6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
61 #include "alert_box.h"
62 #include "simple_dialog.h"
63 #include "main_statusbar.h"
64 #include "progress_dlg.h"
66 #include <epan/prefs.h>
67 #include <epan/dfilter/dfilter.h>
68 #include <epan/epan_dissect.h>
70 #include <epan/dissectors/packet-data.h>
71 #include <epan/dissectors/packet-ber.h>
72 #include <epan/timestamp.h>
73 #include <epan/dfilter/dfilter-macro.h>
74 #include <wsutil/file_util.h>
75 #include <epan/strutil.h>
76 #include <epan/addr_resolv.h>
79 gboolean auto_scroll_live;
82 static guint32 cum_bytes;
83 static nstime_t first_ts;
84 static nstime_t prev_dis_ts;
85 static nstime_t prev_cap_ts;
87 static gulong computed_elapsed;
89 static void cf_reset_state(capture_file *cf);
91 static int read_packet(capture_file *cf, dfilter_t *dfcode,
92 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
94 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
95 gboolean refilter, gboolean redissect);
102 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
104 static void match_subtree_text(proto_node *node, gpointer data);
105 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
107 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii(capture_file *cf, frame_data *fdata,
111 static match_result match_unicode(capture_file *cf, frame_data *fdata,
113 static match_result match_binary(capture_file *cf, frame_data *fdata,
115 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
117 static match_result match_marked(capture_file *cf, frame_data *fdata,
119 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
121 static gboolean find_packet(capture_file *cf,
122 match_result (*match_function)(capture_file *, frame_data *, void *),
123 void *criterion, search_direction dir);
125 static void cf_open_failure_alert_box(const char *filename, int err,
126 gchar *err_info, gboolean for_writing,
128 static const char *file_rename_error_message(int err);
129 static void cf_close_failure_alert_box(const char *filename, int err);
130 static void ref_time_packets(capture_file *cf);
131 /* Update the progress bar this many times when reading a file. */
132 #define N_PROGBAR_UPDATES 100
133 /* We read around 200k/100ms don't update the progress bar more often than that */
134 #define MIN_QUANTUM 200000
135 #define MIN_NUMBER_OF_PACKET 1500
137 /* Number of "frame_data" structures per memory chunk.
138 XXX - is this the right number? */
139 #define FRAME_DATA_CHUNK_SIZE 1024
143 * We could probably use g_signal_...() instead of the callbacks below but that
144 * would require linking our CLI programs to libgobject and creating an object
145 * instance for the signals.
148 cf_callback_t cb_fct;
150 } cf_callback_data_t;
152 static GList *cf_callbacks = NULL;
155 cf_callback_invoke(int event, gpointer data)
157 cf_callback_data_t *cb;
158 GList *cb_item = cf_callbacks;
160 /* there should be at least one interested */
161 g_assert(cb_item != NULL);
163 while(cb_item != NULL) {
165 cb->cb_fct(event, data, cb->user_data);
166 cb_item = g_list_next(cb_item);
172 cf_callback_add(cf_callback_t func, gpointer user_data)
174 cf_callback_data_t *cb;
176 cb = g_malloc(sizeof(cf_callback_data_t));
178 cb->user_data = user_data;
180 cf_callbacks = g_list_append(cf_callbacks, cb);
184 cf_callback_remove(cf_callback_t func)
186 cf_callback_data_t *cb;
187 GList *cb_item = cf_callbacks;
189 while(cb_item != NULL) {
191 if(cb->cb_fct == func) {
192 cf_callbacks = g_list_remove(cf_callbacks, cb);
196 cb_item = g_list_next(cb_item);
199 g_assert_not_reached();
203 cf_timestamp_auto_precision(capture_file *cf)
206 int prec = timestamp_get_precision();
209 /* don't try to get the file's precision if none is opened */
210 if(cf->state == FILE_CLOSED) {
214 /* if we are in auto mode, set precision of current file */
215 if(prec == TS_PREC_AUTO ||
216 prec == TS_PREC_AUTO_SEC ||
217 prec == TS_PREC_AUTO_DSEC ||
218 prec == TS_PREC_AUTO_CSEC ||
219 prec == TS_PREC_AUTO_MSEC ||
220 prec == TS_PREC_AUTO_USEC ||
221 prec == TS_PREC_AUTO_NSEC)
223 switch(wtap_file_tsprecision(cf->wth)) {
224 case(WTAP_FILE_TSPREC_SEC):
225 timestamp_set_precision(TS_PREC_AUTO_SEC);
227 case(WTAP_FILE_TSPREC_DSEC):
228 timestamp_set_precision(TS_PREC_AUTO_DSEC);
230 case(WTAP_FILE_TSPREC_CSEC):
231 timestamp_set_precision(TS_PREC_AUTO_CSEC);
233 case(WTAP_FILE_TSPREC_MSEC):
234 timestamp_set_precision(TS_PREC_AUTO_MSEC);
236 case(WTAP_FILE_TSPREC_USEC):
237 timestamp_set_precision(TS_PREC_AUTO_USEC);
239 case(WTAP_FILE_TSPREC_NSEC):
240 timestamp_set_precision(TS_PREC_AUTO_NSEC);
243 g_assert_not_reached();
246 /* Set the column widths of those columns that show the time in
247 "command-line-specified" format. */
248 for (i = 0; i < cf->cinfo.num_cols; i++) {
249 if (col_has_time_fmt(&cf->cinfo, i)) {
250 new_packet_list_resize_column(i);
256 cf_get_computed_elapsed(void)
258 return computed_elapsed;
261 static void reset_elapsed(void)
263 computed_elapsed = 0;
266 static void compute_elapsed(GTimeVal *start_time)
271 g_get_current_time(&time_now);
273 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
274 time_now.tv_usec - start_time->tv_usec;
276 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
280 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
285 wth = wtap_open_offline(fname, err, &err_info, TRUE);
289 /* The open succeeded. Close whatever capture file we had open,
290 and fill in the information for this file. */
293 /* Cleanup all data structures used for dissection. */
294 cleanup_dissection();
295 /* Initialize all data structures used for dissection. */
298 /* We're about to start reading the file. */
299 cf->state = FILE_READ_IN_PROGRESS;
304 /* Set the file name because we need it to set the follow stream filter.
305 XXX - is that still true? We need it for other reasons, though,
307 cf->filename = g_strdup(fname);
309 /* Indicate whether it's a permanent or temporary file. */
310 cf->is_tempfile = is_tempfile;
312 /* If it's a temporary capture buffer file, mark it as not saved. */
313 cf->user_saved = !is_tempfile;
317 cf->cd_t = wtap_file_type(cf->wth);
319 cf->displayed_count = 0;
320 cf->marked_count = 0;
321 cf->ignored_count = 0;
322 cf->ref_time_count = 0;
323 cf->drops_known = FALSE;
325 cf->snap = wtap_snapshot_length(cf->wth);
327 /* Snapshot length not known. */
328 cf->has_snap = FALSE;
329 cf->snap = WTAP_MAX_PACKET_SIZE;
333 /* Allocate a frame_data_sequence for the frames in this file */
334 cf->frames = new_frame_data_sequence();
336 nstime_set_zero(&cf->elapsed_time);
337 nstime_set_unset(&first_ts);
338 nstime_set_unset(&prev_dis_ts);
339 nstime_set_unset(&prev_cap_ts);
342 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
343 cf_timestamp_auto_precision(cf);
345 new_packet_list_queue_draw();
346 fileset_file_opened(fname);
348 if(cf->cd_t == WTAP_FILE_BER) {
349 /* tell the BER dissector the file name */
350 ber_set_filename(cf->filename);
353 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
354 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
359 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
365 * Reset the state for the currently closed file, but don't do the
366 * UI callbacks; this is for use in "cf_open()", where we don't
367 * want the UI to go from "file open" to "file closed" back to
368 * "file open", we want it to go from "old file open" to "new file
369 * open and being read".
372 cf_reset_state(capture_file *cf)
374 /* Die if we're in the middle of reading a file. */
375 g_assert(cf->state != FILE_READ_IN_PROGRESS);
381 /* We have no file open... */
382 if (cf->filename != NULL) {
383 /* If it's a temporary file, remove it. */
385 ws_unlink(cf->filename);
386 g_free(cf->filename);
389 /* ...which means we have nothing to save. */
390 cf->user_saved = FALSE;
392 dfilter_free(cf->rfcode);
394 if (cf->frames != NULL) {
395 free_frame_data_sequence(cf->frames);
398 #ifdef WANT_PACKET_EDITOR
399 if (cf->edited_frames) {
400 g_tree_destroy(cf->edited_frames);
401 cf->edited_frames = NULL;
404 cf_unselect_packet(cf); /* nothing to select */
405 cf->first_displayed = 0;
406 cf->last_displayed = 0;
408 /* No frames, no frame selected, no field in that frame selected. */
410 cf->current_frame = 0;
412 cf->finfo_selected = NULL;
414 /* Clear the packet list. */
415 new_packet_list_freeze();
416 new_packet_list_clear();
417 new_packet_list_thaw();
420 nstime_set_zero(&cf->elapsed_time);
422 reset_tap_listeners();
424 /* We have no file open. */
425 cf->state = FILE_CLOSED;
427 fileset_file_closed();
430 /* Reset everything to a pristine state */
432 cf_close(capture_file *cf)
434 /* do GUI things even if file is already closed,
435 * e.g. to cleanup things if a capture couldn't be started */
436 cf_callback_invoke(cf_cb_file_closing, cf);
438 /* close things, if not already closed before */
439 if(cf->state != FILE_CLOSED) {
440 color_filters_cleanup();
442 cleanup_dissection();
445 cf_callback_invoke(cf_cb_file_closed, cf);
448 /* an out of memory exception occured, wait for a user button press to exit */
449 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
455 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
459 progbar_val = (gfloat) file_pos / (gfloat) size;
460 if (progbar_val > 1.0) {
462 /* The file probably grew while we were reading it.
463 * Update file size, and try again.
465 size = wtap_file_size(cf->wth, NULL);
468 progbar_val = (gfloat) file_pos / (gfloat) size;
470 /* If it's still > 1, either "wtap_file_size()" failed (in which
471 * case there's not much we can do about it), or the file
472 * *shrank* (in which case there's not much we can do about
473 * it); just clip the progress value at 1.0.
475 if (progbar_val > 1.0f)
479 g_snprintf(status_str, status_size,
480 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
481 file_pos / 1024, size / 1024);
487 cf_read(capture_file *cf, gboolean from_save)
491 const gchar *name_ptr;
493 char errmsg_errno[1024+1];
496 progdlg_t *volatile progbar = NULL;
498 volatile gint64 size;
499 volatile float progbar_val;
501 gchar status_str[100];
502 volatile gint64 progbar_nextstep;
503 volatile gint64 progbar_quantum;
505 gboolean filtering_tap_listeners;
507 volatile int count = 0;
509 volatile int displayed_once = 0;
513 /* Compile the current display filter.
514 * We assume this will not fail since cf->dfilter is only set in
515 * cf_filter IFF the filter was valid.
