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_RECORD:
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) {
1294 got_read_error = TRUE;
1298 /* Get the sum of the data offsets in all of the files. */
1300 for (i = 0; i < in_file_count; i++)
1301 data_offset += in_files[i].data_offset;
1303 /* Create the progress bar if necessary.
1304 We check on every iteration of the loop, so that it takes no
1305 longer than the standard time to create it (otherwise, for a
1306 large file, we might take considerably longer than that standard
1307 time in order to get to the next progress bar step). */
1308 if (progbar == NULL) {
1309 progbar = delayed_create_progress_dlg("Merging", "files",
1310 FALSE, &stop_flag, &start_time, progbar_val);
1313 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1314 when we update it, we have to run the GTK+ main loop to get it
1315 to repaint what's pending, and doing so may involve an "ioctl()"
1316 to see if there's any pending input from an X server, and doing
1317 that for every packet can be costly, especially on a big file. */
1318 if (data_offset >= progbar_nextstep) {
1319 /* Get the sum of the seek positions in all of the files. */
1321 for (i = 0; i < in_file_count; i++)
1322 file_pos += wtap_read_so_far(in_files[i].wth);
1323 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1324 if (progbar_val > 1.0f) {
1325 /* Some file probably grew while we were reading it.
1326 That "shouldn't happen", so we'll just clip the progress
1330 if (progbar != NULL) {
1331 g_snprintf(status_str, sizeof(status_str),
1332 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1333 file_pos / 1024, f_len / 1024);
1334 update_progress_dlg(progbar, progbar_val, status_str);
1336 progbar_nextstep += progbar_quantum;
1340 /* Well, the user decided to abort the merge. */
1344 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1345 wtap_buf_ptr(in_file->wth), &write_err)) {
1346 got_write_error = TRUE;
1351 /* We're done merging the files; destroy the progress bar if it was created. */
1352 if (progbar != NULL)
1353 destroy_progress_dlg(progbar);
1355 merge_close_in_files(in_file_count, in_files);
1356 if (!got_read_error && !got_write_error) {
1357 if (!wtap_dump_close(pdh, &write_err))
1358 got_write_error = TRUE;
1360 wtap_dump_close(pdh, &close_err);
1362 if (got_read_error) {
1364 * Find the file on which we got the error, and report the error.
1366 for (i = 0; i < in_file_count; i++) {
1367 if (in_files[i].state == GOT_ERROR) {
1368 /* Put up a message box noting that a read failed somewhere along
1372 case WTAP_ERR_UNSUPPORTED_ENCAP:
1373 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1374 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1377 errmsg = errmsg_errno;
1380 case WTAP_ERR_CANT_READ:
1381 errmsg = "An attempt to read from the capture file %s failed for"
1382 " some unknown reason.";
1385 case WTAP_ERR_SHORT_READ:
1386 errmsg = "The capture file %s appears to have been cut short"
1387 " in the middle of a packet.";
1390 case WTAP_ERR_BAD_RECORD:
1391 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1392 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1395 errmsg = errmsg_errno;
1398 case WTAP_ERR_DECOMPRESS:
1399 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1400 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1403 errmsg = errmsg_errno;
1407 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1408 "An error occurred while reading the"
1409 " capture file %%s: %s.", wtap_strerror(read_err));
1410 errmsg = errmsg_errno;
1413 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1418 if (got_write_error) {
1419 /* Put up an alert box for the write error. */
1420 if (write_err < 0) {
1421 /* Wiretap error. */
1422 switch (write_err) {
1424 case WTAP_ERR_UNSUPPORTED_ENCAP:
1426 * This is a problem with the particular frame we're writing;
1427 * note that, and give the frame number.
1429 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1430 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1431 in_file->packet_num, in_file->filename,
1432 wtap_file_type_string(file_type));
1436 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1437 "An error occurred while writing to the file \"%s\": %s.",
1438 out_filename, wtap_strerror(write_err));
1443 write_failure_alert_box(out_filename, write_err);
1447 if (got_read_error || got_write_error || stop_flag) {
1448 /* Callers aren't expected to treat an error or an explicit abort
1449 differently - we put up error dialogs ourselves, so they don't
1457 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1459 const char *filter_new = dftext ? dftext : "";
1460 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1462 GTimeVal start_time;
1464 /* if new filter equals old one, do nothing unless told to do so */
1465 if (!force && strcmp(filter_new, filter_old) == 0) {
1471 if (dftext == NULL) {
1472 /* The new filter is an empty filter (i.e., display all packets).
1473 * so leave dfcode==NULL
1477 * We have a filter; make a copy of it (as we'll be saving it),
1478 * and try to compile it.
1480 dftext = g_strdup(dftext);
1481 if (!dfilter_compile(dftext, &dfcode)) {
1482 /* The attempt failed; report an error. */
1483 gchar *safe_dftext = simple_dialog_format_message(dftext);
1484 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1486 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1489 "The following display filter isn't a valid display filter:\n%s\n"
1490 "See the help for a description of the display filter syntax.",
1491 simple_dialog_primary_start(), safe_dfilter_error_msg,
1492 simple_dialog_primary_end(), safe_dftext);
1493 g_free(safe_dfilter_error_msg);
1494 g_free(safe_dftext);
1500 if (dfcode == NULL) {
1501 /* Yes - free the filter text, and set it to null. */
1507 /* We have a valid filter. Replace the current filter. */
1508 g_free(cf->dfilter);
1509 cf->dfilter = dftext;
1510 g_get_current_time(&start_time);
1513 /* Now rescan the packet list, applying the new filter, but not
1514 throwing away information constructed on a previous pass. */
1515 if (dftext == NULL) {
1516 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1518 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1521 /* Cleanup and release all dfilter resources */
1522 dfilter_free(dfcode);
1528 cf_reftime_packets(capture_file *cf)
1531 ref_time_packets(cf);
1535 cf_redissect_packets(capture_file *cf)
1537 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1541 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1542 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1546 char errmsg_errno[1024+1];
1548 #ifdef WANT_PACKET_EDITOR
1549 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1550 if (G_UNLIKELY(fdata->file_off == -1)) {
1551 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1554 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "fdata->file_off == -1, but can't find modified frame!");
1558 *pseudo_header = frame->ph;
1559 memcpy(pd, frame->pd, fdata->cap_len);
1564 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1565 fdata->cap_len, &err, &err_info)) {
1568 case WTAP_ERR_UNSUPPORTED_ENCAP:
1569 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1570 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1575 case WTAP_ERR_BAD_RECORD:
1576 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1577 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1578 wtap_strerror(err), err_info);
1583 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1584 "An error occurred while reading from the file \"%%s\": %s.",
1585 wtap_strerror(err));
1588 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1595 cf_read_frame(capture_file *cf, frame_data *fdata)
1597 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1600 /* Rescan the list of packets, reconstructing the CList.
1602 "action" describes why we're doing this; it's used in the progress
1605 "action_item" describes what we're doing; it's used in the progress
1608 "refilter" is TRUE if we need to re-evaluate the filter expression.
1610 "redissect" is TRUE if we need to make the dissectors reconstruct
1611 any state information they have (because a preference that affects
1612 some dissector has changed, meaning some dissector might construct
1613 its state differently from the way it was constructed the last time). */
1615 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1616 gboolean refilter, gboolean redissect)
1618 /* Rescan packets new packet list */
1621 progdlg_t *progbar = NULL;
1624 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1625 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1626 gboolean selected_frame_seen;
1628 GTimeVal start_time;
1629 gchar status_str[100];
1630 int progbar_nextstep;
1631 int progbar_quantum;
1633 gboolean filtering_tap_listeners;
1635 gboolean add_to_packet_list = FALSE;
1638 /* Compile the current display filter.
1639 * We assume this will not fail since cf->dfilter is only set in
1640 * cf_filter IFF the filter was valid.
