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"
56 #include <epan/column.h>
57 #include <epan/packet.h>
58 #include "packet-range.h"
64 #include "alert_box.h"
65 #include "simple_dialog.h"
66 #include "progress_dlg.h"
68 #include <epan/prefs.h>
69 #include <epan/dfilter/dfilter.h>
70 #include <epan/conversation.h>
71 #include <epan/epan_dissect.h>
73 #include "stat_menu.h"
74 #include "tap_dfilter_dlg.h"
75 #include <epan/dissectors/packet-data.h>
76 #include <epan/dissectors/packet-ber.h>
77 #include <epan/timestamp.h>
78 #include "file_util.h"
83 gboolean auto_scroll_live;
86 static nstime_t first_ts;
87 static nstime_t prev_dis_ts;
88 static guint32 cum_bytes = 0;
90 static void cf_reset_state(capture_file *cf);
92 static int read_packet(capture_file *cf, dfilter_t *dfcode, gint64 offset);
94 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
95 gboolean refilter, gboolean redissect);
97 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
99 static void match_subtree_text(proto_node *node, gpointer data);
100 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
102 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
104 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
106 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
108 static gboolean match_binary(capture_file *cf, frame_data *fdata,
110 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
112 static gboolean find_packet(capture_file *cf,
113 gboolean (*match_function)(capture_file *, frame_data *, void *),
116 static void cf_open_failure_alert_box(const char *filename, int err,
117 gchar *err_info, gboolean for_writing,
119 static const char *file_rename_error_message(int err);
120 static void cf_write_failure_alert_box(const char *filename, int err);
121 static void cf_close_failure_alert_box(const char *filename, int err);
122 static gboolean copy_binary_file(const char *from_filename, const char *to_filename);
124 /* Update the progress bar this many times when reading a file. */
125 #define N_PROGBAR_UPDATES 100
127 /* Number of "frame_data" structures per memory chunk.
128 XXX - is this the right number? */
129 #define FRAME_DATA_CHUNK_SIZE 1024
132 /* one callback for now, we could have a list later */
133 static cf_callback_t cf_cb = NULL;
134 static gpointer cf_cb_user_data = NULL;
137 cf_callback_invoke(int event, gpointer data)
139 g_assert(cf_cb != NULL);
140 cf_cb(event, data, cf_cb_user_data);
145 cf_callback_add(cf_callback_t func, gpointer user_data)
147 /* More than one callback listener is currently not implemented,
148 but should be easy to do. */
149 g_assert(cf_cb == NULL);
151 cf_cb_user_data = user_data;
155 cf_callback_remove(cf_callback_t func _U_)
157 g_assert(cf_cb != NULL);
159 cf_cb_user_data = NULL;
163 cf_timestamp_auto_precision(capture_file *cf)
165 int prec = timestamp_get_precision();
168 /* don't try to get the file's precision if none is opened */
169 if(cf->state == FILE_CLOSED) {
173 /* if we are in auto mode, set precision of current file */
174 if(prec == TS_PREC_AUTO ||
175 prec == TS_PREC_AUTO_SEC ||
176 prec == TS_PREC_AUTO_DSEC ||
177 prec == TS_PREC_AUTO_CSEC ||
178 prec == TS_PREC_AUTO_MSEC ||
179 prec == TS_PREC_AUTO_USEC ||
180 prec == TS_PREC_AUTO_NSEC)
182 switch(wtap_file_tsprecision(cf->wth)) {
183 case(WTAP_FILE_TSPREC_SEC):
184 timestamp_set_precision(TS_PREC_AUTO_SEC);
186 case(WTAP_FILE_TSPREC_DSEC):
187 timestamp_set_precision(TS_PREC_AUTO_DSEC);
189 case(WTAP_FILE_TSPREC_CSEC):
190 timestamp_set_precision(TS_PREC_AUTO_CSEC);
192 case(WTAP_FILE_TSPREC_MSEC):
193 timestamp_set_precision(TS_PREC_AUTO_MSEC);
195 case(WTAP_FILE_TSPREC_USEC):
196 timestamp_set_precision(TS_PREC_AUTO_USEC);
198 case(WTAP_FILE_TSPREC_NSEC):
199 timestamp_set_precision(TS_PREC_AUTO_NSEC);
202 g_assert_not_reached();
209 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
214 wth = wtap_open_offline(fname, err, &err_info, TRUE);
218 /* The open succeeded. Close whatever capture file we had open,
219 and fill in the information for this file. */
222 /* Initialize all data structures used for dissection. */
225 /* We're about to start reading the file. */
226 cf->state = FILE_READ_IN_PROGRESS;
231 /* Set the file name because we need it to set the follow stream filter.
232 XXX - is that still true? We need it for other reasons, though,
234 cf->filename = g_strdup(fname);
236 /* Indicate whether it's a permanent or temporary file. */
237 cf->is_tempfile = is_tempfile;
239 /* If it's a temporary capture buffer file, mark it as not saved. */
240 cf->user_saved = !is_tempfile;
242 cf->cd_t = wtap_file_type(cf->wth);
244 cf->displayed_count = 0;
245 cf->marked_count = 0;
246 cf->drops_known = FALSE;
248 cf->snap = wtap_snapshot_length(cf->wth);
250 /* Snapshot length not known. */
251 cf->has_snap = FALSE;
252 cf->snap = WTAP_MAX_PACKET_SIZE;
255 nstime_set_zero(&cf->elapsed_time);
256 nstime_set_unset(&first_ts);
257 nstime_set_unset(&prev_dis_ts);
259 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
261 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
263 g_assert(cf->plist_chunk);
265 /* change the time formats now, as we might have a new precision */
266 cf_change_time_formats(cf);
268 fileset_file_opened(fname);
270 if(cf->cd_t == WTAP_FILE_BER) {
271 /* tell the BER dissector the file name */
272 ber_set_filename(cf->filename);
278 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
284 * Reset the state for the currently closed file, but don't do the
285 * UI callbacks; this is for use in "cf_open()", where we don't
286 * want the UI to go from "file open" to "file closed" back to
287 * "file open", we want it to go from "old file open" to "new file
288 * open and being read".
291 cf_reset_state(capture_file *cf)
293 /* Die if we're in the middle of reading a file. */
294 g_assert(cf->state != FILE_READ_IN_PROGRESS);
300 /* We have no file open... */
301 if (cf->filename != NULL) {
302 /* If it's a temporary file, remove it. */
304 eth_unlink(cf->filename);
305 g_free(cf->filename);
308 /* ...which means we have nothing to save. */
309 cf->user_saved = FALSE;
311 if (cf->plist_chunk != NULL) {
312 g_mem_chunk_destroy(cf->plist_chunk);
313 cf->plist_chunk = NULL;
315 if (cf->rfcode != NULL) {
316 dfilter_free(cf->rfcode);
320 cf->plist_end = NULL;
321 cf_unselect_packet(cf); /* nothing to select */
322 cf->first_displayed = NULL;
323 cf->last_displayed = NULL;
325 /* No frame selected, no field in that frame selected. */
326 cf->current_frame = NULL;
327 cf->finfo_selected = NULL;
329 /* Clear the packet list. */
330 packet_list_freeze();
336 nstime_set_zero(&cf->elapsed_time);
338 reset_tap_listeners();
340 /* We have no file open. */
341 cf->state = FILE_CLOSED;
343 fileset_file_closed();
346 /* Reset everything to a pristine state */
348 cf_close(capture_file *cf)
350 /* do GUI things even if file is already closed,
351 * e.g. to cleanup things if a capture couldn't be started */
352 cf_callback_invoke(cf_cb_file_closing, cf);
354 /* close things, if not already closed before */
355 if(cf->state != FILE_CLOSED) {
357 color_filters_cleanup();
361 cleanup_dissection();
364 cf_callback_invoke(cf_cb_file_closed, cf);
367 /* an out of memory exception occured, wait for a user button press to exit */
368 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
374 cf_read(capture_file *cf)
378 const gchar *name_ptr;
380 char errmsg_errno[1024+1];
381 gchar err_str[2048+1];
383 progdlg_t *volatile progbar = NULL;
385 volatile gint64 size;
387 volatile float progbar_val;
389 gchar status_str[100];
390 volatile gint64 progbar_nextstep;
391 volatile gint64 progbar_quantum;
394 /* Compile the current display filter.
395 * We assume this will not fail since cf->dfilter is only set in
396 * cf_filter IFF the filter was valid.
400 dfilter_compile(cf->dfilter, &dfcode);
405 reset_tap_listeners();
406 tap_dfilter_dlg_update();
408 cf_callback_invoke(cf_cb_file_read_start, cf);
410 name_ptr = get_basename(cf->filename);
412 /* Find the size of the file. */
413 size = wtap_file_size(cf->wth, NULL);
415 /* Update the progress bar when it gets to this value. */
416 progbar_nextstep = 0;
417 /* When we reach the value that triggers a progress bar update,
418 bump that value by this amount. */
420 progbar_quantum = size/N_PROGBAR_UPDATES;
423 /* Progress so far. */
426 packet_list_freeze();
429 g_get_current_time(&start_time);
431 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
433 /* Create the progress bar if necessary.
434 We check on every iteration of the loop, so that it takes no
435 longer than the standard time to create it (otherwise, for a
436 large file, we might take considerably longer than that standard
437 time in order to get to the next progress bar step). */
438 if (progbar == NULL) {
439 progbar = delayed_create_progress_dlg("Loading", name_ptr,
440 TRUE, &stop_flag, &start_time, progbar_val);
443 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
444 when we update it, we have to run the GTK+ main loop to get it
445 to repaint what's pending, and doing so may involve an "ioctl()"
446 to see if there's any pending input from an X server, and doing
447 that for every packet can be costly, especially on a big file. */
448 if (data_offset >= progbar_nextstep) {
449 file_pos = wtap_read_so_far(cf->wth, NULL);
450 progbar_val = (gfloat) file_pos / (gfloat) size;
451 if (progbar_val > 1.0) {
452 /* The file probably grew while we were reading it.
