6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
62 #include <epan/prefs.h>
63 #include <epan/dfilter/dfilter.h>
64 #include <epan/epan_dissect.h>
66 #include <epan/dissectors/packet-data.h>
67 #include <epan/dissectors/packet-ber.h>
68 #include <epan/timestamp.h>
69 #include <epan/dfilter/dfilter-macro.h>
70 #include <wsutil/file_util.h>
71 #include <epan/strutil.h>
72 #include <epan/addr_resolv.h>
74 #include "ui/alert_box.h"
75 #include "ui/simple_dialog.h"
76 #include "ui/main_statusbar.h"
77 #include "ui/progress_dlg.h"
78 #include "ui/ui_util.h"
81 gboolean auto_scroll_live;
84 static guint32 cum_bytes;
85 static nstime_t first_ts;
86 static nstime_t prev_dis_ts;
87 static nstime_t prev_cap_ts;
89 static gulong computed_elapsed;
91 static void cf_reset_state(capture_file *cf);
93 static int read_packet(capture_file *cf, dfilter_t *dfcode,
94 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
96 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
97 gboolean refilter, gboolean redissect);
104 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
106 static void match_subtree_text(proto_node *node, gpointer data);
107 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
111 static match_result match_ascii(capture_file *cf, frame_data *fdata,
113 static match_result match_unicode(capture_file *cf, frame_data *fdata,
115 static match_result match_binary(capture_file *cf, frame_data *fdata,
117 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
119 static match_result match_marked(capture_file *cf, frame_data *fdata,
121 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
123 static gboolean find_packet(capture_file *cf,
124 match_result (*match_function)(capture_file *, frame_data *, void *),
125 void *criterion, search_direction dir);
127 static void cf_open_failure_alert_box(const char *filename, int err,
128 gchar *err_info, gboolean for_writing,
130 static const char *file_rename_error_message(int err);
131 static void cf_close_failure_alert_box(const char *filename, int err);
132 static void ref_time_packets(capture_file *cf);
133 /* Update the progress bar this many times when reading a file. */
134 #define N_PROGBAR_UPDATES 100
135 /* We read around 200k/100ms don't update the progress bar more often than that */
136 #define MIN_QUANTUM 200000
137 #define MIN_NUMBER_OF_PACKET 1500
140 * We could probably use g_signal_...() instead of the callbacks below but that
141 * would require linking our CLI programs to libgobject and creating an object
142 * instance for the signals.
145 cf_callback_t cb_fct;
147 } cf_callback_data_t;
149 static GList *cf_callbacks = NULL;
152 cf_callback_invoke(int event, gpointer data)
154 cf_callback_data_t *cb;
155 GList *cb_item = cf_callbacks;
157 /* there should be at least one interested */
158 g_assert(cb_item != NULL);
160 while(cb_item != NULL) {
162 cb->cb_fct(event, data, cb->user_data);
163 cb_item = g_list_next(cb_item);
169 cf_callback_add(cf_callback_t func, gpointer user_data)
171 cf_callback_data_t *cb;
173 cb = g_malloc(sizeof(cf_callback_data_t));
175 cb->user_data = user_data;
177 cf_callbacks = g_list_append(cf_callbacks, cb);
181 cf_callback_remove(cf_callback_t func)
183 cf_callback_data_t *cb;
184 GList *cb_item = cf_callbacks;
186 while(cb_item != NULL) {
188 if(cb->cb_fct == func) {
189 cf_callbacks = g_list_remove(cf_callbacks, cb);
193 cb_item = g_list_next(cb_item);
196 g_assert_not_reached();
200 cf_timestamp_auto_precision(capture_file *cf)
203 int prec = timestamp_get_precision();
206 /* don't try to get the file's precision if none is opened */
207 if(cf->state == FILE_CLOSED) {
211 /* if we are in auto mode, set precision of current file */
212 if(prec == TS_PREC_AUTO ||
213 prec == TS_PREC_AUTO_SEC ||
214 prec == TS_PREC_AUTO_DSEC ||
215 prec == TS_PREC_AUTO_CSEC ||
216 prec == TS_PREC_AUTO_MSEC ||
217 prec == TS_PREC_AUTO_USEC ||
218 prec == TS_PREC_AUTO_NSEC)
220 switch(wtap_file_tsprecision(cf->wth)) {
221 case(WTAP_FILE_TSPREC_SEC):
222 timestamp_set_precision(TS_PREC_AUTO_SEC);
224 case(WTAP_FILE_TSPREC_DSEC):
225 timestamp_set_precision(TS_PREC_AUTO_DSEC);
227 case(WTAP_FILE_TSPREC_CSEC):
228 timestamp_set_precision(TS_PREC_AUTO_CSEC);
230 case(WTAP_FILE_TSPREC_MSEC):
231 timestamp_set_precision(TS_PREC_AUTO_MSEC);
233 case(WTAP_FILE_TSPREC_USEC):
234 timestamp_set_precision(TS_PREC_AUTO_USEC);
236 case(WTAP_FILE_TSPREC_NSEC):
237 timestamp_set_precision(TS_PREC_AUTO_NSEC);
240 g_assert_not_reached();
243 /* Set the column widths of those columns that show the time in
244 "command-line-specified" format. */
245 for (i = 0; i < cf->cinfo.num_cols; i++) {
246 if (col_has_time_fmt(&cf->cinfo, i)) {
247 new_packet_list_resize_column(i);
253 cf_get_computed_elapsed(void)
255 return computed_elapsed;
258 static void reset_elapsed(void)
260 computed_elapsed = 0;
263 static void compute_elapsed(GTimeVal *start_time)
268 g_get_current_time(&time_now);
270 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
271 time_now.tv_usec - start_time->tv_usec;
273 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
277 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
282 wth = wtap_open_offline(fname, err, &err_info, TRUE);
286 /* The open succeeded. Close whatever capture file we had open,
287 and fill in the information for this file. */
290 /* Cleanup all data structures used for dissection. */
291 cleanup_dissection();
292 /* Initialize all data structures used for dissection. */
295 /* We're about to start reading the file. */
296 cf->state = FILE_READ_IN_PROGRESS;
301 /* Set the file name because we need it to set the follow stream filter.
302 XXX - is that still true? We need it for other reasons, though,
304 cf->filename = g_strdup(fname);
306 /* Indicate whether it's a permanent or temporary file. */
307 cf->is_tempfile = is_tempfile;
309 /* If it's a temporary capture buffer file, mark it as not saved. */
310 cf->user_saved = !is_tempfile;
314 cf->cd_t = wtap_file_type(cf->wth);
316 cf->displayed_count = 0;
317 cf->marked_count = 0;
318 cf->ignored_count = 0;
319 cf->ref_time_count = 0;
320 cf->drops_known = FALSE;
322 cf->snap = wtap_snapshot_length(cf->wth);
324 /* Snapshot length not known. */
325 cf->has_snap = FALSE;
326 cf->snap = WTAP_MAX_PACKET_SIZE;
330 /* Allocate a frame_data_sequence for the frames in this file */
331 cf->frames = new_frame_data_sequence();
333 nstime_set_zero(&cf->elapsed_time);
334 nstime_set_unset(&first_ts);
335 nstime_set_unset(&prev_dis_ts);
336 nstime_set_unset(&prev_cap_ts);
339 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
340 cf_timestamp_auto_precision(cf);
342 new_packet_list_queue_draw();
343 fileset_file_opened(fname);
345 if(cf->cd_t == WTAP_FILE_BER) {
346 /* tell the BER dissector the file name */
347 ber_set_filename(cf->filename);
350 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
351 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
356 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
362 * Reset the state for the currently closed file, but don't do the
363 * UI callbacks; this is for use in "cf_open()", where we don't
364 * want the UI to go from "file open" to "file closed" back to
365 * "file open", we want it to go from "old file open" to "new file
366 * open and being read".
369 cf_reset_state(capture_file *cf)
371 /* Die if we're in the middle of reading a file. */
372 g_assert(cf->state != FILE_READ_IN_PROGRESS);
378 /* We have no file open... */
379 if (cf->filename != NULL) {
380 /* If it's a temporary file, remove it. */
382 ws_unlink(cf->filename);
383 g_free(cf->filename);
386 /* ...which means we have nothing to save. */
387 cf->user_saved = FALSE;
389 dfilter_free(cf->rfcode);
391 if (cf->frames != NULL) {
392 free_frame_data_sequence(cf->frames);
395 #ifdef WANT_PACKET_EDITOR
396 if (cf->edited_frames) {
397 g_tree_destroy(cf->edited_frames);
398 cf->edited_frames = NULL;
401 cf_unselect_packet(cf); /* nothing to select */
402 cf->first_displayed = 0;
403 cf->last_displayed = 0;
405 /* No frames, no frame selected, no field in that frame selected. */
407 cf->current_frame = 0;
409 cf->finfo_selected = NULL;
411 /* Clear the packet list. */
412 new_packet_list_freeze();
413 new_packet_list_clear();
414 new_packet_list_thaw();
417 nstime_set_zero(&cf->elapsed_time);
419 reset_tap_listeners();
421 /* We have no file open. */
422 cf->state = FILE_CLOSED;
424 fileset_file_closed();
427 /* Reset everything to a pristine state */
429 cf_close(capture_file *cf)
431 /* do GUI things even if file is already closed,
432 * e.g. to cleanup things if a capture couldn't be started */
433 cf_callback_invoke(cf_cb_file_closing, cf);
435 /* close things, if not already closed before */
436 if(cf->state != FILE_CLOSED) {
437 color_filters_cleanup();
439 cleanup_dissection();
442 cf_callback_invoke(cf_cb_file_closed, cf);
445 /* an out of memory exception occured, wait for a user button press to exit */
446 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
452 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
456 progbar_val = (gfloat) file_pos / (gfloat) size;
457 if (progbar_val > 1.0) {
459 /* The file probably grew while we were reading it.
460 * Update file size, and try again.
462 size = wtap_file_size(cf->wth, NULL);
465 progbar_val = (gfloat) file_pos / (gfloat) size;
467 /* If it's still > 1, either "wtap_file_size()" failed (in which
468 * case there's not much we can do about it), or the file
469 * *shrank* (in which case there's not much we can do about
470 * it); just clip the progress value at 1.0.
472 if (progbar_val > 1.0f)
476 g_snprintf(status_str, status_size,
477 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
478 file_pos / 1024, size / 1024);
484 cf_read(capture_file *cf, gboolean from_save)
488 const gchar *name_ptr;
490 char errmsg_errno[1024+1];
493 progdlg_t *volatile progbar = NULL;
495 volatile gint64 size;
496 volatile float progbar_val;
498 gchar status_str[100];
499 volatile gint64 progbar_nextstep;
500 volatile gint64 progbar_quantum;
502 gboolean filtering_tap_listeners;
504 volatile int count = 0;
506 volatile int displayed_once = 0;
510 /* Compile the current display filter.
511 * We assume this will not fail since cf->dfilter is only set in
512 * cf_filter IFF the filter was valid.
514 compiled = dfilter_compile(cf->dfilter, &dfcode);
515 g_assert(!cf->dfilter || (compiled && dfcode));
517 /* Do we have any tap listeners with filters? */
518 filtering_tap_listeners = have_filtering_tap_listeners();
520 /* Get the union of the flags for all tap listeners. */
521 tap_flags = union_of_tap_listener_flags();
523 reset_tap_listeners();
525 name_ptr = get_basename(cf->filename);
527 if (from_save == FALSE)
528 cf_callback_invoke(cf_cb_file_read_started, cf);
530 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
532 /* Find the size of the file. */
533 size = wtap_file_size(cf->wth, NULL);
535 /* Update the progress bar when it gets to this value. */
536 progbar_nextstep = 0;
537 /* When we reach the value that triggers a progress bar update,
538 bump that value by this amount. */
540 progbar_quantum = size/N_PROGBAR_UPDATES;
541 if (progbar_quantum < MIN_QUANTUM)
542 progbar_quantum = MIN_QUANTUM;
545 /* Progress so far. */
548 /* The packet list window will be empty untill the file is completly loaded */
549 new_packet_list_freeze();
552 g_get_current_time(&start_time);
554 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
557 file_pos = wtap_read_so_far(cf->wth);
559 /* Create the progress bar if necessary.