1642 compiled = dfilter_compile(cf->dfilter, &dfcode);
1643 g_assert(!cf->dfilter || (compiled && dfcode));
1645 /* Do we have any tap listeners with filters? */
1646 filtering_tap_listeners = have_filtering_tap_listeners();
1648 /* Get the union of the flags for all tap listeners. */
1649 tap_flags = union_of_tap_listener_flags();
1651 reset_tap_listeners();
1652 /* Which frame, if any, is the currently selected frame?
1653 XXX - should the selected frame or the focus frame be the "current"
1654 frame, that frame being the one from which "Find Frame" searches
1656 selected_frame = cf->current_frame;
1658 /* Mark frame num as not found */
1659 selected_frame_num = -1;
1661 /* Freeze the packet list while we redo it, so we don't get any
1662 screen updates while it happens. */
1663 new_packet_list_freeze();
1666 /* We need to re-initialize all the state information that protocols
1667 keep, because some preference that controls a dissector has changed,
1668 which might cause the state information to be constructed differently
1669 by that dissector. */
1671 /* We might receive new packets while redissecting, and we don't
1672 want to dissect those before their time. */
1673 cf->redissecting = TRUE;
1675 /* Cleanup all data structures used for dissection. */
1676 cleanup_dissection();
1677 /* Initialize all data structures used for dissection. */
1680 /* We need to redissect the packets so we have to discard our old
1681 * packet list store. */
1682 new_packet_list_clear();
1683 add_to_packet_list = TRUE;
1686 /* We don't yet know which will be the first and last frames displayed. */
1687 cf->first_displayed = 0;
1688 cf->last_displayed = 0;
1690 /* We currently don't display any packets */
1691 cf->displayed_count = 0;
1693 /* Iterate through the list of frames. Call a routine for each frame
1694 to check whether it should be displayed and, if so, add it to
1695 the display list. */
1696 nstime_set_unset(&first_ts);
1697 nstime_set_unset(&prev_dis_ts);
1698 nstime_set_unset(&prev_cap_ts);
1701 /* Update the progress bar when it gets to this value. */
1702 progbar_nextstep = 0;
1703 /* When we reach the value that triggers a progress bar update,
1704 bump that value by this amount. */
1705 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1706 /* Count of packets at which we've looked. */
1708 /* Progress so far. */
1712 g_get_current_time(&start_time);
1714 /* no previous row yet */
1715 prev_frame_num = -1;
1718 preceding_frame_num = -1;
1719 preceding_frame = NULL;
1720 following_frame_num = -1;
1721 following_frame = NULL;
1723 selected_frame_seen = FALSE;
1725 for (framenum = 1; framenum <= cf->count; framenum++) {
1726 fdata = frame_data_sequence_find(cf->frames, framenum);
1728 /* Create the progress bar if necessary.
1729 We check on every iteration of the loop, so that it takes no
1730 longer than the standard time to create it (otherwise, for a
1731 large file, we might take considerably longer than that standard
1732 time in order to get to the next progress bar step). */
1733 if (progbar == NULL)
1734 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1735 &stop_flag, &start_time,
1738 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1739 when we update it, we have to run the GTK+ main loop to get it
1740 to repaint what's pending, and doing so may involve an "ioctl()"
1741 to see if there's any pending input from an X server, and doing
1742 that for every packet can be costly, especially on a big file. */
1743 if (count >= progbar_nextstep) {
1744 /* let's not divide by zero. I should never be started
1745 * with count == 0, so let's assert that
1747 g_assert(cf->count > 0);
1748 progbar_val = (gfloat) count / cf->count;
1750 if (progbar != NULL) {
1751 g_snprintf(status_str, sizeof(status_str),
1752 "%4u of %u frames", count, cf->count);
1753 update_progress_dlg(progbar, progbar_val, status_str);
1756 progbar_nextstep += progbar_quantum;
1760 /* Well, the user decided to abort the filtering. Just stop.
1762 XXX - go back to the previous filter? Users probably just
1763 want not to wait for a filtering operation to finish;
1764 unless we cancel by having no filter, reverting to the
1765 previous filter will probably be even more expensive than
1766 continuing the filtering, as it involves going back to the
1767 beginning and filtering, and even with no filter we currently
1768 have to re-generate the entire clist, which is also expensive.
1770 I'm not sure what Network Monitor does, but it doesn't appear
1771 to give you an unfiltered display if you cancel. */
1778 /* Since all state for the frame was destroyed, mark the frame
1779 * as not visited, free the GSList referring to the state
1780 * data (the per-frame data itself was freed by
1781 * "init_dissection()"), and null out the GSList pointer. */
1782 fdata->flags.visited = 0;
1783 frame_data_cleanup(fdata);
1786 if (!cf_read_frame(cf, fdata))
1787 break; /* error reading the frame */
1789 /* If the previous frame is displayed, and we haven't yet seen the
1790 selected frame, remember that frame - it's the closest one we've
1791 yet seen before the selected frame. */
1792 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1793 preceding_frame_num = prev_frame_num;
1794 preceding_frame = prev_frame;
1796 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1797 tap_flags, &cf->pseudo_header, cf->pd,
1799 add_to_packet_list);
1801 /* If this frame is displayed, and this is the first frame we've
1802 seen displayed after the selected frame, remember this frame -
1803 it's the closest one we've yet seen at or after the selected
1805 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1806 following_frame_num = fdata->num;
1807 following_frame = fdata;
1809 if (fdata == selected_frame) {
1810 selected_frame_seen = TRUE;
1811 if (fdata->flags.passed_dfilter)
1812 selected_frame_num = fdata->num;
1815 /* Remember this frame - it'll be the previous frame
1816 on the next pass through the loop. */
1817 prev_frame_num = fdata->num;
1821 /* We are done redissecting the packet list. */
1822 cf->redissecting = FALSE;
1825 /* Clear out what remains of the visited flags and per-frame data
1828 XXX - that may cause various forms of bogosity when dissecting
1829 these frames, as they won't have been seen by this sequential
1830 pass, but the only alternative I see is to keep scanning them
1831 even though the user requested that the scan stop, and that
1832 would leave the user stuck with an Wireshark grinding on
1833 until it finishes. Should we just stick them with that? */
1834 for (; framenum <= cf->count; framenum++) {
1835 fdata = frame_data_sequence_find(cf->frames, framenum);
1836 fdata->flags.visited = 0;
1837 frame_data_cleanup(fdata);
1841 /* We're done filtering the packets; destroy the progress bar if it
1843 if (progbar != NULL)
1844 destroy_progress_dlg(progbar);
1846 /* Unfreeze the packet list. */
1847 if (!add_to_packet_list)
1848 new_packet_list_recreate_visible_rows();
1850 /* Compute the time it took to filter the file */
1851 compute_elapsed(&start_time);
1853 new_packet_list_thaw();
1855 if (selected_frame_num == -1) {
1856 /* The selected frame didn't pass the filter. */
1857 if (selected_frame == NULL) {
1858 /* That's because there *was* no selected frame. Make the first
1859 displayed frame the current frame. */
1860 selected_frame_num = 0;
1862 /* Find the nearest displayed frame to the selected frame (whether
1863 it's before or after that frame) and make that the current frame.
1864 If the next and previous displayed frames are equidistant from the
1865 selected frame, choose the next one. */
1866 g_assert(following_frame == NULL ||
1867 following_frame->num >= selected_frame->num);
1868 g_assert(preceding_frame == NULL ||
1869 preceding_frame->num <= selected_frame->num);
1870 if (following_frame == NULL) {
1871 /* No frame after the selected frame passed the filter, so we
1872 have to select the last displayed frame before the selected
1874 selected_frame_num = preceding_frame_num;
1875 selected_frame = preceding_frame;
1876 } else if (preceding_frame == NULL) {
1877 /* No frame before the selected frame passed the filter, so we
1878 have to select the first displayed frame after the selected
1880 selected_frame_num = following_frame_num;
1881 selected_frame = following_frame;
1883 /* Frames before and after the selected frame passed the filter, so
1884 we'll select the previous frame */
1885 selected_frame_num = preceding_frame_num;
1886 selected_frame = preceding_frame;
1891 if (selected_frame_num == -1) {
1892 /* There are no frames displayed at all. */
1893 cf_unselect_packet(cf);
1895 /* Either the frame that was selected passed the filter, or we've
1896 found the nearest displayed frame to that frame. Select it, make
1897 it the focus row, and make it visible. */
1898 /* Set to invalid to force update of packet list and packet details */
1899 cf->current_row = -1;
1900 if (selected_frame_num == 0) {
1901 new_packet_list_select_first_row();
1903 if (!new_packet_list_select_row_from_data(selected_frame)) {
1904 /* We didn't find a row corresponding to this frame.
