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 #ifdef NEED_STRERROR_H
50 #include <epan/epan.h>
51 #include <epan/filesystem.h>
54 #include "color_filters.h"
55 #include <epan/column.h>
56 #include <epan/packet.h>
57 #include "packet-range.h"
63 #include "alert_box.h"
64 #include "simple_dialog.h"
65 #include "progress_dlg.h"
67 #include <epan/prefs.h>
68 #include <epan/dfilter/dfilter.h>
69 #include <epan/conversation.h>
70 #include <epan/epan_dissect.h>
72 #include "stat_menu.h"
73 #include "tap_dfilter_dlg.h"
74 #include <epan/dissectors/packet-data.h>
75 #include <epan/timestamp.h>
76 #include "file_util.h"
81 gboolean auto_scroll_live;
84 static nstime_t first_ts;
85 static nstime_t prev_ts;
86 static guint32 cum_bytes = 0;
88 static void cf_reset_state(capture_file *cf);
90 static int read_packet(capture_file *cf, dfilter_t *dfcode, gint64 offset);
92 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
93 gboolean refilter, gboolean redissect);
95 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
97 static void match_subtree_text(proto_node *node, gpointer data);
98 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
100 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
102 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
104 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
106 static gboolean match_binary(capture_file *cf, frame_data *fdata,
108 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
110 static gboolean find_packet(capture_file *cf,
111 gboolean (*match_function)(capture_file *, frame_data *, void *),
114 static void cf_open_failure_alert_box(const char *filename, int err,
115 gchar *err_info, gboolean for_writing,
117 static const char *file_rename_error_message(int err);
118 static void cf_write_failure_alert_box(const char *filename, int err);
119 static void cf_close_failure_alert_box(const char *filename, int err);
120 static gboolean copy_binary_file(const char *from_filename, const char *to_filename);
122 /* Update the progress bar this many times when reading a file. */
123 #define N_PROGBAR_UPDATES 100
125 /* Number of "frame_data" structures per memory chunk.
126 XXX - is this the right number? */
127 #define FRAME_DATA_CHUNK_SIZE 1024
130 /* one callback for now, we could have a list later */
131 static cf_callback_t cf_cb = NULL;
132 static gpointer cf_cb_user_data = NULL;
135 cf_callback_invoke(int event, gpointer data)
137 g_assert(cf_cb != NULL);
138 cf_cb(event, data, cf_cb_user_data);
143 cf_callback_add(cf_callback_t func, gpointer user_data)
145 /* More than one callback listener is currently not implemented,
146 but should be easy to do. */
147 g_assert(cf_cb == NULL);
149 cf_cb_user_data = user_data;
153 cf_callback_remove(cf_callback_t func _U_)
155 g_assert(cf_cb != NULL);
157 cf_cb_user_data = NULL;
161 cf_timestamp_auto_precision(capture_file *cf)
163 int prec = timestamp_get_precision();
166 /* don't try to get the file's precision if none is opened */
167 if(cf->state == FILE_CLOSED) {
171 /* if we are in auto mode, set precision of current file */
172 if(prec == TS_PREC_AUTO ||
173 prec == TS_PREC_AUTO_SEC ||
174 prec == TS_PREC_AUTO_DSEC ||
175 prec == TS_PREC_AUTO_CSEC ||
176 prec == TS_PREC_AUTO_MSEC ||
177 prec == TS_PREC_AUTO_USEC ||
178 prec == TS_PREC_AUTO_NSEC)
180 switch(wtap_file_tsprecision(cf->wth)) {
181 case(WTAP_FILE_TSPREC_SEC):
182 timestamp_set_precision(TS_PREC_AUTO_SEC);
184 case(WTAP_FILE_TSPREC_DSEC):
185 timestamp_set_precision(TS_PREC_AUTO_DSEC);
187 case(WTAP_FILE_TSPREC_CSEC):
188 timestamp_set_precision(TS_PREC_AUTO_CSEC);
190 case(WTAP_FILE_TSPREC_MSEC):
191 timestamp_set_precision(TS_PREC_AUTO_MSEC);
193 case(WTAP_FILE_TSPREC_USEC):
194 timestamp_set_precision(TS_PREC_AUTO_USEC);
196 case(WTAP_FILE_TSPREC_NSEC):
197 timestamp_set_precision(TS_PREC_AUTO_NSEC);
200 g_assert_not_reached();
207 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
212 wth = wtap_open_offline(fname, err, &err_info, TRUE);
216 /* The open succeeded. Close whatever capture file we had open,
217 and fill in the information for this file. */
220 /* Initialize all data structures used for dissection. */
223 /* We're about to start reading the file. */
224 cf->state = FILE_READ_IN_PROGRESS;
229 /* Set the file name because we need it to set the follow stream filter.
230 XXX - is that still true? We need it for other reasons, though,
232 cf->filename = g_strdup(fname);
234 /* Indicate whether it's a permanent or temporary file. */
235 cf->is_tempfile = is_tempfile;
237 /* If it's a temporary capture buffer file, mark it as not saved. */
238 cf->user_saved = !is_tempfile;
240 cf->cd_t = wtap_file_type(cf->wth);
242 cf->displayed_count = 0;
243 cf->marked_count = 0;
244 cf->drops_known = FALSE;
246 cf->snap = wtap_snapshot_length(cf->wth);
248 /* Snapshot length not known. */
249 cf->has_snap = FALSE;
250 cf->snap = WTAP_MAX_PACKET_SIZE;
253 nstime_set_zero(&cf->elapsed_time);
254 nstime_set_zero(&first_ts);
255 nstime_set_zero(&prev_ts);
257 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
259 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
261 g_assert(cf->plist_chunk);
263 /* change the time formats now, as we might have a new precision */
264 cf_change_time_formats(cf);
266 fileset_file_opened(fname);
271 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
277 * Reset the state for the currently closed file, but don't do the
278 * UI callbacks; this is for use in "cf_open()", where we don't
279 * want the UI to go from "file open" to "file closed" back to
280 * "file open", we want it to go from "old file open" to "new file
281 * open and being read".
284 cf_reset_state(capture_file *cf)
286 /* Die if we're in the middle of reading a file. */
287 g_assert(cf->state != FILE_READ_IN_PROGRESS);
293 /* We have no file open... */
294 if (cf->filename != NULL) {
295 /* If it's a temporary file, remove it. */
297 eth_unlink(cf->filename);
298 g_free(cf->filename);
301 /* ...which means we have nothing to save. */
302 cf->user_saved = FALSE;
304 if (cf->plist_chunk != NULL) {
305 g_mem_chunk_destroy(cf->plist_chunk);
306 cf->plist_chunk = NULL;
308 if (cf->rfcode != NULL) {
309 dfilter_free(cf->rfcode);
313 cf->plist_end = NULL;
314 cf_unselect_packet(cf); /* nothing to select */
315 cf->first_displayed = NULL;
316 cf->last_displayed = NULL;
318 /* No frame selected, no field in that frame selected. */
319 cf->current_frame = NULL;
320 cf->finfo_selected = NULL;
322 /* Clear the packet list. */
323 packet_list_freeze();
329 nstime_set_zero(&cf->elapsed_time);
331 reset_tap_listeners();
333 /* We have no file open. */
334 cf->state = FILE_CLOSED;
336 fileset_file_closed();
339 /* Reset everything to a pristine state */
341 cf_close(capture_file *cf)
343 /* do GUI things even if file is already closed,
344 * e.g. to cleanup things if a capture couldn't be started */
345 cf_callback_invoke(cf_cb_file_closing, cf);
347 /* close things, if not already closed before */
348 if(cf->state != FILE_CLOSED) {
350 color_filters_cleanup();
354 cleanup_dissection();
357 cf_callback_invoke(cf_cb_file_closed, cf);
361 cf_read(capture_file *cf)
365 const gchar *name_ptr;
367 char errmsg_errno[1024+1];
368 gchar err_str[2048+1];
370 progdlg_t *progbar = NULL;
372 gint64 size, file_pos;
375 gchar status_str[100];
376 gint64 progbar_nextstep;
377 gint64 progbar_quantum;
380 /* Compile the current display filter.
381 * We assume this will not fail since cf->dfilter is only set in
382 * cf_filter IFF the filter was valid.
386 dfilter_compile(cf->dfilter, &dfcode);
391 reset_tap_listeners();
392 tap_dfilter_dlg_update();
394 cf_callback_invoke(cf_cb_file_read_start, cf);
396 name_ptr = get_basename(cf->filename);
398 /* Find the size of the file. */
399 size = wtap_file_size(cf->wth, NULL);
401 /* Update the progress bar when it gets to this value. */
402 progbar_nextstep = 0;
403 /* When we reach the value that triggers a progress bar update,
404 bump that value by this amount. */
406 progbar_quantum = size/N_PROGBAR_UPDATES;
409 /* Progress so far. */
412 packet_list_freeze();
415 g_get_current_time(&start_time);
417 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
419 /* Create the progress bar if necessary.
420 We check on every iteration of the loop, so that it takes no
421 longer than the standard time to create it (otherwise, for a
422 large file, we might take considerably longer than that standard
423 time in order to get to the next progress bar step). */
424 if (progbar == NULL) {
425 progbar = delayed_create_progress_dlg("Loading", name_ptr,
426 TRUE, &stop_flag, &start_time, progbar_val);
429 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
430 when we update it, we have to run the GTK+ main loop to get it
431 to repaint what's pending, and doing so may involve an "ioctl()"
432 to see if there's any pending input from an X server, and doing
433 that for every packet can be costly, especially on a big file. */
434 if (data_offset >= progbar_nextstep) {
435 file_pos = wtap_read_so_far(cf->wth, NULL);
436 progbar_val = (gfloat) file_pos / (gfloat) size;
437 if (progbar_val > 1.0) {
438 /* The file probably grew while we were reading it.