517 compiled = dfilter_compile(cf->dfilter, &dfcode);
518 g_assert(!cf->dfilter || (compiled && dfcode));
520 /* Do we have any tap listeners with filters? */
521 filtering_tap_listeners = have_filtering_tap_listeners();
523 /* Get the union of the flags for all tap listeners. */
524 tap_flags = union_of_tap_listener_flags();
526 reset_tap_listeners();
528 name_ptr = get_basename(cf->filename);
530 if (from_save == FALSE)
531 cf_callback_invoke(cf_cb_file_read_started, cf);
533 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
535 /* Find the size of the file. */
536 size = wtap_file_size(cf->wth, NULL);
538 /* Update the progress bar when it gets to this value. */
539 progbar_nextstep = 0;
540 /* When we reach the value that triggers a progress bar update,
541 bump that value by this amount. */
543 progbar_quantum = size/N_PROGBAR_UPDATES;
544 if (progbar_quantum < MIN_QUANTUM)
545 progbar_quantum = MIN_QUANTUM;
548 /* Progress so far. */
551 /* The packet list window will be empty untill the file is completly loaded */
552 new_packet_list_freeze();
555 g_get_current_time(&start_time);
557 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
560 file_pos = wtap_read_so_far(cf->wth);
562 /* Create the progress bar if necessary.
563 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
565 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
566 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
567 if (from_save == FALSE)
568 progbar = delayed_create_progress_dlg("Loading", name_ptr,
569 TRUE, &stop_flag, &start_time, progbar_val);
571 progbar = delayed_create_progress_dlg("Saving", name_ptr,
572 TRUE, &stop_flag, &start_time, progbar_val);
575 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
576 when we update it, we have to run the GTK+ main loop to get it
577 to repaint what's pending, and doing so may involve an "ioctl()"
578 to see if there's any pending input from an X server, and doing
579 that for every packet can be costly, especially on a big file. */
580 if (file_pos >= progbar_nextstep) {
581 if (progbar != NULL) {
582 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
583 /* update the packet bar content on the first run or frequently on very large files */
585 if (progbar_quantum > 500000 || displayed_once == 0) {
586 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
588 packets_bar_update();
591 #endif /* HAVE_LIBPCAP */
592 update_progress_dlg(progbar, progbar_val, status_str);
594 progbar_nextstep += progbar_quantum;
599 /* Well, the user decided to abort the read. He/She will be warned and
600 it might be enough for him/her to work with the already loaded
602 This is especially true for very large capture files, where you don't
603 want to wait loading the whole file (which may last minutes or even
604 hours even on fast machines) just to see that it was the wrong file. */
608 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
610 CATCH(OutOfMemoryError) {
613 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
614 "%sOut Of Memory!%s\n"
616 "Sorry, but Wireshark has to terminate now!\n"
618 "Some infos / workarounds can be found at:\n"
619 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
620 simple_dialog_primary_start(), simple_dialog_primary_end());
621 /* we have to terminate, as we cannot recover from the memory error */
622 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
624 main_window_update();
625 /* XXX - how to avoid a busy wait? */
633 /* Cleanup and release all dfilter resources */
635 dfilter_free(dfcode);
638 /* We're done reading the file; destroy the progress bar if it was created. */
640 destroy_progress_dlg(progbar);
642 /* We're done reading sequentially through the file. */
643 cf->state = FILE_READ_DONE;
645 /* Close the sequential I/O side, to free up memory it requires. */
646 wtap_sequential_close(cf->wth);
648 /* Allow the protocol dissectors to free up memory that they
649 * don't need after the sequential run-through of the packets. */
650 postseq_cleanup_all_protocols();
652 /* compute the time it took to load the file */
653 compute_elapsed(&start_time);
655 /* Set the file encapsulation type now; we don't know what it is until
656 we've looked at all the packets, as we don't know until then whether
657 there's more than one type (and thus whether it's
658 WTAP_ENCAP_PER_PACKET). */
659 cf->lnk_t = wtap_file_encap(cf->wth);
661 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
664 new_packet_list_thaw();
665 if (from_save == FALSE)
666 cf_callback_invoke(cf_cb_file_read_finished, cf);
668 cf_callback_invoke(cf_cb_file_save_finished, cf);
670 /* If we have any displayed packets to select, select the first of those
671 packets by making the first row the selected row. */
672 if (cf->first_displayed != 0){
673 new_packet_list_select_first_row();
677 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
678 "%sFile loading was cancelled!%s\n"
680 "The remaining packets in the file were discarded.\n"
682 "As a lot of packets from the original file will be missing,\n"
683 "remember to be careful when saving the current content to a file.\n",
684 simple_dialog_primary_start(), simple_dialog_primary_end());
685 return CF_READ_ERROR;
689 /* Put up a message box noting that the read failed somewhere along
690 the line. Don't throw out the stuff we managed to read, though,
694 case WTAP_ERR_UNSUPPORTED_ENCAP:
695 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
696 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
699 errmsg = errmsg_errno;
702 case WTAP_ERR_CANT_READ:
703 errmsg = "An attempt to read from the capture file failed for"
704 " some unknown reason.";
707 case WTAP_ERR_SHORT_READ:
708 errmsg = "The capture file appears to have been cut short"
709 " in the middle of a packet.";
712 case WTAP_ERR_BAD_FILE:
713 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
714 "The capture file appears to be damaged or corrupt.\n(%s)",
717 errmsg = errmsg_errno;
720 case WTAP_ERR_DECOMPRESS:
721 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
722 "The compressed capture file appears to be damaged or corrupt.\n"
725 errmsg = errmsg_errno;
729 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
730 "An error occurred while reading the"
731 " capture file: %s.", wtap_strerror(err));
732 errmsg = errmsg_errno;
735 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
736 return CF_READ_ERROR;
743 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
745 cf_status_t cf_status;
747 cf_status = cf_open(cf, fname, is_tempfile, err);
752 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
754 gint64 data_offset = 0;
756 volatile int newly_displayed_packets = 0;
758 gboolean filtering_tap_listeners;
762 /* Compile the current display filter.
763 * We assume this will not fail since cf->dfilter is only set in
764 * cf_filter IFF the filter was valid.
766 compiled = dfilter_compile(cf->dfilter, &dfcode);
767 g_assert(!cf->dfilter || (compiled && dfcode));
769 /* Do we have any tap listeners with filters? */
770 filtering_tap_listeners = have_filtering_tap_listeners();
772 /* Get the union of the flags for all tap listeners. */
773 tap_flags = union_of_tap_listener_flags();
777 new_packet_list_check_end();
778 /* Don't freeze/thaw the list when doing live capture */
779 /*new_packet_list_freeze();*/
781 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
783 while (to_read != 0) {
784 wtap_cleareof(cf->wth);
785 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
788 if (cf->state == FILE_READ_ABORTED) {
789 /* Well, the user decided to exit Wireshark. Break out of the
790 loop, and let the code below (which is called even if there
791 aren't any packets left to read) exit. */
795 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
796 data_offset) != -1) {
797 newly_displayed_packets++;
800 CATCH(OutOfMemoryError) {
803 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
804 "%sOut Of Memory!%s\n"
806 "Sorry, but Wireshark has to terminate now!\n"
808 "The capture file is not lost, it can be found at:\n"
811 "Some infos / workarounds can be found at:\n"
812 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
813 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
814 /* we have to terminate, as we cannot recover from the memory error */
815 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
817 main_window_update();
818 /* XXX - how to avoid a busy wait? */
821 /* Don't freeze/thaw the list when doing live capture */
822 /*new_packet_list_thaw();*/
823 return CF_READ_ABORTED;
829 /* Cleanup and release all dfilter resources */
831 dfilter_free(dfcode);
834 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
835 cf->count, cf->state, *err);*/
837 /* Don't freeze/thaw the list when doing live capture */
838 /*new_packet_list_thaw();*/
839 /* With the new packet list the first packet
840 * isn't automatically selected.
842 if(!cf->current_frame)
843 new_packet_list_select_first_row();
845 /* moving to the end of the packet list - if the user requested so and
846 we have some new packets. */
847 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
848 new_packet_list_moveto_end();
850 if (cf->state == FILE_READ_ABORTED) {
851 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
852 so that our caller can kill off the capture child process;
853 this will cause an EOF on the pipe from the child, so
854 "cf_finish_tail()" will be called, and it will clean up
856 return CF_READ_ABORTED;
857 } else if (*err != 0) {
858 /* We got an error reading the capture file.
859 XXX - pop up a dialog box instead? */
860 g_warning("Error \"%s\" while reading: \"%s\"\n",
861 wtap_strerror(*err), cf->filename);
863 return CF_READ_ERROR;
869 cf_fake_continue_tail(capture_file *cf) {
870 cf->state = FILE_READ_DONE;
874 cf_finish_tail(capture_file *cf, int *err)
879 gboolean filtering_tap_listeners;
883 /* Compile the current display filter.
884 * We assume this will not fail since cf->dfilter is only set in
885 * cf_filter IFF the filter was valid.
887 compiled = dfilter_compile(cf->dfilter, &dfcode);
888 g_assert(!cf->dfilter || (compiled && dfcode));
890 /* Do we have any tap listeners with filters? */
891 filtering_tap_listeners = have_filtering_tap_listeners();
893 /* Get the union of the flags for all tap listeners. */
894 tap_flags = union_of_tap_listener_flags();
896 if(cf->wth == NULL) {
898 return CF_READ_ERROR;
901 new_packet_list_check_end();
902 /* Don't freeze/thaw the list when doing live capture */
903 /*new_packet_list_freeze();*/
905 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
906 if (cf->state == FILE_READ_ABORTED) {
907 /* Well, the user decided to abort the read. Break out of the
908 loop, and let the code below (which is called even if there
909 aren't any packets left to read) exit. */
912 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
915 /* Cleanup and release all dfilter resources */
917 dfilter_free(dfcode);
920 /* Don't freeze/thaw the list when doing live capture */
921 /*new_packet_list_thaw();*/
923 if (cf->state == FILE_READ_ABORTED) {
924 /* Well, the user decided to abort the read. We're only called
925 when the child capture process closes the pipe to us (meaning
926 it's probably exited), so we can just close the capture
927 file; we return CF_READ_ABORTED so our caller can do whatever
928 is appropriate when that happens. */
930 return CF_READ_ABORTED;
933 if (auto_scroll_live && cf->count != 0)
934 new_packet_list_moveto_end();
936 /* We're done reading sequentially through the file. */
937 cf->state = FILE_READ_DONE;
939 /* We're done reading sequentially through the file; close the
940 sequential I/O side, to free up memory it requires. */
941 wtap_sequential_close(cf->wth);
943 /* Allow the protocol dissectors to free up memory that they
944 * don't need after the sequential run-through of the packets. */
945 postseq_cleanup_all_protocols();
947 /* Set the file encapsulation type now; we don't know what it is until
948 we've looked at all the packets, as we don't know until then whether
949 there's more than one type (and thus whether it's
950 WTAP_ENCAP_PER_PACKET). */
951 cf->lnk_t = wtap_file_encap(cf->wth);
954 /* We got an error reading the capture file.
