we'd
2841 have to write to a file and then hand that to the print
2842 program to make it actually not print anything. */
2843 destroy_print_stream(print_args->stream);
2844 return CF_PRINT_WRITE_ERROR;
2847 if (!print_finale(print_args->stream)) {
2848 destroy_print_stream(print_args->stream);
2849 return CF_PRINT_WRITE_ERROR;
2852 if (!destroy_print_stream(print_args->stream))
2853 return CF_PRINT_WRITE_ERROR;
2859 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2860 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2866 /* Create the protocol tree, but don't fill in the column information. */
2867 epan_dissect_init(&edt, TRUE, TRUE);
2868 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2870 /* Write out the information in that tree. */
2871 proto_tree_write_pdml(&edt, fh);
2873 epan_dissect_cleanup(&edt);
2879 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2884 fh = ws_fopen(print_args->file, "w");
2886 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2888 write_pdml_preamble(fh);
2891 return CF_PRINT_WRITE_ERROR;
2894 /* Iterate through the list of packets, printing the packets we were
2896 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2897 "selected packets", TRUE,
2898 write_pdml_packet, fh);
2903 /* Completed successfully. */
2907 /* Well, the user decided to abort the printing. */
2911 /* Error while printing. */
2913 return CF_PRINT_WRITE_ERROR;
2916 write_pdml_finale(fh);
2919 return CF_PRINT_WRITE_ERROR;
2922 /* XXX - check for an error */
2929 write_psml_packet(capture_file *cf, frame_data *fdata,
2930 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2935 gboolean proto_tree_needed;
2937 /* Fill in the column information, only create the protocol tree
2938 if having custom columns. */
2939 proto_tree_needed = have_custom_cols(&cf->cinfo);
2940 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2941 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2942 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2944 /* Write out the information in that tree. */
2945 proto_tree_write_psml(&edt, fh);
2947 epan_dissect_cleanup(&edt);
2953 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2958 fh = ws_fopen(print_args->file, "w");
2960 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2962 write_psml_preamble(fh);
2965 return CF_PRINT_WRITE_ERROR;
2968 /* Iterate through the list of packets, printing the packets we were
2970 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2971 "selected packets", TRUE,
2972 write_psml_packet, fh);
2977 /* Completed successfully. */
2981 /* Well, the user decided to abort the printing. */
2985 /* Error while printing. */
2987 return CF_PRINT_WRITE_ERROR;
2990 write_psml_finale(fh);
2993 return CF_PRINT_WRITE_ERROR;
2996 /* XXX - check for an error */
3003 write_csv_packet(capture_file *cf, frame_data *fdata,
3004 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3009 gboolean proto_tree_needed;
3011 /* Fill in the column information, only create the protocol tree
3012 if having custom columns. */
3013 proto_tree_needed = have_custom_cols(&cf->cinfo);
3014 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3015 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3016 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3018 /* Write out the information in that tree. */
3019 proto_tree_write_csv(&edt, fh);
3021 epan_dissect_cleanup(&edt);
3027 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3032 fh = ws_fopen(print_args->file, "w");
3034 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3036 write_csv_preamble(fh);
3039 return CF_PRINT_WRITE_ERROR;
3042 /* Iterate through the list of packets, printing the packets we were
3044 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3045 "selected packets", TRUE,
3046 write_csv_packet, fh);
3051 /* Completed successfully. */
3055 /* Well, the user decided to abort the printing. */
3059 /* Error while printing. */
3061 return CF_PRINT_WRITE_ERROR;
3064 write_csv_finale(fh);
3067 return CF_PRINT_WRITE_ERROR;
3070 /* XXX - check for an error */
3077 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3078 union wtap_pseudo_header *pseudo_header _U_,
3079 const guint8 *pd, void *argsp)
3083 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3088 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3093 fh = ws_fopen(print_args->file, "w");
3096 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3098 write_carrays_preamble(fh);
3102 return CF_PRINT_WRITE_ERROR;
3105 /* Iterate through the list of packets, printing the packets we were
3107 ret = process_specified_packets(cf, &print_args->range,
3109 "selected packets", TRUE,
3110 write_carrays_packet, fh);
3113 /* Completed successfully. */
3116 /* Well, the user decided to abort the printing. */
3119 /* Error while printing. */
3121 return CF_PRINT_WRITE_ERROR;
3124 write_carrays_finale(fh);
3128 return CF_PRINT_WRITE_ERROR;
3135 #ifndef NEW_PACKET_LIST /* This function is not needed with the new packet list */
3137 /* Scan through the packet list and change all columns that use the
3138 "command-line-specified" time stamp format to use the current
3139 value of that format. */
3141 cf_change_time_formats(capture_file *cf)
3145 progdlg_t *progbar = NULL;
3150 GTimeVal start_time;
3151 gchar status_str[100];
3152 int progbar_nextstep;
3153 int progbar_quantum;
3154 gboolean sorted_by_frame_column;
3156 /* Adjust timestamp precision if auto is selected */
3157 cf_timestamp_auto_precision(cf);
3159 /* Are there any columns with time stamps in the "command-line-specified"
3162 XXX - we have to force the "column is writable" flag on, as it
3163 might be off from the last frame that was dissected. */
3164 col_set_writable(&cf->cinfo, TRUE);
3165 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3166 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3167 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3168 !check_col(&cf->cinfo, COL_REL_TIME) &&
3169 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3170 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3171 /* No, there aren't any columns in that format, so we have no work
3176 /* Freeze the packet list while we redo it, so we don't get any
3177 screen updates while it happens. */
3178 packet_list_freeze();
3180 /* Update the progress bar when it gets to this value. */
3181 progbar_nextstep = 0;
3182 /* When we reach the value that triggers a progress bar update,
3183 bump that value by this amount. */
3184 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3185 /* Count of packets at which we've looked. */
3187 /* Progress so far. */
3190 /* If the rows are currently sorted by the frame column then we know
3191 * the row number of each packet: it's the row number of the previously
3192 * displayed packet + 1.