453 Update file size, and try again. */
454 size = wtap_file_size(cf->wth, NULL);
456 progbar_val = (gfloat) file_pos / (gfloat) size;
457 /* If it's still > 1, either "wtap_file_size()" failed (in which
458 case there's not much we can do about it), or the file
459 *shrank* (in which case there's not much we can do about
460 it); just clip the progress value at 1.0. */
461 if (progbar_val > 1.0)
464 if (progbar != NULL) {
465 /* update the packet lists content on the first run or frequently on very large files */
466 /* (on smaller files the display update takes longer than reading the file) */
468 if(progbar_quantum > 500000 || progbar_nextstep == 0) {
470 if (auto_scroll_live && cf->plist_end != NULL)
471 packet_list_moveto_end();
472 packet_list_freeze();
476 g_snprintf(status_str, sizeof(status_str),
477 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
478 file_pos / 1024, size / 1024);
479 update_progress_dlg(progbar, progbar_val, status_str);
481 progbar_nextstep += progbar_quantum;
486 /* Well, the user decided to abort the read. He/She will be warned and
487 it might be enough for him/her to work with the already loaded
489 This is especially true for very large capture files, where you don't
490 want to wait loading the whole file (which may last minutes or even
491 hours even on fast machines) just to see that it was the wrong file. */
495 read_packet(cf, dfcode, data_offset);
497 CATCH(OutOfMemoryError) {
500 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
501 "%sOut Of Memory!%s\n"
503 "Sorry, but Wireshark has to terminate now!\n"
505 "Some infos / workarounds can be found at:\n"
506 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
507 simple_dialog_primary_start(), simple_dialog_primary_end());
508 /* we have to terminate, as we cannot recover from the memory error */
509 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
511 main_window_update();
512 /* XXX - how to avoid a busy wait? */
520 /* Cleanup and release all dfilter resources */
522 dfilter_free(dfcode);
525 /* We're done reading the file; destroy the progress bar if it was created. */
527 destroy_progress_dlg(progbar);
529 /* We're done reading sequentially through the file. */
530 cf->state = FILE_READ_DONE;
532 /* Close the sequential I/O side, to free up memory it requires. */
533 wtap_sequential_close(cf->wth);
535 /* Allow the protocol dissectors to free up memory that they
536 * don't need after the sequential run-through of the packets. */
537 postseq_cleanup_all_protocols();
539 /* Set the file encapsulation type now; we don't know what it is until
540 we've looked at all the packets, as we don't know until then whether
541 there's more than one type (and thus whether it's
542 WTAP_ENCAP_PER_PACKET). */
543 cf->lnk_t = wtap_file_encap(cf->wth);
545 cf->current_frame = cf->first_displayed;
548 cf_callback_invoke(cf_cb_file_read_finished, cf);
550 /* If we have any displayed packets to select, select the first of those
551 packets by making the first row the selected row. */
552 if (cf->first_displayed != NULL)
553 packet_list_select_row(0);
556 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
557 "%sFile loading was cancelled!%s\n"
559 "The remaining packets in the file were discarded.\n"
561 "As a lot of packets from the original file will be missing,\n"
562 "remember to be careful when saving the current content to a file.\n",
563 simple_dialog_primary_start(), simple_dialog_primary_end());
564 return CF_READ_ERROR;
568 /* Put up a message box noting that the read failed somewhere along
569 the line. Don't throw out the stuff we managed to read, though,
573 case WTAP_ERR_UNSUPPORTED_ENCAP:
574 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
575 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
578 errmsg = errmsg_errno;
581 case WTAP_ERR_CANT_READ:
582 errmsg = "An attempt to read from the capture file failed for"
583 " some unknown reason.";
586 case WTAP_ERR_SHORT_READ:
587 errmsg = "The capture file appears to have been cut short"
588 " in the middle of a packet.";
591 case WTAP_ERR_BAD_RECORD:
592 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
593 "The capture file appears to be damaged or corrupt.\n(%s)",
596 errmsg = errmsg_errno;
600 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
601 "An error occurred while reading the"
602 " capture file: %s.", wtap_strerror(err));
603 errmsg = errmsg_errno;
606 g_snprintf(err_str, sizeof err_str, errmsg);
607 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, err_str);
608 return CF_READ_ERROR;
615 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
617 cf_status_t cf_status;
619 cf_status = cf_open(cf, fname, is_tempfile, err);
624 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
626 gint64 data_offset = 0;
628 volatile int newly_displayed_packets = 0;
632 /* Compile the current display filter.
633 * We assume this will not fail since cf->dfilter is only set in
634 * cf_filter IFF the filter was valid.
638 dfilter_compile(cf->dfilter, &dfcode);
643 at_end = packet_list_at_end();
644 packet_list_freeze();
646 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
648 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
649 if (cf->state == FILE_READ_ABORTED) {
650 /* Well, the user decided to exit Wireshark. Break out of the
651 loop, and let the code below (which is called even if there
652 aren't any packets left to read) exit. */
656 if (read_packet(cf, dfcode, data_offset) != -1) {
657 newly_displayed_packets++;
660 CATCH(OutOfMemoryError) {
663 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
664 "%sOut Of Memory!%s\n"
666 "Sorry, but Wireshark has to terminate now!\n"
668 "The capture file is not lost, it can be found at:\n"
671 "Some infos / workarounds can be found at:\n"
672 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
673 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
674 /* we have to terminate, as we cannot recover from the memory error */
675 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
677 main_window_update();
678 /* XXX - how to avoid a busy wait? */
682 return CF_READ_ABORTED;
688 /* Cleanup and release all dfilter resources */
690 dfilter_free(dfcode);
693 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
694 cf->count, cf->state, *err);*/
696 /* XXX - this causes "flickering" of the list */
699 /* moving to the end of the packet list - if the user requested so and
700 we have some new packets.
701 this doesn't seem to work well with a frozen GTK_Clist, so do this after
702 packet_list_thaw() is done, see bugzilla 1188 */
703 /* XXX - this cheats and looks inside the packet list to find the final
705 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL && at_end)
706 packet_list_moveto_end();
708 if (cf->state == FILE_READ_ABORTED) {
709 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
710 so that our caller can kill off the capture child process;
711 this will cause an EOF on the pipe from the child, so
712 "cf_finish_tail()" will be called, and it will clean up
714 return CF_READ_ABORTED;
715 } else if (*err != 0) {
716 /* We got an error reading the capture file.
717 XXX - pop up a dialog box instead? */
718 g_warning("Error \"%s\" while reading: \"%s\"\n",
719 wtap_strerror(*err), cf->filename);
721 return CF_READ_ERROR;
727 cf_finish_tail(capture_file *cf, int *err)
734 /* Compile the current display filter.
735 * We assume this will not fail since cf->dfilter is only set in
736 * cf_filter IFF the filter was valid.
740 dfilter_compile(cf->dfilter, &dfcode);
743 if(cf->wth == NULL) {
745 return CF_READ_ERROR;
748 at_end = packet_list_at_end();
749 packet_list_freeze();
751 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
752 if (cf->state == FILE_READ_ABORTED) {
753 /* Well, the user decided to abort the read. Break out of the
754 loop, and let the code below (which is called even if there
755 aren't any packets left to read) exit. */
758 read_packet(cf, dfcode, data_offset);
761 /* Cleanup and release all dfilter resources */
763 dfilter_free(dfcode);
768 if (cf->state == FILE_READ_ABORTED) {
769 /* Well, the user decided to abort the read. We're only called
770 when the child capture process closes the pipe to us (meaning
771 it's probably exited), so we can just close the capture
772 file; we return CF_READ_ABORTED so our caller can do whatever
773 is appropriate when that happens. */
775 return CF_READ_ABORTED;
778 if (auto_scroll_live && cf->plist_end != NULL && at_end)
779 /* XXX - this cheats and looks inside the packet list to find the final
781 packet_list_moveto_end();
783 /* We're done reading sequentially through the file. */
784 cf->state = FILE_READ_DONE;
786 /* We're done reading sequentially through the file; close the
787 sequential I/O side, to free up memory it requires. */
788 wtap_sequential_close(cf->wth);
790 /* Allow the protocol dissectors to free up memory that they
791 * don't need after the sequential run-through of the packets. */
792 postseq_cleanup_all_protocols();
794 /* Set the file encapsulation type now; we don't know what it is until
795 we've looked at all the packets, as we don't know until then whether
796 there's more than one type (and thus whether it's
797 WTAP_ENCAP_PER_PACKET). */
798 cf->lnk_t = wtap_file_encap(cf->wth);
801 /* We got an error reading the capture file.
802 XXX - pop up a dialog box? */
803 return CF_READ_ERROR;
808 #endif /* HAVE_LIBPCAP */
811 cf_get_display_name(capture_file *cf)
813 const gchar *displayname;
815 /* Return a name to use in displays */
816 if (!cf->is_tempfile) {
817 /* Get the last component of the file name, and use that. */
819 displayname = get_basename(cf->filename);
821 displayname="(No file)";
824 /* The file we read is a temporary file from a live capture;
825 we don't mention its name. */
826 displayname = "(Untitled)";
831 /* XXX - use a macro instead? */
833 cf_get_packet_count(capture_file *cf)
838 /* XXX - use a macro instead? */
840 cf_set_packet_count(capture_file *cf, int packet_count)
842 cf->count = packet_count;
845 /* XXX - use a macro instead? */
847 cf_is_tempfile(capture_file *cf)
849 return cf->is_tempfile;
852 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
854 cf->is_tempfile = is_tempfile;
858 /* XXX - use a macro instead? */
859 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
861 cf->drops_known = drops_known;
864 /* XXX - use a macro instead? */
865 void cf_set_drops(capture_file *cf, guint32 drops)
870 /* XXX - use a macro instead? */
871 gboolean cf_get_drops_known(capture_file *cf)
873 return cf->drops_known;
876 /* XXX - use a macro instead? */
877 guint32 cf_get_drops(capture_file *cf)
882 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
888 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
890 union wtap_pseudo_header *pseudo_header, const guchar *buf,
894 gboolean create_proto_tree = FALSE;
897 /* just add some value here until we know if it is being displayed or not */
898 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
900 /* If we don't have the time stamp of the first packet in the
901 capture, it's because this is the first packet. Save the time
902 stamp of this packet as the time stamp of the first packet. */
903 if (nstime_is_unset(&first_ts)) {
904 first_ts = fdata->abs_ts;
906 /* if this frames is marked as a reference time frame, reset
907 firstsec and firstusec to this frame */
908 if(fdata->flags.ref_time){
909 first_ts = fdata->abs_ts;
912 /* If we don't have the time stamp of the previous displayed packet,
913 it's because this is the first displayed packet. Save the time
914 stamp of this packet as the time stamp of the previous displayed
916 if (nstime_is_unset(&prev_dis_ts)) {
917 prev_dis_ts = fdata->abs_ts;
920 /* Get the time elapsed between the first packet and this packet. */
921 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
923 /* If it's greater than the current elapsed time, set the elapsed time
924 to it (we check for "greater than" so as not to be confused by
925 time moving backwards). */
926 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
927 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
928 cf->elapsed_time = fdata->rel_ts;
931 /* Get the time elapsed between the previous displayed packet and
933 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
937 we have a display filter and are re-applying it;
939 we have a list of color filters;
941 we have tap listeners;
943 allocate a protocol tree root node, so that we'll construct
944 a protocol tree against which a filter expression can be
946 if ((dfcode != NULL && refilter) || color_filters_used()
947 || num_tap_filters != 0)
948 create_proto_tree = TRUE;
950 /* Dissect the frame. */
951 edt = epan_dissect_new(create_proto_tree, FALSE);
953 if (dfcode != NULL && refilter) {
954 epan_dissect_prime_dfilter(edt, dfcode);
956 /* prepare color filters */
957 if (color_filters_used()) {
958 color_filters_prime_edt(edt);
961 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
962 tap_push_tapped_queue(edt);
964 /* If we have a display filter, apply it if we're refiltering, otherwise
965 leave the "passed_dfilter" flag alone.
967 If we don't have a display filter, set "passed_dfilter" to 1. */
968 if (dfcode != NULL) {
970 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, edt) ? 1 : 0;
973 fdata->flags.passed_dfilter = 1;
975 if( (fdata->flags.passed_dfilter)
976 || (edt->pi.fd->flags.ref_time) ){
977 /* This frame either passed the display filter list or is marked as
978 a time reference frame. All time reference frames are displayed
979 even if they dont pass the display filter */
980 /* if this was a TIME REF frame we should reset the cul bytes field */
981 if(edt->pi.fd->flags.ref_time){
982 cum_bytes = fdata->pkt_len;
983 fdata->cum_bytes = cum_bytes;
986 /* increase cum_bytes with this packets length */
987 cum_bytes += fdata->pkt_len;
989 epan_dissect_fill_in_columns(edt);
991 /* If we haven't yet seen the first frame, this is it.
993 XXX - we must do this before we add the row to the display,
994 as, if the display's GtkCList's selection mode is
995 GTK_SELECTION_BROWSE, when the first entry is added to it,
996 "cf_select_packet()" will be called, and it will fetch the row
997 data for the 0th row, and will get a null pointer rather than
998 "fdata", as "gtk_clist_append()" won't yet have returned and
999 thus "gtk_clist_set_row_data()" won't yet have been called.
1001 We thus need to leave behind bread crumbs so that
1002 "cf_select_packet()" can find this frame. See the comment
1003 in "cf_select_packet()". */
1004 if (cf->first_displayed == NULL)
1005 cf->first_displayed = fdata;
1007 /* This is the last frame we've seen so far. */
1008 cf->last_displayed = fdata;
1010 row = packet_list_append(cf->cinfo.col_data, fdata);
1012 /* colorize packet: if packet is marked, use preferences,
1013 otherwise try to apply color filters */
1014 if (fdata->flags.marked) {
1015 fdata->color_filter = NULL;
1016 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1018 fdata->color_filter = color_filters_colorize_packet(row, edt);
1021 /* Set the time of the previous displayed frame to the time of this
1023 prev_dis_ts = fdata->abs_ts;
1025 cf->displayed_count++;
1027 /* This frame didn't pass the display filter, so it's not being added
1028 to the clist, and thus has no row. */
1031 epan_dissect_free(edt);
1035 /* read in a new packet */
1036 /* returns the row of the new packet in the packet list or -1 if not displayed */
1038 read_packet(capture_file *cf, dfilter_t *dfcode, gint64 offset)
1040 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1041 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1042 const guchar *buf = wtap_buf_ptr(cf->wth);
1045 frame_data *plist_end;
1046 epan_dissect_t *edt;
1049 /* Allocate the next list entry, and add it to the list. */
1050 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1056 fdata->pkt_len = phdr->len;
1057 fdata->cap_len = phdr->caplen;
1058 fdata->file_off = offset;
1059 fdata->lnk_t = phdr->pkt_encap;
1060 fdata->flags.encoding = CHAR_ASCII;
1061 fdata->flags.visited = 0;
1062 fdata->flags.marked = 0;
1063 fdata->flags.ref_time = 0;
1064 fdata->color_filter = NULL;
1066 fdata->abs_ts.secs = phdr->ts.secs;
1067 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1069 if (cf->plist_end != NULL)
1070 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &cf->plist_end->abs_ts);
1072 nstime_set_zero(&fdata->del_cap_ts);
1076 edt = epan_dissect_new(TRUE, FALSE);
1077 epan_dissect_prime_dfilter(edt, cf->rfcode);
1078 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
1079 passed = dfilter_apply_edt(cf->rfcode, edt);
1080 epan_dissect_free(edt);
1083 plist_end = cf->plist_end;
1084 fdata->prev = plist_end;
1085 if (plist_end != NULL)
1086 plist_end->next = fdata;
1089 cf->plist_end = fdata;
1092 cf->f_datalen = offset + phdr->caplen;
1093 fdata->num = cf->count;
1094 row = add_packet_to_packet_list(fdata, cf, dfcode, pseudo_header, buf, TRUE);
1096 /* XXX - if we didn't have read filters, or if we could avoid
1097 allocating the "frame_data" structure until we knew whether
1098 the frame passed the read filter, we could use a G_ALLOC_ONLY
1101 ...but, at least in one test I did, where I just made the chunk
1102 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1103 seem to save a noticeable amount of time or space. */
1104 g_mem_chunk_free(cf->plist_chunk, fdata);
1111 cf_merge_files(char **out_filenamep, int in_file_count,
1112 char *const *in_filenames, int file_type, gboolean do_append)
1114 merge_in_file_t *in_files;
1117 char tmpname[128+1];
1120 int open_err, read_err, write_err, close_err;
1124 char errmsg_errno[1024+1];
1125 gchar err_str[2048+1];
1127 gboolean got_read_error = FALSE, got_write_error = FALSE;
1129 progdlg_t *progbar = NULL;
1131 gint64 f_len, file_pos;
1133 GTimeVal start_time;
1134 gchar status_str[100];
1135 gint64 progbar_nextstep;
1136 gint64 progbar_quantum;
1138 /* open the input files */
1139 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1140 &open_err, &err_info, &err_fileno)) {
1142 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1147 if (*out_filenamep != NULL) {
1148 out_filename = *out_filenamep;
1149 out_fd = eth_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1153 out_fd = create_tempfile(tmpname, sizeof tmpname, "ether");
1156 out_filename = g_strdup(tmpname);
1157 *out_filenamep = out_filename;
1161 merge_close_in_files(in_file_count, in_files);
1163 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1167 pdh = wtap_dump_fdopen(out_fd, file_type,
1168 merge_select_frame_type(in_file_count, in_files),
1169 merge_max_snapshot_length(in_file_count, in_files),
1170 FALSE /* compressed */, &open_err);
1173 merge_close_in_files(in_file_count, in_files);
1175 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1180 /* Get the sum of the sizes of all the files. */
1182 for (i = 0; i < in_file_count; i++)
1183 f_len += in_files[i].size;
1185 /* Update the progress bar when it gets to this value. */
1186 progbar_nextstep = 0;
1187 /* When we reach the value that triggers a progress bar update,
1188 bump that value by this amount. */
1189 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1190 /* Progress so far. */
1194 g_get_current_time(&start_time);
1196 /* do the merge (or append) */
1199 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1202 wth = merge_read_packet(in_file_count, in_files, &read_err,
1206 got_read_error = TRUE;
1210 /* Get the sum of the data offsets in all of the files. */
1212 for (i = 0; i < in_file_count; i++)
1213 data_offset += in_files[i].data_offset;
1215 /* Create the progress bar if necessary.
1216 We check on every iteration of the loop, so that it takes no
1217 longer than the standard time to create it (otherwise, for a
1218 large file, we might take considerably longer than that standard
1219 time in order to get to the next progress bar step). */
1220 if (progbar == NULL) {
1221 progbar = delayed_create_progress_dlg("Merging", "files",
1222 FALSE, &stop_flag, &start_time, progbar_val);
1225 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1226 when we update it, we have to run the GTK+ main loop to get it
1227 to repaint what's pending, and doing so may involve an "ioctl()"
1228 to see if there's any pending input from an X server, and doing
1229 that for every packet can be costly, especially on a big file. */
1230 if (data_offset >= progbar_nextstep) {
1231 /* Get the sum of the seek positions in all of the files. */
1233 for (i = 0; i < in_file_count; i++)
1234 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1235 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1236 if (progbar_val > 1.0) {
1237 /* Some file probably grew while we were reading it.
1238 That "shouldn't happen", so we'll just clip the progress
1242 if (progbar != NULL) {
1243 g_snprintf(status_str, sizeof(status_str),
1244 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1245 file_pos / 1024, f_len / 1024);
1246 update_progress_dlg(progbar, progbar_val, status_str);
1248 progbar_nextstep += progbar_quantum;
1252 /* Well, the user decided to abort the merge. */
1256 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1257 wtap_buf_ptr(wth), &write_err)) {
1258 got_write_error = TRUE;
1263 /* We're done merging the files; destroy the progress bar if it was created. */
1264 if (progbar != NULL)
1265 destroy_progress_dlg(progbar);
1267 merge_close_in_files(in_file_count, in_files);
1268 if (!got_read_error && !got_write_error) {
1269 if (!wtap_dump_close(pdh, &write_err))
1270 got_write_error = TRUE;
1272 wtap_dump_close(pdh, &close_err);
1274 if (got_read_error) {
1276 * Find the file on which we got the error, and report the error.
1278 for (i = 0; i < in_file_count; i++) {
1279 if (in_files[i].state == GOT_ERROR) {
1280 /* Put up a message box noting that a read failed somewhere along
1284 case WTAP_ERR_UNSUPPORTED_ENCAP:
1285 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1286 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1289 errmsg = errmsg_errno;
1292 case WTAP_ERR_CANT_READ:
1293 errmsg = "An attempt to read from the capture file %s failed for"
1294 " some unknown reason.";
1297 case WTAP_ERR_SHORT_READ:
1298 errmsg = "The capture file %s appears to have been cut short"
1299 " in the middle of a packet.";
1302 case WTAP_ERR_BAD_RECORD:
1303 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1304 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1307 errmsg = errmsg_errno;
1311 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1312 "An error occurred while reading the"
1313 " capture file %%s: %s.", wtap_strerror(read_err));
1314 errmsg = errmsg_errno;
1317 g_snprintf(err_str, sizeof err_str, errmsg, in_files[i].filename);
1318 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, err_str);
1323 if (got_write_error) {
1324 /* Put up an alert box for the write error. */
1325 cf_write_failure_alert_box(out_filename, write_err);
1328 if (got_read_error || got_write_error || stop_flag) {
1329 /* Callers aren't expected to treat an error or an explicit abort
1330 differently - we put up error dialogs ourselves, so they don't
1338 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1340 const char *filter_new = dftext ? dftext : "";
1341 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1344 /* if new filter equals old one, do nothing unless told to do so */
1345 if (!force && strcmp(filter_new, filter_old) == 0) {
1351 if (dftext == NULL) {
1352 /* The new filter is an empty filter (i.e., display all packets).
1353 * so leave dfcode==NULL
1357 * We have a filter; make a copy of it (as we'll be saving it),
1358 * and try to compile it.
1360 dftext = g_strdup(dftext);
1361 if (!dfilter_compile(dftext, &dfcode)) {
1362 /* The attempt failed; report an error. */
1363 gchar *safe_dftext = simple_dialog_format_message(dftext);
1364 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1366 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1369 "The following display filter isn't a valid display filter:\n%s\n"
1370 "See the help for a description of the display filter syntax.",
1371 simple_dialog_primary_start(), safe_dfilter_error_msg,
1372 simple_dialog_primary_end(), safe_dftext);
1373 g_free(safe_dfilter_error_msg);
1374 g_free(safe_dftext);
1380 if (dfcode == NULL) {
1381 /* Yes - free the filter text, and set it to null. */
1387 /* We have a valid filter. Replace the current filter. */
1388 if (cf->dfilter != NULL)
1389 g_free(cf->dfilter);
1390 cf->dfilter = dftext;
1392 /* Now rescan the packet list, applying the new filter, but not
1393 throwing away information constructed on a previous pass. */
1394 if (dftext == NULL) {
1395 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1397 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1400 /* Cleanup and release all dfilter resources */
1401 if (dfcode != NULL){
1402 dfilter_free(dfcode);
1408 cf_colorize_packets(capture_file *cf)
1410 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1414 cf_reftime_packets(capture_file *cf)
1416 rescan_packets(cf, "Updating Reftime", "all packets", FALSE, FALSE);
1420 cf_redissect_packets(capture_file *cf)
1422 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1425 /* Rescan the list of packets, reconstructing the CList.
1427 "action" describes why we're doing this; it's used in the progress
1430 "action_item" describes what we're doing; it's used in the progress
1433 "refilter" is TRUE if we need to re-evaluate the filter expression.
1435 "redissect" is TRUE if we need to make the dissectors reconstruct
1436 any state information they have (because a preference that affects
1437 some dissector has changed, meaning some dissector might construct
1438 its state differently from the way it was constructed the last time). */
1440 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1441 gboolean refilter, gboolean redissect)
1444 progdlg_t *progbar = NULL;
1449 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1450 int selected_row, prev_row, preceding_row, following_row;
1451 gboolean selected_frame_seen;
1454 GTimeVal start_time;
1455 gchar status_str[100];
1456 int progbar_nextstep;
1457 int progbar_quantum;
1460 /* Compile the current display filter.