955 XXX - pop up a dialog box? */
956 return CF_READ_ERROR;
961 #endif /* HAVE_LIBPCAP */
964 cf_get_display_name(capture_file *cf)
966 const gchar *displayname;
968 /* Return a name to use in displays */
969 if (!cf->is_tempfile) {
970 /* Get the last component of the file name, and use that. */
972 displayname = get_basename(cf->filename);
974 displayname="(No file)";
977 /* The file we read is a temporary file from a live capture;
978 we don't mention its name. */
980 displayname = cf->source;
982 displayname = "(Untitled)";
988 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
994 cf->source = g_strdup(source);
996 cf->source = g_strdup("");
1000 const gchar *cf_get_tempfile_source(capture_file *cf) {
1008 /* XXX - use a macro instead? */
1010 cf_get_packet_count(capture_file *cf)
1015 /* XXX - use a macro instead? */
1017 cf_set_packet_count(capture_file *cf, int packet_count)
1019 cf->count = packet_count;
1022 /* XXX - use a macro instead? */
1024 cf_is_tempfile(capture_file *cf)
1026 return cf->is_tempfile;
1029 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1031 cf->is_tempfile = is_tempfile;
1035 /* XXX - use a macro instead? */
1036 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1038 cf->drops_known = drops_known;
1041 /* XXX - use a macro instead? */
1042 void cf_set_drops(capture_file *cf, guint32 drops)
1047 /* XXX - use a macro instead? */
1048 gboolean cf_get_drops_known(capture_file *cf)
1050 return cf->drops_known;
1053 /* XXX - use a macro instead? */
1054 guint32 cf_get_drops(capture_file *cf)
1059 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1061 cf->rfcode = rfcode;
1065 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1066 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1068 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1070 gboolean add_to_packet_list)
1072 gboolean create_proto_tree = FALSE;
1077 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1079 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1080 &first_ts, &prev_dis_ts, &prev_cap_ts);
1083 + we have a display filter and are re-applying it;
1084 + we have tap listeners with filters;
1085 + we have tap listeners that require a protocol tree;
1087 allocate a protocol tree root node, so that we'll construct
1088 a protocol tree against which a filter expression can be
1090 if ((dfcode != NULL && refilter) ||
1091 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1092 create_proto_tree = TRUE;
1094 /* Dissect the frame. */
1095 epan_dissect_init(&edt, create_proto_tree, FALSE);
1097 if (dfcode != NULL && refilter) {
1098 epan_dissect_prime_dfilter(&edt, dfcode);
1101 tap_queue_init(&edt);
1102 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1103 tap_push_tapped_queue(&edt);
1105 /* If we have a display filter, apply it if we're refiltering, otherwise
1106 leave the "passed_dfilter" flag alone.
1108 If we don't have a display filter, set "passed_dfilter" to 1. */
1109 if (dfcode != NULL) {
1111 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1114 fdata->flags.passed_dfilter = 1;
1116 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1117 cf->displayed_count++;
1119 if (add_to_packet_list) {
1120 /* We fill the needed columns from new_packet_list */
1121 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1124 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1126 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1128 /* If we haven't yet seen the first frame, this is it.
1130 XXX - we must do this before we add the row to the display,
1131 as, if the display's GtkCList's selection mode is
1132 GTK_SELECTION_BROWSE, when the first entry is added to it,
1133 "cf_select_packet()" will be called, and it will fetch the row
1134 data for the 0th row, and will get a null pointer rather than
1135 "fdata", as "gtk_clist_append()" won't yet have returned and
1136 thus "gtk_clist_set_row_data()" won't yet have been called.
1138 We thus need to leave behind bread crumbs so that
1139 "cf_select_packet()" can find this frame. See the comment
1140 in "cf_select_packet()". */
1141 if (cf->first_displayed == 0)
1142 cf->first_displayed = fdata->num;
1144 /* This is the last frame we've seen so far. */
1145 cf->last_displayed = fdata->num;
1148 epan_dissect_cleanup(&edt);
1152 /* read in a new packet */
1153 /* returns the row of the new packet in the packet list or -1 if not displayed */
1155 read_packet(capture_file *cf, dfilter_t *dfcode,
1156 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1158 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1159 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1160 const guchar *buf = wtap_buf_ptr(cf->wth);
1167 /* The frame number of this packet is one more than the count of
1168 frames in this packet. */
1169 framenum = cf->count + 1;
1171 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1176 epan_dissect_init(&edt, TRUE, FALSE);
1177 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1178 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1179 passed = dfilter_apply_edt(cf->rfcode, &edt);
1180 epan_dissect_cleanup(&edt);
1184 /* This does a shallow copy of fdlocal, which is good enough. */
1185 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1188 cf->f_datalen = offset + fdlocal.cap_len;
1190 if (!cf->redissecting) {
1191 row = add_packet_to_packet_list(fdata, cf, dfcode,
1192 filtering_tap_listeners, tap_flags,
1193 pseudo_header, buf, TRUE, TRUE);
1201 cf_merge_files(char **out_filenamep, int in_file_count,
1202 char *const *in_filenames, int file_type, gboolean do_append)
1204 merge_in_file_t *in_files, *in_file;
1209 int open_err, read_err, write_err, close_err;
1213 char errmsg_errno[1024+1];
1215 gboolean got_read_error = FALSE, got_write_error = FALSE;
1217 progdlg_t *progbar = NULL;
1219 gint64 f_len, file_pos;
1221 GTimeVal start_time;
1222 gchar status_str[100];
1223 gint64 progbar_nextstep;
1224 gint64 progbar_quantum;
1226 /* open the input files */
1227 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1228 &open_err, &err_info, &err_fileno)) {
1230 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1235 if (*out_filenamep != NULL) {
1236 out_filename = *out_filenamep;
1237 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1241 out_fd = create_tempfile(&tmpname, "wireshark");
1244 out_filename = g_strdup(tmpname);
1245 *out_filenamep = out_filename;
1249 merge_close_in_files(in_file_count, in_files);
1251 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1255 pdh = wtap_dump_fdopen(out_fd, file_type,
1256 merge_select_frame_type(in_file_count, in_files),
1257 merge_max_snapshot_length(in_file_count, in_files),
1258 FALSE /* compressed */, &open_err);
1261 merge_close_in_files(in_file_count, in_files);
1263 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1268 /* Get the sum of the sizes of all the files. */
1270 for (i = 0; i < in_file_count; i++)
1271 f_len += in_files[i].size;
1273 /* Update the progress bar when it gets to this value. */
1274 progbar_nextstep = 0;
1275 /* When we reach the value that triggers a progress bar update,
1276 bump that value by this amount. */
1277 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1278 /* Progress so far. */
1282 g_get_current_time(&start_time);
1284 /* do the merge (or append) */
1287 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1290 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1292 if (in_file == NULL) {
1297 if (read_err != 0) {
1298 /* I/O error reading from in_file */
1299 got_read_error = TRUE;
1303 /* Get the sum of the data offsets in all of the files. */
1305 for (i = 0; i < in_file_count; i++)
1306 data_offset += in_files[i].data_offset;
1308 /* Create the progress bar if necessary.
1309 We check on every iteration of the loop, so that it takes no
1310 longer than the standard time to create it (otherwise, for a
1311 large file, we might take considerably longer than that standard
1312 time in order to get to the next progress bar step). */
1313 if (progbar == NULL) {
1314 progbar = delayed_create_progress_dlg("Merging", "files",
1315 FALSE, &stop_flag, &start_time, progbar_val);
1318 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1319 when we update it, we have to run the GTK+ main loop to get it
1320 to repaint what's pending, and doing so may involve an "ioctl()"
1321 to see if there's any pending input from an X server, and doing
1322 that for every packet can be costly, especially on a big file. */
1323 if (data_offset >= progbar_nextstep) {
1324 /* Get the sum of the seek positions in all of the files. */
1326 for (i = 0; i < in_file_count; i++)
1327 file_pos += wtap_read_so_far(in_files[i].wth);
1328 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1329 if (progbar_val > 1.0f) {
1330 /* Some file probably grew while we were reading it.
1331 That "shouldn't happen", so we'll just clip the progress
1335 if (progbar != NULL) {
1336 g_snprintf(status_str, sizeof(status_str),
1337 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1338 file_pos / 1024, f_len / 1024);
1339 update_progress_dlg(progbar, progbar_val, status_str);
1341 progbar_nextstep += progbar_quantum;
1345 /* Well, the user decided to abort the merge. */
1349 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1350 wtap_buf_ptr(in_file->wth), &write_err)) {
1351 got_write_error = TRUE;
1356 /* We're done merging the files; destroy the progress bar if it was created. */
1357 if (progbar != NULL)
1358 destroy_progress_dlg(progbar);
1360 merge_close_in_files(in_file_count, in_files);
1361 if (!got_read_error && !got_write_error) {
1362 if (!wtap_dump_close(pdh, &write_err))
1363 got_write_error = TRUE;
1365 wtap_dump_close(pdh, &close_err);
1367 if (got_read_error) {
1369 * Find the file on which we got the error, and report the error.
1371 for (i = 0; i < in_file_count; i++) {
1372 if (in_files[i].state == GOT_ERROR) {
1373 /* Put up a message box noting that a read failed somewhere along
1377 case WTAP_ERR_UNSUPPORTED_ENCAP:
1378 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1379 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1382 errmsg = errmsg_errno;
1385 case WTAP_ERR_CANT_READ:
1386 errmsg = "An attempt to read from the capture file %s failed for"
1387 " some unknown reason.";
1390 case WTAP_ERR_SHORT_READ:
1391 errmsg = "The capture file %s appears to have been cut short"
1392 " in the middle of a packet.";
1395 case WTAP_ERR_BAD_FILE:
1396 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1397 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1400 errmsg = errmsg_errno;
1403 case WTAP_ERR_DECOMPRESS:
1404 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1405 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1408 errmsg = errmsg_errno;
1412 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1413 "An error occurred while reading the"
1414 " capture file %%s: %s.", wtap_strerror(read_err));
1415 errmsg = errmsg_errno;
1418 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1423 if (got_write_error) {
1424 /* Put up an alert box for the write error. */
1425 if (write_err < 0) {
1426 /* Wiretap error. */
1427 switch (write_err) {
1429 case WTAP_ERR_UNSUPPORTED_ENCAP:
1431 * This is a problem with the particular frame we're writing;
1432 * note that, and give the frame number.
1434 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1435 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1436 in_file->packet_num, in_file->filename,
1437 wtap_file_type_string(file_type));
1441 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1442 "An error occurred while writing to the file \"%s\": %s.",
1443 out_filename, wtap_strerror(write_err));
1448 write_failure_alert_box(out_filename, write_err);
1452 if (got_read_error || got_write_error || stop_flag) {
1453 /* Callers aren't expected to treat an error or an explicit abort
1454 differently - we put up error dialogs ourselves, so they don't
1462 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1464 const char *filter_new = dftext ? dftext : "";
1465 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1467 GTimeVal start_time;
1469 /* if new filter equals old one, do nothing unless told to do so */
1470 if (!force && strcmp(filter_new, filter_old) == 0) {
1476 if (dftext == NULL) {
1477 /* The new filter is an empty filter (i.e., display all packets).
1478 * so leave dfcode==NULL
1482 * We have a filter; make a copy of it (as we'll be saving it),
1483 * and try to compile it.
1485 dftext = g_strdup(dftext);
1486 if (!dfilter_compile(dftext, &dfcode)) {
1487 /* The attempt failed; report an error. */
1488 gchar *safe_dftext = simple_dialog_format_message(dftext);
1489 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1491 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1494 "The following display filter isn't a valid display filter:\n%s\n"
1495 "See the help for a description of the display filter syntax.",
1496 simple_dialog_primary_start(), safe_dfilter_error_msg,
1497 simple_dialog_primary_end(), safe_dftext);
1498 g_free(safe_dfilter_error_msg);
1499 g_free(safe_dftext);
1505 if (dfcode == NULL) {
1506 /* Yes - free the filter text, and set it to null. */
1512 /* We have a valid filter. Replace the current filter. */
1513 g_free(cf->dfilter);
1514 cf->dfilter = dftext;
1515 g_get_current_time(&start_time);
1518 /* Now rescan the packet list, applying the new filter, but not
1519 throwing away information constructed on a previous pass. */
1520 if (dftext == NULL) {
1521 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1523 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1526 /* Cleanup and release all dfilter resources */
1527 dfilter_free(dfcode);
1533 cf_reftime_packets(capture_file *cf)
1536 ref_time_packets(cf);
1540 cf_redissect_packets(capture_file *cf)
1542 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1546 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1547 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1551 char errmsg_errno[1024+1];
1553 #ifdef WANT_PACKET_EDITOR
1554 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1555 if (G_UNLIKELY(fdata->file_off == -1)) {
1556 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1559 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "fdata->file_off == -1, but can't find modified frame!");
1563 *pseudo_header = frame->ph;
1564 memcpy(pd, frame->pd, fdata->cap_len);
1569 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1570 fdata->cap_len, &err, &err_info)) {
1573 case WTAP_ERR_UNSUPPORTED_ENCAP:
1574 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1575 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1580 case WTAP_ERR_BAD_FILE:
1581 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1582 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1583 wtap_strerror(err), err_info);
1588 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1589 "An error occurred while reading from the file \"%%s\": %s.",
1590 wtap_strerror(err));
1593 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1600 cf_read_frame(capture_file *cf, frame_data *fdata)
1602 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1605 /* Rescan the list of packets, reconstructing the CList.