3194 * Otherwise, if the display is sorted by a different column then we have
3195 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3196 * of changing the time display format O(N**2)).
3198 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3199 * the row number and walks that many elements down the clist to find
3200 * the appropriate element.)
3202 sorted_by_frame_column = FALSE;
3203 for (i = 0; i < cf->cinfo.num_cols; i++) {
3204 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3206 sorted_by_frame_column = (i == packet_list_get_sort_column());
3212 g_get_current_time(&start_time);
3214 /* Iterate through the list of packets, checking whether the packet
3215 is in a row of the summary list and, if so, whether there are
3216 any columns that show the time in the "command-line-specified"
3217 format and, if so, update that row. */
3218 for (fdata = cf->plist_start, row = -1; fdata != NULL; fdata = fdata->next) {
3219 /* Create the progress bar if necessary.
3220 We check on every iteration of the loop, so that it takes no
3221 longer than the standard time to create it (otherwise, for a
3222 large file, we might take considerably longer than that standard
3223 time in order to get to the next progress bar step). */
3224 if (progbar == NULL)
3225 progbar = delayed_create_progress_dlg("Changing", "time display",
3226 TRUE, &stop_flag, &start_time, progbar_val);
3228 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3229 when we update it, we have to run the GTK+ main loop to get it
3230 to repaint what's pending, and doing so may involve an "ioctl()"
3231 to see if there's any pending input from an X server, and doing
3232 that for every packet can be costly, especially on a big file. */
3233 if (count >= progbar_nextstep) {
3234 /* let's not divide by zero. I should never be started
3235 * with count == 0, so let's assert that
3237 g_assert(cf->count > 0);
3239 progbar_val = (gfloat) count / cf->count;
3241 if (progbar != NULL) {
3242 g_snprintf(status_str, sizeof(status_str),
3243 "%4u of %u packets", count, cf->count);
3244 update_progress_dlg(progbar, progbar_val, status_str);
3247 progbar_nextstep += progbar_quantum;
3251 /* Well, the user decided to abort the redisplay. Just stop.
3253 XXX - this leaves the time field in the old format in
3254 frames we haven't yet processed. So it goes; should we
3255 simply not offer them the option of stopping? */
3261 /* Find what row this packet is in. */
3262 if (!sorted_by_frame_column) {
3263 /* This function is O(N), so we try to avoid using it... */
3264 row = packet_list_find_row_from_data(fdata);
3266 /* ...which we do by maintaining a count of packets that are
3267 being displayed (i.e., that have passed the display filter),
3268 and using the current value of that count as the row number
3269 (which is why we can only do it when the display is sorted
3270 by the frame number). */
3271 if (fdata->flags.passed_dfilter)
3278 /* This packet is in the summary list, on row "row". */
3280 for (i = 0; i < cf->cinfo.num_cols; i++) {
3281 if (col_has_time_fmt(&cf->cinfo, i)) {
3282 /* This is one of the columns that shows the time in
3283 "command-line-specified" format; update it. */
3284 cf->cinfo.col_buf[i][0] = '\0';
3285 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3286 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3292 /* We're done redisplaying the packets; destroy the progress bar if it
3294 if (progbar != NULL)
3295 destroy_progress_dlg(progbar);
3297 /* Set the column widths of those columns that show the time in
3298 "command-line-specified" format. */
3299 for (i = 0; i < cf->cinfo.num_cols; i++) {
3300 if (col_has_time_fmt(&cf->cinfo, i)) {
3301 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3305 /* Unfreeze the packet list. */
3308 #endif /* NEW_PACKET_LIST */
3315 gboolean frame_matched;
3319 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3323 mdata.string = string;
3324 mdata.string_len = strlen(string);
3325 return find_packet(cf, match_protocol_tree, &mdata);
3329 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3331 match_data *mdata = criterion;
3334 /* Construct the protocol tree, including the displayed text */
3335 epan_dissect_init(&edt, TRUE, TRUE);
3336 /* We don't need the column information */