439 Update file size, and try again. */
440 size = wtap_file_size(cf->wth, NULL);
442 progbar_val = (gfloat) file_pos / (gfloat) size;
443 /* If it's still > 1, either "wtap_file_size()" failed (in which
444 case there's not much we can do about it), or the file
445 *shrank* (in which case there's not much we can do about
446 it); just clip the progress value at 1.0. */
447 if (progbar_val > 1.0)
450 if (progbar != NULL) {
451 /* update the packet lists content */
453 if (auto_scroll_live && cf->plist_end != NULL)
454 packet_list_moveto_end();
455 packet_list_freeze();
457 g_snprintf(status_str, sizeof(status_str),
458 "%" PRId64 "KB of %" PRId64 "KB",
459 file_pos / 1024, size / 1024);
460 update_progress_dlg(progbar, progbar_val, status_str);
462 progbar_nextstep += progbar_quantum;
467 /* Well, the user decided to abort the read. He/She will be warned and
468 it might be enough for him/her to work with the already loaded
470 This is especially true for very large capture files, where you don't
471 want to wait loading the whole file (which may last minutes or even
472 hours even on fast machines) just to see that it was the wrong file. */
475 read_packet(cf, dfcode, data_offset);
478 /* Cleanup and release all dfilter resources */
480 dfilter_free(dfcode);
483 /* We're done reading the file; destroy the progress bar if it was created. */
485 destroy_progress_dlg(progbar);
487 /* We're done reading sequentially through the file. */
488 cf->state = FILE_READ_DONE;
490 /* Close the sequential I/O side, to free up memory it requires. */
491 wtap_sequential_close(cf->wth);
493 /* Allow the protocol dissectors to free up memory that they
494 * don't need after the sequential run-through of the packets. */
495 postseq_cleanup_all_protocols();
497 /* Set the file encapsulation type now; we don't know what it is until
498 we've looked at all the packets, as we don't know until then whether
499 there's more than one type (and thus whether it's
500 WTAP_ENCAP_PER_PACKET). */
501 cf->lnk_t = wtap_file_encap(cf->wth);
503 cf->current_frame = cf->first_displayed;
506 cf_callback_invoke(cf_cb_file_read_finished, cf);
508 /* If we have any displayed packets to select, select the first of those
509 packets by making the first row the selected row. */
510 if (cf->first_displayed != NULL)
511 packet_list_select_row(0);
514 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
515 "%sFile loading was cancelled!%s\n"
517 "The remaining packets in the file were discarded.\n"
519 "As a lot of packets from the original file will be missing,\n"
520 "remember to be careful when saving the current content to a file.\n",
521 simple_dialog_primary_start(), simple_dialog_primary_end());
522 return CF_READ_ERROR;
526 /* Put up a message box noting that the read failed somewhere along
527 the line. Don't throw out the stuff we managed to read, though,
531 case WTAP_ERR_UNSUPPORTED_ENCAP:
532 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
533 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
536 errmsg = errmsg_errno;
539 case WTAP_ERR_CANT_READ:
540 errmsg = "An attempt to read from the capture file failed for"
541 " some unknown reason.";
544 case WTAP_ERR_SHORT_READ:
545 errmsg = "The capture file appears to have been cut short"
546 " in the middle of a packet.";
549 case WTAP_ERR_BAD_RECORD:
550 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
551 "The capture file appears to be damaged or corrupt.\n(%s)",
554 errmsg = errmsg_errno;
558 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
559 "An error occurred while reading the"
560 " capture file: %s.", wtap_strerror(err));
561 errmsg = errmsg_errno;
564 g_snprintf(err_str, sizeof err_str, errmsg);
565 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, err_str);
566 return CF_READ_ERROR;
573 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
575 cf_status_t cf_status;
577 cf_status = cf_open(cf, fname, is_tempfile, err);
582 cf_continue_tail(capture_file *cf, int to_read, int *err)
584 gint64 data_offset = 0;
586 int newly_displayed_packets = 0;
589 /* Compile the current display filter.
590 * We assume this will not fail since cf->dfilter is only set in
591 * cf_filter IFF the filter was valid.
595 dfilter_compile(cf->dfilter, &dfcode);
600 packet_list_freeze();
602 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
604 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
605 if (cf->state == FILE_READ_ABORTED) {
606 /* Well, the user decided to exit Wireshark. Break out of the
607 loop, and let the code below (which is called even if there
608 aren't any packets left to read) exit. */
611 if (read_packet(cf, dfcode, data_offset) != -1) {
612 newly_displayed_packets++;
617 /* Cleanup and release all dfilter resources */
619 dfilter_free(dfcode);
622 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
623 cf->count, cf->state, *err);*/
625 /* XXX - this causes "flickering" of the list */
628 /* moving to the end of the packet list - if the user requested so and
629 we have some new packets.
630 this doesn't seem to work well with a frozen GTK_Clist, so do this after
631 packet_list_thaw() is done, see bugzilla 1188 */
632 /* XXX - this cheats and looks inside the packet list to find the final
634 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
635 packet_list_moveto_end();
637 if (cf->state == FILE_READ_ABORTED) {
638 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
639 so that our caller can kill off the capture child process;
640 this will cause an EOF on the pipe from the child, so
641 "cf_finish_tail()" will be called, and it will clean up
643 return CF_READ_ABORTED;
644 } else if (*err != 0) {
645 /* We got an error reading the capture file.
646 XXX - pop up a dialog box instead? */
647 g_warning("Error \"%s\" while reading: \"%s\"\n",
648 wtap_strerror(*err), cf->filename);
650 return CF_READ_ERROR;
656 cf_finish_tail(capture_file *cf, int *err)
662 /* Compile the current display filter.
663 * We assume this will not fail since cf->dfilter is only set in
664 * cf_filter IFF the filter was valid.
668 dfilter_compile(cf->dfilter, &dfcode);
671 if(cf->wth == NULL) {
673 return CF_READ_ERROR;
676 packet_list_freeze();
678 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
679 if (cf->state == FILE_READ_ABORTED) {
680 /* Well, the user decided to abort the read. Break out of the
681 loop, and let the code below (which is called even if there
682 aren't any packets left to read) exit. */
685 read_packet(cf, dfcode, data_offset);
688 /* Cleanup and release all dfilter resources */
690 dfilter_free(dfcode);
695 if (cf->state == FILE_READ_ABORTED) {
696 /* Well, the user decided to abort the read. We're only called
697 when the child capture process closes the pipe to us (meaning
698 it's probably exited), so we can just close the capture
699 file; we return CF_READ_ABORTED so our caller can do whatever
700 is appropriate when that happens. */
702 return CF_READ_ABORTED;
705 if (auto_scroll_live && cf->plist_end != NULL)
706 /* XXX - this cheats and looks inside the packet list to find the final
708 packet_list_moveto_end();
710 /* We're done reading sequentially through the file. */
711 cf->state = FILE_READ_DONE;
713 /* We're done reading sequentially through the file; close the
714 sequential I/O side, to free up memory it requires. */
715 wtap_sequential_close(cf->wth);
717 /* Allow the protocol dissectors to free up memory that they
718 * don't need after the sequential run-through of the packets. */
719 postseq_cleanup_all_protocols();
721 /* Set the file encapsulation type now; we don't know what it is until
722 we've looked at all the packets, as we don't know until then whether
723 there's more than one type (and thus whether it's
724 WTAP_ENCAP_PER_PACKET). */
725 cf->lnk_t = wtap_file_encap(cf->wth);
728 /* We got an error reading the capture file.
729 XXX - pop up a dialog box? */
730 return CF_READ_ERROR;
735 #endif /* HAVE_LIBPCAP */
738 cf_get_display_name(capture_file *cf)
740 const gchar *displayname;
742 /* Return a name to use in displays */
743 if (!cf->is_tempfile) {
744 /* Get the last component of the file name, and use that. */
746 displayname = get_basename(cf->filename);
748 displayname="(No file)";
751 /* The file we read is a temporary file from a live capture;
752 we don't mention its name. */
753 displayname = "(Untitled)";
758 /* XXX - use a macro instead? */
760 cf_get_packet_count(capture_file *cf)
765 /* XXX - use a macro instead? */
767 cf_set_packet_count(capture_file *cf, int packet_count)
769 cf->count = packet_count;
772 /* XXX - use a macro instead? */
774 cf_is_tempfile(capture_file *cf)
776 return cf->is_tempfile;
779 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
781 cf->is_tempfile = is_tempfile;
785 /* XXX - use a macro instead? */
786 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
788 cf->drops_known = drops_known;
791 /* XXX - use a macro instead? */
792 void cf_set_drops(capture_file *cf, guint32 drops)
797 /* XXX - use a macro instead? */
798 gboolean cf_get_drops_known(capture_file *cf)
800 return cf->drops_known;
803 /* XXX - use a macro instead? */
804 guint32 cf_get_drops(capture_file *cf)
809 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
815 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
817 union wtap_pseudo_header *pseudo_header, const guchar *buf,
821 gboolean create_proto_tree = FALSE;
824 /* just add some value here until we know if it is being displayed or not */
825 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
827 /* If we don't have the time stamp of the first packet in the
828 capture, it's because this is the first packet. Save the time
829 stamp of this packet as the time stamp of the first packet. */
830 if (nstime_is_zero(&first_ts)) {
831 first_ts = fdata->abs_ts;
833 /* if this frames is marked as a reference time frame, reset
834 firstsec and firstusec to this frame */
835 if(fdata->flags.ref_time){
836 first_ts = fdata->abs_ts;
839 /* If we don't have the time stamp of the previous displayed packet,
840 it's because this is the first displayed packet. Save the time
841 stamp of this packet as the time stamp of the previous displayed
843 if (nstime_is_zero(&prev_ts)) {
844 prev_ts = fdata->abs_ts;
847 /* Get the time elapsed between the first packet and this packet. */
848 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
850 /* If it's greater than the current elapsed time, set the elapsed time
851 to it (we check for "greater than" so as not to be confused by
852 time moving backwards). */
853 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
854 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
855 cf->elapsed_time = fdata->rel_ts;
858 /* Get the time elapsed between the previous displayed packet and
860 nstime_delta(&fdata->del_ts, &fdata->abs_ts, &prev_ts);
864 we have a display filter and are re-applying it;
866 we have a list of color filters;
868 we have tap listeners;
870 allocate a protocol tree root node, so that we'll construct
871 a protocol tree against which a filter expression can be
873 if ((dfcode != NULL && refilter) || color_filters_used()
874 || num_tap_filters != 0)
875 create_proto_tree = TRUE;
877 /* Dissect the frame. */
878 edt = epan_dissect_new(create_proto_tree, FALSE);
880 if (dfcode != NULL && refilter) {
881 epan_dissect_prime_dfilter(edt, dfcode);
883 /* prepare color filters */
884 if (color_filters_used()) {
885 color_filters_prime_edt(edt);
888 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
889 tap_push_tapped_queue(edt);
891 /* If we have a display filter, apply it if we're refiltering, otherwise
892 leave the "passed_dfilter" flag alone.
894 If we don't have a display filter, set "passed_dfilter" to 1. */
895 if (dfcode != NULL) {
897 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, edt) ? 1 : 0;
900 fdata->flags.passed_dfilter = 1;
902 if( (fdata->flags.passed_dfilter)
903 || (edt->pi.fd->flags.ref_time) ){
904 /* This frame either passed the display filter list or is marked as
905 a time reference frame. All time reference frames are displayed
906 even if they dont pass the display filter */
907 /* if this was a TIME REF frame we should reset the cul bytes field */
908 if(edt->pi.fd->flags.ref_time){
909 cum_bytes = fdata->pkt_len;
910 fdata->cum_bytes = cum_bytes;
913 /* increase cum_bytes with this packets length */
914 cum_bytes += fdata->pkt_len;
916 epan_dissect_fill_in_columns(edt);
918 /* If we haven't yet seen the first frame, this is it.
920 XXX - we must do this before we add the row to the display,
921 as, if the display's GtkCList's selection mode is
922 GTK_SELECTION_BROWSE, when the first entry is added to it,
923 "cf_select_packet()" will be called, and it will fetch the row
924 data for the 0th row, and will get a null pointer rather than
925 "fdata", as "gtk_clist_append()" won't yet have returned and
926 thus "gtk_clist_set_row_data()" won't yet have been called.
928 We thus need to leave behind bread crumbs so that
929 "cf_select_packet()" can find this frame. See the comment
930 in "cf_select_packet()". */
931 if (cf->first_displayed == NULL)
932 cf->first_displayed = fdata;
934 /* This is the last frame we've seen so far. */
935 cf->last_displayed = fdata;
937 row = packet_list_append(cf->cinfo.col_data, fdata);
939 /* colorize packet: if packet is marked, use preferences,
940 otherwise try to apply color filters */
941 if (fdata->flags.marked) {
942 fdata->color_filter = NULL;
943 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
945 fdata->color_filter = color_filters_colorize_packet(row, edt);
948 /* Set the time of the previous displayed frame to the time of this
950 prev_ts = fdata->abs_ts;
952 cf->displayed_count++;
954 /* This frame didn't pass the display filter, so it's not being added
955 to the clist, and thus has no row. */
958 epan_dissect_free(edt);
962 /* read in a new packet */
963 /* returns the row of the new packet in the packet list or -1 if not displayed */
965 read_packet(capture_file *cf, dfilter_t *dfcode, gint64 offset)
967 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
968 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
969 const guchar *buf = wtap_buf_ptr(cf->wth);
972 frame_data *plist_end;
976 /* Allocate the next list entry, and add it to the list. */
977 fdata = g_mem_chunk_alloc(cf->plist_chunk);
983 fdata->pkt_len = phdr->len;
984 fdata->cap_len = phdr->caplen;
985 fdata->file_off = offset;
986 fdata->lnk_t = phdr->pkt_encap;
987 fdata->flags.encoding = CHAR_ASCII;
988 fdata->flags.visited = 0;
989 fdata->flags.marked = 0;
990 fdata->flags.ref_time = 0;
991 fdata->color_filter = NULL;
993 fdata->abs_ts = *((nstime_t *) &phdr->ts);
997 edt = epan_dissect_new(TRUE, FALSE);
998 epan_dissect_prime_dfilter(edt, cf->rfcode);
999 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
1000 passed = dfilter_apply_edt(cf->rfcode, edt);
1001 epan_dissect_free(edt);
1004 plist_end = cf->plist_end;
1005 fdata->prev = plist_end;
1006 if (plist_end != NULL)
1007 plist_end->next = fdata;
1010 cf->plist_end = fdata;
1013 cf->f_datalen = offset + phdr->caplen;
1014 fdata->num = cf->count;
1015 row = add_packet_to_packet_list(fdata, cf, dfcode, pseudo_header, buf, TRUE);
1017 /* XXX - if we didn't have read filters, or if we could avoid
1018 allocating the "frame_data" structure until we knew whether
1019 the frame passed the read filter, we could use a G_ALLOC_ONLY
1022 ...but, at least in one test I did, where I just made the chunk
1023 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1024 seem to save a noticeable amount of time or space. */
1025 g_mem_chunk_free(cf->plist_chunk, fdata);
1032 cf_merge_files(char **out_filenamep, int in_file_count,
1033 char *const *in_filenames, int file_type, gboolean do_append)
1035 merge_in_file_t *in_files;
1038 char tmpname[128+1];
1041 int open_err, read_err, write_err, close_err;
1045 char errmsg_errno[1024+1];
1046 gchar err_str[2048+1];
1048 gboolean got_read_error = FALSE, got_write_error = FALSE;
1050 progdlg_t *progbar = NULL;
1052 gint64 f_len, file_pos;
1054 GTimeVal start_time;
1055 gchar status_str[100];
1056 gint64 progbar_nextstep;
1057 gint64 progbar_quantum;
1059 /* open the input files */
1060 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1061 &open_err, &err_info, &err_fileno)) {
1063 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1068 if (*out_filenamep != NULL) {
1069 out_filename = *out_filenamep;
1070 out_fd = eth_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1074 out_fd = create_tempfile(tmpname, sizeof tmpname, "ether");
1077 out_filename = g_strdup(tmpname);
1078 *out_filenamep = out_filename;
1082 merge_close_in_files(in_file_count, in_files);
1084 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1088 pdh = wtap_dump_fdopen(out_fd, file_type,
1089 merge_select_frame_type(in_file_count, in_files),
1090 merge_max_snapshot_length(in_file_count, in_files),
1091 FALSE /* compressed */, &open_err);
1094 merge_close_in_files(in_file_count, in_files);
1096 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1101 /* Get the sum of the sizes of all the files. */
1103 for (i = 0; i < in_file_count; i++)
1104 f_len += in_files[i].size;
1106 /* Update the progress bar when it gets to this value. */
1107 progbar_nextstep = 0;
1108 /* When we reach the value that triggers a progress bar update,
1109 bump that value by this amount. */
1110 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1111 /* Progress so far. */
1115 g_get_current_time(&start_time);
1117 /* do the merge (or append) */
1120 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1123 wth = merge_read_packet(in_file_count, in_files, &read_err,
1127 got_read_error = TRUE;
1131 /* Get the sum of the data offsets in all of the files. */
1133 for (i = 0; i < in_file_count; i++)
1134 data_offset += in_files[i].data_offset;
1136 /* Create the progress bar if necessary.
1137 We check on every iteration of the loop, so that it takes no
1138 longer than the standard time to create it (otherwise, for a
1139 large file, we might take considerably longer than that standard
1140 time in order to get to the next progress bar step). */
1141 if (progbar == NULL) {
1142 progbar = delayed_create_progress_dlg("Merging", "files",
1143 FALSE, &stop_flag, &start_time, progbar_val);
1146 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1147 when we update it, we have to run the GTK+ main loop to get it
1148 to repaint what's pending, and doing so may involve an "ioctl()"
1149 to see if there's any pending input from an X server, and doing
1150 that for every packet can be costly, especially on a big file. */
1151 if (data_offset >= progbar_nextstep) {
1152 /* Get the sum of the seek positions in all of the files. */
1154 for (i = 0; i < in_file_count; i++)
1155 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1156 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1157 if (progbar_val > 1.0) {
1158 /* Some file probably grew while we were reading it.
1159 That "shouldn't happen", so we'll just clip the progress
1163 if (progbar != NULL) {
1164 g_snprintf(status_str, sizeof(status_str),
1165 "%" PRId64 "KB of %" PRId64 "KB",
1166 file_pos / 1024, f_len / 1024);
1167 update_progress_dlg(progbar, progbar_val, status_str);
1169 progbar_nextstep += progbar_quantum;
1173 /* Well, the user decided to abort the merge. */
1177 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1178 wtap_buf_ptr(wth), &write_err)) {
1179 got_write_error = TRUE;
1184 /* We're done merging the files; destroy the progress bar if it was created. */
1185 if (progbar != NULL)
1186 destroy_progress_dlg(progbar);
1188 merge_close_in_files(in_file_count, in_files);
1189 if (!got_read_error && !got_write_error) {
1190 if (!wtap_dump_close(pdh, &write_err))
1191 got_write_error = TRUE;
1193 wtap_dump_close(pdh, &close_err);
1195 if (got_read_error) {
1197 * Find the file on which we got the error, and report the error.
1199 for (i = 0; i < in_file_count; i++) {
1200 if (in_files[i].state == GOT_ERROR) {
1201 /* Put up a message box noting that a read failed somewhere along
1205 case WTAP_ERR_UNSUPPORTED_ENCAP:
1206 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1207 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1210 errmsg = errmsg_errno;
1213 case WTAP_ERR_CANT_READ:
1214 errmsg = "An attempt to read from the capture file %s failed for"
1215 " some unknown reason.";
1218 case WTAP_ERR_SHORT_READ:
1219 errmsg = "The capture file %s appears to have been cut short"
1220 " in the middle of a packet.";
1223 case WTAP_ERR_BAD_RECORD:
1224 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1225 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1228 errmsg = errmsg_errno;
1232 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1233 "An error occurred while reading the"
1234 " capture file %%s: %s.", wtap_strerror(read_err));
1235 errmsg = errmsg_errno;
1238 g_snprintf(err_str, sizeof err_str, errmsg, in_files[i].filename);
1239 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, err_str);
1244 if (got_write_error) {
1245 /* Put up an alert box for the write error. */
1246 cf_write_failure_alert_box(out_filename, write_err);
1249 if (got_read_error || got_write_error || stop_flag) {
1250 /* Callers aren't expected to treat an error or an explicit abort
1251 differently - we put up error dialogs ourselves, so they don't
1259 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1261 const char *filter_new = dftext ? dftext : "";
1262 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1265 /* if new filter equals old one, do nothing unless told to do so */
1266 if (!force && strcmp(filter_new, filter_old) == 0) {
1272 if (dftext == NULL) {
1273 /* The new filter is an empty filter (i.e., display all packets).
1274 * so leave dfcode==NULL
1278 * We have a filter; make a copy of it (as we'll be saving it),
1279 * and try to compile it.
1281 dftext = g_strdup(dftext);
1282 if (!dfilter_compile(dftext, &dfcode)) {
1283 /* The attempt failed; report an error. */
1284 gchar *safe_dftext = simple_dialog_format_message(dftext);
1285 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1287 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1290 "The following display filter isn't a valid display filter:\n%s\n"
1291 "See the help for a description of the display filter syntax.",
1292 simple_dialog_primary_start(), safe_dfilter_error_msg,
1293 simple_dialog_primary_end(), safe_dftext);
1294 g_free(safe_dfilter_error_msg);
1295 g_free(safe_dftext);
1301 if (dfcode == NULL) {
1302 /* Yes - free the filter text, and set it to null. */
1308 /* We have a valid filter. Replace the current filter. */
1309 if (cf->dfilter != NULL)
1310 g_free(cf->dfilter);
1311 cf->dfilter = dftext;
1313 /* Now rescan the packet list, applying the new filter, but not
1314 throwing away information constructed on a previous pass. */
1315 if (dftext == NULL) {
1316 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1318 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1321 /* Cleanup and release all dfilter resources */
1322 if (dfcode != NULL){
1323 dfilter_free(dfcode);
1329 cf_colorize_packets(capture_file *cf)
1331 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1335 cf_reftime_packets(capture_file *cf)
1337 rescan_packets(cf, "Updating Reftime", "all packets", FALSE, FALSE);
1341 cf_redissect_packets(capture_file *cf)
1343 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1346 /* Rescan the list of packets, reconstructing the CList.
1348 "action" describes why we're doing this; it's used in the progress
1351 "action_item" describes what we're doing; it's used in the progress
1354 "refilter" is TRUE if we need to re-evaluate the filter expression.
1356 "redissect" is TRUE if we need to make the dissectors reconstruct
1357 any state information they have (because a preference that affects
1358 some dissector has changed, meaning some dissector might construct
1359 its state differently from the way it was constructed the last time). */
1361 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1362 gboolean refilter, gboolean redissect)
1365 progdlg_t *progbar = NULL;
1370 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1371 int selected_row, prev_row, preceding_row, following_row;
1372 gboolean selected_frame_seen;
1375 GTimeVal start_time;
1376 gchar status_str[100];
1377 int progbar_nextstep;
1378 int progbar_quantum;
1381 /* Compile the current display filter.
1382 * We assume this will not fail since cf->dfilter is only set in
1383 * cf_filter IFF the filter was valid.
1387 dfilter_compile(cf->dfilter, &dfcode);
1391 reset_tap_listeners();
1392 /* Which frame, if any, is the currently selected frame?
1393 XXX - should the selected frame or the focus frame be the "current"
1394 frame, that frame being the one from which "Find Frame" searches
1396 selected_frame = cf->current_frame;
1398 /* We don't yet know what row that frame will be on, if any, after we
1399 rebuild the clist, however. */
1403 /* We need to re-initialize all the state information that protocols
1404 keep, because some preference that controls a dissector has changed,
1405 which might cause the state information to be constructed differently
1406 by that dissector. */
1408 /* Initialize all data structures used for dissection. */
1412 /* Freeze the packet list while we redo it, so we don't get any
1413 screen updates while it happens. */
1414 packet_list_freeze();
1417 packet_list_clear();
1419 /* We don't yet know which will be the first and last frames displayed. */
1420 cf->first_displayed = NULL;
1421 cf->last_displayed = NULL;
1423 /* We currently don't display any packets */
1424 cf->displayed_count = 0;
1426 /* Iterate through the list of frames. Call a routine for each frame
1427 to check whether it should be displayed and, if so, add it to
1428 the display list. */
1429 nstime_set_zero(&first_ts);
1430 nstime_set_zero(&prev_ts);
1432 /* Update the progress bar when it gets to this value. */
1433 progbar_nextstep = 0;
1434 /* When we reach the value that triggers a progress bar update,
1435 bump that value by this amount. */
1436 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1437 /* Count of packets at which we've looked. */
1439 /* Progress so far. */
1443 g_get_current_time(&start_time);
1445 row = -1; /* no previous row yet */
1450 preceding_frame = NULL;
1452 following_frame = NULL;
1454 selected_frame_seen = FALSE;
1456 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1457 /* Create the progress bar if necessary.
1458 We check on every iteration of the loop, so that it takes no
1459 longer than the standard time to create it (otherwise, for a
1460 large file, we might take considerably longer than that standard
1461 time in order to get to the next progress bar step). */
1462 if (progbar == NULL)
1463 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1464 &stop_flag, &start_time,
1467 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1468 when we update it, we have to run the GTK+ main loop to get it
1469 to repaint what's pending, and doing so may involve an "ioctl()"
1470 to see if there's any pending input from an X server, and doing
1471 that for every packet can be costly, especially on a big file. */
1472 if (count >= progbar_nextstep) {
1473 /* let's not divide by zero. I should never be started
1474 * with count == 0, so let's assert that
1476 g_assert(cf->count > 0);
1477 progbar_val = (gfloat) count / cf->count;
1479 if (progbar != NULL) {
1480 g_snprintf(status_str, sizeof(status_str),
1481 "%4u of %u frames", count, cf->count);
1482 update_progress_dlg(progbar, progbar_val, status_str);
1485 progbar_nextstep += progbar_quantum;
1489 /* Well, the user decided to abort the filtering. Just stop.
1491 XXX - go back to the previous filter? Users probably just
1492 want not to wait for a filtering operation to finish;
1493 unless we cancel by having no filter, reverting to the
1494 previous filter will probably be even more expensive than
1495 continuing the filtering, as it involves going back to the
1496 beginning and filtering, and even with no filter we currently
1497 have to re-generate the entire clist, which is also expensive.
1499 I'm not sure what Network Monitor does, but it doesn't appear
1500 to give you an unfiltered display if you cancel. */
1507 /* Since all state for the frame was destroyed, mark the frame
1508 * as not visited, free the GSList referring to the state
1509 * data (the per-frame data itself was freed by
1510 * "init_dissection()"), and null out the GSList pointer. */
1511 fdata->flags.visited = 0;
1513 g_slist_free(fdata->pfd);
1518 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1519 cf->pd, fdata->cap_len, &err, &err_info)) {
1520 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1521 cf_read_error_message(err, err_info), cf->filename);
1525 /* If the previous frame is displayed, and we haven't yet seen the
1526 selected frame, remember that frame - it's the closest one we've
1527 yet seen before the selected frame. */
1528 if (prev_row != -1 && !selected_frame_seen) {
1529 preceding_row = prev_row;
1530 preceding_frame = prev_frame;
1532 row = add_packet_to_packet_list(fdata, cf, dfcode, &cf->pseudo_header, cf->pd,
1535 /* If this frame is displayed, and this is the first frame we've
1536 seen displayed after the selected frame, remember this frame -
1537 it's the closest one we've yet seen at or after the selected
1539 if (row != -1 && selected_frame_seen && following_row == -1) {
1540 following_row = row;
1541 following_frame = fdata;
1543 if (fdata == selected_frame) {
1545 selected_frame_seen = TRUE;
1548 /* Remember this row/frame - it'll be the previous row/frame
1549 on the next pass through the loop. */
1555 /* Clear out what remains of the visited flags and per-frame data
1558 XXX - that may cause various forms of bogosity when dissecting
1559 these frames, as they won't have been seen by this sequential
1560 pass, but the only alternative I see is to keep scanning them
1561 even though the user requested that the scan stop, and that
1562 would leave the user stuck with an Wireshark grinding on
1563 until it finishes. Should we just stick them with that? */
1564 for (; fdata != NULL; fdata = fdata->next) {
1565 fdata->flags.visited = 0;
1567 g_slist_free(fdata->pfd);
1573 /* We're done filtering the packets; destroy the progress bar if it
1575 if (progbar != NULL)
1576 destroy_progress_dlg(progbar);
1578 /* Unfreeze the packet list. */
1581 if (selected_row == -1) {
1582 /* The selected frame didn't pass the filter. */
1583 if (selected_frame == NULL) {
1584 /* That's because there *was* no selected frame. Make the first
1585 displayed frame the current frame. */
1588 /* Find the nearest displayed frame to the selected frame (whether
1589 it's before or after that frame) and make that the current frame.
1590 If the next and previous displayed frames are equidistant from the
1591 selected frame, choose the next one. */
1592 g_assert(following_frame == NULL ||
1593 following_frame->num >= selected_frame->num);
1594 g_assert(preceding_frame == NULL ||
1595 preceding_frame->num <= selected_frame->num);
1596 if (following_frame == NULL) {
1597 /* No frame after the selected frame passed the filter, so we
1598 have to select the last displayed frame before the selected
1600 selected_row = preceding_row;
1601 } else if (preceding_frame == NULL) {
1602 /* No frame before the selected frame passed the filter, so we
1603 have to select the first displayed frame after the selected
1605 selected_row = following_row;
1610 if (selected_row == -1) {
1611 /* There are no frames displayed at all. */
1612 cf_unselect_packet(cf);
1614 /* Either the frame that was selected passed the filter, or we've
1615 found the nearest displayed frame to that frame. Select it, make
1616 it the focus row, and make it visible. */
1617 packet_list_set_selected_row(selected_row);
1620 /* Cleanup and release all dfilter resources */
1621 if (dfcode != NULL){
1622 dfilter_free(dfcode);
1633 process_specified_packets(capture_file *cf, packet_range_t *range,
1634 const char *string1, const char *string2, gboolean terminate_is_stop,
1635 gboolean (*callback)(capture_file *, frame_data *,
1636 union wtap_pseudo_header *, const guint8 *, void *),
1637 void *callback_args)
1642 union wtap_pseudo_header pseudo_header;
1643 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
1644 psp_return_t ret = PSP_FINISHED;
1646 progdlg_t *progbar = NULL;
1649 gboolean progbar_stop_flag;
1650 GTimeVal progbar_start_time;
1651 gchar progbar_status_str[100];
1652 int progbar_nextstep;
1653 int progbar_quantum;
1654 range_process_e process_this;
1656 /* Update the progress bar when it gets to this value. */
1657 progbar_nextstep = 0;
1658 /* When we reach the value that triggers a progress bar update,
1659 bump that value by this amount. */
1660 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1661 /* Count of packets at which we've looked. */
1663 /* Progress so far. */
1666 progbar_stop_flag = FALSE;
1667 g_get_current_time(&progbar_start_time);
1669 packet_range_process_init(range);
1671 /* Iterate through the list of packets, printing the packets that
1672 were selected by the current display filter. */
1673 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1674 /* Create the progress bar if necessary.
1675 We check on every iteration of the loop, so that it takes no
1676 longer than the standard time to create it (otherwise, for a
1677 large file, we might take considerably longer than that standard
1678 time in order to get to the next progress bar step). */
1679 if (progbar == NULL)
1680 progbar = delayed_create_progress_dlg(string1, string2,
1683 &progbar_start_time,
1686 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1687 when we update it, we have to run the GTK+ main loop to get it
1688 to repaint what's pending, and doing so may involve an "ioctl()"
1689 to see if there's any pending input from an X server, and doing
1690 that for every packet can be costly, especially on a big file. */
1691 if (progbar_count >= progbar_nextstep) {
1692 /* let's not divide by zero. I should never be started
1693 * with count == 0, so let's assert that
1695 g_assert(cf->count > 0);
1696 progbar_val = (gfloat) progbar_count / cf->count;
1698 if (progbar != NULL) {
1699 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
1700 "%4u of %u packets", progbar_count, cf->count);
1701 update_progress_dlg(progbar, progbar_val, progbar_status_str);
1704 progbar_nextstep += progbar_quantum;
1707 if (progbar_stop_flag) {
1708 /* Well, the user decided to abort the operation. Just stop,
1709 and arrange to return PSP_STOPPED to our caller, so they know
1710 it was stopped explicitly. */
1717 /* do we have to process this packet? */
1718 process_this = packet_range_process_packet(range, fdata);
1719 if (process_this == range_process_next) {
1720 /* this packet uninteresting, continue with next one */
1722 } else if (process_this == range_processing_finished) {
1723 /* all interesting packets processed, stop the loop */
1727 /* Get the packet */
1728 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1729 pd, fdata->cap_len, &err, &err_info)) {
1730 /* Attempt to get the packet failed. */
1731 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1732 cf_read_error_message(err, err_info), cf->filename);
1736 /* Process the packet */
1737 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
1738 /* Callback failed. We assume it reported the error appropriately. */
1744 /* We're done printing the packets; destroy the progress bar if
1746 if (progbar != NULL)
1747 destroy_progress_dlg(progbar);
1753 retap_packet(capture_file *cf _U_, frame_data *fdata,
1754 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
1757 column_info *cinfo = argsp;
1758 epan_dissect_t *edt;
1760 /* If we have tap listeners, allocate a protocol tree root node, so that
1761 we'll construct a protocol tree against which a filter expression can
1763 edt = epan_dissect_new(num_tap_filters != 0, FALSE);
1764 tap_queue_init(edt);
1765 epan_dissect_run(edt, pseudo_header, pd, fdata, cinfo);
1766 tap_push_tapped_queue(edt);
1767 epan_dissect_free(edt);
1773 cf_retap_packets(capture_file *cf, gboolean do_columns)
1775 packet_range_t range;
1777 /* Reset the tap listeners. */
1778 reset_tap_listeners();
1780 /* Iterate through the list of packets, dissecting all packets and
1781 re-running the taps. */
1782 packet_range_init(&range);
1783 packet_range_process_init(&range);
1784 switch (process_specified_packets(cf, &range, "Refiltering statistics on",
1785 "all packets", TRUE, retap_packet,
1786 do_columns ? &cf->cinfo : NULL)) {
1788 /* Completed successfully. */
1792 /* Well, the user decided to abort the refiltering.
1793 Return CF_READ_ABORTED so our caller knows they did that. */
1794 return CF_READ_ABORTED;
1797 /* Error while retapping. */
1798 return CF_READ_ERROR;
1801 g_assert_not_reached();
1806 print_args_t *print_args;
1807 gboolean print_header_line;
1808 char *header_line_buf;
1809 int header_line_buf_len;
1810 gboolean print_formfeed;
1811 gboolean print_separator;
1815 } print_callback_args_t;
1818 print_packet(capture_file *cf, frame_data *fdata,
1819 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
1822 print_callback_args_t *args = argsp;
1823 epan_dissect_t *edt;
1829 gboolean proto_tree_needed;
1830 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
1831 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
1833 /* Create the protocol tree, and make it visible, if we're printing
1834 the dissection or the hex data.
1835 XXX - do we need it if we're just printing the hex data? */
1837 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex;
1838 edt = epan_dissect_new(proto_tree_needed, proto_tree_needed);
1840 /* Fill in the column information if we're printing the summary
1842 if (args->print_args->print_summary) {
1843 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
1844 epan_dissect_fill_in_columns(edt);
1846 epan_dissect_run(edt, pseudo_header, pd, fdata, NULL);
1848 if (args->print_formfeed) {
1849 if (!new_page(args->print_args->stream))
1852 if (args->print_separator) {
1853 if (!print_line(args->print_args->stream, 0, ""))
1859 * We generate bookmarks, if the output format supports them.
1860 * The name is "__frameN__".
1862 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
1864 if (args->print_args->print_summary) {
1865 if (args->print_header_line) {
1866 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
1868 args->print_header_line = FALSE; /* we might not need to print any more */
1870 cp = &args->line_buf[0];
1872 for (i = 0; i < cf->cinfo.num_cols; i++) {
1873 /* Find the length of the string for this column. */
1874 column_len = strlen(cf->cinfo.col_data[i]);
1875 if (args->col_widths[i] > column_len)
1876 column_len = args->col_widths[i];
1878 /* Make sure there's room in the line buffer for the column; if not,
1879 double its length. */
1880 line_len += column_len + 1; /* "+1" for space */
1881 if (line_len > args->line_buf_len) {
1882 cp_off = cp - args->line_buf;
1883 args->line_buf_len = 2 * line_len;
1884 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
1885 cp = args->line_buf + cp_off;
1888 /* Right-justify the packet number column. */
1889 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1890 sprintf(cp, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
1892 sprintf(cp, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
1894 if (i != cf->cinfo.num_cols - 1)
1900 * Generate a bookmark, using the summary line as the title.
1902 if (!print_bookmark(args->print_args->stream, bookmark_name,
1906 if (!print_line(args->print_args->stream, 0, args->line_buf))
1910 * Generate a bookmark, using "Frame N" as the title, as we're not
1911 * printing the summary line.
1913 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
1914 if (!print_bookmark(args->print_args->stream, bookmark_name,
1917 } /* if (print_summary) */
1919 if (args->print_args->print_dissections != print_dissections_none) {
1920 if (args->print_args->print_summary) {
1921 /* Separate the summary line from the tree with a blank line. */
1922 if (!print_line(args->print_args->stream, 0, ""))
1926 /* Print the information in that tree. */
1927 if (!proto_tree_print(args->print_args, edt, args->print_args->stream))
1930 /* Print a blank line if we print anything after this (aka more than one packet). */
1931 args->print_separator = TRUE;
1933 /* Print a header line if we print any more packet summaries */
1934 args->print_header_line = TRUE;
1937 if (args->print_args->print_hex) {
1938 /* Print the full packet data as hex. */
1939 if (!print_hex_data(args->print_args->stream, edt))
1942 /* Print a blank line if we print anything after this (aka more than one packet). */
1943 args->print_separator = TRUE;
1945 /* Print a header line if we print any more packet summaries */
1946 args->print_header_line = TRUE;
1947 } /* if (args->print_args->print_dissections != print_dissections_none) */
1949 epan_dissect_free(edt);
1951 /* do we want to have a formfeed between each packet from now on? */
1952 if(args->print_args->print_formfeed) {
1953 args->print_formfeed = TRUE;
1959 epan_dissect_free(edt);
1964 cf_print_packets(capture_file *cf, print_args_t *print_args)
1967 print_callback_args_t callback_args;
1975 callback_args.print_args = print_args;
1976 callback_args.print_header_line = TRUE;
1977 callback_args.header_line_buf = NULL;
1978 callback_args.header_line_buf_len = 256;
1979 callback_args.print_formfeed = FALSE;
1980 callback_args.print_separator = FALSE;
1981 callback_args.line_buf = NULL;
1982 callback_args.line_buf_len = 256;
1983 callback_args.col_widths = NULL;
1985 if (!print_preamble(print_args->stream, cf->filename)) {
1986 destroy_print_stream(print_args->stream);
1987 return CF_PRINT_WRITE_ERROR;
1990 if (print_args->print_summary) {
1991 /* We're printing packet summaries. Allocate the header line buffer
1992 and get the column widths. */
1993 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
1995 /* Find the widths for each of the columns - maximum of the
1996 width of the title and the width of the data - and construct
1997 a buffer with a line containing the column titles. */
1998 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
1999 cp = &callback_args.header_line_buf[0];
2001 for (i = 0; i < cf->cinfo.num_cols; i++) {
2002 /* Don't pad the last column. */
2003 if (i == cf->cinfo.num_cols - 1)
2004 callback_args.col_widths[i] = 0;
2006 callback_args.col_widths[i] = strlen(cf->cinfo.col_title[i]);
2007 data_width = get_column_char_width(get_column_format(i));
2008 if (data_width > callback_args.col_widths[i])
2009 callback_args.col_widths[i] = data_width;
2012 /* Find the length of the string for this column. */
2013 column_len = strlen(cf->cinfo.col_title[i]);
2014 if (callback_args.col_widths[i] > column_len)
2015 column_len = callback_args.col_widths[i];
2017 /* Make sure there's room in the line buffer for the column; if not,
2018 double its length. */
2019 line_len += column_len + 1; /* "+1" for space */
2020 if (line_len > callback_args.header_line_buf_len) {
2021 cp_off = cp - callback_args.header_line_buf;
2022 callback_args.header_line_buf_len = 2 * line_len;
2023 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2024 callback_args.header_line_buf_len + 1);
2025 cp = callback_args.header_line_buf + cp_off;
2028 /* Right-justify the packet number column. */
2029 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2030 sprintf(cp, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2032 sprintf(cp, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2034 if (i != cf->cinfo.num_cols - 1)
2039 /* Now start out the main line buffer with the same length as the
2040 header line buffer. */
2041 callback_args.line_buf_len = callback_args.header_line_buf_len;
2042 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2043 } /* if (print_summary) */
2045 /* Iterate through the list of packets, printing the packets we were
2047 ret = process_specified_packets(cf, &print_args->range, "Printing",
2048 "selected packets", TRUE, print_packet,
2051 if (callback_args.header_line_buf != NULL)
2052 g_free(callback_args.header_line_buf);
2053 if (callback_args.line_buf != NULL)
2054 g_free(callback_args.line_buf);
2055 if (callback_args.col_widths != NULL)
2056 g_free(callback_args.col_widths);
2061 /* Completed successfully. */
2065 /* Well, the user decided to abort the printing.
2067 XXX - note that what got generated before they did that
2068 will get printed if we're piping to a print program; we'd
2069 have to write to a file and then hand that to the print
2070 program to make it actually not print anything. */
2074 /* Error while printing.
2076 XXX - note that what got generated before they did that
2077 will get printed if we're piping to a print program; we'd
2078 have to write to a file and then hand that to the print
2079 program to make it actually not print anything. */
2080 destroy_print_stream(print_args->stream);
2081 return CF_PRINT_WRITE_ERROR;
2084 if (!print_finale(print_args->stream)) {
2085 destroy_print_stream(print_args->stream);
2086 return CF_PRINT_WRITE_ERROR;
2089 if (!destroy_print_stream(print_args->stream))
2090 return CF_PRINT_WRITE_ERROR;
2096 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2097 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2101 epan_dissect_t *edt;
2103 /* Create the protocol tree, but don't fill in the column information. */
2104 edt = epan_dissect_new(TRUE, TRUE);
2105 epan_dissect_run(edt, pseudo_header, pd, fdata, NULL);
2107 /* Write out the information in that tree. */
2108 proto_tree_write_pdml(edt, fh);
2110 epan_dissect_free(edt);
2116 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2121 fh = eth_fopen(print_args->file, "w");
2123 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2125 write_pdml_preamble(fh);
2128 return CF_PRINT_WRITE_ERROR;
2131 /* Iterate through the list of packets, printing the packets we were
2133 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2134 "selected packets", TRUE,
2135 write_pdml_packet, fh);
2140 /* Completed successfully. */
2144 /* Well, the user decided to abort the printing. */
2148 /* Error while printing. */
2150 return CF_PRINT_WRITE_ERROR;
2153 write_pdml_finale(fh);
2156 return CF_PRINT_WRITE_ERROR;
2159 /* XXX - check for an error */
2166 write_psml_packet(capture_file *cf, frame_data *fdata,
2167 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2171 epan_dissect_t *edt;
2173 /* Fill in the column information, but don't create the protocol tree. */
2174 edt = epan_dissect_new(FALSE, FALSE);
2175 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
2176 epan_dissect_fill_in_columns(edt);
2178 /* Write out the information in that tree. */
2179 proto_tree_write_psml(edt, fh);
2181 epan_dissect_free(edt);
2187 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2192 fh = eth_fopen(print_args->file, "w");
2194 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2196 write_psml_preamble(fh);
2199 return CF_PRINT_WRITE_ERROR;
2202 /* Iterate through the list of packets, printing the packets we were
2204 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2205 "selected packets", TRUE,
2206 write_psml_packet, fh);
2211 /* Completed successfully. */
2215 /* Well, the user decided to abort the printing. */
2219 /* Error while printing. */
2221 return CF_PRINT_WRITE_ERROR;
2224 write_psml_finale(fh);
2227 return CF_PRINT_WRITE_ERROR;
2230 /* XXX - check for an error */
2237 write_csv_packet(capture_file *cf, frame_data *fdata,
2238 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2242 epan_dissect_t *edt;
2244 /* Fill in the column information, but don't create the protocol tree. */
2245 edt = epan_dissect_new(FALSE, FALSE);
2246 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
2247 epan_dissect_fill_in_columns(edt);
2249 /* Write out the information in that tree. */
2250 proto_tree_write_csv(edt, fh);
2252 epan_dissect_free(edt);
2258 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2263 fh = eth_fopen(print_args->file, "w");
2265 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2267 write_csv_preamble(fh);
2270 return CF_PRINT_WRITE_ERROR;
2273 /* Iterate through the list of packets, printing the packets we were
2275 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2276 "selected packets", TRUE,
2277 write_csv_packet, fh);
2282 /* Completed successfully. */
2286 /* Well, the user decided to abort the printing. */
2290 /* Error while printing. */
2292 return CF_PRINT_WRITE_ERROR;
2295 write_csv_finale(fh);
2298 return CF_PRINT_WRITE_ERROR;
2301 /* XXX - check for an error */
2307 /* Scan through the packet list and change all columns that use the
2308 "command-line-specified" time stamp format to use the current
2309 value of that format. */
2311 cf_change_time_formats(capture_file *cf)
2314 progdlg_t *progbar = NULL;
2320 GTimeVal start_time;
2321 gchar status_str[100];
2322 int progbar_nextstep;
2323 int progbar_quantum;
2325 gboolean sorted_by_frame_column;
2328 /* adjust timestamp precision if auto is selected */
2329 cf_timestamp_auto_precision(cf);
2331 /* Are there any columns with time stamps in the "command-line-specified"
2334 XXX - we have to force the "column is writable" flag on, as it
2335 might be off from the last frame that was dissected. */
2336 col_set_writable(&cf->cinfo, TRUE);
2337 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
2338 /* No, there aren't any columns in that format, so we have no work
2342 first = cf->cinfo.col_first[COL_CLS_TIME];
2343 g_assert(first >= 0);
2344 last = cf->cinfo.col_last[COL_CLS_TIME];
2346 /* Freeze the packet list while we redo it, so we don't get any
2347 screen updates while it happens. */
2348 packet_list_freeze();
2350 /* Update the progress bar when it gets to this value. */
2351 progbar_nextstep = 0;
2352 /* When we reach the value that triggers a progress bar update,
2353 bump that value by this amount. */
2354 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2355 /* Count of packets at which we've looked. */
2357 /* Progress so far. */
2360 /* If the rows are currently sorted by the frame column then we know
2361 * the row number of each packet: it's the row number of the previously
2362 * displayed packet + 1.
2364 * Otherwise, if the display is sorted by a different column then we have
2365 * to use the O(N) packet_list_find_row_from_data() (thus making the job
2366 * of changing the time display format O(N**2)).
2368 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
2369 * the row number and walks that many elements down the clist to find
2370 * the appropriate element.)
2372 sorted_by_frame_column = FALSE;
2373 for (i = 0; i < cf->cinfo.num_cols; i++) {
2374 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2376 sorted_by_frame_column = (i == packet_list_get_sort_column());
2382 g_get_current_time(&start_time);
2384 /* Iterate through the list of packets, checking whether the packet
2385 is in a row of the summary list and, if so, whether there are
2386 any columns that show the time in the "command-line-specified"
2387 format and, if so, update that row. */
2388 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
2389 /* Create the progress bar if necessary.
2390 We check on every iteration of the loop, so that it takes no
2391 longer than the standard time to create it (otherwise, for a
2392 large file, we might take considerably longer than that standard
2393 time in order to get to the next progress bar step). */
2394 if (progbar == NULL)
2395 progbar = delayed_create_progress_dlg("Changing", "time display",
2396 TRUE, &stop_flag, &start_time, progbar_val);
2398 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2399 when we update it, we have to run the GTK+ main loop to get it
2400 to repaint what's pending, and doing so may involve an "ioctl()"
2401 to see if there's any pending input from an X server, and doing
2402 that for every packet can be costly, especially on a big file. */
2403 if (count >= progbar_nextstep) {
2404 /* let's not divide by zero. I should never be started
2405 * with count == 0, so let's assert that
2407 g_assert(cf->count > 0);
2409 progbar_val = (gfloat) count / cf->count;
2411 if (progbar != NULL) {
2412 g_snprintf(status_str, sizeof(status_str),
2413 "%4u of %u packets", count, cf->count);
2414 update_progress_dlg(progbar, progbar_val, status_str);
2417 progbar_nextstep += progbar_quantum;
2421 /* Well, the user decided to abort the redisplay. Just stop.
2423 XXX - this leaves the time field in the old format in
2424 frames we haven't yet processed. So it goes; should we
2425 simply not offer them the option of stopping? */
2431 /* Find what row this packet is in. */
2432 if (!sorted_by_frame_column) {
2433 /* This function is O(N), so we try to avoid using it... */
2434 row = packet_list_find_row_from_data(fdata);
2436 /* ...which we do by maintaining a count of packets that are
2437 being displayed (i.e., that have passed the display filter),
2438 and using the current value of that count as the row number
2439 (which is why we can only do it when the display is sorted
2440 by the frame number). */
2441 if (fdata->flags.passed_dfilter)
2448 /* This packet is in the summary list, on row "row". */
2450 for (i = first; i <= last; i++) {
2451 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
2452 /* This is one of the columns that shows the time in
2453 "command-line-specified" format; update it. */
2454 cf->cinfo.col_buf[i][0] = '\0';
2455 col_set_cls_time(fdata, &cf->cinfo, i);
2456 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
2462 /* We're done redisplaying the packets; destroy the progress bar if it
2464 if (progbar != NULL)
2465 destroy_progress_dlg(progbar);
2467 /* Set the column widths of those columns that show the time in
2468 "command-line-specified" format. */
2469 for (i = first; i <= last; i++) {
2470 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
2471 packet_list_set_cls_time_width(i);
2475 /* Unfreeze the packet list. */
2483 gboolean frame_matched;
2487 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
2491 mdata.string = string;
2492 mdata.string_len = strlen(string);
2493 return find_packet(cf, match_protocol_tree, &mdata);
2497 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2499 match_data *mdata = criterion;
2500 epan_dissect_t *edt;
2502 /* Construct the protocol tree, including the displayed text */
2503 edt = epan_dissect_new(TRUE, TRUE);
2504 /* We don't need the column information */
2505 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2507 /* Iterate through all the nodes, seeing if they have text that matches. */
2509 mdata->frame_matched = FALSE;
2510 proto_tree_children_foreach(edt->tree, match_subtree_text, mdata);
2511 epan_dissect_free(edt);
2512 return mdata->frame_matched;
2516 match_subtree_text(proto_node *node, gpointer data)
2518 match_data *mdata = (match_data*) data;
2519 const gchar *string = mdata->string;
2520 size_t string_len = mdata->string_len;
2521 capture_file *cf = mdata->cf;
2522 field_info *fi = PITEM_FINFO(node);
2523 gchar label_str[ITEM_LABEL_LENGTH];
2530 if (mdata->frame_matched) {
2531 /* We already had a match; don't bother doing any more work. */
2535 /* Don't match invisible entries. */
2536 if (PROTO_ITEM_IS_HIDDEN(node))
2539 /* was a free format label produced? */
2541 label_ptr = fi->rep->representation;
2543 /* no, make a generic label */
2544 label_ptr = label_str;
2545 proto_item_fill_label(fi, label_str);
2548 /* Does that label match? */
2549 label_len = strlen(label_ptr);
2550 for (i = 0; i < label_len; i++) {
2551 c_char = label_ptr[i];
2553 c_char = toupper(c_char);
2554 if (c_char == string[c_match]) {
2556 if (c_match == string_len) {
2557 /* No need to look further; we have a match */
2558 mdata->frame_matched = TRUE;
2565 /* Recurse into the subtree, if it exists */
2566 if (node->first_child != NULL)
2567 proto_tree_children_foreach(node, match_subtree_text, mdata);
2571 cf_find_packet_summary_line(capture_file *cf, const char *string)
2575 mdata.string = string;
2576 mdata.string_len = strlen(string);
2577 return find_packet(cf, match_summary_line, &mdata);
2581 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2583 match_data *mdata = criterion;
2584 const gchar *string = mdata->string;
2585 size_t string_len = mdata->string_len;
2586 epan_dissect_t *edt;
2587 const char *info_column;
2588 size_t info_column_len;
2589 gboolean frame_matched = FALSE;
2595 /* Don't bother constructing the protocol tree */
2596 edt = epan_dissect_new(FALSE, FALSE);
2597 /* Get the column information */
2598 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2600 /* Find the Info column */
2601 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2602 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2603 /* Found it. See if we match. */
2604 info_column = edt->pi.cinfo->col_data[colx];
2605 info_column_len = strlen(info_column);
2606 for (i = 0; i < info_column_len; i++) {
2607 c_char = info_column[i];
2609 c_char = toupper(c_char);
2610 if (c_char == string[c_match]) {
2612 if (c_match == string_len) {
2613 frame_matched = TRUE;
2622 epan_dissect_free(edt);
2623 return frame_matched;
2629 } cbs_t; /* "Counted byte string" */
2632 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
2637 info.data_len = string_size;
2639 /* String or hex search? */
2641 /* String search - what type of string? */
2642 switch (cf->scs_type) {
2644 case SCS_ASCII_AND_UNICODE:
2645 return find_packet(cf, match_ascii_and_unicode, &info);
2648 return find_packet(cf, match_ascii, &info);
2651 return find_packet(cf, match_unicode, &info);
2654 g_assert_not_reached();
2658 return find_packet(cf, match_binary, &info);
2662 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2664 cbs_t *info = criterion;
2665 const char *ascii_text = info->data;
2666 size_t textlen = info->data_len;
2667 gboolean frame_matched;
2673 frame_matched = FALSE;
2674 buf_len = fdata->pkt_len;
2675 for (i = 0; i < buf_len; i++) {
2678 c_char = toupper(c_char);
2680 if (c_char == ascii_text[c_match]) {
2682 if (c_match == textlen) {
2683 frame_matched = TRUE;
2684 cf->search_pos = i; /* Save the position of the last character
2685 for highlighting the field. */
2692 return frame_matched;
2696 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
2698 cbs_t *info = criterion;
2699 const char *ascii_text = info->data;
2700 size_t textlen = info->data_len;
2701 gboolean frame_matched;
2707 frame_matched = FALSE;
2708 buf_len = fdata->pkt_len;
2709 for (i = 0; i < buf_len; i++) {
2712 c_char = toupper(c_char);
2713 if (c_char == ascii_text[c_match]) {
2715 if (c_match == textlen) {
2716 frame_matched = TRUE;
2717 cf->search_pos = i; /* Save the position of the last character
2718 for highlighting the field. */
2724 return frame_matched;
2728 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2730 cbs_t *info = criterion;
2731 const char *ascii_text = info->data;
2732 size_t textlen = info->data_len;
2733 gboolean frame_matched;
2739 frame_matched = FALSE;
2740 buf_len = fdata->pkt_len;
2741 for (i = 0; i < buf_len; i++) {
2744 c_char = toupper(c_char);
2745 if (c_char == ascii_text[c_match]) {
2748 if (c_match == textlen) {
2749 frame_matched = TRUE;
2750 cf->search_pos = i; /* Save the position of the last character
2751 for highlighting the field. */
2757 return frame_matched;
2761 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
2763 cbs_t *info = criterion;
2764 const guint8 *binary_data = info->data;
2765 size_t datalen = info->data_len;
2766 gboolean frame_matched;
2771 frame_matched = FALSE;
2772 buf_len = fdata->pkt_len;
2773 for (i = 0; i < buf_len; i++) {
2774 if (cf->pd[i] == binary_data[c_match]) {
2776 if (c_match == datalen) {
2777 frame_matched = TRUE;
2778 cf->search_pos = i; /* Save the position of the last character
2779 for highlighting the field. */
2785 return frame_matched;
2789 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
2791 return find_packet(cf, match_dfilter, sfcode);
2795 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
2797 dfilter_t *sfcode = criterion;
2798 epan_dissect_t *edt;
2799 gboolean frame_matched;
2801 edt = epan_dissect_new(TRUE, FALSE);
2802 epan_dissect_prime_dfilter(edt, sfcode);
2803 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2804 frame_matched = dfilter_apply_edt(sfcode, edt);
2805 epan_dissect_free(edt);
2806 return frame_matched;
2810 find_packet(capture_file *cf,
2811 gboolean (*match_function)(capture_file *, frame_data *, void *),
2814 frame_data *start_fd;
2816 frame_data *new_fd = NULL;
2817 progdlg_t *progbar = NULL;
2824 GTimeVal start_time;
2825 gchar status_str[100];
2826 int progbar_nextstep;
2827 int progbar_quantum;
2830 start_fd = cf->current_frame;
2831 if (start_fd != NULL) {
2832 /* Iterate through the list of packets, starting at the packet we've
2833 picked, calling a routine to run the filter on the packet, see if
2834 it matches, and stop if so. */
2838 /* Update the progress bar when it gets to this value. */
2839 progbar_nextstep = 0;
2840 /* When we reach the value that triggers a progress bar update,
2841 bump that value by this amount. */
2842 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2843 /* Progress so far. */
2847 g_get_current_time(&start_time);
2850 title = cf->sfilter?cf->sfilter:"";
2852 /* Create the progress bar if necessary.
2853 We check on every iteration of the loop, so that it takes no
2854 longer than the standard time to create it (otherwise, for a
2855 large file, we might take considerably longer than that standard
2856 time in order to get to the next progress bar step). */
2857 if (progbar == NULL)
2858 progbar = delayed_create_progress_dlg("Searching", title,
2859 FALSE, &stop_flag, &start_time, progbar_val);
2861 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2862 when we update it, we have to run the GTK+ main loop to get it
2863 to repaint what's pending, and doing so may involve an "ioctl()"
2864 to see if there's any pending input from an X server, and doing
2865 that for every packet can be costly, especially on a big file. */
2866 if (count >= progbar_nextstep) {
2867 /* let's not divide by zero. I should never be started
2868 * with count == 0, so let's assert that
2870 g_assert(cf->count > 0);
2872 progbar_val = (gfloat) count / cf->count;
2874 if (progbar != NULL) {
2875 g_snprintf(status_str, sizeof(status_str),
2876 "%4u of %u packets", count, cf->count);
2877 update_progress_dlg(progbar, progbar_val, status_str);
2880 progbar_nextstep += progbar_quantum;
2884 /* Well, the user decided to abort the search. Go back to the
2885 frame where we started. */
2890 /* Go past the current frame. */
2891 if (cf->sbackward) {
2892 /* Go on to the previous frame. */
2893 fdata = fdata->prev;
2894 if (fdata == NULL) {
2896 * XXX - other apps have a bit more of a detailed message
2897 * for this, and instead of offering "OK" and "Cancel",
2898 * they offer things such as "Continue" and "Cancel";
2899 * we need an API for popping up alert boxes with
2900 * {Verb} and "Cancel".
2903 if (prefs.gui_find_wrap)
2905 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2906 "%sBeginning of capture exceeded!%s\n\n"
2907 "Search is continued from the end of the capture.",
2908 simple_dialog_primary_start(), simple_dialog_primary_end());
2909 fdata = cf->plist_end; /* wrap around */
2913 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2914 "%sBeginning of capture exceeded!%s\n\n"
2915 "Try searching forwards.",
2916 simple_dialog_primary_start(), simple_dialog_primary_end());
2917 fdata = start_fd; /* stay on previous packet */
2921 /* Go on to the next frame. */
2922 fdata = fdata->next;
2923 if (fdata == NULL) {
2924 if (prefs.gui_find_wrap)
2926 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2927 "%sEnd of capture exceeded!%s\n\n"
2928 "Search is continued from the start of the capture.",
2929 simple_dialog_primary_start(), simple_dialog_primary_end());
2930 fdata = cf->plist; /* wrap around */
2934 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2935 "%sEnd of capture exceeded!%s\n\n"
2936 "Try searching backwards.",
2937 simple_dialog_primary_start(), simple_dialog_primary_end());
2938 fdata = start_fd; /* stay on previous packet */
2945 /* Is this packet in the display? */
2946 if (fdata->flags.passed_dfilter) {
2947 /* Yes. Load its data. */
2948 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
2949 cf->pd, fdata->cap_len, &err, &err_info)) {
2950 /* Read error. Report the error, and go back to the frame
2951 where we started. */
2952 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2953 cf_read_error_message(err, err_info), cf->filename);
2958 /* Does it match the search criterion? */
2959 if ((*match_function)(cf, fdata, criterion)) {
2961 break; /* found it! */
2965 if (fdata == start_fd) {
2966 /* We're back to the frame we were on originally, and that frame
2967 doesn't match the search filter. The search failed. */
2972 /* We're done scanning the packets; destroy the progress bar if it
2974 if (progbar != NULL)
2975 destroy_progress_dlg(progbar);
2978 if (new_fd != NULL) {
2979 /* We found a frame. Find what row it's in. */
2980 row = packet_list_find_row_from_data(new_fd);
2981 g_assert(row != -1);
2983 /* Select that row, make it the focus row, and make it visible. */
2984 packet_list_set_selected_row(row);
2985 return TRUE; /* success */
2987 return FALSE; /* failure */
2991 cf_goto_frame(capture_file *cf, guint fnumber)
2996 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
2999 if (fdata == NULL) {
3000 /* we didn't find a packet with that packet number */
3001 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3002 "There is no packet with the packet number %u.", fnumber);
3003 return FALSE; /* we failed to go to that packet */
3005 if (!fdata->flags.passed_dfilter) {
3006 /* that packet currently isn't displayed */
3007 /* XXX - add it to the set of displayed packets? */
3008 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3009 "The packet number %u isn't currently being displayed.", fnumber);
3010 return FALSE; /* we failed to go to that packet */
3013 /* We found that packet, and it's currently being displayed.
3014 Find what row it's in. */
3015 row = packet_list_find_row_from_data(fdata);
3016 g_assert(row != -1);
3018 /* Select that row, make it the focus row, and make it visible. */
3019 packet_list_set_selected_row(row);
3020 return TRUE; /* we got to that packet */
3024 cf_goto_top_frame(capture_file *cf)
3028 frame_data *lowest_fdata = NULL;
3030 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3031 if (fdata->flags.passed_dfilter) {
3032 lowest_fdata = fdata;
3037 if (lowest_fdata == NULL) {
3041 /* We found that packet, and it's currently being displayed.
3042 Find what row it's in. */
3043 row = packet_list_find_row_from_data(lowest_fdata);
3044 g_assert(row != -1);
3046 /* Select that row, make it the focus row, and make it visible. */
3047 packet_list_set_selected_row(row);
3048 return TRUE; /* we got to that packet */
3052 cf_goto_bottom_frame(capture_file *cf)
3056 frame_data *highest_fdata = NULL;
3058 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3059 if (fdata->flags.passed_dfilter) {
3060 highest_fdata = fdata;
3064 if (highest_fdata == NULL) {
3068 /* We found that packet, and it's currently being displayed.
3069 Find what row it's in. */
3070 row = packet_list_find_row_from_data(highest_fdata);
3071 g_assert(row != -1);
3073 /* Select that row, make it the focus row, and make it visible. */
3074 packet_list_set_selected_row(row);
3075 return TRUE; /* we got to that packet */
3079 * Go to frame specified by currently selected protocol tree item.
3082 cf_goto_framenum(capture_file *cf)
3084 header_field_info *hfinfo;
3087 if (cf->finfo_selected) {
3088 hfinfo = cf->finfo_selected->hfinfo;
3090 if (hfinfo->type == FT_FRAMENUM) {
3091 framenum = fvalue_get_integer(&cf->finfo_selected->value);
3093 return cf_goto_frame(cf, framenum);
3100 /* Select the packet on a given row. */
3102 cf_select_packet(capture_file *cf, int row)
3108 /* Get the frame data struct pointer for this frame */
3109 fdata = (frame_data *)packet_list_get_row_data(row);
3111 if (fdata == NULL) {
3112 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3113 the first entry is added to it by "real_insert_row()", that row
3114 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3115 our version and the vanilla GTK+ version).
3117 This means that a "select-row" signal is emitted; this causes
3118 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3121 "cf_select_packet()" fetches, above, the data associated with the
3122 row that was selected; however, as "gtk_clist_append()", which
3123 called "real_insert_row()", hasn't yet returned, we haven't yet
3124 associated any data with that row, so we get back a null pointer.
3126 We can't assume that there's only one frame in the frame list,
3127 either, as we may be filtering the display.
3129 We therefore assume that, if "row" is 0, i.e. the first row
3130 is being selected, and "cf->first_displayed" equals
3131 "cf->last_displayed", i.e. there's only one frame being
3132 displayed, that frame is the frame we want.
3134 This means we have to set "cf->first_displayed" and
3135 "cf->last_displayed" before adding the row to the
3136 GtkCList; see the comment in "add_packet_to_packet_list()". */
3138 if (row == 0 && cf->first_displayed == cf->last_displayed)
3139 fdata = cf->first_displayed;
3142 /* If fdata _still_ isn't set simply give up. */
3143 if (fdata == NULL) {
3147 /* Get the data in that frame. */
3148 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
3149 cf->pd, fdata->cap_len, &err, &err_info)) {
3150 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3151 cf_read_error_message(err, err_info), cf->filename);
3155 /* Record that this frame is the current frame. */
3156 cf->current_frame = fdata;
3158 /* Create the logical protocol tree. */
3159 if (cf->edt != NULL) {
3160 epan_dissect_free(cf->edt);
3163 /* We don't need the columns here. */
3164 cf->edt = epan_dissect_new(TRUE, TRUE);
3166 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3169 cf_callback_invoke(cf_cb_packet_selected, cf);
3172 /* Unselect the selected packet, if any. */
3174 cf_unselect_packet(capture_file *cf)
3176 /* Destroy the epan_dissect_t for the unselected packet. */
3177 if (cf->edt != NULL) {
3178 epan_dissect_free(cf->edt);
3182 /* No packet is selected. */
3183 cf->current_frame = NULL;
3185 cf_callback_invoke(cf_cb_packet_unselected, cf);
3187 /* No protocol tree means no selected field. */
3188 cf_unselect_field(cf);
3191 /* Unset the selected protocol tree field, if any. */
3193 cf_unselect_field(capture_file *cf)
3195 cf->finfo_selected = NULL;
3197 cf_callback_invoke(cf_cb_field_unselected, cf);
3201 * Mark a particular frame.
3204 cf_mark_frame(capture_file *cf, frame_data *frame)
3206 if (! frame->flags.marked) {
3207 frame->flags.marked = TRUE;
3208 if (cf->count > cf->marked_count)
3214 * Unmark a particular frame.
3217 cf_unmark_frame(capture_file *cf, frame_data *frame)
3219 if (frame->flags.marked) {
3220 frame->flags.marked = FALSE;
3221 if (cf->marked_count > 0)
3229 } save_callback_args_t;
3232 * Save a capture to a file, in a particular format, saving either
3233 * all packets, all currently-displayed packets, or all marked packets.
3235 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3236 * up a message box for the failure.
3239 save_packet(capture_file *cf _U_, frame_data *fdata,
3240 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3243 save_callback_args_t *args = argsp;
3244 struct wtap_pkthdr hdr;
3247 /* init the wtap header for saving */
3248 hdr.ts = *(struct wtap_nstime *) &fdata->abs_ts;
3249 hdr.caplen = fdata->cap_len;
3250 hdr.len = fdata->pkt_len;
3251 hdr.pkt_encap = fdata->lnk_t;
3253 /* and save the packet */
3254 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3255 cf_write_failure_alert_box(args->fname, err);
3262 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3264 gchar *from_filename;
3268 save_callback_args_t callback_args;
3270 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
3272 /* don't write over an existing file. */
3273 /* this should've been already checked by our caller, just to be sure... */
3274 if (file_exists(fname)) {
3275 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3276 "%sCapture file: \"%s\" already exists!%s\n\n"
3277 "Please choose a different filename.",
3278 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3282 packet_range_process_init(range);
3285 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3286 /* We're not filtering packets, and we're saving it in the format
3287 it's already in, so we can just move or copy the raw data. */
3289 if (cf->is_tempfile) {
3290 /* The file being saved is a temporary file from a live
3291 capture, so it doesn't need to stay around under that name;
3292 first, try renaming the capture buffer file to the new name. */
3294 if (eth_rename(cf->filename, fname) == 0) {
3295 /* That succeeded - there's no need to copy the source file. */
3296 from_filename = NULL;
3299 if (errno == EXDEV) {
3300 /* They're on different file systems, so we have to copy the
3303 from_filename = cf->filename;
3305 /* The rename failed, but not because they're on different
3306 file systems - put up an error message. (Or should we
3307 just punt and try to copy? The only reason why I'd
3308 expect the rename to fail and the copy to succeed would
3309 be if we didn't have permission to remove the file from
3310 the temporary directory, and that might be fixable - but
3311 is it worth requiring the user to go off and fix it?) */
3312 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3313 file_rename_error_message(errno), fname);
3319 from_filename = cf->filename;
3322 /* It's a permanent file, so we should copy it, and not remove the
3325 from_filename = cf->filename;
3329 /* Copy the file, if we haven't moved it. */
3330 if (!copy_binary_file(from_filename, fname))
3334 /* Either we're filtering packets, or we're saving in a different
3335 format; we can't do that by copying or moving the capture file,
3336 we have to do it by writing the packets out in Wiretap. */
3337 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3340 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3344 /* XXX - we let the user save a subset of the packets.
3346 If we do that, should we make that file the current file? If so,
3347 it means we can no longer get at the other packets. What does
3350 /* Iterate through the list of packets, processing the packets we were
3353 XXX - we've already called "packet_range_process_init(range)", but
3354 "process_specified_packets()" will do it again. Fortunately,
3355 that's harmless in this case, as we haven't done anything to
3356 "range" since we initialized it. */
3357 callback_args.pdh = pdh;
3358 callback_args.fname = fname;
3359 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3360 TRUE, save_packet, &callback_args)) {
3363 /* Completed successfully. */
3367 /* The user decided to abort the saving.
3368 XXX - remove the output file? */
3372 /* Error while saving. */
3373 wtap_dump_close(pdh, &err);
3377 if (!wtap_dump_close(pdh, &err)) {
3378 cf_close_failure_alert_box(fname, err);
3383 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
3385 if (packet_range_process_all(range)) {
3386 /* We saved the entire capture, not just some packets from it.
3387 Open and read the file we saved it to.
3389 XXX - this is somewhat of a waste; we already have the
3390 packets, all this gets us is updated file type information
3391 (which we could just stuff into "cf"), and having the new
3392 file be the one we have opened and from which we're reading
3393 the data, and it means we have to spend time opening and
3394 reading the file, which could be a significant amount of
3395 time if the file is large. */
3396 cf->user_saved = TRUE;
3398 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3399 /* XXX - report errors if this fails?
3400 What should we return if it fails or is aborted? */
3401 switch (cf_read(cf)) {
3405 /* Just because we got an error, that doesn't mean we were unable
3406 to read any of the file; we handle what we could get from the
3410 case CF_READ_ABORTED:
3411 /* The user bailed out of re-reading the capture file; the
3412 capture file has been closed - just return (without
3413 changing any menu settings; "cf_close()" set them
3414 correctly for the "no capture file open" state). */
3417 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
3423 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
3428 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3429 gboolean for_writing, int file_type)
3432 /* Wiretap error. */
3435 case WTAP_ERR_NOT_REGULAR_FILE:
3436 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3437 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3441 case WTAP_ERR_RANDOM_OPEN_PIPE:
3442 /* Seen only when opening a capture file for reading. */
3443 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3444 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3448 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3449 /* Seen only when opening a capture file for reading. */
3450 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3451 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3455 case WTAP_ERR_UNSUPPORTED:
3456 /* Seen only when opening a capture file for reading. */
3457 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3458 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3460 filename, err_info);
3464 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3465 /* Seen only when opening a capture file for writing. */
3466 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3467 "The file \"%s\" is a pipe, and %s capture files can't be "
3468 "written to a pipe.",
3469 filename, wtap_file_type_string(file_type));
3472 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3473 /* Seen only when opening a capture file for writing. */
3474 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3475 "Wireshark doesn't support writing capture files in that format.");
3478 case WTAP_ERR_UNSUPPORTED_ENCAP:
3480 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3481 "Wireshark can't save this capture in that format.");
3483 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3484 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3486 filename, err_info);
3491 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3493 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3494 "Wireshark can't save this capture in that format.");
3496 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3497 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3502 case WTAP_ERR_BAD_RECORD:
3503 /* Seen only when opening a capture file for reading. */
3504 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3505 "The file \"%s\" appears to be damaged or corrupt.\n"
3507 filename, err_info);
3511 case WTAP_ERR_CANT_OPEN:
3513 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3514 "The file \"%s\" could not be created for some unknown reason.",
3517 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3518 "The file \"%s\" could not be opened for some unknown reason.",
3523 case WTAP_ERR_SHORT_READ:
3524 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3525 "The file \"%s\" appears to have been cut short"
3526 " in the middle of a packet or other data.",
3530 case WTAP_ERR_SHORT_WRITE:
3531 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3532 "A full header couldn't be written to the file \"%s\".",
3536 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3537 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3538 "Gzip compression not supported by this file type.");
3542 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3543 "The file \"%s\" could not be %s: %s.",
3545 for_writing ? "created" : "opened",
3546 wtap_strerror(err));
3551 open_failure_alert_box(filename, err, for_writing);
3556 file_rename_error_message(int err)
3559 static char errmsg_errno[1024+1];
3564 errmsg = "The path to the file \"%s\" doesn't exist.";
3568 errmsg = "You don't have permission to move the capture file to \"%s\".";
3572 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3573 "The file \"%%s\" could not be moved: %s.",
3574 wtap_strerror(err));
3575 errmsg = errmsg_errno;
3582 cf_read_error_message(int err, const gchar *err_info)
3584 static char errmsg_errno[1024+1];
3588 case WTAP_ERR_UNSUPPORTED_ENCAP:
3589 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3590 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
3594 case WTAP_ERR_BAD_RECORD:
3595 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3596 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
3597 wtap_strerror(err), err_info);
3601 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3602 "An error occurred while reading from the file \"%%s\": %s.",
3603 wtap_strerror(err));
3606 return errmsg_errno;
3610 cf_write_failure_alert_box(const char *filename, int err)
3613 /* Wiretap error. */
3614 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3615 "An error occurred while writing to the file \"%s\": %s.",
3616 filename, wtap_strerror(err));
3619 write_failure_alert_box(filename, err);
3623 /* Check for write errors - if the file is being written to an NFS server,
3624 a write error may not show up until the file is closed, as NFS clients
3625 might not send writes to the server until the "write()" call finishes,
3626 so that the write may fail on the server but the "write()" may succeed. */
3628 cf_close_failure_alert_box(const char *filename, int err)
3631 /* Wiretap error. */
3634 case WTAP_ERR_CANT_CLOSE:
3635 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3636 "The file \"%s\" couldn't be closed for some unknown reason.",
3640 case WTAP_ERR_SHORT_WRITE:
3641 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3642 "Not all the packets could be written to the file \"%s\".",
3647 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3648 "An error occurred while closing the file \"%s\": %s.",
3649 filename, wtap_strerror(err));
3654 We assume that a close error from the OS is really a write error. */
3655 write_failure_alert_box(filename, err);
3659 /* Reload the current capture file. */
3661 cf_reload(capture_file *cf) {
3663 gboolean is_tempfile;
3666 /* If the file could be opened, "cf_open()" calls "cf_close()"
3667 to get rid of state for the old capture file before filling in state
3668 for the new capture file. "cf_close()" will remove the file if
3669 it's a temporary file; we don't want that to happen (for one thing,
3670 it'd prevent subsequent reopens from working). Remember whether it's
3671 a temporary file, mark it as not being a temporary file, and then
3672 reopen it as the type of file it was.
3674 Also, "cf_close()" will free "cf->filename", so we must make
3675 a copy of it first. */
3676 filename = g_strdup(cf->filename);
3677 is_tempfile = cf->is_tempfile;
3678 cf->is_tempfile = FALSE;
3679 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
3680 switch (cf_read(cf)) {
3684 /* Just because we got an error, that doesn't mean we were unable
3685 to read any of the file; we handle what we could get from the
3689 case CF_READ_ABORTED:
3690 /* The user bailed out of re-reading the capture file; the
3691 capture file has been closed - just free the capture file name
3692 string and return (without changing the last containing
3698 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
3699 Instead, the file was left open, so we should restore "cf->is_tempfile"
3702 XXX - change the menu? Presumably "cf_open()" will do that;
3703 make sure it does! */
3704 cf->is_tempfile = is_tempfile;
3706 /* "cf_open()" made a copy of the file name we handed it, so
3707 we should free up our copy. */
3711 /* Copies a file in binary mode, for those operating systems that care about
3713 * Returns TRUE on success, FALSE on failure. If a failure, it also
3714 * displays a simple dialog window with the error message.
3717 copy_binary_file(const char *from_filename, const char *to_filename)
3719 int from_fd, to_fd, nread, nwritten, err;
3722 /* Copy the raw bytes of the file. */
3723 from_fd = eth_open(from_filename, O_RDONLY | O_BINARY, 0000 /* no creation so don't matter */);
3725 open_failure_alert_box(from_filename, errno, FALSE);
3729 /* Use open() instead of creat() so that we can pass the O_BINARY
3730 flag, which is relevant on Win32; it appears that "creat()"
3731 may open the file in text mode, not binary mode, but we want
3732 to copy the raw bytes of the file, so we need the output file
3733 to be open in binary mode. */
3734 to_fd = eth_open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
3736 open_failure_alert_box(to_filename, errno, TRUE);
3741 while ((nread = eth_read(from_fd, pd, sizeof pd)) > 0) {
3742 nwritten = eth_write(to_fd, pd, nread);
3743 if (nwritten < nread) {
3747 err = WTAP_ERR_SHORT_WRITE;
3748 write_failure_alert_box(to_filename, err);
3756 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3757 "An error occurred while reading from the file \"%s\": %s.",
3758 from_filename, strerror(err));
3764 if (eth_close(to_fd) < 0) {
3765 write_failure_alert_box(to_filename, errno);