1607 "action" describes why we're doing this; it's used in the progress
1610 "action_item" describes what we're doing; it's used in the progress
1613 "refilter" is TRUE if we need to re-evaluate the filter expression.
1615 "redissect" is TRUE if we need to make the dissectors reconstruct
1616 any state information they have (because a preference that affects
1617 some dissector has changed, meaning some dissector might construct
1618 its state differently from the way it was constructed the last time). */
1620 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1621 gboolean refilter, gboolean redissect)
1623 /* Rescan packets new packet list */
1626 progdlg_t *progbar = NULL;
1629 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1630 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1631 gboolean selected_frame_seen;
1633 GTimeVal start_time;
1634 gchar status_str[100];
1635 int progbar_nextstep;
1636 int progbar_quantum;
1638 gboolean filtering_tap_listeners;
1640 gboolean add_to_packet_list = FALSE;
1643 /* Compile the current display filter.
1644 * We assume this will not fail since cf->dfilter is only set in
1645 * cf_filter IFF the filter was valid.
1647 compiled = dfilter_compile(cf->dfilter, &dfcode);
1648 g_assert(!cf->dfilter || (compiled && dfcode));
1650 /* Do we have any tap listeners with filters? */
1651 filtering_tap_listeners = have_filtering_tap_listeners();
1653 /* Get the union of the flags for all tap listeners. */
1654 tap_flags = union_of_tap_listener_flags();
1656 reset_tap_listeners();
1657 /* Which frame, if any, is the currently selected frame?
1658 XXX - should the selected frame or the focus frame be the "current"
1659 frame, that frame being the one from which "Find Frame" searches
1661 selected_frame = cf->current_frame;
1663 /* Mark frame num as not found */
1664 selected_frame_num = -1;
1666 /* Freeze the packet list while we redo it, so we don't get any
1667 screen updates while it happens. */
1668 new_packet_list_freeze();
1671 /* We need to re-initialize all the state information that protocols
1672 keep, because some preference that controls a dissector has changed,
1673 which might cause the state information to be constructed differently
1674 by that dissector. */
1676 /* We might receive new packets while redissecting, and we don't
1677 want to dissect those before their time. */
1678 cf->redissecting = TRUE;
1680 /* Cleanup all data structures used for dissection. */
1681 cleanup_dissection();
1682 /* Initialize all data structures used for dissection. */
1685 /* We need to redissect the packets so we have to discard our old
1686 * packet list store. */
1687 new_packet_list_clear();
1688 add_to_packet_list = TRUE;
1691 /* We don't yet know which will be the first and last frames displayed. */
1692 cf->first_displayed = 0;
1693 cf->last_displayed = 0;
1695 /* We currently don't display any packets */
1696 cf->displayed_count = 0;
1698 /* Iterate through the list of frames. Call a routine for each frame
1699 to check whether it should be displayed and, if so, add it to
1700 the display list. */
1701 nstime_set_unset(&first_ts);
1702 nstime_set_unset(&prev_dis_ts);
1703 nstime_set_unset(&prev_cap_ts);
1706 /* Update the progress bar when it gets to this value. */
1707 progbar_nextstep = 0;
1708 /* When we reach the value that triggers a progress bar update,
1709 bump that value by this amount. */
1710 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1711 /* Count of packets at which we've looked. */
1713 /* Progress so far. */
1717 g_get_current_time(&start_time);
1719 /* no previous row yet */
1720 prev_frame_num = -1;
1723 preceding_frame_num = -1;
1724 preceding_frame = NULL;
1725 following_frame_num = -1;
1726 following_frame = NULL;
1728 selected_frame_seen = FALSE;
1730 for (framenum = 1; framenum <= cf->count; framenum++) {
1731 fdata = frame_data_sequence_find(cf->frames, framenum);
1733 /* Create the progress bar if necessary.
1734 We check on every iteration of the loop, so that it takes no
1735 longer than the standard time to create it (otherwise, for a
1736 large file, we might take considerably longer than that standard
1737 time in order to get to the next progress bar step). */
1738 if (progbar == NULL)
1739 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1740 &stop_flag, &start_time,
1743 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1744 when we update it, we have to run the GTK+ main loop to get it
1745 to repaint what's pending, and doing so may involve an "ioctl()"
1746 to see if there's any pending input from an X server, and doing
1747 that for every packet can be costly, especially on a big file. */
1748 if (count >= progbar_nextstep) {
1749 /* let's not divide by zero. I should never be started
1750 * with count == 0, so let's assert that
1752 g_assert(cf->count > 0);
1753 progbar_val = (gfloat) count / cf->count;
1755 if (progbar != NULL) {
1756 g_snprintf(status_str, sizeof(status_str),
1757 "%4u of %u frames", count, cf->count);
1758 update_progress_dlg(progbar, progbar_val, status_str);
1761 progbar_nextstep += progbar_quantum;
1765 /* Well, the user decided to abort the filtering. Just stop.
1767 XXX - go back to the previous filter? Users probably just
1768 want not to wait for a filtering operation to finish;
1769 unless we cancel by having no filter, reverting to the
1770 previous filter will probably be even more expensive than
1771 continuing the filtering, as it involves going back to the
1772 beginning and filtering, and even with no filter we currently
1773 have to re-generate the entire clist, which is also expensive.
1775 I'm not sure what Network Monitor does, but it doesn't appear
1776 to give you an unfiltered display if you cancel. */
1783 /* Since all state for the frame was destroyed, mark the frame
1784 * as not visited, free the GSList referring to the state
1785 * data (the per-frame data itself was freed by
1786 * "init_dissection()"), and null out the GSList pointer. */
1787 fdata->flags.visited = 0;
1788 frame_data_cleanup(fdata);
1791 if (!cf_read_frame(cf, fdata))
1792 break; /* error reading the frame */
1794 /* If the previous frame is displayed, and we haven't yet seen the
1795 selected frame, remember that frame - it's the closest one we've
1796 yet seen before the selected frame. */
1797 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1798 preceding_frame_num = prev_frame_num;
1799 preceding_frame = prev_frame;
1801 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1802 tap_flags, &cf->pseudo_header, cf->pd,
1804 add_to_packet_list);
1806 /* If this frame is displayed, and this is the first frame we've
1807 seen displayed after the selected frame, remember this frame -
1808 it's the closest one we've yet seen at or after the selected
1810 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1811 following_frame_num = fdata->num;
1812 following_frame = fdata;
1814 if (fdata == selected_frame) {
1815 selected_frame_seen = TRUE;
1816 if (fdata->flags.passed_dfilter)
1817 selected_frame_num = fdata->num;
1820 /* Remember this frame - it'll be the previous frame
1821 on the next pass through the loop. */
1822 prev_frame_num = fdata->num;
1826 /* We are done redissecting the packet list. */
1827 cf->redissecting = FALSE;
1830 /* Clear out what remains of the visited flags and per-frame data
1833 XXX - that may cause various forms of bogosity when dissecting
1834 these frames, as they won't have been seen by this sequential
1835 pass, but the only alternative I see is to keep scanning them
1836 even though the user requested that the scan stop, and that
1837 would leave the user stuck with an Wireshark grinding on
1838 until it finishes. Should we just stick them with that? */
1839 for (; framenum <= cf->count; framenum++) {
1840 fdata = frame_data_sequence_find(cf->frames, framenum);
1841 fdata->flags.visited = 0;
1842 frame_data_cleanup(fdata);
1846 /* We're done filtering the packets; destroy the progress bar if it
1848 if (progbar != NULL)
1849 destroy_progress_dlg(progbar);
1851 /* Unfreeze the packet list. */
1852 if (!add_to_packet_list)
1853 new_packet_list_recreate_visible_rows();
1855 /* Compute the time it took to filter the file */
1856 compute_elapsed(&start_time);
1858 new_packet_list_thaw();
1860 if (selected_frame_num == -1) {
1861 /* The selected frame didn't pass the filter. */
1862 if (selected_frame == NULL) {
1863 /* That's because there *was* no selected frame. Make the first
1864 displayed frame the current frame. */
1865 selected_frame_num = 0;
1867 /* Find the nearest displayed frame to the selected frame (whether
1868 it's before or after that frame) and make that the current frame.
1869 If the next and previous displayed frames are equidistant from the
1870 selected frame, choose the next one. */
1871 g_assert(following_frame == NULL ||
1872 following_frame->num >= selected_frame->num);
1873 g_assert(preceding_frame == NULL ||
1874 preceding_frame->num <= selected_frame->num);
1875 if (following_frame == NULL) {
1876 /* No frame after the selected frame passed the filter, so we
1877 have to select the last displayed frame before the selected
1879 selected_frame_num = preceding_frame_num;
1880 selected_frame = preceding_frame;
1881 } else if (preceding_frame == NULL) {
1882 /* No frame before the selected frame passed the filter, so we
1883 have to select the first displayed frame after the selected
1885 selected_frame_num = following_frame_num;
1886 selected_frame = following_frame;
1888 /* Frames before and after the selected frame passed the filter, so
1889 we'll select the previous frame */
1890 selected_frame_num = preceding_frame_num;
1891 selected_frame = preceding_frame;
1896 if (selected_frame_num == -1) {
1897 /* There are no frames displayed at all. */
1898 cf_unselect_packet(cf);
1900 /* Either the frame that was selected passed the filter, or we've
1901 found the nearest displayed frame to that frame. Select it, make
1902 it the focus row, and make it visible. */
1903 /* Set to invalid to force update of packet list and packet details */
1904 cf->current_row = -1;
1905 if (selected_frame_num == 0) {
1906 new_packet_list_select_first_row();
1908 if (!new_packet_list_select_row_from_data(selected_frame)) {
1909 /* We didn't find a row corresponding to this frame.
1910 This means that the frame isn't being displayed currently,
1911 so we can't select it. */
1912 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1913 "%sEnd of capture exceeded!%s\n\n"
1914 "The capture file is probably not fully dissected.",
1915 simple_dialog_primary_start(), simple_dialog_primary_end());
1920 /* Cleanup and release all dfilter resources */
1921 dfilter_free(dfcode);
1926 * Scan trough all frame data and recalculate the ref time
1927 * without rereading the file.
1928 * XXX - do we need a progres bar or is this fast enough?
1931 ref_time_packets(capture_file *cf)
1936 nstime_set_unset(&first_ts);
1937 nstime_set_unset(&prev_dis_ts);
1940 for (framenum = 1; framenum <= cf->count; framenum++) {
1941 fdata = frame_data_sequence_find(cf->frames, framenum);
1943 /* just add some value here until we know if it is being displayed or not */
1944 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1950 /* If we don't have the time stamp of the first packet in the
1951 capture, it's because this is the first packet. Save the time
1952 stamp of this packet as the time stamp of the first packet. */
1953 if (nstime_is_unset(&first_ts)) {
1954 first_ts = fdata->abs_ts;
1956 /* if this frames is marked as a reference time frame, reset
1957 firstsec and firstusec to this frame */
1958 if(fdata->flags.ref_time){
1959 first_ts = fdata->abs_ts;
1962 /* If we don't have the time stamp of the previous displayed packet,
1963 it's because this is the first displayed packet. Save the time
1964 stamp of this packet as the time stamp of the previous displayed
1966 if (nstime_is_unset(&prev_dis_ts)) {
1967 prev_dis_ts = fdata->abs_ts;
1970 /* Get the time elapsed between the first packet and this packet. */
1971 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1973 /* If it's greater than the current elapsed time, set the elapsed time
1974 to it (we check for "greater than" so as not to be confused by
1975 time moving backwards). */
1976 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1977 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1978 cf->elapsed_time = fdata->rel_ts;
1981 /* Get the time elapsed between the previous displayed packet and
1983 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1985 prev_dis_ts = fdata->abs_ts;
1990 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
1991 /* This frame either passed the display filter list or is marked as
1992 a time reference frame. All time reference frames are displayed
1993 even if they dont pass the display filter */
1994 if(fdata->flags.ref_time){
1995 /* if this was a TIME REF frame we should reset the cum_bytes field */
1996 cum_bytes = fdata->pkt_len;
1997 fdata->cum_bytes = cum_bytes;
1999 /* increase cum_bytes with this packets length */
2000 cum_bytes += fdata->pkt_len;
2013 process_specified_packets(capture_file *cf, packet_range_t *range,
2014 const char *string1, const char *string2, gboolean terminate_is_stop,
2015 gboolean (*callback)(capture_file *, frame_data *,
2016 union wtap_pseudo_header *, const guint8 *, void *),
2017 void *callback_args)
2021 union wtap_pseudo_header pseudo_header;
2022 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2023 psp_return_t ret = PSP_FINISHED;
2025 progdlg_t *progbar = NULL;
2028 gboolean progbar_stop_flag;
2029 GTimeVal progbar_start_time;
2030 gchar progbar_status_str[100];
2031 int progbar_nextstep;
2032 int progbar_quantum;
2033 range_process_e process_this;
2035 /* Update the progress bar when it gets to this value. */
2036 progbar_nextstep = 0;
2037 /* When we reach the value that triggers a progress bar update,
2038 bump that value by this amount. */
2039 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2040 /* Count of packets at which we've looked. */
2042 /* Progress so far. */
2045 progbar_stop_flag = FALSE;
2046 g_get_current_time(&progbar_start_time);
2048 packet_range_process_init(range);
2050 /* Iterate through all the packets, printing the packets that
2051 were selected by the current display filter. */
2052 for (framenum = 1; framenum <= cf->count; framenum++) {
2053 fdata = frame_data_sequence_find(cf->frames, framenum);
2055 /* Create the progress bar if necessary.
2056 We check on every iteration of the loop, so that it takes no
2057 longer than the standard time to create it (otherwise, for a
2058 large file, we might take considerably longer than that standard
2059 time in order to get to the next progress bar step). */
2060 if (progbar == NULL)
2061 progbar = delayed_create_progress_dlg(string1, string2,
2064 &progbar_start_time,
2067 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2068 when we update it, we have to run the GTK+ main loop to get it
2069 to repaint what's pending, and doing so may involve an "ioctl()"
2070 to see if there's any pending input from an X server, and doing
2071 that for every packet can be costly, especially on a big file. */
2072 if (progbar_count >= progbar_nextstep) {
2073 /* let's not divide by zero. I should never be started
2074 * with count == 0, so let's assert that
2076 g_assert(cf->count > 0);
2077 progbar_val = (gfloat) progbar_count / cf->count;
2079 if (progbar != NULL) {
2080 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2081 "%4u of %u packets", progbar_count, cf->count);
2082 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2085 progbar_nextstep += progbar_quantum;
2088 if (progbar_stop_flag) {
2089 /* Well, the user decided to abort the operation. Just stop,
2090 and arrange to return PSP_STOPPED to our caller, so they know
2091 it was stopped explicitly. */
2098 /* do we have to process this packet? */
2099 process_this = packet_range_process_packet(range, fdata);
2100 if (process_this == range_process_next) {
2101 /* this packet uninteresting, continue with next one */
2103 } else if (process_this == range_processing_finished) {
2104 /* all interesting packets processed, stop the loop */
2108 /* Get the packet */
2109 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2110 /* Attempt to get the packet failed. */
2114 /* Process the packet */
2115 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2116 /* Callback failed. We assume it reported the error appropriately. */
2122 /* We're done printing the packets; destroy the progress bar if
2124 if (progbar != NULL)
2125 destroy_progress_dlg(progbar);
2131 gboolean construct_protocol_tree;
2133 } retap_callback_args_t;
2136 retap_packet(capture_file *cf _U_, frame_data *fdata,
2137 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2140 retap_callback_args_t *args = argsp;
2143 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2144 tap_queue_init(&edt);
2145 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2146 tap_push_tapped_queue(&edt);
2147 epan_dissect_cleanup(&edt);
2153 cf_retap_packets(capture_file *cf)
2155 packet_range_t range;
2156 retap_callback_args_t callback_args;
2157 gboolean filtering_tap_listeners;
2160 /* Do we have any tap listeners with filters? */
2161 filtering_tap_listeners = have_filtering_tap_listeners();
2163 tap_flags = union_of_tap_listener_flags();
2165 /* If any tap listeners have filters, or require the protocol tree,
2166 construct the protocol tree. */
2167 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2168 (tap_flags & TL_REQUIRES_PROTO_TREE);
2170 /* If any tap listeners require the columns, construct them. */
2171 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2173 /* Reset the tap listeners. */
2174 reset_tap_listeners();
2176 /* Iterate through the list of packets, dissecting all packets and
2177 re-running the taps. */
2178 packet_range_init(&range);
2179 packet_range_process_init(&range);
2180 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2181 "all packets", TRUE, retap_packet,
2184 /* Completed successfully. */
2188 /* Well, the user decided to abort the refiltering.
2189 Return CF_READ_ABORTED so our caller knows they did that. */
2190 return CF_READ_ABORTED;
2193 /* Error while retapping. */
2194 return CF_READ_ERROR;
2197 g_assert_not_reached();
2202 print_args_t *print_args;
2203 gboolean print_header_line;
2204 char *header_line_buf;
2205 int header_line_buf_len;
2206 gboolean print_formfeed;
2207 gboolean print_separator;
2211 } print_callback_args_t;
2214 print_packet(capture_file *cf, frame_data *fdata,
2215 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2218 print_callback_args_t *args = argsp;
2225 gboolean proto_tree_needed;
2226 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2227 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2229 /* Create the protocol tree, and make it visible, if we're printing
2230 the dissection or the hex data.
2231 XXX - do we need it if we're just printing the hex data? */
2233 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2234 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2236 /* Fill in the column information if we're printing the summary
2238 if (args->print_args->print_summary) {
2239 col_custom_prime_edt(&edt, &cf->cinfo);
2240 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2241 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2243 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2245 if (args->print_formfeed) {
2246 if (!new_page(args->print_args->stream))
2249 if (args->print_separator) {
2250 if (!print_line(args->print_args->stream, 0, ""))
2256 * We generate bookmarks, if the output format supports them.
2257 * The name is "__frameN__".
2259 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2261 if (args->print_args->print_summary) {
2262 if (args->print_header_line) {
2263 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2265 args->print_header_line = FALSE; /* we might not need to print any more */
2267 cp = &args->line_buf[0];
2269 for (i = 0; i < cf->cinfo.num_cols; i++) {
2270 /* Find the length of the string for this column. */
2271 column_len = (int) strlen(cf->cinfo.col_data[i]);
2272 if (args->col_widths[i] > column_len)
2273 column_len = args->col_widths[i];
2275 /* Make sure there's room in the line buffer for the column; if not,
2276 double its length. */
2277 line_len += column_len + 1; /* "+1" for space */
2278 if (line_len > args->line_buf_len) {
2279 cp_off = (int) (cp - args->line_buf);
2280 args->line_buf_len = 2 * line_len;
2281 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2282 cp = args->line_buf + cp_off;
2285 /* Right-justify the packet number column. */
2286 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2287 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2289 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2291 if (i != cf->cinfo.num_cols - 1)
2297 * Generate a bookmark, using the summary line as the title.
2299 if (!print_bookmark(args->print_args->stream, bookmark_name,
2303 if (!print_line(args->print_args->stream, 0, args->line_buf))
2307 * Generate a bookmark, using "Frame N" as the title, as we're not
2308 * printing the summary line.
2310 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2311 if (!print_bookmark(args->print_args->stream, bookmark_name,
2314 } /* if (print_summary) */
2316 if (args->print_args->print_dissections != print_dissections_none) {
2317 if (args->print_args->print_summary) {
2318 /* Separate the summary line from the tree with a blank line. */
2319 if (!print_line(args->print_args->stream, 0, ""))
2323 /* Print the information in that tree. */
2324 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2327 /* Print a blank line if we print anything after this (aka more than one packet). */
2328 args->print_separator = TRUE;
2330 /* Print a header line if we print any more packet summaries */
2331 args->print_header_line = TRUE;
2334 if (args->print_args->print_hex) {
2335 /* Print the full packet data as hex. */
2336 if (!print_hex_data(args->print_args->stream, &edt))
2339 /* Print a blank line if we print anything after this (aka more than one packet). */
2340 args->print_separator = TRUE;
2342 /* Print a header line if we print any more packet summaries */
2343 args->print_header_line = TRUE;
2344 } /* if (args->print_args->print_dissections != print_dissections_none) */
2346 epan_dissect_cleanup(&edt);
2348 /* do we want to have a formfeed between each packet from now on? */
2349 if(args->print_args->print_formfeed) {
2350 args->print_formfeed = TRUE;
2356 epan_dissect_cleanup(&edt);
2361 cf_print_packets(capture_file *cf, print_args_t *print_args)
2364 print_callback_args_t callback_args;
2372 callback_args.print_args = print_args;
2373 callback_args.print_header_line = TRUE;
2374 callback_args.header_line_buf = NULL;
2375 callback_args.header_line_buf_len = 256;
2376 callback_args.print_formfeed = FALSE;
2377 callback_args.print_separator = FALSE;
2378 callback_args.line_buf = NULL;
2379 callback_args.line_buf_len = 256;
2380 callback_args.col_widths = NULL;
2382 if (!print_preamble(print_args->stream, cf->filename)) {
2383 destroy_print_stream(print_args->stream);
2384 return CF_PRINT_WRITE_ERROR;
2387 if (print_args->print_summary) {
2388 /* We're printing packet summaries. Allocate the header line buffer
2389 and get the column widths. */
2390 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2392 /* Find the widths for each of the columns - maximum of the
2393 width of the title and the width of the data - and construct
2394 a buffer with a line containing the column titles. */
2395 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2396 cp = &callback_args.header_line_buf[0];
2398 for (i = 0; i < cf->cinfo.num_cols; i++) {
2399 /* Don't pad the last column. */
2400 if (i == cf->cinfo.num_cols - 1)
2401 callback_args.col_widths[i] = 0;
2403 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2404 data_width = get_column_char_width(get_column_format(i));
2405 if (data_width > callback_args.col_widths[i])
2406 callback_args.col_widths[i] = data_width;
2409 /* Find the length of the string for this column. */
2410 column_len = (int) strlen(cf->cinfo.col_title[i]);
2411 if (callback_args.col_widths[i] > column_len)
2412 column_len = callback_args.col_widths[i];
2414 /* Make sure there's room in the line buffer for the column; if not,
2415 double its length. */
2416 line_len += column_len + 1; /* "+1" for space */
2417 if (line_len > callback_args.header_line_buf_len) {
2418 cp_off = (int) (cp - callback_args.header_line_buf);
2419 callback_args.header_line_buf_len = 2 * line_len;
2420 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2421 callback_args.header_line_buf_len + 1);
2422 cp = callback_args.header_line_buf + cp_off;
2425 /* Right-justify the packet number column. */
2426 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2427 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2429 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2431 if (i != cf->cinfo.num_cols - 1)
2436 /* Now start out the main line buffer with the same length as the
2437 header line buffer. */
2438 callback_args.line_buf_len = callback_args.header_line_buf_len;
2439 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2440 } /* if (print_summary) */
2442 /* Iterate through the list of packets, printing the packets we were
2444 ret = process_specified_packets(cf, &print_args->range, "Printing",
2445 "selected packets", TRUE, print_packet,
2448 g_free(callback_args.header_line_buf);
2449 g_free(callback_args.line_buf);
2450 g_free(callback_args.col_widths);
2455 /* Completed successfully. */
2459 /* Well, the user decided to abort the printing.
2461 XXX - note that what got generated before they did that
2462 will get printed if we're piping to a print program; we'd
2463 have to write to a file and then hand that to the print
2464 program to make it actually not print anything. */
2468 /* Error while printing.
2470 XXX - note that what got generated before they did that
2471 will get printed if we're piping to a print program; we'd
2472 have to write to a file and then hand that to the print
2473 program to make it actually not print anything. */
2474 destroy_print_stream(print_args->stream);
2475 return CF_PRINT_WRITE_ERROR;
2478 if (!print_finale(print_args->stream)) {
2479 destroy_print_stream(print_args->stream);
2480 return CF_PRINT_WRITE_ERROR;
2483 if (!destroy_print_stream(print_args->stream))
2484 return CF_PRINT_WRITE_ERROR;
2490 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2491 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2497 /* Create the protocol tree, but don't fill in the column information. */
2498 epan_dissect_init(&edt, TRUE, TRUE);
2499 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2501 /* Write out the information in that tree. */
2502 proto_tree_write_pdml(&edt, fh);
2504 epan_dissect_cleanup(&edt);
2510 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2515 fh = ws_fopen(print_args->file, "w");
2517 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2519 write_pdml_preamble(fh, cf->filename);
2522 return CF_PRINT_WRITE_ERROR;
2525 /* Iterate through the list of packets, printing the packets we were
2527 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2528 "selected packets", TRUE,
2529 write_pdml_packet, fh);
2534 /* Completed successfully. */
2538 /* Well, the user decided to abort the printing. */
2542 /* Error while printing. */
2544 return CF_PRINT_WRITE_ERROR;
2547 write_pdml_finale(fh);
2550 return CF_PRINT_WRITE_ERROR;
2553 /* XXX - check for an error */
2560 write_psml_packet(capture_file *cf, frame_data *fdata,
2561 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2566 gboolean proto_tree_needed;
2568 /* Fill in the column information, only create the protocol tree
2569 if having custom columns. */
2570 proto_tree_needed = have_custom_cols(&cf->cinfo);
2571 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2572 col_custom_prime_edt(&edt, &cf->cinfo);
2573 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2574 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2576 /* Write out the information in that tree. */
2577 proto_tree_write_psml(&edt, fh);
2579 epan_dissect_cleanup(&edt);
2585 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2590 fh = ws_fopen(print_args->file, "w");
2592 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2594 write_psml_preamble(fh);
2597 return CF_PRINT_WRITE_ERROR;
2600 /* Iterate through the list of packets, printing the packets we were
2602 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2603 "selected packets", TRUE,
2604 write_psml_packet, fh);
2609 /* Completed successfully. */
2613 /* Well, the user decided to abort the printing. */
2617 /* Error while printing. */
2619 return CF_PRINT_WRITE_ERROR;
2622 write_psml_finale(fh);
2625 return CF_PRINT_WRITE_ERROR;
2628 /* XXX - check for an error */
2635 write_csv_packet(capture_file *cf, frame_data *fdata,
2636 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2641 gboolean proto_tree_needed;
2643 /* Fill in the column information, only create the protocol tree
2644 if having custom columns. */
2645 proto_tree_needed = have_custom_cols(&cf->cinfo);
2646 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2647 col_custom_prime_edt(&edt, &cf->cinfo);
2648 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2649 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2651 /* Write out the information in that tree. */
2652 proto_tree_write_csv(&edt, fh);
2654 epan_dissect_cleanup(&edt);
2660 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2665 fh = ws_fopen(print_args->file, "w");
2667 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2669 write_csv_preamble(fh);
2672 return CF_PRINT_WRITE_ERROR;
2675 /* Iterate through the list of packets, printing the packets we were
2677 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2678 "selected packets", TRUE,
2679 write_csv_packet, fh);
2684 /* Completed successfully. */
2688 /* Well, the user decided to abort the printing. */
2692 /* Error while printing. */
2694 return CF_PRINT_WRITE_ERROR;
2697 write_csv_finale(fh);
2700 return CF_PRINT_WRITE_ERROR;
2703 /* XXX - check for an error */
2710 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2711 union wtap_pseudo_header *pseudo_header,
2712 const guint8 *pd, void *argsp)
2717 epan_dissect_init(&edt, TRUE, TRUE);
2718 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2719 proto_tree_write_carrays(fdata->num, fh, &edt);
2720 epan_dissect_cleanup(&edt);
2726 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2731 fh = ws_fopen(print_args->file, "w");
2734 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2736 write_carrays_preamble(fh);
2740 return CF_PRINT_WRITE_ERROR;
2743 /* Iterate through the list of packets, printing the packets we were
2745 ret = process_specified_packets(cf, &print_args->range,
2747 "selected packets", TRUE,
2748 write_carrays_packet, fh);
2751 /* Completed successfully. */
2754 /* Well, the user decided to abort the printing. */
2757 /* Error while printing. */
2759 return CF_PRINT_WRITE_ERROR;
2762 write_carrays_finale(fh);
2766 return CF_PRINT_WRITE_ERROR;
2774 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2775 search_direction dir)
2779 mdata.string = string;
2780 mdata.string_len = strlen(string);
2781 return find_packet(cf, match_protocol_tree, &mdata, dir);
2785 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2787 mdata->frame_matched = FALSE;
2788 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2789 mdata->string_len = strlen(mdata->string);
2791 /* Iterate through all the nodes looking for matching text */
2792 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2793 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2797 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2799 match_data *mdata = criterion;
2802 /* Load the frame's data. */
2803 if (!cf_read_frame(cf, fdata)) {
2804 /* Attempt to get the packet failed. */
2808 /* Construct the protocol tree, including the displayed text */
2809 epan_dissect_init(&edt, TRUE, TRUE);
2810 /* We don't need the column information */
2811 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2813 /* Iterate through all the nodes, seeing if they have text that matches. */
2815 mdata->frame_matched = FALSE;
2816 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2817 epan_dissect_cleanup(&edt);
2818 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2822 match_subtree_text(proto_node *node, gpointer data)
2824 match_data *mdata = (match_data*) data;
2825 const gchar *string = mdata->string;
2826 size_t string_len = mdata->string_len;
2827 capture_file *cf = mdata->cf;
2828 field_info *fi = PNODE_FINFO(node);
2829 gchar label_str[ITEM_LABEL_LENGTH];
2836 g_assert(fi && "dissection with an invisible proto tree?");
2838 if (mdata->frame_matched) {
2839 /* We already had a match; don't bother doing any more work. */
2843 /* Don't match invisible entries. */
2844 if (PROTO_ITEM_IS_HIDDEN(node))
2847 /* was a free format label produced? */
2849 label_ptr = fi->rep->representation;
2851 /* no, make a generic label */
2852 label_ptr = label_str;
2853 proto_item_fill_label(fi, label_str);
2856 /* Does that label match? */
2857 label_len = strlen(label_ptr);
2858 for (i = 0; i < label_len; i++) {
2859 c_char = label_ptr[i];
2861 c_char = toupper(c_char);
2862 if (c_char == string[c_match]) {
2864 if (c_match == string_len) {
2865 /* No need to look further; we have a match */
2866 mdata->frame_matched = TRUE;
2874 /* Recurse into the subtree, if it exists */
2875 if (node->first_child != NULL)
2876 proto_tree_children_foreach(node, match_subtree_text, mdata);
2880 cf_find_packet_summary_line(capture_file *cf, const char *string,
2881 search_direction dir)
2885 mdata.string = string;
2886 mdata.string_len = strlen(string);
2887 return find_packet(cf, match_summary_line, &mdata, dir);
2891 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2893 match_data *mdata = criterion;
2894 const gchar *string = mdata->string;
2895 size_t string_len = mdata->string_len;
2897 const char *info_column;
2898 size_t info_column_len;
2899 match_result result = MR_NOTMATCHED;
2905 /* Load the frame's data. */
2906 if (!cf_read_frame(cf, fdata)) {
2907 /* Attempt to get the packet failed. */
2911 /* Don't bother constructing the protocol tree */
2912 epan_dissect_init(&edt, FALSE, FALSE);
2913 /* Get the column information */
2914 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2916 /* Find the Info column */
2917 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2918 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2919 /* Found it. See if we match. */
2920 info_column = edt.pi.cinfo->col_data[colx];
2921 info_column_len = strlen(info_column);
2922 for (i = 0; i < info_column_len; i++) {
2923 c_char = info_column[i];
2925 c_char = toupper(c_char);
2926 if (c_char == string[c_match]) {
2928 if (c_match == string_len) {
2929 result = MR_MATCHED;
2938 epan_dissect_cleanup(&edt);
2945 } cbs_t; /* "Counted byte string" */
2948 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2949 search_direction dir)
2954 info.data_len = string_size;
2956 /* String or hex search? */
2958 /* String search - what type of string? */
2959 switch (cf->scs_type) {
2961 case SCS_ASCII_AND_UNICODE:
2962 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2965 return find_packet(cf, match_ascii, &info, dir);
2968 return find_packet(cf, match_unicode, &info, dir);
2971 g_assert_not_reached();
2975 return find_packet(cf, match_binary, &info, dir);
2979 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2981 cbs_t *info = criterion;
2982 const guint8 *ascii_text = info->data;
2983 size_t textlen = info->data_len;
2984 match_result result;
2990 /* Load the frame's data. */
2991 if (!cf_read_frame(cf, fdata)) {
2992 /* Attempt to get the packet failed. */
2996 result = MR_NOTMATCHED;
2997 buf_len = fdata->pkt_len;
2998 for (i = 0; i < buf_len; i++) {
3001 c_char = toupper(c_char);
3003 if (c_char == ascii_text[c_match]) {
3005 if (c_match == textlen) {
3006 result = MR_MATCHED;
3007 cf->search_pos = i; /* Save the position of the last character
3008 for highlighting the field. */
3019 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3021 cbs_t *info = criterion;
3022 const guint8 *ascii_text = info->data;
3023 size_t textlen = info->data_len;
3024 match_result result;
3030 /* Load the frame's data. */
3031 if (!cf_read_frame(cf, fdata)) {
3032 /* Attempt to get the packet failed. */
3036 result = MR_NOTMATCHED;
3037 buf_len = fdata->pkt_len;
3038 for (i = 0; i < buf_len; i++) {
3041 c_char = toupper(c_char);
3042 if (c_char == ascii_text[c_match]) {
3044 if (c_match == textlen) {
3045 result = MR_MATCHED;
3046 cf->search_pos = i; /* Save the position of the last character
3047 for highlighting the field. */
3057 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3059 cbs_t *info = criterion;
3060 const guint8 *ascii_text = info->data;
3061 size_t textlen = info->data_len;
3062 match_result result;
3068 /* Load the frame's data. */
3069 if (!cf_read_frame(cf, fdata)) {
3070 /* Attempt to get the packet failed. */
3074 result = MR_NOTMATCHED;
3075 buf_len = fdata->pkt_len;
3076 for (i = 0; i < buf_len; i++) {
3079 c_char = toupper(c_char);
3080 if (c_char == ascii_text[c_match]) {
3083 if (c_match == textlen) {
3084 result = MR_MATCHED;
3085 cf->search_pos = i; /* Save the position of the last character
3086 for highlighting the field. */
3096 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3098 cbs_t *info = criterion;
3099 const guint8 *binary_data = info->data;
3100 size_t datalen = info->data_len;
3101 match_result result;
3106 /* Load the frame's data. */
3107 if (!cf_read_frame(cf, fdata)) {
3108 /* Attempt to get the packet failed. */
3112 result = MR_NOTMATCHED;
3113 buf_len = fdata->pkt_len;
3114 for (i = 0; i < buf_len; i++) {
3115 if (cf->pd[i] == binary_data[c_match]) {
3117 if (c_match == datalen) {
3118 result = MR_MATCHED;
3119 cf->search_pos = i; /* Save the position of the last character
3120 for highlighting the field. */
3130 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3131 search_direction dir)
3133 return find_packet(cf, match_dfilter, sfcode, dir);
3137 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3138 search_direction dir)
3143 if (!dfilter_compile(filter, &sfcode)) {
3145 * XXX - this shouldn't happen, as the filter string is machine
3150 if (sfcode == NULL) {
3152 * XXX - this shouldn't happen, as the filter string is machine
3157 result = find_packet(cf, match_dfilter, sfcode, dir);
3158 dfilter_free(sfcode);
3163 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3165 dfilter_t *sfcode = criterion;
3167 match_result result;
3169 /* Load the frame's data. */
3170 if (!cf_read_frame(cf, fdata)) {
3171 /* Attempt to get the packet failed. */
3175 epan_dissect_init(&edt, TRUE, FALSE);
3176 epan_dissect_prime_dfilter(&edt, sfcode);
3177 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3178 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3179 epan_dissect_cleanup(&edt);
3184 cf_find_packet_marked(capture_file *cf, search_direction dir)
3186 return find_packet(cf, match_marked, NULL, dir);
3190 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3192 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3196 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3198 return find_packet(cf, match_time_reference, NULL, dir);
3202 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3204 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3208 find_packet(capture_file *cf,
3209 match_result (*match_function)(capture_file *, frame_data *, void *),
3210 void *criterion, search_direction dir)
3212 frame_data *start_fd;
3215 frame_data *new_fd = NULL;
3216 progdlg_t *progbar = NULL;
3221 GTimeVal start_time;
3222 gchar status_str[100];
3223 int progbar_nextstep;
3224 int progbar_quantum;
3226 match_result result;
3228 start_fd = cf->current_frame;
3229 if (start_fd != NULL) {
3230 /* Iterate through the list of packets, starting at the packet we've
3231 picked, calling a routine to run the filter on the packet, see if
3232 it matches, and stop if so. */
3234 framenum = start_fd->num;
3236 /* Update the progress bar when it gets to this value. */
3237 progbar_nextstep = 0;
3238 /* When we reach the value that triggers a progress bar update,
3239 bump that value by this amount. */
3240 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3241 /* Progress so far. */
3245 g_get_current_time(&start_time);
3247 title = cf->sfilter?cf->sfilter:"";
3249 /* Create the progress bar if necessary.
3250 We check on every iteration of the loop, so that it takes no
3251 longer than the standard time to create it (otherwise, for a
3252 large file, we might take considerably longer than that standard
3253 time in order to get to the next progress bar step). */
3254 if (progbar == NULL)
3255 progbar = delayed_create_progress_dlg("Searching", title,
3256 FALSE, &stop_flag, &start_time, progbar_val);
3258 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3259 when we update it, we have to run the GTK+ main loop to get it
3260 to repaint what's pending, and doing so may involve an "ioctl()"
3261 to see if there's any pending input from an X server, and doing
3262 that for every packet can be costly, especially on a big file. */
3263 if (count >= progbar_nextstep) {
3264 /* let's not divide by zero. I should never be started
3265 * with count == 0, so let's assert that
3267 g_assert(cf->count > 0);
3269 progbar_val = (gfloat) count / cf->count;
3271 if (progbar != NULL) {
3272 g_snprintf(status_str, sizeof(status_str),
3273 "%4u of %u packets", count, cf->count);
3274 update_progress_dlg(progbar, progbar_val, status_str);
3277 progbar_nextstep += progbar_quantum;
3281 /* Well, the user decided to abort the search. Go back to the
3282 frame where we started. */
3287 /* Go past the current frame. */
3288 if (dir == SD_BACKWARD) {
3289 /* Go on to the previous frame. */
3290 if (framenum == 1) {
3292 * XXX - other apps have a bit more of a detailed message
3293 * for this, and instead of offering "OK" and "Cancel",
3294 * they offer things such as "Continue" and "Cancel";
3295 * we need an API for popping up alert boxes with
3296 * {Verb} and "Cancel".
3299 if (prefs.gui_find_wrap)
3301 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3302 framenum = cf->count; /* wrap around */
3306 statusbar_push_temporary_msg("Search reached the beginning.");
3307 framenum = start_fd->num; /* stay on previous packet */
3312 /* Go on to the next frame. */
3313 if (framenum == cf->count) {
3314 if (prefs.gui_find_wrap)
3316 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3317 framenum = 1; /* wrap around */
3321 statusbar_push_temporary_msg("Search reached the end.");
3322 framenum = start_fd->num; /* stay on previous packet */
3327 fdata = frame_data_sequence_find(cf->frames, framenum);
3331 /* Is this packet in the display? */
3332 if (fdata->flags.passed_dfilter) {
3333 /* Yes. Does it match the search criterion? */
3334 result = (*match_function)(cf, fdata, criterion);
3335 if (result == MR_ERROR) {
3336 /* Error; our caller has reported the error. Go back to the frame
3337 where we started. */
3340 } else if (result == MR_MATCHED) {
3341 /* Yes. Go to the new frame. */
3347 if (fdata == start_fd) {
3348 /* We're back to the frame we were on originally, and that frame
3349 doesn't match the search filter. The search failed. */
3354 /* We're done scanning the packets; destroy the progress bar if it
3356 if (progbar != NULL)
3357 destroy_progress_dlg(progbar);
3360 if (new_fd != NULL) {
3361 /* Find and select */
3362 cf->search_in_progress = TRUE;
3363 found = new_packet_list_select_row_from_data(new_fd);
3364 cf->search_in_progress = FALSE;
3365 cf->search_pos = 0; /* Reset the position */
3367 /* We didn't find a row corresponding to this frame.
3368 This means that the frame isn't being displayed currently,
3369 so we can't select it. */
3370 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3371 "%sEnd of capture exceeded!%s\n\n"
3372 "The capture file is probably not fully dissected.",
3373 simple_dialog_primary_start(), simple_dialog_primary_end());
3376 return TRUE; /* success */
3378 return FALSE; /* failure */
3382 cf_goto_frame(capture_file *cf, guint fnumber)
3386 fdata = frame_data_sequence_find(cf->frames, fnumber);
3388 if (fdata == NULL) {
3389 /* we didn't find a packet with that packet number */
3390 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3391 return FALSE; /* we failed to go to that packet */
3393 if (!fdata->flags.passed_dfilter) {
3394 /* that packet currently isn't displayed */
3395 /* XXX - add it to the set of displayed packets? */
3396 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3397 return FALSE; /* we failed to go to that packet */
3400 if (!new_packet_list_select_row_from_data(fdata)) {
3401 /* We didn't find a row corresponding to this frame.
3402 This means that the frame isn't being displayed currently,
3403 so we can't select it. */
3404 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3405 "%sEnd of capture exceeded!%s\n\n"
3406 "The capture file is probably not fully dissected.",
3407 simple_dialog_primary_start(), simple_dialog_primary_end());
3410 return TRUE; /* we got to that packet */
3414 cf_goto_top_frame(void)
3416 /* Find and select */
3417 new_packet_list_select_first_row();
3418 return TRUE; /* we got to that packet */
3422 cf_goto_bottom_frame(void)
3424 /* Find and select */
3425 new_packet_list_select_last_row();
3426 return TRUE; /* we got to that packet */
3430 * Go to frame specified by currently selected protocol tree item.
3433 cf_goto_framenum(capture_file *cf)
3435 header_field_info *hfinfo;
3438 if (cf->finfo_selected) {
3439 hfinfo = cf->finfo_selected->hfinfo;
3441 if (hfinfo->type == FT_FRAMENUM) {
3442 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3444 return cf_goto_frame(cf, framenum);
3451 /* Select the packet on a given row. */
3453 cf_select_packet(capture_file *cf, int row)
3457 /* Get the frame data struct pointer for this frame */
3458 fdata = new_packet_list_get_row_data(row);
3460 if (fdata == NULL) {
3461 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3462 the first entry is added to it by "real_insert_row()", that row
3463 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3464 our version and the vanilla GTK+ version).
3466 This means that a "select-row" signal is emitted; this causes
3467 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3470 "cf_select_packet()" fetches, above, the data associated with the
3471 row that was selected; however, as "gtk_clist_append()", which
3472 called "real_insert_row()", hasn't yet returned, we haven't yet
3473 associated any data with that row, so we get back a null pointer.
3475 We can't assume that there's only one frame in the frame list,
3476 either, as we may be filtering the display.
3478 We therefore assume that, if "row" is 0, i.e. the first row
3479 is being selected, and "cf->first_displayed" equals
3480 "cf->last_displayed", i.e. there's only one frame being
3481 displayed, that frame is the frame we want.
3483 This means we have to set "cf->first_displayed" and
3484 "cf->last_displayed" before adding the row to the
3485 GtkCList; see the comment in "add_packet_to_packet_list()". */
3487 if (row == 0 && cf->first_displayed == cf->last_displayed)
3488 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3491 /* If fdata _still_ isn't set simply give up. */
3492 if (fdata == NULL) {
3496 /* Get the data in that frame. */
3497 if (!cf_read_frame (cf, fdata)) {
3501 /* Record that this frame is the current frame. */
3502 cf->current_frame = fdata;
3503 cf->current_row = row;
3505 /* Create the logical protocol tree. */
3506 if (cf->edt != NULL)
3507 epan_dissect_free(cf->edt);
3509 /* We don't need the columns here. */
3510 cf->edt = epan_dissect_new(TRUE, TRUE);
3512 tap_build_interesting(cf->edt);
3513 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3516 dfilter_macro_build_ftv_cache(cf->edt->tree);
3518 cf_callback_invoke(cf_cb_packet_selected, cf);
3521 /* Unselect the selected packet, if any. */
3523 cf_unselect_packet(capture_file *cf)
3525 /* Destroy the epan_dissect_t for the unselected packet. */
3526 if (cf->edt != NULL) {
3527 epan_dissect_free(cf->edt);
3531 /* No packet is selected. */
3532 cf->current_frame = NULL;
3533 cf->current_row = 0;
3535 cf_callback_invoke(cf_cb_packet_unselected, cf);
3537 /* No protocol tree means no selected field. */
3538 cf_unselect_field(cf);
3541 /* Unset the selected protocol tree field, if any. */
3543 cf_unselect_field(capture_file *cf)
3545 cf->finfo_selected = NULL;
3547 cf_callback_invoke(cf_cb_field_unselected, cf);
3551 * Mark a particular frame.