560 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
562 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
563 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
564 if (from_save == FALSE)
565 progbar = delayed_create_progress_dlg("Loading", name_ptr,
566 TRUE, &stop_flag, &start_time, progbar_val);
568 progbar = delayed_create_progress_dlg("Saving", name_ptr,
569 TRUE, &stop_flag, &start_time, progbar_val);
572 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
573 when we update it, we have to run the GTK+ main loop to get it
574 to repaint what's pending, and doing so may involve an "ioctl()"
575 to see if there's any pending input from an X server, and doing
576 that for every packet can be costly, especially on a big file. */
577 if (file_pos >= progbar_nextstep) {
578 if (progbar != NULL) {
579 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
580 /* update the packet bar content on the first run or frequently on very large files */
582 if (progbar_quantum > 500000 || displayed_once == 0) {
583 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
585 packets_bar_update();
588 #endif /* HAVE_LIBPCAP */
589 update_progress_dlg(progbar, progbar_val, status_str);
591 progbar_nextstep += progbar_quantum;
596 /* Well, the user decided to abort the read. He/She will be warned and
597 it might be enough for him/her to work with the already loaded
599 This is especially true for very large capture files, where you don't
600 want to wait loading the whole file (which may last minutes or even
601 hours even on fast machines) just to see that it was the wrong file. */
605 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
607 CATCH(OutOfMemoryError) {
610 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
611 "%sOut Of Memory!%s\n"
613 "Sorry, but Wireshark has to terminate now!\n"
615 "Some infos / workarounds can be found at:\n"
616 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
617 simple_dialog_primary_start(), simple_dialog_primary_end());
618 /* we have to terminate, as we cannot recover from the memory error */
619 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
621 main_window_update();
622 /* XXX - how to avoid a busy wait? */
630 /* Cleanup and release all dfilter resources */
632 dfilter_free(dfcode);
635 /* We're done reading the file; destroy the progress bar if it was created. */
637 destroy_progress_dlg(progbar);
639 /* We're done reading sequentially through the file. */
640 cf->state = FILE_READ_DONE;
642 /* Close the sequential I/O side, to free up memory it requires. */
643 wtap_sequential_close(cf->wth);
645 /* Allow the protocol dissectors to free up memory that they
646 * don't need after the sequential run-through of the packets. */
647 postseq_cleanup_all_protocols();
649 /* compute the time it took to load the file */
650 compute_elapsed(&start_time);
652 /* Set the file encapsulation type now; we don't know what it is until
653 we've looked at all the packets, as we don't know until then whether
654 there's more than one type (and thus whether it's
655 WTAP_ENCAP_PER_PACKET). */
656 cf->lnk_t = wtap_file_encap(cf->wth);
658 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
661 new_packet_list_thaw();
662 if (from_save == FALSE)
663 cf_callback_invoke(cf_cb_file_read_finished, cf);
665 cf_callback_invoke(cf_cb_file_save_finished, cf);
667 /* If we have any displayed packets to select, select the first of those
668 packets by making the first row the selected row. */
669 if (cf->first_displayed != 0){
670 new_packet_list_select_first_row();
674 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
675 "%sFile loading was cancelled!%s\n"
677 "The remaining packets in the file were discarded.\n"
679 "As a lot of packets from the original file will be missing,\n"
680 "remember to be careful when saving the current content to a file.\n",
681 simple_dialog_primary_start(), simple_dialog_primary_end());
682 return CF_READ_ERROR;
686 /* Put up a message box noting that the read failed somewhere along
687 the line. Don't throw out the stuff we managed to read, though,
691 case WTAP_ERR_UNSUPPORTED_ENCAP:
692 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
693 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
696 errmsg = errmsg_errno;
699 case WTAP_ERR_CANT_READ:
700 errmsg = "An attempt to read from the capture file failed for"
701 " some unknown reason.";
704 case WTAP_ERR_SHORT_READ:
705 errmsg = "The capture file appears to have been cut short"
706 " in the middle of a packet.";
709 case WTAP_ERR_BAD_FILE:
710 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
711 "The capture file appears to be damaged or corrupt.\n(%s)",
714 errmsg = errmsg_errno;
717 case WTAP_ERR_DECOMPRESS:
718 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
719 "The compressed capture file appears to be damaged or corrupt.\n"
722 errmsg = errmsg_errno;
726 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
727 "An error occurred while reading the"
728 " capture file: %s.", wtap_strerror(err));
729 errmsg = errmsg_errno;
732 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
733 return CF_READ_ERROR;
740 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
742 cf_status_t cf_status;
744 cf_status = cf_open(cf, fname, is_tempfile, err);
749 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
751 gint64 data_offset = 0;
753 volatile int newly_displayed_packets = 0;
755 gboolean filtering_tap_listeners;
759 /* Compile the current display filter.
760 * We assume this will not fail since cf->dfilter is only set in
761 * cf_filter IFF the filter was valid.
763 compiled = dfilter_compile(cf->dfilter, &dfcode);
764 g_assert(!cf->dfilter || (compiled && dfcode));
766 /* Do we have any tap listeners with filters? */
767 filtering_tap_listeners = have_filtering_tap_listeners();
769 /* Get the union of the flags for all tap listeners. */
770 tap_flags = union_of_tap_listener_flags();
774 new_packet_list_check_end();
775 /* Don't freeze/thaw the list when doing live capture */
776 /*new_packet_list_freeze();*/
778 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
780 while (to_read != 0) {
781 wtap_cleareof(cf->wth);
782 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
785 if (cf->state == FILE_READ_ABORTED) {
786 /* Well, the user decided to exit Wireshark. Break out of the
787 loop, and let the code below (which is called even if there
788 aren't any packets left to read) exit. */
792 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
793 data_offset) != -1) {
794 newly_displayed_packets++;
797 CATCH(OutOfMemoryError) {
800 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
801 "%sOut Of Memory!%s\n"
803 "Sorry, but Wireshark has to terminate now!\n"
805 "The capture file is not lost, it can be found at:\n"
808 "Some infos / workarounds can be found at:\n"
809 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
810 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
811 /* we have to terminate, as we cannot recover from the memory error */
812 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
814 main_window_update();
815 /* XXX - how to avoid a busy wait? */
818 /* Don't freeze/thaw the list when doing live capture */
819 /*new_packet_list_thaw();*/
820 return CF_READ_ABORTED;
826 /* Cleanup and release all dfilter resources */
828 dfilter_free(dfcode);
831 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
832 cf->count, cf->state, *err);*/
834 /* Don't freeze/thaw the list when doing live capture */
835 /*new_packet_list_thaw();*/
836 /* With the new packet list the first packet
837 * isn't automatically selected.
839 if(!cf->current_frame)
840 new_packet_list_select_first_row();
842 /* moving to the end of the packet list - if the user requested so and
843 we have some new packets. */
844 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
845 new_packet_list_moveto_end();
847 if (cf->state == FILE_READ_ABORTED) {
848 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
849 so that our caller can kill off the capture child process;
850 this will cause an EOF on the pipe from the child, so
851 "cf_finish_tail()" will be called, and it will clean up
853 return CF_READ_ABORTED;
854 } else if (*err != 0) {
855 /* We got an error reading the capture file.
856 XXX - pop up a dialog box instead? */
857 g_warning("Error \"%s\" while reading: \"%s\"\n",
858 wtap_strerror(*err), cf->filename);
860 return CF_READ_ERROR;
866 cf_fake_continue_tail(capture_file *cf) {
867 cf->state = FILE_READ_DONE;
871 cf_finish_tail(capture_file *cf, int *err)
876 gboolean filtering_tap_listeners;
880 /* Compile the current display filter.
881 * We assume this will not fail since cf->dfilter is only set in
882 * cf_filter IFF the filter was valid.
884 compiled = dfilter_compile(cf->dfilter, &dfcode);
885 g_assert(!cf->dfilter || (compiled && dfcode));
887 /* Do we have any tap listeners with filters? */
888 filtering_tap_listeners = have_filtering_tap_listeners();
890 /* Get the union of the flags for all tap listeners. */
891 tap_flags = union_of_tap_listener_flags();
893 if(cf->wth == NULL) {
895 return CF_READ_ERROR;
898 new_packet_list_check_end();
899 /* Don't freeze/thaw the list when doing live capture */
900 /*new_packet_list_freeze();*/
902 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
903 if (cf->state == FILE_READ_ABORTED) {
904 /* Well, the user decided to abort the read. Break out of the
905 loop, and let the code below (which is called even if there
906 aren't any packets left to read) exit. */
909 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
912 /* Cleanup and release all dfilter resources */
914 dfilter_free(dfcode);
917 /* Don't freeze/thaw the list when doing live capture */
918 /*new_packet_list_thaw();*/
920 if (cf->state == FILE_READ_ABORTED) {
921 /* Well, the user decided to abort the read. We're only called
922 when the child capture process closes the pipe to us (meaning
923 it's probably exited), so we can just close the capture
924 file; we return CF_READ_ABORTED so our caller can do whatever
925 is appropriate when that happens. */
927 return CF_READ_ABORTED;
930 if (auto_scroll_live && cf->count != 0)
931 new_packet_list_moveto_end();
933 /* We're done reading sequentially through the file. */
934 cf->state = FILE_READ_DONE;
936 /* We're done reading sequentially through the file; close the
937 sequential I/O side, to free up memory it requires. */
938 wtap_sequential_close(cf->wth);
940 /* Allow the protocol dissectors to free up memory that they
941 * don't need after the sequential run-through of the packets. */
942 postseq_cleanup_all_protocols();
944 /* Set the file encapsulation type now; we don't know what it is until
945 we've looked at all the packets, as we don't know until then whether
946 there's more than one type (and thus whether it's
947 WTAP_ENCAP_PER_PACKET). */
948 cf->lnk_t = wtap_file_encap(cf->wth);
951 /* We got an error reading the capture file.