1905 This means that the frame isn't being displayed currently,
1906 so we can't select it. */
1907 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1908 "%sEnd of capture exceeded!%s\n\n"
1909 "The capture file is probably not fully dissected.",
1910 simple_dialog_primary_start(), simple_dialog_primary_end());
1915 /* Cleanup and release all dfilter resources */
1916 dfilter_free(dfcode);
1921 * Scan trough all frame data and recalculate the ref time
1922 * without rereading the file.
1923 * XXX - do we need a progres bar or is this fast enough?
1926 ref_time_packets(capture_file *cf)
1931 nstime_set_unset(&first_ts);
1932 nstime_set_unset(&prev_dis_ts);
1935 for (framenum = 1; framenum <= cf->count; framenum++) {
1936 fdata = frame_data_sequence_find(cf->frames, framenum);
1938 /* just add some value here until we know if it is being displayed or not */
1939 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1945 /* If we don't have the time stamp of the first packet in the
1946 capture, it's because this is the first packet. Save the time
1947 stamp of this packet as the time stamp of the first packet. */
1948 if (nstime_is_unset(&first_ts)) {
1949 first_ts = fdata->abs_ts;
1951 /* if this frames is marked as a reference time frame, reset
1952 firstsec and firstusec to this frame */
1953 if(fdata->flags.ref_time){
1954 first_ts = fdata->abs_ts;
1957 /* If we don't have the time stamp of the previous displayed packet,
1958 it's because this is the first displayed packet. Save the time
1959 stamp of this packet as the time stamp of the previous displayed
1961 if (nstime_is_unset(&prev_dis_ts)) {
1962 prev_dis_ts = fdata->abs_ts;
1965 /* Get the time elapsed between the first packet and this packet. */
1966 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1968 /* If it's greater than the current elapsed time, set the elapsed time
1969 to it (we check for "greater than" so as not to be confused by
1970 time moving backwards). */
1971 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1972 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1973 cf->elapsed_time = fdata->rel_ts;
1976 /* Get the time elapsed between the previous displayed packet and
1978 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1980 prev_dis_ts = fdata->abs_ts;
1985 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
1986 /* This frame either passed the display filter list or is marked as
1987 a time reference frame. All time reference frames are displayed
1988 even if they dont pass the display filter */
1989 if(fdata->flags.ref_time){
1990 /* if this was a TIME REF frame we should reset the cum_bytes field */
1991 cum_bytes = fdata->pkt_len;
1992 fdata->cum_bytes = cum_bytes;
1994 /* increase cum_bytes with this packets length */
1995 cum_bytes += fdata->pkt_len;
2008 process_specified_packets(capture_file *cf, packet_range_t *range,
2009 const char *string1, const char *string2, gboolean terminate_is_stop,
2010 gboolean (*callback)(capture_file *, frame_data *,
2011 union wtap_pseudo_header *, const guint8 *, void *),
2012 void *callback_args)
2016 union wtap_pseudo_header pseudo_header;
2017 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2018 psp_return_t ret = PSP_FINISHED;
2020 progdlg_t *progbar = NULL;
2023 gboolean progbar_stop_flag;
2024 GTimeVal progbar_start_time;
2025 gchar progbar_status_str[100];
2026 int progbar_nextstep;
2027 int progbar_quantum;
2028 range_process_e process_this;
2030 /* Update the progress bar when it gets to this value. */
2031 progbar_nextstep = 0;
2032 /* When we reach the value that triggers a progress bar update,
2033 bump that value by this amount. */
2034 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2035 /* Count of packets at which we've looked. */
2037 /* Progress so far. */
2040 progbar_stop_flag = FALSE;
2041 g_get_current_time(&progbar_start_time);
2043 packet_range_process_init(range);
2045 /* Iterate through all the packets, printing the packets that
2046 were selected by the current display filter. */
2047 for (framenum = 1; framenum <= cf->count; framenum++) {
2048 fdata = frame_data_sequence_find(cf->frames, framenum);
2050 /* Create the progress bar if necessary.
2051 We check on every iteration of the loop, so that it takes no
2052 longer than the standard time to create it (otherwise, for a
2053 large file, we might take considerably longer than that standard
2054 time in order to get to the next progress bar step). */
2055 if (progbar == NULL)
2056 progbar = delayed_create_progress_dlg(string1, string2,
2059 &progbar_start_time,
2062 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2063 when we update it, we have to run the GTK+ main loop to get it
2064 to repaint what's pending, and doing so may involve an "ioctl()"
2065 to see if there's any pending input from an X server, and doing
2066 that for every packet can be costly, especially on a big file. */
2067 if (progbar_count >= progbar_nextstep) {
2068 /* let's not divide by zero. I should never be started
2069 * with count == 0, so let's assert that
2071 g_assert(cf->count > 0);
2072 progbar_val = (gfloat) progbar_count / cf->count;
2074 if (progbar != NULL) {
2075 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2076 "%4u of %u packets", progbar_count, cf->count);
2077 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2080 progbar_nextstep += progbar_quantum;
2083 if (progbar_stop_flag) {
2084 /* Well, the user decided to abort the operation. Just stop,
2085 and arrange to return PSP_STOPPED to our caller, so they know
2086 it was stopped explicitly. */
2093 /* do we have to process this packet? */
2094 process_this = packet_range_process_packet(range, fdata);
2095 if (process_this == range_process_next) {
2096 /* this packet uninteresting, continue with next one */
2098 } else if (process_this == range_processing_finished) {
2099 /* all interesting packets processed, stop the loop */
2103 /* Get the packet */
2104 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2105 /* Attempt to get the packet failed. */
2109 /* Process the packet */
2110 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2111 /* Callback failed. We assume it reported the error appropriately. */
2117 /* We're done printing the packets; destroy the progress bar if
2119 if (progbar != NULL)
2120 destroy_progress_dlg(progbar);
2126 gboolean construct_protocol_tree;
2128 } retap_callback_args_t;
2131 retap_packet(capture_file *cf _U_, frame_data *fdata,
2132 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2135 retap_callback_args_t *args = argsp;
2138 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2139 tap_queue_init(&edt);
2140 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2141 tap_push_tapped_queue(&edt);
2142 epan_dissect_cleanup(&edt);
2148 cf_retap_packets(capture_file *cf)
2150 packet_range_t range;
2151 retap_callback_args_t callback_args;
2152 gboolean filtering_tap_listeners;
2155 /* Do we have any tap listeners with filters? */
2156 filtering_tap_listeners = have_filtering_tap_listeners();
2158 tap_flags = union_of_tap_listener_flags();
2160 /* If any tap listeners have filters, or require the protocol tree,
2161 construct the protocol tree. */
2162 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2163 (tap_flags & TL_REQUIRES_PROTO_TREE);
2165 /* If any tap listeners require the columns, construct them. */
2166 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2168 /* Reset the tap listeners. */
2169 reset_tap_listeners();
2171 /* Iterate through the list of packets, dissecting all packets and
2172 re-running the taps. */
2173 packet_range_init(&range);
2174 packet_range_process_init(&range);
2175 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2176 "all packets", TRUE, retap_packet,
2179 /* Completed successfully. */
2183 /* Well, the user decided to abort the refiltering.
2184 Return CF_READ_ABORTED so our caller knows they did that. */
2185 return CF_READ_ABORTED;
2188 /* Error while retapping. */
2189 return CF_READ_ERROR;
2192 g_assert_not_reached();
2197 print_args_t *print_args;
2198 gboolean print_header_line;
2199 char *header_line_buf;
2200 int header_line_buf_len;
2201 gboolean print_formfeed;
2202 gboolean print_separator;
2206 } print_callback_args_t;
2209 print_packet(capture_file *cf, frame_data *fdata,
2210 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2213 print_callback_args_t *args = argsp;
2220 gboolean proto_tree_needed;
2221 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2222 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2224 /* Create the protocol tree, and make it visible, if we're printing
2225 the dissection or the hex data.