3337 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3339 /* Iterate through all the nodes, seeing if they have text that matches. */
3341 mdata->frame_matched = FALSE;
3342 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3343 epan_dissect_cleanup(&edt);
3344 return mdata->frame_matched;
3348 match_subtree_text(proto_node *node, gpointer data)
3350 match_data *mdata = (match_data*) data;
3351 const gchar *string = mdata->string;
3352 size_t string_len = mdata->string_len;
3353 capture_file *cf = mdata->cf;
3354 field_info *fi = PNODE_FINFO(node);
3355 gchar label_str[ITEM_LABEL_LENGTH];
3362 g_assert(fi && "dissection with an invisible proto tree?");
3364 if (mdata->frame_matched) {
3365 /* We already had a match; don't bother doing any more work. */
3369 /* Don't match invisible entries. */
3370 if (PROTO_ITEM_IS_HIDDEN(node))
3373 /* was a free format label produced? */
3375 label_ptr = fi->rep->representation;
3377 /* no, make a generic label */
3378 label_ptr = label_str;
3379 proto_item_fill_label(fi, label_str);
3382 /* Does that label match? */
3383 label_len = strlen(label_ptr);
3384 for (i = 0; i < label_len; i++) {
3385 c_char = label_ptr[i];
3387 c_char = toupper(c_char);
3388 if (c_char == string[c_match]) {
3390 if (c_match == string_len) {
3391 /* No need to look further; we have a match */
3392 mdata->frame_matched = TRUE;
3399 /* Recurse into the subtree, if it exists */
3400 if (node->first_child != NULL)
3401 proto_tree_children_foreach(node, match_subtree_text, mdata);
3405 cf_find_packet_summary_line(capture_file *cf, const char *string)
3409 mdata.string = string;
3410 mdata.string_len = strlen(string);
3411 return find_packet(cf, match_summary_line, &mdata);
3415 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3417 match_data *mdata = criterion;
3418 const gchar *string = mdata->string;
3419 size_t string_len = mdata->string_len;
3421 const char *info_column;
3422 size_t info_column_len;
3423 gboolean frame_matched = FALSE;
3429 /* Don't bother constructing the protocol tree */
3430 epan_dissect_init(&edt, FALSE, FALSE);
3431 /* Get the column information */
3432 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3434 /* Find the Info column */
3435 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3436 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3437 /* Found it. See if we match. */
3438 info_column = edt.pi.cinfo->col_data[colx];
3439 info_column_len = strlen(info_column);
3440 for (i = 0; i < info_column_len; i++) {
3441 c_char = info_column[i];
3443 c_char = toupper(c_char);
3444 if (c_char == string[c_match]) {
3446 if (c_match == string_len) {
3447 frame_matched = TRUE;
3456 epan_dissect_cleanup(&edt);
3457 return frame_matched;
3463 } cbs_t; /* "Counted byte string" */
3466 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3471 info.data_len = string_size;
3473 /* String or hex search? */
3475 /* String search - what type of string? */
3476 switch (cf->scs_type) {
3478 case SCS_ASCII_AND_UNICODE:
3479 return find_packet(cf, match_ascii_and_unicode, &info);
3482 return find_packet(cf, match_ascii, &info);
3485 return find_packet(cf, match_unicode, &info);
3488 g_assert_not_reached();
3492 return find_packet(cf, match_binary, &info);
3496 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3498 cbs_t *info = criterion;
3499 const guint8 *ascii_text = info->data;
3500 size_t textlen = info->data_len;
3501 gboolean frame_matched;
3507 frame_matched = FALSE;
3508 buf_len = fdata->pkt_len;
3509 for (i = 0; i < buf_len; i++) {
3512 c_char = toupper(c_char);
3514 if (c_char == ascii_text[c_match]) {
3516 if (c_match == textlen) {
3517 frame_matched = TRUE;
3518 cf->search_pos = i; /* Save the position of the last character
3519 for highlighting the field. */
3526 return frame_matched;
3530 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3532 cbs_t *info = criterion;
3533 const guint8 *ascii_text = info->data;
3534 size_t textlen = info->data_len;
3535 gboolean frame_matched;
3541 frame_matched = FALSE;
3542 buf_len = fdata->pkt_len;
3543 for (i = 0; i < buf_len; i++) {
3546 c_char = toupper(c_char);
3547 if (c_char == ascii_text[c_match]) {
3549 if (c_match == textlen) {
3550 frame_matched = TRUE;
3551 cf->search_pos = i; /* Save the position of the last character
3552 for highlighting the field. */
3558 return frame_matched;
3562 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3564 cbs_t *info = criterion;
3565 const guint8 *ascii_text = info->data;
3566 size_t textlen = info->data_len;
3567 gboolean frame_matched;
3573 frame_matched = FALSE;
3574 buf_len = fdata->pkt_len;
3575 for (i = 0; i < buf_len; i++) {
3578 c_char = toupper(c_char);
3579 if (c_char == ascii_text[c_match]) {
3582 if (c_match == textlen) {
3583 frame_matched = TRUE;
3584 cf->search_pos = i; /* Save the position of the last character
3585 for highlighting the field. */
3591 return frame_matched;
3595 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3597 cbs_t *info = criterion;
3598 const guint8 *binary_data = info->data;
3599 size_t datalen = info->data_len;
3600 gboolean frame_matched;
3605 frame_matched = FALSE;
3606 buf_len = fdata->pkt_len;
3607 for (i = 0; i < buf_len; i++) {
3608 if (cf->pd[i] == binary_data[c_match]) {
3610 if (c_match == datalen) {
3611 frame_matched = TRUE;
3612 cf->search_pos = i; /* Save the position of the last character
3613 for highlighting the field. */
3619 return frame_matched;
3623 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3625 return find_packet(cf, match_dfilter, sfcode);
3629 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3631 dfilter_t *sfcode = criterion;
3633 gboolean frame_matched;
3635 epan_dissect_init(&edt, TRUE, FALSE);
3636 epan_dissect_prime_dfilter(&edt, sfcode);
3637 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3638 frame_matched = dfilter_apply_edt(sfcode, &edt);
3639 epan_dissect_cleanup(&edt);
3640 return frame_matched;
3644 find_packet(capture_file *cf,
3645 gboolean (*match_function)(capture_file *, frame_data *, void *),
3648 frame_data *start_fd;
3650 frame_data *new_fd = NULL;
3651 progdlg_t *progbar = NULL;
3658 GTimeVal start_time;
3659 gchar status_str[100];
3660 int progbar_nextstep;
3661 int progbar_quantum;
3664 start_fd = cf->current_frame;
3665 if (start_fd != NULL) {
3666 /* Iterate through the list of packets, starting at the packet we've
3667 picked, calling a routine to run the filter on the packet, see if
3668 it matches, and stop if so. */
3672 /* Update the progress bar when it gets to this value. */
3673 progbar_nextstep = 0;
3674 /* When we reach the value that triggers a progress bar update,
3675 bump that value by this amount. */
3676 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3677 /* Progress so far. */
3681 g_get_current_time(&start_time);
3684 title = cf->sfilter?cf->sfilter:"";
3686 /* Create the progress bar if necessary.
3687 We check on every iteration of the loop, so that it takes no
3688 longer than the standard time to create it (otherwise, for a
3689 large file, we might take considerably longer than that standard
3690 time in order to get to the next progress bar step). */
3691 if (progbar == NULL)
3692 progbar = delayed_create_progress_dlg("Searching", title,
3693 FALSE, &stop_flag, &start_time, progbar_val);
3695 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3696 when we update it, we have to run the GTK+ main loop to get it
3697 to repaint what's pending, and doing so may involve an "ioctl()"
3698 to see if there's any pending input from an X server, and doing
3699 that for every packet can be costly, especially on a big file. */
3700 if (count >= progbar_nextstep) {
3701 /* let's not divide by zero. I should never be started
3702 * with count == 0, so let's assert that
3704 g_assert(cf->count > 0);
3706 progbar_val = (gfloat) count / cf->count;
3708 if (progbar != NULL) {
3709 g_snprintf(status_str, sizeof(status_str),
3710 "%4u of %u packets", count, cf->count);
3711 update_progress_dlg(progbar, progbar_val, status_str);
3714 progbar_nextstep += progbar_quantum;
3718 /* Well, the user decided to abort the search. Go back to the
3719 frame where we started. */
3724 /* Go past the current frame. */
3725 if (cf->sbackward) {
3726 /* Go on to the previous frame. */
3727 fdata = fdata->prev;
3728 if (fdata == NULL) {
3730 * XXX - other apps have a bit more of a detailed message
3731 * for this, and instead of offering "OK" and "Cancel",
3732 * they offer things such as "Continue" and "Cancel";
3733 * we need an API for popping up alert boxes with
3734 * {Verb} and "Cancel".
3737 if (prefs.gui_find_wrap)
3739 simple_status("Search reached the beginning. Continuing at end.");
3740 fdata = cf->plist_end; /* wrap around */
3744 simple_status("Search reached the beginning.");
3745 fdata = start_fd; /* stay on previous packet */
3749 /* Go on to the next frame. */
3750 fdata = fdata->next;
3751 if (fdata == NULL) {
3752 if (prefs.gui_find_wrap)
3754 simple_status("Search reached the end. Continuing at beginning.");
3755 fdata = cf->plist_start; /* wrap around */
3759 simple_status("Search reached the end.");
3760 fdata = start_fd; /* stay on previous packet */
3767 /* Is this packet in the display? */
3768 if (fdata->flags.passed_dfilter) {
3769 /* Yes. Load its data. */
3770 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3771 cf->pd, fdata->cap_len, &err, &err_info)) {
3772 /* Read error. Report the error, and go back to the frame
3773 where we started. */
3774 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3775 cf_read_error_message(err, err_info), cf->filename);
3780 /* Does it match the search criterion? */
3781 if ((*match_function)(cf, fdata, criterion)) {
3783 break; /* found it! */
3787 if (fdata == start_fd) {
3788 /* We're back to the frame we were on originally, and that frame
3789 doesn't match the search filter. The search failed. */
3794 /* We're done scanning the packets; destroy the progress bar if it
3796 if (progbar != NULL)
3797 destroy_progress_dlg(progbar);
3800 if (new_fd != NULL) {
3801 #ifdef NEW_PACKET_LIST
3802 /* Find and select */
3803 row = new_packet_list_find_row_from_data(fdata, TRUE);
3805 /* We found a frame. Find what row it's in. */
3806 row = packet_list_find_row_from_data(new_fd);
3807 #endif /* NEW_PACKET_LIST */
3809 /* We didn't find a row even though we know that a frame
3810 * exists that satifies the search criteria. This means that the
3811 * frame isn't being displayed currently so we can't select it. */
3812 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3813 "%sEnd of capture exceeded!%s\n\n"
3814 "The capture file is probably not fully loaded.",
3815 simple_dialog_primary_start(), simple_dialog_primary_end());
3819 #ifndef NEW_PACKET_LIST
3820 /* Select that row, make it the focus row, and make it visible. */
3821 packet_list_set_selected_row(row);
3822 #endif /* NEW_PACKET_LIST */
3823 return TRUE; /* success */
3825 return FALSE; /* failure */
3829 cf_goto_frame(capture_file *cf, guint fnumber)
3834 for (fdata = cf->plist_start; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3837 if (fdata == NULL) {
3838 /* we didn't find a packet with that packet number */
3839 simple_status("There is no packet number %u.", fnumber);
3840 return FALSE; /* we failed to go to that packet */
3842 if (!fdata->flags.passed_dfilter) {
3843 /* that packet currently isn't displayed */
3844 /* XXX - add it to the set of displayed packets? */
3845 simple_status("Packet number %u isn't displayed.", fnumber);
3846 return FALSE; /* we failed to go to that packet */
3849 #ifdef NEW_PACKET_LIST
3850 row = new_packet_list_find_row_from_data(fdata, TRUE);
3852 /* We found that packet, and it's currently being displayed.
3853 Find what row it's in. */
3854 row = packet_list_find_row_from_data(fdata);
3855 g_assert(row != -1);
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; /* we got to that packet */
3864 cf_goto_top_frame(capture_file *cf _U_)
3866 #ifdef NEW_PACKET_LIST
3867 /* Find and select */
3868 new_packet_list_select_first_row();
3872 frame_data *lowest_fdata = NULL;
3874 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
3875 if (fdata->flags.passed_dfilter) {
3876 lowest_fdata = fdata;
3881 if (lowest_fdata == NULL) {
3885 /* We found that packet, and it's currently being displayed.
3886 Find what row it's in. */
3887 row = packet_list_find_row_from_data(lowest_fdata);
3888 g_assert(row != -1);
3890 /* Select that row, make it the focus row, and make it visible. */
3891 packet_list_set_selected_row(row);
3892 #endif /* NEW_PACKET_LIST */
3893 return TRUE; /* we got to that packet */
3897 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
3899 #ifdef NEW_PACKET_LIST
3900 /* Find and select */
3901 new_packet_list_select_last_row();
3905 frame_data *highest_fdata = NULL;
3907 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
3908 if (fdata->flags.passed_dfilter) {
3909 highest_fdata = fdata;
3913 if (highest_fdata == NULL) {
3917 /* We found that packet, and it's currently being displayed.
3918 Find what row it's in. */
3919 row = packet_list_find_row_from_data(highest_fdata);
3920 g_assert(row != -1);
3922 /* Select that row, make it the focus row, and make it visible. */
3923 packet_list_set_selected_row(row);
3924 #endif /* NEW_PACKET_LIST */
3925 return TRUE; /* we got to that packet */
3929 * Go to frame specified by currently selected protocol tree item.
3932 cf_goto_framenum(capture_file *cf)
3934 header_field_info *hfinfo;
3937 if (cf->finfo_selected) {
3938 hfinfo = cf->finfo_selected->hfinfo;
3940 if (hfinfo->type == FT_FRAMENUM) {
3941 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3943 return cf_goto_frame(cf, framenum);
3950 /* Select the packet on a given row. */
3952 cf_select_packet(capture_file *cf, int row)
3958 /* Get the frame data struct pointer for this frame */
3959 #ifdef NEW_PACKET_LIST
3960 fdata = new_packet_list_get_row_data(row);
3962 fdata = (frame_data *)packet_list_get_row_data(row);
3965 if (fdata == NULL) {
3966 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3967 the first entry is added to it by "real_insert_row()", that row
3968 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3969 our version and the vanilla GTK+ version).
3971 This means that a "select-row" signal is emitted; this causes
3972 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3975 "cf_select_packet()" fetches, above, the data associated with the
3976 row that was selected; however, as "gtk_clist_append()", which
3977 called "real_insert_row()", hasn't yet returned, we haven't yet
3978 associated any data with that row, so we get back a null pointer.
3980 We can't assume that there's only one frame in the frame list,
3981 either, as we may be filtering the display.
3983 We therefore assume that, if "row" is 0, i.e. the first row
3984 is being selected, and "cf->first_displayed" equals
3985 "cf->last_displayed", i.e. there's only one frame being
3986 displayed, that frame is the frame we want.
3988 This means we have to set "cf->first_displayed" and
3989 "cf->last_displayed" before adding the row to the
3990 GtkCList; see the comment in "add_packet_to_packet_list()". */
3992 if (row == 0 && cf->first_displayed == cf->last_displayed)
3993 fdata = cf->first_displayed;
3996 /* If fdata _still_ isn't set simply give up. */
3997 if (fdata == NULL) {
4001 /* Get the data in that frame. */
4002 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
4003 cf->pd, fdata->cap_len, &err, &err_info)) {
4004 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4005 cf_read_error_message(err, err_info), cf->filename);
4009 /* Record that this frame is the current frame. */
4010 cf->current_frame = fdata;
4011 cf->current_row = row;
4013 /* Create the logical protocol tree. */
4014 if (cf->edt != NULL)
4015 epan_dissect_free(cf->edt);
4017 /* We don't need the columns here. */
4018 cf->edt = epan_dissect_new(TRUE, TRUE);
4020 tap_build_interesting(cf->edt);
4021 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4024 dfilter_macro_build_ftv_cache(cf->edt->tree);
4026 cf_callback_invoke(cf_cb_packet_selected, cf);
4029 /* Unselect the selected packet, if any. */
4031 cf_unselect_packet(capture_file *cf)
4033 /* Destroy the epan_dissect_t for the unselected packet. */
4034 if (cf->edt != NULL) {
4035 epan_dissect_free(cf->edt);
4039 /* No packet is selected. */
4040 cf->current_frame = NULL;
4041 cf->current_row = 0;
4043 cf_callback_invoke(cf_cb_packet_unselected, cf);
4045 /* No protocol tree means no selected field. */
4046 cf_unselect_field(cf);
4049 /* Unset the selected protocol tree field, if any. */
4051 cf_unselect_field(capture_file *cf)
4053 cf->finfo_selected = NULL;
4055 cf_callback_invoke(cf_cb_field_unselected, cf);
4059 * Mark a particular frame.
4062 cf_mark_frame(capture_file *cf, frame_data *frame)
4064 if (! frame->flags.marked) {
4065 frame->flags.marked = TRUE;
4066 if (cf->count > cf->marked_count)
4072 * Unmark a particular frame.
4075 cf_unmark_frame(capture_file *cf, frame_data *frame)
4077 if (frame->flags.marked) {
4078 frame->flags.marked = FALSE;
4079 if (cf->marked_count > 0)
4085 * Ignore a particular frame.
4088 cf_ignore_frame(capture_file *cf, frame_data *frame)
4090 if (! frame->flags.ignored) {
4091 frame->flags.ignored = TRUE;
4092 if (cf->count > cf->ignored_count)
4093 cf->ignored_count++;
4098 * Un-ignore a particular frame.
4101 cf_unignore_frame(capture_file *cf, frame_data *frame)
4103 if (frame->flags.ignored) {
4104 frame->flags.ignored = FALSE;
4105 if (cf->ignored_count > 0)
4106 cf->ignored_count--;
4113 } save_callback_args_t;
4116 * Save a capture to a file, in a particular format, saving either
4117 * all packets, all currently-displayed packets, or all marked packets.
4119 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4120 * up a message box for the failure.
4123 save_packet(capture_file *cf _U_, frame_data *fdata,
4124 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4127 save_callback_args_t *args = argsp;
4128 struct wtap_pkthdr hdr;
4131 /* init the wtap header for saving */
4132 hdr.ts.secs = fdata->abs_ts.secs;
4133 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4134 hdr.caplen = fdata->cap_len;
4135 hdr.len = fdata->pkt_len;
4136 hdr.pkt_encap = fdata->lnk_t;
4138 /* and save the packet */
4139 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4140 cf_write_failure_alert_box(args->fname, err);
4147 * Can this capture file be saved in any format except by copying the raw data?