3554 cf_mark_frame(capture_file *cf, frame_data *frame)
3556 if (! frame->flags.marked) {
3557 frame->flags.marked = TRUE;
3558 if (cf->count > cf->marked_count)
3564 * Unmark a particular frame.
3567 cf_unmark_frame(capture_file *cf, frame_data *frame)
3569 if (frame->flags.marked) {
3570 frame->flags.marked = FALSE;
3571 if (cf->marked_count > 0)
3577 * Ignore a particular frame.
3580 cf_ignore_frame(capture_file *cf, frame_data *frame)
3582 if (! frame->flags.ignored) {
3583 frame->flags.ignored = TRUE;
3584 if (cf->count > cf->ignored_count)
3585 cf->ignored_count++;
3590 * Un-ignore a particular frame.
3593 cf_unignore_frame(capture_file *cf, frame_data *frame)
3595 if (frame->flags.ignored) {
3596 frame->flags.ignored = FALSE;
3597 if (cf->ignored_count > 0)
3598 cf->ignored_count--;
3606 } save_callback_args_t;
3609 * Save a capture to a file, in a particular format, saving either
3610 * all packets, all currently-displayed packets, or all marked packets.
3612 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3613 * up a message box for the failure.
3616 save_packet(capture_file *cf _U_, frame_data *fdata,
3617 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3620 save_callback_args_t *args = argsp;
3621 struct wtap_pkthdr hdr;
3624 /* init the wtap header for saving */
3625 hdr.ts.secs = fdata->abs_ts.secs;
3626 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3627 hdr.caplen = fdata->cap_len;
3628 hdr.len = fdata->pkt_len;
3629 hdr.pkt_encap = fdata->lnk_t;
3631 /* and save the packet */
3632 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3634 /* Wiretap error. */
3637 case WTAP_ERR_UNSUPPORTED_ENCAP:
3639 * This is a problem with the particular frame we're writing;
3640 * note that, and give the frame number.
3642 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3643 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3644 fdata->num, wtap_file_type_string(args->file_type));
3648 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3649 "An error occurred while writing to the file \"%s\": %s.",
3650 args->fname, wtap_strerror(err));
3655 write_failure_alert_box(args->fname, err);
3663 * Can this capture file be saved in any format except by copying the raw data?
3666 cf_can_save_as(capture_file *cf)
3670 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3671 /* To save a file with Wiretap, Wiretap has to handle that format,
3672 and its code to handle that format must be able to write a file
3673 with this file's encapsulation type. */
3674 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3675 /* OK, we can write it out in this type. */
3680 /* No, we couldn't save it in any format. */
3685 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3687 gchar *from_filename;
3691 save_callback_args_t callback_args;
3693 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3695 /* don't write over an existing file. */
3696 /* this should've been already checked by our caller, just to be sure... */
3697 if (file_exists(fname)) {
3698 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3699 "%sCapture file: \"%s\" already exists!%s\n\n"
3700 "Please choose a different filename.",
3701 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3705 packet_range_process_init(range);
3707 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3708 /* We're not filtering packets, and we're saving it in the format
3709 it's already in, so we can just move or copy the raw data. */
3711 if (cf->is_tempfile) {
3712 /* The file being saved is a temporary file from a live
3713 capture, so it doesn't need to stay around under that name;
3714 first, try renaming the capture buffer file to the new name. */
3716 if (ws_rename(cf->filename, fname) == 0) {
3717 /* That succeeded - there's no need to copy the source file. */
3718 from_filename = NULL;
3721 if (errno == EXDEV) {
3722 /* They're on different file systems, so we have to copy the
3725 from_filename = cf->filename;
3727 /* The rename failed, but not because they're on different
3728 file systems - put up an error message. (Or should we
3729 just punt and try to copy? The only reason why I'd
3730 expect the rename to fail and the copy to succeed would
3731 be if we didn't have permission to remove the file from
3732 the temporary directory, and that might be fixable - but
3733 is it worth requiring the user to go off and fix it?) */
3734 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3735 file_rename_error_message(errno), fname);
3741 from_filename = cf->filename;
3744 /* It's a permanent file, so we should copy it, and not remove the
3747 from_filename = cf->filename;
3751 /* Copy the file, if we haven't moved it. */
3752 if (!copy_file_binary_mode(from_filename, fname))
3756 /* Either we're filtering packets, or we're saving in a different
3757 format; we can't do that by copying or moving the capture file,
3758 we have to do it by writing the packets out in Wiretap. */
3759 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3762 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3766 /* XXX - we let the user save a subset of the packets.
3768 If we do that, should we make that file the current file? If so,
3769 it means we can no longer get at the other packets. What does
3772 /* Iterate through the list of packets, processing the packets we were
3775 XXX - we've already called "packet_range_process_init(range)", but
3776 "process_specified_packets()" will do it again. Fortunately,
3777 that's harmless in this case, as we haven't done anything to
3778 "range" since we initialized it. */
3779 callback_args.pdh = pdh;
3780 callback_args.fname = fname;
3781 callback_args.file_type = save_format;
3782 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3783 TRUE, save_packet, &callback_args)) {
3786 /* Completed successfully. */
3790 /* The user decided to abort the saving.
3791 XXX - remove the output file? */
3795 /* Error while saving. */
3796 wtap_dump_close(pdh, &err);
3800 if (!wtap_dump_close(pdh, &err)) {
3801 cf_close_failure_alert_box(fname, err);
3806 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3808 if (packet_range_process_all(range)) {
3809 /* We saved the entire capture, not just some packets from it.
3810 Open and read the file we saved it to.
3812 XXX - this is somewhat of a waste; we already have the
3813 packets, all this gets us is updated file type information
3814 (which we could just stuff into "cf"), and having the new
3815 file be the one we have opened and from which we're reading
3816 the data, and it means we have to spend time opening and
3817 reading the file, which could be a significant amount of
3818 time if the file is large. */
3819 cf->user_saved = TRUE;
3821 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3822 /* XXX - report errors if this fails?
3823 What should we return if it fails or is aborted? */
3825 switch (cf_read(cf, TRUE)) {
3829 /* Just because we got an error, that doesn't mean we were unable
3830 to read any of the file; we handle what we could get from the
3834 case CF_READ_ABORTED:
3835 /* The user bailed out of re-reading the capture file; the
3836 capture file has been closed - just return (without
3837 changing any menu settings; "cf_close()" set them
3838 correctly for the "no capture file open" state). */
3841 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3847 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3852 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3853 gboolean for_writing, int file_type)
3856 /* Wiretap error. */
3859 case WTAP_ERR_NOT_REGULAR_FILE:
3860 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3861 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3865 case WTAP_ERR_RANDOM_OPEN_PIPE:
3866 /* Seen only when opening a capture file for reading. */
3867 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3868 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3872 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3873 /* Seen only when opening a capture file for reading. */
3874 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3875 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3879 case WTAP_ERR_UNSUPPORTED:
3880 /* Seen only when opening a capture file for reading. */
3881 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3882 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3884 filename, err_info);
3888 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3889 /* Seen only when opening a capture file for writing. */
3890 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3891 "The file \"%s\" is a pipe, and %s capture files can't be "
3892 "written to a pipe.",
3893 filename, wtap_file_type_string(file_type));
3896 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3897 /* Seen only when opening a capture file for writing. */
3898 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3899 "Wireshark doesn't support writing capture files in that format.");
3902 case WTAP_ERR_UNSUPPORTED_ENCAP:
3904 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3905 "Wireshark can't save this capture in that format.");
3907 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3908 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3910 filename, err_info);
3915 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3917 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3918 "Wireshark can't save this capture in that format.");
3920 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3921 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3926 case WTAP_ERR_BAD_FILE:
3927 /* Seen only when opening a capture file for reading. */
3928 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3929 "The file \"%s\" appears to be damaged or corrupt.\n"
3931 filename, err_info);
3935 case WTAP_ERR_CANT_OPEN:
3937 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3938 "The file \"%s\" could not be created for some unknown reason.",
3941 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3942 "The file \"%s\" could not be opened for some unknown reason.",
3947 case WTAP_ERR_SHORT_READ:
3948 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3949 "The file \"%s\" appears to have been cut short"
3950 " in the middle of a packet or other data.",
3954 case WTAP_ERR_SHORT_WRITE:
3955 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3956 "A full header couldn't be written to the file \"%s\".",
3960 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3961 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3962 "Gzip compression not supported by this file type.");
3965 case WTAP_ERR_DECOMPRESS:
3966 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3967 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
3968 "(%s)", filename, err_info);
3973 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3974 "The file \"%s\" could not be %s: %s.",
3976 for_writing ? "created" : "opened",
3977 wtap_strerror(err));
3982 open_failure_alert_box(filename, err, for_writing);
3987 file_rename_error_message(int err)
3990 static char errmsg_errno[1024+1];
3995 errmsg = "The path to the file \"%s\" doesn't exist.";
3999 errmsg = "You don't have permission to move the capture file to \"%s\".";
4003 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4004 "The file \"%%s\" could not be moved: %s.",
4005 wtap_strerror(err));
4006 errmsg = errmsg_errno;
4012 /* Check for write errors - if the file is being written to an NFS server,
4013 a write error may not show up until the file is closed, as NFS clients
4014 might not send writes to the server until the "write()" call finishes,
4015 so that the write may fail on the server but the "write()" may succeed. */
4017 cf_close_failure_alert_box(const char *filename, int err)
4020 /* Wiretap error. */
4023 case WTAP_ERR_CANT_CLOSE:
4024 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4025 "The file \"%s\" couldn't be closed for some unknown reason.",
4029 case WTAP_ERR_SHORT_WRITE:
4030 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4031 "Not all the packets could be written to the file \"%s\".",
4036 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4037 "An error occurred while closing the file \"%s\": %s.",
4038 filename, wtap_strerror(err));
4043 We assume that a close error from the OS is really a write error. */
4044 write_failure_alert_box(filename, err);
4048 /* Reload the current capture file. */
4050 cf_reload(capture_file *cf) {
4052 gboolean is_tempfile;
4055 /* If the file could be opened, "cf_open()" calls "cf_close()"
4056 to get rid of state for the old capture file before filling in state
4057 for the new capture file. "cf_close()" will remove the file if
4058 it's a temporary file; we don't want that to happen (for one thing,
4059 it'd prevent subsequent reopens from working). Remember whether it's
4060 a temporary file, mark it as not being a temporary file, and then
4061 reopen it as the type of file it was.
4063 Also, "cf_close()" will free "cf->filename", so we must make
4064 a copy of it first. */
4065 filename = g_strdup(cf->filename);
4066 is_tempfile = cf->is_tempfile;
4067 cf->is_tempfile = FALSE;
4068 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4069 switch (cf_read(cf, FALSE)) {
4073 /* Just because we got an error, that doesn't mean we were unable
4074 to read any of the file; we handle what we could get from the
4078 case CF_READ_ABORTED:
4079 /* The user bailed out of re-reading the capture file; the
4080 capture file has been closed - just free the capture file name
4081 string and return (without changing the last containing
4087 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4088 Instead, the file was left open, so we should restore "cf->is_tempfile"
4091 XXX - change the menu? Presumably "cf_open()" will do that;
4092 make sure it does! */
4093 cf->is_tempfile = is_tempfile;
4095 /* "cf_open()" made a copy of the file name we handed it, so
4096 we should free up our copy. */
4106 * indent-tabs-mode: nil
4109 * ex: set shiftwidth=2 tabstop=8 expandtab:
4110 * :indentSize=2:tabSize=8:noTabs=true: