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>
78 gboolean auto_scroll_live;
81 static nstime_t first_ts;
82 static nstime_t prev_dis_ts;
83 static guint32 cum_bytes = 0;
84 static gulong computed_elapsed;
86 static void cf_reset_state(capture_file *cf);
88 static int read_packet(capture_file *cf, dfilter_t *dfcode,
89 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
91 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
92 gboolean refilter, gboolean redissect);
94 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
96 static void match_subtree_text(proto_node *node, gpointer data);
97 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
99 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
101 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
103 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
105 static gboolean match_binary(capture_file *cf, frame_data *fdata,
107 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
109 static gboolean find_packet(capture_file *cf,
110 gboolean (*match_function)(capture_file *, frame_data *, void *),
113 static void cf_open_failure_alert_box(const char *filename, int err,
114 gchar *err_info, gboolean for_writing,
116 static const char *file_rename_error_message(int err);
117 static void cf_write_failure_alert_box(const char *filename, int err);
118 static void cf_close_failure_alert_box(const char *filename, int err);
119 #ifdef NEW_PACKET_LIST
120 static void ref_time_packets(capture_file *cf);
122 /* Update the progress bar this many times when reading a file. */
123 #define N_PROGBAR_UPDATES 100
124 /* We read around 200k/100ms domt update the progress bar more often than that */
125 #define MIN_QUANTUM 200000
126 #define MIN_NUMBER_OF_PACKET 1500
128 /* Number of "frame_data" structures per memory chunk.
129 XXX - is this the right number? */
130 #define FRAME_DATA_CHUNK_SIZE 1024
133 /* this callback mechanism should possibly be replaced by the g_signal_...() stuff (if I only would know how :-) */
135 cf_callback_t cb_fct;
137 } cf_callback_data_t;
139 static GList *cf_callbacks = NULL;
142 cf_callback_invoke(int event, gpointer data)
144 cf_callback_data_t *cb;
145 GList *cb_item = cf_callbacks;
147 /* there should be at least one interested */
148 g_assert(cb_item != NULL);
150 while(cb_item != NULL) {
152 cb->cb_fct(event, data, cb->user_data);
153 cb_item = g_list_next(cb_item);
159 cf_callback_add(cf_callback_t func, gpointer user_data)
161 cf_callback_data_t *cb;
163 cb = g_malloc(sizeof(cf_callback_data_t));
165 cb->user_data = user_data;
167 cf_callbacks = g_list_append(cf_callbacks, cb);
171 cf_callback_remove(cf_callback_t func)
173 cf_callback_data_t *cb;
174 GList *cb_item = cf_callbacks;
176 while(cb_item != NULL) {
178 if(cb->cb_fct == func) {
179 cf_callbacks = g_list_remove(cf_callbacks, cb);
183 cb_item = g_list_next(cb_item);
186 g_assert_not_reached();
190 cf_timestamp_auto_precision(capture_file *cf)
192 #ifdef NEW_PACKET_LIST
195 int prec = timestamp_get_precision();
198 /* don't try to get the file's precision if none is opened */
199 if(cf->state == FILE_CLOSED) {
203 /* if we are in auto mode, set precision of current file */
204 if(prec == TS_PREC_AUTO ||
205 prec == TS_PREC_AUTO_SEC ||
206 prec == TS_PREC_AUTO_DSEC ||
207 prec == TS_PREC_AUTO_CSEC ||
208 prec == TS_PREC_AUTO_MSEC ||
209 prec == TS_PREC_AUTO_USEC ||
210 prec == TS_PREC_AUTO_NSEC)
212 switch(wtap_file_tsprecision(cf->wth)) {
213 case(WTAP_FILE_TSPREC_SEC):
214 timestamp_set_precision(TS_PREC_AUTO_SEC);
216 case(WTAP_FILE_TSPREC_DSEC):
217 timestamp_set_precision(TS_PREC_AUTO_DSEC);
219 case(WTAP_FILE_TSPREC_CSEC):
220 timestamp_set_precision(TS_PREC_AUTO_CSEC);
222 case(WTAP_FILE_TSPREC_MSEC):
223 timestamp_set_precision(TS_PREC_AUTO_MSEC);
225 case(WTAP_FILE_TSPREC_USEC):
226 timestamp_set_precision(TS_PREC_AUTO_USEC);
228 case(WTAP_FILE_TSPREC_NSEC):
229 timestamp_set_precision(TS_PREC_AUTO_NSEC);
232 g_assert_not_reached();
235 #ifdef NEW_PACKET_LIST
236 /* Set the column widths of those columns that show the time in
237 "command-line-specified" format. */
238 for (i = 0; i < cf->cinfo.num_cols; i++) {
239 if (col_has_time_fmt(&cf->cinfo, i)) {
240 new_packet_list_resize_column(i);
247 cf_get_computed_elapsed(void)
249 return computed_elapsed;
252 static void reset_elapsed(void)
254 computed_elapsed = 0;
257 static void compute_elapsed(GTimeVal *start_time)
262 g_get_current_time(&time_now);
264 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
265 time_now.tv_usec - start_time->tv_usec;
267 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
271 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
276 wth = wtap_open_offline(fname, err, &err_info, TRUE);
280 /* The open succeeded. Close whatever capture file we had open,
281 and fill in the information for this file. */
284 /* Cleanup all data structures used for dissection. */
285 cleanup_dissection();
286 /* Initialize all data structures used for dissection. */
289 /* We're about to start reading the file. */
290 cf->state = FILE_READ_IN_PROGRESS;
295 /* Set the file name because we need it to set the follow stream filter.
296 XXX - is that still true? We need it for other reasons, though,
298 cf->filename = g_strdup(fname);
300 /* Indicate whether it's a permanent or temporary file. */
301 cf->is_tempfile = is_tempfile;
303 /* If it's a temporary capture buffer file, mark it as not saved. */
304 cf->user_saved = !is_tempfile;
308 cf->cd_t = wtap_file_type(cf->wth);
310 cf->displayed_count = 0;
311 cf->marked_count = 0;
312 cf->drops_known = FALSE;
314 cf->snap = wtap_snapshot_length(cf->wth);
316 /* Snapshot length not known. */
317 cf->has_snap = FALSE;
318 cf->snap = WTAP_MAX_PACKET_SIZE;
322 nstime_set_zero(&cf->elapsed_time);
323 nstime_set_unset(&first_ts);
324 nstime_set_unset(&prev_dis_ts);
327 #if GLIB_CHECK_VERSION(2,10,0)
329 /* memory chunks have been deprecated in favor of the slice allocator,
330 * which has been added in 2.10
332 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
334 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
336 g_assert(cf->plist_chunk);
339 #ifdef NEW_PACKET_LIST
340 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
341 cf_timestamp_auto_precision(cf);
343 new_packet_list_queue_draw();
345 /* change the time formats now, as we might have a new precision */
346 cf_change_time_formats(cf);
348 fileset_file_opened(fname);
350 if(cf->cd_t == WTAP_FILE_BER) {
351 /* tell the BER dissector the file name */
352 ber_set_filename(cf->filename);
358 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
364 * Reset the state for the currently closed file, but don't do the
365 * UI callbacks; this is for use in "cf_open()", where we don't
366 * want the UI to go from "file open" to "file closed" back to
367 * "file open", we want it to go from "old file open" to "new file
368 * open and being read".
371 cf_reset_state(capture_file *cf)
373 /* Die if we're in the middle of reading a file. */
374 g_assert(cf->state != FILE_READ_IN_PROGRESS);
380 /* We have no file open... */
381 if (cf->filename != NULL) {
382 /* If it's a temporary file, remove it. */
384 ws_unlink(cf->filename);
385 g_free(cf->filename);
388 /* ...which means we have nothing to save. */
389 cf->user_saved = FALSE;
391 #if GLIB_CHECK_VERSION(2,10,0)
392 if (cf->plist != NULL)
393 g_slice_free_chain(frame_data, cf->plist, next);
395 /* memory chunks have been deprecated in favor of the slice allocator,
396 * which has been added in 2.10
398 if (cf->plist_chunk != NULL) {
399 g_mem_chunk_destroy(cf->plist_chunk);
400 cf->plist_chunk = NULL;
403 if (cf->rfcode != NULL) {
404 dfilter_free(cf->rfcode);
408 cf->plist_end = NULL;
409 cf_unselect_packet(cf); /* nothing to select */
410 cf->first_displayed = NULL;
411 cf->last_displayed = NULL;
413 /* No frame selected, no field in that frame selected. */
414 cf->current_frame = NULL;
416 cf->finfo_selected = NULL;
418 /* Clear the packet list. */
419 #ifdef NEW_PACKET_LIST
420 new_packet_list_freeze();
421 new_packet_list_clear();
422 new_packet_list_thaw();
424 packet_list_freeze();
431 nstime_set_zero(&cf->elapsed_time);
433 reset_tap_listeners();
435 /* We have no file open. */
436 cf->state = FILE_CLOSED;
438 fileset_file_closed();
441 /* Reset everything to a pristine state */
443 cf_close(capture_file *cf)
445 /* do GUI things even if file is already closed,
446 * e.g. to cleanup things if a capture couldn't be started */
447 cf_callback_invoke(cf_cb_file_closing, cf);
449 /* close things, if not already closed before */
450 if(cf->state != FILE_CLOSED) {
451 color_filters_cleanup();
453 cleanup_dissection();
456 cf_callback_invoke(cf_cb_file_closed, cf);
459 /* an out of memory exception occured, wait for a user button press to exit */
460 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
465 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
469 progbar_val = (gfloat) file_pos / (gfloat) size;
470 if (progbar_val > 1.0) {
471 /* The file probably grew while we were reading it.
472 Update file size, and try again. */
473 size = wtap_file_size(cf->wth, NULL);
475 progbar_val = (gfloat) file_pos / (gfloat) size;
476 /* If it's still > 1, either "wtap_file_size()" failed (in which
477 case there's not much we can do about it), or the file
478 *shrank* (in which case there's not much we can do about
479 it); just clip the progress value at 1.0. */
480 if (progbar_val > 1.0f)
487 cf_read(capture_file *cf)
491 const gchar *name_ptr;
493 char errmsg_errno[1024+1];
495 progdlg_t *volatile progbar = NULL;
497 volatile gint64 size;
498 volatile float progbar_val;
500 gchar status_str[100];
501 volatile gint64 progbar_nextstep;
502 volatile gint64 progbar_quantum;
504 gboolean filtering_tap_listeners;
506 volatile int count = 0;
508 volatile int displayed_once = 0;
512 /* Compile the current display filter.
513 * We assume this will not fail since cf->dfilter is only set in
514 * cf_filter IFF the filter was valid.
516 compiled = dfilter_compile(cf->dfilter, &dfcode);
517 g_assert(!cf->dfilter || (compiled && dfcode));
519 /* Do we have any tap listeners with filters? */
520 filtering_tap_listeners = have_filtering_tap_listeners();
522 /* Get the union of the flags for all tap listeners. */
523 tap_flags = union_of_tap_listener_flags();
525 reset_tap_listeners();
527 cf_callback_invoke(cf_cb_file_read_start, cf);
529 name_ptr = get_basename(cf->filename);
531 /* Find the size of the file. */
532 size = wtap_file_size(cf->wth, NULL);
534 /* Update the progress bar when it gets to this value. */
535 progbar_nextstep = 0;
536 /* When we reach the value that triggers a progress bar update,
537 bump that value by this amount. */
539 progbar_quantum = size/N_PROGBAR_UPDATES;
540 if (progbar_quantum < MIN_QUANTUM)
541 progbar_quantum = MIN_QUANTUM;
544 /* Progress so far. */
547 #ifdef NEW_PACKET_LIST
548 new_packet_list_freeze();
550 packet_list_freeze();
554 g_get_current_time(&start_time);
556 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
559 /* Create the progress bar if necessary.