2226 XXX - do we need it if we're just printing the hex data? */
2228 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2229 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2231 /* Fill in the column information if we're printing the summary
2233 if (args->print_args->print_summary) {
2234 col_custom_prime_edt(&edt, &cf->cinfo);
2235 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2236 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2238 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2240 if (args->print_formfeed) {
2241 if (!new_page(args->print_args->stream))
2244 if (args->print_separator) {
2245 if (!print_line(args->print_args->stream, 0, ""))
2251 * We generate bookmarks, if the output format supports them.
2252 * The name is "__frameN__".
2254 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2256 if (args->print_args->print_summary) {
2257 if (args->print_header_line) {
2258 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2260 args->print_header_line = FALSE; /* we might not need to print any more */
2262 cp = &args->line_buf[0];
2264 for (i = 0; i < cf->cinfo.num_cols; i++) {
2265 /* Find the length of the string for this column. */
2266 column_len = (int) strlen(cf->cinfo.col_data[i]);
2267 if (args->col_widths[i] > column_len)
2268 column_len = args->col_widths[i];
2270 /* Make sure there's room in the line buffer for the column; if not,
2271 double its length. */
2272 line_len += column_len + 1; /* "+1" for space */
2273 if (line_len > args->line_buf_len) {
2274 cp_off = (int) (cp - args->line_buf);
2275 args->line_buf_len = 2 * line_len;
2276 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2277 cp = args->line_buf + cp_off;
2280 /* Right-justify the packet number column. */
2281 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2282 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2284 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2286 if (i != cf->cinfo.num_cols - 1)
2292 * Generate a bookmark, using the summary line as the title.
2294 if (!print_bookmark(args->print_args->stream, bookmark_name,
2298 if (!print_line(args->print_args->stream, 0, args->line_buf))
2302 * Generate a bookmark, using "Frame N" as the title, as we're not
2303 * printing the summary line.
2305 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2306 if (!print_bookmark(args->print_args->stream, bookmark_name,
2309 } /* if (print_summary) */
2311 if (args->print_args->print_dissections != print_dissections_none) {
2312 if (args->print_args->print_summary) {
2313 /* Separate the summary line from the tree with a blank line. */
2314 if (!print_line(args->print_args->stream, 0, ""))
2318 /* Print the information in that tree. */
2319 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2322 /* Print a blank line if we print anything after this (aka more than one packet). */
2323 args->print_separator = TRUE;
2325 /* Print a header line if we print any more packet summaries */
2326 args->print_header_line = TRUE;
2329 if (args->print_args->print_hex) {
2330 /* Print the full packet data as hex. */
2331 if (!print_hex_data(args->print_args->stream, &edt))
2334 /* Print a blank line if we print anything after this (aka more than one packet). */
2335 args->print_separator = TRUE;
2337 /* Print a header line if we print any more packet summaries */
2338 args->print_header_line = TRUE;
2339 } /* if (args->print_args->print_dissections != print_dissections_none) */
2341 epan_dissect_cleanup(&edt);
2343 /* do we want to have a formfeed between each packet from now on? */
2344 if(args->print_args->print_formfeed) {
2345 args->print_formfeed = TRUE;
2351 epan_dissect_cleanup(&edt);
2356 cf_print_packets(capture_file *cf, print_args_t *print_args)
2359 print_callback_args_t callback_args;
2367 callback_args.print_args = print_args;
2368 callback_args.print_header_line = TRUE;
2369 callback_args.header_line_buf = NULL;
2370 callback_args.header_line_buf_len = 256;
2371 callback_args.print_formfeed = FALSE;
2372 callback_args.print_separator = FALSE;
2373 callback_args.line_buf = NULL;
2374 callback_args.line_buf_len = 256;
2375 callback_args.col_widths = NULL;
2377 if (!print_preamble(print_args->stream, cf->filename)) {
2378 destroy_print_stream(print_args->stream);
2379 return CF_PRINT_WRITE_ERROR;
2382 if (print_args->print_summary) {
2383 /* We're printing packet summaries. Allocate the header line buffer
2384 and get the column widths. */
2385 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2387 /* Find the widths for each of the columns - maximum of the
2388 width of the title and the width of the data - and construct
2389 a buffer with a line containing the column titles. */
2390 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2391 cp = &callback_args.header_line_buf[0];
2393 for (i = 0; i < cf->cinfo.num_cols; i++) {
2394 /* Don't pad the last column. */
2395 if (i == cf->cinfo.num_cols - 1)
2396 callback_args.col_widths[i] = 0;
2398 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2399 data_width = get_column_char_width(get_column_format(i));
2400 if (data_width > callback_args.col_widths[i])
2401 callback_args.col_widths[i] = data_width;
2404 /* Find the length of the string for this column. */
2405 column_len = (int) strlen(cf->cinfo.col_title[i]);
2406 if (callback_args.col_widths[i] > column_len)
2407 column_len = callback_args.col_widths[i];
2409 /* Make sure there's room in the line buffer for the column; if not,
2410 double its length. */
2411 line_len += column_len + 1; /* "+1" for space */
2412 if (line_len > callback_args.header_line_buf_len) {
2413 cp_off = (int) (cp - callback_args.header_line_buf);
2414 callback_args.header_line_buf_len = 2 * line_len;
2415 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2416 callback_args.header_line_buf_len + 1);
2417 cp = callback_args.header_line_buf + cp_off;
2420 /* Right-justify the packet number column. */
2421 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2422 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2424 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2426 if (i != cf->cinfo.num_cols - 1)
2431 /* Now start out the main line buffer with the same length as the
2432 header line buffer. */
2433 callback_args.line_buf_len = callback_args.header_line_buf_len;
2434 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2435 } /* if (print_summary) */
2437 /* Iterate through the list of packets, printing the packets we were
2439 ret = process_specified_packets(cf, &print_args->range, "Printing",
2440 "selected packets", TRUE, print_packet,
2443 g_free(callback_args.header_line_buf);
2444 g_free(callback_args.line_buf);
2445 g_free(callback_args.col_widths);
2450 /* Completed successfully. */
2454 /* Well, the user decided to abort the printing.
2456 XXX - note that what got generated before they did that
2457 will get printed if we're piping to a print program; we'd
2458 have to write to a file and then hand that to the print
2459 program to make it actually not print anything. */
2463 /* Error while printing.
2465 XXX - note that what got generated before they did that
2466 will get printed if we're piping to a print program; we'd
2467 have to write to a file and then hand that to the print
2468 program to make it actually not print anything. */
2469 destroy_print_stream(print_args->stream);
2470 return CF_PRINT_WRITE_ERROR;
2473 if (!print_finale(print_args->stream)) {
2474 destroy_print_stream(print_args->stream);
2475 return CF_PRINT_WRITE_ERROR;
2478 if (!destroy_print_stream(print_args->stream))
2479 return CF_PRINT_WRITE_ERROR;
2485 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2486 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2492 /* Create the protocol tree, but don't fill in the column information. */
2493 epan_dissect_init(&edt, TRUE, TRUE);
2494 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2496 /* Write out the information in that tree. */
2497 proto_tree_write_pdml(&edt, fh);
2499 epan_dissect_cleanup(&edt);
2505 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2510 fh = ws_fopen(print_args->file, "w");
2512 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2514 write_pdml_preamble(fh, cf->filename);
2517 return CF_PRINT_WRITE_ERROR;
2520 /* Iterate through the list of packets, printing the packets we were
2522 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2523 "selected packets", TRUE,
2524 write_pdml_packet, fh);
2529 /* Completed successfully. */
2533 /* Well, the user decided to abort the printing. */
2537 /* Error while printing. */
2539 return CF_PRINT_WRITE_ERROR;
2542 write_pdml_finale(fh);
2545 return CF_PRINT_WRITE_ERROR;
2548 /* XXX - check for an error */
2555 write_psml_packet(capture_file *cf, frame_data *fdata,
2556 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2561 gboolean proto_tree_needed;
2563 /* Fill in the column information, only create the protocol tree
2564 if having custom columns. */
2565 proto_tree_needed = have_custom_cols(&cf->cinfo);
2566 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2567 col_custom_prime_edt(&edt, &cf->cinfo);
2568 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2569 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2571 /* Write out the information in that tree. */
2572 proto_tree_write_psml(&edt, fh);
2574 epan_dissect_cleanup(&edt);
2580 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2585 fh = ws_fopen(print_args->file, "w");
2587 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2589 write_psml_preamble(fh);
2592 return CF_PRINT_WRITE_ERROR;
2595 /* Iterate through the list of packets, printing the packets we were
2597 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2598 "selected packets", TRUE,
2599 write_psml_packet, fh);
2604 /* Completed successfully. */
2608 /* Well, the user decided to abort the printing. */
2612 /* Error while printing. */
2614 return CF_PRINT_WRITE_ERROR;
2617 write_psml_finale(fh);
2620 return CF_PRINT_WRITE_ERROR;
2623 /* XXX - check for an error */
2630 write_csv_packet(capture_file *cf, frame_data *fdata,
2631 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2636 gboolean proto_tree_needed;
2638 /* Fill in the column information, only create the protocol tree
2639 if having custom columns. */
2640 proto_tree_needed = have_custom_cols(&cf->cinfo);
2641 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2642 col_custom_prime_edt(&edt, &cf->cinfo);
2643 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2644 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2646 /* Write out the information in that tree. */
2647 proto_tree_write_csv(&edt, fh);
2649 epan_dissect_cleanup(&edt);
2655 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2660 fh = ws_fopen(print_args->file, "w");
2662 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2664 write_csv_preamble(fh);
2667 return CF_PRINT_WRITE_ERROR;
2670 /* Iterate through the list of packets, printing the packets we were
2672 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2673 "selected packets", TRUE,
2674 write_csv_packet, fh);
2679 /* Completed successfully. */
2683 /* Well, the user decided to abort the printing. */
2687 /* Error while printing. */
2689 return CF_PRINT_WRITE_ERROR;
2692 write_csv_finale(fh);
2695 return CF_PRINT_WRITE_ERROR;
2698 /* XXX - check for an error */
2705 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2706 union wtap_pseudo_header *pseudo_header _U_,
2707 const guint8 *pd, void *argsp)
2711 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
2716 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2721 fh = ws_fopen(print_args->file, "w");
2724 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2726 write_carrays_preamble(fh);
2730 return CF_PRINT_WRITE_ERROR;
2733 /* Iterate through the list of packets, printing the packets we were
2735 ret = process_specified_packets(cf, &print_args->range,
2737 "selected packets", TRUE,
2738 write_carrays_packet, fh);
2741 /* Completed successfully. */
2744 /* Well, the user decided to abort the printing. */
2747 /* Error while printing. */
2749 return CF_PRINT_WRITE_ERROR;
2752 write_carrays_finale(fh);
2756 return CF_PRINT_WRITE_ERROR;
2764 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2765 search_direction dir)
2769 mdata.string = string;
2770 mdata.string_len = strlen(string);
2771 return find_packet(cf, match_protocol_tree, &mdata, dir);
2775 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2777 mdata->frame_matched = FALSE;
2778 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2779 mdata->string_len = strlen(mdata->string);
2781 /* Iterate through all the nodes looking for matching text */
2782 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2783 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2787 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2789 match_data *mdata = criterion;
2792 /* Load the frame's data. */
2793 if (!cf_read_frame(cf, fdata)) {
2794 /* Attempt to get the packet failed. */
2798 /* Construct the protocol tree, including the displayed text */
2799 epan_dissect_init(&edt, TRUE, TRUE);
2800 /* We don't need the column information */
2801 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2803 /* Iterate through all the nodes, seeing if they have text that matches. */
2805 mdata->frame_matched = FALSE;
2806 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2807 epan_dissect_cleanup(&edt);
2808 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2812 match_subtree_text(proto_node *node, gpointer data)
2814 match_data *mdata = (match_data*) data;
2815 const gchar *string = mdata->string;
2816 size_t string_len = mdata->string_len;
2817 capture_file *cf = mdata->cf;
2818 field_info *fi = PNODE_FINFO(node);
2819 gchar label_str[ITEM_LABEL_LENGTH];
2826 g_assert(fi && "dissection with an invisible proto tree?");
2828 if (mdata->frame_matched) {
2829 /* We already had a match; don't bother doing any more work. */
2833 /* Don't match invisible entries. */
2834 if (PROTO_ITEM_IS_HIDDEN(node))
2837 /* was a free format label produced? */
2839 label_ptr = fi->rep->representation;
2841 /* no, make a generic label */
2842 label_ptr = label_str;
2843 proto_item_fill_label(fi, label_str);
2846 /* Does that label match? */
2847 label_len = strlen(label_ptr);
2848 for (i = 0; i < label_len; i++) {
2849 c_char = label_ptr[i];
2851 c_char = toupper(c_char);
2852 if (c_char == string[c_match]) {
2854 if (c_match == string_len) {
2855 /* No need to look further; we have a match */
2856 mdata->frame_matched = TRUE;
2864 /* Recurse into the subtree, if it exists */
2865 if (node->first_child != NULL)
2866 proto_tree_children_foreach(node, match_subtree_text, mdata);
2870 cf_find_packet_summary_line(capture_file *cf, const char *string,
2871 search_direction dir)
2875 mdata.string = string;
2876 mdata.string_len = strlen(string);
2877 return find_packet(cf, match_summary_line, &mdata, dir);
2881 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2883 match_data *mdata = criterion;
2884 const gchar *string = mdata->string;
2885 size_t string_len = mdata->string_len;
2887 const char *info_column;
2888 size_t info_column_len;
2889 match_result result = MR_NOTMATCHED;
2895 /* Load the frame's data. */
2896 if (!cf_read_frame(cf, fdata)) {
2897 /* Attempt to get the packet failed. */
2901 /* Don't bother constructing the protocol tree */
2902 epan_dissect_init(&edt, FALSE, FALSE);
2903 /* Get the column information */
2904 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2906 /* Find the Info column */
2907 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2908 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2909 /* Found it. See if we match. */
2910 info_column = edt.pi.cinfo->col_data[colx];
2911 info_column_len = strlen(info_column);
2912 for (i = 0; i < info_column_len; i++) {
2913 c_char = info_column[i];
2915 c_char = toupper(c_char);
2916 if (c_char == string[c_match]) {
2918 if (c_match == string_len) {
2919 result = MR_MATCHED;
2928 epan_dissect_cleanup(&edt);
2935 } cbs_t; /* "Counted byte string" */
2938 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2939 search_direction dir)
2944 info.data_len = string_size;
2946 /* String or hex search? */
2948 /* String search - what type of string? */
2949 switch (cf->scs_type) {
2951 case SCS_ASCII_AND_UNICODE:
2952 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2955 return find_packet(cf, match_ascii, &info, dir);
2958 return find_packet(cf, match_unicode, &info, dir);
2961 g_assert_not_reached();
2965 return find_packet(cf, match_binary, &info, dir);
2969 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2971 cbs_t *info = criterion;
2972 const guint8 *ascii_text = info->data;
2973 size_t textlen = info->data_len;
2974 match_result result;
2980 /* Load the frame's data. */
2981 if (!cf_read_frame(cf, fdata)) {
2982 /* Attempt to get the packet failed. */
2986 result = MR_NOTMATCHED;
2987 buf_len = fdata->pkt_len;
2988 for (i = 0; i < buf_len; i++) {
2991 c_char = toupper(c_char);
2993 if (c_char == ascii_text[c_match]) {
2995 if (c_match == textlen) {
2996 result = MR_MATCHED;
2997 cf->search_pos = i; /* Save the position of the last character
2998 for highlighting the field. */
3009 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3011 cbs_t *info = criterion;
3012 const guint8 *ascii_text = info->data;
3013 size_t textlen = info->data_len;
3014 match_result result;
3020 /* Load the frame's data. */
3021 if (!cf_read_frame(cf, fdata)) {
3022 /* Attempt to get the packet failed. */
3026 result = MR_NOTMATCHED;
3027 buf_len = fdata->pkt_len;
3028 for (i = 0; i < buf_len; i++) {
3031 c_char = toupper(c_char);
3032 if (c_char == ascii_text[c_match]) {
3034 if (c_match == textlen) {
3035 result = MR_MATCHED;
3036 cf->search_pos = i; /* Save the position of the last character
3037 for highlighting the field. */
3047 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3049 cbs_t *info = criterion;
3050 const guint8 *ascii_text = info->data;
3051 size_t textlen = info->data_len;
3052 match_result result;
3058 /* Load the frame's data. */
3059 if (!cf_read_frame(cf, fdata)) {
3060 /* Attempt to get the packet failed. */
3064 result = MR_NOTMATCHED;
3065 buf_len = fdata->pkt_len;
3066 for (i = 0; i < buf_len; i++) {
3069 c_char = toupper(c_char);
3070 if (c_char == ascii_text[c_match]) {
3073 if (c_match == textlen) {
3074 result = MR_MATCHED;
3075 cf->search_pos = i; /* Save the position of the last character
3076 for highlighting the field. */
3086 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3088 cbs_t *info = criterion;
3089 const guint8 *binary_data = info->data;
3090 size_t datalen = info->data_len;
3091 match_result result;
3096 /* Load the frame's data. */
3097 if (!cf_read_frame(cf, fdata)) {
3098 /* Attempt to get the packet failed. */
3102 result = MR_NOTMATCHED;
3103 buf_len = fdata->pkt_len;
3104 for (i = 0; i < buf_len; i++) {
3105 if (cf->pd[i] == binary_data[c_match]) {
3107 if (c_match == datalen) {
3108 result = MR_MATCHED;
3109 cf->search_pos = i; /* Save the position of the last character
3110 for highlighting the field. */
3120 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3121 search_direction dir)
3123 return find_packet(cf, match_dfilter, sfcode, dir);
3127 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3128 search_direction dir)
3133 if (!dfilter_compile(filter, &sfcode)) {
3135 * XXX - this shouldn't happen, as the filter string is machine
3140 if (sfcode == NULL) {
3142 * XXX - this shouldn't happen, as the filter string is machine
3147 result = find_packet(cf, match_dfilter, sfcode, dir);
3148 dfilter_free(sfcode);
3153 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3155 dfilter_t *sfcode = criterion;
3157 match_result result;
3159 /* Load the frame's data. */
3160 if (!cf_read_frame(cf, fdata)) {
3161 /* Attempt to get the packet failed. */
3165 epan_dissect_init(&edt, TRUE, FALSE);
3166 epan_dissect_prime_dfilter(&edt, sfcode);
3167 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3168 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3169 epan_dissect_cleanup(&edt);
3174 cf_find_packet_marked(capture_file *cf, search_direction dir)
3176 return find_packet(cf, match_marked, NULL, dir);
3180 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3182 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3186 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3188 return find_packet(cf, match_time_reference, NULL, dir);
3192 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3194 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3198 find_packet(capture_file *cf,
3199 match_result (*match_function)(capture_file *, frame_data *, void *),
3200 void *criterion, search_direction dir)
3202 frame_data *start_fd;
3205 frame_data *new_fd = NULL;
3206 progdlg_t *progbar = NULL;
3211 GTimeVal start_time;
3212 gchar status_str[100];
3213 int progbar_nextstep;
3214 int progbar_quantum;
3216 match_result result;
3218 start_fd = cf->current_frame;
3219 if (start_fd != NULL) {
3220 /* Iterate through the list of packets, starting at the packet we've
3221 picked, calling a routine to run the filter on the packet, see if
3222 it matches, and stop if so. */
3224 framenum = start_fd->num;
3226 /* Update the progress bar when it gets to this value. */
3227 progbar_nextstep = 0;
3228 /* When we reach the value that triggers a progress bar update,
3229 bump that value by this amount. */
3230 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3231 /* Progress so far. */
3235 g_get_current_time(&start_time);
3237 title = cf->sfilter?cf->sfilter:"";
3239 /* Create the progress bar if necessary.
3240 We check on every iteration of the loop, so that it takes no
3241 longer than the standard time to create it (otherwise, for a
3242 large file, we might take considerably longer than that standard
3243 time in order to get to the next progress bar step). */
3244 if (progbar == NULL)
3245 progbar = delayed_create_progress_dlg("Searching", title,
3246 FALSE, &stop_flag, &start_time, progbar_val);
3248 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3249 when we update it, we have to run the GTK+ main loop to get it
3250 to repaint what's pending, and doing so may involve an "ioctl()"
3251 to see if there's any pending input from an X server, and doing
3252 that for every packet can be costly, especially on a big file. */
3253 if (count >= progbar_nextstep) {
3254 /* let's not divide by zero. I should never be started
3255 * with count == 0, so let's assert that
3257 g_assert(cf->count > 0);
3259 progbar_val = (gfloat) count / cf->count;
3261 if (progbar != NULL) {
3262 g_snprintf(status_str, sizeof(status_str),
3263 "%4u of %u packets", count, cf->count);
3264 update_progress_dlg(progbar, progbar_val, status_str);
3267 progbar_nextstep += progbar_quantum;
3271 /* Well, the user decided to abort the search. Go back to the
3272 frame where we started. */
3277 /* Go past the current frame. */
3278 if (dir == SD_BACKWARD) {
3279 /* Go on to the previous frame. */
3280 if (framenum == 1) {
3282 * XXX - other apps have a bit more of a detailed message
3283 * for this, and instead of offering "OK" and "Cancel",
3284 * they offer things such as "Continue" and "Cancel";
3285 * we need an API for popping up alert boxes with
3286 * {Verb} and "Cancel".
3289 if (prefs.gui_find_wrap)
3291 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3292 framenum = cf->count; /* wrap around */
3296 statusbar_push_temporary_msg("Search reached the beginning.");
3297 framenum = start_fd->num; /* stay on previous packet */
3302 /* Go on to the next frame. */
3303 if (framenum == cf->count) {
3304 if (prefs.gui_find_wrap)
3306 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3307 framenum = 1; /* wrap around */
3311 statusbar_push_temporary_msg("Search reached the end.");
3312 framenum = start_fd->num; /* stay on previous packet */
3317 fdata = frame_data_sequence_find(cf->frames, framenum);
3321 /* Is this packet in the display? */
3322 if (fdata->flags.passed_dfilter) {
3323 /* Yes. Does it match the search criterion? */
3324 result = (*match_function)(cf, fdata, criterion);
3325 if (result == MR_ERROR) {
3326 /* Error; our caller has reported the error. Go back to the frame
3327 where we started. */
3330 } else if (result == MR_MATCHED) {
3331 /* Yes. Go to the new frame. */
3337 if (fdata == start_fd) {
3338 /* We're back to the frame we were on originally, and that frame
3339 doesn't match the search filter. The search failed. */
3344 /* We're done scanning the packets; destroy the progress bar if it
3346 if (progbar != NULL)
3347 destroy_progress_dlg(progbar);
3350 if (new_fd != NULL) {
3351 /* Find and select */
3352 cf->search_in_progress = TRUE;
3353 found = new_packet_list_select_row_from_data(new_fd);
3354 cf->search_in_progress = FALSE;
3355 cf->search_pos = 0; /* Reset the position */
3357 /* We didn't find a row corresponding to this frame.