1461 * We assume this will not fail since cf->dfilter is only set in
1462 * cf_filter IFF the filter was valid.
1466 dfilter_compile(cf->dfilter, &dfcode);
1470 reset_tap_listeners();
1471 /* Which frame, if any, is the currently selected frame?
1472 XXX - should the selected frame or the focus frame be the "current"
1473 frame, that frame being the one from which "Find Frame" searches
1475 selected_frame = cf->current_frame;
1477 /* We don't yet know what row that frame will be on, if any, after we
1478 rebuild the clist, however. */
1482 /* We need to re-initialize all the state information that protocols
1483 keep, because some preference that controls a dissector has changed,
1484 which might cause the state information to be constructed differently
1485 by that dissector. */
1487 /* Initialize all data structures used for dissection. */
1491 /* Freeze the packet list while we redo it, so we don't get any
1492 screen updates while it happens. */
1493 packet_list_freeze();
1496 packet_list_clear();
1498 /* We don't yet know which will be the first and last frames displayed. */
1499 cf->first_displayed = NULL;
1500 cf->last_displayed = NULL;
1502 /* We currently don't display any packets */
1503 cf->displayed_count = 0;
1505 /* Iterate through the list of frames. Call a routine for each frame
1506 to check whether it should be displayed and, if so, add it to
1507 the display list. */
1508 nstime_set_unset(&first_ts);
1509 nstime_set_unset(&prev_dis_ts);
1511 /* Update the progress bar when it gets to this value. */
1512 progbar_nextstep = 0;
1513 /* When we reach the value that triggers a progress bar update,
1514 bump that value by this amount. */
1515 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1516 /* Count of packets at which we've looked. */
1518 /* Progress so far. */
1522 g_get_current_time(&start_time);
1524 row = -1; /* no previous row yet */
1529 preceding_frame = NULL;
1531 following_frame = NULL;
1533 selected_frame_seen = FALSE;
1535 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1536 /* Create the progress bar if necessary.
1537 We check on every iteration of the loop, so that it takes no
1538 longer than the standard time to create it (otherwise, for a
1539 large file, we might take considerably longer than that standard
1540 time in order to get to the next progress bar step). */
1541 if (progbar == NULL)
1542 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1543 &stop_flag, &start_time,
1546 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1547 when we update it, we have to run the GTK+ main loop to get it
1548 to repaint what's pending, and doing so may involve an "ioctl()"
1549 to see if there's any pending input from an X server, and doing
1550 that for every packet can be costly, especially on a big file. */
1551 if (count >= progbar_nextstep) {
1552 /* let's not divide by zero. I should never be started
1553 * with count == 0, so let's assert that
1555 g_assert(cf->count > 0);
1556 progbar_val = (gfloat) count / cf->count;
1558 if (progbar != NULL) {
1559 g_snprintf(status_str, sizeof(status_str),
1560 "%4u of %u frames", count, cf->count);
1561 update_progress_dlg(progbar, progbar_val, status_str);
1564 progbar_nextstep += progbar_quantum;
1568 /* Well, the user decided to abort the filtering. Just stop.
1570 XXX - go back to the previous filter? Users probably just
1571 want not to wait for a filtering operation to finish;
1572 unless we cancel by having no filter, reverting to the
1573 previous filter will probably be even more expensive than
1574 continuing the filtering, as it involves going back to the
1575 beginning and filtering, and even with no filter we currently
1576 have to re-generate the entire clist, which is also expensive.
1578 I'm not sure what Network Monitor does, but it doesn't appear
1579 to give you an unfiltered display if you cancel. */
1586 /* Since all state for the frame was destroyed, mark the frame
1587 * as not visited, free the GSList referring to the state
1588 * data (the per-frame data itself was freed by
1589 * "init_dissection()"), and null out the GSList pointer. */
1590 fdata->flags.visited = 0;
1592 g_slist_free(fdata->pfd);
1597 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1598 cf->pd, fdata->cap_len, &err, &err_info)) {
1599 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1600 cf_read_error_message(err, err_info), cf->filename);
1604 /* If the previous frame is displayed, and we haven't yet seen the
1605 selected frame, remember that frame - it's the closest one we've
1606 yet seen before the selected frame. */
1607 if (prev_row != -1 && !selected_frame_seen) {
1608 preceding_row = prev_row;
1609 preceding_frame = prev_frame;
1611 row = add_packet_to_packet_list(fdata, cf, dfcode, &cf->pseudo_header, cf->pd,
1614 /* If this frame is displayed, and this is the first frame we've
1615 seen displayed after the selected frame, remember this frame -
1616 it's the closest one we've yet seen at or after the selected
1618 if (row != -1 && selected_frame_seen && following_row == -1) {
1619 following_row = row;
1620 following_frame = fdata;
1622 if (fdata == selected_frame) {
1624 selected_frame_seen = TRUE;
1627 /* Remember this row/frame - it'll be the previous row/frame
1628 on the next pass through the loop. */
1633 /* Re-sort the list using the previously selected order */
1634 packet_list_set_sort_column();
1637 /* Clear out what remains of the visited flags and per-frame data
1640 XXX - that may cause various forms of bogosity when dissecting
1641 these frames, as they won't have been seen by this sequential
1642 pass, but the only alternative I see is to keep scanning them
1643 even though the user requested that the scan stop, and that
1644 would leave the user stuck with an Wireshark grinding on
1645 until it finishes. Should we just stick them with that? */
1646 for (; fdata != NULL; fdata = fdata->next) {
1647 fdata->flags.visited = 0;
1649 g_slist_free(fdata->pfd);
1655 /* We're done filtering the packets; destroy the progress bar if it
1657 if (progbar != NULL)
1658 destroy_progress_dlg(progbar);
1660 /* Unfreeze the packet list. */
1663 if (selected_row == -1) {
1664 /* The selected frame didn't pass the filter. */
1665 if (selected_frame == NULL) {
1666 /* That's because there *was* no selected frame. Make the first
1667 displayed frame the current frame. */
1670 /* Find the nearest displayed frame to the selected frame (whether
1671 it's before or after that frame) and make that the current frame.
1672 If the next and previous displayed frames are equidistant from the
1673 selected frame, choose the next one. */
1674 g_assert(following_frame == NULL ||
1675 following_frame->num >= selected_frame->num);
1676 g_assert(preceding_frame == NULL ||
1677 preceding_frame->num <= selected_frame->num);
1678 if (following_frame == NULL) {
1679 /* No frame after the selected frame passed the filter, so we
1680 have to select the last displayed frame before the selected
1682 selected_row = preceding_row;
1683 } else if (preceding_frame == NULL) {
1684 /* No frame before the selected frame passed the filter, so we
1685 have to select the first displayed frame after the selected
1687 selected_row = following_row;
1689 /* Frames before and after the selected frame passed the filter, so
1690 we'll select the previous frame */
1691 selected_row = preceding_row;
1696 if (selected_row == -1) {
1697 /* There are no frames displayed at all. */
1698 cf_unselect_packet(cf);
1700 /* Either the frame that was selected passed the filter, or we've
1701 found the nearest displayed frame to that frame. Select it, make
1702 it the focus row, and make it visible. */
1703 packet_list_set_selected_row(selected_row);
1706 /* Cleanup and release all dfilter resources */
1707 if (dfcode != NULL){
1708 dfilter_free(dfcode);
1719 process_specified_packets(capture_file *cf, packet_range_t *range,
1720 const char *string1, const char *string2, gboolean terminate_is_stop,
1721 gboolean (*callback)(capture_file *, frame_data *,
1722 union wtap_pseudo_header *, const guint8 *, void *),
1723 void *callback_args)
1728 union wtap_pseudo_header pseudo_header;
1729 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
1730 psp_return_t ret = PSP_FINISHED;
1732 progdlg_t *progbar = NULL;
1735 gboolean progbar_stop_flag;
1736 GTimeVal progbar_start_time;
1737 gchar progbar_status_str[100];
1738 int progbar_nextstep;
1739 int progbar_quantum;
1740 range_process_e process_this;
1742 /* Update the progress bar when it gets to this value. */
1743 progbar_nextstep = 0;
1744 /* When we reach the value that triggers a progress bar update,
1745 bump that value by this amount. */
1746 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1747 /* Count of packets at which we've looked. */
1749 /* Progress so far. */
1752 progbar_stop_flag = FALSE;
1753 g_get_current_time(&progbar_start_time);
1755 packet_range_process_init(range);
1757 /* Iterate through the list of packets, printing the packets that
1758 were selected by the current display filter. */
1759 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1760 /* Create the progress bar if necessary.
1761 We check on every iteration of the loop, so that it takes no
1762 longer than the standard time to create it (otherwise, for a
1763 large file, we might take considerably longer than that standard
1764 time in order to get to the next progress bar step). */
1765 if (progbar == NULL)
1766 progbar = delayed_create_progress_dlg(string1, string2,
1769 &progbar_start_time,
1772 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1773 when we update it, we have to run the GTK+ main loop to get it
1774 to repaint what's pending, and doing so may involve an "ioctl()"
1775 to see if there's any pending input from an X server, and doing
1776 that for every packet can be costly, especially on a big file. */
1777 if (progbar_count >= progbar_nextstep) {
1778 /* let's not divide by zero. I should never be started
1779 * with count == 0, so let's assert that
1781 g_assert(cf->count > 0);
1782 progbar_val = (gfloat) progbar_count / cf->count;
1784 if (progbar != NULL) {
1785 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
1786 "%4u of %u packets", progbar_count, cf->count);
1787 update_progress_dlg(progbar, progbar_val, progbar_status_str);
1790 progbar_nextstep += progbar_quantum;
1793 if (progbar_stop_flag) {
1794 /* Well, the user decided to abort the operation. Just stop,
1795 and arrange to return PSP_STOPPED to our caller, so they know
1796 it was stopped explicitly. */
1803 /* do we have to process this packet? */
1804 process_this = packet_range_process_packet(range, fdata);
1805 if (process_this == range_process_next) {
1806 /* this packet uninteresting, continue with next one */
1808 } else if (process_this == range_processing_finished) {
1809 /* all interesting packets processed, stop the loop */
1813 /* Get the packet */
1814 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1815 pd, fdata->cap_len, &err, &err_info)) {
1816 /* Attempt to get the packet failed. */
1817 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1818 cf_read_error_message(err, err_info), cf->filename);
1822 /* Process the packet */
1823 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
1824 /* Callback failed. We assume it reported the error appropriately. */
1830 /* We're done printing the packets; destroy the progress bar if
1832 if (progbar != NULL)
1833 destroy_progress_dlg(progbar);
1839 retap_packet(capture_file *cf _U_, frame_data *fdata,
1840 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
1843 column_info *cinfo = argsp;
1844 epan_dissect_t *edt;
1846 /* If we have tap listeners, allocate a protocol tree root node, so that
1847 we'll construct a protocol tree against which a filter expression can
1849 edt = epan_dissect_new(num_tap_filters != 0, FALSE);
1850 tap_queue_init(edt);
1851 epan_dissect_run(edt, pseudo_header, pd, fdata, cinfo);
1852 tap_push_tapped_queue(edt);
1853 epan_dissect_free(edt);
1859 cf_retap_packets(capture_file *cf, gboolean do_columns)
1861 packet_range_t range;
1863 /* Reset the tap listeners. */
1864 reset_tap_listeners();
1866 /* Iterate through the list of packets, dissecting all packets and
1867 re-running the taps. */
1868 packet_range_init(&range);
1869 packet_range_process_init(&range);
1870 switch (process_specified_packets(cf, &range, "Refiltering statistics on",
1871 "all packets", TRUE, retap_packet,
1872 do_columns ? &cf->cinfo : NULL)) {
1874 /* Completed successfully. */
1878 /* Well, the user decided to abort the refiltering.
1879 Return CF_READ_ABORTED so our caller knows they did that. */
1880 return CF_READ_ABORTED;
1883 /* Error while retapping. */
1884 return CF_READ_ERROR;
1887 g_assert_not_reached();
1892 print_args_t *print_args;
1893 gboolean print_header_line;
1894 char *header_line_buf;
1895 int header_line_buf_len;
1896 gboolean print_formfeed;
1897 gboolean print_separator;
1901 } print_callback_args_t;
1904 print_packet(capture_file *cf, frame_data *fdata,
1905 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
1908 print_callback_args_t *args = argsp;
1909 epan_dissect_t *edt;
1915 gboolean proto_tree_needed;
1916 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
1917 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
1919 /* Create the protocol tree, and make it visible, if we're printing
1920 the dissection or the hex data.
1921 XXX - do we need it if we're just printing the hex data? */
1923 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex;
1924 edt = epan_dissect_new(proto_tree_needed, proto_tree_needed);
1926 /* Fill in the column information if we're printing the summary
1928 if (args->print_args->print_summary) {
1929 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
1930 epan_dissect_fill_in_columns(edt);
1932 epan_dissect_run(edt, pseudo_header, pd, fdata, NULL);
1934 if (args->print_formfeed) {
1935 if (!new_page(args->print_args->stream))
1938 if (args->print_separator) {
1939 if (!print_line(args->print_args->stream, 0, ""))
1945 * We generate bookmarks, if the output format supports them.
1946 * The name is "__frameN__".
1948 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
1950 if (args->print_args->print_summary) {
1951 if (args->print_header_line) {
1952 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
1954 args->print_header_line = FALSE; /* we might not need to print any more */
1956 cp = &args->line_buf[0];
1958 for (i = 0; i < cf->cinfo.num_cols; i++) {
1959 /* Find the length of the string for this column. */
1960 column_len = strlen(cf->cinfo.col_data[i]);
1961 if (args->col_widths[i] > column_len)
1962 column_len = args->col_widths[i];
1964 /* Make sure there's room in the line buffer for the column; if not,
1965 double its length. */
1966 line_len += column_len + 1; /* "+1" for space */
1967 if (line_len > args->line_buf_len) {
1968 cp_off = cp - args->line_buf;
1969 args->line_buf_len = 2 * line_len;
1970 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
1971 cp = args->line_buf + cp_off;
1974 /* Right-justify the packet number column. */
1975 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1976 sprintf(cp, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
1978 sprintf(cp, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
1980 if (i != cf->cinfo.num_cols - 1)
1986 * Generate a bookmark, using the summary line as the title.
1988 if (!print_bookmark(args->print_args->stream, bookmark_name,
1992 if (!print_line(args->print_args->stream, 0, args->line_buf))
1996 * Generate a bookmark, using "Frame N" as the title, as we're not
1997 * printing the summary line.
1999 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2000 if (!print_bookmark(args->print_args->stream, bookmark_name,
2003 } /* if (print_summary) */
2005 if (args->print_args->print_dissections != print_dissections_none) {
2006 if (args->print_args->print_summary) {
2007 /* Separate the summary line from the tree with a blank line. */
2008 if (!print_line(args->print_args->stream, 0, ""))
2012 /* Print the information in that tree. */
2013 if (!proto_tree_print(args->print_args, edt, args->print_args->stream))
2016 /* Print a blank line if we print anything after this (aka more than one packet). */
2017 args->print_separator = TRUE;
2019 /* Print a header line if we print any more packet summaries */
2020 args->print_header_line = TRUE;
2023 if (args->print_args->print_hex) {
2024 /* Print the full packet data as hex. */
2025 if (!print_hex_data(args->print_args->stream, edt))
2028 /* Print a blank line if we print anything after this (aka more than one packet). */
2029 args->print_separator = TRUE;
2031 /* Print a header line if we print any more packet summaries */
2032 args->print_header_line = TRUE;
2033 } /* if (args->print_args->print_dissections != print_dissections_none) */
2035 epan_dissect_free(edt);
2037 /* do we want to have a formfeed between each packet from now on? */
2038 if(args->print_args->print_formfeed) {
2039 args->print_formfeed = TRUE;
2045 epan_dissect_free(edt);
2050 cf_print_packets(capture_file *cf, print_args_t *print_args)
2053 print_callback_args_t callback_args;
2061 callback_args.print_args = print_args;
2062 callback_args.print_header_line = TRUE;
2063 callback_args.header_line_buf = NULL;
2064 callback_args.header_line_buf_len = 256;
2065 callback_args.print_formfeed = FALSE;
2066 callback_args.print_separator = FALSE;
2067 callback_args.line_buf = NULL;
2068 callback_args.line_buf_len = 256;
2069 callback_args.col_widths = NULL;
2071 if (!print_preamble(print_args->stream, cf->filename)) {
2072 destroy_print_stream(print_args->stream);
2073 return CF_PRINT_WRITE_ERROR;
2076 if (print_args->print_summary) {
2077 /* We're printing packet summaries. Allocate the header line buffer
2078 and get the column widths. */
2079 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2081 /* Find the widths for each of the columns - maximum of the
2082 width of the title and the width of the data - and construct
2083 a buffer with a line containing the column titles. */
2084 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2085 cp = &callback_args.header_line_buf[0];
2087 for (i = 0; i < cf->cinfo.num_cols; i++) {
2088 /* Don't pad the last column. */
2089 if (i == cf->cinfo.num_cols - 1)
2090 callback_args.col_widths[i] = 0;
2092 callback_args.col_widths[i] = strlen(cf->cinfo.col_title[i]);
2093 data_width = get_column_char_width(get_column_format(i));
2094 if (data_width > callback_args.col_widths[i])
2095 callback_args.col_widths[i] = data_width;
2098 /* Find the length of the string for this column. */
2099 column_len = strlen(cf->cinfo.col_title[i]);
2100 if (callback_args.col_widths[i] > column_len)
2101 column_len = callback_args.col_widths[i];
2103 /* Make sure there's room in the line buffer for the column; if not,
2104 double its length. */
2105 line_len += column_len + 1; /* "+1" for space */
2106 if (line_len > callback_args.header_line_buf_len) {
2107 cp_off = cp - callback_args.header_line_buf;
2108 callback_args.header_line_buf_len = 2 * line_len;
2109 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2110 callback_args.header_line_buf_len + 1);
2111 cp = callback_args.header_line_buf + cp_off;
2114 /* Right-justify the packet number column. */
2115 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2116 sprintf(cp, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2118 sprintf(cp, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2120 if (i != cf->cinfo.num_cols - 1)
2125 /* Now start out the main line buffer with the same length as the
2126 header line buffer. */
2127 callback_args.line_buf_len = callback_args.header_line_buf_len;
2128 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2129 } /* if (print_summary) */
2131 /* Iterate through the list of packets, printing the packets we were
2133 ret = process_specified_packets(cf, &print_args->range, "Printing",
2134 "selected packets", TRUE, print_packet,
2137 if (callback_args.header_line_buf != NULL)
2138 g_free(callback_args.header_line_buf);
2139 if (callback_args.line_buf != NULL)
2140 g_free(callback_args.line_buf);
2141 if (callback_args.col_widths != NULL)
2142 g_free(callback_args.col_widths);
2147 /* Completed successfully. */
2151 /* Well, the user decided to abort the printing.
2153 XXX - note that what got generated before they did that
2154 will get printed if we're piping to a print program; we'd
2155 have to write to a file and then hand that to the print
2156 program to make it actually not print anything. */
2160 /* Error while printing.
2162 XXX - note that what got generated before they did that
2163 will get printed if we're piping to a print program; we'd
2164 have to write to a file and then hand that to the print
2165 program to make it actually not print anything. */
2166 destroy_print_stream(print_args->stream);
2167 return CF_PRINT_WRITE_ERROR;
2170 if (!print_finale(print_args->stream)) {
2171 destroy_print_stream(print_args->stream);
2172 return CF_PRINT_WRITE_ERROR;
2175 if (!destroy_print_stream(print_args->stream))
2176 return CF_PRINT_WRITE_ERROR;
2182 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2183 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2187 epan_dissect_t *edt;
2189 /* Create the protocol tree, but don't fill in the column information. */
2190 edt = epan_dissect_new(TRUE, TRUE);
2191 epan_dissect_run(edt, pseudo_header, pd, fdata, NULL);
2193 /* Write out the information in that tree. */
2194 proto_tree_write_pdml(edt, fh);
2196 epan_dissect_free(edt);
2202 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2207 fh = eth_fopen(print_args->file, "w");
2209 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2211 write_pdml_preamble(fh);
2214 return CF_PRINT_WRITE_ERROR;
2217 /* Iterate through the list of packets, printing the packets we were
2219 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2220 "selected packets", TRUE,
2221 write_pdml_packet, fh);
2226 /* Completed successfully. */
2230 /* Well, the user decided to abort the printing. */
2234 /* Error while printing. */
2236 return CF_PRINT_WRITE_ERROR;
2239 write_pdml_finale(fh);
2242 return CF_PRINT_WRITE_ERROR;
2245 /* XXX - check for an error */
2252 write_psml_packet(capture_file *cf, frame_data *fdata,
2253 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2257 epan_dissect_t *edt;
2259 /* Fill in the column information, but don't create the protocol tree. */
2260 edt = epan_dissect_new(FALSE, FALSE);
2261 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
2262 epan_dissect_fill_in_columns(edt);
2264 /* Write out the information in that tree. */
2265 proto_tree_write_psml(edt, fh);
2267 epan_dissect_free(edt);
2273 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2278 fh = eth_fopen(print_args->file, "w");
2280 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2282 write_psml_preamble(fh);
2285 return CF_PRINT_WRITE_ERROR;
2288 /* Iterate through the list of packets, printing the packets we were
2290 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2291 "selected packets", TRUE,
2292 write_psml_packet, fh);
2297 /* Completed successfully. */
2301 /* Well, the user decided to abort the printing. */
2305 /* Error while printing. */
2307 return CF_PRINT_WRITE_ERROR;
2310 write_psml_finale(fh);
2313 return CF_PRINT_WRITE_ERROR;
2316 /* XXX - check for an error */
2323 write_csv_packet(capture_file *cf, frame_data *fdata,
2324 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2328 epan_dissect_t *edt;
2330 /* Fill in the column information, but don't create the protocol tree. */
2331 edt = epan_dissect_new(FALSE, FALSE);
2332 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
2333 epan_dissect_fill_in_columns(edt);
2335 /* Write out the information in that tree. */
2336 proto_tree_write_csv(edt, fh);
2338 epan_dissect_free(edt);
2344 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2349 fh = eth_fopen(print_args->file, "w");
2351 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2353 write_csv_preamble(fh);
2356 return CF_PRINT_WRITE_ERROR;
2359 /* Iterate through the list of packets, printing the packets we were
2361 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2362 "selected packets", TRUE,
2363 write_csv_packet, fh);
2368 /* Completed successfully. */
2372 /* Well, the user decided to abort the printing. */
2376 /* Error while printing. */
2378 return CF_PRINT_WRITE_ERROR;
2381 write_csv_finale(fh);
2384 return CF_PRINT_WRITE_ERROR;
2387 /* XXX - check for an error */
2393 /* Scan through the packet list and change all columns that use the
2394 "command-line-specified" time stamp format to use the current
2395 value of that format. */
2397 cf_change_time_formats(capture_file *cf)
2400 progdlg_t *progbar = NULL;
2406 GTimeVal start_time;
2407 gchar status_str[100];
2408 int progbar_nextstep;
2409 int progbar_quantum;
2411 gboolean sorted_by_frame_column;
2414 /* adjust timestamp precision if auto is selected */
2415 cf_timestamp_auto_precision(cf);
2417 /* Are there any columns with time stamps in the "command-line-specified"
2420 XXX - we have to force the "column is writable" flag on, as it
2421 might be off from the last frame that was dissected. */
2422 col_set_writable(&cf->cinfo, TRUE);
2423 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
2424 /* No, there aren't any columns in that format, so we have no work
2428 first = cf->cinfo.col_first[COL_CLS_TIME];
2429 g_assert(first >= 0);
2430 last = cf->cinfo.col_last[COL_CLS_TIME];
2432 /* Freeze the packet list while we redo it, so we don't get any
2433 screen updates while it happens. */
2434 packet_list_freeze();
2436 /* Update the progress bar when it gets to this value. */
2437 progbar_nextstep = 0;
2438 /* When we reach the value that triggers a progress bar update,
2439 bump that value by this amount. */
2440 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2441 /* Count of packets at which we've looked. */
2443 /* Progress so far. */
2446 /* If the rows are currently sorted by the frame column then we know
2447 * the row number of each packet: it's the row number of the previously
2448 * displayed packet + 1.
2450 * Otherwise, if the display is sorted by a different column then we have
2451 * to use the O(N) packet_list_find_row_from_data() (thus making the job
2452 * of changing the time display format O(N**2)).
2454 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
2455 * the row number and walks that many elements down the clist to find
2456 * the appropriate element.)
2458 sorted_by_frame_column = FALSE;
2459 for (i = 0; i < cf->cinfo.num_cols; i++) {
2460 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2462 sorted_by_frame_column = (i == packet_list_get_sort_column());
2468 g_get_current_time(&start_time);
2470 /* Iterate through the list of packets, checking whether the packet
2471 is in a row of the summary list and, if so, whether there are
2472 any columns that show the time in the "command-line-specified"
2473 format and, if so, update that row. */
2474 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
2475 /* Create the progress bar if necessary.
2476 We check on every iteration of the loop, so that it takes no
2477 longer than the standard time to create it (otherwise, for a
2478 large file, we might take considerably longer than that standard
2479 time in order to get to the next progress bar step). */
2480 if (progbar == NULL)
2481 progbar = delayed_create_progress_dlg("Changing", "time display",
2482 TRUE, &stop_flag, &start_time, progbar_val);
2484 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2485 when we update it, we have to run the GTK+ main loop to get it
2486 to repaint what's pending, and doing so may involve an "ioctl()"
2487 to see if there's any pending input from an X server, and doing
2488 that for every packet can be costly, especially on a big file. */
2489 if (count >= progbar_nextstep) {
2490 /* let's not divide by zero. I should never be started
2491 * with count == 0, so let's assert that
2493 g_assert(cf->count > 0);
2495 progbar_val = (gfloat) count / cf->count;
2497 if (progbar != NULL) {
2498 g_snprintf(status_str, sizeof(status_str),
2499 "%4u of %u packets", count, cf->count);
2500 update_progress_dlg(progbar, progbar_val, status_str);
2503 progbar_nextstep += progbar_quantum;
2507 /* Well, the user decided to abort the redisplay. Just stop.
2509 XXX - this leaves the time field in the old format in
2510 frames we haven't yet processed. So it goes; should we
2511 simply not offer them the option of stopping? */
2517 /* Find what row this packet is in. */
2518 if (!sorted_by_frame_column) {
2519 /* This function is O(N), so we try to avoid using it... */
2520 row = packet_list_find_row_from_data(fdata);
2522 /* ...which we do by maintaining a count of packets that are
2523 being displayed (i.e., that have passed the display filter),
2524 and using the current value of that count as the row number
2525 (which is why we can only do it when the display is sorted
2526 by the frame number). */
2527 if (fdata->flags.passed_dfilter)
2534 /* This packet is in the summary list, on row "row". */
2536 for (i = first; i <= last; i++) {
2537 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
2538 /* This is one of the columns that shows the time in
2539 "command-line-specified" format; update it. */
2540 cf->cinfo.col_buf[i][0] = '\0';
2541 col_set_cls_time(fdata, &cf->cinfo, i);
2542 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
2548 /* We're done redisplaying the packets; destroy the progress bar if it
2550 if (progbar != NULL)
2551 destroy_progress_dlg(progbar);
2553 /* Set the column widths of those columns that show the time in
2554 "command-line-specified" format. */
2555 for (i = first; i <= last; i++) {
2556 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
2557 packet_list_set_cls_time_width(i);
2561 /* Unfreeze the packet list. */
2569 gboolean frame_matched;
2573 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
2577 mdata.string = string;
2578 mdata.string_len = strlen(string);
2579 return find_packet(cf, match_protocol_tree, &mdata);
2583 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2585 match_data *mdata = criterion;
2586 epan_dissect_t *edt;
2588 /* Construct the protocol tree, including the displayed text */
2589 edt = epan_dissect_new(TRUE, TRUE);
2590 /* We don't need the column information */
2591 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2593 /* Iterate through all the nodes, seeing if they have text that matches. */
2595 mdata->frame_matched = FALSE;
2596 proto_tree_children_foreach(edt->tree, match_subtree_text, mdata);
2597 epan_dissect_free(edt);
2598 return mdata->frame_matched;
2602 match_subtree_text(proto_node *node, gpointer data)
2604 match_data *mdata = (match_data*) data;
2605 const gchar *string = mdata->string;
2606 size_t string_len = mdata->string_len;
2607 capture_file *cf = mdata->cf;
2608 field_info *fi = PITEM_FINFO(node);
2609 gchar label_str[ITEM_LABEL_LENGTH];
2616 if (mdata->frame_matched) {
2617 /* We already had a match; don't bother doing any more work. */
2621 /* Don't match invisible entries. */
2622 if (PROTO_ITEM_IS_HIDDEN(node))
2625 /* was a free format label produced? */
2627 label_ptr = fi->rep->representation;
2629 /* no, make a generic label */
2630 label_ptr = label_str;
2631 proto_item_fill_label(fi, label_str);
2634 /* Does that label match? */
2635 label_len = strlen(label_ptr);
2636 for (i = 0; i < label_len; i++) {
2637 c_char = label_ptr[i];
2639 c_char = toupper(c_char);
2640 if (c_char == string[c_match]) {
2642 if (c_match == string_len) {
2643 /* No need to look further; we have a match */
2644 mdata->frame_matched = TRUE;
2651 /* Recurse into the subtree, if it exists */
2652 if (node->first_child != NULL)
2653 proto_tree_children_foreach(node, match_subtree_text, mdata);
2657 cf_find_packet_summary_line(capture_file *cf, const char *string)
2661 mdata.string = string;
2662 mdata.string_len = strlen(string);
2663 return find_packet(cf, match_summary_line, &mdata);
2667 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2669 match_data *mdata = criterion;
2670 const gchar *string = mdata->string;
2671 size_t string_len = mdata->string_len;
2672 epan_dissect_t *edt;
2673 const char *info_column;
2674 size_t info_column_len;
2675 gboolean frame_matched = FALSE;
2681 /* Don't bother constructing the protocol tree */
2682 edt = epan_dissect_new(FALSE, FALSE);
2683 /* Get the column information */
2684 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2686 /* Find the Info column */
2687 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2688 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2689 /* Found it. See if we match. */
2690 info_column = edt->pi.cinfo->col_data[colx];
2691 info_column_len = strlen(info_column);
2692 for (i = 0; i < info_column_len; i++) {
2693 c_char = info_column[i];
2695 c_char = toupper(c_char);
2696 if (c_char == string[c_match]) {
2698 if (c_match == string_len) {
2699 frame_matched = TRUE;
2708 epan_dissect_free(edt);
2709 return frame_matched;
2715 } cbs_t; /* "Counted byte string" */
2718 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
2723 info.data_len = string_size;
2725 /* String or hex search? */
2727 /* String search - what type of string? */
2728 switch (cf->scs_type) {
2730 case SCS_ASCII_AND_UNICODE:
2731 return find_packet(cf, match_ascii_and_unicode, &info);
2734 return find_packet(cf, match_ascii, &info);
2737 return find_packet(cf, match_unicode, &info);
2740 g_assert_not_reached();
2744 return find_packet(cf, match_binary, &info);
2748 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2750 cbs_t *info = criterion;
2751 const char *ascii_text = info->data;
2752 size_t textlen = info->data_len;
2753 gboolean frame_matched;
2759 frame_matched = FALSE;
2760 buf_len = fdata->pkt_len;
2761 for (i = 0; i < buf_len; i++) {
2764 c_char = toupper(c_char);
2766 if (c_char == ascii_text[c_match]) {
2768 if (c_match == textlen) {
2769 frame_matched = TRUE;
2770 cf->search_pos = i; /* Save the position of the last character
2771 for highlighting the field. */
2778 return frame_matched;
2782 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
2784 cbs_t *info = criterion;
2785 const char *ascii_text = info->data;
2786 size_t textlen = info->data_len;
2787 gboolean frame_matched;
2793 frame_matched = FALSE;
2794 buf_len = fdata->pkt_len;
2795 for (i = 0; i < buf_len; i++) {
2798 c_char = toupper(c_char);
2799 if (c_char == ascii_text[c_match]) {
2801 if (c_match == textlen) {
2802 frame_matched = TRUE;
2803 cf->search_pos = i; /* Save the position of the last character
2804 for highlighting the field. */
2810 return frame_matched;
2814 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2816 cbs_t *info = criterion;
2817 const char *ascii_text = info->data;
2818 size_t textlen = info->data_len;
2819 gboolean frame_matched;
2825 frame_matched = FALSE;
2826 buf_len = fdata->pkt_len;
2827 for (i = 0; i < buf_len; i++) {
2830 c_char = toupper(c_char);
2831 if (c_char == ascii_text[c_match]) {
2834 if (c_match == textlen) {
2835 frame_matched = TRUE;
2836 cf->search_pos = i; /* Save the position of the last character
2837 for highlighting the field. */
2843 return frame_matched;
2847 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
2849 cbs_t *info = criterion;
2850 const guint8 *binary_data = info->data;
2851 size_t datalen = info->data_len;
2852 gboolean frame_matched;
2857 frame_matched = FALSE;
2858 buf_len = fdata->pkt_len;
2859 for (i = 0; i < buf_len; i++) {
2860 if (cf->pd[i] == binary_data[c_match]) {
2862 if (c_match == datalen) {
2863 frame_matched = TRUE;
2864 cf->search_pos = i; /* Save the position of the last character
2865 for highlighting the field. */
2871 return frame_matched;
2875 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
2877 return find_packet(cf, match_dfilter, sfcode);
2881 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
2883 dfilter_t *sfcode = criterion;
2884 epan_dissect_t *edt;
2885 gboolean frame_matched;
2887 edt = epan_dissect_new(TRUE, FALSE);
2888 epan_dissect_prime_dfilter(edt, sfcode);
2889 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2890 frame_matched = dfilter_apply_edt(sfcode, edt);
2891 epan_dissect_free(edt);
2892 return frame_matched;
2896 find_packet(capture_file *cf,
2897 gboolean (*match_function)(capture_file *, frame_data *, void *),
2900 frame_data *start_fd;
2902 frame_data *new_fd = NULL;
2903 progdlg_t *progbar = NULL;
2910 GTimeVal start_time;
2911 gchar status_str[100];
2912 int progbar_nextstep;
2913 int progbar_quantum;
2916 start_fd = cf->current_frame;
2917 if (start_fd != NULL) {
2918 /* Iterate through the list of packets, starting at the packet we've
2919 picked, calling a routine to run the filter on the packet, see if
2920 it matches, and stop if so. */
2924 /* Update the progress bar when it gets to this value. */
2925 progbar_nextstep = 0;
2926 /* When we reach the value that triggers a progress bar update,
2927 bump that value by this amount. */
2928 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2929 /* Progress so far. */
2933 g_get_current_time(&start_time);
2936 title = cf->sfilter?cf->sfilter:"";
2938 /* Create the progress bar if necessary.
2939 We check on every iteration of the loop, so that it takes no
2940 longer than the standard time to create it (otherwise, for a
2941 large file, we might take considerably longer than that standard
2942 time in order to get to the next progress bar step). */
2943 if (progbar == NULL)
2944 progbar = delayed_create_progress_dlg("Searching", title,
2945 FALSE, &stop_flag, &start_time, progbar_val);
2947 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2948 when we update it, we have to run the GTK+ main loop to get it
2949 to repaint what's pending, and doing so may involve an "ioctl()"
2950 to see if there's any pending input from an X server, and doing
2951 that for every packet can be costly, especially on a big file. */
2952 if (count >= progbar_nextstep) {
2953 /* let's not divide by zero. I should never be started
2954 * with count == 0, so let's assert that
2956 g_assert(cf->count > 0);
2958 progbar_val = (gfloat) count / cf->count;
2960 if (progbar != NULL) {
2961 g_snprintf(status_str, sizeof(status_str),
2962 "%4u of %u packets", count, cf->count);
2963 update_progress_dlg(progbar, progbar_val, status_str);
2966 progbar_nextstep += progbar_quantum;
2970 /* Well, the user decided to abort the search. Go back to the
2971 frame where we started. */
2976 /* Go past the current frame. */
2977 if (cf->sbackward) {
2978 /* Go on to the previous frame. */
2979 fdata = fdata->prev;
2980 if (fdata == NULL) {
2982 * XXX - other apps have a bit more of a detailed message
2983 * for this, and instead of offering "OK" and "Cancel",
2984 * they offer things such as "Continue" and "Cancel";
2985 * we need an API for popping up alert boxes with
2986 * {Verb} and "Cancel".
2989 if (prefs.gui_find_wrap)
2991 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2992 "%sBeginning of capture exceeded!%s\n\n"
2993 "Search is continued from the end of the capture.",
2994 simple_dialog_primary_start(), simple_dialog_primary_end());
2995 fdata = cf->plist_end; /* wrap around */
2999 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3000 "%sBeginning of capture exceeded!%s\n\n"
3001 "Try searching forwards.",
3002 simple_dialog_primary_start(), simple_dialog_primary_end());
3003 fdata = start_fd; /* stay on previous packet */
3007 /* Go on to the next frame. */
3008 fdata = fdata->next;
3009 if (fdata == NULL) {
3010 if (prefs.gui_find_wrap)
3012 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3013 "%sEnd of capture exceeded!%s\n\n"
3014 "Search is continued from the start of the capture.",
3015 simple_dialog_primary_start(), simple_dialog_primary_end());
3016 fdata = cf->plist; /* wrap around */
3020 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3021 "%sEnd of capture exceeded!%s\n\n"
3022 "Try searching backwards.",
3023 simple_dialog_primary_start(), simple_dialog_primary_end());
3024 fdata = start_fd; /* stay on previous packet */
3031 /* Is this packet in the display? */
3032 if (fdata->flags.passed_dfilter) {
3033 /* Yes. Load its data. */
3034 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3035 cf->pd, fdata->cap_len, &err, &err_info)) {
3036 /* Read error. Report the error, and go back to the frame
3037 where we started. */
3038 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3039 cf_read_error_message(err, err_info), cf->filename);
3044 /* Does it match the search criterion? */
3045 if ((*match_function)(cf, fdata, criterion)) {
3047 break; /* found it! */
3051 if (fdata == start_fd) {
3052 /* We're back to the frame we were on originally, and that frame
3053 doesn't match the search filter. The search failed. */
3058 /* We're done scanning the packets; destroy the progress bar if it
3060 if (progbar != NULL)
3061 destroy_progress_dlg(progbar);
3064 if (new_fd != NULL) {
3065 /* We found a frame. Find what row it's in. */
3066 row = packet_list_find_row_from_data(new_fd);
3067 g_assert(row != -1);
3069 /* Select that row, make it the focus row, and make it visible. */
3070 packet_list_set_selected_row(row);
3071 return TRUE; /* success */
3073 return FALSE; /* failure */
3077 cf_goto_frame(capture_file *cf, guint fnumber)
3082 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3085 if (fdata == NULL) {
3086 /* we didn't find a packet with that packet number */
3087 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3088 "There is no packet with the packet number %u.", fnumber);
3089 return FALSE; /* we failed to go to that packet */
3091 if (!fdata->flags.passed_dfilter) {
3092 /* that packet currently isn't displayed */
3093 /* XXX - add it to the set of displayed packets? */
3094 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3095 "The packet number %u isn't currently being displayed.", fnumber);
3096 return FALSE; /* we failed to go to that packet */
3099 /* We found that packet, and it's currently being displayed.
3100 Find what row it's in. */
3101 row = packet_list_find_row_from_data(fdata);
3102 g_assert(row != -1);
3104 /* Select that row, make it the focus row, and make it visible. */
3105 packet_list_set_selected_row(row);
3106 return TRUE; /* we got to that packet */
3110 cf_goto_top_frame(capture_file *cf)
3114 frame_data *lowest_fdata = NULL;
3116 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3117 if (fdata->flags.passed_dfilter) {
3118 lowest_fdata = fdata;
3123 if (lowest_fdata == NULL) {
3127 /* We found that packet, and it's currently being displayed.
3128 Find what row it's in. */
3129 row = packet_list_find_row_from_data(lowest_fdata);
3130 g_assert(row != -1);
3132 /* Select that row, make it the focus row, and make it visible. */
3133 packet_list_set_selected_row(row);
3134 return TRUE; /* we got to that packet */
3138 cf_goto_bottom_frame(capture_file *cf)
3142 frame_data *highest_fdata = NULL;
3144 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3145 if (fdata->flags.passed_dfilter) {
3146 highest_fdata = fdata;
3150 if (highest_fdata == NULL) {
3154 /* We found that packet, and it's currently being displayed.
3155 Find what row it's in. */
3156 row = packet_list_find_row_from_data(highest_fdata);
3157 g_assert(row != -1);
3159 /* Select that row, make it the focus row, and make it visible. */
3160 packet_list_set_selected_row(row);
3161 return TRUE; /* we got to that packet */
3165 * Go to frame specified by currently selected protocol tree item.
3168 cf_goto_framenum(capture_file *cf)
3170 header_field_info *hfinfo;
3173 if (cf->finfo_selected) {
3174 hfinfo = cf->finfo_selected->hfinfo;
3176 if (hfinfo->type == FT_FRAMENUM) {
3177 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3179 return cf_goto_frame(cf, framenum);
3186 /* Select the packet on a given row. */
3188 cf_select_packet(capture_file *cf, int row)
3194 /* Get the frame data struct pointer for this frame */
3195 fdata = (frame_data *)packet_list_get_row_data(row);
3197 if (fdata == NULL) {
3198 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3199 the first entry is added to it by "real_insert_row()", that row
3200 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3201 our version and the vanilla GTK+ version).
3203 This means that a "select-row" signal is emitted; this causes
3204 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3207 "cf_select_packet()" fetches, above, the data associated with the
3208 row that was selected; however, as "gtk_clist_append()", which
3209 called "real_insert_row()", hasn't yet returned, we haven't yet
3210 associated any data with that row, so we get back a null pointer.
3212 We can't assume that there's only one frame in the frame list,
3213 either, as we may be filtering the display.
3215 We therefore assume that, if "row" is 0, i.e. the first row
3216 is being selected, and "cf->first_displayed" equals
3217 "cf->last_displayed", i.e. there's only one frame being
3218 displayed, that frame is the frame we want.
3220 This means we have to set "cf->first_displayed" and
3221 "cf->last_displayed" before adding the row to the
3222 GtkCList; see the comment in "add_packet_to_packet_list()". */
3224 if (row == 0 && cf->first_displayed == cf->last_displayed)
3225 fdata = cf->first_displayed;
3228 /* If fdata _still_ isn't set simply give up. */
3229 if (fdata == NULL) {
3233 /* Get the data in that frame. */
3234 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
3235 cf->pd, fdata->cap_len, &err, &err_info)) {
3236 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3237 cf_read_error_message(err, err_info), cf->filename);
3241 /* Record that this frame is the current frame. */
3242 cf->current_frame = fdata;
3244 /* Create the logical protocol tree. */
3245 if (cf->edt != NULL) {
3246 epan_dissect_free(cf->edt);
3249 /* We don't need the columns here. */
3250 cf->edt = epan_dissect_new(TRUE, TRUE);
3252 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3255 cf_callback_invoke(cf_cb_packet_selected, cf);
3258 /* Unselect the selected packet, if any. */
3260 cf_unselect_packet(capture_file *cf)
3262 /* Destroy the epan_dissect_t for the unselected packet. */
3263 if (cf->edt != NULL) {
3264 epan_dissect_free(cf->edt);
3268 /* No packet is selected. */
3269 cf->current_frame = NULL;
3271 cf_callback_invoke(cf_cb_packet_unselected, cf);
3273 /* No protocol tree means no selected field. */
3274 cf_unselect_field(cf);
3277 /* Unset the selected protocol tree field, if any. */
3279 cf_unselect_field(capture_file *cf)
3281 cf->finfo_selected = NULL;
3283 cf_callback_invoke(cf_cb_field_unselected, cf);
3287 * Mark a particular frame.
3290 cf_mark_frame(capture_file *cf, frame_data *frame)
3292 if (! frame->flags.marked) {
3293 frame->flags.marked = TRUE;
3294 if (cf->count > cf->marked_count)
3300 * Unmark a particular frame.
3303 cf_unmark_frame(capture_file *cf, frame_data *frame)
3305 if (frame->flags.marked) {
3306 frame->flags.marked = FALSE;
3307 if (cf->marked_count > 0)
3315 } save_callback_args_t;
3318 * Save a capture to a file, in a particular format, saving either
3319 * all packets, all currently-displayed packets, or all marked packets.
3321 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3322 * up a message box for the failure.
3325 save_packet(capture_file *cf _U_, frame_data *fdata,
3326 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3329 save_callback_args_t *args = argsp;
3330 struct wtap_pkthdr hdr;
3333 /* init the wtap header for saving */
3334 hdr.ts.secs = fdata->abs_ts.secs;
3335 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3336 hdr.caplen = fdata->cap_len;
3337 hdr.len = fdata->pkt_len;
3338 hdr.pkt_encap = fdata->lnk_t;
3340 /* and save the packet */
3341 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3342 cf_write_failure_alert_box(args->fname, err);
3349 * Can this capture file be saved in any format except by copying the raw data?
3352 cf_can_save_as(capture_file *cf)
3356 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3357 /* To save a file with Wiretap, Wiretap has to handle that format,
3358 and its code to handle that format must be able to write a file
3359 with this file's encapsulation type. */
3360 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3361 /* OK, we can write it out in this type. */
3366 /* No, we couldn't save it in any format. */
3371 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3373 gchar *from_filename;
3377 save_callback_args_t callback_args;
3379 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
3381 /* don't write over an existing file. */
3382 /* this should've been already checked by our caller, just to be sure... */
3383 if (file_exists(fname)) {
3384 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3385 "%sCapture file: \"%s\" already exists!%s\n\n"
3386 "Please choose a different filename.",
3387 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3391 packet_range_process_init(range);
3394 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3395 /* We're not filtering packets, and we're saving it in the format
3396 it's already in, so we can just move or copy the raw data. */
3398 if (cf->is_tempfile) {
3399 /* The file being saved is a temporary file from a live
3400 capture, so it doesn't need to stay around under that name;
3401 first, try renaming the capture buffer file to the new name. */
3403 if (eth_rename(cf->filename, fname) == 0) {
3404 /* That succeeded - there's no need to copy the source file. */
3405 from_filename = NULL;
3408 if (errno == EXDEV) {
3409 /* They're on different file systems, so we have to copy the
3412 from_filename = cf->filename;
3414 /* The rename failed, but not because they're on different
3415 file systems - put up an error message. (Or should we
3416 just punt and try to copy? The only reason why I'd
3417 expect the rename to fail and the copy to succeed would
3418 be if we didn't have permission to remove the file from
3419 the temporary directory, and that might be fixable - but
3420 is it worth requiring the user to go off and fix it?) */
3421 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3422 file_rename_error_message(errno), fname);
3428 from_filename = cf->filename;
3431 /* It's a permanent file, so we should copy it, and not remove the
3434 from_filename = cf->filename;
3438 /* Copy the file, if we haven't moved it. */
3439 if (!copy_binary_file(from_filename, fname))
3443 /* Either we're filtering packets, or we're saving in a different
3444 format; we can't do that by copying or moving the capture file,
3445 we have to do it by writing the packets out in Wiretap. */
3446 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3449 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3453 /* XXX - we let the user save a subset of the packets.
3455 If we do that, should we make that file the current file? If so,
3456 it means we can no longer get at the other packets. What does
3459 /* Iterate through the list of packets, processing the packets we were
3462 XXX - we've already called "packet_range_process_init(range)", but
3463 "process_specified_packets()" will do it again. Fortunately,
3464 that's harmless in this case, as we haven't done anything to
3465 "range" since we initialized it. */
3466 callback_args.pdh = pdh;
3467 callback_args.fname = fname;
3468 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3469 TRUE, save_packet, &callback_args)) {
3472 /* Completed successfully. */
3476 /* The user decided to abort the saving.
3477 XXX - remove the output file? */
3481 /* Error while saving. */
3482 wtap_dump_close(pdh, &err);
3486 if (!wtap_dump_close(pdh, &err)) {
3487 cf_close_failure_alert_box(fname, err);
3492 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
3494 if (packet_range_process_all(range)) {
3495 /* We saved the entire capture, not just some packets from it.
3496 Open and read the file we saved it to.
3498 XXX - this is somewhat of a waste; we already have the
3499 packets, all this gets us is updated file type information
3500 (which we could just stuff into "cf"), and having the new
3501 file be the one we have opened and from which we're reading
3502 the data, and it means we have to spend time opening and
3503 reading the file, which could be a significant amount of
3504 time if the file is large. */
3505 cf->user_saved = TRUE;
3507 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3508 /* XXX - report errors if this fails?
3509 What should we return if it fails or is aborted? */
3510 switch (cf_read(cf)) {
3514 /* Just because we got an error, that doesn't mean we were unable
3515 to read any of the file; we handle what we could get from the
3519 case CF_READ_ABORTED:
3520 /* The user bailed out of re-reading the capture file; the
3521 capture file has been closed - just return (without
3522 changing any menu settings; "cf_close()" set them
3523 correctly for the "no capture file open" state). */
3526 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
3532 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
3537 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3538 gboolean for_writing, int file_type)
3541 /* Wiretap error. */
3544 case WTAP_ERR_NOT_REGULAR_FILE:
3545 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3546 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3550 case WTAP_ERR_RANDOM_OPEN_PIPE:
3551 /* Seen only when opening a capture file for reading. */
3552 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3553 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3557 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3558 /* Seen only when opening a capture file for reading. */
3559 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3560 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3564 case WTAP_ERR_UNSUPPORTED:
3565 /* Seen only when opening a capture file for reading. */
3566 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3567 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3569 filename, err_info);
3573 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3574 /* Seen only when opening a capture file for writing. */
3575 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3576 "The file \"%s\" is a pipe, and %s capture files can't be "
3577 "written to a pipe.",
3578 filename, wtap_file_type_string(file_type));
3581 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3582 /* Seen only when opening a capture file for writing. */
3583 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3584 "Wireshark doesn't support writing capture files in that format.");
3587 case WTAP_ERR_UNSUPPORTED_ENCAP:
3589 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3590 "Wireshark can't save this capture in that format.");
3592 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3593 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3595 filename, err_info);
3600 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3602 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3603 "Wireshark can't save this capture in that format.");
3605 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3606 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3611 case WTAP_ERR_BAD_RECORD:
3612 /* Seen only when opening a capture file for reading. */
3613 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3614 "The file \"%s\" appears to be damaged or corrupt.\n"
3616 filename, err_info);
3620 case WTAP_ERR_CANT_OPEN:
3622 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3623 "The file \"%s\" could not be created for some unknown reason.",
3626 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3627 "The file \"%s\" could not be opened for some unknown reason.",
3632 case WTAP_ERR_SHORT_READ:
3633 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3634 "The file \"%s\" appears to have been cut short"
3635 " in the middle of a packet or other data.",
3639 case WTAP_ERR_SHORT_WRITE:
3640 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3641 "A full header couldn't be written to the file \"%s\".",
3645 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3646 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3647 "Gzip compression not supported by this file type.");
3651 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3652 "The file \"%s\" could not be %s: %s.",
3654 for_writing ? "created" : "opened",
3655 wtap_strerror(err));
3660 open_failure_alert_box(filename, err, for_writing);
3665 file_rename_error_message(int err)
3668 static char errmsg_errno[1024+1];
3673 errmsg = "The path to the file \"%s\" doesn't exist.";
3677 errmsg = "You don't have permission to move the capture file to \"%s\".";
3681 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3682 "The file \"%%s\" could not be moved: %s.",
3683 wtap_strerror(err));
3684 errmsg = errmsg_errno;
3691 cf_read_error_message(int err, const gchar *err_info)
3693 static char errmsg_errno[1024+1];
3697 case WTAP_ERR_UNSUPPORTED_ENCAP:
3698 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3699 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
3703 case WTAP_ERR_BAD_RECORD:
3704 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3705 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
3706 wtap_strerror(err), err_info);
3710 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3711 "An error occurred while reading from the file \"%%s\": %s.",
3712 wtap_strerror(err));
3715 return errmsg_errno;
3719 cf_write_failure_alert_box(const char *filename, int err)
3722 /* Wiretap error. */
3723 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3724 "An error occurred while writing to the file \"%s\": %s.",
3725 filename, wtap_strerror(err));
3728 write_failure_alert_box(filename, err);
3732 /* Check for write errors - if the file is being written to an NFS server,
3733 a write error may not show up until the file is closed, as NFS clients
3734 might not send writes to the server until the "write()" call finishes,
3735 so that the write may fail on the server but the "write()" may succeed. */
3737 cf_close_failure_alert_box(const char *filename, int err)
3740 /* Wiretap error. */
3743 case WTAP_ERR_CANT_CLOSE:
3744 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3745 "The file \"%s\" couldn't be closed for some unknown reason.",
3749 case WTAP_ERR_SHORT_WRITE:
3750 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3751 "Not all the packets could be written to the file \"%s\".",
3756 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3757 "An error occurred while closing the file \"%s\": %s.",
3758 filename, wtap_strerror(err));
3763 We assume that a close error from the OS is really a write error. */
3764 write_failure_alert_box(filename, err);
3768 /* Reload the current capture file. */
3770 cf_reload(capture_file *cf) {
3772 gboolean is_tempfile;
3775 /* If the file could be opened, "cf_open()" calls "cf_close()"
3776 to get rid of state for the old capture file before filling in state
3777 for the new capture file. "cf_close()" will remove the file if
3778 it's a temporary file; we don't want that to happen (for one thing,
3779 it'd prevent subsequent reopens from working). Remember whether it's
3780 a temporary file, mark it as not being a temporary file, and then
3781 reopen it as the type of file it was.
3783 Also, "cf_close()" will free "cf->filename", so we must make
3784 a copy of it first. */
3785 filename = g_strdup(cf->filename);
3786 is_tempfile = cf->is_tempfile;
3787 cf->is_tempfile = FALSE;
3788 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
3789 switch (cf_read(cf)) {
3793 /* Just because we got an error, that doesn't mean we were unable
3794 to read any of the file; we handle what we could get from the
3798 case CF_READ_ABORTED:
3799 /* The user bailed out of re-reading the capture file; the
3800 capture file has been closed - just free the capture file name
3801 string and return (without changing the last containing
3807 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
3808 Instead, the file was left open, so we should restore "cf->is_tempfile"
3811 XXX - change the menu? Presumably "cf_open()" will do that;
3812 make sure it does! */
3813 cf->is_tempfile = is_tempfile;
3815 /* "cf_open()" made a copy of the file name we handed it, so
3816 we should free up our copy. */
3820 /* Copies a file in binary mode, for those operating systems that care about
3822 * Returns TRUE on success, FALSE on failure. If a failure, it also
3823 * displays a simple dialog window with the error message.
3826 copy_binary_file(const char *from_filename, const char *to_filename)
3828 int from_fd, to_fd, nread, nwritten, err;
3831 /* Copy the raw bytes of the file. */
3832 from_fd = eth_open(from_filename, O_RDONLY | O_BINARY, 0000 /* no creation so don't matter */);
3834 open_failure_alert_box(from_filename, errno, FALSE);
3838 /* Use open() instead of creat() so that we can pass the O_BINARY
3839 flag, which is relevant on Win32; it appears that "creat()"
3840 may open the file in text mode, not binary mode, but we want
3841 to copy the raw bytes of the file, so we need the output file
3842 to be open in binary mode. */
3843 to_fd = eth_open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
3845 open_failure_alert_box(to_filename, errno, TRUE);
3850 while ((nread = eth_read(from_fd, pd, sizeof pd)) > 0) {
3851 nwritten = eth_write(to_fd, pd, nread);
3852 if (nwritten < nread) {
3856 err = WTAP_ERR_SHORT_WRITE;
3857 write_failure_alert_box(to_filename, err);
3865 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3866 "An error occurred while reading from the file \"%s\": %s.",
3867 from_filename, strerror(err));
3873 if (eth_close(to_fd) < 0) {
3874 write_failure_alert_box(to_filename, errno);