952 XXX - pop up a dialog box? */
953 return CF_READ_ERROR;
958 #endif /* HAVE_LIBPCAP */
961 cf_get_display_name(capture_file *cf)
963 const gchar *displayname;
965 /* Return a name to use in displays */
966 if (!cf->is_tempfile) {
967 /* Get the last component of the file name, and use that. */
969 displayname = get_basename(cf->filename);
971 displayname="(No file)";
974 /* The file we read is a temporary file from a live capture;
975 we don't mention its name. */
977 displayname = cf->source;
979 displayname = "(Untitled)";
985 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
991 cf->source = g_strdup(source);
993 cf->source = g_strdup("");
997 const gchar *cf_get_tempfile_source(capture_file *cf) {
1005 /* XXX - use a macro instead? */
1007 cf_get_packet_count(capture_file *cf)
1012 /* XXX - use a macro instead? */
1014 cf_set_packet_count(capture_file *cf, int packet_count)
1016 cf->count = packet_count;
1019 /* XXX - use a macro instead? */
1021 cf_is_tempfile(capture_file *cf)
1023 return cf->is_tempfile;
1026 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1028 cf->is_tempfile = is_tempfile;
1032 /* XXX - use a macro instead? */
1033 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1035 cf->drops_known = drops_known;
1038 /* XXX - use a macro instead? */
1039 void cf_set_drops(capture_file *cf, guint32 drops)
1044 /* XXX - use a macro instead? */
1045 gboolean cf_get_drops_known(capture_file *cf)
1047 return cf->drops_known;
1050 /* XXX - use a macro instead? */
1051 guint32 cf_get_drops(capture_file *cf)
1056 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1058 cf->rfcode = rfcode;
1062 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1063 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1065 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1067 gboolean add_to_packet_list)
1069 gboolean create_proto_tree = FALSE;
1074 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1076 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1077 &first_ts, &prev_dis_ts, &prev_cap_ts);
1080 + we have a display filter and are re-applying it;
1081 + we have tap listeners with filters;
1082 + we have tap listeners that require a protocol tree;
1084 allocate a protocol tree root node, so that we'll construct
1085 a protocol tree against which a filter expression can be
1087 if ((dfcode != NULL && refilter) ||
1088 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1089 create_proto_tree = TRUE;
1091 /* Dissect the frame. */
1092 epan_dissect_init(&edt, create_proto_tree, FALSE);
1094 if (dfcode != NULL && refilter) {
1095 epan_dissect_prime_dfilter(&edt, dfcode);
1098 tap_queue_init(&edt);
1099 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1100 tap_push_tapped_queue(&edt);
1102 /* If we have a display filter, apply it if we're refiltering, otherwise
1103 leave the "passed_dfilter" flag alone.
1105 If we don't have a display filter, set "passed_dfilter" to 1. */
1106 if (dfcode != NULL) {
1108 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1111 fdata->flags.passed_dfilter = 1;
1113 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1114 cf->displayed_count++;
1116 if (add_to_packet_list) {
1117 /* We fill the needed columns from new_packet_list */
1118 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1121 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1123 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1125 /* If we haven't yet seen the first frame, this is it.
1127 XXX - we must do this before we add the row to the display,
1128 as, if the display's GtkCList's selection mode is
1129 GTK_SELECTION_BROWSE, when the first entry is added to it,
1130 "cf_select_packet()" will be called, and it will fetch the row
1131 data for the 0th row, and will get a null pointer rather than
1132 "fdata", as "gtk_clist_append()" won't yet have returned and
1133 thus "gtk_clist_set_row_data()" won't yet have been called.
1135 We thus need to leave behind bread crumbs so that
1136 "cf_select_packet()" can find this frame. See the comment
1137 in "cf_select_packet()". */
1138 if (cf->first_displayed == 0)
1139 cf->first_displayed = fdata->num;
1141 /* This is the last frame we've seen so far. */
1142 cf->last_displayed = fdata->num;
1145 epan_dissect_cleanup(&edt);
1149 /* read in a new packet */
1150 /* returns the row of the new packet in the packet list or -1 if not displayed */
1152 read_packet(capture_file *cf, dfilter_t *dfcode,
1153 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1155 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1156 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1157 const guchar *buf = wtap_buf_ptr(cf->wth);
1164 /* The frame number of this packet is one more than the count of
1165 frames in this packet. */
1166 framenum = cf->count + 1;
1168 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1173 epan_dissect_init(&edt, TRUE, FALSE);
1174 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1175 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1176 passed = dfilter_apply_edt(cf->rfcode, &edt);
1177 epan_dissect_cleanup(&edt);
1181 /* This does a shallow copy of fdlocal, which is good enough. */
1182 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1185 cf->f_datalen = offset + fdlocal.cap_len;
1187 if (!cf->redissecting) {
1188 row = add_packet_to_packet_list(fdata, cf, dfcode,
1189 filtering_tap_listeners, tap_flags,
1190 pseudo_header, buf, TRUE, TRUE);
1198 cf_merge_files(char **out_filenamep, int in_file_count,
1199 char *const *in_filenames, int file_type, gboolean do_append)
1201 merge_in_file_t *in_files, *in_file;
1206 int open_err, read_err, write_err, close_err;
1210 char errmsg_errno[1024+1];
1212 gboolean got_read_error = FALSE, got_write_error = FALSE;
1214 progdlg_t *progbar = NULL;
1216 gint64 f_len, file_pos;
1218 GTimeVal start_time;
1219 gchar status_str[100];
1220 gint64 progbar_nextstep;
1221 gint64 progbar_quantum;
1223 /* open the input files */
1224 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1225 &open_err, &err_info, &err_fileno)) {
1227 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1232 if (*out_filenamep != NULL) {
1233 out_filename = *out_filenamep;
1234 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1238 out_fd = create_tempfile(&tmpname, "wireshark");
1241 out_filename = g_strdup(tmpname);
1242 *out_filenamep = out_filename;
1246 merge_close_in_files(in_file_count, in_files);
1248 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1252 pdh = wtap_dump_fdopen(out_fd, file_type,
1253 merge_select_frame_type(in_file_count, in_files),
1254 merge_max_snapshot_length(in_file_count, in_files),
1255 FALSE /* compressed */, &open_err);
1258 merge_close_in_files(in_file_count, in_files);
1260 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1265 /* Get the sum of the sizes of all the files. */
1267 for (i = 0; i < in_file_count; i++)
1268 f_len += in_files[i].size;
1270 /* Update the progress bar when it gets to this value. */
1271 progbar_nextstep = 0;
1272 /* When we reach the value that triggers a progress bar update,
1273 bump that value by this amount. */
1274 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1275 /* Progress so far. */
1279 g_get_current_time(&start_time);
1281 /* do the merge (or append) */
1284 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1287 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1289 if (in_file == NULL) {
1294 if (read_err != 0) {
1295 /* I/O error reading from in_file */
1296 got_read_error = TRUE;
1300 /* Get the sum of the data offsets in all of the files. */
1302 for (i = 0; i < in_file_count; i++)
1303 data_offset += in_files[i].data_offset;
1305 /* Create the progress bar if necessary.
1306 We check on every iteration of the loop, so that it takes no
1307 longer than the standard time to create it (otherwise, for a
1308 large file, we might take considerably longer than that standard
1309 time in order to get to the next progress bar step). */
1310 if (progbar == NULL) {
1311 progbar = delayed_create_progress_dlg("Merging", "files",
1312 FALSE, &stop_flag, &start_time, progbar_val);
1315 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1316 when we update it, we have to run the GTK+ main loop to get it
1317 to repaint what's pending, and doing so may involve an "ioctl()"
1318 to see if there's any pending input from an X server, and doing
1319 that for every packet can be costly, especially on a big file. */
1320 if (data_offset >= progbar_nextstep) {
1321 /* Get the sum of the seek positions in all of the files. */
1323 for (i = 0; i < in_file_count; i++)
1324 file_pos += wtap_read_so_far(in_files[i].wth);
1325 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1326 if (progbar_val > 1.0f) {
1327 /* Some file probably grew while we were reading it.
1328 That "shouldn't happen", so we'll just clip the progress
1332 if (progbar != NULL) {
1333 g_snprintf(status_str, sizeof(status_str),
1334 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1335 file_pos / 1024, f_len / 1024);
1336 update_progress_dlg(progbar, progbar_val, status_str);
1338 progbar_nextstep += progbar_quantum;
1342 /* Well, the user decided to abort the merge. */
1346 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1347 wtap_buf_ptr(in_file->wth), &write_err)) {
1348 got_write_error = TRUE;
1353 /* We're done merging the files; destroy the progress bar if it was created. */
1354 if (progbar != NULL)
1355 destroy_progress_dlg(progbar);
1357 merge_close_in_files(in_file_count, in_files);
1358 if (!got_read_error && !got_write_error) {
1359 if (!wtap_dump_close(pdh, &write_err))
1360 got_write_error = TRUE;
1362 wtap_dump_close(pdh, &close_err);
1364 if (got_read_error) {
1366 * Find the file on which we got the error, and report the error.
1368 for (i = 0; i < in_file_count; i++) {
1369 if (in_files[i].state == GOT_ERROR) {
1370 /* Put up a message box noting that a read failed somewhere along
1374 case WTAP_ERR_UNSUPPORTED_ENCAP:
1375 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1376 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1379 errmsg = errmsg_errno;
1382 case WTAP_ERR_CANT_READ:
1383 errmsg = "An attempt to read from the capture file %s failed for"
1384 " some unknown reason.";
1387 case WTAP_ERR_SHORT_READ:
1388 errmsg = "The capture file %s appears to have been cut short"
1389 " in the middle of a packet.";
1392 case WTAP_ERR_BAD_FILE:
1393 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1394 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1397 errmsg = errmsg_errno;
1400 case WTAP_ERR_DECOMPRESS:
1401 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1402 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1405 errmsg = errmsg_errno;
1409 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1410 "An error occurred while reading the"
1411 " capture file %%s: %s.", wtap_strerror(read_err));
1412 errmsg = errmsg_errno;
1415 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1420 if (got_write_error) {
1421 /* Put up an alert box for the write error. */
1422 if (write_err < 0) {
1423 /* Wiretap error. */
1424 switch (write_err) {
1426 case WTAP_ERR_UNSUPPORTED_ENCAP:
1428 * This is a problem with the particular frame we're writing;
1429 * note that, and give the frame number.
1431 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1432 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1433 in_file->packet_num, in_file->filename,
1434 wtap_file_type_string(file_type));
1438 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1439 "An error occurred while writing to the file \"%s\": %s.",
1440 out_filename, wtap_strerror(write_err));
1445 write_failure_alert_box(out_filename, write_err);
1449 if (got_read_error || got_write_error || stop_flag) {
1450 /* Callers aren't expected to treat an error or an explicit abort
1451 differently - we put up error dialogs ourselves, so they don't
1459 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1461 const char *filter_new = dftext ? dftext : "";
1462 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1464 GTimeVal start_time;
1466 /* if new filter equals old one, do nothing unless told to do so */
1467 if (!force && strcmp(filter_new, filter_old) == 0) {
1473 if (dftext == NULL) {
1474 /* The new filter is an empty filter (i.e., display all packets).
1475 * so leave dfcode==NULL
1479 * We have a filter; make a copy of it (as we'll be saving it),
1480 * and try to compile it.
1482 dftext = g_strdup(dftext);
1483 if (!dfilter_compile(dftext, &dfcode)) {
1484 /* The attempt failed; report an error. */
1485 gchar *safe_dftext = simple_dialog_format_message(dftext);
1486 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1488 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1491 "The following display filter isn't a valid display filter:\n%s\n"
1492 "See the help for a description of the display filter syntax.",
1493 simple_dialog_primary_start(), safe_dfilter_error_msg,
1494 simple_dialog_primary_end(), safe_dftext);
1495 g_free(safe_dfilter_error_msg);
1496 g_free(safe_dftext);
1502 if (dfcode == NULL) {
1503 /* Yes - free the filter text, and set it to null. */
1509 /* We have a valid filter. Replace the current filter. */
1510 g_free(cf->dfilter);
1511 cf->dfilter = dftext;
1512 g_get_current_time(&start_time);
1515 /* Now rescan the packet list, applying the new filter, but not
1516 throwing away information constructed on a previous pass. */
1517 if (dftext == NULL) {
1518 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1520 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1523 /* Cleanup and release all dfilter resources */
1524 dfilter_free(dfcode);
1530 cf_reftime_packets(capture_file *cf)
1533 ref_time_packets(cf);
1537 cf_redissect_packets(capture_file *cf)
1539 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1543 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1544 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1548 char errmsg_errno[1024+1];
1550 #ifdef WANT_PACKET_EDITOR
1551 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1552 if (G_UNLIKELY(fdata->file_off == -1)) {
1553 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1556 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "fdata->file_off == -1, but can't find modified frame!");
1560 *pseudo_header = frame->ph;
1561 memcpy(pd, frame->pd, fdata->cap_len);
1566 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1567 fdata->cap_len, &err, &err_info)) {
1570 case WTAP_ERR_UNSUPPORTED_ENCAP:
1571 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1572 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1577 case WTAP_ERR_BAD_FILE:
1578 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1579 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1580 wtap_strerror(err), err_info);
1585 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1586 "An error occurred while reading from the file \"%%s\": %s.",
1587 wtap_strerror(err));
1590 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1597 cf_read_frame(capture_file *cf, frame_data *fdata)
1599 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1602 /* Rescan the list of packets, reconstructing the CList.