3358 This means that the frame isn't being displayed currently,
3359 so we can't select it. */
3360 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3361 "%sEnd of capture exceeded!%s\n\n"
3362 "The capture file is probably not fully dissected.",
3363 simple_dialog_primary_start(), simple_dialog_primary_end());
3366 return TRUE; /* success */
3368 return FALSE; /* failure */
3372 cf_goto_frame(capture_file *cf, guint fnumber)
3376 fdata = frame_data_sequence_find(cf->frames, fnumber);
3378 if (fdata == NULL) {
3379 /* we didn't find a packet with that packet number */
3380 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3381 return FALSE; /* we failed to go to that packet */
3383 if (!fdata->flags.passed_dfilter) {
3384 /* that packet currently isn't displayed */
3385 /* XXX - add it to the set of displayed packets? */
3386 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3387 return FALSE; /* we failed to go to that packet */
3390 if (!new_packet_list_select_row_from_data(fdata)) {
3391 /* We didn't find a row corresponding to this frame.
3392 This means that the frame isn't being displayed currently,
3393 so we can't select it. */
3394 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3395 "%sEnd of capture exceeded!%s\n\n"
3396 "The capture file is probably not fully dissected.",
3397 simple_dialog_primary_start(), simple_dialog_primary_end());
3400 return TRUE; /* we got to that packet */
3404 cf_goto_top_frame(void)
3406 /* Find and select */
3407 new_packet_list_select_first_row();
3408 return TRUE; /* we got to that packet */
3412 cf_goto_bottom_frame(void)
3414 /* Find and select */
3415 new_packet_list_select_last_row();
3416 return TRUE; /* we got to that packet */
3420 * Go to frame specified by currently selected protocol tree item.
3423 cf_goto_framenum(capture_file *cf)
3425 header_field_info *hfinfo;
3428 if (cf->finfo_selected) {
3429 hfinfo = cf->finfo_selected->hfinfo;
3431 if (hfinfo->type == FT_FRAMENUM) {
3432 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3434 return cf_goto_frame(cf, framenum);
3441 /* Select the packet on a given row. */
3443 cf_select_packet(capture_file *cf, int row)
3447 /* Get the frame data struct pointer for this frame */
3448 fdata = new_packet_list_get_row_data(row);
3450 if (fdata == NULL) {
3451 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3452 the first entry is added to it by "real_insert_row()", that row
3453 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3454 our version and the vanilla GTK+ version).
3456 This means that a "select-row" signal is emitted; this causes
3457 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3460 "cf_select_packet()" fetches, above, the data associated with the
3461 row that was selected; however, as "gtk_clist_append()", which
3462 called "real_insert_row()", hasn't yet returned, we haven't yet
3463 associated any data with that row, so we get back a null pointer.
3465 We can't assume that there's only one frame in the frame list,
3466 either, as we may be filtering the display.
3468 We therefore assume that, if "row" is 0, i.e. the first row
3469 is being selected, and "cf->first_displayed" equals
3470 "cf->last_displayed", i.e. there's only one frame being
3471 displayed, that frame is the frame we want.
3473 This means we have to set "cf->first_displayed" and
3474 "cf->last_displayed" before adding the row to the
3475 GtkCList; see the comment in "add_packet_to_packet_list()". */
3477 if (row == 0 && cf->first_displayed == cf->last_displayed)
3478 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3481 /* If fdata _still_ isn't set simply give up. */
3482 if (fdata == NULL) {
3486 /* Get the data in that frame. */
3487 if (!cf_read_frame (cf, fdata)) {
3491 /* Record that this frame is the current frame. */
3492 cf->current_frame = fdata;
3493 cf->current_row = row;
3495 /* Create the logical protocol tree. */
3496 if (cf->edt != NULL)
3497 epan_dissect_free(cf->edt);
3499 /* We don't need the columns here. */
3500 cf->edt = epan_dissect_new(TRUE, TRUE);
3502 tap_build_interesting(cf->edt);
3503 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3506 dfilter_macro_build_ftv_cache(cf->edt->tree);
3508 cf_callback_invoke(cf_cb_packet_selected, cf);
3511 /* Unselect the selected packet, if any. */
3513 cf_unselect_packet(capture_file *cf)
3515 /* Destroy the epan_dissect_t for the unselected packet. */
3516 if (cf->edt != NULL) {
3517 epan_dissect_free(cf->edt);
3521 /* No packet is selected. */
3522 cf->current_frame = NULL;
3523 cf->current_row = 0;
3525 cf_callback_invoke(cf_cb_packet_unselected, cf);
3527 /* No protocol tree means no selected field. */
3528 cf_unselect_field(cf);
3531 /* Unset the selected protocol tree field, if any. */
3533 cf_unselect_field(capture_file *cf)
3535 cf->finfo_selected = NULL;
3537 cf_callback_invoke(cf_cb_field_unselected, cf);
3541 * Mark a particular frame.
3544 cf_mark_frame(capture_file *cf, frame_data *frame)
3546 if (! frame->flags.marked) {
3547 frame->flags.marked = TRUE;
3548 if (cf->count > cf->marked_count)
3554 * Unmark a particular frame.
3557 cf_unmark_frame(capture_file *cf, frame_data *frame)
3559 if (frame->flags.marked) {
3560 frame->flags.marked = FALSE;
3561 if (cf->marked_count > 0)
3567 * Ignore a particular frame.
3570 cf_ignore_frame(capture_file *cf, frame_data *frame)
3572 if (! frame->flags.ignored) {
3573 frame->flags.ignored = TRUE;
3574 if (cf->count > cf->ignored_count)
3575 cf->ignored_count++;
3580 * Un-ignore a particular frame.
3583 cf_unignore_frame(capture_file *cf, frame_data *frame)
3585 if (frame->flags.ignored) {
3586 frame->flags.ignored = FALSE;
3587 if (cf->ignored_count > 0)
3588 cf->ignored_count--;
3596 } save_callback_args_t;
3599 * Save a capture to a file, in a particular format, saving either
3600 * all packets, all currently-displayed packets, or all marked packets.
3602 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3603 * up a message box for the failure.
3606 save_packet(capture_file *cf _U_, frame_data *fdata,
3607 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3610 save_callback_args_t *args = argsp;
3611 struct wtap_pkthdr hdr;
3614 /* init the wtap header for saving */
3615 hdr.ts.secs = fdata->abs_ts.secs;
3616 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3617 hdr.caplen = fdata->cap_len;
3618 hdr.len = fdata->pkt_len;
3619 hdr.pkt_encap = fdata->lnk_t;
3621 /* and save the packet */
3622 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3624 /* Wiretap error. */
3627 case WTAP_ERR_UNSUPPORTED_ENCAP:
3629 * This is a problem with the particular frame we're writing;
3630 * note that, and give the frame number.
3632 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3633 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3634 fdata->num, wtap_file_type_string(args->file_type));
3638 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3639 "An error occurred while writing to the file \"%s\": %s.",
3640 args->fname, wtap_strerror(err));
3645 write_failure_alert_box(args->fname, err);
3653 * Can this capture file be saved in any format except by copying the raw data?
3656 cf_can_save_as(capture_file *cf)
3660 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3661 /* To save a file with Wiretap, Wiretap has to handle that format,
3662 and its code to handle that format must be able to write a file
3663 with this file's encapsulation type. */
3664 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3665 /* OK, we can write it out in this type. */
3670 /* No, we couldn't save it in any format. */
3675 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3677 gchar *from_filename;
3681 save_callback_args_t callback_args;
3683 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3685 /* don't write over an existing file. */
3686 /* this should've been already checked by our caller, just to be sure... */
3687 if (file_exists(fname)) {
3688 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3689 "%sCapture file: \"%s\" already exists!%s\n\n"
3690 "Please choose a different filename.",
3691 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3695 packet_range_process_init(range);
3697 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3698 /* We're not filtering packets, and we're saving it in the format
3699 it's already in, so we can just move or copy the raw data. */
3701 if (cf->is_tempfile) {
3702 /* The file being saved is a temporary file from a live
3703 capture, so it doesn't need to stay around under that name;
3704 first, try renaming the capture buffer file to the new name. */
3706 if (ws_rename(cf->filename, fname) == 0) {
3707 /* That succeeded - there's no need to copy the source file. */
3708 from_filename = NULL;
3711 if (errno == EXDEV) {
3712 /* They're on different file systems, so we have to copy the
3715 from_filename = cf->filename;
3717 /* The rename failed, but not because they're on different
3718 file systems - put up an error message. (Or should we
3719 just punt and try to copy? The only reason why I'd
3720 expect the rename to fail and the copy to succeed would
3721 be if we didn't have permission to remove the file from
3722 the temporary directory, and that might be fixable - but
3723 is it worth requiring the user to go off and fix it?) */
3724 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3725 file_rename_error_message(errno), fname);
3731 from_filename = cf->filename;
3734 /* It's a permanent file, so we should copy it, and not remove the
3737 from_filename = cf->filename;
3741 /* Copy the file, if we haven't moved it. */
3742 if (!copy_file_binary_mode(from_filename, fname))
3746 /* Either we're filtering packets, or we're saving in a different
3747 format; we can't do that by copying or moving the capture file,
3748 we have to do it by writing the packets out in Wiretap. */
3749 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3752 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3756 /* XXX - we let the user save a subset of the packets.
3758 If we do that, should we make that file the current file? If so,
3759 it means we can no longer get at the other packets. What does
3762 /* Iterate through the list of packets, processing the packets we were
3765 XXX - we've already called "packet_range_process_init(range)", but
3766 "process_specified_packets()" will do it again. Fortunately,
3767 that's harmless in this case, as we haven't done anything to
3768 "range" since we initialized it. */
3769 callback_args.pdh = pdh;
3770 callback_args.fname = fname;
3771 callback_args.file_type = save_format;
3772 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3773 TRUE, save_packet, &callback_args)) {
3776 /* Completed successfully. */
3780 /* The user decided to abort the saving.
3781 XXX - remove the output file? */
3785 /* Error while saving. */
3786 wtap_dump_close(pdh, &err);
3790 if (!wtap_dump_close(pdh, &err)) {
3791 cf_close_failure_alert_box(fname, err);
3796 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3798 if (packet_range_process_all(range)) {
3799 /* We saved the entire capture, not just some packets from it.
3800 Open and read the file we saved it to.
3802 XXX - this is somewhat of a waste; we already have the
3803 packets, all this gets us is updated file type information
3804 (which we could just stuff into "cf"), and having the new
3805 file be the one we have opened and from which we're reading
3806 the data, and it means we have to spend time opening and
3807 reading the file, which could be a significant amount of
3808 time if the file is large. */
3809 cf->user_saved = TRUE;
3811 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3812 /* XXX - report errors if this fails?
3813 What should we return if it fails or is aborted? */
3815 switch (cf_read(cf, TRUE)) {
3819 /* Just because we got an error, that doesn't mean we were unable
3820 to read any of the file; we handle what we could get from the
3824 case CF_READ_ABORTED:
3825 /* The user bailed out of re-reading the capture file; the
3826 capture file has been closed - just return (without
3827 changing any menu settings; "cf_close()" set them
3828 correctly for the "no capture file open" state). */
3831 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3837 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3842 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3843 gboolean for_writing, int file_type)
3846 /* Wiretap error. */
3849 case WTAP_ERR_NOT_REGULAR_FILE:
3850 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3851 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3855 case WTAP_ERR_RANDOM_OPEN_PIPE:
3856 /* Seen only when opening a capture file for reading. */
3857 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3858 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3862 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3863 /* Seen only when opening a capture file for reading. */
3864 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3865 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3869 case WTAP_ERR_UNSUPPORTED:
3870 /* Seen only when opening a capture file for reading. */
3871 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3872 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3874 filename, err_info);
3878 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3879 /* Seen only when opening a capture file for writing. */
3880 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3881 "The file \"%s\" is a pipe, and %s capture files can't be "
3882 "written to a pipe.",
3883 filename, wtap_file_type_string(file_type));
3886 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3887 /* Seen only when opening a capture file for writing. */
3888 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3889 "Wireshark doesn't support writing capture files in that format.");
3892 case WTAP_ERR_UNSUPPORTED_ENCAP:
3894 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3895 "Wireshark can't save this capture in that format.");
3897 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3898 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3900 filename, err_info);
3905 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3907 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3908 "Wireshark can't save this capture in that format.");
3910 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3911 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3916 case WTAP_ERR_BAD_RECORD:
3917 /* Seen only when opening a capture file for reading. */
3918 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3919 "The file \"%s\" appears to be damaged or corrupt.\n"
3921 filename, err_info);
3925 case WTAP_ERR_CANT_OPEN:
3927 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3928 "The file \"%s\" could not be created for some unknown reason.",
3931 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3932 "The file \"%s\" could not be opened for some unknown reason.",
3937 case WTAP_ERR_SHORT_READ:
3938 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3939 "The file \"%s\" appears to have been cut short"
3940 " in the middle of a packet or other data.",
3944 case WTAP_ERR_SHORT_WRITE:
3945 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3946 "A full header couldn't be written to the file \"%s\".",
3950 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3951 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3952 "Gzip compression not supported by this file type.");
3955 case WTAP_ERR_DECOMPRESS:
3956 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3957 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
3958 "(%s)", filename, err_info);
3963 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3964 "The file \"%s\" could not be %s: %s.",
3966 for_writing ? "created" : "opened",
3967 wtap_strerror(err));
3972 open_failure_alert_box(filename, err, for_writing);
3977 file_rename_error_message(int err)
3980 static char errmsg_errno[1024+1];
3985 errmsg = "The path to the file \"%s\" doesn't exist.";
3989 errmsg = "You don't have permission to move the capture file to \"%s\".";
3993 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3994 "The file \"%%s\" could not be moved: %s.",
3995 wtap_strerror(err));
3996 errmsg = errmsg_errno;
4002 /* Check for write errors - if the file is being written to an NFS server,
4003 a write error may not show up until the file is closed, as NFS clients
4004 might not send writes to the server until the "write()" call finishes,
4005 so that the write may fail on the server but the "write()" may succeed. */
4007 cf_close_failure_alert_box(const char *filename, int err)
4010 /* Wiretap error. */
4013 case WTAP_ERR_CANT_CLOSE:
4014 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4015 "The file \"%s\" couldn't be closed for some unknown reason.",
4019 case WTAP_ERR_SHORT_WRITE:
4020 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4021 "Not all the packets could be written to the file \"%s\".",
4026 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4027 "An error occurred while closing the file \"%s\": %s.",
4028 filename, wtap_strerror(err));
4033 We assume that a close error from the OS is really a write error. */
4034 write_failure_alert_box(filename, err);
4038 /* Reload the current capture file. */
4040 cf_reload(capture_file *cf) {
4042 gboolean is_tempfile;
4045 /* If the file could be opened, "cf_open()" calls "cf_close()"
4046 to get rid of state for the old capture file before filling in state
4047 for the new capture file. "cf_close()" will remove the file if
4048 it's a temporary file; we don't want that to happen (for one thing,
4049 it'd prevent subsequent reopens from working). Remember whether it's
4050 a temporary file, mark it as not being a temporary file, and then
4051 reopen it as the type of file it was.
4053 Also, "cf_close()" will free "cf->filename", so we must make
4054 a copy of it first. */
4055 filename = g_strdup(cf->filename);
4056 is_tempfile = cf->is_tempfile;
4057 cf->is_tempfile = FALSE;
4058 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4059 switch (cf_read(cf, FALSE)) {
4063 /* Just because we got an error, that doesn't mean we were unable
4064 to read any of the file; we handle what we could get from the
4068 case CF_READ_ABORTED:
4069 /* The user bailed out of re-reading the capture file; the
4070 capture file has been closed - just free the capture file name
4071 string and return (without changing the last containing
4077 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4078 Instead, the file was left open, so we should restore "cf->is_tempfile"
4081 XXX - change the menu? Presumably "cf_open()" will do that;
4082 make sure it does! */
4083 cf->is_tempfile = is_tempfile;
4085 /* "cf_open()" made a copy of the file name we handed it, so
4086 we should free up our copy. */
4096 * indent-tabs-mode: nil
4099 * ex: set shiftwidth=2 tabstop=8 expandtab:
4100 * :indentSize=2:tabSize=8:noTabs=true: