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;
321 nstime_set_zero(&cf->elapsed_time);
322 nstime_set_unset(&first_ts);
323 nstime_set_unset(&prev_dis_ts);
325 #if GLIB_CHECK_VERSION(2,10,0)
327 /* memory chunks have been deprecated in favor of the slice allocator,
328 * which has been added in 2.10
330 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
332 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
334 g_assert(cf->plist_chunk);
336 /* change the time formats now, as we might have a new precision */
337 cf_change_time_formats(cf);
339 fileset_file_opened(fname);
341 if(cf->cd_t == WTAP_FILE_BER) {
342 /* tell the BER dissector the file name */
343 ber_set_filename(cf->filename);
349 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
355 * Reset the state for the currently closed file, but don't do the
356 * UI callbacks; this is for use in "cf_open()", where we don't
357 * want the UI to go from "file open" to "file closed" back to
358 * "file open", we want it to go from "old file open" to "new file
359 * open and being read".
362 cf_reset_state(capture_file *cf)
364 /* Die if we're in the middle of reading a file. */
365 g_assert(cf->state != FILE_READ_IN_PROGRESS);
371 /* We have no file open... */
372 if (cf->filename != NULL) {
373 /* If it's a temporary file, remove it. */
375 ws_unlink(cf->filename);
376 g_free(cf->filename);
379 /* ...which means we have nothing to save. */
380 cf->user_saved = FALSE;
382 #if GLIB_CHECK_VERSION(2,10,0)
383 if (cf->plist != NULL)
384 g_slice_free_chain(frame_data, cf->plist, next);
386 /* memory chunks have been deprecated in favor of the slice allocator,
387 * which has been added in 2.10
389 if (cf->plist_chunk != NULL) {
390 g_mem_chunk_destroy(cf->plist_chunk);
391 cf->plist_chunk = NULL;
394 if (cf->rfcode != NULL) {
395 dfilter_free(cf->rfcode);
399 cf->plist_end = NULL;
400 cf_unselect_packet(cf); /* nothing to select */
401 cf->first_displayed = NULL;
402 cf->last_displayed = NULL;
404 /* No frame selected, no field in that frame selected. */
405 cf->current_frame = NULL;
407 cf->finfo_selected = NULL;
409 /* Clear the packet list. */
410 #ifdef NEW_PACKET_LIST
411 new_packet_list_freeze();
412 new_packet_list_clear();
413 new_packet_list_thaw();
415 packet_list_freeze();
422 nstime_set_zero(&cf->elapsed_time);
424 reset_tap_listeners();
426 /* We have no file open. */
427 cf->state = FILE_CLOSED;
429 fileset_file_closed();
432 /* Reset everything to a pristine state */
434 cf_close(capture_file *cf)
436 /* do GUI things even if file is already closed,
437 * e.g. to cleanup things if a capture couldn't be started */
438 cf_callback_invoke(cf_cb_file_closing, cf);
440 /* close things, if not already closed before */
441 if(cf->state != FILE_CLOSED) {
442 color_filters_cleanup();
444 cleanup_dissection();
447 cf_callback_invoke(cf_cb_file_closed, cf);
450 /* an out of memory exception occured, wait for a user button press to exit */
451 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
456 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
460 progbar_val = (gfloat) file_pos / (gfloat) size;
461 if (progbar_val > 1.0) {
462 /* The file probably grew while we were reading it.
463 Update file size, and try again. */
464 size = wtap_file_size(cf->wth, NULL);
466 progbar_val = (gfloat) file_pos / (gfloat) size;
467 /* If it's still > 1, either "wtap_file_size()" failed (in which
468 case there's not much we can do about it), or the file
469 *shrank* (in which case there's not much we can do about
470 it); just clip the progress value at 1.0. */
471 if (progbar_val > 1.0f)
478 cf_read(capture_file *cf)
482 const gchar *name_ptr;
484 char errmsg_errno[1024+1];
486 progdlg_t *volatile progbar = NULL;
488 volatile gint64 size;
489 volatile float progbar_val;
491 gchar status_str[100];
492 volatile gint64 progbar_nextstep;
493 volatile gint64 progbar_quantum;
495 gboolean filtering_tap_listeners;
497 volatile int count = 0;
499 volatile int displayed_once = 0;
502 /* Compile the current display filter.
503 * We assume this will not fail since cf->dfilter is only set in
504 * cf_filter IFF the filter was valid.
508 dfilter_compile(cf->dfilter, &dfcode);
511 /* Do we have any tap listeners with filters? */
512 filtering_tap_listeners = have_filtering_tap_listeners();
514 /* Get the union of the flags for all tap listeners. */
515 tap_flags = union_of_tap_listener_flags();
519 reset_tap_listeners();
521 cf_callback_invoke(cf_cb_file_read_start, cf);
523 name_ptr = get_basename(cf->filename);
525 /* Find the size of the file. */
526 size = wtap_file_size(cf->wth, NULL);
528 /* Update the progress bar when it gets to this value. */
529 progbar_nextstep = 0;
530 /* When we reach the value that triggers a progress bar update,
531 bump that value by this amount. */
533 progbar_quantum = size/N_PROGBAR_UPDATES;
534 if (progbar_quantum < MIN_QUANTUM)
535 progbar_quantum = MIN_QUANTUM;
538 /* Progress so far. */
541 #ifdef NEW_PACKET_LIST
542 new_packet_list_freeze();
544 packet_list_freeze();
548 g_get_current_time(&start_time);
550 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
553 /* Create the progress bar if necessary.
554 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
556 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
557 progbar_val = calc_progbar_val( cf, size, data_offset);
558 progbar = delayed_create_progress_dlg("Loading", name_ptr,
559 TRUE, &stop_flag, &start_time, progbar_val);
562 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
563 when we update it, we have to run the GTK+ main loop to get it
564 to repaint what's pending, and doing so may involve an "ioctl()"
565 to see if there's any pending input from an X server, and doing
566 that for every packet can be costly, especially on a big file. */
567 if (data_offset >= progbar_nextstep) {
568 if (progbar != NULL) {
569 progbar_val = calc_progbar_val( cf, size, data_offset);
570 /* update the packet lists content on the first run or frequently on very large files */
571 /* (on smaller files the display update takes longer than reading the file) */
573 if (progbar_quantum > 500000 || displayed_once == 0) {
574 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
576 #ifdef NEW_PACKET_LIST
577 new_packet_list_thaw();
578 if (auto_scroll_live)
579 new_packet_list_moveto_end();
580 new_packet_list_freeze();
583 if (auto_scroll_live)
584 packet_list_moveto_end();
585 packet_list_freeze();
586 #endif /* NEW_PACKET_LIST */
589 #endif /* HAVE_LIBPCAP */
590 g_snprintf(status_str, sizeof(status_str),
591 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
592 data_offset / 1024, size / 1024);
593 update_progress_dlg(progbar, progbar_val, status_str);
595 progbar_nextstep += progbar_quantum;
600 /* Well, the user decided to abort the read. He/She will be warned and
601 it might be enough for him/her to work with the already loaded
603 This is especially true for very large capture files, where you don't
604 want to wait loading the whole file (which may last minutes or even
605 hours even on fast machines) just to see that it was the wrong file. */
609 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
611 CATCH(OutOfMemoryError) {
614 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
615 "%sOut Of Memory!%s\n"
617 "Sorry, but Wireshark has to terminate now!\n"
619 "Some infos / workarounds can be found at:\n"
620 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
621 simple_dialog_primary_start(), simple_dialog_primary_end());
622 /* we have to terminate, as we cannot recover from the memory error */
623 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
625 main_window_update();
626 /* XXX - how to avoid a busy wait? */
634 /* Cleanup and release all dfilter resources */
636 dfilter_free(dfcode);
639 /* We're done reading the file; destroy the progress bar if it was created. */
641 destroy_progress_dlg(progbar);
643 /* We're done reading sequentially through the file. */
644 cf->state = FILE_READ_DONE;
646 /* Close the sequential I/O side, to free up memory it requires. */
647 wtap_sequential_close(cf->wth);
649 /* Allow the protocol dissectors to free up memory that they
650 * don't need after the sequential run-through of the packets. */
651 postseq_cleanup_all_protocols();
653 /* compute the time it took to load the file */
654 compute_elapsed(&start_time);
656 /* Set the file encapsulation type now; we don't know what it is until
657 we've looked at all the packets, as we don't know until then whether
658 there's more than one type (and thus whether it's
659 WTAP_ENCAP_PER_PACKET). */
660 cf->lnk_t = wtap_file_encap(cf->wth);
662 cf->current_frame = cf->first_displayed;
665 #ifdef NEW_PACKET_LIST
666 new_packet_list_thaw();
671 cf_callback_invoke(cf_cb_file_read_finished, cf);
673 /* If we have any displayed packets to select, select the first of those
674 packets by making the first row the selected row. */
675 if (cf->first_displayed != NULL){
676 #ifdef NEW_PACKET_LIST
677 new_packet_list_select_first_row();
679 packet_list_select_row(0);
680 #endif /* NEW_PACKET_LIST */
684 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
685 "%sFile loading was cancelled!%s\n"
687 "The remaining packets in the file were discarded.\n"
689 "As a lot of packets from the original file will be missing,\n"
690 "remember to be careful when saving the current content to a file.\n",
691 simple_dialog_primary_start(), simple_dialog_primary_end());
692 return CF_READ_ERROR;
696 /* Put up a message box noting that the read failed somewhere along
697 the line. Don't throw out the stuff we managed to read, though,
701 case WTAP_ERR_UNSUPPORTED_ENCAP:
702 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
703 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
706 errmsg = errmsg_errno;
709 case WTAP_ERR_CANT_READ:
710 errmsg = "An attempt to read from the capture file failed for"
711 " some unknown reason.";
714 case WTAP_ERR_SHORT_READ:
715 errmsg = "The capture file appears to have been cut short"
716 " in the middle of a packet.";
719 case WTAP_ERR_BAD_RECORD:
720 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
721 "The capture file appears to be damaged or corrupt.\n(%s)",
724 errmsg = errmsg_errno;
728 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
729 "An error occurred while reading the"
730 " capture file: %s.", wtap_strerror(err));
731 errmsg = errmsg_errno;
734 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
735 return CF_READ_ERROR;
742 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
744 cf_status_t cf_status;
746 cf_status = cf_open(cf, fname, is_tempfile, err);
751 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
753 gint64 data_offset = 0;
755 volatile int newly_displayed_packets = 0;
757 gboolean filtering_tap_listeners;
761 /* Compile the current display filter.
762 * We assume this will not fail since cf->dfilter is only set in
763 * cf_filter IFF the filter was valid.
767 dfilter_compile(cf->dfilter, &dfcode);
770 /* Do we have any tap listeners with filters? */
771 filtering_tap_listeners = have_filtering_tap_listeners();
773 /* Get the union of the flags for all tap listeners. */
774 tap_flags = union_of_tap_listener_flags();
778 #ifdef NEW_PACKET_LIST
779 new_packet_list_check_end();
780 new_packet_list_freeze();
782 packet_list_check_end();
783 packet_list_freeze();
786 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
788 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
789 if (cf->state == FILE_READ_ABORTED) {
790 /* Well, the user decided to exit Wireshark. Break out of the
791 loop, and let the code below (which is called even if there
792 aren't any packets left to read) exit. */
796 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
797 data_offset) != -1) {
799 newly_displayed_packets++;
804 CATCH(OutOfMemoryError) {
807 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
808 "%sOut Of Memory!%s\n"
810 "Sorry, but Wireshark has to terminate now!\n"
812 "The capture file is not lost, it can be found at:\n"
815 "Some infos / workarounds can be found at:\n"
816 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
817 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
818 /* we have to terminate, as we cannot recover from the memory error */
819 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
821 main_window_update();
822 /* XXX - how to avoid a busy wait? */
825 #ifdef NEW_PACKET_LIST
826 new_packet_list_thaw();
830 return CF_READ_ABORTED;
836 /* Cleanup and release all dfilter resources */
838 dfilter_free(dfcode);
841 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
842 cf->count, cf->state, *err);*/
844 #ifdef NEW_PACKET_LIST
845 new_packet_list_thaw();
847 /* XXX - this causes "flickering" of the list */
851 /* moving to the end of the packet list - if the user requested so and
852 we have some new packets. */
853 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
854 #ifdef NEW_PACKET_LIST
856 new_packet_list_moveto_end();
858 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
859 packet_list_thaw() is done, see bugzilla 1188 */
860 /* XXX - this cheats and looks inside the packet list to find the final
862 packet_list_moveto_end();
863 #endif /* NEW_PACKET_LIST */
865 if (cf->state == FILE_READ_ABORTED) {
866 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
867 so that our caller can kill off the capture child process;
868 this will cause an EOF on the pipe from the child, so
869 "cf_finish_tail()" will be called, and it will clean up
871 return CF_READ_ABORTED;
872 } else if (*err != 0) {
873 /* We got an error reading the capture file.
874 XXX - pop up a dialog box instead? */
875 g_warning("Error \"%s\" while reading: \"%s\"\n",
876 wtap_strerror(*err), cf->filename);
878 return CF_READ_ERROR;
884 cf_finish_tail(capture_file *cf, int *err)
889 gboolean filtering_tap_listeners;
892 /* Compile the current display filter.
893 * We assume this will not fail since cf->dfilter is only set in
894 * cf_filter IFF the filter was valid.
898 dfilter_compile(cf->dfilter, &dfcode);
901 /* Do we have any tap listeners with filters? */
902 filtering_tap_listeners = have_filtering_tap_listeners();
904 /* Get the union of the flags for all tap listeners. */
905 tap_flags = union_of_tap_listener_flags();
907 if(cf->wth == NULL) {
909 return CF_READ_ERROR;
912 #ifdef NEW_PACKET_LIST
913 new_packet_list_check_end();
914 new_packet_list_freeze();
916 packet_list_check_end();
917 packet_list_freeze();
920 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
921 if (cf->state == FILE_READ_ABORTED) {
922 /* Well, the user decided to abort the read. Break out of the
923 loop, and let the code below (which is called even if there
924 aren't any packets left to read) exit. */
927 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
930 /* Cleanup and release all dfilter resources */
932 dfilter_free(dfcode);
935 #ifdef NEW_PACKET_LIST
936 new_packet_list_thaw();
941 if (cf->state == FILE_READ_ABORTED) {
942 /* Well, the user decided to abort the read. We're only called
943 when the child capture process closes the pipe to us (meaning
944 it's probably exited), so we can just close the capture
945 file; we return CF_READ_ABORTED so our caller can do whatever
946 is appropriate when that happens. */
948 return CF_READ_ABORTED;
951 if (auto_scroll_live && cf->plist_end != NULL)
952 #ifdef NEW_PACKET_LIST
953 new_packet_list_moveto_end();
955 /* XXX - this cheats and looks inside the packet list to find the final
957 packet_list_moveto_end();
960 /* We're done reading sequentially through the file. */
961 cf->state = FILE_READ_DONE;
963 /* We're done reading sequentially through the file; close the
964 sequential I/O side, to free up memory it requires. */
965 wtap_sequential_close(cf->wth);
967 /* Allow the protocol dissectors to free up memory that they
968 * don't need after the sequential run-through of the packets. */
969 postseq_cleanup_all_protocols();
971 /* Set the file encapsulation type now; we don't know what it is until
972 we've looked at all the packets, as we don't know until then whether
973 there's more than one type (and thus whether it's
974 WTAP_ENCAP_PER_PACKET). */
975 cf->lnk_t = wtap_file_encap(cf->wth);
978 /* We got an error reading the capture file.
979 XXX - pop up a dialog box? */
980 return CF_READ_ERROR;
985 #endif /* HAVE_LIBPCAP */
988 cf_get_display_name(capture_file *cf)
990 const gchar *displayname;
992 /* Return a name to use in displays */
993 if (!cf->is_tempfile) {
994 /* Get the last component of the file name, and use that. */
996 displayname = get_basename(cf->filename);
998 displayname="(No file)";
1001 /* The file we read is a temporary file from a live capture;
1002 we don't mention its name. */
1003 displayname = "(Untitled)";
1008 /* XXX - use a macro instead? */
1010 cf_get_packet_count(capture_file *cf)
1015 /* XXX - use a macro instead? */
1017 cf_set_packet_count(capture_file *cf, int packet_count)
1019 cf->count = packet_count;
1022 /* XXX - use a macro instead? */
1024 cf_is_tempfile(capture_file *cf)
1026 return cf->is_tempfile;
1029 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1031 cf->is_tempfile = is_tempfile;
1035 /* XXX - use a macro instead? */
1036 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1038 cf->drops_known = drops_known;
1041 /* XXX - use a macro instead? */
1042 void cf_set_drops(capture_file *cf, guint32 drops)
1047 /* XXX - use a macro instead? */
1048 gboolean cf_get_drops_known(capture_file *cf)
1050 return cf->drops_known;
1053 /* XXX - use a macro instead? */
1054 guint32 cf_get_drops(capture_file *cf)
1059 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1061 cf->rfcode = rfcode;
1065 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1066 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1068 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1070 #ifdef NEW_PACKET_LIST
1071 gboolean add_to_packet_list)
1073 gboolean add_to_packet_list _U_)
1076 gboolean create_proto_tree = FALSE;
1081 #ifdef NEW_PACKET_LIST
1082 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1087 /* just add some value here until we know if it is being displayed or not */
1088 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1090 /* If we don't have the time stamp of the first packet in the
1091 capture, it's because this is the first packet. Save the time
1092 stamp of this packet as the time stamp of the first packet. */
1093 if (nstime_is_unset(&first_ts)) {
1094 first_ts = fdata->abs_ts;
1096 /* if this frames is marked as a reference time frame, reset
1097 firstsec and firstusec to this frame */
1098 if(fdata->flags.ref_time){
1099 first_ts = fdata->abs_ts;
1102 /* If we don't have the time stamp of the previous displayed packet,
1103 it's because this is the first displayed packet. Save the time
1104 stamp of this packet as the time stamp of the previous displayed
1106 if (nstime_is_unset(&prev_dis_ts)) {
1107 prev_dis_ts = fdata->abs_ts;
1110 /* Get the time elapsed between the first packet and this packet. */
1111 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1113 /* If it's greater than the current elapsed time, set the elapsed time
1114 to it (we check for "greater than" so as not to be confused by
1115 time moving backwards). */
1116 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1117 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1118 cf->elapsed_time = fdata->rel_ts;
1121 /* Get the time elapsed between the previous displayed packet and
1123 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1127 we have a display filter and are re-applying it;
1129 we have a list of color filters;
1131 we have tap listeners with filters;
1133 we have tap listeners that require a protocol tree;
1135 we have custom columns;
1137 allocate a protocol tree root node, so that we'll construct
1138 a protocol tree against which a filter expression can be
1140 if ((dfcode != NULL && refilter) ||
1141 #ifndef NEW_PACKET_LIST
1142 color_filters_used() ||
1143 have_custom_cols(cinfo) ||
1145 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1146 create_proto_tree = TRUE;
1148 /* Dissect the frame. */
1149 epan_dissect_init(&edt, create_proto_tree, FALSE);
1151 if (dfcode != NULL && refilter) {
1152 epan_dissect_prime_dfilter(&edt, dfcode);
1155 /* prepare color filters */
1156 #ifndef NEW_PACKET_LIST
1157 color_filters_prime_edt(&edt);
1158 col_custom_prime_edt(&edt, cinfo);
1161 tap_queue_init(&edt);
1162 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1163 tap_push_tapped_queue(&edt);
1165 /* If we have a display filter, apply it if we're refiltering, otherwise
1166 leave the "passed_dfilter" flag alone.
1168 If we don't have a display filter, set "passed_dfilter" to 1. */
1169 if (dfcode != NULL) {
1171 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1174 fdata->flags.passed_dfilter = 1;
1176 #ifdef NEW_PACKET_LIST
1177 if (add_to_packet_list) {
1178 /* We fill the needed columns from new_packet_list */
1179 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1183 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1185 /* This frame either passed the display filter list or is marked as
1186 a time reference frame. All time reference frames are displayed
1187 even if they dont pass the display filter */
1188 if(fdata->flags.ref_time){
1189 /* if this was a TIME REF frame we should reset the cul bytes field */
1190 cum_bytes = fdata->pkt_len;
1191 fdata->cum_bytes = cum_bytes;
1193 /* increase cum_bytes with this packets length */
1194 cum_bytes += fdata->pkt_len;
1197 #ifndef NEW_PACKET_LIST
1198 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1201 /* If we haven't yet seen the first frame, this is it.
1203 XXX - we must do this before we add the row to the display,
1204 as, if the display's GtkCList's selection mode is
1205 GTK_SELECTION_BROWSE, when the first entry is added to it,
1206 "cf_select_packet()" will be called, and it will fetch the row
1207 data for the 0th row, and will get a null pointer rather than
1208 "fdata", as "gtk_clist_append()" won't yet have returned and
1209 thus "gtk_clist_set_row_data()" won't yet have been called.
1211 We thus need to leave behind bread crumbs so that
1212 "cf_select_packet()" can find this frame. See the comment
1213 in "cf_select_packet()". */
1214 if (cf->first_displayed == NULL)
1215 cf->first_displayed = fdata;
1217 /* This is the last frame we've seen so far. */
1218 cf->last_displayed = fdata;
1220 #ifndef NEW_PACKET_LIST
1221 row = packet_list_append(cinfo->col_data, fdata);
1223 /* colorize packet: first apply color filters
1224 * then if packet is marked, use preferences to overwrite color
1225 * we do both to make sure that when a packet gets un-marked, the
1226 * color will be correctly set (fixes bug 2038)
1228 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1229 if (fdata->flags.marked) {
1230 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1232 #endif /* NEW_PACKET_LIST */
1234 /* Set the time of the previous displayed frame to the time of this
1236 prev_dis_ts = fdata->abs_ts;
1238 cf->displayed_count++;
1241 epan_dissect_cleanup(&edt);
1245 /* read in a new packet */
1246 /* returns the row of the new packet in the packet list or -1 if not displayed */
1248 read_packet(capture_file *cf, dfilter_t *dfcode,
1249 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1251 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1252 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1253 const guchar *buf = wtap_buf_ptr(cf->wth);
1256 frame_data *plist_end;
1259 /* Allocate the next list entry, and add it to the list.
1260 * memory chunks have been deprecated in favor of the slice allocator,
1261 * which has been added in 2.10
1263 #if GLIB_CHECK_VERSION(2,10,0)
1264 fdata = g_slice_new(frame_data);
1266 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1272 fdata->pkt_len = phdr->len;
1273 fdata->cap_len = phdr->caplen;
1274 fdata->file_off = offset;
1275 /* To save some memory, we coarcese it into a gint8 */
1276 g_assert(phdr->pkt_encap <= G_MAXINT8);
1277 fdata->lnk_t = (gint8) phdr->pkt_encap;
1278 fdata->flags.encoding = CHAR_ASCII;
1279 fdata->flags.visited = 0;
1280 fdata->flags.marked = 0;
1281 fdata->flags.ref_time = 0;
1282 fdata->color_filter = NULL;
1283 fdata->col_text = NULL;
1284 fdata->col_text_len = NULL;
1286 fdata->abs_ts.secs = phdr->ts.secs;
1287 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1288 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1289 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1291 if (cf->plist_end != NULL)
1292 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &cf->plist_end->abs_ts);
1294 nstime_set_zero(&fdata->del_cap_ts);
1299 epan_dissect_init(&edt, TRUE, FALSE);
1300 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1301 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1302 passed = dfilter_apply_edt(cf->rfcode, &edt);
1303 epan_dissect_cleanup(&edt);
1306 plist_end = cf->plist_end;
1307 fdata->prev = plist_end;
1308 if (plist_end != NULL)
1309 plist_end->next = fdata;
1312 cf->plist_end = fdata;
1315 cf->f_datalen = offset + phdr->caplen;
1316 fdata->num = cf->count;
1317 if (!cf->redissecting) {
1318 row = add_packet_to_packet_list(fdata, cf, dfcode,
1319 filtering_tap_listeners, tap_flags,
1320 pseudo_header, buf, TRUE, TRUE);
1323 /* XXX - if we didn't have read filters, or if we could avoid
1324 allocating the "frame_data" structure until we knew whether
1325 the frame passed the read filter, we could use a G_ALLOC_ONLY
1328 ...but, at least in one test I did, where I just made the chunk
1329 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1330 seem to save a noticeable amount of time or space. */
1331 #if GLIB_CHECK_VERSION(2,10,0)
1332 /* memory chunks have been deprecated in favor of the slice allocator,
1333 * which has been added in 2.10
1335 g_slice_free(frame_data,fdata);
1337 g_mem_chunk_free(cf->plist_chunk, fdata);
1345 cf_merge_files(char **out_filenamep, int in_file_count,
1346 char *const *in_filenames, int file_type, gboolean do_append)
1348 merge_in_file_t *in_files;
1354 int open_err, read_err, write_err, close_err;
1358 char errmsg_errno[1024+1];
1360 gboolean got_read_error = FALSE, got_write_error = FALSE;
1362 progdlg_t *progbar = NULL;
1364 gint64 f_len, file_pos;
1366 GTimeVal start_time;
1367 gchar status_str[100];
1368 gint64 progbar_nextstep;
1369 gint64 progbar_quantum;
1371 /* open the input files */
1372 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1373 &open_err, &err_info, &err_fileno)) {
1375 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1380 if (*out_filenamep != NULL) {
1381 out_filename = *out_filenamep;
1382 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1386 out_fd = create_tempfile(&tmpname, "wireshark");
1389 out_filename = g_strdup(tmpname);
1390 *out_filenamep = out_filename;
1394 merge_close_in_files(in_file_count, in_files);
1396 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1400 pdh = wtap_dump_fdopen(out_fd, file_type,
1401 merge_select_frame_type(in_file_count, in_files),
1402 merge_max_snapshot_length(in_file_count, in_files),
1403 FALSE /* compressed */, &open_err);
1406 merge_close_in_files(in_file_count, in_files);
1408 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1413 /* Get the sum of the sizes of all the files. */
1415 for (i = 0; i < in_file_count; i++)
1416 f_len += in_files[i].size;
1418 /* Update the progress bar when it gets to this value. */
1419 progbar_nextstep = 0;
1420 /* When we reach the value that triggers a progress bar update,
1421 bump that value by this amount. */
1422 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1423 /* Progress so far. */
1427 g_get_current_time(&start_time);
1429 /* do the merge (or append) */
1432 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1435 wth = merge_read_packet(in_file_count, in_files, &read_err,
1439 got_read_error = TRUE;
1443 /* Get the sum of the data offsets in all of the files. */
1445 for (i = 0; i < in_file_count; i++)
1446 data_offset += in_files[i].data_offset;
1448 /* Create the progress bar if necessary.
1449 We check on every iteration of the loop, so that it takes no
1450 longer than the standard time to create it (otherwise, for a
1451 large file, we might take considerably longer than that standard
1452 time in order to get to the next progress bar step). */
1453 if (progbar == NULL) {
1454 progbar = delayed_create_progress_dlg("Merging", "files",
1455 FALSE, &stop_flag, &start_time, progbar_val);
1458 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1459 when we update it, we have to run the GTK+ main loop to get it
1460 to repaint what's pending, and doing so may involve an "ioctl()"
1461 to see if there's any pending input from an X server, and doing
1462 that for every packet can be costly, especially on a big file. */
1463 if (data_offset >= progbar_nextstep) {
1464 /* Get the sum of the seek positions in all of the files. */
1466 for (i = 0; i < in_file_count; i++)
1467 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1468 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1469 if (progbar_val > 1.0f) {
1470 /* Some file probably grew while we were reading it.
1471 That "shouldn't happen", so we'll just clip the progress
1475 if (progbar != NULL) {
1476 g_snprintf(status_str, sizeof(status_str),
1477 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1478 file_pos / 1024, f_len / 1024);
1479 update_progress_dlg(progbar, progbar_val, status_str);
1481 progbar_nextstep += progbar_quantum;
1485 /* Well, the user decided to abort the merge. */
1489 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1490 wtap_buf_ptr(wth), &write_err)) {
1491 got_write_error = TRUE;
1496 /* We're done merging the files; destroy the progress bar if it was created. */
1497 if (progbar != NULL)
1498 destroy_progress_dlg(progbar);
1500 merge_close_in_files(in_file_count, in_files);
1501 if (!got_read_error && !got_write_error) {
1502 if (!wtap_dump_close(pdh, &write_err))
1503 got_write_error = TRUE;
1505 wtap_dump_close(pdh, &close_err);
1507 if (got_read_error) {
1509 * Find the file on which we got the error, and report the error.
1511 for (i = 0; i < in_file_count; i++) {
1512 if (in_files[i].state == GOT_ERROR) {
1513 /* Put up a message box noting that a read failed somewhere along
1517 case WTAP_ERR_UNSUPPORTED_ENCAP:
1518 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1519 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1522 errmsg = errmsg_errno;
1525 case WTAP_ERR_CANT_READ:
1526 errmsg = "An attempt to read from the capture file %s failed for"
1527 " some unknown reason.";
1530 case WTAP_ERR_SHORT_READ:
1531 errmsg = "The capture file %s appears to have been cut short"
1532 " in the middle of a packet.";
1535 case WTAP_ERR_BAD_RECORD:
1536 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1537 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1540 errmsg = errmsg_errno;
1544 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1545 "An error occurred while reading the"
1546 " capture file %%s: %s.", wtap_strerror(read_err));
1547 errmsg = errmsg_errno;
1550 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1555 if (got_write_error) {
1556 /* Put up an alert box for the write error. */
1557 cf_write_failure_alert_box(out_filename, write_err);
1560 if (got_read_error || got_write_error || stop_flag) {
1561 /* Callers aren't expected to treat an error or an explicit abort
1562 differently - we put up error dialogs ourselves, so they don't
1570 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1572 const char *filter_new = dftext ? dftext : "";
1573 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1576 /* if new filter equals old one, do nothing unless told to do so */
1577 if (!force && strcmp(filter_new, filter_old) == 0) {
1583 if (dftext == NULL) {
1584 /* The new filter is an empty filter (i.e., display all packets).
1585 * so leave dfcode==NULL
1589 * We have a filter; make a copy of it (as we'll be saving it),
1590 * and try to compile it.
1592 dftext = g_strdup(dftext);
1593 if (!dfilter_compile(dftext, &dfcode)) {
1594 /* The attempt failed; report an error. */
1595 gchar *safe_dftext = simple_dialog_format_message(dftext);
1596 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1598 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1601 "The following display filter isn't a valid display filter:\n%s\n"
1602 "See the help for a description of the display filter syntax.",
1603 simple_dialog_primary_start(), safe_dfilter_error_msg,
1604 simple_dialog_primary_end(), safe_dftext);
1605 g_free(safe_dfilter_error_msg);
1606 g_free(safe_dftext);
1612 if (dfcode == NULL) {
1613 /* Yes - free the filter text, and set it to null. */
1619 /* We have a valid filter. Replace the current filter. */
1620 g_free(cf->dfilter);
1621 cf->dfilter = dftext;
1623 /* Now rescan the packet list, applying the new filter, but not
1624 throwing away information constructed on a previous pass. */
1625 if (dftext == NULL) {
1626 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1628 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1631 /* Cleanup and release all dfilter resources */
1632 if (dfcode != NULL){
1633 dfilter_free(dfcode);
1639 cf_colorize_packets(capture_file *cf)
1641 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1645 cf_reftime_packets(capture_file *cf)
1648 #ifdef NEW_PACKET_LIST
1649 ref_time_packets(cf);
1651 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1656 cf_redissect_packets(capture_file *cf)
1658 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1661 /* Rescan the list of packets, reconstructing the CList.
1663 "action" describes why we're doing this; it's used in the progress
1666 "action_item" describes what we're doing; it's used in the progress
1669 "refilter" is TRUE if we need to re-evaluate the filter expression.
1671 "redissect" is TRUE if we need to make the dissectors reconstruct
1672 any state information they have (because a preference that affects
1673 some dissector has changed, meaning some dissector might construct
1674 its state differently from the way it was constructed the last time). */
1676 /* Rescan packets with "old" packet list */
1677 #ifndef NEW_PACKET_LIST
1679 rescan_packets_old(capture_file *cf, const char *action, const char *action_item,
1680 gboolean refilter, gboolean redissect)
1683 progdlg_t *progbar = NULL;
1688 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1689 int selected_row, prev_row, preceding_row, following_row;
1690 gboolean selected_frame_seen;
1693 GTimeVal start_time;
1694 gchar status_str[100];
1695 int progbar_nextstep;
1696 int progbar_quantum;
1698 gboolean filtering_tap_listeners;
1700 gboolean add_to_packet_list = TRUE;
1702 /* Compile the current display filter.
1703 * We assume this will not fail since cf->dfilter is only set in
1704 * cf_filter IFF the filter was valid.
1708 dfilter_compile(cf->dfilter, &dfcode);
1711 /* Do we have any tap listeners with filters? */
1712 filtering_tap_listeners = have_filtering_tap_listeners();
1714 /* Get the union of the flags for all tap listeners. */
1715 tap_flags = union_of_tap_listener_flags();
1718 reset_tap_listeners();
1719 /* Which frame, if any, is the currently selected frame?
1720 XXX - should the selected frame or the focus frame be the "current"
1721 frame, that frame being the one from which "Find Frame" searches
1723 selected_frame = cf->current_frame;
1725 /* We don't yet know what row that frame will be on, if any, after we
1726 rebuild the clist, however. */
1729 /* Freeze the packet list while we redo it, so we don't get any
1730 screen updates while it happens. */
1731 packet_list_freeze();
1734 packet_list_clear();
1737 /* We need to re-initialize all the state information that protocols
1738 keep, because some preference that controls a dissector has changed,
1739 which might cause the state information to be constructed differently
1740 by that dissector. */
1742 /* We might receive new packets while redissecting, and we don't
1743 want to dissect those before their time. */
1744 cf->redissecting = TRUE;
1746 /* Cleanup all data structures used for dissection. */
1747 cleanup_dissection();
1748 /* Initialize all data structures used for dissection. */
1753 /* We don't yet know which will be the first and last frames displayed. */
1754 cf->first_displayed = NULL;
1755 cf->last_displayed = NULL;
1759 /* We currently don't display any packets */
1760 cf->displayed_count = 0;
1762 /* Iterate through the list of frames. Call a routine for each frame
1763 to check whether it should be displayed and, if so, add it to
1764 the display list. */
1765 nstime_set_unset(&first_ts);
1766 nstime_set_unset(&prev_dis_ts);
1768 /* Update the progress bar when it gets to this value. */
1769 progbar_nextstep = 0;
1770 /* When we reach the value that triggers a progress bar update,
1771 bump that value by this amount. */
1772 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1773 /* Count of packets at which we've looked. */
1775 /* Progress so far. */
1779 g_get_current_time(&start_time);
1781 row = -1; /* no previous row yet */
1786 preceding_frame = NULL;
1788 following_frame = NULL;
1790 selected_frame_seen = FALSE;
1792 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1793 /* Create the progress bar if necessary.
1794 We check on every iteration of the loop, so that it takes no
1795 longer than the standard time to create it (otherwise, for a
1796 large file, we might take considerably longer than that standard
1797 time in order to get to the next progress bar step). */
1798 if (progbar == NULL)
1799 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1800 &stop_flag, &start_time,
1803 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1804 when we update it, we have to run the GTK+ main loop to get it
1805 to repaint what's pending, and doing so may involve an "ioctl()"
1806 to see if there's any pending input from an X server, and doing
1807 that for every packet can be costly, especially on a big file. */
1808 if (count >= progbar_nextstep) {
1809 /* let's not divide by zero. I should never be started
1810 * with count == 0, so let's assert that
1812 g_assert(cf->count > 0);
1813 progbar_val = (gfloat) count / cf->count;
1815 if (progbar != NULL) {
1816 g_snprintf(status_str, sizeof(status_str),
1817 "%4u of %u frames", count, cf->count);
1818 update_progress_dlg(progbar, progbar_val, status_str);
1821 progbar_nextstep += progbar_quantum;
1825 /* Well, the user decided to abort the filtering. Just stop.
1827 XXX - go back to the previous filter? Users probably just
1828 want not to wait for a filtering operation to finish;
1829 unless we cancel by having no filter, reverting to the
1830 previous filter will probably be even more expensive than
1831 continuing the filtering, as it involves going back to the
1832 beginning and filtering, and even with no filter we currently
1833 have to re-generate the entire clist, which is also expensive.
1835 I'm not sure what Network Monitor does, but it doesn't appear
1836 to give you an unfiltered display if you cancel. */
1843 /* Since all state for the frame was destroyed, mark the frame
1844 * as not visited, free the GSList referring to the state
1845 * data (the per-frame data itself was freed by
1846 * "init_dissection()"), and null out the GSList pointer. */
1847 fdata->flags.visited = 0;
1849 g_slist_free(fdata->pfd);
1854 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1855 cf->pd, fdata->cap_len, &err, &err_info)) {
1856 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1857 cf_read_error_message(err, err_info), cf->filename);
1861 /* If the previous frame is displayed, and we haven't yet seen the
1862 selected frame, remember that frame - it's the closest one we've
1863 yet seen before the selected frame. */
1864 if (prev_row != -1 && !selected_frame_seen) {
1865 preceding_row = prev_row;
1866 preceding_frame = prev_frame;
1868 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1869 tap_flags, &cf->pseudo_header, cf->pd,
1871 add_to_packet_list);
1873 /* If this frame is displayed, and this is the first frame we've
1874 seen displayed after the selected frame, remember this frame -
1875 it's the closest one we've yet seen at or after the selected
1877 if (row != -1 && selected_frame_seen && following_row == -1) {
1878 following_row = row;
1879 following_frame = fdata;
1881 if (fdata == selected_frame) {
1883 selected_frame_seen = TRUE;
1886 /* Remember this row/frame - it'll be the previous row/frame
1887 on the next pass through the loop. */
1892 /* We are done redissecting the packet list. */
1893 cf->redissecting = FALSE;
1896 /* Clear out what remains of the visited flags and per-frame data
1899 XXX - that may cause various forms of bogosity when dissecting
1900 these frames, as they won't have been seen by this sequential
1901 pass, but the only alternative I see is to keep scanning them
1902 even though the user requested that the scan stop, and that
1903 would leave the user stuck with an Wireshark grinding on
1904 until it finishes. Should we just stick them with that? */
1905 for (; fdata != NULL; fdata = fdata->next) {
1906 fdata->flags.visited = 0;
1908 g_slist_free(fdata->pfd);
1914 /* We're done filtering the packets; destroy the progress bar if it
1916 if (progbar != NULL)
1917 destroy_progress_dlg(progbar);
1919 /* Unfreeze the packet list. */
1922 if (selected_row == -1) {
1923 /* The selected frame didn't pass the filter. */
1924 if (selected_frame == NULL) {
1925 /* That's because there *was* no selected frame. Make the first
1926 displayed frame the current frame. */
1929 /* Find the nearest displayed frame to the selected frame (whether
1930 it's before or after that frame) and make that the current frame.
1931 If the next and previous displayed frames are equidistant from the
1932 selected frame, choose the next one. */
1933 g_assert(following_frame == NULL ||
1934 following_frame->num >= selected_frame->num);
1935 g_assert(preceding_frame == NULL ||
1936 preceding_frame->num <= selected_frame->num);
1937 if (following_frame == NULL) {
1938 /* No frame after the selected frame passed the filter, so we
1939 have to select the last displayed frame before the selected
1941 selected_row = preceding_row;
1942 } else if (preceding_frame == NULL) {
1943 /* No frame before the selected frame passed the filter, so we
1944 have to select the first displayed frame after the selected
1946 selected_row = following_row;
1948 /* Frames before and after the selected frame passed the filter, so
1949 we'll select the previous frame */
1950 selected_row = preceding_row;
1955 if (selected_row == -1) {
1956 /* There are no frames displayed at all. */
1957 cf_unselect_packet(cf);
1959 /* Either the frame that was selected passed the filter, or we've
1960 found the nearest displayed frame to that frame. Select it, make
1961 it the focus row, and make it visible. */
1962 if (selected_row == 0) {
1963 /* Set to invalid to force update of packet list and packet details */
1964 cf->current_row = -1;
1966 packet_list_set_selected_row(selected_row);
1969 /* Cleanup and release all dfilter resources */
1970 if (dfcode != NULL){
1971 dfilter_free(dfcode);
1974 #endif /* NEW_PACKET_LIST rescan_packets_old*/
1977 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1978 gboolean refilter, gboolean redissect)
1980 #ifndef NEW_PACKET_LIST
1981 rescan_packets_old(cf, action, action_item, refilter, redissect);
1984 /* Rescan packets new packet list */
1986 progdlg_t *progbar = NULL;
1991 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1992 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1993 gboolean selected_frame_seen;
1996 GTimeVal start_time;
1997 gchar status_str[100];
1998 int progbar_nextstep;
1999 int progbar_quantum;
2001 gboolean filtering_tap_listeners;
2003 gboolean add_to_packet_list = FALSE;
2005 /* Compile the current display filter.
2006 * We assume this will not fail since cf->dfilter is only set in
2007 * cf_filter IFF the filter was valid.
2011 dfilter_compile(cf->dfilter, &dfcode);
2014 /* Do we have any tap listeners with filters? */
2015 filtering_tap_listeners = have_filtering_tap_listeners();
2017 /* Get the union of the flags for all tap listeners. */
2018 tap_flags = union_of_tap_listener_flags();
2021 reset_tap_listeners();
2022 /* Which frame, if any, is the currently selected frame?
2023 XXX - should the selected frame or the focus frame be the "current"
2024 frame, that frame being the one from which "Find Frame" searches
2026 selected_frame = cf->current_frame;
2028 /* Mark frane num as not found */
2029 selected_frame_num = -1;
2031 /* Freeze the packet list while we redo it, so we don't get any
2032 screen updates while it happens. */
2033 new_packet_list_freeze();
2036 /* We need to re-initialize all the state information that protocols
2037 keep, because some preference that controls a dissector has changed,
2038 which might cause the state information to be constructed differently
2039 by that dissector. */
2041 /* We might receive new packets while redissecting, and we don't
2042 want to dissect those before their time. */
2043 cf->redissecting = TRUE;
2045 /* Cleanup all data structures used for dissection. */
2046 cleanup_dissection();
2047 /* Initialize all data structures used for dissection. */
2050 /* We need to redissect the packets so we have to discard our old
2051 * packet list store. */
2052 new_packet_list_clear();
2053 add_to_packet_list = TRUE;
2056 /* We don't yet know which will be the first and last frames displayed. */
2057 cf->first_displayed = NULL;
2058 cf->last_displayed = NULL;
2062 /* We currently don't display any packets */
2063 cf->displayed_count = 0;
2065 /* Iterate through the list of frames. Call a routine for each frame
2066 to check whether it should be displayed and, if so, add it to
2067 the display list. */
2068 nstime_set_unset(&first_ts);
2069 nstime_set_unset(&prev_dis_ts);
2071 /* Update the progress bar when it gets to this value. */
2072 progbar_nextstep = 0;
2073 /* When we reach the value that triggers a progress bar update,
2074 bump that value by this amount. */
2075 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2076 /* Count of packets at which we've looked. */
2078 /* Progress so far. */
2082 g_get_current_time(&start_time);
2084 /* no previous row yet */
2086 prev_frame_num = -1;
2089 preceding_frame_num = -1;
2090 preceding_frame = NULL;
2091 following_frame_num = -1;
2092 following_frame = NULL;
2094 selected_frame_seen = FALSE;
2096 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2097 /* Create the progress bar if necessary.
2098 We check on every iteration of the loop, so that it takes no
2099 longer than the standard time to create it (otherwise, for a
2100 large file, we might take considerably longer than that standard
2101 time in order to get to the next progress bar step). */
2102 if (progbar == NULL)
2103 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2104 &stop_flag, &start_time,
2107 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2108 when we update it, we have to run the GTK+ main loop to get it
2109 to repaint what's pending, and doing so may involve an "ioctl()"
2110 to see if there's any pending input from an X server, and doing
2111 that for every packet can be costly, especially on a big file. */
2112 if (count >= progbar_nextstep) {
2113 /* let's not divide by zero. I should never be started
2114 * with count == 0, so let's assert that
2116 g_assert(cf->count > 0);
2117 progbar_val = (gfloat) count / cf->count;
2119 if (progbar != NULL) {
2120 g_snprintf(status_str, sizeof(status_str),
2121 "%4u of %u frames", count, cf->count);
2122 update_progress_dlg(progbar, progbar_val, status_str);
2125 progbar_nextstep += progbar_quantum;
2129 /* Well, the user decided to abort the filtering. Just stop.
2131 XXX - go back to the previous filter? Users probably just
2132 want not to wait for a filtering operation to finish;
2133 unless we cancel by having no filter, reverting to the
2134 previous filter will probably be even more expensive than
2135 continuing the filtering, as it involves going back to the
2136 beginning and filtering, and even with no filter we currently
2137 have to re-generate the entire clist, which is also expensive.
2139 I'm not sure what Network Monitor does, but it doesn't appear
2140 to give you an unfiltered display if you cancel. */
2147 /* Since all state for the frame was destroyed, mark the frame
2148 * as not visited, free the GSList referring to the state
2149 * data (the per-frame data itself was freed by
2150 * "init_dissection()"), and null out the GSList pointer. */
2151 fdata->flags.visited = 0;
2153 g_slist_free(fdata->pfd);
2158 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2159 cf->pd, fdata->cap_len, &err, &err_info)) {
2160 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2161 cf_read_error_message(err, err_info), cf->filename);
2165 /* If the previous frame is displayed, and we haven't yet seen the
2166 selected frame, remember that frame - it's the closest one we've
2167 yet seen before the selected frame. */
2168 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
2169 preceding_frame_num = prev_frame_num;
2170 preceding_frame = prev_frame;
2172 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2173 tap_flags, &cf->pseudo_header, cf->pd,
2175 add_to_packet_list);
2177 /* If this frame is displayed, and this is the first frame we've
2178 seen displayed after the selected frame, remember this frame -
2179 it's the closest one we've yet seen at or after the selected
2181 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2182 following_frame_num = fdata->num;
2183 following_frame = fdata;
2185 if (fdata == selected_frame) {
2186 selected_frame_seen = TRUE;
2187 if (fdata->flags.passed_dfilter)
2188 selected_frame_num = fdata->num;
2191 /* Remember this frame - it'll be the previous frame
2192 on the next pass through the loop. */
2193 prev_frame_num = fdata->num;
2197 /* We are done redissecting the packet list. */
2198 cf->redissecting = FALSE;
2201 /* Clear out what remains of the visited flags and per-frame data
2204 XXX - that may cause various forms of bogosity when dissecting
2205 these frames, as they won't have been seen by this sequential
2206 pass, but the only alternative I see is to keep scanning them
2207 even though the user requested that the scan stop, and that
2208 would leave the user stuck with an Wireshark grinding on
2209 until it finishes. Should we just stick them with that? */
2210 for (; fdata != NULL; fdata = fdata->next) {
2211 fdata->flags.visited = 0;
2213 g_slist_free(fdata->pfd);
2219 /* We're done filtering the packets; destroy the progress bar if it
2221 if (progbar != NULL)
2222 destroy_progress_dlg(progbar);
2224 /* Unfreeze the packet list. */
2225 if (!add_to_packet_list)
2226 new_packet_list_recreate_visible_rows();
2228 new_packet_list_thaw();
2230 if (selected_frame_num == -1) {
2231 /* The selected frame didn't pass the filter. */
2232 if (selected_frame == NULL) {
2233 /* That's because there *was* no selected frame. Make the first
2234 displayed frame the current frame. */
2235 selected_frame_num = 0;
2237 /* Find the nearest displayed frame to the selected frame (whether
2238 it's before or after that frame) and make that the current frame.
2239 If the next and previous displayed frames are equidistant from the
2240 selected frame, choose the next one. */
2241 g_assert(following_frame == NULL ||
2242 following_frame->num >= selected_frame->num);
2243 g_assert(preceding_frame == NULL ||
2244 preceding_frame->num <= selected_frame->num);
2245 if (following_frame == NULL) {
2246 /* No frame after the selected frame passed the filter, so we
2247 have to select the last displayed frame before the selected
2249 selected_frame_num = preceding_frame_num;
2250 selected_frame = preceding_frame;
2251 } else if (preceding_frame == NULL) {
2252 /* No frame before the selected frame passed the filter, so we
2253 have to select the first displayed frame after the selected
2255 selected_frame_num = following_frame_num;
2256 selected_frame = following_frame;
2258 /* Frames before and after the selected frame passed the filter, so
2259 we'll select the previous frame */
2260 selected_frame_num = preceding_frame_num;
2261 selected_frame = preceding_frame;
2266 if (selected_frame_num == -1) {
2267 /* There are no frames displayed at all. */
2268 cf_unselect_packet(cf);
2270 /* Either the frame that was selected passed the filter, or we've
2271 found the nearest displayed frame to that frame. Select it, make
2272 it the focus row, and make it visible. */
2273 if (selected_frame_num == 0) {
2274 new_packet_list_select_first_row();
2276 new_packet_list_find_row_from_data(selected_frame, TRUE);
2280 /* Cleanup and release all dfilter resources */
2281 if (dfcode != NULL){
2282 dfilter_free(dfcode);
2285 #endif /* NEW_PACKET_LIST */
2287 * Scan trough all frame data and recalculate the ref time
2288 * without rereading the file.
2289 * XXX - do we need a progres bar or is this fast enough?
2291 #ifdef NEW_PACKET_LIST
2293 ref_time_packets(capture_file *cf)
2299 nstime_set_unset(&first_ts);
2300 nstime_set_unset(&prev_dis_ts);
2303 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2305 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2306 /* just add some value here until we know if it is being displayed or not */
2307 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2309 /* If we don't have the time stamp of the first packet in the
2310 capture, it's because this is the first packet. Save the time
2311 stamp of this packet as the time stamp of the first packet. */
2312 if (nstime_is_unset(&first_ts)) {
2313 first_ts = fdata->abs_ts;
2315 /* if this frames is marked as a reference time frame, reset
2316 firstsec and firstusec to this frame */
2317 if(fdata->flags.ref_time){
2318 first_ts = fdata->abs_ts;
2321 /* If we don't have the time stamp of the previous displayed packet,
2322 it's because this is the first displayed packet. Save the time
2323 stamp of this packet as the time stamp of the previous displayed
2325 if (nstime_is_unset(&prev_dis_ts)) {
2326 prev_dis_ts = fdata->abs_ts;
2329 /* Get the time elapsed between the first packet and this packet. */
2330 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2332 /* If it's greater than the current elapsed time, set the elapsed time
2333 to it (we check for "greater than" so as not to be confused by
2334 time moving backwards). */
2335 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2336 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2337 cf->elapsed_time = fdata->rel_ts;
2340 /* Get the time elapsed between the previous displayed packet and
2342 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2344 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2345 /* This frame either passed the display filter list or is marked as
2346 a time reference frame. All time reference frames are displayed
2347 even if they dont pass the display filter */
2348 if(fdata->flags.ref_time){
2349 /* if this was a TIME REF frame we should reset the cul bytes field */
2350 cum_bytes = fdata->pkt_len;
2351 fdata->cum_bytes = cum_bytes;
2353 /* increase cum_bytes with this packets length */
2354 cum_bytes += fdata->pkt_len;
2367 process_specified_packets(capture_file *cf, packet_range_t *range,
2368 const char *string1, const char *string2, gboolean terminate_is_stop,
2369 gboolean (*callback)(capture_file *, frame_data *,
2370 union wtap_pseudo_header *, const guint8 *, void *),
2371 void *callback_args)
2376 union wtap_pseudo_header pseudo_header;
2377 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2378 psp_return_t ret = PSP_FINISHED;
2380 progdlg_t *progbar = NULL;
2383 gboolean progbar_stop_flag;
2384 GTimeVal progbar_start_time;
2385 gchar progbar_status_str[100];
2386 int progbar_nextstep;
2387 int progbar_quantum;
2388 range_process_e process_this;
2390 /* Update the progress bar when it gets to this value. */
2391 progbar_nextstep = 0;
2392 /* When we reach the value that triggers a progress bar update,
2393 bump that value by this amount. */
2394 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2395 /* Count of packets at which we've looked. */
2397 /* Progress so far. */
2400 progbar_stop_flag = FALSE;
2401 g_get_current_time(&progbar_start_time);
2403 packet_range_process_init(range);
2405 /* Iterate through the list of packets, printing the packets that
2406 were selected by the current display filter. */
2407 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2408 /* Create the progress bar if necessary.
2409 We check on every iteration of the loop, so that it takes no
2410 longer than the standard time to create it (otherwise, for a
2411 large file, we might take considerably longer than that standard
2412 time in order to get to the next progress bar step). */
2413 if (progbar == NULL)
2414 progbar = delayed_create_progress_dlg(string1, string2,
2417 &progbar_start_time,
2420 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2421 when we update it, we have to run the GTK+ main loop to get it
2422 to repaint what's pending, and doing so may involve an "ioctl()"
2423 to see if there's any pending input from an X server, and doing
2424 that for every packet can be costly, especially on a big file. */
2425 if (progbar_count >= progbar_nextstep) {
2426 /* let's not divide by zero. I should never be started
2427 * with count == 0, so let's assert that
2429 g_assert(cf->count > 0);
2430 progbar_val = (gfloat) progbar_count / cf->count;
2432 if (progbar != NULL) {
2433 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2434 "%4u of %u packets", progbar_count, cf->count);
2435 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2438 progbar_nextstep += progbar_quantum;
2441 if (progbar_stop_flag) {
2442 /* Well, the user decided to abort the operation. Just stop,
2443 and arrange to return PSP_STOPPED to our caller, so they know
2444 it was stopped explicitly. */
2451 /* do we have to process this packet? */
2452 process_this = packet_range_process_packet(range, fdata);
2453 if (process_this == range_process_next) {
2454 /* this packet uninteresting, continue with next one */
2456 } else if (process_this == range_processing_finished) {
2457 /* all interesting packets processed, stop the loop */
2461 /* Get the packet */
2462 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2463 pd, fdata->cap_len, &err, &err_info)) {
2464 /* Attempt to get the packet failed. */
2465 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2466 cf_read_error_message(err, err_info), cf->filename);
2470 /* Process the packet */
2471 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2472 /* Callback failed. We assume it reported the error appropriately. */
2478 /* We're done printing the packets; destroy the progress bar if
2480 if (progbar != NULL)
2481 destroy_progress_dlg(progbar);
2487 gboolean construct_protocol_tree;
2489 } retap_callback_args_t;
2492 retap_packet(capture_file *cf _U_, frame_data *fdata,
2493 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2496 retap_callback_args_t *args = argsp;
2499 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2500 tap_queue_init(&edt);
2501 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2502 tap_push_tapped_queue(&edt);
2503 epan_dissect_cleanup(&edt);
2509 cf_retap_packets(capture_file *cf)
2511 packet_range_t range;
2512 retap_callback_args_t callback_args;
2513 gboolean filtering_tap_listeners;
2516 /* Do we have any tap listeners with filters? */
2517 filtering_tap_listeners = have_filtering_tap_listeners();
2519 tap_flags = union_of_tap_listener_flags();
2521 /* If any tap listeners have filters, or require the protocol tree,
2522 construct the protocol tree. */
2523 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2524 (tap_flags & TL_REQUIRES_PROTO_TREE);
2526 /* If any tap listeners require the columns, construct them. */
2527 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2529 /* Reset the tap listeners. */
2530 reset_tap_listeners();
2532 /* Iterate through the list of packets, dissecting all packets and
2533 re-running the taps. */
2534 packet_range_init(&range);
2535 packet_range_process_init(&range);
2536 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2537 "all packets", TRUE, retap_packet,
2540 /* Completed successfully. */
2544 /* Well, the user decided to abort the refiltering.
2545 Return CF_READ_ABORTED so our caller knows they did that. */
2546 return CF_READ_ABORTED;
2549 /* Error while retapping. */
2550 return CF_READ_ERROR;
2553 g_assert_not_reached();
2558 print_args_t *print_args;
2559 gboolean print_header_line;
2560 char *header_line_buf;
2561 int header_line_buf_len;
2562 gboolean print_formfeed;
2563 gboolean print_separator;
2567 } print_callback_args_t;
2570 print_packet(capture_file *cf, frame_data *fdata,
2571 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2574 print_callback_args_t *args = argsp;
2581 gboolean proto_tree_needed;
2582 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2583 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2585 /* Create the protocol tree, and make it visible, if we're printing
2586 the dissection or the hex data.
2587 XXX - do we need it if we're just printing the hex data? */
2589 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2590 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2592 /* Fill in the column information if we're printing the summary
2594 if (args->print_args->print_summary) {
2595 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2596 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2598 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2600 if (args->print_formfeed) {
2601 if (!new_page(args->print_args->stream))
2604 if (args->print_separator) {
2605 if (!print_line(args->print_args->stream, 0, ""))
2611 * We generate bookmarks, if the output format supports them.
2612 * The name is "__frameN__".
2614 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2616 if (args->print_args->print_summary) {
2617 if (args->print_header_line) {
2618 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2620 args->print_header_line = FALSE; /* we might not need to print any more */
2622 cp = &args->line_buf[0];
2624 for (i = 0; i < cf->cinfo.num_cols; i++) {
2625 /* Find the length of the string for this column. */
2626 column_len = (int) strlen(cf->cinfo.col_data[i]);
2627 if (args->col_widths[i] > column_len)
2628 column_len = args->col_widths[i];
2630 /* Make sure there's room in the line buffer for the column; if not,
2631 double its length. */
2632 line_len += column_len + 1; /* "+1" for space */
2633 if (line_len > args->line_buf_len) {
2634 cp_off = (int) (cp - args->line_buf);
2635 args->line_buf_len = 2 * line_len;
2636 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2637 cp = args->line_buf + cp_off;
2640 /* Right-justify the packet number column. */
2641 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2642 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2644 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2646 if (i != cf->cinfo.num_cols - 1)
2652 * Generate a bookmark, using the summary line as the title.
2654 if (!print_bookmark(args->print_args->stream, bookmark_name,
2658 if (!print_line(args->print_args->stream, 0, args->line_buf))
2662 * Generate a bookmark, using "Frame N" as the title, as we're not
2663 * printing the summary line.
2665 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2666 if (!print_bookmark(args->print_args->stream, bookmark_name,
2669 } /* if (print_summary) */
2671 if (args->print_args->print_dissections != print_dissections_none) {
2672 if (args->print_args->print_summary) {
2673 /* Separate the summary line from the tree with a blank line. */
2674 if (!print_line(args->print_args->stream, 0, ""))
2678 /* Print the information in that tree. */
2679 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2682 /* Print a blank line if we print anything after this (aka more than one packet). */
2683 args->print_separator = TRUE;
2685 /* Print a header line if we print any more packet summaries */
2686 args->print_header_line = TRUE;
2689 if (args->print_args->print_hex) {
2690 /* Print the full packet data as hex. */
2691 if (!print_hex_data(args->print_args->stream, &edt))
2694 /* Print a blank line if we print anything after this (aka more than one packet). */
2695 args->print_separator = TRUE;
2697 /* Print a header line if we print any more packet summaries */
2698 args->print_header_line = TRUE;
2699 } /* if (args->print_args->print_dissections != print_dissections_none) */
2701 epan_dissect_cleanup(&edt);
2703 /* do we want to have a formfeed between each packet from now on? */
2704 if(args->print_args->print_formfeed) {
2705 args->print_formfeed = TRUE;
2711 epan_dissect_cleanup(&edt);
2716 cf_print_packets(capture_file *cf, print_args_t *print_args)
2719 print_callback_args_t callback_args;
2727 callback_args.print_args = print_args;
2728 callback_args.print_header_line = TRUE;
2729 callback_args.header_line_buf = NULL;
2730 callback_args.header_line_buf_len = 256;
2731 callback_args.print_formfeed = FALSE;
2732 callback_args.print_separator = FALSE;
2733 callback_args.line_buf = NULL;
2734 callback_args.line_buf_len = 256;
2735 callback_args.col_widths = NULL;
2737 if (!print_preamble(print_args->stream, cf->filename)) {
2738 destroy_print_stream(print_args->stream);
2739 return CF_PRINT_WRITE_ERROR;
2742 if (print_args->print_summary) {
2743 /* We're printing packet summaries. Allocate the header line buffer
2744 and get the column widths. */
2745 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2747 /* Find the widths for each of the columns - maximum of the
2748 width of the title and the width of the data - and construct
2749 a buffer with a line containing the column titles. */
2750 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2751 cp = &callback_args.header_line_buf[0];
2753 for (i = 0; i < cf->cinfo.num_cols; i++) {
2754 /* Don't pad the last column. */
2755 if (i == cf->cinfo.num_cols - 1)
2756 callback_args.col_widths[i] = 0;
2758 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2759 data_width = get_column_char_width(get_column_format(i));
2760 if (data_width > callback_args.col_widths[i])
2761 callback_args.col_widths[i] = data_width;
2764 /* Find the length of the string for this column. */
2765 column_len = (int) strlen(cf->cinfo.col_title[i]);
2766 if (callback_args.col_widths[i] > column_len)
2767 column_len = callback_args.col_widths[i];
2769 /* Make sure there's room in the line buffer for the column; if not,
2770 double its length. */
2771 line_len += column_len + 1; /* "+1" for space */
2772 if (line_len > callback_args.header_line_buf_len) {
2773 cp_off = (int) (cp - callback_args.header_line_buf);
2774 callback_args.header_line_buf_len = 2 * line_len;
2775 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2776 callback_args.header_line_buf_len + 1);
2777 cp = callback_args.header_line_buf + cp_off;
2780 /* Right-justify the packet number column. */
2781 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2782 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2784 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2786 if (i != cf->cinfo.num_cols - 1)
2791 /* Now start out the main line buffer with the same length as the
2792 header line buffer. */
2793 callback_args.line_buf_len = callback_args.header_line_buf_len;
2794 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2795 } /* if (print_summary) */
2797 /* Iterate through the list of packets, printing the packets we were
2799 ret = process_specified_packets(cf, &print_args->range, "Printing",
2800 "selected packets", TRUE, print_packet,
2803 g_free(callback_args.header_line_buf);
2804 g_free(callback_args.line_buf);
2805 g_free(callback_args.col_widths);
2810 /* Completed successfully. */
2814 /* Well, the user decided to abort the printing.
2816 XXX - note that what got generated before they did that
2817 will get printed if we're piping to a print program; we'd
2818 have to write to a file and then hand that to the print
2819 program to make it actually not print anything. */
2823 /* Error while printing.
2825 XXX - note that what got generated before they did that
2826 will get printed if we're piping to a print program; we'd
2827 have to write to a file and then hand that to the print
2828 program to make it actually not print anything. */
2829 destroy_print_stream(print_args->stream);
2830 return CF_PRINT_WRITE_ERROR;
2833 if (!print_finale(print_args->stream)) {
2834 destroy_print_stream(print_args->stream);
2835 return CF_PRINT_WRITE_ERROR;
2838 if (!destroy_print_stream(print_args->stream))
2839 return CF_PRINT_WRITE_ERROR;
2845 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2846 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2852 /* Create the protocol tree, but don't fill in the column information. */
2853 epan_dissect_init(&edt, TRUE, TRUE);
2854 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2856 /* Write out the information in that tree. */
2857 proto_tree_write_pdml(&edt, fh);
2859 epan_dissect_cleanup(&edt);
2865 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2870 fh = ws_fopen(print_args->file, "w");
2872 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2874 write_pdml_preamble(fh);
2877 return CF_PRINT_WRITE_ERROR;
2880 /* Iterate through the list of packets, printing the packets we were
2882 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2883 "selected packets", TRUE,
2884 write_pdml_packet, fh);
2889 /* Completed successfully. */
2893 /* Well, the user decided to abort the printing. */
2897 /* Error while printing. */
2899 return CF_PRINT_WRITE_ERROR;
2902 write_pdml_finale(fh);
2905 return CF_PRINT_WRITE_ERROR;
2908 /* XXX - check for an error */
2915 write_psml_packet(capture_file *cf, frame_data *fdata,
2916 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2921 gboolean proto_tree_needed;
2923 /* Fill in the column information, only create the protocol tree
2924 if having custom columns. */
2925 proto_tree_needed = have_custom_cols(&cf->cinfo);
2926 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2927 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2928 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2930 /* Write out the information in that tree. */
2931 proto_tree_write_psml(&edt, fh);
2933 epan_dissect_cleanup(&edt);
2939 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2944 fh = ws_fopen(print_args->file, "w");
2946 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2948 write_psml_preamble(fh);
2951 return CF_PRINT_WRITE_ERROR;
2954 /* Iterate through the list of packets, printing the packets we were
2956 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2957 "selected packets", TRUE,
2958 write_psml_packet, fh);
2963 /* Completed successfully. */
2967 /* Well, the user decided to abort the printing. */
2971 /* Error while printing. */
2973 return CF_PRINT_WRITE_ERROR;
2976 write_psml_finale(fh);
2979 return CF_PRINT_WRITE_ERROR;
2982 /* XXX - check for an error */
2989 write_csv_packet(capture_file *cf, frame_data *fdata,
2990 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2995 gboolean proto_tree_needed;
2997 /* Fill in the column information, only create the protocol tree
2998 if having custom columns. */
2999 proto_tree_needed = have_custom_cols(&cf->cinfo);
3000 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3001 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3002 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3004 /* Write out the information in that tree. */
3005 proto_tree_write_csv(&edt, fh);
3007 epan_dissect_cleanup(&edt);
3013 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3018 fh = ws_fopen(print_args->file, "w");
3020 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3022 write_csv_preamble(fh);
3025 return CF_PRINT_WRITE_ERROR;
3028 /* Iterate through the list of packets, printing the packets we were
3030 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3031 "selected packets", TRUE,
3032 write_csv_packet, fh);
3037 /* Completed successfully. */
3041 /* Well, the user decided to abort the printing. */
3045 /* Error while printing. */
3047 return CF_PRINT_WRITE_ERROR;
3050 write_csv_finale(fh);
3053 return CF_PRINT_WRITE_ERROR;
3056 /* XXX - check for an error */
3063 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3064 union wtap_pseudo_header *pseudo_header _U_,
3065 const guint8 *pd, void *argsp)
3069 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3074 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3079 fh = ws_fopen(print_args->file, "w");
3082 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3084 write_carrays_preamble(fh);
3088 return CF_PRINT_WRITE_ERROR;
3091 /* Iterate through the list of packets, printing the packets we were
3093 ret = process_specified_packets(cf, &print_args->range,
3095 "selected packets", TRUE,
3096 write_carrays_packet, fh);
3099 /* Completed successfully. */
3102 /* Well, the user decided to abort the printing. */
3105 /* Error while printing. */
3107 return CF_PRINT_WRITE_ERROR;
3110 write_carrays_finale(fh);
3114 return CF_PRINT_WRITE_ERROR;
3121 /* Scan through the packet list and change all columns that use the
3122 "command-line-specified" time stamp format to use the current
3123 value of that format. */
3125 cf_change_time_formats(capture_file *cf)
3128 progdlg_t *progbar = NULL;
3134 GTimeVal start_time;
3135 gchar status_str[100];
3136 int progbar_nextstep;
3137 int progbar_quantum;
3138 gboolean sorted_by_frame_column;
3141 /* adjust timestamp precision if auto is selected */
3142 cf_timestamp_auto_precision(cf);
3144 /* Are there any columns with time stamps in the "command-line-specified"
3147 XXX - we have to force the "column is writable" flag on, as it
3148 might be off from the last frame that was dissected. */
3149 col_set_writable(&cf->cinfo, TRUE);
3150 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3151 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3152 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3153 !check_col(&cf->cinfo, COL_REL_TIME) &&
3154 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3155 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3156 /* No, there aren't any columns in that format, so we have no work
3161 /* Freeze the packet list while we redo it, so we don't get any
3162 screen updates while it happens. */
3163 #ifdef NEW_PACKET_LIST
3164 new_packet_list_freeze();
3166 packet_list_freeze();
3169 /* Update the progress bar when it gets to this value. */
3170 progbar_nextstep = 0;
3171 /* When we reach the value that triggers a progress bar update,
3172 bump that value by this amount. */
3173 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3174 /* Count of packets at which we've looked. */
3176 /* Progress so far. */
3179 /* If the rows are currently sorted by the frame column then we know
3180 * the row number of each packet: it's the row number of the previously
3181 * displayed packet + 1.
3183 * Otherwise, if the display is sorted by a different column then we have
3184 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3185 * of changing the time display format O(N**2)).
3187 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3188 * the row number and walks that many elements down the clist to find
3189 * the appropriate element.)
3191 sorted_by_frame_column = FALSE;
3192 for (i = 0; i < cf->cinfo.num_cols; i++) {
3193 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3195 #ifndef NEW_PACKET_LIST
3196 sorted_by_frame_column = (i == packet_list_get_sort_column());
3203 g_get_current_time(&start_time);
3205 /* Iterate through the list of packets, checking whether the packet
3206 is in a row of the summary list and, if so, whether there are
3207 any columns that show the time in the "command-line-specified"
3208 format and, if so, update that row. */
3209 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
3210 /* Create the progress bar if necessary.
3211 We check on every iteration of the loop, so that it takes no
3212 longer than the standard time to create it (otherwise, for a
3213 large file, we might take considerably longer than that standard
3214 time in order to get to the next progress bar step). */
3215 if (progbar == NULL)
3216 progbar = delayed_create_progress_dlg("Changing", "time display",
3217 TRUE, &stop_flag, &start_time, progbar_val);
3219 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3220 when we update it, we have to run the GTK+ main loop to get it
3221 to repaint what's pending, and doing so may involve an "ioctl()"
3222 to see if there's any pending input from an X server, and doing
3223 that for every packet can be costly, especially on a big file. */
3224 if (count >= progbar_nextstep) {
3225 /* let's not divide by zero. I should never be started
3226 * with count == 0, so let's assert that
3228 g_assert(cf->count > 0);
3230 progbar_val = (gfloat) count / cf->count;
3232 if (progbar != NULL) {
3233 g_snprintf(status_str, sizeof(status_str),
3234 "%4u of %u packets", count, cf->count);
3235 update_progress_dlg(progbar, progbar_val, status_str);
3238 progbar_nextstep += progbar_quantum;
3242 /* Well, the user decided to abort the redisplay. Just stop.
3244 XXX - this leaves the time field in the old format in
3245 frames we haven't yet processed. So it goes; should we
3246 simply not offer them the option of stopping? */
3252 /* Find what row this packet is in. */
3253 if (!sorted_by_frame_column) {
3254 /* This function is O(N), so we try to avoid using it... */
3255 #ifdef NEW_PACKET_LIST
3256 row = new_packet_list_find_row_from_data(fdata, FALSE);
3258 row = packet_list_find_row_from_data(fdata);
3261 /* ...which we do by maintaining a count of packets that are
3262 being displayed (i.e., that have passed the display filter),
3263 and using the current value of that count as the row number
3264 (which is why we can only do it when the display is sorted
3265 by the frame number). */
3266 if (fdata->flags.passed_dfilter)
3273 /* This packet is in the summary list, on row "row". */
3275 for (i = 0; i < cf->cinfo.num_cols; i++) {
3276 if (col_has_time_fmt(&cf->cinfo, i)) {
3277 /* This is one of the columns that shows the time in
3278 "command-line-specified" format; update it. */
3279 cf->cinfo.col_buf[i][0] = '\0';
3280 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3281 #ifdef NEW_PACKET_LIST
3283 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3290 /* We're done redisplaying the packets; destroy the progress bar if it
3292 if (progbar != NULL)
3293 destroy_progress_dlg(progbar);
3295 /* Set the column widths of those columns that show the time in
3296 "command-line-specified" format. */
3297 for (i = 0; i < cf->cinfo.num_cols; i++) {
3298 if (col_has_time_fmt(&cf->cinfo, i)) {
3299 #ifdef NEW_PACKET_LIST
3300 new_packet_list_resize_column(i);
3302 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3307 /* Unfreeze the packet list. */
3308 #ifdef NEW_PACKET_LIST
3309 new_packet_list_thaw();
3319 gboolean frame_matched;
3323 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3327 mdata.string = string;
3328 mdata.string_len = strlen(string);
3329 return find_packet(cf, match_protocol_tree, &mdata);
3333 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3335 match_data *mdata = criterion;
3338 /* Construct the protocol tree, including the displayed text */
3339 epan_dissect_init(&edt, TRUE, TRUE);
3340 /* We don't need the column information */
3341 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3343 /* Iterate through all the nodes, seeing if they have text that matches. */
3345 mdata->frame_matched = FALSE;
3346 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3347 epan_dissect_cleanup(&edt);
3348 return mdata->frame_matched;
3352 match_subtree_text(proto_node *node, gpointer data)
3354 match_data *mdata = (match_data*) data;
3355 const gchar *string = mdata->string;
3356 size_t string_len = mdata->string_len;
3357 capture_file *cf = mdata->cf;
3358 field_info *fi = PNODE_FINFO(node);
3359 gchar label_str[ITEM_LABEL_LENGTH];
3366 g_assert(fi && "dissection with an invisible proto tree?");
3368 if (mdata->frame_matched) {
3369 /* We already had a match; don't bother doing any more work. */
3373 /* Don't match invisible entries. */
3374 if (PROTO_ITEM_IS_HIDDEN(node))
3377 /* was a free format label produced? */
3379 label_ptr = fi->rep->representation;
3381 /* no, make a generic label */
3382 label_ptr = label_str;
3383 proto_item_fill_label(fi, label_str);
3386 /* Does that label match? */
3387 label_len = strlen(label_ptr);
3388 for (i = 0; i < label_len; i++) {
3389 c_char = label_ptr[i];
3391 c_char = toupper(c_char);
3392 if (c_char == string[c_match]) {
3394 if (c_match == string_len) {
3395 /* No need to look further; we have a match */
3396 mdata->frame_matched = TRUE;
3403 /* Recurse into the subtree, if it exists */
3404 if (node->first_child != NULL)
3405 proto_tree_children_foreach(node, match_subtree_text, mdata);
3409 cf_find_packet_summary_line(capture_file *cf, const char *string)
3413 mdata.string = string;
3414 mdata.string_len = strlen(string);
3415 return find_packet(cf, match_summary_line, &mdata);
3419 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3421 match_data *mdata = criterion;
3422 const gchar *string = mdata->string;
3423 size_t string_len = mdata->string_len;
3425 const char *info_column;
3426 size_t info_column_len;
3427 gboolean frame_matched = FALSE;
3433 /* Don't bother constructing the protocol tree */
3434 epan_dissect_init(&edt, FALSE, FALSE);
3435 /* Get the column information */
3436 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3438 /* Find the Info column */
3439 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3440 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3441 /* Found it. See if we match. */
3442 info_column = edt.pi.cinfo->col_data[colx];
3443 info_column_len = strlen(info_column);
3444 for (i = 0; i < info_column_len; i++) {
3445 c_char = info_column[i];
3447 c_char = toupper(c_char);
3448 if (c_char == string[c_match]) {
3450 if (c_match == string_len) {
3451 frame_matched = TRUE;
3460 epan_dissect_cleanup(&edt);
3461 return frame_matched;
3467 } cbs_t; /* "Counted byte string" */
3470 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3475 info.data_len = string_size;
3477 /* String or hex search? */
3479 /* String search - what type of string? */
3480 switch (cf->scs_type) {
3482 case SCS_ASCII_AND_UNICODE:
3483 return find_packet(cf, match_ascii_and_unicode, &info);
3486 return find_packet(cf, match_ascii, &info);
3489 return find_packet(cf, match_unicode, &info);
3492 g_assert_not_reached();
3496 return find_packet(cf, match_binary, &info);
3500 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3502 cbs_t *info = criterion;
3503 const guint8 *ascii_text = info->data;
3504 size_t textlen = info->data_len;
3505 gboolean frame_matched;
3511 frame_matched = FALSE;
3512 buf_len = fdata->pkt_len;
3513 for (i = 0; i < buf_len; i++) {
3516 c_char = toupper(c_char);
3518 if (c_char == ascii_text[c_match]) {
3520 if (c_match == textlen) {
3521 frame_matched = TRUE;
3522 cf->search_pos = i; /* Save the position of the last character
3523 for highlighting the field. */
3530 return frame_matched;
3534 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3536 cbs_t *info = criterion;
3537 const guint8 *ascii_text = info->data;
3538 size_t textlen = info->data_len;
3539 gboolean frame_matched;
3545 frame_matched = FALSE;
3546 buf_len = fdata->pkt_len;
3547 for (i = 0; i < buf_len; i++) {
3550 c_char = toupper(c_char);
3551 if (c_char == ascii_text[c_match]) {
3553 if (c_match == textlen) {
3554 frame_matched = TRUE;
3555 cf->search_pos = i; /* Save the position of the last character
3556 for highlighting the field. */
3562 return frame_matched;
3566 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3568 cbs_t *info = criterion;
3569 const guint8 *ascii_text = info->data;
3570 size_t textlen = info->data_len;
3571 gboolean frame_matched;
3577 frame_matched = FALSE;
3578 buf_len = fdata->pkt_len;
3579 for (i = 0; i < buf_len; i++) {
3582 c_char = toupper(c_char);
3583 if (c_char == ascii_text[c_match]) {
3586 if (c_match == textlen) {
3587 frame_matched = TRUE;
3588 cf->search_pos = i; /* Save the position of the last character
3589 for highlighting the field. */
3595 return frame_matched;
3599 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3601 cbs_t *info = criterion;
3602 const guint8 *binary_data = info->data;
3603 size_t datalen = info->data_len;
3604 gboolean frame_matched;
3609 frame_matched = FALSE;
3610 buf_len = fdata->pkt_len;
3611 for (i = 0; i < buf_len; i++) {
3612 if (cf->pd[i] == binary_data[c_match]) {
3614 if (c_match == datalen) {
3615 frame_matched = TRUE;
3616 cf->search_pos = i; /* Save the position of the last character
3617 for highlighting the field. */
3623 return frame_matched;
3627 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3629 return find_packet(cf, match_dfilter, sfcode);
3633 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3635 dfilter_t *sfcode = criterion;
3637 gboolean frame_matched;
3639 epan_dissect_init(&edt, TRUE, FALSE);
3640 epan_dissect_prime_dfilter(&edt, sfcode);
3641 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3642 frame_matched = dfilter_apply_edt(sfcode, &edt);
3643 epan_dissect_cleanup(&edt);
3644 return frame_matched;
3648 find_packet(capture_file *cf,
3649 gboolean (*match_function)(capture_file *, frame_data *, void *),
3652 frame_data *start_fd;
3654 frame_data *new_fd = NULL;
3655 progdlg_t *progbar = NULL;
3662 GTimeVal start_time;
3663 gchar status_str[100];
3664 int progbar_nextstep;
3665 int progbar_quantum;
3668 start_fd = cf->current_frame;
3669 if (start_fd != NULL) {
3670 /* Iterate through the list of packets, starting at the packet we've
3671 picked, calling a routine to run the filter on the packet, see if
3672 it matches, and stop if so. */
3676 /* Update the progress bar when it gets to this value. */
3677 progbar_nextstep = 0;
3678 /* When we reach the value that triggers a progress bar update,
3679 bump that value by this amount. */
3680 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3681 /* Progress so far. */
3685 g_get_current_time(&start_time);
3688 title = cf->sfilter?cf->sfilter:"";
3690 /* Create the progress bar if necessary.
3691 We check on every iteration of the loop, so that it takes no
3692 longer than the standard time to create it (otherwise, for a
3693 large file, we might take considerably longer than that standard
3694 time in order to get to the next progress bar step). */
3695 if (progbar == NULL)
3696 progbar = delayed_create_progress_dlg("Searching", title,
3697 FALSE, &stop_flag, &start_time, progbar_val);
3699 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3700 when we update it, we have to run the GTK+ main loop to get it
3701 to repaint what's pending, and doing so may involve an "ioctl()"
3702 to see if there's any pending input from an X server, and doing
3703 that for every packet can be costly, especially on a big file. */
3704 if (count >= progbar_nextstep) {
3705 /* let's not divide by zero. I should never be started
3706 * with count == 0, so let's assert that
3708 g_assert(cf->count > 0);
3710 progbar_val = (gfloat) count / cf->count;
3712 if (progbar != NULL) {
3713 g_snprintf(status_str, sizeof(status_str),
3714 "%4u of %u packets", count, cf->count);
3715 update_progress_dlg(progbar, progbar_val, status_str);
3718 progbar_nextstep += progbar_quantum;
3722 /* Well, the user decided to abort the search. Go back to the
3723 frame where we started. */
3728 /* Go past the current frame. */
3729 if (cf->sbackward) {
3730 /* Go on to the previous frame. */
3731 fdata = fdata->prev;
3732 if (fdata == NULL) {
3734 * XXX - other apps have a bit more of a detailed message
3735 * for this, and instead of offering "OK" and "Cancel",
3736 * they offer things such as "Continue" and "Cancel";
3737 * we need an API for popping up alert boxes with
3738 * {Verb} and "Cancel".
3741 if (prefs.gui_find_wrap)
3743 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3744 "%sBeginning of capture exceeded!%s\n\n"
3745 "Search is continued from the end of the capture.",
3746 simple_dialog_primary_start(), simple_dialog_primary_end());
3747 fdata = cf->plist_end; /* wrap around */
3751 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3752 "%sBeginning of capture exceeded!%s\n\n"
3753 "Try searching forwards.",
3754 simple_dialog_primary_start(), simple_dialog_primary_end());
3755 fdata = start_fd; /* stay on previous packet */
3759 /* Go on to the next frame. */
3760 fdata = fdata->next;
3761 if (fdata == NULL) {
3762 if (prefs.gui_find_wrap)
3764 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3765 "%sEnd of capture exceeded!%s\n\n"
3766 "Search is continued from the start of the capture.",
3767 simple_dialog_primary_start(), simple_dialog_primary_end());
3768 fdata = cf->plist; /* wrap around */
3772 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3773 "%sEnd of capture exceeded!%s\n\n"
3774 "Try searching backwards.",
3775 simple_dialog_primary_start(), simple_dialog_primary_end());
3776 fdata = start_fd; /* stay on previous packet */
3783 /* Is this packet in the display? */
3784 if (fdata->flags.passed_dfilter) {
3785 /* Yes. Load its data. */
3786 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3787 cf->pd, fdata->cap_len, &err, &err_info)) {
3788 /* Read error. Report the error, and go back to the frame
3789 where we started. */
3790 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3791 cf_read_error_message(err, err_info), cf->filename);
3796 /* Does it match the search criterion? */
3797 if ((*match_function)(cf, fdata, criterion)) {
3799 break; /* found it! */
3803 if (fdata == start_fd) {
3804 /* We're back to the frame we were on originally, and that frame
3805 doesn't match the search filter. The search failed. */
3810 /* We're done scanning the packets; destroy the progress bar if it
3812 if (progbar != NULL)
3813 destroy_progress_dlg(progbar);
3816 if (new_fd != NULL) {
3817 #ifdef NEW_PACKET_LIST
3818 /* Find and select */
3819 row = new_packet_list_find_row_from_data(fdata, TRUE);
3821 /* We found a frame. Find what row it's in. */
3822 row = packet_list_find_row_from_data(new_fd);
3823 #endif /* NEW_PACKET_LIST */
3825 /* We didn't find a row even though we know that a frame
3826 * exists that satifies the search criteria. This means that the
3827 * frame isn't being displayed currently so we can't select it. */
3828 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3829 "%sEnd of capture exceeded!%s\n\n"
3830 "The capture file is probably not fully loaded.",
3831 simple_dialog_primary_start(), simple_dialog_primary_end());
3835 #ifndef NEW_PACKET_LIST
3836 /* Select that row, make it the focus row, and make it visible. */
3837 packet_list_set_selected_row(row);
3838 #endif /* NEW_PACKET_LIST */
3839 return TRUE; /* success */
3841 return FALSE; /* failure */
3845 cf_goto_frame(capture_file *cf, guint fnumber)
3850 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3853 if (fdata == NULL) {
3854 /* we didn't find a packet with that packet number */
3855 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3856 "There is no packet with the packet number %u.", fnumber);
3857 return FALSE; /* we failed to go to that packet */
3859 if (!fdata->flags.passed_dfilter) {
3860 /* that packet currently isn't displayed */
3861 /* XXX - add it to the set of displayed packets? */
3862 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3863 "The packet number %u isn't currently being displayed.", fnumber);
3864 return FALSE; /* we failed to go to that packet */
3867 #ifdef NEW_PACKET_LIST
3868 row = new_packet_list_find_row_from_data(fdata, TRUE);
3870 /* We found that packet, and it's currently being displayed.
3871 Find what row it's in. */
3872 row = packet_list_find_row_from_data(fdata);
3873 g_assert(row != -1);
3875 /* Select that row, make it the focus row, and make it visible. */
3876 packet_list_set_selected_row(row);
3877 #endif /* NEW_PACKET_LIST */
3878 return TRUE; /* we got to that packet */
3882 cf_goto_top_frame(capture_file *cf _U_)
3884 #ifdef NEW_PACKET_LIST
3885 /* Find and select */
3886 new_packet_list_select_first_row();
3890 frame_data *lowest_fdata = NULL;
3892 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3893 if (fdata->flags.passed_dfilter) {
3894 lowest_fdata = fdata;
3899 if (lowest_fdata == NULL) {
3903 /* We found that packet, and it's currently being displayed.
3904 Find what row it's in. */
3905 row = packet_list_find_row_from_data(lowest_fdata);
3906 g_assert(row != -1);
3908 /* Select that row, make it the focus row, and make it visible. */
3909 packet_list_set_selected_row(row);
3910 #endif /* NEW_PACKET_LIST */
3911 return TRUE; /* we got to that packet */
3915 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
3917 #ifdef NEW_PACKET_LIST
3918 /* Find and select */
3919 new_packet_list_select_last_row();
3923 frame_data *highest_fdata = NULL;
3925 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3926 if (fdata->flags.passed_dfilter) {
3927 highest_fdata = fdata;
3931 if (highest_fdata == NULL) {
3935 /* We found that packet, and it's currently being displayed.
3936 Find what row it's in. */
3937 row = packet_list_find_row_from_data(highest_fdata);
3938 g_assert(row != -1);
3940 /* Select that row, make it the focus row, and make it visible. */
3941 packet_list_set_selected_row(row);
3942 #endif /* NEW_PACKET_LIST */
3943 return TRUE; /* we got to that packet */
3947 * Go to frame specified by currently selected protocol tree item.
3950 cf_goto_framenum(capture_file *cf)
3952 header_field_info *hfinfo;
3955 if (cf->finfo_selected) {
3956 hfinfo = cf->finfo_selected->hfinfo;
3958 if (hfinfo->type == FT_FRAMENUM) {
3959 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3961 return cf_goto_frame(cf, framenum);
3968 /* Select the packet on a given row. */
3970 cf_select_packet(capture_file *cf, int row)
3976 /* Get the frame data struct pointer for this frame */
3977 #ifdef NEW_PACKET_LIST
3978 fdata = new_packet_list_get_row_data(row);
3980 fdata = (frame_data *)packet_list_get_row_data(row);
3983 if (fdata == NULL) {
3984 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3985 the first entry is added to it by "real_insert_row()", that row
3986 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3987 our version and the vanilla GTK+ version).
3989 This means that a "select-row" signal is emitted; this causes
3990 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3993 "cf_select_packet()" fetches, above, the data associated with the
3994 row that was selected; however, as "gtk_clist_append()", which
3995 called "real_insert_row()", hasn't yet returned, we haven't yet
3996 associated any data with that row, so we get back a null pointer.
3998 We can't assume that there's only one frame in the frame list,
3999 either, as we may be filtering the display.
4001 We therefore assume that, if "row" is 0, i.e. the first row
4002 is being selected, and "cf->first_displayed" equals
4003 "cf->last_displayed", i.e. there's only one frame being
4004 displayed, that frame is the frame we want.
4006 This means we have to set "cf->first_displayed" and
4007 "cf->last_displayed" before adding the row to the
4008 GtkCList; see the comment in "add_packet_to_packet_list()". */
4010 if (row == 0 && cf->first_displayed == cf->last_displayed)
4011 fdata = cf->first_displayed;
4014 /* If fdata _still_ isn't set simply give up. */
4015 if (fdata == NULL) {
4019 /* Get the data in that frame. */
4020 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
4021 cf->pd, fdata->cap_len, &err, &err_info)) {
4022 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4023 cf_read_error_message(err, err_info), cf->filename);
4027 /* Record that this frame is the current frame. */
4028 cf->current_frame = fdata;
4029 cf->current_row = row;
4031 /* Create the logical protocol tree. */
4032 if (cf->edt != NULL)
4033 epan_dissect_free(cf->edt);
4035 /* We don't need the columns here. */
4036 cf->edt = epan_dissect_new(TRUE, TRUE);
4038 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4041 dfilter_macro_build_ftv_cache(cf->edt->tree);
4043 cf_callback_invoke(cf_cb_packet_selected, cf);
4046 /* Unselect the selected packet, if any. */
4048 cf_unselect_packet(capture_file *cf)
4050 /* Destroy the epan_dissect_t for the unselected packet. */
4051 if (cf->edt != NULL) {
4052 epan_dissect_free(cf->edt);
4056 /* No packet is selected. */
4057 cf->current_frame = NULL;
4058 cf->current_row = 0;
4060 cf_callback_invoke(cf_cb_packet_unselected, cf);
4062 /* No protocol tree means no selected field. */
4063 cf_unselect_field(cf);
4066 /* Unset the selected protocol tree field, if any. */
4068 cf_unselect_field(capture_file *cf)
4070 cf->finfo_selected = NULL;
4072 cf_callback_invoke(cf_cb_field_unselected, cf);
4076 * Mark a particular frame.
4079 cf_mark_frame(capture_file *cf, frame_data *frame)
4081 if (! frame->flags.marked) {
4082 frame->flags.marked = TRUE;
4083 if (cf->count > cf->marked_count)
4089 * Unmark a particular frame.
4092 cf_unmark_frame(capture_file *cf, frame_data *frame)
4094 if (frame->flags.marked) {
4095 frame->flags.marked = FALSE;
4096 if (cf->marked_count > 0)
4104 } save_callback_args_t;
4107 * Save a capture to a file, in a particular format, saving either
4108 * all packets, all currently-displayed packets, or all marked packets.
4110 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4111 * up a message box for the failure.
4114 save_packet(capture_file *cf _U_, frame_data *fdata,
4115 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4118 save_callback_args_t *args = argsp;
4119 struct wtap_pkthdr hdr;
4122 /* init the wtap header for saving */
4123 hdr.ts.secs = fdata->abs_ts.secs;
4124 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4125 hdr.caplen = fdata->cap_len;
4126 hdr.len = fdata->pkt_len;
4127 hdr.pkt_encap = fdata->lnk_t;
4129 /* and save the packet */
4130 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4131 cf_write_failure_alert_box(args->fname, err);
4138 * Can this capture file be saved in any format except by copying the raw data?
4141 cf_can_save_as(capture_file *cf)
4145 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4146 /* To save a file with Wiretap, Wiretap has to handle that format,
4147 and its code to handle that format must be able to write a file
4148 with this file's encapsulation type. */
4149 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4150 /* OK, we can write it out in this type. */
4155 /* No, we couldn't save it in any format. */
4160 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4162 gchar *from_filename;
4166 save_callback_args_t callback_args;
4168 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
4170 /* don't write over an existing file. */
4171 /* this should've been already checked by our caller, just to be sure... */
4172 if (file_exists(fname)) {
4173 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4174 "%sCapture file: \"%s\" already exists!%s\n\n"
4175 "Please choose a different filename.",
4176 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4180 packet_range_process_init(range);
4183 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4184 /* We're not filtering packets, and we're saving it in the format
4185 it's already in, so we can just move or copy the raw data. */
4187 if (cf->is_tempfile) {
4188 /* The file being saved is a temporary file from a live
4189 capture, so it doesn't need to stay around under that name;
4190 first, try renaming the capture buffer file to the new name. */
4192 if (ws_rename(cf->filename, fname) == 0) {
4193 /* That succeeded - there's no need to copy the source file. */
4194 from_filename = NULL;
4197 if (errno == EXDEV) {
4198 /* They're on different file systems, so we have to copy the
4201 from_filename = cf->filename;
4203 /* The rename failed, but not because they're on different
4204 file systems - put up an error message. (Or should we
4205 just punt and try to copy? The only reason why I'd
4206 expect the rename to fail and the copy to succeed would
4207 be if we didn't have permission to remove the file from
4208 the temporary directory, and that might be fixable - but
4209 is it worth requiring the user to go off and fix it?) */
4210 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4211 file_rename_error_message(errno), fname);
4217 from_filename = cf->filename;
4220 /* It's a permanent file, so we should copy it, and not remove the
4223 from_filename = cf->filename;
4227 /* Copy the file, if we haven't moved it. */
4228 if (!copy_file_binary_mode(from_filename, fname))
4232 /* Either we're filtering packets, or we're saving in a different
4233 format; we can't do that by copying or moving the capture file,
4234 we have to do it by writing the packets out in Wiretap. */
4235 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4238 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4242 /* XXX - we let the user save a subset of the packets.
4244 If we do that, should we make that file the current file? If so,
4245 it means we can no longer get at the other packets. What does
4248 /* Iterate through the list of packets, processing the packets we were
4251 XXX - we've already called "packet_range_process_init(range)", but
4252 "process_specified_packets()" will do it again. Fortunately,
4253 that's harmless in this case, as we haven't done anything to
4254 "range" since we initialized it. */
4255 callback_args.pdh = pdh;
4256 callback_args.fname = fname;
4257 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4258 TRUE, save_packet, &callback_args)) {
4261 /* Completed successfully. */
4265 /* The user decided to abort the saving.
4266 XXX - remove the output file? */
4270 /* Error while saving. */
4271 wtap_dump_close(pdh, &err);
4275 if (!wtap_dump_close(pdh, &err)) {
4276 cf_close_failure_alert_box(fname, err);
4281 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
4283 if (packet_range_process_all(range)) {
4284 /* We saved the entire capture, not just some packets from it.
4285 Open and read the file we saved it to.
4287 XXX - this is somewhat of a waste; we already have the
4288 packets, all this gets us is updated file type information
4289 (which we could just stuff into "cf"), and having the new
4290 file be the one we have opened and from which we're reading
4291 the data, and it means we have to spend time opening and
4292 reading the file, which could be a significant amount of
4293 time if the file is large. */
4294 cf->user_saved = TRUE;
4296 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4297 /* XXX - report errors if this fails?
4298 What should we return if it fails or is aborted? */
4299 switch (cf_read(cf)) {
4303 /* Just because we got an error, that doesn't mean we were unable
4304 to read any of the file; we handle what we could get from the
4308 case CF_READ_ABORTED:
4309 /* The user bailed out of re-reading the capture file; the
4310 capture file has been closed - just return (without
4311 changing any menu settings; "cf_close()" set them
4312 correctly for the "no capture file open" state). */
4315 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4321 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4326 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4327 gboolean for_writing, int file_type)
4330 /* Wiretap error. */
4333 case WTAP_ERR_NOT_REGULAR_FILE:
4334 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4335 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4339 case WTAP_ERR_RANDOM_OPEN_PIPE:
4340 /* Seen only when opening a capture file for reading. */
4341 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4342 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4346 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4347 /* Seen only when opening a capture file for reading. */
4348 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4349 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4353 case WTAP_ERR_UNSUPPORTED:
4354 /* Seen only when opening a capture file for reading. */
4355 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4356 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4358 filename, err_info);
4362 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4363 /* Seen only when opening a capture file for writing. */
4364 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4365 "The file \"%s\" is a pipe, and %s capture files can't be "
4366 "written to a pipe.",
4367 filename, wtap_file_type_string(file_type));
4370 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4371 /* Seen only when opening a capture file for writing. */
4372 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4373 "Wireshark doesn't support writing capture files in that format.");
4376 case WTAP_ERR_UNSUPPORTED_ENCAP:
4378 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4379 "Wireshark can't save this capture in that format.");
4381 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4382 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4384 filename, err_info);
4389 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4391 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4392 "Wireshark can't save this capture in that format.");
4394 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4395 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4400 case WTAP_ERR_BAD_RECORD:
4401 /* Seen only when opening a capture file for reading. */
4402 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4403 "The file \"%s\" appears to be damaged or corrupt.\n"
4405 filename, err_info);
4409 case WTAP_ERR_CANT_OPEN:
4411 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4412 "The file \"%s\" could not be created for some unknown reason.",
4415 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4416 "The file \"%s\" could not be opened for some unknown reason.",
4421 case WTAP_ERR_SHORT_READ:
4422 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4423 "The file \"%s\" appears to have been cut short"
4424 " in the middle of a packet or other data.",
4428 case WTAP_ERR_SHORT_WRITE:
4429 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4430 "A full header couldn't be written to the file \"%s\".",
4434 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4435 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4436 "Gzip compression not supported by this file type.");
4440 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4441 "The file \"%s\" could not be %s: %s.",
4443 for_writing ? "created" : "opened",
4444 wtap_strerror(err));
4449 open_failure_alert_box(filename, err, for_writing);
4454 file_rename_error_message(int err)
4457 static char errmsg_errno[1024+1];
4462 errmsg = "The path to the file \"%s\" doesn't exist.";
4466 errmsg = "You don't have permission to move the capture file to \"%s\".";
4470 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4471 "The file \"%%s\" could not be moved: %s.",
4472 wtap_strerror(err));
4473 errmsg = errmsg_errno;
4480 cf_read_error_message(int err, gchar *err_info)
4482 static char errmsg_errno[1024+1];
4486 case WTAP_ERR_UNSUPPORTED_ENCAP:
4487 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4488 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4493 case WTAP_ERR_BAD_RECORD:
4494 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4495 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4496 wtap_strerror(err), err_info);
4501 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4502 "An error occurred while reading from the file \"%%s\": %s.",
4503 wtap_strerror(err));
4506 return errmsg_errno;
4510 cf_write_failure_alert_box(const char *filename, int err)
4513 /* Wiretap error. */
4514 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4515 "An error occurred while writing to the file \"%s\": %s.",
4516 filename, wtap_strerror(err));
4519 write_failure_alert_box(filename, err);
4523 /* Check for write errors - if the file is being written to an NFS server,
4524 a write error may not show up until the file is closed, as NFS clients
4525 might not send writes to the server until the "write()" call finishes,
4526 so that the write may fail on the server but the "write()" may succeed. */
4528 cf_close_failure_alert_box(const char *filename, int err)
4531 /* Wiretap error. */
4534 case WTAP_ERR_CANT_CLOSE:
4535 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4536 "The file \"%s\" couldn't be closed for some unknown reason.",
4540 case WTAP_ERR_SHORT_WRITE:
4541 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4542 "Not all the packets could be written to the file \"%s\".",
4547 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4548 "An error occurred while closing the file \"%s\": %s.",
4549 filename, wtap_strerror(err));
4554 We assume that a close error from the OS is really a write error. */
4555 write_failure_alert_box(filename, err);
4559 /* Reload the current capture file. */
4561 cf_reload(capture_file *cf) {
4563 gboolean is_tempfile;
4566 /* If the file could be opened, "cf_open()" calls "cf_close()"
4567 to get rid of state for the old capture file before filling in state
4568 for the new capture file. "cf_close()" will remove the file if
4569 it's a temporary file; we don't want that to happen (for one thing,
4570 it'd prevent subsequent reopens from working). Remember whether it's
4571 a temporary file, mark it as not being a temporary file, and then
4572 reopen it as the type of file it was.
4574 Also, "cf_close()" will free "cf->filename", so we must make
4575 a copy of it first. */
4576 filename = g_strdup(cf->filename);
4577 is_tempfile = cf->is_tempfile;
4578 cf->is_tempfile = FALSE;
4579 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4580 switch (cf_read(cf)) {
4584 /* Just because we got an error, that doesn't mean we were unable
4585 to read any of the file; we handle what we could get from the
4589 case CF_READ_ABORTED:
4590 /* The user bailed out of re-reading the capture file; the
4591 capture file has been closed - just free the capture file name
4592 string and return (without changing the last containing
4598 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4599 Instead, the file was left open, so we should restore "cf->is_tempfile"
4602 XXX - change the menu? Presumably "cf_open()" will do that;
4603 make sure it does! */
4604 cf->is_tempfile = is_tempfile;
4606 /* "cf_open()" made a copy of the file name we handed it, so
4607 we should free up our copy. */