1604 "action" describes why we're doing this; it's used in the progress
1607 "action_item" describes what we're doing; it's used in the progress
1610 "refilter" is TRUE if we need to re-evaluate the filter expression.
1612 "redissect" is TRUE if we need to make the dissectors reconstruct
1613 any state information they have (because a preference that affects
1614 some dissector has changed, meaning some dissector might construct
1615 its state differently from the way it was constructed the last time). */
1617 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1618 gboolean refilter, gboolean redissect)
1620 /* Rescan packets new packet list */
1623 progdlg_t *progbar = NULL;
1626 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1627 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1628 gboolean selected_frame_seen;
1630 GTimeVal start_time;
1631 gchar status_str[100];
1632 int progbar_nextstep;
1633 int progbar_quantum;
1635 gboolean filtering_tap_listeners;
1637 gboolean add_to_packet_list = FALSE;
1640 /* Compile the current display filter.
1641 * We assume this will not fail since cf->dfilter is only set in
1642 * cf_filter IFF the filter was valid.
1644 compiled = dfilter_compile(cf->dfilter, &dfcode);
1645 g_assert(!cf->dfilter || (compiled && dfcode));
1647 /* Do we have any tap listeners with filters? */
1648 filtering_tap_listeners = have_filtering_tap_listeners();
1650 /* Get the union of the flags for all tap listeners. */
1651 tap_flags = union_of_tap_listener_flags();
1653 reset_tap_listeners();
1654 /* Which frame, if any, is the currently selected frame?
1655 XXX - should the selected frame or the focus frame be the "current"
1656 frame, that frame being the one from which "Find Frame" searches
1658 selected_frame = cf->current_frame;
1660 /* Mark frame num as not found */
1661 selected_frame_num = -1;
1663 /* Freeze the packet list while we redo it, so we don't get any
1664 screen updates while it happens. */
1665 new_packet_list_freeze();
1668 /* We need to re-initialize all the state information that protocols
1669 keep, because some preference that controls a dissector has changed,
1670 which might cause the state information to be constructed differently
1671 by that dissector. */
1673 /* We might receive new packets while redissecting, and we don't
1674 want to dissect those before their time. */
1675 cf->redissecting = TRUE;
1677 /* Cleanup all data structures used for dissection. */
1678 cleanup_dissection();
1679 /* Initialize all data structures used for dissection. */
1682 /* We need to redissect the packets so we have to discard our old
1683 * packet list store. */
1684 new_packet_list_clear();
1685 add_to_packet_list = TRUE;
1688 /* We don't yet know which will be the first and last frames displayed. */
1689 cf->first_displayed = 0;
1690 cf->last_displayed = 0;
1692 /* We currently don't display any packets */
1693 cf->displayed_count = 0;
1695 /* Iterate through the list of frames. Call a routine for each frame
1696 to check whether it should be displayed and, if so, add it to
1697 the display list. */
1698 nstime_set_unset(&first_ts);
1699 nstime_set_unset(&prev_dis_ts);
1700 nstime_set_unset(&prev_cap_ts);
1703 /* Update the progress bar when it gets to this value. */
1704 progbar_nextstep = 0;
1705 /* When we reach the value that triggers a progress bar update,
1706 bump that value by this amount. */
1707 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1708 /* Count of packets at which we've looked. */
1710 /* Progress so far. */
1714 g_get_current_time(&start_time);
1716 /* no previous row yet */
1717 prev_frame_num = -1;
1720 preceding_frame_num = -1;
1721 preceding_frame = NULL;
1722 following_frame_num = -1;
1723 following_frame = NULL;
1725 selected_frame_seen = FALSE;
1727 for (framenum = 1; framenum <= cf->count; framenum++) {
1728 fdata = frame_data_sequence_find(cf->frames, framenum);
1730 /* Create the progress bar if necessary.
1731 We check on every iteration of the loop, so that it takes no
1732 longer than the standard time to create it (otherwise, for a
1733 large file, we might take considerably longer than that standard
1734 time in order to get to the next progress bar step). */
1735 if (progbar == NULL)
1736 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1737 &stop_flag, &start_time,
1740 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1741 when we update it, we have to run the GTK+ main loop to get it
1742 to repaint what's pending, and doing so may involve an "ioctl()"
1743 to see if there's any pending input from an X server, and doing
1744 that for every packet can be costly, especially on a big file. */
1745 if (count >= progbar_nextstep) {
1746 /* let's not divide by zero. I should never be started
1747 * with count == 0, so let's assert that
1749 g_assert(cf->count > 0);
1750 progbar_val = (gfloat) count / cf->count;
1752 if (progbar != NULL) {
1753 g_snprintf(status_str, sizeof(status_str),
1754 "%4u of %u frames", count, cf->count);
1755 update_progress_dlg(progbar, progbar_val, status_str);
1758 progbar_nextstep += progbar_quantum;
1762 /* Well, the user decided to abort the filtering. Just stop.
1764 XXX - go back to the previous filter? Users probably just
1765 want not to wait for a filtering operation to finish;
1766 unless we cancel by having no filter, reverting to the
1767 previous filter will probably be even more expensive than
1768 continuing the filtering, as it involves going back to the
1769 beginning and filtering, and even with no filter we currently
1770 have to re-generate the entire clist, which is also expensive.
1772 I'm not sure what Network Monitor does, but it doesn't appear
1773 to give you an unfiltered display if you cancel. */
1780 /* Since all state for the frame was destroyed, mark the frame
1781 * as not visited, free the GSList referring to the state
1782 * data (the per-frame data itself was freed by
1783 * "init_dissection()"), and null out the GSList pointer. */
1784 fdata->flags.visited = 0;
1785 frame_data_cleanup(fdata);
1788 if (!cf_read_frame(cf, fdata))
1789 break; /* error reading the frame */
1791 /* If the previous frame is displayed, and we haven't yet seen the
1792 selected frame, remember that frame - it's the closest one we've
1793 yet seen before the selected frame. */
1794 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1795 preceding_frame_num = prev_frame_num;
1796 preceding_frame = prev_frame;
1798 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1799 tap_flags, &cf->pseudo_header, cf->pd,
1801 add_to_packet_list);
1803 /* If this frame is displayed, and this is the first frame we've
1804 seen displayed after the selected frame, remember this frame -
1805 it's the closest one we've yet seen at or after the selected
1807 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1808 following_frame_num = fdata->num;
1809 following_frame = fdata;
1811 if (fdata == selected_frame) {
1812 selected_frame_seen = TRUE;
1813 if (fdata->flags.passed_dfilter)
1814 selected_frame_num = fdata->num;
1817 /* Remember this frame - it'll be the previous frame
1818 on the next pass through the loop. */
1819 prev_frame_num = fdata->num;
1823 /* We are done redissecting the packet list. */
1824 cf->redissecting = FALSE;
1827 /* Clear out what remains of the visited flags and per-frame data
1830 XXX - that may cause various forms of bogosity when dissecting
1831 these frames, as they won't have been seen by this sequential
1832 pass, but the only alternative I see is to keep scanning them
1833 even though the user requested that the scan stop, and that
1834 would leave the user stuck with an Wireshark grinding on
1835 until it finishes. Should we just stick them with that? */
1836 for (; framenum <= cf->count; framenum++) {
1837 fdata = frame_data_sequence_find(cf->frames, framenum);
1838 fdata->flags.visited = 0;
1839 frame_data_cleanup(fdata);
1843 /* We're done filtering the packets; destroy the progress bar if it
1845 if (progbar != NULL)
1846 destroy_progress_dlg(progbar);
1848 /* Unfreeze the packet list. */
1849 if (!add_to_packet_list)
1850 new_packet_list_recreate_visible_rows();
1852 /* Compute the time it took to filter the file */
1853 compute_elapsed(&start_time);
1855 new_packet_list_thaw();
1857 if (selected_frame_num == -1) {
1858 /* The selected frame didn't pass the filter. */
1859 if (selected_frame == NULL) {
1860 /* That's because there *was* no selected frame. Make the first
1861 displayed frame the current frame. */
1862 selected_frame_num = 0;
1864 /* Find the nearest displayed frame to the selected frame (whether
1865 it's before or after that frame) and make that the current frame.
1866 If the next and previous displayed frames are equidistant from the
1867 selected frame, choose the next one. */
1868 g_assert(following_frame == NULL ||
1869 following_frame->num >= selected_frame->num);
1870 g_assert(preceding_frame == NULL ||
1871 preceding_frame->num <= selected_frame->num);
1872 if (following_frame == NULL) {
1873 /* No frame after the selected frame passed the filter, so we
1874 have to select the last displayed frame before the selected
1876 selected_frame_num = preceding_frame_num;
1877 selected_frame = preceding_frame;
1878 } else if (preceding_frame == NULL) {
1879 /* No frame before the selected frame passed the filter, so we
1880 have to select the first displayed frame after the selected
1882 selected_frame_num = following_frame_num;
1883 selected_frame = following_frame;
1885 /* Frames before and after the selected frame passed the filter, so
1886 we'll select the previous frame */
1887 selected_frame_num = preceding_frame_num;
1888 selected_frame = preceding_frame;
1893 if (selected_frame_num == -1) {
1894 /* There are no frames displayed at all. */
1895 cf_unselect_packet(cf);
1897 /* Either the frame that was selected passed the filter, or we've
1898 found the nearest displayed frame to that frame. Select it, make
1899 it the focus row, and make it visible. */
1900 /* Set to invalid to force update of packet list and packet details */
1901 cf->current_row = -1;
1902 if (selected_frame_num == 0) {
1903 new_packet_list_select_first_row();
1905 if (!new_packet_list_select_row_from_data(selected_frame)) {
1906 /* We didn't find a row corresponding to this frame.
1907 This means that the frame isn't being displayed currently,
1908 so we can't select it. */
1909 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1910 "%sEnd of capture exceeded!%s\n\n"
1911 "The capture file is probably not fully dissected.",
1912 simple_dialog_primary_start(), simple_dialog_primary_end());
1917 /* Cleanup and release all dfilter resources */
1918 dfilter_free(dfcode);
1923 * Scan trough all frame data and recalculate the ref time
1924 * without rereading the file.
1925 * XXX - do we need a progres bar or is this fast enough?