560 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
562 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
563 progbar_val = calc_progbar_val( cf, size, data_offset);
564 progbar = delayed_create_progress_dlg("Loading", name_ptr,
565 TRUE, &stop_flag, &start_time, progbar_val);
568 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
569 when we update it, we have to run the GTK+ main loop to get it
570 to repaint what's pending, and doing so may involve an "ioctl()"
571 to see if there's any pending input from an X server, and doing
572 that for every packet can be costly, especially on a big file. */
573 if (data_offset >= progbar_nextstep) {
574 if (progbar != NULL) {
575 progbar_val = calc_progbar_val( cf, size, data_offset);
576 /* update the packet lists content on the first run or frequently on very large files */
577 /* (on smaller files the display update takes longer than reading the file) */
579 if (progbar_quantum > 500000 || displayed_once == 0) {
580 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
582 #ifdef NEW_PACKET_LIST
583 new_packet_list_thaw();
584 if (auto_scroll_live)
585 new_packet_list_moveto_end();
586 new_packet_list_freeze();
589 if (auto_scroll_live)
590 packet_list_moveto_end();
591 packet_list_freeze();
592 #endif /* NEW_PACKET_LIST */
595 #endif /* HAVE_LIBPCAP */
596 g_snprintf(status_str, sizeof(status_str),
597 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
598 data_offset / 1024, size / 1024);
599 update_progress_dlg(progbar, progbar_val, status_str);
601 progbar_nextstep += progbar_quantum;
606 /* Well, the user decided to abort the read. He/She will be warned and
607 it might be enough for him/her to work with the already loaded
609 This is especially true for very large capture files, where you don't
610 want to wait loading the whole file (which may last minutes or even
611 hours even on fast machines) just to see that it was the wrong file. */
615 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
617 CATCH(OutOfMemoryError) {
620 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
621 "%sOut Of Memory!%s\n"
623 "Sorry, but Wireshark has to terminate now!\n"
625 "Some infos / workarounds can be found at:\n"
626 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
627 simple_dialog_primary_start(), simple_dialog_primary_end());
628 /* we have to terminate, as we cannot recover from the memory error */
629 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
631 main_window_update();
632 /* XXX - how to avoid a busy wait? */
640 /* Cleanup and release all dfilter resources */
642 dfilter_free(dfcode);
645 /* We're done reading the file; destroy the progress bar if it was created. */
647 destroy_progress_dlg(progbar);
649 /* We're done reading sequentially through the file. */
650 cf->state = FILE_READ_DONE;
652 /* Close the sequential I/O side, to free up memory it requires. */
653 wtap_sequential_close(cf->wth);
655 /* Allow the protocol dissectors to free up memory that they
656 * don't need after the sequential run-through of the packets. */
657 postseq_cleanup_all_protocols();
659 /* compute the time it took to load the file */
660 compute_elapsed(&start_time);
662 /* Set the file encapsulation type now; we don't know what it is until
663 we've looked at all the packets, as we don't know until then whether
664 there's more than one type (and thus whether it's
665 WTAP_ENCAP_PER_PACKET). */
666 cf->lnk_t = wtap_file_encap(cf->wth);
668 cf->current_frame = cf->first_displayed;
671 #ifdef NEW_PACKET_LIST
672 new_packet_list_thaw();
677 cf_callback_invoke(cf_cb_file_read_finished, cf);
679 /* If we have any displayed packets to select, select the first of those
680 packets by making the first row the selected row. */
681 if (cf->first_displayed != NULL){
682 #ifdef NEW_PACKET_LIST
683 new_packet_list_select_first_row();
685 packet_list_select_row(0);
686 #endif /* NEW_PACKET_LIST */
690 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
691 "%sFile loading was cancelled!%s\n"
693 "The remaining packets in the file were discarded.\n"
695 "As a lot of packets from the original file will be missing,\n"
696 "remember to be careful when saving the current content to a file.\n",
697 simple_dialog_primary_start(), simple_dialog_primary_end());
698 return CF_READ_ERROR;
702 /* Put up a message box noting that the read failed somewhere along
703 the line. Don't throw out the stuff we managed to read, though,
707 case WTAP_ERR_UNSUPPORTED_ENCAP:
708 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
709 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
712 errmsg = errmsg_errno;
715 case WTAP_ERR_CANT_READ:
716 errmsg = "An attempt to read from the capture file failed for"
717 " some unknown reason.";
720 case WTAP_ERR_SHORT_READ:
721 errmsg = "The capture file appears to have been cut short"
722 " in the middle of a packet.";
725 case WTAP_ERR_BAD_RECORD:
726 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
727 "The capture file appears to be damaged or corrupt.\n(%s)",
730 errmsg = errmsg_errno;
734 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
735 "An error occurred while reading the"
736 " capture file: %s.", wtap_strerror(err));
737 errmsg = errmsg_errno;
740 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
741 return CF_READ_ERROR;
748 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
750 cf_status_t cf_status;
752 cf_status = cf_open(cf, fname, is_tempfile, err);
757 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
759 gint64 data_offset = 0;
761 volatile int newly_displayed_packets = 0;
763 gboolean filtering_tap_listeners;
765 volatile gboolean visible = FALSE;
768 /* Compile the current display filter.
769 * We assume this will not fail since cf->dfilter is only set in
770 * cf_filter IFF the filter was valid.
772 compiled = dfilter_compile(cf->dfilter, &dfcode);
773 g_assert(!cf->dfilter || (compiled && dfcode));
775 /* Do we have any tap listeners with filters? */
776 filtering_tap_listeners = have_filtering_tap_listeners();
778 /* Get the union of the flags for all tap listeners. */
779 tap_flags = union_of_tap_listener_flags();
783 #ifdef NEW_PACKET_LIST
784 new_packet_list_check_end();
785 new_packet_list_freeze();
787 packet_list_check_end();
788 packet_list_freeze();
791 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
793 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
794 if (cf->state == FILE_READ_ABORTED) {
795 /* Well, the user decided to exit Wireshark. Break out of the
796 loop, and let the code below (which is called even if there
797 aren't any packets left to read) exit. */
801 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
802 data_offset) != -1) {
804 newly_displayed_packets++;
809 CATCH(OutOfMemoryError) {
812 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
813 "%sOut Of Memory!%s\n"
815 "Sorry, but Wireshark has to terminate now!\n"
817 "The capture file is not lost, it can be found at:\n"
820 "Some infos / workarounds can be found at:\n"
821 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
822 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
823 /* we have to terminate, as we cannot recover from the memory error */
824 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
826 main_window_update();
827 /* XXX - how to avoid a busy wait? */
830 #ifdef NEW_PACKET_LIST
831 new_packet_list_thaw();
835 return CF_READ_ABORTED;
841 /* Cleanup and release all dfilter resources */
843 dfilter_free(dfcode);
846 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
847 cf->count, cf->state, *err);*/
849 #ifdef NEW_PACKET_LIST
850 new_packet_list_thaw();
852 /* XXX - this causes "flickering" of the list */
856 /* moving to the end of the packet list - if the user requested so and
857 we have some new packets. */
858 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
859 #ifdef NEW_PACKET_LIST
861 new_packet_list_moveto_end();
863 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
864 packet_list_thaw() is done, see bugzilla 1188 */
865 /* XXX - this cheats and looks inside the packet list to find the final
867 packet_list_moveto_end();
868 #endif /* NEW_PACKET_LIST */
870 if (cf->state == FILE_READ_ABORTED) {
871 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
872 so that our caller can kill off the capture child process;
873 this will cause an EOF on the pipe from the child, so
874 "cf_finish_tail()" will be called, and it will clean up
876 return CF_READ_ABORTED;
877 } else if (*err != 0) {
878 /* We got an error reading the capture file.
879 XXX - pop up a dialog box instead? */
880 g_warning("Error \"%s\" while reading: \"%s\"\n",
881 wtap_strerror(*err), cf->filename);
883 return CF_READ_ERROR;
889 cf_finish_tail(capture_file *cf, int *err)
894 gboolean filtering_tap_listeners;
898 /* Compile the current display filter.
899 * We assume this will not fail since cf->dfilter is only set in
900 * cf_filter IFF the filter was valid.
902 compiled = dfilter_compile(cf->dfilter, &dfcode);
903 g_assert(!cf->dfilter || (compiled && dfcode));
905 /* Do we have any tap listeners with filters? */
906 filtering_tap_listeners = have_filtering_tap_listeners();
908 /* Get the union of the flags for all tap listeners. */
909 tap_flags = union_of_tap_listener_flags();
911 if(cf->wth == NULL) {
913 return CF_READ_ERROR;
916 #ifdef NEW_PACKET_LIST
917 new_packet_list_check_end();
918 new_packet_list_freeze();
920 packet_list_check_end();
921 packet_list_freeze();
924 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
925 if (cf->state == FILE_READ_ABORTED) {
926 /* Well, the user decided to abort the read. Break out of the
927 loop, and let the code below (which is called even if there
928 aren't any packets left to read) exit. */
931 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
934 /* Cleanup and release all dfilter resources */
936 dfilter_free(dfcode);
939 #ifdef NEW_PACKET_LIST
940 new_packet_list_thaw();
945 if (cf->state == FILE_READ_ABORTED) {
946 /* Well, the user decided to abort the read. We're only called
947 when the child capture process closes the pipe to us (meaning
948 it's probably exited), so we can just close the capture
949 file; we return CF_READ_ABORTED so our caller can do whatever
950 is appropriate when that happens. */
952 return CF_READ_ABORTED;
955 if (auto_scroll_live && cf->plist_end != NULL)
956 #ifdef NEW_PACKET_LIST
957 new_packet_list_moveto_end();
959 /* XXX - this cheats and looks inside the packet list to find the final
961 packet_list_moveto_end();
964 /* We're done reading sequentially through the file. */
965 cf->state = FILE_READ_DONE;
967 /* We're done reading sequentially through the file; close the
968 sequential I/O side, to free up memory it requires. */
969 wtap_sequential_close(cf->wth);
971 /* Allow the protocol dissectors to free up memory that they
972 * don't need after the sequential run-through of the packets. */
973 postseq_cleanup_all_protocols();
975 /* Set the file encapsulation type now; we don't know what it is until
976 we've looked at all the packets, as we don't know until then whether
977 there's more than one type (and thus whether it's
978 WTAP_ENCAP_PER_PACKET). */
979 cf->lnk_t = wtap_file_encap(cf->wth);
982 /* We got an error reading the capture file.
983 XXX - pop up a dialog box? */
984 return CF_READ_ERROR;
989 #endif /* HAVE_LIBPCAP */
992 cf_get_display_name(capture_file *cf)
994 const gchar *displayname;
996 /* Return a name to use in displays */
997 if (!cf->is_tempfile) {
998 /* Get the last component of the file name, and use that. */
1000 displayname = get_basename(cf->filename);
1002 displayname="(No file)";
1005 /* The file we read is a temporary file from a live capture;
1006 we don't mention its name. */
1007 displayname = "(Untitled)";
1012 /* XXX - use a macro instead? */
1014 cf_get_packet_count(capture_file *cf)
1019 /* XXX - use a macro instead? */
1021 cf_set_packet_count(capture_file *cf, int packet_count)
1023 cf->count = packet_count;
1026 /* XXX - use a macro instead? */
1028 cf_is_tempfile(capture_file *cf)
1030 return cf->is_tempfile;
1033 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1035 cf->is_tempfile = is_tempfile;
1039 /* XXX - use a macro instead? */
1040 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1042 cf->drops_known = drops_known;
1045 /* XXX - use a macro instead? */
1046 void cf_set_drops(capture_file *cf, guint32 drops)
1051 /* XXX - use a macro instead? */
1052 gboolean cf_get_drops_known(capture_file *cf)
1054 return cf->drops_known;
1057 /* XXX - use a macro instead? */
1058 guint32 cf_get_drops(capture_file *cf)
1063 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1065 cf->rfcode = rfcode;
1068 #ifdef NEW_PACKET_LIST
1070 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1071 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1073 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1075 gboolean add_to_packet_list)
1077 gboolean create_proto_tree = FALSE;
1082 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1084 /* just add some value here until we know if it is being displayed or not */
1085 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1087 /* If we don't have the time stamp of the first packet in the
1088 capture, it's because this is the first packet. Save the time
1089 stamp of this packet as the time stamp of the first packet. */
1090 if (nstime_is_unset(&first_ts)) {
1091 first_ts = fdata->abs_ts;
1093 /* if this frames is marked as a reference time frame, reset
1094 firstsec and firstusec to this frame */
1095 if(fdata->flags.ref_time){
1096 first_ts = fdata->abs_ts;
1099 /* If we don't have the time stamp of the previous displayed packet,
1100 it's because this is the first displayed packet. Save the time
1101 stamp of this packet as the time stamp of the previous displayed
1103 if (nstime_is_unset(&prev_dis_ts)) {
1104 prev_dis_ts = fdata->abs_ts;
1107 /* Get the time elapsed between the first packet and this packet. */
1108 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1110 /* If it's greater than the current elapsed time, set the elapsed time
1111 to it (we check for "greater than" so as not to be confused by
1112 time moving backwards). */
1113 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1114 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1115 cf->elapsed_time = fdata->rel_ts;
1118 /* Get the time elapsed between the previous displayed packet and
1120 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1123 + we have a display filter and are re-applying it;
1124 + we have tap listeners with filters;
1125 + we have tap listeners that require a protocol tree;
1127 allocate a protocol tree root node, so that we'll construct
1128 a protocol tree against which a filter expression can be
1130 if ((dfcode != NULL && refilter) ||
1131 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1132 create_proto_tree = TRUE;
1134 /* Dissect the frame. */
1135 epan_dissect_init(&edt, create_proto_tree, FALSE);
1137 if (dfcode != NULL && refilter) {
1138 epan_dissect_prime_dfilter(&edt, dfcode);
1141 tap_queue_init(&edt);
1142 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1143 tap_push_tapped_queue(&edt);
1145 /* If we have a display filter, apply it if we're refiltering, otherwise
1146 leave the "passed_dfilter" flag alone.
1148 If we don't have a display filter, set "passed_dfilter" to 1. */
1149 if (dfcode != NULL) {
1151 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1154 fdata->flags.passed_dfilter = 1;
1156 if (add_to_packet_list) {
1157 /* We fill the needed columns from new_packet_list */
1158 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1161 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1163 /* This frame either passed the display filter list or is marked as
1164 a time reference frame. All time reference frames are displayed
1165 even if they dont pass the display filter */
1166 if(fdata->flags.ref_time){
1167 /* if this was a TIME REF frame we should reset the cul bytes field */
1168 cum_bytes = fdata->pkt_len;
1169 fdata->cum_bytes = cum_bytes;
1171 /* increase cum_bytes with this packets length */
1172 cum_bytes += fdata->pkt_len;
1175 /* If we haven't yet seen the first frame, this is it.
1177 XXX - we must do this before we add the row to the display,
1178 as, if the display's GtkCList's selection mode is
1179 GTK_SELECTION_BROWSE, when the first entry is added to it,
1180 "cf_select_packet()" will be called, and it will fetch the row
1181 data for the 0th row, and will get a null pointer rather than
1182 "fdata", as "gtk_clist_append()" won't yet have returned and
1183 thus "gtk_clist_set_row_data()" won't yet have been called.
1185 We thus need to leave behind bread crumbs so that
1186 "cf_select_packet()" can find this frame. See the comment
1187 in "cf_select_packet()". */
1188 if (cf->first_displayed == NULL)
1189 cf->first_displayed = fdata;
1191 /* This is the last frame we've seen so far. */
1192 cf->last_displayed = fdata;
1194 /* Set the time of the previous displayed frame to the time of this
1196 prev_dis_ts = fdata->abs_ts;
1198 cf->displayed_count++;
1201 epan_dissect_cleanup(&edt);
1208 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1209 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1211 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1213 gboolean add_to_packet_list _U_)
1215 gboolean create_proto_tree = FALSE;
1222 /* just add some value here until we know if it is being displayed or not */
1223 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1225 /* If we don't have the time stamp of the first packet in the
1226 capture, it's because this is the first packet. Save the time
1227 stamp of this packet as the time stamp of the first packet. */
1228 if (nstime_is_unset(&first_ts)) {
1229 first_ts = fdata->abs_ts;
1231 /* if this frames is marked as a reference time frame, reset
1232 firstsec and firstusec to this frame */
1233 if(fdata->flags.ref_time){
1234 first_ts = fdata->abs_ts;
1237 /* If we don't have the time stamp of the previous displayed packet,
1238 it's because this is the first displayed packet. Save the time
1239 stamp of this packet as the time stamp of the previous displayed
1241 if (nstime_is_unset(&prev_dis_ts)) {
1242 prev_dis_ts = fdata->abs_ts;
1245 /* Get the time elapsed between the first packet and this packet. */
1246 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1248 /* If it's greater than the current elapsed time, set the elapsed time
1249 to it (we check for "greater than" so as not to be confused by
1250 time moving backwards). */
1251 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1252 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1253 cf->elapsed_time = fdata->rel_ts;
1256 /* Get the time elapsed between the previous displayed packet and
1258 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1262 we have a display filter and are re-applying it;
1264 we have a list of color filters;
1266 we have tap listeners with filters;
1268 we have tap listeners that require a protocol tree;
1270 we have custom columns;
1272 allocate a protocol tree root node, so that we'll construct
1273 a protocol tree against which a filter expression can be
1275 if ((dfcode != NULL && refilter) ||
1276 color_filters_used() ||
1277 have_custom_cols(cinfo) ||
1278 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1279 create_proto_tree = TRUE;
1281 /* Dissect the frame. */
1282 epan_dissect_init(&edt, create_proto_tree, FALSE);
1284 if (dfcode != NULL && refilter) {
1285 epan_dissect_prime_dfilter(&edt, dfcode);
1288 /* prepare color filters */
1289 color_filters_prime_edt(&edt);
1290 col_custom_prime_edt(&edt, cinfo);
1292 tap_queue_init(&edt);
1293 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1294 tap_push_tapped_queue(&edt);
1296 /* If we have a display filter, apply it if we're refiltering, otherwise
1297 leave the "passed_dfilter" flag alone.
1299 If we don't have a display filter, set "passed_dfilter" to 1. */
1300 if (dfcode != NULL) {
1302 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1305 fdata->flags.passed_dfilter = 1;
1307 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1309 /* This frame either passed the display filter list or is marked as
1310 a time reference frame. All time reference frames are displayed
1311 even if they dont pass the display filter */
1312 if(fdata->flags.ref_time){
1313 /* if this was a TIME REF frame we should reset the cul bytes field */
1314 cum_bytes = fdata->pkt_len;
1315 fdata->cum_bytes = cum_bytes;
1317 /* increase cum_bytes with this packets length */
1318 cum_bytes += fdata->pkt_len;
1321 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1323 /* If we haven't yet seen the first frame, this is it.
1325 XXX - we must do this before we add the row to the display,
1326 as, if the display's GtkCList's selection mode is
1327 GTK_SELECTION_BROWSE, when the first entry is added to it,
1328 "cf_select_packet()" will be called, and it will fetch the row
1329 data for the 0th row, and will get a null pointer rather than
1330 "fdata", as "gtk_clist_append()" won't yet have returned and
1331 thus "gtk_clist_set_row_data()" won't yet have been called.
1333 We thus need to leave behind bread crumbs so that
1334 "cf_select_packet()" can find this frame. See the comment
1335 in "cf_select_packet()". */
1336 if (cf->first_displayed == NULL)
1337 cf->first_displayed = fdata;
1339 /* This is the last frame we've seen so far. */
1340 cf->last_displayed = fdata;
1342 row = packet_list_append(cinfo->col_data, fdata);
1344 /* colorize packet: first apply color filters
1345 * then if packet is marked, use preferences to overwrite color
1346 * we do both to make sure that when a packet gets un-marked, the
1347 * color will be correctly set (fixes bug 2038)
1349 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1350 if (fdata->flags.marked) {
1351 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1354 /* Set the time of the previous displayed frame to the time of this
1356 prev_dis_ts = fdata->abs_ts;
1358 cf->displayed_count++;
1361 epan_dissect_cleanup(&edt);
1366 /* read in a new packet */
1367 /* returns the row of the new packet in the packet list or -1 if not displayed */
1369 read_packet(capture_file *cf, dfilter_t *dfcode,
1370 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1372 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1373 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1374 const guchar *buf = wtap_buf_ptr(cf->wth);
1377 frame_data *plist_end;
1382 /* Allocate the next list entry, and add it to the list.
1383 * memory chunks have been deprecated in favor of the slice allocator,
1384 * which has been added in 2.10
1386 #if GLIB_CHECK_VERSION(2,10,0)
1387 fdata = g_slice_new(frame_data);
1389 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1391 fdata->num = cf->count;
1395 fdata->pkt_len = phdr->len;
1396 fdata->cap_len = phdr->caplen;
1397 fdata->file_off = offset;
1398 /* To save some memory, we coarcese it into a gint8 */
1399 g_assert(phdr->pkt_encap <= G_MAXINT8);
1400 fdata->lnk_t = (gint8) phdr->pkt_encap;
1401 fdata->abs_ts.secs = phdr->ts.secs;
1402 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1403 fdata->flags.encoding = CHAR_ASCII;
1404 fdata->flags.visited = 0;
1405 fdata->flags.marked = 0;
1406 fdata->flags.ref_time = 0;
1407 fdata->color_filter = NULL;
1408 #ifdef NEW_PACKET_LIST
1409 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1410 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1413 if (cf->plist_end != NULL)
1414 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &cf->plist_end->abs_ts);
1416 nstime_set_zero(&fdata->del_cap_ts);
1421 epan_dissect_init(&edt, TRUE, FALSE);
1422 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1423 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1424 passed = dfilter_apply_edt(cf->rfcode, &edt);
1425 epan_dissect_cleanup(&edt);
1429 plist_end = cf->plist_end;
1430 fdata->prev = plist_end;
1431 if (plist_end != NULL)
1432 plist_end->next = fdata;
1435 cf->plist_end = fdata;
1437 cf->f_datalen = offset + phdr->caplen;
1439 if (!cf->redissecting) {
1440 row = add_packet_to_packet_list(fdata, cf, dfcode,
1441 filtering_tap_listeners, tap_flags,
1442 pseudo_header, buf, TRUE, TRUE);
1445 /* We didn't pass read filter so roll back count */
1448 /* XXX - if we didn't have read filters, or if we could avoid
1449 allocating the "frame_data" structure until we knew whether
1450 the frame passed the read filter, we could use a G_ALLOC_ONLY
1453 ...but, at least in one test I did, where I just made the chunk
1454 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1455 seem to save a noticeable amount of time or space. */
1456 #if GLIB_CHECK_VERSION(2,10,0)
1457 /* memory chunks have been deprecated in favor of the slice allocator,
1458 * which has been added in 2.10
1460 g_slice_free(frame_data,fdata);
1462 g_mem_chunk_free(cf->plist_chunk, fdata);
1470 cf_merge_files(char **out_filenamep, int in_file_count,
1471 char *const *in_filenames, int file_type, gboolean do_append)
1473 merge_in_file_t *in_files;
1479 int open_err, read_err, write_err, close_err;
1483 char errmsg_errno[1024+1];
1485 gboolean got_read_error = FALSE, got_write_error = FALSE;
1487 progdlg_t *progbar = NULL;
1489 gint64 f_len, file_pos;
1491 GTimeVal start_time;
1492 gchar status_str[100];
1493 gint64 progbar_nextstep;
1494 gint64 progbar_quantum;
1496 /* open the input files */
1497 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1498 &open_err, &err_info, &err_fileno)) {
1500 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1505 if (*out_filenamep != NULL) {
1506 out_filename = *out_filenamep;
1507 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1511 out_fd = create_tempfile(&tmpname, "wireshark");
1514 out_filename = g_strdup(tmpname);
1515 *out_filenamep = out_filename;
1519 merge_close_in_files(in_file_count, in_files);
1521 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1525 pdh = wtap_dump_fdopen(out_fd, file_type,
1526 merge_select_frame_type(in_file_count, in_files),
1527 merge_max_snapshot_length(in_file_count, in_files),
1528 FALSE /* compressed */, &open_err);
1531 merge_close_in_files(in_file_count, in_files);
1533 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1538 /* Get the sum of the sizes of all the files. */
1540 for (i = 0; i < in_file_count; i++)
1541 f_len += in_files[i].size;
1543 /* Update the progress bar when it gets to this value. */
1544 progbar_nextstep = 0;
1545 /* When we reach the value that triggers a progress bar update,
1546 bump that value by this amount. */
1547 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1548 /* Progress so far. */
1552 g_get_current_time(&start_time);
1554 /* do the merge (or append) */
1557 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1560 wth = merge_read_packet(in_file_count, in_files, &read_err,
1564 got_read_error = TRUE;
1568 /* Get the sum of the data offsets in all of the files. */
1570 for (i = 0; i < in_file_count; i++)
1571 data_offset += in_files[i].data_offset;
1573 /* Create the progress bar if necessary.
1574 We check on every iteration of the loop, so that it takes no
1575 longer than the standard time to create it (otherwise, for a
1576 large file, we might take considerably longer than that standard
1577 time in order to get to the next progress bar step). */
1578 if (progbar == NULL) {
1579 progbar = delayed_create_progress_dlg("Merging", "files",
1580 FALSE, &stop_flag, &start_time, progbar_val);
1583 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1584 when we update it, we have to run the GTK+ main loop to get it
1585 to repaint what's pending, and doing so may involve an "ioctl()"
1586 to see if there's any pending input from an X server, and doing
1587 that for every packet can be costly, especially on a big file. */
1588 if (data_offset >= progbar_nextstep) {
1589 /* Get the sum of the seek positions in all of the files. */
1591 for (i = 0; i < in_file_count; i++)
1592 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1593 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1594 if (progbar_val > 1.0f) {
1595 /* Some file probably grew while we were reading it.
1596 That "shouldn't happen", so we'll just clip the progress
1600 if (progbar != NULL) {
1601 g_snprintf(status_str, sizeof(status_str),
1602 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1603 file_pos / 1024, f_len / 1024);
1604 update_progress_dlg(progbar, progbar_val, status_str);
1606 progbar_nextstep += progbar_quantum;
1610 /* Well, the user decided to abort the merge. */
1614 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1615 wtap_buf_ptr(wth), &write_err)) {
1616 got_write_error = TRUE;
1621 /* We're done merging the files; destroy the progress bar if it was created. */
1622 if (progbar != NULL)
1623 destroy_progress_dlg(progbar);
1625 merge_close_in_files(in_file_count, in_files);
1626 if (!got_read_error && !got_write_error) {
1627 if (!wtap_dump_close(pdh, &write_err))
1628 got_write_error = TRUE;
1630 wtap_dump_close(pdh, &close_err);
1632 if (got_read_error) {
1634 * Find the file on which we got the error, and report the error.
1636 for (i = 0; i < in_file_count; i++) {
1637 if (in_files[i].state == GOT_ERROR) {
1638 /* Put up a message box noting that a read failed somewhere along
1642 case WTAP_ERR_UNSUPPORTED_ENCAP:
1643 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1644 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1647 errmsg = errmsg_errno;
1650 case WTAP_ERR_CANT_READ:
1651 errmsg = "An attempt to read from the capture file %s failed for"
1652 " some unknown reason.";
1655 case WTAP_ERR_SHORT_READ:
1656 errmsg = "The capture file %s appears to have been cut short"
1657 " in the middle of a packet.";
1660 case WTAP_ERR_BAD_RECORD:
1661 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1662 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1665 errmsg = errmsg_errno;
1669 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1670 "An error occurred while reading the"
1671 " capture file %%s: %s.", wtap_strerror(read_err));
1672 errmsg = errmsg_errno;
1675 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1680 if (got_write_error) {
1681 /* Put up an alert box for the write error. */
1682 cf_write_failure_alert_box(out_filename, write_err);
1685 if (got_read_error || got_write_error || stop_flag) {
1686 /* Callers aren't expected to treat an error or an explicit abort
1687 differently - we put up error dialogs ourselves, so they don't
1695 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1697 const char *filter_new = dftext ? dftext : "";
1698 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1701 /* if new filter equals old one, do nothing unless told to do so */
1702 if (!force && strcmp(filter_new, filter_old) == 0) {
1708 if (dftext == NULL) {
1709 /* The new filter is an empty filter (i.e., display all packets).
1710 * so leave dfcode==NULL
1714 * We have a filter; make a copy of it (as we'll be saving it),
1715 * and try to compile it.
1717 dftext = g_strdup(dftext);
1718 if (!dfilter_compile(dftext, &dfcode)) {
1719 /* The attempt failed; report an error. */
1720 gchar *safe_dftext = simple_dialog_format_message(dftext);
1721 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1723 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1726 "The following display filter isn't a valid display filter:\n%s\n"
1727 "See the help for a description of the display filter syntax.",
1728 simple_dialog_primary_start(), safe_dfilter_error_msg,
1729 simple_dialog_primary_end(), safe_dftext);
1730 g_free(safe_dfilter_error_msg);
1731 g_free(safe_dftext);
1737 if (dfcode == NULL) {
1738 /* Yes - free the filter text, and set it to null. */
1744 /* We have a valid filter. Replace the current filter. */
1745 g_free(cf->dfilter);
1746 cf->dfilter = dftext;
1748 /* Now rescan the packet list, applying the new filter, but not
1749 throwing away information constructed on a previous pass. */
1750 if (dftext == NULL) {
1751 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1753 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1756 /* Cleanup and release all dfilter resources */
1757 if (dfcode != NULL){
1758 dfilter_free(dfcode);
1764 cf_colorize_packets(capture_file *cf)
1766 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1770 cf_reftime_packets(capture_file *cf)
1773 #ifdef NEW_PACKET_LIST
1774 ref_time_packets(cf);
1776 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1781 cf_redissect_packets(capture_file *cf)
1783 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1786 /* Rescan the list of packets, reconstructing the CList.
1788 "action" describes why we're doing this; it's used in the progress
1791 "action_item" describes what we're doing; it's used in the progress
1794 "refilter" is TRUE if we need to re-evaluate the filter expression.
1796 "redissect" is TRUE if we need to make the dissectors reconstruct
1797 any state information they have (because a preference that affects
1798 some dissector has changed, meaning some dissector might construct
1799 its state differently from the way it was constructed the last time). */
1801 /* Rescan packets with "old" packet list */
1802 #ifndef NEW_PACKET_LIST
1804 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1805 gboolean refilter, gboolean redissect)
1808 progdlg_t *progbar = NULL;
1813 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1814 int selected_row, prev_row, preceding_row, following_row;
1815 gboolean selected_frame_seen;
1818 GTimeVal start_time;
1819 gchar status_str[100];
1820 int progbar_nextstep;
1821 int progbar_quantum;
1823 gboolean filtering_tap_listeners;
1825 gboolean add_to_packet_list = TRUE;
1828 /* Compile the current display filter.
1829 * We assume this will not fail since cf->dfilter is only set in
1830 * cf_filter IFF the filter was valid.
1832 compiled = dfilter_compile(cf->dfilter, &dfcode);
1833 g_assert(!cf->dfilter || (compiled && dfcode));
1835 /* Do we have any tap listeners with filters? */
1836 filtering_tap_listeners = have_filtering_tap_listeners();
1838 /* Get the union of the flags for all tap listeners. */
1839 tap_flags = union_of_tap_listener_flags();
1842 reset_tap_listeners();
1843 /* Which frame, if any, is the currently selected frame?
1844 XXX - should the selected frame or the focus frame be the "current"
1845 frame, that frame being the one from which "Find Frame" searches
1847 selected_frame = cf->current_frame;
1849 /* We don't yet know what row that frame will be on, if any, after we
1850 rebuild the clist, however. */
1853 /* Freeze the packet list while we redo it, so we don't get any
1854 screen updates while it happens. */
1855 packet_list_freeze();
1858 packet_list_clear();
1861 /* We need to re-initialize all the state information that protocols
1862 keep, because some preference that controls a dissector has changed,
1863 which might cause the state information to be constructed differently
1864 by that dissector. */
1866 /* We might receive new packets while redissecting, and we don't
1867 want to dissect those before their time. */
1868 cf->redissecting = TRUE;
1870 /* Cleanup all data structures used for dissection. */
1871 cleanup_dissection();
1872 /* Initialize all data structures used for dissection. */
1877 /* We don't yet know which will be the first and last frames displayed. */
1878 cf->first_displayed = NULL;
1879 cf->last_displayed = NULL;
1883 /* We currently don't display any packets */
1884 cf->displayed_count = 0;
1886 /* Iterate through the list of frames. Call a routine for each frame
1887 to check whether it should be displayed and, if so, add it to
1888 the display list. */
1889 nstime_set_unset(&first_ts);
1890 nstime_set_unset(&prev_dis_ts);
1892 /* Update the progress bar when it gets to this value. */
1893 progbar_nextstep = 0;
1894 /* When we reach the value that triggers a progress bar update,
1895 bump that value by this amount. */
1896 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1897 /* Count of packets at which we've looked. */
1899 /* Progress so far. */
1903 g_get_current_time(&start_time);
1905 row = -1; /* no previous row yet */
1910 preceding_frame = NULL;
1912 following_frame = NULL;
1914 selected_frame_seen = FALSE;
1916 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1917 /* Create the progress bar if necessary.
1918 We check on every iteration of the loop, so that it takes no
1919 longer than the standard time to create it (otherwise, for a
1920 large file, we might take considerably longer than that standard
1921 time in order to get to the next progress bar step). */
1922 if (progbar == NULL)
1923 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1924 &stop_flag, &start_time,
1927 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1928 when we update it, we have to run the GTK+ main loop to get it
1929 to repaint what's pending, and doing so may involve an "ioctl()"
1930 to see if there's any pending input from an X server, and doing
1931 that for every packet can be costly, especially on a big file. */
1932 if (count >= progbar_nextstep) {
1933 /* let's not divide by zero. I should never be started
1934 * with count == 0, so let's assert that
1936 g_assert(cf->count > 0);
1937 progbar_val = (gfloat) count / cf->count;
1939 if (progbar != NULL) {
1940 g_snprintf(status_str, sizeof(status_str),
1941 "%4u of %u frames", count, cf->count);
1942 update_progress_dlg(progbar, progbar_val, status_str);
1945 progbar_nextstep += progbar_quantum;
1949 /* Well, the user decided to abort the filtering. Just stop.
1951 XXX - go back to the previous filter? Users probably just
1952 want not to wait for a filtering operation to finish;
1953 unless we cancel by having no filter, reverting to the
1954 previous filter will probably be even more expensive than
1955 continuing the filtering, as it involves going back to the
1956 beginning and filtering, and even with no filter we currently
1957 have to re-generate the entire clist, which is also expensive.
1959 I'm not sure what Network Monitor does, but it doesn't appear
1960 to give you an unfiltered display if you cancel. */
1967 /* Since all state for the frame was destroyed, mark the frame
1968 * as not visited, free the GSList referring to the state
1969 * data (the per-frame data itself was freed by
1970 * "init_dissection()"), and null out the GSList pointer.
1972 fdata->flags.visited = 0;
1973 frame_data_cleanup(fdata);
1976 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1977 cf->pd, fdata->cap_len, &err, &err_info)) {
1978 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1979 cf_read_error_message(err, err_info), cf->filename);
1983 /* If the previous frame is displayed, and we haven't yet seen the
1984 selected frame, remember that frame - it's the closest one we've
1985 yet seen before the selected frame. */
1986 if (prev_row != -1 && !selected_frame_seen) {
1987 preceding_row = prev_row;
1988 preceding_frame = prev_frame;
1990 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1991 tap_flags, &cf->pseudo_header, cf->pd,
1993 add_to_packet_list);
1995 /* If this frame is displayed, and this is the first frame we've
1996 seen displayed after the selected frame, remember this frame -
1997 it's the closest one we've yet seen at or after the selected
1999 if (row != -1 && selected_frame_seen && following_row == -1) {
2000 following_row = row;
2001 following_frame = fdata;
2003 if (fdata == selected_frame) {
2005 selected_frame_seen = TRUE;
2008 /* Remember this row/frame - it'll be the previous row/frame
2009 on the next pass through the loop. */
2014 /* We are done redissecting the packet list. */
2015 cf->redissecting = FALSE;
2018 /* Clear out what remains of the visited flags and per-frame data
2021 XXX - that may cause various forms of bogosity when dissecting
2022 these frames, as they won't have been seen by this sequential
2023 pass, but the only alternative I see is to keep scanning them
2024 even though the user requested that the scan stop, and that
2025 would leave the user stuck with an Wireshark grinding on
2026 until it finishes. Should we just stick them with that? */
2027 for (; fdata != NULL; fdata = fdata->next) {
2028 fdata->flags.visited = 0;
2029 frame_data_cleanup(fdata);
2033 /* We're done filtering the packets; destroy the progress bar if it
2035 if (progbar != NULL)
2036 destroy_progress_dlg(progbar);
2038 /* Unfreeze the packet list. */
2041 if (selected_row == -1) {
2042 /* The selected frame didn't pass the filter. */
2043 if (selected_frame == NULL) {
2044 /* That's because there *was* no selected frame. Make the first
2045 displayed frame the current frame. */
2048 /* Find the nearest displayed frame to the selected frame (whether
2049 it's before or after that frame) and make that the current frame.
2050 If the next and previous displayed frames are equidistant from the
2051 selected frame, choose the next one. */
2052 g_assert(following_frame == NULL ||
2053 following_frame->num >= selected_frame->num);
2054 g_assert(preceding_frame == NULL ||
2055 preceding_frame->num <= selected_frame->num);
2056 if (following_frame == NULL) {
2057 /* No frame after the selected frame passed the filter, so we
2058 have to select the last displayed frame before the selected
2060 selected_row = preceding_row;
2061 } else if (preceding_frame == NULL) {
2062 /* No frame before the selected frame passed the filter, so we
2063 have to select the first displayed frame after the selected
2065 selected_row = following_row;
2067 /* Frames before and after the selected frame passed the filter, so
2068 we'll select the previous frame */
2069 selected_row = preceding_row;
2074 if (selected_row == -1) {
2075 /* There are no frames displayed at all. */
2076 cf_unselect_packet(cf);
2078 /* Either the frame that was selected passed the filter, or we've
2079 found the nearest displayed frame to that frame. Select it, make
2080 it the focus row, and make it visible. */
2081 if (selected_row == 0) {
2082 /* Set to invalid to force update of packet list and packet details */
2083 cf->current_row = -1;
2085 packet_list_set_selected_row(selected_row);
2088 /* Cleanup and release all dfilter resources */
2089 if (dfcode != NULL){
2090 dfilter_free(dfcode);
2097 rescan_packets(capture_file *cf, const char *action, const char *action_item,
2098 gboolean refilter, gboolean redissect)
2100 /* Rescan packets new packet list */
2102 progdlg_t *progbar = NULL;
2107 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
2108 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
2109 gboolean selected_frame_seen;
2112 GTimeVal start_time;
2113 gchar status_str[100];
2114 int progbar_nextstep;
2115 int progbar_quantum;
2117 gboolean filtering_tap_listeners;
2119 gboolean add_to_packet_list = FALSE;
2122 /* Compile the current display filter.
2123 * We assume this will not fail since cf->dfilter is only set in
2124 * cf_filter IFF the filter was valid.
2126 compiled = dfilter_compile(cf->dfilter, &dfcode);
2127 g_assert(!cf->dfilter || (compiled && dfcode));
2129 /* Do we have any tap listeners with filters? */
2130 filtering_tap_listeners = have_filtering_tap_listeners();
2132 /* Get the union of the flags for all tap listeners. */
2133 tap_flags = union_of_tap_listener_flags();
2136 reset_tap_listeners();
2137 /* Which frame, if any, is the currently selected frame?
2138 XXX - should the selected frame or the focus frame be the "current"
2139 frame, that frame being the one from which "Find Frame" searches
2141 selected_frame = cf->current_frame;
2143 /* Mark frane num as not found */
2144 selected_frame_num = -1;
2146 /* Freeze the packet list while we redo it, so we don't get any
2147 screen updates while it happens. */
2148 new_packet_list_freeze();
2151 /* We need to re-initialize all the state information that protocols
2152 keep, because some preference that controls a dissector has changed,
2153 which might cause the state information to be constructed differently
2154 by that dissector. */
2156 /* We might receive new packets while redissecting, and we don't
2157 want to dissect those before their time. */
2158 cf->redissecting = TRUE;
2160 /* Cleanup all data structures used for dissection. */
2161 cleanup_dissection();
2162 /* Initialize all data structures used for dissection. */
2165 /* We need to redissect the packets so we have to discard our old
2166 * packet list store. */
2167 new_packet_list_clear();
2168 add_to_packet_list = TRUE;
2171 /* We don't yet know which will be the first and last frames displayed. */
2172 cf->first_displayed = NULL;
2173 cf->last_displayed = NULL;
2177 /* We currently don't display any packets */
2178 cf->displayed_count = 0;
2180 /* Iterate through the list of frames. Call a routine for each frame
2181 to check whether it should be displayed and, if so, add it to
2182 the display list. */
2183 nstime_set_unset(&first_ts);
2184 nstime_set_unset(&prev_dis_ts);
2186 /* Update the progress bar when it gets to this value. */
2187 progbar_nextstep = 0;
2188 /* When we reach the value that triggers a progress bar update,
2189 bump that value by this amount. */
2190 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2191 /* Count of packets at which we've looked. */
2193 /* Progress so far. */
2197 g_get_current_time(&start_time);
2199 /* no previous row yet */
2201 prev_frame_num = -1;
2204 preceding_frame_num = -1;
2205 preceding_frame = NULL;
2206 following_frame_num = -1;
2207 following_frame = NULL;
2209 selected_frame_seen = FALSE;
2211 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2212 /* Create the progress bar if necessary.
2213 We check on every iteration of the loop, so that it takes no
2214 longer than the standard time to create it (otherwise, for a
2215 large file, we might take considerably longer than that standard
2216 time in order to get to the next progress bar step). */
2217 if (progbar == NULL)
2218 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2219 &stop_flag, &start_time,
2222 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2223 when we update it, we have to run the GTK+ main loop to get it
2224 to repaint what's pending, and doing so may involve an "ioctl()"
2225 to see if there's any pending input from an X server, and doing
2226 that for every packet can be costly, especially on a big file. */
2227 if (count >= progbar_nextstep) {
2228 /* let's not divide by zero. I should never be started
2229 * with count == 0, so let's assert that
2231 g_assert(cf->count > 0);
2232 progbar_val = (gfloat) count / cf->count;
2234 if (progbar != NULL) {
2235 g_snprintf(status_str, sizeof(status_str),
2236 "%4u of %u frames", count, cf->count);
2237 update_progress_dlg(progbar, progbar_val, status_str);
2240 progbar_nextstep += progbar_quantum;
2244 /* Well, the user decided to abort the filtering. Just stop.
2246 XXX - go back to the previous filter? Users probably just
2247 want not to wait for a filtering operation to finish;
2248 unless we cancel by having no filter, reverting to the
2249 previous filter will probably be even more expensive than
2250 continuing the filtering, as it involves going back to the
2251 beginning and filtering, and even with no filter we currently
2252 have to re-generate the entire clist, which is also expensive.
2254 I'm not sure what Network Monitor does, but it doesn't appear
2255 to give you an unfiltered display if you cancel. */
2262 /* Since all state for the frame was destroyed, mark the frame
2263 * as not visited, free the GSList referring to the state
2264 * data (the per-frame data itself was freed by
2265 * "init_dissection()"), and null out the GSList pointer. */
2266 fdata->flags.visited = 0;
2267 frame_data_cleanup(fdata);
2269 /* cleanup_dissection() calls se_free_all();
2270 * And after that fdata->col_text (which is allocated using se_alloc0())
2271 * no longer points to valid memory.
2273 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
2274 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
2277 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2278 cf->pd, fdata->cap_len, &err, &err_info)) {
2279 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2280 cf_read_error_message(err, err_info), cf->filename);
2284 /* If the previous frame is displayed, and we haven't yet seen the
2285 selected frame, remember that frame - it's the closest one we've
2286 yet seen before the selected frame. */
2287 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
2288 preceding_frame_num = prev_frame_num;
2289 preceding_frame = prev_frame;
2291 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2292 tap_flags, &cf->pseudo_header, cf->pd,
2294 add_to_packet_list);
2296 /* If this frame is displayed, and this is the first frame we've
2297 seen displayed after the selected frame, remember this frame -
2298 it's the closest one we've yet seen at or after the selected
2300 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2301 following_frame_num = fdata->num;
2302 following_frame = fdata;
2304 if (fdata == selected_frame) {
2305 selected_frame_seen = TRUE;
2306 if (fdata->flags.passed_dfilter)
2307 selected_frame_num = fdata->num;
2310 /* Remember this frame - it'll be the previous frame
2311 on the next pass through the loop. */
2312 prev_frame_num = fdata->num;
2316 /* We are done redissecting the packet list. */
2317 cf->redissecting = FALSE;
2320 /* Clear out what remains of the visited flags and per-frame data
2323 XXX - that may cause various forms of bogosity when dissecting
2324 these frames, as they won't have been seen by this sequential
2325 pass, but the only alternative I see is to keep scanning them
2326 even though the user requested that the scan stop, and that
2327 would leave the user stuck with an Wireshark grinding on
2328 until it finishes. Should we just stick them with that? */
2329 for (; fdata != NULL; fdata = fdata->next) {
2330 fdata->flags.visited = 0;
2331 frame_data_cleanup(fdata);
2335 /* We're done filtering the packets; destroy the progress bar if it
2337 if (progbar != NULL)
2338 destroy_progress_dlg(progbar);
2340 /* Unfreeze the packet list. */
2341 if (!add_to_packet_list)
2342 new_packet_list_recreate_visible_rows();
2344 new_packet_list_thaw();
2346 if (selected_frame_num == -1) {
2347 /* The selected frame didn't pass the filter. */
2348 if (selected_frame == NULL) {
2349 /* That's because there *was* no selected frame. Make the first
2350 displayed frame the current frame. */
2351 selected_frame_num = 0;
2353 /* Find the nearest displayed frame to the selected frame (whether
2354 it's before or after that frame) and make that the current frame.
2355 If the next and previous displayed frames are equidistant from the
2356 selected frame, choose the next one. */
2357 g_assert(following_frame == NULL ||
2358 following_frame->num >= selected_frame->num);
2359 g_assert(preceding_frame == NULL ||
2360 preceding_frame->num <= selected_frame->num);
2361 if (following_frame == NULL) {
2362 /* No frame after the selected frame passed the filter, so we
2363 have to select the last displayed frame before the selected
2365 selected_frame_num = preceding_frame_num;
2366 selected_frame = preceding_frame;
2367 } else if (preceding_frame == NULL) {
2368 /* No frame before the selected frame passed the filter, so we
2369 have to select the first displayed frame after the selected
2371 selected_frame_num = following_frame_num;
2372 selected_frame = following_frame;
2374 /* Frames before and after the selected frame passed the filter, so
2375 we'll select the previous frame */
2376 selected_frame_num = preceding_frame_num;
2377 selected_frame = preceding_frame;
2382 if (selected_frame_num == -1) {
2383 /* There are no frames displayed at all. */
2384 cf_unselect_packet(cf);
2386 /* Either the frame that was selected passed the filter, or we've
2387 found the nearest displayed frame to that frame. Select it, make
2388 it the focus row, and make it visible. */
2389 if (selected_frame_num == 0) {
2390 new_packet_list_select_first_row();
2392 new_packet_list_find_row_from_data(selected_frame, TRUE);
2396 /* Cleanup and release all dfilter resources */
2397 if (dfcode != NULL){
2398 dfilter_free(dfcode);
2401 #endif /* NEW_PACKET_LIST */
2404 * Scan trough all frame data and recalculate the ref time
2405 * without rereading the file.
2406 * XXX - do we need a progres bar or is this fast enough?
2408 #ifdef NEW_PACKET_LIST
2410 ref_time_packets(capture_file *cf)
2416 nstime_set_unset(&first_ts);
2417 nstime_set_unset(&prev_dis_ts);
2420 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2422 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2423 /* just add some value here until we know if it is being displayed or not */
2424 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2426 /* If we don't have the time stamp of the first packet in the
2427 capture, it's because this is the first packet. Save the time
2428 stamp of this packet as the time stamp of the first packet. */
2429 if (nstime_is_unset(&first_ts)) {
2430 first_ts = fdata->abs_ts;
2432 /* if this frames is marked as a reference time frame, reset
2433 firstsec and firstusec to this frame */
2434 if(fdata->flags.ref_time){
2435 first_ts = fdata->abs_ts;
2438 /* If we don't have the time stamp of the previous displayed packet,
2439 it's because this is the first displayed packet. Save the time
2440 stamp of this packet as the time stamp of the previous displayed
2442 if (nstime_is_unset(&prev_dis_ts)) {
2443 prev_dis_ts = fdata->abs_ts;
2446 /* Get the time elapsed between the first packet and this packet. */
2447 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2449 /* If it's greater than the current elapsed time, set the elapsed time
2450 to it (we check for "greater than" so as not to be confused by
2451 time moving backwards). */
2452 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2453 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2454 cf->elapsed_time = fdata->rel_ts;
2457 /* Get the time elapsed between the previous displayed packet and
2459 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2461 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2462 /* This frame either passed the display filter list or is marked as
2463 a time reference frame. All time reference frames are displayed
2464 even if they dont pass the display filter */
2465 if(fdata->flags.ref_time){
2466 /* if this was a TIME REF frame we should reset the cul bytes field */
2467 cum_bytes = fdata->pkt_len;
2468 fdata->cum_bytes = cum_bytes;
2470 /* increase cum_bytes with this packets length */
2471 cum_bytes += fdata->pkt_len;
2484 process_specified_packets(capture_file *cf, packet_range_t *range,
2485 const char *string1, const char *string2, gboolean terminate_is_stop,
2486 gboolean (*callback)(capture_file *, frame_data *,
2487 union wtap_pseudo_header *, const guint8 *, void *),
2488 void *callback_args)
2493 union wtap_pseudo_header pseudo_header;
2494 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2495 psp_return_t ret = PSP_FINISHED;
2497 progdlg_t *progbar = NULL;
2500 gboolean progbar_stop_flag;
2501 GTimeVal progbar_start_time;
2502 gchar progbar_status_str[100];
2503 int progbar_nextstep;
2504 int progbar_quantum;
2505 range_process_e process_this;
2507 /* Update the progress bar when it gets to this value. */
2508 progbar_nextstep = 0;
2509 /* When we reach the value that triggers a progress bar update,
2510 bump that value by this amount. */
2511 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2512 /* Count of packets at which we've looked. */
2514 /* Progress so far. */
2517 progbar_stop_flag = FALSE;
2518 g_get_current_time(&progbar_start_time);
2520 packet_range_process_init(range);
2522 /* Iterate through the list of packets, printing the packets that
2523 were selected by the current display filter. */
2524 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2525 /* Create the progress bar if necessary.
2526 We check on every iteration of the loop, so that it takes no
2527 longer than the standard time to create it (otherwise, for a
2528 large file, we might take considerably longer than that standard
2529 time in order to get to the next progress bar step). */
2530 if (progbar == NULL)
2531 progbar = delayed_create_progress_dlg(string1, string2,
2534 &progbar_start_time,
2537 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2538 when we update it, we have to run the GTK+ main loop to get it
2539 to repaint what's pending, and doing so may involve an "ioctl()"
2540 to see if there's any pending input from an X server, and doing
2541 that for every packet can be costly, especially on a big file. */
2542 if (progbar_count >= progbar_nextstep) {
2543 /* let's not divide by zero. I should never be started
2544 * with count == 0, so let's assert that
2546 g_assert(cf->count > 0);
2547 progbar_val = (gfloat) progbar_count / cf->count;
2549 if (progbar != NULL) {
2550 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2551 "%4u of %u packets", progbar_count, cf->count);
2552 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2555 progbar_nextstep += progbar_quantum;
2558 if (progbar_stop_flag) {
2559 /* Well, the user decided to abort the operation. Just stop,
2560 and arrange to return PSP_STOPPED to our caller, so they know
2561 it was stopped explicitly. */
2568 /* do we have to process this packet? */
2569 process_this = packet_range_process_packet(range, fdata);
2570 if (process_this == range_process_next) {
2571 /* this packet uninteresting, continue with next one */
2573 } else if (process_this == range_processing_finished) {
2574 /* all interesting packets processed, stop the loop */
2578 /* Get the packet */
2579 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2580 pd, fdata->cap_len, &err, &err_info)) {
2581 /* Attempt to get the packet failed. */
2582 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2583 cf_read_error_message(err, err_info), cf->filename);
2587 /* Process the packet */
2588 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2589 /* Callback failed. We assume it reported the error appropriately. */
2595 /* We're done printing the packets; destroy the progress bar if
2597 if (progbar != NULL)
2598 destroy_progress_dlg(progbar);
2604 gboolean construct_protocol_tree;
2606 } retap_callback_args_t;
2609 retap_packet(capture_file *cf _U_, frame_data *fdata,
2610 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2613 retap_callback_args_t *args = argsp;
2616 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2617 tap_queue_init(&edt);
2618 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2619 tap_push_tapped_queue(&edt);
2620 epan_dissect_cleanup(&edt);
2626 cf_retap_packets(capture_file *cf)
2628 packet_range_t range;
2629 retap_callback_args_t callback_args;
2630 gboolean filtering_tap_listeners;
2633 /* Do we have any tap listeners with filters? */
2634 filtering_tap_listeners = have_filtering_tap_listeners();
2636 tap_flags = union_of_tap_listener_flags();
2638 /* If any tap listeners have filters, or require the protocol tree,
2639 construct the protocol tree. */
2640 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2641 (tap_flags & TL_REQUIRES_PROTO_TREE);
2643 /* If any tap listeners require the columns, construct them. */
2644 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2646 /* Reset the tap listeners. */
2647 reset_tap_listeners();
2649 /* Iterate through the list of packets, dissecting all packets and
2650 re-running the taps. */
2651 packet_range_init(&range);
2652 packet_range_process_init(&range);
2653 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2654 "all packets", TRUE, retap_packet,
2657 /* Completed successfully. */
2661 /* Well, the user decided to abort the refiltering.
2662 Return CF_READ_ABORTED so our caller knows they did that. */
2663 return CF_READ_ABORTED;
2666 /* Error while retapping. */
2667 return CF_READ_ERROR;
2670 g_assert_not_reached();
2675 print_args_t *print_args;
2676 gboolean print_header_line;
2677 char *header_line_buf;
2678 int header_line_buf_len;
2679 gboolean print_formfeed;
2680 gboolean print_separator;
2684 } print_callback_args_t;
2687 print_packet(capture_file *cf, frame_data *fdata,
2688 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2691 print_callback_args_t *args = argsp;
2698 gboolean proto_tree_needed;
2699 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2700 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2702 /* Create the protocol tree, and make it visible, if we're printing
2703 the dissection or the hex data.
2704 XXX - do we need it if we're just printing the hex data? */
2706 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2707 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2709 /* Fill in the column information if we're printing the summary
2711 if (args->print_args->print_summary) {
2712 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2713 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2715 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2717 if (args->print_formfeed) {
2718 if (!new_page(args->print_args->stream))
2721 if (args->print_separator) {
2722 if (!print_line(args->print_args->stream, 0, ""))
2728 * We generate bookmarks, if the output format supports them.
2729 * The name is "__frameN__".
2731 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2733 if (args->print_args->print_summary) {
2734 if (args->print_header_line) {
2735 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2737 args->print_header_line = FALSE; /* we might not need to print any more */
2739 cp = &args->line_buf[0];
2741 for (i = 0; i < cf->cinfo.num_cols; i++) {
2742 /* Find the length of the string for this column. */
2743 column_len = (int) strlen(cf->cinfo.col_data[i]);
2744 if (args->col_widths[i] > column_len)
2745 column_len = args->col_widths[i];
2747 /* Make sure there's room in the line buffer for the column; if not,
2748 double its length. */
2749 line_len += column_len + 1; /* "+1" for space */
2750 if (line_len > args->line_buf_len) {
2751 cp_off = (int) (cp - args->line_buf);
2752 args->line_buf_len = 2 * line_len;
2753 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2754 cp = args->line_buf + cp_off;
2757 /* Right-justify the packet number column. */
2758 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2759 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2761 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2763 if (i != cf->cinfo.num_cols - 1)
2769 * Generate a bookmark, using the summary line as the title.
2771 if (!print_bookmark(args->print_args->stream, bookmark_name,
2775 if (!print_line(args->print_args->stream, 0, args->line_buf))
2779 * Generate a bookmark, using "Frame N" as the title, as we're not
2780 * printing the summary line.
2782 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2783 if (!print_bookmark(args->print_args->stream, bookmark_name,
2786 } /* if (print_summary) */
2788 if (args->print_args->print_dissections != print_dissections_none) {
2789 if (args->print_args->print_summary) {
2790 /* Separate the summary line from the tree with a blank line. */
2791 if (!print_line(args->print_args->stream, 0, ""))
2795 /* Print the information in that tree. */
2796 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2799 /* Print a blank line if we print anything after this (aka more than one packet). */
2800 args->print_separator = TRUE;
2802 /* Print a header line if we print any more packet summaries */
2803 args->print_header_line = TRUE;
2806 if (args->print_args->print_hex) {
2807 /* Print the full packet data as hex. */
2808 if (!print_hex_data(args->print_args->stream, &edt))
2811 /* Print a blank line if we print anything after this (aka more than one packet). */
2812 args->print_separator = TRUE;
2814 /* Print a header line if we print any more packet summaries */
2815 args->print_header_line = TRUE;
2816 } /* if (args->print_args->print_dissections != print_dissections_none) */
2818 epan_dissect_cleanup(&edt);
2820 /* do we want to have a formfeed between each packet from now on? */
2821 if(args->print_args->print_formfeed) {
2822 args->print_formfeed = TRUE;
2828 epan_dissect_cleanup(&edt);
2833 cf_print_packets(capture_file *cf, print_args_t *print_args)
2836 print_callback_args_t callback_args;
2844 callback_args.print_args = print_args;
2845 callback_args.print_header_line = TRUE;
2846 callback_args.header_line_buf = NULL;
2847 callback_args.header_line_buf_len = 256;
2848 callback_args.print_formfeed = FALSE;
2849 callback_args.print_separator = FALSE;
2850 callback_args.line_buf = NULL;
2851 callback_args.line_buf_len = 256;
2852 callback_args.col_widths = NULL;
2854 if (!print_preamble(print_args->stream, cf->filename)) {
2855 destroy_print_stream(print_args->stream);
2856 return CF_PRINT_WRITE_ERROR;
2859 if (print_args->print_summary) {
2860 /* We're printing packet summaries. Allocate the header line buffer
2861 and get the column widths. */
2862 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2864 /* Find the widths for each of the columns - maximum of the
2865 width of the title and the width of the data - and construct
2866 a buffer with a line containing the column titles. */
2867 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2868 cp = &callback_args.header_line_buf[0];
2870 for (i = 0; i < cf->cinfo.num_cols; i++) {
2871 /* Don't pad the last column. */
2872 if (i == cf->cinfo.num_cols - 1)
2873 callback_args.col_widths[i] = 0;
2875 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2876 data_width = get_column_char_width(get_column_format(i));
2877 if (data_width > callback_args.col_widths[i])
2878 callback_args.col_widths[i] = data_width;
2881 /* Find the length of the string for this column. */
2882 column_len = (int) strlen(cf->cinfo.col_title[i]);
2883 if (callback_args.col_widths[i] > column_len)
2884 column_len = callback_args.col_widths[i];
2886 /* Make sure there's room in the line buffer for the column; if not,
2887 double its length. */
2888 line_len += column_len + 1; /* "+1" for space */
2889 if (line_len > callback_args.header_line_buf_len) {
2890 cp_off = (int) (cp - callback_args.header_line_buf);
2891 callback_args.header_line_buf_len = 2 * line_len;
2892 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2893 callback_args.header_line_buf_len + 1);
2894 cp = callback_args.header_line_buf + cp_off;
2897 /* Right-justify the packet number column. */
2898 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2899 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2901 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2903 if (i != cf->cinfo.num_cols - 1)
2908 /* Now start out the main line buffer with the same length as the
2909 header line buffer. */
2910 callback_args.line_buf_len = callback_args.header_line_buf_len;
2911 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2912 } /* if (print_summary) */
2914 /* Iterate through the list of packets, printing the packets we were
2916 ret = process_specified_packets(cf, &print_args->range, "Printing",
2917 "selected packets", TRUE, print_packet,
2920 g_free(callback_args.header_line_buf);
2921 g_free(callback_args.line_buf);
2922 g_free(callback_args.col_widths);
2927 /* Completed successfully. */
2931 /* Well, the user decided to abort the printing.
2933 XXX - note that what got generated before they did that
2934 will get printed if we're piping to a print program; we'd
2935 have to write to a file and then hand that to the print
2936 program to make it actually not print anything. */
2940 /* Error while printing.
2942 XXX - note that what got generated before they did that
2943 will get printed if we're piping to a print program; we'd
2944 have to write to a file and then hand that to the print
2945 program to make it actually not print anything. */
2946 destroy_print_stream(print_args->stream);
2947 return CF_PRINT_WRITE_ERROR;
2950 if (!print_finale(print_args->stream)) {
2951 destroy_print_stream(print_args->stream);
2952 return CF_PRINT_WRITE_ERROR;
2955 if (!destroy_print_stream(print_args->stream))
2956 return CF_PRINT_WRITE_ERROR;
2962 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2963 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2969 /* Create the protocol tree, but don't fill in the column information. */
2970 epan_dissect_init(&edt, TRUE, TRUE);
2971 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2973 /* Write out the information in that tree. */
2974 proto_tree_write_pdml(&edt, fh);
2976 epan_dissect_cleanup(&edt);
2982 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2987 fh = ws_fopen(print_args->file, "w");
2989 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2991 write_pdml_preamble(fh);
2994 return CF_PRINT_WRITE_ERROR;
2997 /* Iterate through the list of packets, printing the packets we were
2999 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
3000 "selected packets", TRUE,
3001 write_pdml_packet, fh);
3006 /* Completed successfully. */
3010 /* Well, the user decided to abort the printing. */
3014 /* Error while printing. */
3016 return CF_PRINT_WRITE_ERROR;
3019 write_pdml_finale(fh);
3022 return CF_PRINT_WRITE_ERROR;
3025 /* XXX - check for an error */
3032 write_psml_packet(capture_file *cf, frame_data *fdata,
3033 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3038 gboolean proto_tree_needed;
3040 /* Fill in the column information, only create the protocol tree
3041 if having custom columns. */
3042 proto_tree_needed = have_custom_cols(&cf->cinfo);
3043 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3044 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3045 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3047 /* Write out the information in that tree. */
3048 proto_tree_write_psml(&edt, fh);
3050 epan_dissect_cleanup(&edt);
3056 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
3061 fh = ws_fopen(print_args->file, "w");
3063 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3065 write_psml_preamble(fh);
3068 return CF_PRINT_WRITE_ERROR;
3071 /* Iterate through the list of packets, printing the packets we were
3073 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
3074 "selected packets", TRUE,
3075 write_psml_packet, fh);
3080 /* Completed successfully. */
3084 /* Well, the user decided to abort the printing. */
3088 /* Error while printing. */
3090 return CF_PRINT_WRITE_ERROR;
3093 write_psml_finale(fh);
3096 return CF_PRINT_WRITE_ERROR;
3099 /* XXX - check for an error */
3106 write_csv_packet(capture_file *cf, frame_data *fdata,
3107 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3112 gboolean proto_tree_needed;
3114 /* Fill in the column information, only create the protocol tree
3115 if having custom columns. */
3116 proto_tree_needed = have_custom_cols(&cf->cinfo);
3117 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3118 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3119 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3121 /* Write out the information in that tree. */
3122 proto_tree_write_csv(&edt, fh);
3124 epan_dissect_cleanup(&edt);
3130 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3135 fh = ws_fopen(print_args->file, "w");
3137 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3139 write_csv_preamble(fh);
3142 return CF_PRINT_WRITE_ERROR;
3145 /* Iterate through the list of packets, printing the packets we were
3147 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3148 "selected packets", TRUE,
3149 write_csv_packet, fh);
3154 /* Completed successfully. */
3158 /* Well, the user decided to abort the printing. */
3162 /* Error while printing. */
3164 return CF_PRINT_WRITE_ERROR;
3167 write_csv_finale(fh);
3170 return CF_PRINT_WRITE_ERROR;
3173 /* XXX - check for an error */
3180 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3181 union wtap_pseudo_header *pseudo_header _U_,
3182 const guint8 *pd, void *argsp)
3186 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3191 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3196 fh = ws_fopen(print_args->file, "w");
3199 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3201 write_carrays_preamble(fh);
3205 return CF_PRINT_WRITE_ERROR;
3208 /* Iterate through the list of packets, printing the packets we were
3210 ret = process_specified_packets(cf, &print_args->range,
3212 "selected packets", TRUE,
3213 write_carrays_packet, fh);
3216 /* Completed successfully. */
3219 /* Well, the user decided to abort the printing. */
3222 /* Error while printing. */
3224 return CF_PRINT_WRITE_ERROR;
3227 write_carrays_finale(fh);
3231 return CF_PRINT_WRITE_ERROR;
3238 #ifndef NEW_PACKET_LIST /* This finction is not needed with the new packet list */
3240 /* Scan through the packet list and change all columns that use the
3241 "command-line-specified" time stamp format to use the current
3242 value of that format. */
3244 cf_change_time_formats(capture_file *cf)
3248 progdlg_t *progbar = NULL;
3253 GTimeVal start_time;
3254 gchar status_str[100];
3255 int progbar_nextstep;
3256 int progbar_quantum;
3257 gboolean sorted_by_frame_column;
3259 /* Adjust timestamp precision if auto is selected */
3260 cf_timestamp_auto_precision(cf);
3262 /* Are there any columns with time stamps in the "command-line-specified"
3265 XXX - we have to force the "column is writable" flag on, as it
3266 might be off from the last frame that was dissected. */
3267 col_set_writable(&cf->cinfo, TRUE);
3268 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3269 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3270 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3271 !check_col(&cf->cinfo, COL_REL_TIME) &&
3272 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3273 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3274 /* No, there aren't any columns in that format, so we have no work
3279 /* Freeze the packet list while we redo it, so we don't get any
3280 screen updates while it happens. */
3281 packet_list_freeze();
3283 /* Update the progress bar when it gets to this value. */
3284 progbar_nextstep = 0;
3285 /* When we reach the value that triggers a progress bar update,
3286 bump that value by this amount. */
3287 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3288 /* Count of packets at which we've looked. */
3290 /* Progress so far. */
3293 /* If the rows are currently sorted by the frame column then we know
3294 * the row number of each packet: it's the row number of the previously
3295 * displayed packet + 1.
3297 * Otherwise, if the display is sorted by a different column then we have
3298 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3299 * of changing the time display format O(N**2)).
3301 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3302 * the row number and walks that many elements down the clist to find
3303 * the appropriate element.)
3305 sorted_by_frame_column = FALSE;
3306 for (i = 0; i < cf->cinfo.num_cols; i++) {
3307 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3309 sorted_by_frame_column = (i == packet_list_get_sort_column());
3315 g_get_current_time(&start_time);
3317 /* Iterate through the list of packets, checking whether the packet
3318 is in a row of the summary list and, if so, whether there are
3319 any columns that show the time in the "command-line-specified"
3320 format and, if so, update that row. */
3321 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
3322 /* Create the progress bar if necessary.
3323 We check on every iteration of the loop, so that it takes no
3324 longer than the standard time to create it (otherwise, for a
3325 large file, we might take considerably longer than that standard
3326 time in order to get to the next progress bar step). */
3327 if (progbar == NULL)
3328 progbar = delayed_create_progress_dlg("Changing", "time display",
3329 TRUE, &stop_flag, &start_time, progbar_val);
3331 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3332 when we update it, we have to run the GTK+ main loop to get it
3333 to repaint what's pending, and doing so may involve an "ioctl()"
3334 to see if there's any pending input from an X server, and doing
3335 that for every packet can be costly, especially on a big file. */
3336 if (count >= progbar_nextstep) {
3337 /* let's not divide by zero. I should never be started
3338 * with count == 0, so let's assert that
3340 g_assert(cf->count > 0);
3342 progbar_val = (gfloat) count / cf->count;
3344 if (progbar != NULL) {
3345 g_snprintf(status_str, sizeof(status_str),
3346 "%4u of %u packets", count, cf->count);
3347 update_progress_dlg(progbar, progbar_val, status_str);
3350 progbar_nextstep += progbar_quantum;
3354 /* Well, the user decided to abort the redisplay. Just stop.
3356 XXX - this leaves the time field in the old format in
3357 frames we haven't yet processed. So it goes; should we
3358 simply not offer them the option of stopping? */
3364 /* Find what row this packet is in. */
3365 if (!sorted_by_frame_column) {
3366 /* This function is O(N), so we try to avoid using it... */
3367 row = packet_list_find_row_from_data(fdata);
3369 /* ...which we do by maintaining a count of packets that are
3370 being displayed (i.e., that have passed the display filter),
3371 and using the current value of that count as the row number
3372 (which is why we can only do it when the display is sorted
3373 by the frame number). */
3374 if (fdata->flags.passed_dfilter)
3381 /* This packet is in the summary list, on row "row". */
3383 for (i = 0; i < cf->cinfo.num_cols; i++) {
3384 if (col_has_time_fmt(&cf->cinfo, i)) {
3385 /* This is one of the columns that shows the time in
3386 "command-line-specified" format; update it. */
3387 cf->cinfo.col_buf[i][0] = '\0';
3388 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3389 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3395 /* We're done redisplaying the packets; destroy the progress bar if it
3397 if (progbar != NULL)
3398 destroy_progress_dlg(progbar);
3400 /* Set the column widths of those columns that show the time in
3401 "command-line-specified" format. */
3402 for (i = 0; i < cf->cinfo.num_cols; i++) {
3403 if (col_has_time_fmt(&cf->cinfo, i)) {
3404 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3408 /* Unfreeze the packet list. */
3411 #endif /* NEW_PACKET_LIST */
3418 gboolean frame_matched;
3422 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3426 mdata.string = string;
3427 mdata.string_len = strlen(string);
3428 return find_packet(cf, match_protocol_tree, &mdata);
3432 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3434 match_data *mdata = criterion;
3437 /* Construct the protocol tree, including the displayed text */
3438 epan_dissect_init(&edt, TRUE, TRUE);
3439 /* We don't need the column information */
3440 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3442 /* Iterate through all the nodes, seeing if they have text that matches. */
3444 mdata->frame_matched = FALSE;
3445 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3446 epan_dissect_cleanup(&edt);
3447 return mdata->frame_matched;
3451 match_subtree_text(proto_node *node, gpointer data)
3453 match_data *mdata = (match_data*) data;
3454 const gchar *string = mdata->string;
3455 size_t string_len = mdata->string_len;
3456 capture_file *cf = mdata->cf;
3457 field_info *fi = PNODE_FINFO(node);
3458 gchar label_str[ITEM_LABEL_LENGTH];
3465 g_assert(fi && "dissection with an invisible proto tree?");
3467 if (mdata->frame_matched) {
3468 /* We already had a match; don't bother doing any more work. */
3472 /* Don't match invisible entries. */
3473 if (PROTO_ITEM_IS_HIDDEN(node))
3476 /* was a free format label produced? */
3478 label_ptr = fi->rep->representation;
3480 /* no, make a generic label */
3481 label_ptr = label_str;
3482 proto_item_fill_label(fi, label_str);
3485 /* Does that label match? */
3486 label_len = strlen(label_ptr);
3487 for (i = 0; i < label_len; i++) {
3488 c_char = label_ptr[i];
3490 c_char = toupper(c_char);
3491 if (c_char == string[c_match]) {
3493 if (c_match == string_len) {
3494 /* No need to look further; we have a match */
3495 mdata->frame_matched = TRUE;
3502 /* Recurse into the subtree, if it exists */
3503 if (node->first_child != NULL)
3504 proto_tree_children_foreach(node, match_subtree_text, mdata);
3508 cf_find_packet_summary_line(capture_file *cf, const char *string)
3512 mdata.string = string;
3513 mdata.string_len = strlen(string);
3514 return find_packet(cf, match_summary_line, &mdata);
3518 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3520 match_data *mdata = criterion;
3521 const gchar *string = mdata->string;
3522 size_t string_len = mdata->string_len;
3524 const char *info_column;
3525 size_t info_column_len;
3526 gboolean frame_matched = FALSE;
3532 /* Don't bother constructing the protocol tree */
3533 epan_dissect_init(&edt, FALSE, FALSE);
3534 /* Get the column information */
3535 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3537 /* Find the Info column */
3538 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3539 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3540 /* Found it. See if we match. */
3541 info_column = edt.pi.cinfo->col_data[colx];
3542 info_column_len = strlen(info_column);
3543 for (i = 0; i < info_column_len; i++) {
3544 c_char = info_column[i];
3546 c_char = toupper(c_char);
3547 if (c_char == string[c_match]) {
3549 if (c_match == string_len) {
3550 frame_matched = TRUE;
3559 epan_dissect_cleanup(&edt);
3560 return frame_matched;
3566 } cbs_t; /* "Counted byte string" */
3569 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3574 info.data_len = string_size;
3576 /* String or hex search? */
3578 /* String search - what type of string? */
3579 switch (cf->scs_type) {
3581 case SCS_ASCII_AND_UNICODE:
3582 return find_packet(cf, match_ascii_and_unicode, &info);
3585 return find_packet(cf, match_ascii, &info);
3588 return find_packet(cf, match_unicode, &info);
3591 g_assert_not_reached();
3595 return find_packet(cf, match_binary, &info);
3599 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3601 cbs_t *info = criterion;
3602 const guint8 *ascii_text = info->data;
3603 size_t textlen = info->data_len;
3604 gboolean frame_matched;
3610 frame_matched = FALSE;
3611 buf_len = fdata->pkt_len;
3612 for (i = 0; i < buf_len; i++) {
3615 c_char = toupper(c_char);
3617 if (c_char == ascii_text[c_match]) {
3619 if (c_match == textlen) {
3620 frame_matched = TRUE;
3621 cf->search_pos = i; /* Save the position of the last character
3622 for highlighting the field. */
3629 return frame_matched;
3633 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3635 cbs_t *info = criterion;
3636 const guint8 *ascii_text = info->data;
3637 size_t textlen = info->data_len;
3638 gboolean frame_matched;
3644 frame_matched = FALSE;
3645 buf_len = fdata->pkt_len;
3646 for (i = 0; i < buf_len; i++) {
3649 c_char = toupper(c_char);
3650 if (c_char == ascii_text[c_match]) {
3652 if (c_match == textlen) {
3653 frame_matched = TRUE;
3654 cf->search_pos = i; /* Save the position of the last character
3655 for highlighting the field. */
3661 return frame_matched;
3665 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3667 cbs_t *info = criterion;
3668 const guint8 *ascii_text = info->data;
3669 size_t textlen = info->data_len;
3670 gboolean frame_matched;
3676 frame_matched = FALSE;
3677 buf_len = fdata->pkt_len;
3678 for (i = 0; i < buf_len; i++) {
3681 c_char = toupper(c_char);
3682 if (c_char == ascii_text[c_match]) {
3685 if (c_match == textlen) {
3686 frame_matched = TRUE;
3687 cf->search_pos = i; /* Save the position of the last character
3688 for highlighting the field. */
3694 return frame_matched;
3698 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3700 cbs_t *info = criterion;
3701 const guint8 *binary_data = info->data;
3702 size_t datalen = info->data_len;
3703 gboolean frame_matched;
3708 frame_matched = FALSE;
3709 buf_len = fdata->pkt_len;
3710 for (i = 0; i < buf_len; i++) {
3711 if (cf->pd[i] == binary_data[c_match]) {
3713 if (c_match == datalen) {
3714 frame_matched = TRUE;
3715 cf->search_pos = i; /* Save the position of the last character
3716 for highlighting the field. */
3722 return frame_matched;
3726 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3728 return find_packet(cf, match_dfilter, sfcode);
3732 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3734 dfilter_t *sfcode = criterion;
3736 gboolean frame_matched;
3738 epan_dissect_init(&edt, TRUE, FALSE);
3739 epan_dissect_prime_dfilter(&edt, sfcode);
3740 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3741 frame_matched = dfilter_apply_edt(sfcode, &edt);
3742 epan_dissect_cleanup(&edt);
3743 return frame_matched;
3747 find_packet(capture_file *cf,
3748 gboolean (*match_function)(capture_file *, frame_data *, void *),
3751 frame_data *start_fd;
3753 frame_data *new_fd = NULL;
3754 progdlg_t *progbar = NULL;
3761 GTimeVal start_time;
3762 gchar status_str[100];
3763 int progbar_nextstep;
3764 int progbar_quantum;
3767 start_fd = cf->current_frame;
3768 if (start_fd != NULL) {
3769 /* Iterate through the list of packets, starting at the packet we've
3770 picked, calling a routine to run the filter on the packet, see if
3771 it matches, and stop if so. */
3775 /* Update the progress bar when it gets to this value. */
3776 progbar_nextstep = 0;
3777 /* When we reach the value that triggers a progress bar update,
3778 bump that value by this amount. */
3779 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3780 /* Progress so far. */
3784 g_get_current_time(&start_time);
3787 title = cf->sfilter?cf->sfilter:"";
3789 /* Create the progress bar if necessary.
3790 We check on every iteration of the loop, so that it takes no
3791 longer than the standard time to create it (otherwise, for a
3792 large file, we might take considerably longer than that standard
3793 time in order to get to the next progress bar step). */
3794 if (progbar == NULL)
3795 progbar = delayed_create_progress_dlg("Searching", title,
3796 FALSE, &stop_flag, &start_time, progbar_val);
3798 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3799 when we update it, we have to run the GTK+ main loop to get it
3800 to repaint what's pending, and doing so may involve an "ioctl()"
3801 to see if there's any pending input from an X server, and doing
3802 that for every packet can be costly, especially on a big file. */
3803 if (count >= progbar_nextstep) {
3804 /* let's not divide by zero. I should never be started
3805 * with count == 0, so let's assert that
3807 g_assert(cf->count > 0);
3809 progbar_val = (gfloat) count / cf->count;
3811 if (progbar != NULL) {
3812 g_snprintf(status_str, sizeof(status_str),
3813 "%4u of %u packets", count, cf->count);
3814 update_progress_dlg(progbar, progbar_val, status_str);
3817 progbar_nextstep += progbar_quantum;
3821 /* Well, the user decided to abort the search. Go back to the
3822 frame where we started. */
3827 /* Go past the current frame. */
3828 if (cf->sbackward) {
3829 /* Go on to the previous frame. */
3830 fdata = fdata->prev;
3831 if (fdata == NULL) {
3833 * XXX - other apps have a bit more of a detailed message
3834 * for this, and instead of offering "OK" and "Cancel",
3835 * they offer things such as "Continue" and "Cancel";
3836 * we need an API for popping up alert boxes with
3837 * {Verb} and "Cancel".
3840 if (prefs.gui_find_wrap)
3842 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3843 "%sBeginning of capture exceeded!%s\n\n"
3844 "Search is continued from the end of the capture.",
3845 simple_dialog_primary_start(), simple_dialog_primary_end());
3846 fdata = cf->plist_end; /* wrap around */
3850 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3851 "%sBeginning of capture exceeded!%s\n\n"
3852 "Try searching forwards.",
3853 simple_dialog_primary_start(), simple_dialog_primary_end());
3854 fdata = start_fd; /* stay on previous packet */
3858 /* Go on to the next frame. */
3859 fdata = fdata->next;
3860 if (fdata == NULL) {
3861 if (prefs.gui_find_wrap)
3863 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3864 "%sEnd of capture exceeded!%s\n\n"
3865 "Search is continued from the start of the capture.",
3866 simple_dialog_primary_start(), simple_dialog_primary_end());
3867 fdata = cf->plist; /* wrap around */
3871 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3872 "%sEnd of capture exceeded!%s\n\n"
3873 "Try searching backwards.",
3874 simple_dialog_primary_start(), simple_dialog_primary_end());
3875 fdata = start_fd; /* stay on previous packet */
3882 /* Is this packet in the display? */
3883 if (fdata->flags.passed_dfilter) {
3884 /* Yes. Load its data. */
3885 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3886 cf->pd, fdata->cap_len, &err, &err_info)) {
3887 /* Read error. Report the error, and go back to the frame
3888 where we started. */
3889 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3890 cf_read_error_message(err, err_info), cf->filename);
3895 /* Does it match the search criterion? */
3896 if ((*match_function)(cf, fdata, criterion)) {
3898 break; /* found it! */
3902 if (fdata == start_fd) {
3903 /* We're back to the frame we were on originally, and that frame
3904 doesn't match the search filter. The search failed. */
3909 /* We're done scanning the packets; destroy the progress bar if it
3911 if (progbar != NULL)
3912 destroy_progress_dlg(progbar);
3915 if (new_fd != NULL) {
3916 #ifdef NEW_PACKET_LIST
3917 /* Find and select */
3918 row = new_packet_list_find_row_from_data(fdata, TRUE);
3920 /* We found a frame. Find what row it's in. */
3921 row = packet_list_find_row_from_data(new_fd);
3922 #endif /* NEW_PACKET_LIST */
3924 /* We didn't find a row even though we know that a frame
3925 * exists that satifies the search criteria. This means that the
3926 * frame isn't being displayed currently so we can't select it. */
3927 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3928 "%sEnd of capture exceeded!%s\n\n"
3929 "The capture file is probably not fully loaded.",
3930 simple_dialog_primary_start(), simple_dialog_primary_end());
3934 #ifndef NEW_PACKET_LIST
3935 /* Select that row, make it the focus row, and make it visible. */
3936 packet_list_set_selected_row(row);
3937 #endif /* NEW_PACKET_LIST */
3938 return TRUE; /* success */
3940 return FALSE; /* failure */
3944 cf_goto_frame(capture_file *cf, guint fnumber)
3949 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3952 if (fdata == NULL) {
3953 /* we didn't find a packet with that packet number */
3954 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3955 "There is no packet with the packet number %u.", fnumber);
3956 return FALSE; /* we failed to go to that packet */
3958 if (!fdata->flags.passed_dfilter) {
3959 /* that packet currently isn't displayed */
3960 /* XXX - add it to the set of displayed packets? */
3961 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3962 "The packet number %u isn't currently being displayed.", fnumber);
3963 return FALSE; /* we failed to go to that packet */
3966 #ifdef NEW_PACKET_LIST
3967 row = new_packet_list_find_row_from_data(fdata, TRUE);
3969 /* We found that packet, and it's currently being displayed.
3970 Find what row it's in. */
3971 row = packet_list_find_row_from_data(fdata);
3972 g_assert(row != -1);
3974 /* Select that row, make it the focus row, and make it visible. */
3975 packet_list_set_selected_row(row);
3976 #endif /* NEW_PACKET_LIST */
3977 return TRUE; /* we got to that packet */
3981 cf_goto_top_frame(capture_file *cf _U_)
3983 #ifdef NEW_PACKET_LIST
3984 /* Find and select */
3985 new_packet_list_select_first_row();
3989 frame_data *lowest_fdata = NULL;
3991 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3992 if (fdata->flags.passed_dfilter) {
3993 lowest_fdata = fdata;
3998 if (lowest_fdata == NULL) {
4002 /* We found that packet, and it's currently being displayed.
4003 Find what row it's in. */
4004 row = packet_list_find_row_from_data(lowest_fdata);
4005 g_assert(row != -1);
4007 /* Select that row, make it the focus row, and make it visible. */
4008 packet_list_set_selected_row(row);
4009 #endif /* NEW_PACKET_LIST */
4010 return TRUE; /* we got to that packet */
4014 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
4016 #ifdef NEW_PACKET_LIST
4017 /* Find and select */
4018 new_packet_list_select_last_row();
4022 frame_data *highest_fdata = NULL;
4024 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
4025 if (fdata->flags.passed_dfilter) {
4026 highest_fdata = fdata;
4030 if (highest_fdata == NULL) {
4034 /* We found that packet, and it's currently being displayed.
4035 Find what row it's in. */
4036 row = packet_list_find_row_from_data(highest_fdata);
4037 g_assert(row != -1);
4039 /* Select that row, make it the focus row, and make it visible. */
4040 packet_list_set_selected_row(row);
4041 #endif /* NEW_PACKET_LIST */
4042 return TRUE; /* we got to that packet */
4046 * Go to frame specified by currently selected protocol tree item.
4049 cf_goto_framenum(capture_file *cf)
4051 header_field_info *hfinfo;
4054 if (cf->finfo_selected) {
4055 hfinfo = cf->finfo_selected->hfinfo;
4057 if (hfinfo->type == FT_FRAMENUM) {
4058 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
4060 return cf_goto_frame(cf, framenum);
4067 /* Select the packet on a given row. */
4069 cf_select_packet(capture_file *cf, int row)
4075 /* Get the frame data struct pointer for this frame */
4076 #ifdef NEW_PACKET_LIST
4077 fdata = new_packet_list_get_row_data(row);
4079 fdata = (frame_data *)packet_list_get_row_data(row);
4082 if (fdata == NULL) {
4083 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
4084 the first entry is added to it by "real_insert_row()", that row
4085 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
4086 our version and the vanilla GTK+ version).
4088 This means that a "select-row" signal is emitted; this causes
4089 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
4092 "cf_select_packet()" fetches, above, the data associated with the
4093 row that was selected; however, as "gtk_clist_append()", which
4094 called "real_insert_row()", hasn't yet returned, we haven't yet
4095 associated any data with that row, so we get back a null pointer.
4097 We can't assume that there's only one frame in the frame list,
4098 either, as we may be filtering the display.
4100 We therefore assume that, if "row" is 0, i.e. the first row
4101 is being selected, and "cf->first_displayed" equals
4102 "cf->last_displayed", i.e. there's only one frame being
4103 displayed, that frame is the frame we want.
4105 This means we have to set "cf->first_displayed" and
4106 "cf->last_displayed" before adding the row to the
4107 GtkCList; see the comment in "add_packet_to_packet_list()". */
4109 if (row == 0 && cf->first_displayed == cf->last_displayed)
4110 fdata = cf->first_displayed;
4113 /* If fdata _still_ isn't set simply give up. */
4114 if (fdata == NULL) {
4118 /* Get the data in that frame. */
4119 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
4120 cf->pd, fdata->cap_len, &err, &err_info)) {
4121 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4122 cf_read_error_message(err, err_info), cf->filename);
4126 /* Record that this frame is the current frame. */
4127 cf->current_frame = fdata;
4128 cf->current_row = row;
4130 /* Create the logical protocol tree. */
4131 if (cf->edt != NULL)
4132 epan_dissect_free(cf->edt);
4134 /* We don't need the columns here. */
4135 cf->edt = epan_dissect_new(TRUE, TRUE);
4137 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4140 dfilter_macro_build_ftv_cache(cf->edt->tree);
4142 cf_callback_invoke(cf_cb_packet_selected, cf);
4145 /* Unselect the selected packet, if any. */
4147 cf_unselect_packet(capture_file *cf)
4149 /* Destroy the epan_dissect_t for the unselected packet. */
4150 if (cf->edt != NULL) {
4151 epan_dissect_free(cf->edt);
4155 /* No packet is selected. */
4156 cf->current_frame = NULL;
4157 cf->current_row = 0;
4159 cf_callback_invoke(cf_cb_packet_unselected, cf);
4161 /* No protocol tree means no selected field. */
4162 cf_unselect_field(cf);
4165 /* Unset the selected protocol tree field, if any. */
4167 cf_unselect_field(capture_file *cf)
4169 cf->finfo_selected = NULL;
4171 cf_callback_invoke(cf_cb_field_unselected, cf);
4175 * Mark a particular frame.
4178 cf_mark_frame(capture_file *cf, frame_data *frame)
4180 if (! frame->flags.marked) {
4181 frame->flags.marked = TRUE;
4182 if (cf->count > cf->marked_count)
4188 * Unmark a particular frame.
4191 cf_unmark_frame(capture_file *cf, frame_data *frame)
4193 if (frame->flags.marked) {
4194 frame->flags.marked = FALSE;
4195 if (cf->marked_count > 0)
4203 } save_callback_args_t;
4206 * Save a capture to a file, in a particular format, saving either
4207 * all packets, all currently-displayed packets, or all marked packets.
4209 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4210 * up a message box for the failure.
4213 save_packet(capture_file *cf _U_, frame_data *fdata,
4214 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4217 save_callback_args_t *args = argsp;
4218 struct wtap_pkthdr hdr;
4221 /* init the wtap header for saving */
4222 hdr.ts.secs = fdata->abs_ts.secs;
4223 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4224 hdr.caplen = fdata->cap_len;
4225 hdr.len = fdata->pkt_len;
4226 hdr.pkt_encap = fdata->lnk_t;
4228 /* and save the packet */
4229 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4230 cf_write_failure_alert_box(args->fname, err);
4237 * Can this capture file be saved in any format except by copying the raw data?
4240 cf_can_save_as(capture_file *cf)
4244 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4245 /* To save a file with Wiretap, Wiretap has to handle that format,
4246 and its code to handle that format must be able to write a file
4247 with this file's encapsulation type. */
4248 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4249 /* OK, we can write it out in this type. */
4254 /* No, we couldn't save it in any format. */
4259 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4261 gchar *from_filename;
4265 save_callback_args_t callback_args;
4267 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
4269 /* don't write over an existing file. */
4270 /* this should've been already checked by our caller, just to be sure... */
4271 if (file_exists(fname)) {
4272 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4273 "%sCapture file: \"%s\" already exists!%s\n\n"
4274 "Please choose a different filename.",
4275 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4279 packet_range_process_init(range);
4282 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4283 /* We're not filtering packets, and we're saving it in the format
4284 it's already in, so we can just move or copy the raw data. */
4286 if (cf->is_tempfile) {
4287 /* The file being saved is a temporary file from a live
4288 capture, so it doesn't need to stay around under that name;
4289 first, try renaming the capture buffer file to the new name. */
4291 if (ws_rename(cf->filename, fname) == 0) {
4292 /* That succeeded - there's no need to copy the source file. */
4293 from_filename = NULL;
4296 if (errno == EXDEV) {
4297 /* They're on different file systems, so we have to copy the
4300 from_filename = cf->filename;
4302 /* The rename failed, but not because they're on different
4303 file systems - put up an error message. (Or should we
4304 just punt and try to copy? The only reason why I'd
4305 expect the rename to fail and the copy to succeed would
4306 be if we didn't have permission to remove the file from
4307 the temporary directory, and that might be fixable - but
4308 is it worth requiring the user to go off and fix it?) */
4309 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4310 file_rename_error_message(errno), fname);
4316 from_filename = cf->filename;
4319 /* It's a permanent file, so we should copy it, and not remove the
4322 from_filename = cf->filename;
4326 /* Copy the file, if we haven't moved it. */
4327 if (!copy_file_binary_mode(from_filename, fname))
4331 /* Either we're filtering packets, or we're saving in a different
4332 format; we can't do that by copying or moving the capture file,
4333 we have to do it by writing the packets out in Wiretap. */
4334 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4337 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4341 /* XXX - we let the user save a subset of the packets.
4343 If we do that, should we make that file the current file? If so,
4344 it means we can no longer get at the other packets. What does
4347 /* Iterate through the list of packets, processing the packets we were
4350 XXX - we've already called "packet_range_process_init(range)", but
4351 "process_specified_packets()" will do it again. Fortunately,
4352 that's harmless in this case, as we haven't done anything to
4353 "range" since we initialized it. */
4354 callback_args.pdh = pdh;
4355 callback_args.fname = fname;
4356 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4357 TRUE, save_packet, &callback_args)) {
4360 /* Completed successfully. */
4364 /* The user decided to abort the saving.
4365 XXX - remove the output file? */
4369 /* Error while saving. */
4370 wtap_dump_close(pdh, &err);
4374 if (!wtap_dump_close(pdh, &err)) {
4375 cf_close_failure_alert_box(fname, err);
4380 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
4382 if (packet_range_process_all(range)) {
4383 /* We saved the entire capture, not just some packets from it.
4384 Open and read the file we saved it to.
4386 XXX - this is somewhat of a waste; we already have the
4387 packets, all this gets us is updated file type information
4388 (which we could just stuff into "cf"), and having the new
4389 file be the one we have opened and from which we're reading
4390 the data, and it means we have to spend time opening and
4391 reading the file, which could be a significant amount of
4392 time if the file is large. */
4393 cf->user_saved = TRUE;
4395 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4396 /* XXX - report errors if this fails?
4397 What should we return if it fails or is aborted? */
4398 switch (cf_read(cf)) {
4402 /* Just because we got an error, that doesn't mean we were unable
4403 to read any of the file; we handle what we could get from the
4407 case CF_READ_ABORTED:
4408 /* The user bailed out of re-reading the capture file; the
4409 capture file has been closed - just return (without
4410 changing any menu settings; "cf_close()" set them
4411 correctly for the "no capture file open" state). */
4414 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4420 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4425 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4426 gboolean for_writing, int file_type)
4429 /* Wiretap error. */
4432 case WTAP_ERR_NOT_REGULAR_FILE:
4433 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4434 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4438 case WTAP_ERR_RANDOM_OPEN_PIPE:
4439 /* Seen only when opening a capture file for reading. */
4440 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4441 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4445 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4446 /* Seen only when opening a capture file for reading. */
4447 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4448 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4452 case WTAP_ERR_UNSUPPORTED:
4453 /* Seen only when opening a capture file for reading. */
4454 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4455 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4457 filename, err_info);
4461 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4462 /* Seen only when opening a capture file for writing. */
4463 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4464 "The file \"%s\" is a pipe, and %s capture files can't be "
4465 "written to a pipe.",
4466 filename, wtap_file_type_string(file_type));
4469 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4470 /* Seen only when opening a capture file for writing. */
4471 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4472 "Wireshark doesn't support writing capture files in that format.");
4475 case WTAP_ERR_UNSUPPORTED_ENCAP:
4477 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4478 "Wireshark can't save this capture in that format.");
4480 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4481 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4483 filename, err_info);
4488 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4490 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4491 "Wireshark can't save this capture in that format.");
4493 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4494 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4499 case WTAP_ERR_BAD_RECORD:
4500 /* Seen only when opening a capture file for reading. */
4501 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4502 "The file \"%s\" appears to be damaged or corrupt.\n"
4504 filename, err_info);
4508 case WTAP_ERR_CANT_OPEN:
4510 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4511 "The file \"%s\" could not be created for some unknown reason.",
4514 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4515 "The file \"%s\" could not be opened for some unknown reason.",
4520 case WTAP_ERR_SHORT_READ:
4521 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4522 "The file \"%s\" appears to have been cut short"
4523 " in the middle of a packet or other data.",
4527 case WTAP_ERR_SHORT_WRITE:
4528 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4529 "A full header couldn't be written to the file \"%s\".",
4533 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4534 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4535 "Gzip compression not supported by this file type.");
4539 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4540 "The file \"%s\" could not be %s: %s.",
4542 for_writing ? "created" : "opened",
4543 wtap_strerror(err));
4548 open_failure_alert_box(filename, err, for_writing);
4553 file_rename_error_message(int err)
4556 static char errmsg_errno[1024+1];
4561 errmsg = "The path to the file \"%s\" doesn't exist.";
4565 errmsg = "You don't have permission to move the capture file to \"%s\".";
4569 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4570 "The file \"%%s\" could not be moved: %s.",
4571 wtap_strerror(err));
4572 errmsg = errmsg_errno;
4579 cf_read_error_message(int err, gchar *err_info)
4581 static char errmsg_errno[1024+1];
4585 case WTAP_ERR_UNSUPPORTED_ENCAP:
4586 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4587 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4592 case WTAP_ERR_BAD_RECORD:
4593 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4594 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4595 wtap_strerror(err), err_info);
4600 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4601 "An error occurred while reading from the file \"%%s\": %s.",
4602 wtap_strerror(err));
4605 return errmsg_errno;
4609 cf_write_failure_alert_box(const char *filename, int err)
4612 /* Wiretap error. */
4613 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4614 "An error occurred while writing to the file \"%s\": %s.",
4615 filename, wtap_strerror(err));
4618 write_failure_alert_box(filename, err);
4622 /* Check for write errors - if the file is being written to an NFS server,
4623 a write error may not show up until the file is closed, as NFS clients
4624 might not send writes to the server until the "write()" call finishes,
4625 so that the write may fail on the server but the "write()" may succeed. */
4627 cf_close_failure_alert_box(const char *filename, int err)
4630 /* Wiretap error. */
4633 case WTAP_ERR_CANT_CLOSE:
4634 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4635 "The file \"%s\" couldn't be closed for some unknown reason.",
4639 case WTAP_ERR_SHORT_WRITE:
4640 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4641 "Not all the packets could be written to the file \"%s\".",
4646 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4647 "An error occurred while closing the file \"%s\": %s.",
4648 filename, wtap_strerror(err));
4653 We assume that a close error from the OS is really a write error. */
4654 write_failure_alert_box(filename, err);
4658 /* Reload the current capture file. */
4660 cf_reload(capture_file *cf) {
4662 gboolean is_tempfile;
4665 /* If the file could be opened, "cf_open()" calls "cf_close()"
4666 to get rid of state for the old capture file before filling in state
4667 for the new capture file. "cf_close()" will remove the file if
4668 it's a temporary file; we don't want that to happen (for one thing,
4669 it'd prevent subsequent reopens from working). Remember whether it's
4670 a temporary file, mark it as not being a temporary file, and then
4671 reopen it as the type of file it was.
4673 Also, "cf_close()" will free "cf->filename", so we must make
4674 a copy of it first. */
4675 filename = g_strdup(cf->filename);
4676 is_tempfile = cf->is_tempfile;
4677 cf->is_tempfile = FALSE;
4678 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4679 switch (cf_read(cf)) {
4683 /* Just because we got an error, that doesn't mean we were unable
4684 to read any of the file; we handle what we could get from the
4688 case CF_READ_ABORTED:
4689 /* The user bailed out of re-reading the capture file; the
4690 capture file has been closed - just free the capture file name
4691 string and return (without changing the last containing
4697 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4698 Instead, the file was left open, so we should restore "cf->is_tempfile"
4701 XXX - change the menu? Presumably "cf_open()" will do that;
4702 make sure it does! */
4703 cf->is_tempfile = is_tempfile;
4705 /* "cf_open()" made a copy of the file name we handed it, so
4706 we should free up our copy. */