4150 cf_can_save_as(capture_file *cf)
4154 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4155 /* To save a file with Wiretap, Wiretap has to handle that format,
4156 and its code to handle that format must be able to write a file
4157 with this file's encapsulation type. */
4158 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4159 /* OK, we can write it out in this type. */
4164 /* No, we couldn't save it in any format. */
4169 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4171 gchar *from_filename;
4175 save_callback_args_t callback_args;
4177 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4179 /* don't write over an existing file. */
4180 /* this should've been already checked by our caller, just to be sure... */
4181 if (file_exists(fname)) {
4182 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4183 "%sCapture file: \"%s\" already exists!%s\n\n"
4184 "Please choose a different filename.",
4185 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4189 packet_range_process_init(range);
4191 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4192 /* We're not filtering packets, and we're saving it in the format
4193 it's already in, so we can just move or copy the raw data. */
4195 if (cf->is_tempfile) {
4196 /* The file being saved is a temporary file from a live
4197 capture, so it doesn't need to stay around under that name;
4198 first, try renaming the capture buffer file to the new name. */
4200 if (ws_rename(cf->filename, fname) == 0) {
4201 /* That succeeded - there's no need to copy the source file. */
4202 from_filename = NULL;
4205 if (errno == EXDEV) {
4206 /* They're on different file systems, so we have to copy the
4209 from_filename = cf->filename;
4211 /* The rename failed, but not because they're on different
4212 file systems - put up an error message. (Or should we
4213 just punt and try to copy? The only reason why I'd
4214 expect the rename to fail and the copy to succeed would
4215 be if we didn't have permission to remove the file from
4216 the temporary directory, and that might be fixable - but
4217 is it worth requiring the user to go off and fix it?) */
4218 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4219 file_rename_error_message(errno), fname);
4225 from_filename = cf->filename;
4228 /* It's a permanent file, so we should copy it, and not remove the
4231 from_filename = cf->filename;
4235 /* Copy the file, if we haven't moved it. */
4236 if (!copy_file_binary_mode(from_filename, fname))
4240 /* Either we're filtering packets, or we're saving in a different
4241 format; we can't do that by copying or moving the capture file,
4242 we have to do it by writing the packets out in Wiretap. */
4243 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4246 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4250 /* XXX - we let the user save a subset of the packets.
4252 If we do that, should we make that file the current file? If so,
4253 it means we can no longer get at the other packets. What does
4256 /* Iterate through the list of packets, processing the packets we were
4259 XXX - we've already called "packet_range_process_init(range)", but
4260 "process_specified_packets()" will do it again. Fortunately,
4261 that's harmless in this case, as we haven't done anything to
4262 "range" since we initialized it. */
4263 callback_args.pdh = pdh;
4264 callback_args.fname = fname;
4265 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4266 TRUE, save_packet, &callback_args)) {
4269 /* Completed successfully. */
4273 /* The user decided to abort the saving.
4274 XXX - remove the output file? */
4278 /* Error while saving. */
4279 wtap_dump_close(pdh, &err);
4283 if (!wtap_dump_close(pdh, &err)) {
4284 cf_close_failure_alert_box(fname, err);
4289 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4291 if (packet_range_process_all(range)) {
4292 /* We saved the entire capture, not just some packets from it.
4293 Open and read the file we saved it to.
4295 XXX - this is somewhat of a waste; we already have the
4296 packets, all this gets us is updated file type information
4297 (which we could just stuff into "cf"), and having the new
4298 file be the one we have opened and from which we're reading
4299 the data, and it means we have to spend time opening and
4300 reading the file, which could be a significant amount of
4301 time if the file is large. */
4302 cf->user_saved = TRUE;
4304 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4305 /* XXX - report errors if this fails?
4306 What should we return if it fails or is aborted? */
4308 switch (cf_read(cf, TRUE)) {
4312 /* Just because we got an error, that doesn't mean we were unable
4313 to read any of the file; we handle what we could get from the
4317 case CF_READ_ABORTED:
4318 /* The user bailed out of re-reading the capture file; the
4319 capture file has been closed - just return (without
4320 changing any menu settings; "cf_close()" set them
4321 correctly for the "no capture file open" state). */
4324 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
4330 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4335 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4336 gboolean for_writing, int file_type)
4339 /* Wiretap error. */
4342 case WTAP_ERR_NOT_REGULAR_FILE:
4343 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4344 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4348 case WTAP_ERR_RANDOM_OPEN_PIPE:
4349 /* Seen only when opening a capture file for reading. */
4350 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4351 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4355 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4356 /* Seen only when opening a capture file for reading. */
4357 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4358 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4362 case WTAP_ERR_UNSUPPORTED:
4363 /* Seen only when opening a capture file for reading. */
4364 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4365 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4367 filename, err_info);
4371 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4372 /* Seen only when opening a capture file for writing. */
4373 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4374 "The file \"%s\" is a pipe, and %s capture files can't be "
4375 "written to a pipe.",
4376 filename, wtap_file_type_string(file_type));
4379 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4380 /* Seen only when opening a capture file for writing. */
4381 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4382 "Wireshark doesn't support writing capture files in that format.");
4385 case WTAP_ERR_UNSUPPORTED_ENCAP:
4387 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4388 "Wireshark can't save this capture in that format.");
4390 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4391 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4393 filename, err_info);
4398 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4400 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4401 "Wireshark can't save this capture in that format.");
4403 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4404 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4409 case WTAP_ERR_BAD_RECORD:
4410 /* Seen only when opening a capture file for reading. */
4411 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4412 "The file \"%s\" appears to be damaged or corrupt.\n"
4414 filename, err_info);
4418 case WTAP_ERR_CANT_OPEN:
4420 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4421 "The file \"%s\" could not be created for some unknown reason.",
4424 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4425 "The file \"%s\" could not be opened for some unknown reason.",
4430 case WTAP_ERR_SHORT_READ:
4431 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4432 "The file \"%s\" appears to have been cut short"
4433 " in the middle of a packet or other data.",
4437 case WTAP_ERR_SHORT_WRITE:
4438 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4439 "A full header couldn't be written to the file \"%s\".",
4443 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4444 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4445 "Gzip compression not supported by this file type.");
4449 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4450 "The file \"%s\" could not be %s: %s.",
4452 for_writing ? "created" : "opened",
4453 wtap_strerror(err));
4458 open_failure_alert_box(filename, err, for_writing);
4463 file_rename_error_message(int err)
4466 static char errmsg_errno[1024+1];
4471 errmsg = "The path to the file \"%s\" doesn't exist.";
4475 errmsg = "You don't have permission to move the capture file to \"%s\".";
4479 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4480 "The file \"%%s\" could not be moved: %s.",
4481 wtap_strerror(err));
4482 errmsg = errmsg_errno;
4489 cf_read_error_message(int err, gchar *err_info)
4491 static char errmsg_errno[1024+1];
4495 case WTAP_ERR_UNSUPPORTED_ENCAP:
4496 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4497 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4502 case WTAP_ERR_BAD_RECORD:
4503 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4504 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4505 wtap_strerror(err), err_info);
4510 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4511 "An error occurred while reading from the file \"%%s\": %s.",
4512 wtap_strerror(err));
4515 return errmsg_errno;
4519 cf_write_failure_alert_box(const char *filename, int err)
4522 /* Wiretap error. */
4523 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4524 "An error occurred while writing to the file \"%s\": %s.",
4525 filename, wtap_strerror(err));
4528 write_failure_alert_box(filename, err);
4532 /* Check for write errors - if the file is being written to an NFS server,
4533 a write error may not show up until the file is closed, as NFS clients
4534 might not send writes to the server until the "write()" call finishes,
4535 so that the write may fail on the server but the "write()" may succeed. */
4537 cf_close_failure_alert_box(const char *filename, int err)
4540 /* Wiretap error. */
4543 case WTAP_ERR_CANT_CLOSE:
4544 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4545 "The file \"%s\" couldn't be closed for some unknown reason.",
4549 case WTAP_ERR_SHORT_WRITE:
4550 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4551 "Not all the packets could be written to the file \"%s\".",
4556 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4557 "An error occurred while closing the file \"%s\": %s.",
4558 filename, wtap_strerror(err));
4563 We assume that a close error from the OS is really a write error. */
4564 write_failure_alert_box(filename, err);
4568 /* Reload the current capture file. */
4570 cf_reload(capture_file *cf) {
4572 gboolean is_tempfile;
4575 /* If the file could be opened, "cf_open()" calls "cf_close()"
4576 to get rid of state for the old capture file before filling in state
4577 for the new capture file. "cf_close()" will remove the file if
4578 it's a temporary file; we don't want that to happen (for one thing,
4579 it'd prevent subsequent reopens from working). Remember whether it's
4580 a temporary file, mark it as not being a temporary file, and then
4581 reopen it as the type of file it was.
4583 Also, "cf_close()" will free "cf->filename", so we must make
4584 a copy of it first. */
4585 filename = g_strdup(cf->filename);
4586 is_tempfile = cf->is_tempfile;
4587 cf->is_tempfile = FALSE;
4588 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4589 switch (cf_read(cf, FALSE)) {
4593 /* Just because we got an error, that doesn't mean we were unable
4594 to read any of the file; we handle what we could get from the
4598 case CF_READ_ABORTED:
4599 /* The user bailed out of re-reading the capture file; the
4600 capture file has been closed - just free the capture file name
4601 string and return (without changing the last containing
4607 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4608 Instead, the file was left open, so we should restore "cf->is_tempfile"
4611 XXX - change the menu? Presumably "cf_open()" will do that;
4612 make sure it does! */
4613 cf->is_tempfile = is_tempfile;
4615 /* "cf_open()" made a copy of the file name we handed it, so
4616 we should free up our copy. */