1928 ref_time_packets(capture_file *cf)
1933 nstime_set_unset(&first_ts);
1934 nstime_set_unset(&prev_dis_ts);
1937 for (framenum = 1; framenum <= cf->count; framenum++) {
1938 fdata = frame_data_sequence_find(cf->frames, framenum);
1940 /* just add some value here until we know if it is being displayed or not */
1941 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1947 /* If we don't have the time stamp of the first packet in the
1948 capture, it's because this is the first packet. Save the time
1949 stamp of this packet as the time stamp of the first packet. */
1950 if (nstime_is_unset(&first_ts)) {
1951 first_ts = fdata->abs_ts;
1953 /* if this frames is marked as a reference time frame, reset
1954 firstsec and firstusec to this frame */
1955 if(fdata->flags.ref_time){
1956 first_ts = fdata->abs_ts;
1959 /* If we don't have the time stamp of the previous displayed packet,
1960 it's because this is the first displayed packet. Save the time
1961 stamp of this packet as the time stamp of the previous displayed
1963 if (nstime_is_unset(&prev_dis_ts)) {
1964 prev_dis_ts = fdata->abs_ts;
1967 /* Get the time elapsed between the first packet and this packet. */
1968 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1970 /* If it's greater than the current elapsed time, set the elapsed time
1971 to it (we check for "greater than" so as not to be confused by
1972 time moving backwards). */
1973 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1974 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1975 cf->elapsed_time = fdata->rel_ts;
1978 /* If this frame is displayed, get the time elapsed between the
1979 previous displayed packet and this packet. */
1980 if( fdata->flags.passed_dfilter ) {
1981 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1982 prev_dis_ts = fdata->abs_ts;
1988 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
1989 /* This frame either passed the display filter list or is marked as
1990 a time reference frame. All time reference frames are displayed
1991 even if they dont pass the display filter */
1992 if(fdata->flags.ref_time){
1993 /* if this was a TIME REF frame we should reset the cum_bytes field */
1994 cum_bytes = fdata->pkt_len;
1995 fdata->cum_bytes = cum_bytes;
1997 /* increase cum_bytes with this packets length */
1998 cum_bytes += fdata->pkt_len;
2011 process_specified_packets(capture_file *cf, packet_range_t *range,
2012 const char *string1, const char *string2, gboolean terminate_is_stop,
2013 gboolean (*callback)(capture_file *, frame_data *,
2014 union wtap_pseudo_header *, const guint8 *, void *),
2015 void *callback_args)
2019 union wtap_pseudo_header pseudo_header;
2020 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2021 psp_return_t ret = PSP_FINISHED;
2023 progdlg_t *progbar = NULL;
2026 gboolean progbar_stop_flag;
2027 GTimeVal progbar_start_time;
2028 gchar progbar_status_str[100];
2029 int progbar_nextstep;
2030 int progbar_quantum;
2031 range_process_e process_this;
2033 /* Update the progress bar when it gets to this value. */
2034 progbar_nextstep = 0;
2035 /* When we reach the value that triggers a progress bar update,
2036 bump that value by this amount. */
2037 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2038 /* Count of packets at which we've looked. */
2040 /* Progress so far. */
2043 progbar_stop_flag = FALSE;
2044 g_get_current_time(&progbar_start_time);
2046 packet_range_process_init(range);
2048 /* Iterate through all the packets, printing the packets that
2049 were selected by the current display filter. */
2050 for (framenum = 1; framenum <= cf->count; framenum++) {
2051 fdata = frame_data_sequence_find(cf->frames, framenum);
2053 /* Create the progress bar if necessary.
2054 We check on every iteration of the loop, so that it takes no
2055 longer than the standard time to create it (otherwise, for a
2056 large file, we might take considerably longer than that standard
2057 time in order to get to the next progress bar step). */
2058 if (progbar == NULL)
2059 progbar = delayed_create_progress_dlg(string1, string2,
2062 &progbar_start_time,
2065 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2066 when we update it, we have to run the GTK+ main loop to get it
2067 to repaint what's pending, and doing so may involve an "ioctl()"
2068 to see if there's any pending input from an X server, and doing
2069 that for every packet can be costly, especially on a big file. */
2070 if (progbar_count >= progbar_nextstep) {
2071 /* let's not divide by zero. I should never be started
2072 * with count == 0, so let's assert that
2074 g_assert(cf->count > 0);
2075 progbar_val = (gfloat) progbar_count / cf->count;
2077 if (progbar != NULL) {
2078 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2079 "%4u of %u packets", progbar_count, cf->count);
2080 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2083 progbar_nextstep += progbar_quantum;
2086 if (progbar_stop_flag) {
2087 /* Well, the user decided to abort the operation. Just stop,
2088 and arrange to return PSP_STOPPED to our caller, so they know
2089 it was stopped explicitly. */
2096 /* do we have to process this packet? */
2097 process_this = packet_range_process_packet(range, fdata);
2098 if (process_this == range_process_next) {
2099 /* this packet uninteresting, continue with next one */
2101 } else if (process_this == range_processing_finished) {
2102 /* all interesting packets processed, stop the loop */
2106 /* Get the packet */
2107 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2108 /* Attempt to get the packet failed. */
2112 /* Process the packet */
2113 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2114 /* Callback failed. We assume it reported the error appropriately. */
2120 /* We're done printing the packets; destroy the progress bar if
2122 if (progbar != NULL)
2123 destroy_progress_dlg(progbar);
2129 gboolean construct_protocol_tree;
2131 } retap_callback_args_t;
2134 retap_packet(capture_file *cf _U_, frame_data *fdata,
2135 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2138 retap_callback_args_t *args = argsp;
2141 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2142 tap_queue_init(&edt);
2143 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2144 tap_push_tapped_queue(&edt);
2145 epan_dissect_cleanup(&edt);
2151 cf_retap_packets(capture_file *cf)
2153 packet_range_t range;
2154 retap_callback_args_t callback_args;
2155 gboolean filtering_tap_listeners;
2158 /* Do we have any tap listeners with filters? */
2159 filtering_tap_listeners = have_filtering_tap_listeners();
2161 tap_flags = union_of_tap_listener_flags();
2163 /* If any tap listeners have filters, or require the protocol tree,
2164 construct the protocol tree. */
2165 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2166 (tap_flags & TL_REQUIRES_PROTO_TREE);
2168 /* If any tap listeners require the columns, construct them. */
2169 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2171 /* Reset the tap listeners. */
2172 reset_tap_listeners();
2174 /* Iterate through the list of packets, dissecting all packets and
2175 re-running the taps. */
2176 packet_range_init(&range);
2177 packet_range_process_init(&range);
2178 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2179 "all packets", TRUE, retap_packet,
2182 /* Completed successfully. */
2186 /* Well, the user decided to abort the refiltering.
2187 Return CF_READ_ABORTED so our caller knows they did that. */
2188 return CF_READ_ABORTED;
2191 /* Error while retapping. */
2192 return CF_READ_ERROR;
2195 g_assert_not_reached();
2200 print_args_t *print_args;
2201 gboolean print_header_line;
2202 char *header_line_buf;
2203 int header_line_buf_len;
2204 gboolean print_formfeed;
2205 gboolean print_separator;
2209 } print_callback_args_t;
2212 print_packet(capture_file *cf, frame_data *fdata,
2213 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2216 print_callback_args_t *args = argsp;
2223 gboolean proto_tree_needed;
2224 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2225 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2227 /* Create the protocol tree, and make it visible, if we're printing
2228 the dissection or the hex data.
2229 XXX - do we need it if we're just printing the hex data? */
2231 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2232 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2234 /* Fill in the column information if we're printing the summary
2236 if (args->print_args->print_summary) {
2237 col_custom_prime_edt(&edt, &cf->cinfo);
2238 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2239 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2241 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2243 if (args->print_formfeed) {
2244 if (!new_page(args->print_args->stream))
2247 if (args->print_separator) {
2248 if (!print_line(args->print_args->stream, 0, ""))
2254 * We generate bookmarks, if the output format supports them.
2255 * The name is "__frameN__".
2257 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2259 if (args->print_args->print_summary) {
2260 if (args->print_header_line) {
2261 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2263 args->print_header_line = FALSE; /* we might not need to print any more */
2265 cp = &args->line_buf[0];
2267 for (i = 0; i < cf->cinfo.num_cols; i++) {
2268 /* Find the length of the string for this column. */
2269 column_len = (int) strlen(cf->cinfo.col_data[i]);
2270 if (args->col_widths[i] > column_len)
2271 column_len = args->col_widths[i];
2273 /* Make sure there's room in the line buffer for the column; if not,
2274 double its length. */
2275 line_len += column_len + 1; /* "+1" for space */
2276 if (line_len > args->line_buf_len) {
2277 cp_off = (int) (cp - args->line_buf);
2278 args->line_buf_len = 2 * line_len;
2279 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2280 cp = args->line_buf + cp_off;
2283 /* Right-justify the packet number column. */
2284 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2285 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2287 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2289 if (i != cf->cinfo.num_cols - 1)
2295 * Generate a bookmark, using the summary line as the title.
2297 if (!print_bookmark(args->print_args->stream, bookmark_name,
2301 if (!print_line(args->print_args->stream, 0, args->line_buf))
2305 * Generate a bookmark, using "Frame N" as the title, as we're not
2306 * printing the summary line.
2308 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2309 if (!print_bookmark(args->print_args->stream, bookmark_name,
2312 } /* if (print_summary) */
2314 if (args->print_args->print_dissections != print_dissections_none) {
2315 if (args->print_args->print_summary) {
2316 /* Separate the summary line from the tree with a blank line. */
2317 if (!print_line(args->print_args->stream, 0, ""))
2321 /* Print the information in that tree. */
2322 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2325 /* Print a blank line if we print anything after this (aka more than one packet). */
2326 args->print_separator = TRUE;
2328 /* Print a header line if we print any more packet summaries */
2329 args->print_header_line = TRUE;
2332 if (args->print_args->print_hex) {
2333 /* Print the full packet data as hex. */
2334 if (!print_hex_data(args->print_args->stream, &edt))
2337 /* Print a blank line if we print anything after this (aka more than one packet). */
2338 args->print_separator = TRUE;
2340 /* Print a header line if we print any more packet summaries */
2341 args->print_header_line = TRUE;
2342 } /* if (args->print_args->print_dissections != print_dissections_none) */
2344 epan_dissect_cleanup(&edt);
2346 /* do we want to have a formfeed between each packet from now on? */
2347 if(args->print_args->print_formfeed) {
2348 args->print_formfeed = TRUE;
2354 epan_dissect_cleanup(&edt);
2359 cf_print_packets(capture_file *cf, print_args_t *print_args)
2362 print_callback_args_t callback_args;
2370 callback_args.print_args = print_args;
2371 callback_args.print_header_line = TRUE;
2372 callback_args.header_line_buf = NULL;
2373 callback_args.header_line_buf_len = 256;
2374 callback_args.print_formfeed = FALSE;
2375 callback_args.print_separator = FALSE;
2376 callback_args.line_buf = NULL;
2377 callback_args.line_buf_len = 256;
2378 callback_args.col_widths = NULL;
2380 if (!print_preamble(print_args->stream, cf->filename)) {
2381 destroy_print_stream(print_args->stream);
2382 return CF_PRINT_WRITE_ERROR;
2385 if (print_args->print_summary) {
2386 /* We're printing packet summaries. Allocate the header line buffer
2387 and get the column widths. */
2388 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2390 /* Find the widths for each of the columns - maximum of the
2391 width of the title and the width of the data - and construct
2392 a buffer with a line containing the column titles. */
2393 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2394 cp = &callback_args.header_line_buf[0];
2396 for (i = 0; i < cf->cinfo.num_cols; i++) {
2397 /* Don't pad the last column. */
2398 if (i == cf->cinfo.num_cols - 1)
2399 callback_args.col_widths[i] = 0;
2401 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2402 data_width = get_column_char_width(get_column_format(i));
2403 if (data_width > callback_args.col_widths[i])
2404 callback_args.col_widths[i] = data_width;
2407 /* Find the length of the string for this column. */
2408 column_len = (int) strlen(cf->cinfo.col_title[i]);
2409 if (callback_args.col_widths[i] > column_len)
2410 column_len = callback_args.col_widths[i];
2412 /* Make sure there's room in the line buffer for the column; if not,
2413 double its length. */
2414 line_len += column_len + 1; /* "+1" for space */
2415 if (line_len > callback_args.header_line_buf_len) {
2416 cp_off = (int) (cp - callback_args.header_line_buf);
2417 callback_args.header_line_buf_len = 2 * line_len;
2418 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2419 callback_args.header_line_buf_len + 1);
2420 cp = callback_args.header_line_buf + cp_off;
2423 /* Right-justify the packet number column. */
2424 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2425 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2427 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2429 if (i != cf->cinfo.num_cols - 1)
2434 /* Now start out the main line buffer with the same length as the
2435 header line buffer. */
2436 callback_args.line_buf_len = callback_args.header_line_buf_len;
2437 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2438 } /* if (print_summary) */
2440 /* Iterate through the list of packets, printing the packets we were
2442 ret = process_specified_packets(cf, &print_args->range, "Printing",
2443 "selected packets", TRUE, print_packet,
2446 g_free(callback_args.header_line_buf);
2447 g_free(callback_args.line_buf);
2448 g_free(callback_args.col_widths);
2453 /* Completed successfully. */
2457 /* Well, the user decided to abort the printing.
2459 XXX - note that what got generated before they did that
2460 will get printed if we're piping to a print program; we'd
2461 have to write to a file and then hand that to the print
2462 program to make it actually not print anything. */
2466 /* Error while printing.
2468 XXX - note that what got generated before they did that
2469 will get printed if we're piping to a print program; we'd
2470 have to write to a file and then hand that to the print
2471 program to make it actually not print anything. */
2472 destroy_print_stream(print_args->stream);
2473 return CF_PRINT_WRITE_ERROR;
2476 if (!print_finale(print_args->stream)) {
2477 destroy_print_stream(print_args->stream);
2478 return CF_PRINT_WRITE_ERROR;
2481 if (!destroy_print_stream(print_args->stream))
2482 return CF_PRINT_WRITE_ERROR;
2488 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2489 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2495 /* Create the protocol tree, but don't fill in the column information. */
2496 epan_dissect_init(&edt, TRUE, TRUE);
2497 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2499 /* Write out the information in that tree. */
2500 proto_tree_write_pdml(&edt, fh);
2502 epan_dissect_cleanup(&edt);
2508 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2513 fh = ws_fopen(print_args->file, "w");
2515 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2517 write_pdml_preamble(fh, cf->filename);
2520 return CF_PRINT_WRITE_ERROR;
2523 /* Iterate through the list of packets, printing the packets we were
2525 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2526 "selected packets", TRUE,
2527 write_pdml_packet, fh);
2532 /* Completed successfully. */
2536 /* Well, the user decided to abort the printing. */
2540 /* Error while printing. */
2542 return CF_PRINT_WRITE_ERROR;
2545 write_pdml_finale(fh);
2548 return CF_PRINT_WRITE_ERROR;
2551 /* XXX - check for an error */
2558 write_psml_packet(capture_file *cf, frame_data *fdata,
2559 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2564 gboolean proto_tree_needed;
2566 /* Fill in the column information, only create the protocol tree
2567 if having custom columns. */
2568 proto_tree_needed = have_custom_cols(&cf->cinfo);
2569 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2570 col_custom_prime_edt(&edt, &cf->cinfo);
2571 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2572 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2574 /* Write out the information in that tree. */
2575 proto_tree_write_psml(&edt, fh);
2577 epan_dissect_cleanup(&edt);
2583 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2588 fh = ws_fopen(print_args->file, "w");
2590 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2592 write_psml_preamble(fh);
2595 return CF_PRINT_WRITE_ERROR;
2598 /* Iterate through the list of packets, printing the packets we were
2600 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2601 "selected packets", TRUE,
2602 write_psml_packet, fh);
2607 /* Completed successfully. */
2611 /* Well, the user decided to abort the printing. */
2615 /* Error while printing. */
2617 return CF_PRINT_WRITE_ERROR;
2620 write_psml_finale(fh);
2623 return CF_PRINT_WRITE_ERROR;
2626 /* XXX - check for an error */
2633 write_csv_packet(capture_file *cf, frame_data *fdata,
2634 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2639 gboolean proto_tree_needed;
2641 /* Fill in the column information, only create the protocol tree
2642 if having custom columns. */
2643 proto_tree_needed = have_custom_cols(&cf->cinfo);
2644 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2645 col_custom_prime_edt(&edt, &cf->cinfo);
2646 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2647 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2649 /* Write out the information in that tree. */
2650 proto_tree_write_csv(&edt, fh);
2652 epan_dissect_cleanup(&edt);
2658 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2663 fh = ws_fopen(print_args->file, "w");
2665 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2667 write_csv_preamble(fh);
2670 return CF_PRINT_WRITE_ERROR;
2673 /* Iterate through the list of packets, printing the packets we were
2675 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2676 "selected packets", TRUE,
2677 write_csv_packet, fh);
2682 /* Completed successfully. */
2686 /* Well, the user decided to abort the printing. */
2690 /* Error while printing. */
2692 return CF_PRINT_WRITE_ERROR;
2695 write_csv_finale(fh);
2698 return CF_PRINT_WRITE_ERROR;
2701 /* XXX - check for an error */
2708 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2709 union wtap_pseudo_header *pseudo_header,
2710 const guint8 *pd, void *argsp)
2715 epan_dissect_init(&edt, TRUE, TRUE);
2716 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2717 proto_tree_write_carrays(fdata->num, fh, &edt);
2718 epan_dissect_cleanup(&edt);
2724 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2729 fh = ws_fopen(print_args->file, "w");
2732 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2734 write_carrays_preamble(fh);
2738 return CF_PRINT_WRITE_ERROR;
2741 /* Iterate through the list of packets, printing the packets we were
2743 ret = process_specified_packets(cf, &print_args->range,
2745 "selected packets", TRUE,
2746 write_carrays_packet, fh);
2749 /* Completed successfully. */
2752 /* Well, the user decided to abort the printing. */
2755 /* Error while printing. */
2757 return CF_PRINT_WRITE_ERROR;
2760 write_carrays_finale(fh);
2764 return CF_PRINT_WRITE_ERROR;
2772 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2773 search_direction dir)
2777 mdata.string = string;
2778 mdata.string_len = strlen(string);
2779 return find_packet(cf, match_protocol_tree, &mdata, dir);
2783 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2785 mdata->frame_matched = FALSE;
2786 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2787 mdata->string_len = strlen(mdata->string);
2789 /* Iterate through all the nodes looking for matching text */
2790 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2791 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2795 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2797 match_data *mdata = criterion;
2800 /* Load the frame's data. */
2801 if (!cf_read_frame(cf, fdata)) {
2802 /* Attempt to get the packet failed. */
2806 /* Construct the protocol tree, including the displayed text */
2807 epan_dissect_init(&edt, TRUE, TRUE);
2808 /* We don't need the column information */
2809 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2811 /* Iterate through all the nodes, seeing if they have text that matches. */
2813 mdata->frame_matched = FALSE;
2814 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2815 epan_dissect_cleanup(&edt);
2816 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2820 match_subtree_text(proto_node *node, gpointer data)
2822 match_data *mdata = (match_data*) data;
2823 const gchar *string = mdata->string;
2824 size_t string_len = mdata->string_len;
2825 capture_file *cf = mdata->cf;
2826 field_info *fi = PNODE_FINFO(node);
2827 gchar label_str[ITEM_LABEL_LENGTH];
2834 g_assert(fi && "dissection with an invisible proto tree?");
2836 if (mdata->frame_matched) {
2837 /* We already had a match; don't bother doing any more work. */
2841 /* Don't match invisible entries. */
2842 if (PROTO_ITEM_IS_HIDDEN(node))
2845 /* was a free format label produced? */
2847 label_ptr = fi->rep->representation;
2849 /* no, make a generic label */
2850 label_ptr = label_str;
2851 proto_item_fill_label(fi, label_str);
2854 /* Does that label match? */
2855 label_len = strlen(label_ptr);
2856 for (i = 0; i < label_len; i++) {
2857 c_char = label_ptr[i];
2859 c_char = toupper(c_char);
2860 if (c_char == string[c_match]) {
2862 if (c_match == string_len) {
2863 /* No need to look further; we have a match */
2864 mdata->frame_matched = TRUE;
2872 /* Recurse into the subtree, if it exists */
2873 if (node->first_child != NULL)
2874 proto_tree_children_foreach(node, match_subtree_text, mdata);
2878 cf_find_packet_summary_line(capture_file *cf, const char *string,
2879 search_direction dir)
2883 mdata.string = string;
2884 mdata.string_len = strlen(string);
2885 return find_packet(cf, match_summary_line, &mdata, dir);
2889 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2891 match_data *mdata = criterion;
2892 const gchar *string = mdata->string;
2893 size_t string_len = mdata->string_len;
2895 const char *info_column;
2896 size_t info_column_len;
2897 match_result result = MR_NOTMATCHED;
2903 /* Load the frame's data. */
2904 if (!cf_read_frame(cf, fdata)) {
2905 /* Attempt to get the packet failed. */
2909 /* Don't bother constructing the protocol tree */
2910 epan_dissect_init(&edt, FALSE, FALSE);
2911 /* Get the column information */
2912 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2914 /* Find the Info column */
2915 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2916 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2917 /* Found it. See if we match. */
2918 info_column = edt.pi.cinfo->col_data[colx];
2919 info_column_len = strlen(info_column);
2920 for (i = 0; i < info_column_len; i++) {
2921 c_char = info_column[i];
2923 c_char = toupper(c_char);
2924 if (c_char == string[c_match]) {
2926 if (c_match == string_len) {
2927 result = MR_MATCHED;
2936 epan_dissect_cleanup(&edt);
2943 } cbs_t; /* "Counted byte string" */
2946 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2947 search_direction dir)
2952 info.data_len = string_size;
2954 /* String or hex search? */
2956 /* String search - what type of string? */
2957 switch (cf->scs_type) {
2959 case SCS_ASCII_AND_UNICODE:
2960 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2963 return find_packet(cf, match_ascii, &info, dir);
2966 return find_packet(cf, match_unicode, &info, dir);
2969 g_assert_not_reached();
2973 return find_packet(cf, match_binary, &info, dir);
2977 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2979 cbs_t *info = criterion;
2980 const guint8 *ascii_text = info->data;
2981 size_t textlen = info->data_len;
2982 match_result result;
2988 /* Load the frame's data. */
2989 if (!cf_read_frame(cf, fdata)) {
2990 /* Attempt to get the packet failed. */
2994 result = MR_NOTMATCHED;
2995 buf_len = fdata->pkt_len;
2997 while (i < buf_len) {
3000 c_char = toupper(c_char);
3001 if (c_char != '\0') {
3002 if (c_char == ascii_text[c_match]) {
3004 if (c_match == textlen) {
3005 result = MR_MATCHED;
3006 cf->search_pos = i; /* Save the position of the last character
3007 for highlighting the field. */
3012 g_assert(i>=c_match);
3013 i -= (guint32)c_match;
3023 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3025 cbs_t *info = criterion;
3026 const guint8 *ascii_text = info->data;
3027 size_t textlen = info->data_len;
3028 match_result result;
3034 /* Load the frame's data. */
3035 if (!cf_read_frame(cf, fdata)) {
3036 /* Attempt to get the packet failed. */
3040 result = MR_NOTMATCHED;
3041 buf_len = fdata->pkt_len;
3043 while (i < buf_len) {
3046 c_char = toupper(c_char);
3047 if (c_char == ascii_text[c_match]) {
3049 if (c_match == textlen) {
3050 result = MR_MATCHED;
3051 cf->search_pos = i; /* Save the position of the last character
3052 for highlighting the field. */
3057 g_assert(i>=c_match);
3058 i -= (guint32)c_match;
3068 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3070 cbs_t *info = criterion;
3071 const guint8 *ascii_text = info->data;
3072 size_t textlen = info->data_len;
3073 match_result result;
3079 /* Load the frame's data. */
3080 if (!cf_read_frame(cf, fdata)) {
3081 /* Attempt to get the packet failed. */
3085 result = MR_NOTMATCHED;
3086 buf_len = fdata->pkt_len;
3088 while (i < buf_len) {
3091 c_char = toupper(c_char);
3092 if (c_char == ascii_text[c_match]) {
3094 if (c_match == textlen) {
3095 result = MR_MATCHED;
3096 cf->search_pos = i; /* Save the position of the last character
3097 for highlighting the field. */
3103 g_assert(i>=(c_match*2));
3104 i -= (guint32)c_match*2;
3113 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3115 cbs_t *info = criterion;
3116 const guint8 *binary_data = info->data;
3117 size_t datalen = info->data_len;
3118 match_result result;
3123 /* Load the frame's data. */
3124 if (!cf_read_frame(cf, fdata)) {
3125 /* Attempt to get the packet failed. */
3129 result = MR_NOTMATCHED;
3130 buf_len = fdata->pkt_len;
3132 while (i < buf_len) {
3133 if (cf->pd[i] == binary_data[c_match]) {
3135 if (c_match == datalen) {
3136 result = MR_MATCHED;
3137 cf->search_pos = i; /* Save the position of the last character
3138 for highlighting the field. */
3143 g_assert(i>=c_match);
3144 i -= (guint32)c_match;
3153 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3154 search_direction dir)
3156 return find_packet(cf, match_dfilter, sfcode, dir);
3160 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3161 search_direction dir)
3166 if (!dfilter_compile(filter, &sfcode)) {
3168 * XXX - this shouldn't happen, as the filter string is machine
3173 if (sfcode == NULL) {
3175 * XXX - this shouldn't happen, as the filter string is machine
3180 result = find_packet(cf, match_dfilter, sfcode, dir);
3181 dfilter_free(sfcode);
3186 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3188 dfilter_t *sfcode = criterion;
3190 match_result result;
3192 /* Load the frame's data. */
3193 if (!cf_read_frame(cf, fdata)) {
3194 /* Attempt to get the packet failed. */
3198 epan_dissect_init(&edt, TRUE, FALSE);
3199 epan_dissect_prime_dfilter(&edt, sfcode);
3200 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3201 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3202 epan_dissect_cleanup(&edt);
3207 cf_find_packet_marked(capture_file *cf, search_direction dir)
3209 return find_packet(cf, match_marked, NULL, dir);
3213 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3215 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3219 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3221 return find_packet(cf, match_time_reference, NULL, dir);
3225 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3227 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3231 find_packet(capture_file *cf,
3232 match_result (*match_function)(capture_file *, frame_data *, void *),
3233 void *criterion, search_direction dir)
3235 frame_data *start_fd;
3238 frame_data *new_fd = NULL;
3239 progdlg_t *progbar = NULL;
3244 GTimeVal start_time;
3245 gchar status_str[100];
3246 int progbar_nextstep;
3247 int progbar_quantum;
3249 match_result result;
3251 start_fd = cf->current_frame;
3252 if (start_fd != NULL) {
3253 /* Iterate through the list of packets, starting at the packet we've
3254 picked, calling a routine to run the filter on the packet, see if
3255 it matches, and stop if so. */
3257 framenum = start_fd->num;
3259 /* Update the progress bar when it gets to this value. */
3260 progbar_nextstep = 0;
3261 /* When we reach the value that triggers a progress bar update,
3262 bump that value by this amount. */
3263 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3264 /* Progress so far. */
3268 g_get_current_time(&start_time);
3270 title = cf->sfilter?cf->sfilter:"";
3272 /* Create the progress bar if necessary.
3273 We check on every iteration of the loop, so that it takes no
3274 longer than the standard time to create it (otherwise, for a
3275 large file, we might take considerably longer than that standard
3276 time in order to get to the next progress bar step). */
3277 if (progbar == NULL)
3278 progbar = delayed_create_progress_dlg("Searching", title,
3279 FALSE, &stop_flag, &start_time, progbar_val);
3281 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3282 when we update it, we have to run the GTK+ main loop to get it
3283 to repaint what's pending, and doing so may involve an "ioctl()"
3284 to see if there's any pending input from an X server, and doing
3285 that for every packet can be costly, especially on a big file. */
3286 if (count >= progbar_nextstep) {
3287 /* let's not divide by zero. I should never be started
3288 * with count == 0, so let's assert that
3290 g_assert(cf->count > 0);
3292 progbar_val = (gfloat) count / cf->count;
3294 if (progbar != NULL) {
3295 g_snprintf(status_str, sizeof(status_str),
3296 "%4u of %u packets", count, cf->count);
3297 update_progress_dlg(progbar, progbar_val, status_str);
3300 progbar_nextstep += progbar_quantum;
3304 /* Well, the user decided to abort the search. Go back to the
3305 frame where we started. */
3310 /* Go past the current frame. */
3311 if (dir == SD_BACKWARD) {
3312 /* Go on to the previous frame. */
3313 if (framenum == 1) {
3315 * XXX - other apps have a bit more of a detailed message
3316 * for this, and instead of offering "OK" and "Cancel",
3317 * they offer things such as "Continue" and "Cancel";
3318 * we need an API for popping up alert boxes with
3319 * {Verb} and "Cancel".
3322 if (prefs.gui_find_wrap)
3324 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3325 framenum = cf->count; /* wrap around */
3329 statusbar_push_temporary_msg("Search reached the beginning.");
3330 framenum = start_fd->num; /* stay on previous packet */
3335 /* Go on to the next frame. */
3336 if (framenum == cf->count) {
3337 if (prefs.gui_find_wrap)
3339 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3340 framenum = 1; /* wrap around */
3344 statusbar_push_temporary_msg("Search reached the end.");
3345 framenum = start_fd->num; /* stay on previous packet */
3350 fdata = frame_data_sequence_find(cf->frames, framenum);
3354 /* Is this packet in the display? */
3355 if (fdata->flags.passed_dfilter) {
3356 /* Yes. Does it match the search criterion? */
3357 result = (*match_function)(cf, fdata, criterion);
3358 if (result == MR_ERROR) {
3359 /* Error; our caller has reported the error. Go back to the frame
3360 where we started. */
3363 } else if (result == MR_MATCHED) {
3364 /* Yes. Go to the new frame. */
3370 if (fdata == start_fd) {
3371 /* We're back to the frame we were on originally, and that frame
3372 doesn't match the search filter. The search failed. */
3377 /* We're done scanning the packets; destroy the progress bar if it
3379 if (progbar != NULL)
3380 destroy_progress_dlg(progbar);
3383 if (new_fd != NULL) {
3384 /* Find and select */
3385 cf->search_in_progress = TRUE;
3386 found = new_packet_list_select_row_from_data(new_fd);
3387 cf->search_in_progress = FALSE;
3388 cf->search_pos = 0; /* Reset the position */
3390 /* We didn't find a row corresponding to this frame.
3391 This means that the frame isn't being displayed currently,
3392 so we can't select it. */
3393 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3394 "%sEnd of capture exceeded!%s\n\n"
3395 "The capture file is probably not fully dissected.",
3396 simple_dialog_primary_start(), simple_dialog_primary_end());
3399 return TRUE; /* success */
3401 return FALSE; /* failure */
3405 cf_goto_frame(capture_file *cf, guint fnumber)
3409 fdata = frame_data_sequence_find(cf->frames, fnumber);
3411 if (fdata == NULL) {
3412 /* we didn't find a packet with that packet number */
3413 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3414 return FALSE; /* we failed to go to that packet */
3416 if (!fdata->flags.passed_dfilter) {
3417 /* that packet currently isn't displayed */
3418 /* XXX - add it to the set of displayed packets? */
3419 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3420 return FALSE; /* we failed to go to that packet */
3423 if (!new_packet_list_select_row_from_data(fdata)) {
3424 /* We didn't find a row corresponding to this frame.
3425 This means that the frame isn't being displayed currently,
3426 so we can't select it. */
3427 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3428 "%sEnd of capture exceeded!%s\n\n"
3429 "The capture file is probably not fully dissected.",
3430 simple_dialog_primary_start(), simple_dialog_primary_end());
3433 return TRUE; /* we got to that packet */
3437 cf_goto_top_frame(void)
3439 /* Find and select */
3440 new_packet_list_select_first_row();
3441 return TRUE; /* we got to that packet */
3445 cf_goto_bottom_frame(void)
3447 /* Find and select */
3448 new_packet_list_select_last_row();
3449 return TRUE; /* we got to that packet */
3453 * Go to frame specified by currently selected protocol tree item.
3456 cf_goto_framenum(capture_file *cf)
3458 header_field_info *hfinfo;
3461 if (cf->finfo_selected) {
3462 hfinfo = cf->finfo_selected->hfinfo;
3464 if (hfinfo->type == FT_FRAMENUM) {
3465 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3467 return cf_goto_frame(cf, framenum);
3474 /* Select the packet on a given row. */
3476 cf_select_packet(capture_file *cf, int row)
3480 /* Get the frame data struct pointer for this frame */
3481 fdata = new_packet_list_get_row_data(row);
3483 if (fdata == NULL) {
3484 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3485 the first entry is added to it by "real_insert_row()", that row
3486 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3487 our version and the vanilla GTK+ version).
3489 This means that a "select-row" signal is emitted; this causes
3490 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3493 "cf_select_packet()" fetches, above, the data associated with the
3494 row that was selected; however, as "gtk_clist_append()", which
3495 called "real_insert_row()", hasn't yet returned, we haven't yet
3496 associated any data with that row, so we get back a null pointer.
3498 We can't assume that there's only one frame in the frame list,
3499 either, as we may be filtering the display.
3501 We therefore assume that, if "row" is 0, i.e. the first row
3502 is being selected, and "cf->first_displayed" equals
3503 "cf->last_displayed", i.e. there's only one frame being
3504 displayed, that frame is the frame we want.
3506 This means we have to set "cf->first_displayed" and
3507 "cf->last_displayed" before adding the row to the
3508 GtkCList; see the comment in "add_packet_to_packet_list()". */
3510 if (row == 0 && cf->first_displayed == cf->last_displayed)
3511 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3514 /* If fdata _still_ isn't set simply give up. */
3515 if (fdata == NULL) {
3519 /* Get the data in that frame. */
3520 if (!cf_read_frame (cf, fdata)) {
3524 /* Record that this frame is the current frame. */
3525 cf->current_frame = fdata;
3526 cf->current_row = row;
3528 /* Create the logical protocol tree. */
3529 if (cf->edt != NULL)
3530 epan_dissect_free(cf->edt);
3532 /* We don't need the columns here. */
3533 cf->edt = epan_dissect_new(TRUE, TRUE);
3535 tap_build_interesting(cf->edt);
3536 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3539 dfilter_macro_build_ftv_cache(cf->edt->tree);
3541 cf_callback_invoke(cf_cb_packet_selected, cf);
3544 /* Unselect the selected packet, if any. */
3546 cf_unselect_packet(capture_file *cf)
3548 /* Destroy the epan_dissect_t for the unselected packet. */
3549 if (cf->edt != NULL) {
3550 epan_dissect_free(cf->edt);
3554 /* No packet is selected. */
3555 cf->current_frame = NULL;
3556 cf->current_row = 0;
3558 cf_callback_invoke(cf_cb_packet_unselected, cf);
3560 /* No protocol tree means no selected field. */
3561 cf_unselect_field(cf);
3564 /* Unset the selected protocol tree field, if any. */
3566 cf_unselect_field(capture_file *cf)
3568 cf->finfo_selected = NULL;
3570 cf_callback_invoke(cf_cb_field_unselected, cf);
3574 * Mark a particular frame.
3577 cf_mark_frame(capture_file *cf, frame_data *frame)
3579 if (! frame->flags.marked) {
3580 frame->flags.marked = TRUE;
3581 if (cf->count > cf->marked_count)
3587 * Unmark a particular frame.
3590 cf_unmark_frame(capture_file *cf, frame_data *frame)
3592 if (frame->flags.marked) {
3593 frame->flags.marked = FALSE;
3594 if (cf->marked_count > 0)
3600 * Ignore a particular frame.
3603 cf_ignore_frame(capture_file *cf, frame_data *frame)
3605 if (! frame->flags.ignored) {
3606 frame->flags.ignored = TRUE;
3607 if (cf->count > cf->ignored_count)
3608 cf->ignored_count++;
3613 * Un-ignore a particular frame.
3616 cf_unignore_frame(capture_file *cf, frame_data *frame)
3618 if (frame->flags.ignored) {
3619 frame->flags.ignored = FALSE;
3620 if (cf->ignored_count > 0)
3621 cf->ignored_count--;
3629 } save_callback_args_t;
3632 * Save a capture to a file, in a particular format, saving either
3633 * all packets, all currently-displayed packets, or all marked packets.
3635 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3636 * up a message box for the failure.
3639 save_packet(capture_file *cf _U_, frame_data *fdata,
3640 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3643 save_callback_args_t *args = argsp;
3644 struct wtap_pkthdr hdr;
3647 /* init the wtap header for saving */
3648 hdr.ts.secs = fdata->abs_ts.secs;
3649 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3650 hdr.caplen = fdata->cap_len;
3651 hdr.len = fdata->pkt_len;
3652 hdr.pkt_encap = fdata->lnk_t;
3654 /* and save the packet */
3655 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3657 /* Wiretap error. */
3660 case WTAP_ERR_UNSUPPORTED_ENCAP:
3662 * This is a problem with the particular frame we're writing;
3663 * note that, and give the frame number.
3665 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3666 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3667 fdata->num, wtap_file_type_string(args->file_type));
3671 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3672 "An error occurred while writing to the file \"%s\": %s.",
3673 args->fname, wtap_strerror(err));
3678 write_failure_alert_box(args->fname, err);
3686 * Can this capture file be saved in any format except by copying the raw data?
3689 cf_can_save_as(capture_file *cf)
3693 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3694 /* To save a file with Wiretap, Wiretap has to handle that format,
3695 and its code to handle that format must be able to write a file
3696 with this file's encapsulation type. */
3697 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3698 /* OK, we can write it out in this type. */
3703 /* No, we couldn't save it in any format. */
3708 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3710 gchar *from_filename;
3714 save_callback_args_t callback_args;
3716 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3718 /* don't write over an existing file. */
3719 /* this should've been already checked by our caller, just to be sure... */
3720 if (file_exists(fname)) {
3721 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3722 "%sCapture file: \"%s\" already exists!%s\n\n"
3723 "Please choose a different filename.",
3724 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3728 packet_range_process_init(range);
3730 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3731 /* We're not filtering packets, and we're saving it in the format
3732 it's already in, so we can just move or copy the raw data. */
3734 if (cf->is_tempfile) {
3735 /* The file being saved is a temporary file from a live
3736 capture, so it doesn't need to stay around under that name;
3737 first, try renaming the capture buffer file to the new name. */
3739 if (ws_rename(cf->filename, fname) == 0) {
3740 /* That succeeded - there's no need to copy the source file. */
3741 from_filename = NULL;
3744 if (errno == EXDEV) {
3745 /* They're on different file systems, so we have to copy the
3748 from_filename = cf->filename;
3750 /* The rename failed, but not because they're on different
3751 file systems - put up an error message. (Or should we
3752 just punt and try to copy? The only reason why I'd
3753 expect the rename to fail and the copy to succeed would
3754 be if we didn't have permission to remove the file from
3755 the temporary directory, and that might be fixable - but
3756 is it worth requiring the user to go off and fix it?) */
3757 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3758 file_rename_error_message(errno), fname);
3764 from_filename = cf->filename;
3767 /* It's a permanent file, so we should copy it, and not remove the
3770 from_filename = cf->filename;
3774 /* Copy the file, if we haven't moved it. */
3775 if (!copy_file_binary_mode(from_filename, fname))
3779 /* Either we're filtering packets, or we're saving in a different
3780 format; we can't do that by copying or moving the capture file,
3781 we have to do it by writing the packets out in Wiretap. */
3782 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3785 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3789 /* XXX - we let the user save a subset of the packets.
3791 If we do that, should we make that file the current file? If so,
3792 it means we can no longer get at the other packets. What does
3795 /* Iterate through the list of packets, processing the packets we were
3798 XXX - we've already called "packet_range_process_init(range)", but
3799 "process_specified_packets()" will do it again. Fortunately,
3800 that's harmless in this case, as we haven't done anything to
3801 "range" since we initialized it. */
3802 callback_args.pdh = pdh;
3803 callback_args.fname = fname;
3804 callback_args.file_type = save_format;
3805 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3806 TRUE, save_packet, &callback_args)) {
3809 /* Completed successfully. */
3813 /* The user decided to abort the saving.
3814 XXX - remove the output file? */
3818 /* Error while saving. */
3819 wtap_dump_close(pdh, &err);
3823 if (!wtap_dump_close(pdh, &err)) {
3824 cf_close_failure_alert_box(fname, err);
3829 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3831 if (packet_range_process_all(range)) {
3832 /* We saved the entire capture, not just some packets from it.
3833 Open and read the file we saved it to.
3835 XXX - this is somewhat of a waste; we already have the
3836 packets, all this gets us is updated file type information
3837 (which we could just stuff into "cf"), and having the new
3838 file be the one we have opened and from which we're reading
3839 the data, and it means we have to spend time opening and
3840 reading the file, which could be a significant amount of
3841 time if the file is large. */
3842 cf->user_saved = TRUE;
3844 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3845 /* XXX - report errors if this fails?
3846 What should we return if it fails or is aborted? */
3848 switch (cf_read(cf, TRUE)) {
3852 /* Just because we got an error, that doesn't mean we were unable
3853 to read any of the file; we handle what we could get from the
3857 case CF_READ_ABORTED:
3858 /* The user bailed out of re-reading the capture file; the
3859 capture file has been closed - just return (without
3860 changing any menu settings; "cf_close()" set them
3861 correctly for the "no capture file open" state). */
3864 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3870 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3875 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3876 gboolean for_writing, int file_type)
3879 /* Wiretap error. */
3882 case WTAP_ERR_NOT_REGULAR_FILE:
3883 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3884 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3888 case WTAP_ERR_RANDOM_OPEN_PIPE:
3889 /* Seen only when opening a capture file for reading. */
3890 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3891 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3895 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3896 /* Seen only when opening a capture file for reading. */
3897 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3898 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3902 case WTAP_ERR_UNSUPPORTED:
3903 /* Seen only when opening a capture file for reading. */
3904 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3905 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3907 filename, err_info);
3911 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3912 /* Seen only when opening a capture file for writing. */
3913 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3914 "The file \"%s\" is a pipe, and %s capture files can't be "
3915 "written to a pipe.",
3916 filename, wtap_file_type_string(file_type));
3919 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3920 /* Seen only when opening a capture file for writing. */
3921 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3922 "Wireshark doesn't support writing capture files in that format.");
3925 case WTAP_ERR_UNSUPPORTED_ENCAP:
3927 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3928 "Wireshark can't save this capture in that format.");
3930 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3931 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3933 filename, err_info);
3938 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3940 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3941 "Wireshark can't save this capture in that format.");
3943 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3944 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3949 case WTAP_ERR_BAD_FILE:
3950 /* Seen only when opening a capture file for reading. */
3951 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3952 "The file \"%s\" appears to be damaged or corrupt.\n"
3954 filename, err_info);
3958 case WTAP_ERR_CANT_OPEN:
3960 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3961 "The file \"%s\" could not be created for some unknown reason.",
3964 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3965 "The file \"%s\" could not be opened for some unknown reason.",
3970 case WTAP_ERR_SHORT_READ:
3971 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3972 "The file \"%s\" appears to have been cut short"
3973 " in the middle of a packet or other data.",
3977 case WTAP_ERR_SHORT_WRITE:
3978 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3979 "A full header couldn't be written to the file \"%s\".",
3983 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3984 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3985 "Gzip compression not supported by this file type.");
3988 case WTAP_ERR_DECOMPRESS:
3989 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3990 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
3991 "(%s)", filename, err_info);
3996 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3997 "The file \"%s\" could not be %s: %s.",
3999 for_writing ? "created" : "opened",
4000 wtap_strerror(err));
4005 open_failure_alert_box(filename, err, for_writing);
4010 file_rename_error_message(int err)
4013 static char errmsg_errno[1024+1];
4018 errmsg = "The path to the file \"%s\" doesn't exist.";
4022 errmsg = "You don't have permission to move the capture file to \"%s\".";
4026 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4027 "The file \"%%s\" could not be moved: %s.",
4028 wtap_strerror(err));
4029 errmsg = errmsg_errno;
4035 /* Check for write errors - if the file is being written to an NFS server,
4036 a write error may not show up until the file is closed, as NFS clients
4037 might not send writes to the server until the "write()" call finishes,
4038 so that the write may fail on the server but the "write()" may succeed. */
4040 cf_close_failure_alert_box(const char *filename, int err)
4043 /* Wiretap error. */
4046 case WTAP_ERR_CANT_CLOSE:
4047 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4048 "The file \"%s\" couldn't be closed for some unknown reason.",
4052 case WTAP_ERR_SHORT_WRITE:
4053 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4054 "Not all the packets could be written to the file \"%s\".",
4059 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4060 "An error occurred while closing the file \"%s\": %s.",
4061 filename, wtap_strerror(err));
4066 We assume that a close error from the OS is really a write error. */
4067 write_failure_alert_box(filename, err);
4071 /* Reload the current capture file. */
4073 cf_reload(capture_file *cf) {
4075 gboolean is_tempfile;
4078 /* If the file could be opened, "cf_open()" calls "cf_close()"
4079 to get rid of state for the old capture file before filling in state
4080 for the new capture file. "cf_close()" will remove the file if
4081 it's a temporary file; we don't want that to happen (for one thing,
4082 it'd prevent subsequent reopens from working). Remember whether it's
4083 a temporary file, mark it as not being a temporary file, and then
4084 reopen it as the type of file it was.
4086 Also, "cf_close()" will free "cf->filename", so we must make
4087 a copy of it first. */
4088 filename = g_strdup(cf->filename);
4089 is_tempfile = cf->is_tempfile;
4090 cf->is_tempfile = FALSE;
4091 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4092 switch (cf_read(cf, FALSE)) {
4096 /* Just because we got an error, that doesn't mean we were unable
4097 to read any of the file; we handle what we could get from the
4101 case CF_READ_ABORTED:
4102 /* The user bailed out of re-reading the capture file; the
4103 capture file has been closed - just free the capture file name
4104 string and return (without changing the last containing
4110 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4111 Instead, the file was left open, so we should restore "cf->is_tempfile"
4114 XXX - change the menu? Presumably "cf_open()" will do that;
4115 make sure it does! */
4116 cf->is_tempfile = is_tempfile;
4118 /* "cf_open()" made a copy of the file name we handed it, so
4119 we should free up our copy. */
4129 * indent-tabs-mode: nil
4132 * ex: set shiftwidth=2 tabstop=8 expandtab:
4133 * :indentSize=2:tabSize=8:noTabs=true: