6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
62 #include <epan/prefs.h>
63 #include <epan/dfilter/dfilter.h>
64 #include <epan/epan_dissect.h>
66 #include <epan/dissectors/packet-data.h>
67 #include <epan/dissectors/packet-ber.h>
68 #include <epan/timestamp.h>
69 #include <epan/dfilter/dfilter-macro.h>
70 #include <wsutil/file_util.h>
71 #include <epan/strutil.h>
72 #include <epan/addr_resolv.h>
74 #include "ui/alert_box.h"
75 #include "ui/simple_dialog.h"
76 #include "ui/main_statusbar.h"
77 #include "ui/progress_dlg.h"
78 #include "ui/ui_util.h"
81 gboolean auto_scroll_live;
84 static guint32 cum_bytes;
85 static nstime_t first_ts;
86 static nstime_t prev_dis_ts;
87 static nstime_t prev_cap_ts;
89 static gulong computed_elapsed;
91 static void cf_reset_state(capture_file *cf);
93 static int read_packet(capture_file *cf, dfilter_t *dfcode,
94 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
96 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
97 gboolean refilter, gboolean redissect);
104 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
106 static void match_subtree_text(proto_node *node, gpointer data);
107 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
111 static match_result match_ascii(capture_file *cf, frame_data *fdata,
113 static match_result match_unicode(capture_file *cf, frame_data *fdata,
115 static match_result match_binary(capture_file *cf, frame_data *fdata,
117 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
119 static match_result match_marked(capture_file *cf, frame_data *fdata,
121 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
123 static gboolean find_packet(capture_file *cf,
124 match_result (*match_function)(capture_file *, frame_data *, void *),
125 void *criterion, search_direction dir);
127 static void cf_open_failure_alert_box(const char *filename, int err,
128 gchar *err_info, gboolean for_writing,
130 static const char *file_rename_error_message(int err);
131 static void cf_close_failure_alert_box(const char *filename, int err);
132 static void ref_time_packets(capture_file *cf);
133 /* Update the progress bar this many times when reading a file. */
134 #define N_PROGBAR_UPDATES 100
135 /* We read around 200k/100ms don't update the progress bar more often than that */
136 #define MIN_QUANTUM 200000
137 #define MIN_NUMBER_OF_PACKET 1500
140 * We could probably use g_signal_...() instead of the callbacks below but that
141 * would require linking our CLI programs to libgobject and creating an object
142 * instance for the signals.
145 cf_callback_t cb_fct;
147 } cf_callback_data_t;
149 static GList *cf_callbacks = NULL;
152 cf_callback_invoke(int event, gpointer data)
154 cf_callback_data_t *cb;
155 GList *cb_item = cf_callbacks;
157 /* there should be at least one interested */
158 g_assert(cb_item != NULL);
160 while(cb_item != NULL) {
162 cb->cb_fct(event, data, cb->user_data);
163 cb_item = g_list_next(cb_item);
169 cf_callback_add(cf_callback_t func, gpointer user_data)
171 cf_callback_data_t *cb;
173 cb = g_malloc(sizeof(cf_callback_data_t));
175 cb->user_data = user_data;
177 cf_callbacks = g_list_append(cf_callbacks, cb);
181 cf_callback_remove(cf_callback_t func)
183 cf_callback_data_t *cb;
184 GList *cb_item = cf_callbacks;
186 while(cb_item != NULL) {
188 if(cb->cb_fct == func) {
189 cf_callbacks = g_list_remove(cf_callbacks, cb);
193 cb_item = g_list_next(cb_item);
196 g_assert_not_reached();
200 cf_timestamp_auto_precision(capture_file *cf)
203 int prec = timestamp_get_precision();
206 /* don't try to get the file's precision if none is opened */
207 if(cf->state == FILE_CLOSED) {
211 /* if we are in auto mode, set precision of current file */
212 if(prec == TS_PREC_AUTO ||
213 prec == TS_PREC_AUTO_SEC ||
214 prec == TS_PREC_AUTO_DSEC ||
215 prec == TS_PREC_AUTO_CSEC ||
216 prec == TS_PREC_AUTO_MSEC ||
217 prec == TS_PREC_AUTO_USEC ||
218 prec == TS_PREC_AUTO_NSEC)
220 switch(wtap_file_tsprecision(cf->wth)) {
221 case(WTAP_FILE_TSPREC_SEC):
222 timestamp_set_precision(TS_PREC_AUTO_SEC);
224 case(WTAP_FILE_TSPREC_DSEC):
225 timestamp_set_precision(TS_PREC_AUTO_DSEC);
227 case(WTAP_FILE_TSPREC_CSEC):
228 timestamp_set_precision(TS_PREC_AUTO_CSEC);
230 case(WTAP_FILE_TSPREC_MSEC):
231 timestamp_set_precision(TS_PREC_AUTO_MSEC);
233 case(WTAP_FILE_TSPREC_USEC):
234 timestamp_set_precision(TS_PREC_AUTO_USEC);
236 case(WTAP_FILE_TSPREC_NSEC):
237 timestamp_set_precision(TS_PREC_AUTO_NSEC);
240 g_assert_not_reached();
243 /* Set the column widths of those columns that show the time in
244 "command-line-specified" format. */
245 for (i = 0; i < cf->cinfo.num_cols; i++) {
246 if (col_has_time_fmt(&cf->cinfo, i)) {
247 new_packet_list_resize_column(i);
253 cf_get_computed_elapsed(void)
255 return computed_elapsed;
258 static void reset_elapsed(void)
260 computed_elapsed = 0;
263 static void compute_elapsed(GTimeVal *start_time)
268 g_get_current_time(&time_now);
270 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
271 time_now.tv_usec - start_time->tv_usec;
273 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
277 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
282 wth = wtap_open_offline(fname, err, &err_info, TRUE);
286 /* The open succeeded. Close whatever capture file we had open,
287 and fill in the information for this file. */
290 /* Cleanup all data structures used for dissection. */
291 cleanup_dissection();
292 /* Initialize all data structures used for dissection. */
295 /* We're about to start reading the file. */
296 cf->state = FILE_READ_IN_PROGRESS;
301 /* Set the file name because we need it to set the follow stream filter.
302 XXX - is that still true? We need it for other reasons, though,
304 cf->filename = g_strdup(fname);
306 /* Indicate whether it's a permanent or temporary file. */
307 cf->is_tempfile = is_tempfile;
309 /* If it's a temporary capture buffer file, mark it as not saved. */
310 cf->user_saved = !is_tempfile;
314 cf->cd_t = wtap_file_type(cf->wth);
316 cf->displayed_count = 0;
317 cf->marked_count = 0;
318 cf->ignored_count = 0;
319 cf->ref_time_count = 0;
320 cf->drops_known = FALSE;
322 cf->snap = wtap_snapshot_length(cf->wth);
324 /* Snapshot length not known. */
325 cf->has_snap = FALSE;
326 cf->snap = WTAP_MAX_PACKET_SIZE;
330 /* Allocate a frame_data_sequence for the frames in this file */
331 cf->frames = new_frame_data_sequence();
333 nstime_set_zero(&cf->elapsed_time);
334 nstime_set_unset(&first_ts);
335 nstime_set_unset(&prev_dis_ts);
336 nstime_set_unset(&prev_cap_ts);
339 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
340 cf_timestamp_auto_precision(cf);
342 new_packet_list_queue_draw();
343 fileset_file_opened(fname);
345 if(cf->cd_t == WTAP_FILE_BER) {
346 /* tell the BER dissector the file name */
347 ber_set_filename(cf->filename);
350 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
351 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
356 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
362 * Reset the state for the currently closed file, but don't do the
363 * UI callbacks; this is for use in "cf_open()", where we don't
364 * want the UI to go from "file open" to "file closed" back to
365 * "file open", we want it to go from "old file open" to "new file
366 * open and being read".
368 * XXX - currently, cf_open() calls cf_close(), rather than
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 if(cf->state != FILE_CLOSED) {
435 cf_callback_invoke(cf_cb_file_closing, cf);
437 /* close things, if not already closed before */
438 color_filters_cleanup();
440 cleanup_dissection();
442 cf_callback_invoke(cf_cb_file_closed, cf);
446 /* an out of memory exception occured, wait for a user button press to exit */
447 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
453 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
457 progbar_val = (gfloat) file_pos / (gfloat) size;
458 if (progbar_val > 1.0) {
460 /* The file probably grew while we were reading it.
461 * Update file size, and try again.
463 size = wtap_file_size(cf->wth, NULL);
466 progbar_val = (gfloat) file_pos / (gfloat) size;
468 /* If it's still > 1, either "wtap_file_size()" failed (in which
469 * case there's not much we can do about it), or the file
470 * *shrank* (in which case there's not much we can do about
471 * it); just clip the progress value at 1.0.
473 if (progbar_val > 1.0f)
477 g_snprintf(status_str, status_size,
478 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
479 file_pos / 1024, size / 1024);
485 cf_read(capture_file *cf, gboolean from_save)
489 const gchar *name_ptr;
491 char errmsg_errno[1024+1];
494 progdlg_t *volatile progbar = NULL;
496 volatile gint64 size;
497 volatile float progbar_val;
499 gchar status_str[100];
500 volatile gint64 progbar_nextstep;
501 volatile gint64 progbar_quantum;
503 gboolean filtering_tap_listeners;
505 volatile int count = 0;
507 volatile int displayed_once = 0;
511 /* Compile the current display filter.
512 * We assume this will not fail since cf->dfilter is only set in
513 * cf_filter IFF the filter was valid.
515 compiled = dfilter_compile(cf->dfilter, &dfcode);
516 g_assert(!cf->dfilter || (compiled && dfcode));
518 /* Do we have any tap listeners with filters? */
519 filtering_tap_listeners = have_filtering_tap_listeners();
521 /* Get the union of the flags for all tap listeners. */
522 tap_flags = union_of_tap_listener_flags();
524 reset_tap_listeners();
526 name_ptr = get_basename(cf->filename);
528 if (from_save == FALSE)
529 cf_callback_invoke(cf_cb_file_read_started, cf);
531 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
533 /* Find the size of the file. */
534 size = wtap_file_size(cf->wth, NULL);
536 /* Update the progress bar when it gets to this value. */
537 progbar_nextstep = 0;
538 /* When we reach the value that triggers a progress bar update,
539 bump that value by this amount. */
541 progbar_quantum = size/N_PROGBAR_UPDATES;
542 if (progbar_quantum < MIN_QUANTUM)
543 progbar_quantum = MIN_QUANTUM;
546 /* Progress so far. */
549 /* The packet list window will be empty untill the file is completly loaded */
550 new_packet_list_freeze();
553 g_get_current_time(&start_time);
555 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
558 file_pos = wtap_read_so_far(cf->wth);
560 /* Create the progress bar if necessary.
561 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
563 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
564 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
565 if (from_save == FALSE)
566 progbar = delayed_create_progress_dlg("Loading", name_ptr,
567 TRUE, &stop_flag, &start_time, progbar_val);
569 progbar = delayed_create_progress_dlg("Saving", name_ptr,
570 TRUE, &stop_flag, &start_time, progbar_val);
573 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
574 when we update it, we have to run the GTK+ main loop to get it
575 to repaint what's pending, and doing so may involve an "ioctl()"
576 to see if there's any pending input from an X server, and doing
577 that for every packet can be costly, especially on a big file. */
578 if (file_pos >= progbar_nextstep) {
579 if (progbar != NULL) {
580 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
581 /* update the packet bar content on the first run or frequently on very large files */
583 if (progbar_quantum > 500000 || displayed_once == 0) {
584 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
586 packets_bar_update();
589 #endif /* HAVE_LIBPCAP */
590 update_progress_dlg(progbar, progbar_val, status_str);
592 progbar_nextstep += progbar_quantum;
597 /* Well, the user decided to abort the read. He/She will be warned and
598 it might be enough for him/her to work with the already loaded
600 This is especially true for very large capture files, where you don't
601 want to wait loading the whole file (which may last minutes or even
602 hours even on fast machines) just to see that it was the wrong file. */
606 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
608 CATCH(OutOfMemoryError) {
611 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
612 "%sOut Of Memory!%s\n"
614 "Sorry, but Wireshark has to terminate now!\n"
616 "Some infos / workarounds can be found at:\n"
617 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
618 simple_dialog_primary_start(), simple_dialog_primary_end());
619 /* we have to terminate, as we cannot recover from the memory error */
620 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
622 main_window_update();
623 /* XXX - how to avoid a busy wait? */
631 /* Cleanup and release all dfilter resources */
633 dfilter_free(dfcode);
636 /* We're done reading the file; destroy the progress bar if it was created. */
638 destroy_progress_dlg(progbar);
640 /* We're done reading sequentially through the file. */
641 cf->state = FILE_READ_DONE;
643 /* Close the sequential I/O side, to free up memory it requires. */
644 wtap_sequential_close(cf->wth);
646 /* Allow the protocol dissectors to free up memory that they
647 * don't need after the sequential run-through of the packets. */
648 postseq_cleanup_all_protocols();
650 /* compute the time it took to load the file */
651 compute_elapsed(&start_time);
653 /* Set the file encapsulation type now; we don't know what it is until
654 we've looked at all the packets, as we don't know until then whether
655 there's more than one type (and thus whether it's
656 WTAP_ENCAP_PER_PACKET). */
657 cf->lnk_t = wtap_file_encap(cf->wth);
659 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
662 new_packet_list_thaw();
663 if (from_save == FALSE)
664 cf_callback_invoke(cf_cb_file_read_finished, cf);
666 cf_callback_invoke(cf_cb_file_save_finished, cf);
668 /* If we have any displayed packets to select, select the first of those
669 packets by making the first row the selected row. */
670 if (cf->first_displayed != 0){
671 new_packet_list_select_first_row();
675 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
676 "%sFile loading was cancelled!%s\n"
678 "The remaining packets in the file were discarded.\n"
680 "As a lot of packets from the original file will be missing,\n"
681 "remember to be careful when saving the current content to a file.\n",
682 simple_dialog_primary_start(), simple_dialog_primary_end());
683 return CF_READ_ERROR;
687 /* Put up a message box noting that the read failed somewhere along
688 the line. Don't throw out the stuff we managed to read, though,
692 case WTAP_ERR_UNSUPPORTED:
693 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
694 "The capture file contains record data that TShark doesn't support.\n(%s)",
697 errmsg = errmsg_errno;
700 case WTAP_ERR_UNSUPPORTED_ENCAP:
701 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
702 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
705 errmsg = errmsg_errno;
708 case WTAP_ERR_CANT_READ:
709 errmsg = "An attempt to read from the capture file failed for"
710 " some unknown reason.";
713 case WTAP_ERR_SHORT_READ:
714 errmsg = "The capture file appears to have been cut short"
715 " in the middle of a packet.";
718 case WTAP_ERR_BAD_FILE:
719 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
720 "The capture file appears to be damaged or corrupt.\n(%s)",
723 errmsg = errmsg_errno;
726 case WTAP_ERR_DECOMPRESS:
727 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
728 "The compressed capture file appears to be damaged or corrupt.\n"
731 errmsg = errmsg_errno;
735 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
736 "An error occurred while reading the"
737 " capture file: %s.", wtap_strerror(err));
738 errmsg = errmsg_errno;
741 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
742 return CF_READ_ERROR;
749 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
751 cf_status_t cf_status;
753 cf_status = cf_open(cf, fname, is_tempfile, err);
758 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
760 gint64 data_offset = 0;
762 volatile int newly_displayed_packets = 0;
764 gboolean filtering_tap_listeners;
768 /* Compile the current display filter.
769 * We assume this will not fail since cf->dfilter is only set in
770 * cf_filter IFF the filter was valid.
772 compiled = dfilter_compile(cf->dfilter, &dfcode);
773 g_assert(!cf->dfilter || (compiled && dfcode));
775 /* Do we have any tap listeners with filters? */
776 filtering_tap_listeners = have_filtering_tap_listeners();
778 /* Get the union of the flags for all tap listeners. */
779 tap_flags = union_of_tap_listener_flags();
783 new_packet_list_check_end();
784 /* Don't freeze/thaw the list when doing live capture */
785 /*new_packet_list_freeze();*/
787 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
789 while (to_read != 0) {
790 wtap_cleareof(cf->wth);
791 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
794 if (cf->state == FILE_READ_ABORTED) {
795 /* Well, the user decided to exit Wireshark. Break out of the
796 loop, and let the code below (which is called even if there
797 aren't any packets left to read) exit. */
801 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
802 data_offset) != -1) {
803 newly_displayed_packets++;
806 CATCH(OutOfMemoryError) {
809 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
810 "%sOut Of Memory!%s\n"
812 "Sorry, but Wireshark has to terminate now!\n"
814 "The capture file is not lost, it can be found at:\n"
817 "Some infos / workarounds can be found at:\n"
818 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
819 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
820 /* we have to terminate, as we cannot recover from the memory error */
821 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
823 main_window_update();
824 /* XXX - how to avoid a busy wait? */
827 /* Don't freeze/thaw the list when doing live capture */
828 /*new_packet_list_thaw();*/
829 return CF_READ_ABORTED;
835 /* Cleanup and release all dfilter resources */
837 dfilter_free(dfcode);
840 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
841 cf->count, cf->state, *err);*/
843 /* Don't freeze/thaw the list when doing live capture */
844 /*new_packet_list_thaw();*/
845 /* With the new packet list the first packet
846 * isn't automatically selected.
848 if(!cf->current_frame)
849 new_packet_list_select_first_row();
851 /* moving to the end of the packet list - if the user requested so and
852 we have some new packets. */
853 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
854 new_packet_list_moveto_end();
856 if (cf->state == FILE_READ_ABORTED) {
857 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
858 so that our caller can kill off the capture child process;
859 this will cause an EOF on the pipe from the child, so
860 "cf_finish_tail()" will be called, and it will clean up
862 return CF_READ_ABORTED;
863 } else if (*err != 0) {
864 /* We got an error reading the capture file.
865 XXX - pop up a dialog box instead? */
866 g_warning("Error \"%s\" while reading: \"%s\"\n",
867 wtap_strerror(*err), cf->filename);
869 return CF_READ_ERROR;
875 cf_fake_continue_tail(capture_file *cf) {
876 cf->state = FILE_READ_DONE;
880 cf_finish_tail(capture_file *cf, int *err)
885 gboolean filtering_tap_listeners;
889 /* Compile the current display filter.
890 * We assume this will not fail since cf->dfilter is only set in
891 * cf_filter IFF the filter was valid.
893 compiled = dfilter_compile(cf->dfilter, &dfcode);
894 g_assert(!cf->dfilter || (compiled && dfcode));
896 /* Do we have any tap listeners with filters? */
897 filtering_tap_listeners = have_filtering_tap_listeners();
899 /* Get the union of the flags for all tap listeners. */
900 tap_flags = union_of_tap_listener_flags();
902 if(cf->wth == NULL) {
904 return CF_READ_ERROR;
907 new_packet_list_check_end();
908 /* Don't freeze/thaw the list when doing live capture */
909 /*new_packet_list_freeze();*/
911 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
912 if (cf->state == FILE_READ_ABORTED) {
913 /* Well, the user decided to abort the read. Break out of the
914 loop, and let the code below (which is called even if there
915 aren't any packets left to read) exit. */
918 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
921 /* Cleanup and release all dfilter resources */
923 dfilter_free(dfcode);
926 /* Don't freeze/thaw the list when doing live capture */
927 /*new_packet_list_thaw();*/
929 if (cf->state == FILE_READ_ABORTED) {
930 /* Well, the user decided to abort the read. We're only called
931 when the child capture process closes the pipe to us (meaning
932 it's probably exited), so we can just close the capture
933 file; we return CF_READ_ABORTED so our caller can do whatever
934 is appropriate when that happens. */
936 return CF_READ_ABORTED;
939 if (auto_scroll_live && cf->count != 0)
940 new_packet_list_moveto_end();
942 /* We're done reading sequentially through the file. */
943 cf->state = FILE_READ_DONE;
945 /* We're done reading sequentially through the file; close the
946 sequential I/O side, to free up memory it requires. */
947 wtap_sequential_close(cf->wth);
949 /* Allow the protocol dissectors to free up memory that they
950 * don't need after the sequential run-through of the packets. */
951 postseq_cleanup_all_protocols();
953 /* Set the file encapsulation type now; we don't know what it is until
954 we've looked at all the packets, as we don't know until then whether
955 there's more than one type (and thus whether it's
956 WTAP_ENCAP_PER_PACKET). */
957 cf->lnk_t = wtap_file_encap(cf->wth);
960 /* We got an error reading the capture file.
961 XXX - pop up a dialog box? */
962 return CF_READ_ERROR;
967 #endif /* HAVE_LIBPCAP */
970 cf_get_display_name(capture_file *cf)
972 const gchar *displayname;
974 /* Return a name to use in displays */
975 if (!cf->is_tempfile) {
976 /* Get the last component of the file name, and use that. */
978 displayname = get_basename(cf->filename);
980 displayname="(No file)";
983 /* The file we read is a temporary file from a live capture;
984 we don't mention its name. */
986 displayname = cf->source;
988 displayname = "(Untitled)";
994 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1000 cf->source = g_strdup(source);
1002 cf->source = g_strdup("");
1006 const gchar *cf_get_tempfile_source(capture_file *cf) {
1014 /* XXX - use a macro instead? */
1016 cf_get_packet_count(capture_file *cf)
1021 /* XXX - use a macro instead? */
1023 cf_set_packet_count(capture_file *cf, int packet_count)
1025 cf->count = packet_count;
1028 /* XXX - use a macro instead? */
1030 cf_is_tempfile(capture_file *cf)
1032 return cf->is_tempfile;
1035 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1037 cf->is_tempfile = is_tempfile;
1041 /* XXX - use a macro instead? */
1042 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1044 cf->drops_known = drops_known;
1047 /* XXX - use a macro instead? */
1048 void cf_set_drops(capture_file *cf, guint32 drops)
1053 /* XXX - use a macro instead? */
1054 gboolean cf_get_drops_known(capture_file *cf)
1056 return cf->drops_known;
1059 /* XXX - use a macro instead? */
1060 guint32 cf_get_drops(capture_file *cf)
1065 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1067 cf->rfcode = rfcode;
1071 find_and_mark_frame_depended_upon(gpointer data, gpointer user_data)
1073 frame_data *dependent_fd;
1074 guint32 dependent_frame = GPOINTER_TO_UINT(data);
1075 capture_file *cf = (capture_file *)user_data;
1077 dependent_fd = frame_data_sequence_find(cf->frames, dependent_frame);
1078 dependent_fd->flags.dependent_of_displayed = 1;
1082 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1083 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1085 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1087 gboolean add_to_packet_list)
1089 gboolean create_proto_tree = FALSE;
1094 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1096 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1097 &first_ts, &prev_dis_ts, &prev_cap_ts);
1100 + we have a display filter and are re-applying it;
1101 + we have tap listeners with filters;
1102 + we have tap listeners that require a protocol tree;
1104 allocate a protocol tree root node, so that we'll construct
1105 a protocol tree against which a filter expression can be
1107 if ((dfcode != NULL && refilter) ||
1108 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1109 create_proto_tree = TRUE;
1111 /* Dissect the frame. */
1112 epan_dissect_init(&edt, create_proto_tree, FALSE);
1114 if (dfcode != NULL && refilter) {
1115 epan_dissect_prime_dfilter(&edt, dfcode);
1118 tap_queue_init(&edt);
1119 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1120 tap_push_tapped_queue(&edt);
1122 /* If we have a display filter, apply it if we're refiltering, otherwise
1123 leave the "passed_dfilter" flag alone.
1125 If we don't have a display filter, set "passed_dfilter" to 1. */
1126 if (dfcode != NULL) {
1128 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1130 /* This frame passed the display filter but it may depend on other
1131 * (potentially not displayed) frames. Find those frames and mark them
1134 g_slist_foreach(edt.pi.dependent_frames, find_and_mark_frame_depended_upon, cf);
1137 fdata->flags.passed_dfilter = 1;
1139 /* We're done with this list */
1140 g_slist_free(edt.pi.dependent_frames);
1142 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1143 cf->displayed_count++;
1145 if (add_to_packet_list) {
1146 /* We fill the needed columns from new_packet_list */
1147 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1150 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1152 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1154 /* If we haven't yet seen the first frame, this is it.
1156 XXX - we must do this before we add the row to the display,
1157 as, if the display's GtkCList's selection mode is
1158 GTK_SELECTION_BROWSE, when the first entry is added to it,
1159 "cf_select_packet()" will be called, and it will fetch the row
1160 data for the 0th row, and will get a null pointer rather than
1161 "fdata", as "gtk_clist_append()" won't yet have returned and
1162 thus "gtk_clist_set_row_data()" won't yet have been called.
1164 We thus need to leave behind bread crumbs so that
1165 "cf_select_packet()" can find this frame. See the comment
1166 in "cf_select_packet()". */
1167 if (cf->first_displayed == 0)
1168 cf->first_displayed = fdata->num;
1170 /* This is the last frame we've seen so far. */
1171 cf->last_displayed = fdata->num;
1174 epan_dissect_cleanup(&edt);
1178 /* read in a new packet */
1179 /* returns the row of the new packet in the packet list or -1 if not displayed */
1181 read_packet(capture_file *cf, dfilter_t *dfcode,
1182 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1184 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1185 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1186 const guchar *buf = wtap_buf_ptr(cf->wth);
1193 /* The frame number of this packet is one more than the count of
1194 frames in this packet. */
1195 framenum = cf->count + 1;
1197 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1202 epan_dissect_init(&edt, TRUE, FALSE);
1203 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1204 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1205 passed = dfilter_apply_edt(cf->rfcode, &edt);
1206 epan_dissect_cleanup(&edt);
1210 /* This does a shallow copy of fdlocal, which is good enough. */
1211 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1214 cf->f_datalen = offset + fdlocal.cap_len;
1216 if (!cf->redissecting) {
1217 row = add_packet_to_packet_list(fdata, cf, dfcode,
1218 filtering_tap_listeners, tap_flags,
1219 pseudo_header, buf, TRUE, TRUE);
1227 cf_merge_files(char **out_filenamep, int in_file_count,
1228 char *const *in_filenames, int file_type, gboolean do_append)
1230 merge_in_file_t *in_files, *in_file;
1235 int open_err, read_err, write_err, close_err;
1239 char errmsg_errno[1024+1];
1241 gboolean got_read_error = FALSE, got_write_error = FALSE;
1243 progdlg_t *progbar = NULL;
1245 gint64 f_len, file_pos;
1247 GTimeVal start_time;
1248 gchar status_str[100];
1249 gint64 progbar_nextstep;
1250 gint64 progbar_quantum;
1252 /* open the input files */
1253 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1254 &open_err, &err_info, &err_fileno)) {
1256 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1261 if (*out_filenamep != NULL) {
1262 out_filename = *out_filenamep;
1263 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1267 out_fd = create_tempfile(&tmpname, "wireshark");
1270 out_filename = g_strdup(tmpname);
1271 *out_filenamep = out_filename;
1275 merge_close_in_files(in_file_count, in_files);
1277 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1281 pdh = wtap_dump_fdopen(out_fd, file_type,
1282 merge_select_frame_type(in_file_count, in_files),
1283 merge_max_snapshot_length(in_file_count, in_files),
1284 FALSE /* compressed */, &open_err);
1287 merge_close_in_files(in_file_count, in_files);
1289 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1294 /* Get the sum of the sizes of all the files. */
1296 for (i = 0; i < in_file_count; i++)
1297 f_len += in_files[i].size;
1299 /* Update the progress bar when it gets to this value. */
1300 progbar_nextstep = 0;
1301 /* When we reach the value that triggers a progress bar update,
1302 bump that value by this amount. */
1303 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1304 /* Progress so far. */
1308 g_get_current_time(&start_time);
1310 /* do the merge (or append) */
1313 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1316 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1318 if (in_file == NULL) {
1323 if (read_err != 0) {
1324 /* I/O error reading from in_file */
1325 got_read_error = TRUE;
1329 /* Get the sum of the data offsets in all of the files. */
1331 for (i = 0; i < in_file_count; i++)
1332 data_offset += in_files[i].data_offset;
1334 /* Create the progress bar if necessary.
1335 We check on every iteration of the loop, so that it takes no
1336 longer than the standard time to create it (otherwise, for a
1337 large file, we might take considerably longer than that standard
1338 time in order to get to the next progress bar step). */
1339 if (progbar == NULL) {
1340 progbar = delayed_create_progress_dlg("Merging", "files",
1341 FALSE, &stop_flag, &start_time, progbar_val);
1344 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1345 when we update it, we have to run the GTK+ main loop to get it
1346 to repaint what's pending, and doing so may involve an "ioctl()"
1347 to see if there's any pending input from an X server, and doing
1348 that for every packet can be costly, especially on a big file. */
1349 if (data_offset >= progbar_nextstep) {
1350 /* Get the sum of the seek positions in all of the files. */
1352 for (i = 0; i < in_file_count; i++)
1353 file_pos += wtap_read_so_far(in_files[i].wth);
1354 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1355 if (progbar_val > 1.0f) {
1356 /* Some file probably grew while we were reading it.
1357 That "shouldn't happen", so we'll just clip the progress
1361 if (progbar != NULL) {
1362 g_snprintf(status_str, sizeof(status_str),
1363 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1364 file_pos / 1024, f_len / 1024);
1365 update_progress_dlg(progbar, progbar_val, status_str);
1367 progbar_nextstep += progbar_quantum;
1371 /* Well, the user decided to abort the merge. */
1375 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1376 wtap_buf_ptr(in_file->wth), &write_err)) {
1377 got_write_error = TRUE;
1382 /* We're done merging the files; destroy the progress bar if it was created. */
1383 if (progbar != NULL)
1384 destroy_progress_dlg(progbar);
1386 merge_close_in_files(in_file_count, in_files);
1387 if (!got_read_error && !got_write_error) {
1388 if (!wtap_dump_close(pdh, &write_err))
1389 got_write_error = TRUE;
1391 wtap_dump_close(pdh, &close_err);
1393 if (got_read_error) {
1395 * Find the file on which we got the error, and report the error.
1397 for (i = 0; i < in_file_count; i++) {
1398 if (in_files[i].state == GOT_ERROR) {
1399 /* Put up a message box noting that a read failed somewhere along
1403 case WTAP_ERR_UNSUPPORTED_ENCAP:
1404 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1405 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1408 errmsg = errmsg_errno;
1411 case WTAP_ERR_CANT_READ:
1412 errmsg = "An attempt to read from the capture file %s failed for"
1413 " some unknown reason.";
1416 case WTAP_ERR_SHORT_READ:
1417 errmsg = "The capture file %s appears to have been cut short"
1418 " in the middle of a packet.";
1421 case WTAP_ERR_BAD_FILE:
1422 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1423 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1426 errmsg = errmsg_errno;
1429 case WTAP_ERR_DECOMPRESS:
1430 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1431 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1434 errmsg = errmsg_errno;
1438 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1439 "An error occurred while reading the"
1440 " capture file %%s: %s.", wtap_strerror(read_err));
1441 errmsg = errmsg_errno;
1444 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1449 if (got_write_error) {
1450 /* Put up an alert box for the write error. */
1451 if (write_err < 0) {
1452 /* Wiretap error. */
1453 switch (write_err) {
1455 case WTAP_ERR_UNSUPPORTED_ENCAP:
1457 * This is a problem with the particular frame we're writing;
1458 * note that, and give the frame number.
1460 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1461 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1462 in_file->packet_num, in_file->filename,
1463 wtap_file_type_string(file_type));
1467 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1468 "An error occurred while writing to the file \"%s\": %s.",
1469 out_filename, wtap_strerror(write_err));
1474 write_failure_alert_box(out_filename, write_err);
1478 if (got_read_error || got_write_error || stop_flag) {
1479 /* Callers aren't expected to treat an error or an explicit abort
1480 differently - we put up error dialogs ourselves, so they don't
1488 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1490 const char *filter_new = dftext ? dftext : "";
1491 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1493 GTimeVal start_time;
1495 /* if new filter equals old one, do nothing unless told to do so */
1496 if (!force && strcmp(filter_new, filter_old) == 0) {
1502 if (dftext == NULL) {
1503 /* The new filter is an empty filter (i.e., display all packets).
1504 * so leave dfcode==NULL
1508 * We have a filter; make a copy of it (as we'll be saving it),
1509 * and try to compile it.
1511 dftext = g_strdup(dftext);
1512 if (!dfilter_compile(dftext, &dfcode)) {
1513 /* The attempt failed; report an error. */
1514 gchar *safe_dftext = simple_dialog_format_message(dftext);
1515 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1517 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1520 "The following display filter isn't a valid display filter:\n%s\n"
1521 "See the help for a description of the display filter syntax.",
1522 simple_dialog_primary_start(), safe_dfilter_error_msg,
1523 simple_dialog_primary_end(), safe_dftext);
1524 g_free(safe_dfilter_error_msg);
1525 g_free(safe_dftext);
1531 if (dfcode == NULL) {
1532 /* Yes - free the filter text, and set it to null. */
1538 /* We have a valid filter. Replace the current filter. */
1539 g_free(cf->dfilter);
1540 cf->dfilter = dftext;
1541 g_get_current_time(&start_time);
1544 /* Now rescan the packet list, applying the new filter, but not
1545 throwing away information constructed on a previous pass. */
1546 if (dftext == NULL) {
1547 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1549 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1552 /* Cleanup and release all dfilter resources */
1553 dfilter_free(dfcode);
1559 cf_reftime_packets(capture_file *cf)
1562 ref_time_packets(cf);
1566 cf_redissect_packets(capture_file *cf)
1568 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1572 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1573 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1577 char errmsg_errno[1024+1];
1579 #ifdef WANT_PACKET_EDITOR
1580 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1581 if (G_UNLIKELY(fdata->file_off == -1)) {
1582 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1585 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "fdata->file_off == -1, but can't find modified frame!");
1589 *pseudo_header = frame->ph;
1590 memcpy(pd, frame->pd, fdata->cap_len);
1595 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1596 fdata->cap_len, &err, &err_info)) {
1599 case WTAP_ERR_UNSUPPORTED_ENCAP:
1600 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1601 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1606 case WTAP_ERR_BAD_FILE:
1607 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1608 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1609 wtap_strerror(err), err_info);
1614 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1615 "An error occurred while reading from the file \"%%s\": %s.",
1616 wtap_strerror(err));
1619 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1626 cf_read_frame(capture_file *cf, frame_data *fdata)
1628 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1631 /* Rescan the list of packets, reconstructing the CList.
1633 "action" describes why we're doing this; it's used in the progress
1636 "action_item" describes what we're doing; it's used in the progress
1639 "refilter" is TRUE if we need to re-evaluate the filter expression.
1641 "redissect" is TRUE if we need to make the dissectors reconstruct
1642 any state information they have (because a preference that affects
1643 some dissector has changed, meaning some dissector might construct
1644 its state differently from the way it was constructed the last time). */
1646 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1647 gboolean refilter, gboolean redissect)
1649 /* Rescan packets new packet list */
1652 progdlg_t *progbar = NULL;
1655 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1656 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1657 gboolean selected_frame_seen;
1659 GTimeVal start_time;
1660 gchar status_str[100];
1661 int progbar_nextstep;
1662 int progbar_quantum;
1664 gboolean filtering_tap_listeners;
1666 gboolean add_to_packet_list = FALSE;
1669 /* Compile the current display filter.
1670 * We assume this will not fail since cf->dfilter is only set in
1671 * cf_filter IFF the filter was valid.
1673 compiled = dfilter_compile(cf->dfilter, &dfcode);
1674 g_assert(!cf->dfilter || (compiled && dfcode));
1676 /* Do we have any tap listeners with filters? */
1677 filtering_tap_listeners = have_filtering_tap_listeners();
1679 /* Get the union of the flags for all tap listeners. */
1680 tap_flags = union_of_tap_listener_flags();
1682 reset_tap_listeners();
1683 /* Which frame, if any, is the currently selected frame?
1684 XXX - should the selected frame or the focus frame be the "current"
1685 frame, that frame being the one from which "Find Frame" searches
1687 selected_frame = cf->current_frame;
1689 /* Mark frame num as not found */
1690 selected_frame_num = -1;
1692 /* Freeze the packet list while we redo it, so we don't get any
1693 screen updates while it happens. */
1694 new_packet_list_freeze();
1697 /* We need to re-initialize all the state information that protocols
1698 keep, because some preference that controls a dissector has changed,
1699 which might cause the state information to be constructed differently
1700 by that dissector. */
1702 /* We might receive new packets while redissecting, and we don't
1703 want to dissect those before their time. */
1704 cf->redissecting = TRUE;
1706 /* Cleanup all data structures used for dissection. */
1707 cleanup_dissection();
1708 /* Initialize all data structures used for dissection. */
1711 /* We need to redissect the packets so we have to discard our old
1712 * packet list store. */
1713 new_packet_list_clear();
1714 add_to_packet_list = TRUE;
1717 /* We don't yet know which will be the first and last frames displayed. */
1718 cf->first_displayed = 0;
1719 cf->last_displayed = 0;
1721 /* We currently don't display any packets */
1722 cf->displayed_count = 0;
1724 /* Iterate through the list of frames. Call a routine for each frame
1725 to check whether it should be displayed and, if so, add it to
1726 the display list. */
1727 nstime_set_unset(&first_ts);
1728 nstime_set_unset(&prev_dis_ts);
1729 nstime_set_unset(&prev_cap_ts);
1732 /* Update the progress bar when it gets to this value. */
1733 progbar_nextstep = 0;
1734 /* When we reach the value that triggers a progress bar update,
1735 bump that value by this amount. */
1736 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1737 /* Count of packets at which we've looked. */
1739 /* Progress so far. */
1743 g_get_current_time(&start_time);
1745 /* no previous row yet */
1746 prev_frame_num = -1;
1749 preceding_frame_num = -1;
1750 preceding_frame = NULL;
1751 following_frame_num = -1;
1752 following_frame = NULL;
1754 selected_frame_seen = FALSE;
1756 for (framenum = 1; framenum <= cf->count; framenum++) {
1757 fdata = frame_data_sequence_find(cf->frames, framenum);
1759 /* Create the progress bar if necessary.
1760 We check on every iteration of the loop, so that it takes no
1761 longer than the standard time to create it (otherwise, for a
1762 large file, we might take considerably longer than that standard
1763 time in order to get to the next progress bar step). */
1764 if (progbar == NULL)
1765 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1766 &stop_flag, &start_time,
1769 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1770 when we update it, we have to run the GTK+ main loop to get it
1771 to repaint what's pending, and doing so may involve an "ioctl()"
1772 to see if there's any pending input from an X server, and doing
1773 that for every packet can be costly, especially on a big file. */
1774 if (count >= progbar_nextstep) {
1775 /* let's not divide by zero. I should never be started
1776 * with count == 0, so let's assert that
1778 g_assert(cf->count > 0);
1779 progbar_val = (gfloat) count / cf->count;
1781 if (progbar != NULL) {
1782 g_snprintf(status_str, sizeof(status_str),
1783 "%4u of %u frames", count, cf->count);
1784 update_progress_dlg(progbar, progbar_val, status_str);
1787 progbar_nextstep += progbar_quantum;
1791 /* Well, the user decided to abort the filtering. Just stop.
1793 XXX - go back to the previous filter? Users probably just
1794 want not to wait for a filtering operation to finish;
1795 unless we cancel by having no filter, reverting to the
1796 previous filter will probably be even more expensive than
1797 continuing the filtering, as it involves going back to the
1798 beginning and filtering, and even with no filter we currently
1799 have to re-generate the entire clist, which is also expensive.
1801 I'm not sure what Network Monitor does, but it doesn't appear
1802 to give you an unfiltered display if you cancel. */
1809 /* Since all state for the frame was destroyed, mark the frame
1810 * as not visited, free the GSList referring to the state
1811 * data (the per-frame data itself was freed by
1812 * "init_dissection()"), and null out the GSList pointer. */
1813 fdata->flags.visited = 0;
1814 frame_data_cleanup(fdata);
1817 if (!cf_read_frame(cf, fdata))
1818 break; /* error reading the frame */
1820 /* If the previous frame is displayed, and we haven't yet seen the
1821 selected frame, remember that frame - it's the closest one we've
1822 yet seen before the selected frame. */
1823 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1824 preceding_frame_num = prev_frame_num;
1825 preceding_frame = prev_frame;
1827 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1828 tap_flags, &cf->pseudo_header, cf->pd,
1830 add_to_packet_list);
1832 /* If this frame is displayed, and this is the first frame we've
1833 seen displayed after the selected frame, remember this frame -
1834 it's the closest one we've yet seen at or after the selected
1836 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1837 following_frame_num = fdata->num;
1838 following_frame = fdata;
1840 if (fdata == selected_frame) {
1841 selected_frame_seen = TRUE;
1842 if (fdata->flags.passed_dfilter)
1843 selected_frame_num = fdata->num;
1846 /* Remember this frame - it'll be the previous frame
1847 on the next pass through the loop. */
1848 prev_frame_num = fdata->num;
1852 /* We are done redissecting the packet list. */
1853 cf->redissecting = FALSE;
1856 /* Clear out what remains of the visited flags and per-frame data
1859 XXX - that may cause various forms of bogosity when dissecting
1860 these frames, as they won't have been seen by this sequential
1861 pass, but the only alternative I see is to keep scanning them
1862 even though the user requested that the scan stop, and that
1863 would leave the user stuck with an Wireshark grinding on
1864 until it finishes. Should we just stick them with that? */
1865 for (; framenum <= cf->count; framenum++) {
1866 fdata = frame_data_sequence_find(cf->frames, framenum);
1867 fdata->flags.visited = 0;
1868 frame_data_cleanup(fdata);
1872 /* We're done filtering the packets; destroy the progress bar if it
1874 if (progbar != NULL)
1875 destroy_progress_dlg(progbar);
1877 /* Unfreeze the packet list. */
1878 if (!add_to_packet_list)
1879 new_packet_list_recreate_visible_rows();
1881 /* Compute the time it took to filter the file */
1882 compute_elapsed(&start_time);
1884 new_packet_list_thaw();
1886 if (selected_frame_num == -1) {
1887 /* The selected frame didn't pass the filter. */
1888 if (selected_frame == NULL) {
1889 /* That's because there *was* no selected frame. Make the first
1890 displayed frame the current frame. */
1891 selected_frame_num = 0;
1893 /* Find the nearest displayed frame to the selected frame (whether
1894 it's before or after that frame) and make that the current frame.
1895 If the next and previous displayed frames are equidistant from the
1896 selected frame, choose the next one. */
1897 g_assert(following_frame == NULL ||
1898 following_frame->num >= selected_frame->num);
1899 g_assert(preceding_frame == NULL ||
1900 preceding_frame->num <= selected_frame->num);
1901 if (following_frame == NULL) {
1902 /* No frame after the selected frame passed the filter, so we
1903 have to select the last displayed frame before the selected
1905 selected_frame_num = preceding_frame_num;
1906 selected_frame = preceding_frame;
1907 } else if (preceding_frame == NULL) {
1908 /* No frame before the selected frame passed the filter, so we
1909 have to select the first displayed frame after the selected
1911 selected_frame_num = following_frame_num;
1912 selected_frame = following_frame;
1914 /* Frames before and after the selected frame passed the filter, so
1915 we'll select the previous frame */
1916 selected_frame_num = preceding_frame_num;
1917 selected_frame = preceding_frame;
1922 if (selected_frame_num == -1) {
1923 /* There are no frames displayed at all. */
1924 cf_unselect_packet(cf);
1926 /* Either the frame that was selected passed the filter, or we've
1927 found the nearest displayed frame to that frame. Select it, make
1928 it the focus row, and make it visible. */
1929 /* Set to invalid to force update of packet list and packet details */
1930 cf->current_row = -1;
1931 if (selected_frame_num == 0) {
1932 new_packet_list_select_first_row();
1934 if (!new_packet_list_select_row_from_data(selected_frame)) {
1935 /* We didn't find a row corresponding to this frame.
1936 This means that the frame isn't being displayed currently,
1937 so we can't select it. */
1938 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1939 "%sEnd of capture exceeded!%s\n\n"
1940 "The capture file is probably not fully dissected.",
1941 simple_dialog_primary_start(), simple_dialog_primary_end());
1946 /* Cleanup and release all dfilter resources */
1947 dfilter_free(dfcode);
1952 * Scan trough all frame data and recalculate the ref time
1953 * without rereading the file.
1954 * XXX - do we need a progres bar or is this fast enough?
1957 ref_time_packets(capture_file *cf)
1962 nstime_set_unset(&first_ts);
1963 nstime_set_unset(&prev_dis_ts);
1966 for (framenum = 1; framenum <= cf->count; framenum++) {
1967 fdata = frame_data_sequence_find(cf->frames, framenum);
1969 /* just add some value here until we know if it is being displayed or not */
1970 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1976 /* If we don't have the time stamp of the first packet in the
1977 capture, it's because this is the first packet. Save the time
1978 stamp of this packet as the time stamp of the first packet. */
1979 if (nstime_is_unset(&first_ts)) {
1980 first_ts = fdata->abs_ts;
1982 /* if this frames is marked as a reference time frame, reset
1983 firstsec and firstusec to this frame */
1984 if(fdata->flags.ref_time){
1985 first_ts = fdata->abs_ts;
1988 /* If we don't have the time stamp of the previous displayed packet,
1989 it's because this is the first displayed packet. Save the time
1990 stamp of this packet as the time stamp of the previous displayed
1992 if (nstime_is_unset(&prev_dis_ts)) {
1993 prev_dis_ts = fdata->abs_ts;
1996 /* Get the time elapsed between the first packet and this packet. */
1997 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1999 /* If it's greater than the current elapsed time, set the elapsed time
2000 to it (we check for "greater than" so as not to be confused by
2001 time moving backwards). */
2002 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2003 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2004 cf->elapsed_time = fdata->rel_ts;
2007 /* If this frame is displayed, get the time elapsed between the
2008 previous displayed packet and this packet. */
2009 if( fdata->flags.passed_dfilter ) {
2010 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2011 prev_dis_ts = fdata->abs_ts;
2017 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2018 /* This frame either passed the display filter list or is marked as
2019 a time reference frame. All time reference frames are displayed
2020 even if they dont pass the display filter */
2021 if(fdata->flags.ref_time){
2022 /* if this was a TIME REF frame we should reset the cum_bytes field */
2023 cum_bytes = fdata->pkt_len;
2024 fdata->cum_bytes = cum_bytes;
2026 /* increase cum_bytes with this packets length */
2027 cum_bytes += fdata->pkt_len;
2040 process_specified_packets(capture_file *cf, packet_range_t *range,
2041 const char *string1, const char *string2, gboolean terminate_is_stop,
2042 gboolean (*callback)(capture_file *, frame_data *,
2043 union wtap_pseudo_header *, const guint8 *, void *),
2044 void *callback_args)
2048 union wtap_pseudo_header pseudo_header;
2049 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2050 psp_return_t ret = PSP_FINISHED;
2052 progdlg_t *progbar = NULL;
2055 gboolean progbar_stop_flag;
2056 GTimeVal progbar_start_time;
2057 gchar progbar_status_str[100];
2058 int progbar_nextstep;
2059 int progbar_quantum;
2060 range_process_e process_this;
2062 /* Update the progress bar when it gets to this value. */
2063 progbar_nextstep = 0;
2064 /* When we reach the value that triggers a progress bar update,
2065 bump that value by this amount. */
2066 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2067 /* Count of packets at which we've looked. */
2069 /* Progress so far. */
2072 progbar_stop_flag = FALSE;
2073 g_get_current_time(&progbar_start_time);
2075 packet_range_process_init(range);
2077 /* Iterate through all the packets, printing the packets that
2078 were selected by the current display filter. */
2079 for (framenum = 1; framenum <= cf->count; framenum++) {
2080 fdata = frame_data_sequence_find(cf->frames, framenum);
2082 /* Create the progress bar if necessary.
2083 We check on every iteration of the loop, so that it takes no
2084 longer than the standard time to create it (otherwise, for a
2085 large file, we might take considerably longer than that standard
2086 time in order to get to the next progress bar step). */
2087 if (progbar == NULL)
2088 progbar = delayed_create_progress_dlg(string1, string2,
2091 &progbar_start_time,
2094 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2095 when we update it, we have to run the GTK+ main loop to get it
2096 to repaint what's pending, and doing so may involve an "ioctl()"
2097 to see if there's any pending input from an X server, and doing
2098 that for every packet can be costly, especially on a big file. */
2099 if (progbar_count >= progbar_nextstep) {
2100 /* let's not divide by zero. I should never be started
2101 * with count == 0, so let's assert that
2103 g_assert(cf->count > 0);
2104 progbar_val = (gfloat) progbar_count / cf->count;
2106 if (progbar != NULL) {
2107 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2108 "%4u of %u packets", progbar_count, cf->count);
2109 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2112 progbar_nextstep += progbar_quantum;
2115 if (progbar_stop_flag) {
2116 /* Well, the user decided to abort the operation. Just stop,
2117 and arrange to return PSP_STOPPED to our caller, so they know
2118 it was stopped explicitly. */
2125 /* do we have to process this packet? */
2126 process_this = packet_range_process_packet(range, fdata);
2127 if (process_this == range_process_next) {
2128 /* this packet uninteresting, continue with next one */
2130 } else if (process_this == range_processing_finished) {
2131 /* all interesting packets processed, stop the loop */
2135 /* Get the packet */
2136 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2137 /* Attempt to get the packet failed. */
2141 /* Process the packet */
2142 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2143 /* Callback failed. We assume it reported the error appropriately. */
2149 /* We're done printing the packets; destroy the progress bar if
2151 if (progbar != NULL)
2152 destroy_progress_dlg(progbar);
2158 gboolean construct_protocol_tree;
2160 } retap_callback_args_t;
2163 retap_packet(capture_file *cf _U_, frame_data *fdata,
2164 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2167 retap_callback_args_t *args = argsp;
2170 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2171 tap_queue_init(&edt);
2172 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2173 tap_push_tapped_queue(&edt);
2174 epan_dissect_cleanup(&edt);
2180 cf_retap_packets(capture_file *cf)
2182 packet_range_t range;
2183 retap_callback_args_t callback_args;
2184 gboolean filtering_tap_listeners;
2187 /* Do we have any tap listeners with filters? */
2188 filtering_tap_listeners = have_filtering_tap_listeners();
2190 tap_flags = union_of_tap_listener_flags();
2192 /* If any tap listeners have filters, or require the protocol tree,
2193 construct the protocol tree. */
2194 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2195 (tap_flags & TL_REQUIRES_PROTO_TREE);
2197 /* If any tap listeners require the columns, construct them. */
2198 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2200 /* Reset the tap listeners. */
2201 reset_tap_listeners();
2203 /* Iterate through the list of packets, dissecting all packets and
2204 re-running the taps. */
2205 packet_range_init(&range);
2206 packet_range_process_init(&range);
2207 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2208 "all packets", TRUE, retap_packet,
2211 /* Completed successfully. */
2215 /* Well, the user decided to abort the refiltering.
2216 Return CF_READ_ABORTED so our caller knows they did that. */
2217 return CF_READ_ABORTED;
2220 /* Error while retapping. */
2221 return CF_READ_ERROR;
2224 g_assert_not_reached();
2229 print_args_t *print_args;
2230 gboolean print_header_line;
2231 char *header_line_buf;
2232 int header_line_buf_len;
2233 gboolean print_formfeed;
2234 gboolean print_separator;
2238 } print_callback_args_t;
2241 print_packet(capture_file *cf, frame_data *fdata,
2242 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2245 print_callback_args_t *args = argsp;
2252 gboolean proto_tree_needed;
2253 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2254 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2256 /* Create the protocol tree, and make it visible, if we're printing
2257 the dissection or the hex data.
2258 XXX - do we need it if we're just printing the hex data? */
2260 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2261 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2263 /* Fill in the column information if we're printing the summary
2265 if (args->print_args->print_summary) {
2266 col_custom_prime_edt(&edt, &cf->cinfo);
2267 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2268 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2270 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2272 if (args->print_formfeed) {
2273 if (!new_page(args->print_args->stream))
2276 if (args->print_separator) {
2277 if (!print_line(args->print_args->stream, 0, ""))
2283 * We generate bookmarks, if the output format supports them.
2284 * The name is "__frameN__".
2286 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2288 if (args->print_args->print_summary) {
2289 if (args->print_header_line) {
2290 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2292 args->print_header_line = FALSE; /* we might not need to print any more */
2294 cp = &args->line_buf[0];
2296 for (i = 0; i < cf->cinfo.num_cols; i++) {
2297 /* Find the length of the string for this column. */
2298 column_len = (int) strlen(cf->cinfo.col_data[i]);
2299 if (args->col_widths[i] > column_len)
2300 column_len = args->col_widths[i];
2302 /* Make sure there's room in the line buffer for the column; if not,
2303 double its length. */
2304 line_len += column_len + 1; /* "+1" for space */
2305 if (line_len > args->line_buf_len) {
2306 cp_off = (int) (cp - args->line_buf);
2307 args->line_buf_len = 2 * line_len;
2308 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2309 cp = args->line_buf + cp_off;
2312 /* Right-justify the packet number column. */
2313 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2314 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2316 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2318 if (i != cf->cinfo.num_cols - 1)
2324 * Generate a bookmark, using the summary line as the title.
2326 if (!print_bookmark(args->print_args->stream, bookmark_name,
2330 if (!print_line(args->print_args->stream, 0, args->line_buf))
2334 * Generate a bookmark, using "Frame N" as the title, as we're not
2335 * printing the summary line.
2337 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2338 if (!print_bookmark(args->print_args->stream, bookmark_name,
2341 } /* if (print_summary) */
2343 if (args->print_args->print_dissections != print_dissections_none) {
2344 if (args->print_args->print_summary) {
2345 /* Separate the summary line from the tree with a blank line. */
2346 if (!print_line(args->print_args->stream, 0, ""))
2350 /* Print the information in that tree. */
2351 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2354 /* Print a blank line if we print anything after this (aka more than one packet). */
2355 args->print_separator = TRUE;
2357 /* Print a header line if we print any more packet summaries */
2358 args->print_header_line = TRUE;
2361 if (args->print_args->print_hex) {
2362 /* Print the full packet data as hex. */
2363 if (!print_hex_data(args->print_args->stream, &edt))
2366 /* Print a blank line if we print anything after this (aka more than one packet). */
2367 args->print_separator = TRUE;
2369 /* Print a header line if we print any more packet summaries */
2370 args->print_header_line = TRUE;
2371 } /* if (args->print_args->print_dissections != print_dissections_none) */
2373 epan_dissect_cleanup(&edt);
2375 /* do we want to have a formfeed between each packet from now on? */
2376 if(args->print_args->print_formfeed) {
2377 args->print_formfeed = TRUE;
2383 epan_dissect_cleanup(&edt);
2388 cf_print_packets(capture_file *cf, print_args_t *print_args)
2391 print_callback_args_t callback_args;
2399 callback_args.print_args = print_args;
2400 callback_args.print_header_line = TRUE;
2401 callback_args.header_line_buf = NULL;
2402 callback_args.header_line_buf_len = 256;
2403 callback_args.print_formfeed = FALSE;
2404 callback_args.print_separator = FALSE;
2405 callback_args.line_buf = NULL;
2406 callback_args.line_buf_len = 256;
2407 callback_args.col_widths = NULL;
2409 if (!print_preamble(print_args->stream, cf->filename)) {
2410 destroy_print_stream(print_args->stream);
2411 return CF_PRINT_WRITE_ERROR;
2414 if (print_args->print_summary) {
2415 /* We're printing packet summaries. Allocate the header line buffer
2416 and get the column widths. */
2417 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2419 /* Find the widths for each of the columns - maximum of the
2420 width of the title and the width of the data - and construct
2421 a buffer with a line containing the column titles. */
2422 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2423 cp = &callback_args.header_line_buf[0];
2425 for (i = 0; i < cf->cinfo.num_cols; i++) {
2426 /* Don't pad the last column. */
2427 if (i == cf->cinfo.num_cols - 1)
2428 callback_args.col_widths[i] = 0;
2430 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2431 data_width = get_column_char_width(get_column_format(i));
2432 if (data_width > callback_args.col_widths[i])
2433 callback_args.col_widths[i] = data_width;
2436 /* Find the length of the string for this column. */
2437 column_len = (int) strlen(cf->cinfo.col_title[i]);
2438 if (callback_args.col_widths[i] > column_len)
2439 column_len = callback_args.col_widths[i];
2441 /* Make sure there's room in the line buffer for the column; if not,
2442 double its length. */
2443 line_len += column_len + 1; /* "+1" for space */
2444 if (line_len > callback_args.header_line_buf_len) {
2445 cp_off = (int) (cp - callback_args.header_line_buf);
2446 callback_args.header_line_buf_len = 2 * line_len;
2447 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2448 callback_args.header_line_buf_len + 1);
2449 cp = callback_args.header_line_buf + cp_off;
2452 /* Right-justify the packet number column. */
2453 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2454 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2456 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2458 if (i != cf->cinfo.num_cols - 1)
2463 /* Now start out the main line buffer with the same length as the
2464 header line buffer. */
2465 callback_args.line_buf_len = callback_args.header_line_buf_len;
2466 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2467 } /* if (print_summary) */
2469 /* Iterate through the list of packets, printing the packets we were
2471 ret = process_specified_packets(cf, &print_args->range, "Printing",
2472 "selected packets", TRUE, print_packet,
2475 g_free(callback_args.header_line_buf);
2476 g_free(callback_args.line_buf);
2477 g_free(callback_args.col_widths);
2482 /* Completed successfully. */
2486 /* Well, the user decided to abort the printing.
2488 XXX - note that what got generated before they did that
2489 will get printed if we're piping to a print program; we'd
2490 have to write to a file and then hand that to the print
2491 program to make it actually not print anything. */
2495 /* Error while printing.
2497 XXX - note that what got generated before they did that
2498 will get printed if we're piping to a print program; we'd
2499 have to write to a file and then hand that to the print
2500 program to make it actually not print anything. */
2501 destroy_print_stream(print_args->stream);
2502 return CF_PRINT_WRITE_ERROR;
2505 if (!print_finale(print_args->stream)) {
2506 destroy_print_stream(print_args->stream);
2507 return CF_PRINT_WRITE_ERROR;
2510 if (!destroy_print_stream(print_args->stream))
2511 return CF_PRINT_WRITE_ERROR;
2517 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2518 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2524 /* Create the protocol tree, but don't fill in the column information. */
2525 epan_dissect_init(&edt, TRUE, TRUE);
2526 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2528 /* Write out the information in that tree. */
2529 proto_tree_write_pdml(&edt, fh);
2531 epan_dissect_cleanup(&edt);
2537 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2542 fh = ws_fopen(print_args->file, "w");
2544 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2546 write_pdml_preamble(fh, cf->filename);
2549 return CF_PRINT_WRITE_ERROR;
2552 /* Iterate through the list of packets, printing the packets we were
2554 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2555 "selected packets", TRUE,
2556 write_pdml_packet, fh);
2561 /* Completed successfully. */
2565 /* Well, the user decided to abort the printing. */
2569 /* Error while printing. */
2571 return CF_PRINT_WRITE_ERROR;
2574 write_pdml_finale(fh);
2577 return CF_PRINT_WRITE_ERROR;
2580 /* XXX - check for an error */
2587 write_psml_packet(capture_file *cf, frame_data *fdata,
2588 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2593 gboolean proto_tree_needed;
2595 /* Fill in the column information, only create the protocol tree
2596 if having custom columns. */
2597 proto_tree_needed = have_custom_cols(&cf->cinfo);
2598 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2599 col_custom_prime_edt(&edt, &cf->cinfo);
2600 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2601 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2603 /* Write out the information in that tree. */
2604 proto_tree_write_psml(&edt, fh);
2606 epan_dissect_cleanup(&edt);
2612 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2617 fh = ws_fopen(print_args->file, "w");
2619 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2621 write_psml_preamble(fh);
2624 return CF_PRINT_WRITE_ERROR;
2627 /* Iterate through the list of packets, printing the packets we were
2629 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2630 "selected packets", TRUE,
2631 write_psml_packet, fh);
2636 /* Completed successfully. */
2640 /* Well, the user decided to abort the printing. */
2644 /* Error while printing. */
2646 return CF_PRINT_WRITE_ERROR;
2649 write_psml_finale(fh);
2652 return CF_PRINT_WRITE_ERROR;
2655 /* XXX - check for an error */
2662 write_csv_packet(capture_file *cf, frame_data *fdata,
2663 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2668 gboolean proto_tree_needed;
2670 /* Fill in the column information, only create the protocol tree
2671 if having custom columns. */
2672 proto_tree_needed = have_custom_cols(&cf->cinfo);
2673 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2674 col_custom_prime_edt(&edt, &cf->cinfo);
2675 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2676 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2678 /* Write out the information in that tree. */
2679 proto_tree_write_csv(&edt, fh);
2681 epan_dissect_cleanup(&edt);
2687 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2692 fh = ws_fopen(print_args->file, "w");
2694 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2696 write_csv_preamble(fh);
2699 return CF_PRINT_WRITE_ERROR;
2702 /* Iterate through the list of packets, printing the packets we were
2704 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2705 "selected packets", TRUE,
2706 write_csv_packet, fh);
2711 /* Completed successfully. */
2715 /* Well, the user decided to abort the printing. */
2719 /* Error while printing. */
2721 return CF_PRINT_WRITE_ERROR;
2724 write_csv_finale(fh);
2727 return CF_PRINT_WRITE_ERROR;
2730 /* XXX - check for an error */
2737 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2738 union wtap_pseudo_header *pseudo_header,
2739 const guint8 *pd, void *argsp)
2744 epan_dissect_init(&edt, TRUE, TRUE);
2745 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2746 proto_tree_write_carrays(fdata->num, fh, &edt);
2747 epan_dissect_cleanup(&edt);
2753 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2758 fh = ws_fopen(print_args->file, "w");
2761 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2763 write_carrays_preamble(fh);
2767 return CF_PRINT_WRITE_ERROR;
2770 /* Iterate through the list of packets, printing the packets we were
2772 ret = process_specified_packets(cf, &print_args->range,
2774 "selected packets", TRUE,
2775 write_carrays_packet, fh);
2778 /* Completed successfully. */
2781 /* Well, the user decided to abort the printing. */
2784 /* Error while printing. */
2786 return CF_PRINT_WRITE_ERROR;
2789 write_carrays_finale(fh);
2793 return CF_PRINT_WRITE_ERROR;
2801 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2802 search_direction dir)
2806 mdata.string = string;
2807 mdata.string_len = strlen(string);
2808 return find_packet(cf, match_protocol_tree, &mdata, dir);
2812 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2814 mdata->frame_matched = FALSE;
2815 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2816 mdata->string_len = strlen(mdata->string);
2818 /* Iterate through all the nodes looking for matching text */
2819 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2820 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2824 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2826 match_data *mdata = criterion;
2829 /* Load the frame's data. */
2830 if (!cf_read_frame(cf, fdata)) {
2831 /* Attempt to get the packet failed. */
2835 /* Construct the protocol tree, including the displayed text */
2836 epan_dissect_init(&edt, TRUE, TRUE);
2837 /* We don't need the column information */
2838 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2840 /* Iterate through all the nodes, seeing if they have text that matches. */
2842 mdata->frame_matched = FALSE;
2843 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2844 epan_dissect_cleanup(&edt);
2845 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2849 match_subtree_text(proto_node *node, gpointer data)
2851 match_data *mdata = (match_data*) data;
2852 const gchar *string = mdata->string;
2853 size_t string_len = mdata->string_len;
2854 capture_file *cf = mdata->cf;
2855 field_info *fi = PNODE_FINFO(node);
2856 gchar label_str[ITEM_LABEL_LENGTH];
2863 g_assert(fi && "dissection with an invisible proto tree?");
2865 if (mdata->frame_matched) {
2866 /* We already had a match; don't bother doing any more work. */
2870 /* Don't match invisible entries. */
2871 if (PROTO_ITEM_IS_HIDDEN(node))
2874 /* was a free format label produced? */
2876 label_ptr = fi->rep->representation;
2878 /* no, make a generic label */
2879 label_ptr = label_str;
2880 proto_item_fill_label(fi, label_str);
2883 /* Does that label match? */
2884 label_len = strlen(label_ptr);
2885 for (i = 0; i < label_len; i++) {
2886 c_char = label_ptr[i];
2888 c_char = toupper(c_char);
2889 if (c_char == string[c_match]) {
2891 if (c_match == string_len) {
2892 /* No need to look further; we have a match */
2893 mdata->frame_matched = TRUE;
2901 /* Recurse into the subtree, if it exists */
2902 if (node->first_child != NULL)
2903 proto_tree_children_foreach(node, match_subtree_text, mdata);
2907 cf_find_packet_summary_line(capture_file *cf, const char *string,
2908 search_direction dir)
2912 mdata.string = string;
2913 mdata.string_len = strlen(string);
2914 return find_packet(cf, match_summary_line, &mdata, dir);
2918 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2920 match_data *mdata = criterion;
2921 const gchar *string = mdata->string;
2922 size_t string_len = mdata->string_len;
2924 const char *info_column;
2925 size_t info_column_len;
2926 match_result result = MR_NOTMATCHED;
2932 /* Load the frame's data. */
2933 if (!cf_read_frame(cf, fdata)) {
2934 /* Attempt to get the packet failed. */
2938 /* Don't bother constructing the protocol tree */
2939 epan_dissect_init(&edt, FALSE, FALSE);
2940 /* Get the column information */
2941 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2943 /* Find the Info column */
2944 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2945 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2946 /* Found it. See if we match. */
2947 info_column = edt.pi.cinfo->col_data[colx];
2948 info_column_len = strlen(info_column);
2949 for (i = 0; i < info_column_len; i++) {
2950 c_char = info_column[i];
2952 c_char = toupper(c_char);
2953 if (c_char == string[c_match]) {
2955 if (c_match == string_len) {
2956 result = MR_MATCHED;
2965 epan_dissect_cleanup(&edt);
2972 } cbs_t; /* "Counted byte string" */
2975 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2976 search_direction dir)
2981 info.data_len = string_size;
2983 /* String or hex search? */
2985 /* String search - what type of string? */
2986 switch (cf->scs_type) {
2988 case SCS_ASCII_AND_UNICODE:
2989 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2992 return find_packet(cf, match_ascii, &info, dir);
2995 return find_packet(cf, match_unicode, &info, dir);
2998 g_assert_not_reached();
3002 return find_packet(cf, match_binary, &info, dir);
3006 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3008 cbs_t *info = criterion;
3009 const guint8 *ascii_text = info->data;
3010 size_t textlen = info->data_len;
3011 match_result result;
3017 /* Load the frame's data. */
3018 if (!cf_read_frame(cf, fdata)) {
3019 /* Attempt to get the packet failed. */
3023 result = MR_NOTMATCHED;
3024 buf_len = fdata->pkt_len;
3026 while (i < buf_len) {
3029 c_char = toupper(c_char);
3030 if (c_char != '\0') {
3031 if (c_char == ascii_text[c_match]) {
3033 if (c_match == textlen) {
3034 result = MR_MATCHED;
3035 cf->search_pos = i; /* Save the position of the last character
3036 for highlighting the field. */
3041 g_assert(i>=c_match);
3042 i -= (guint32)c_match;
3052 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3054 cbs_t *info = criterion;
3055 const guint8 *ascii_text = info->data;
3056 size_t textlen = info->data_len;
3057 match_result result;
3063 /* Load the frame's data. */
3064 if (!cf_read_frame(cf, fdata)) {
3065 /* Attempt to get the packet failed. */
3069 result = MR_NOTMATCHED;
3070 buf_len = fdata->pkt_len;
3072 while (i < buf_len) {
3075 c_char = toupper(c_char);
3076 if (c_char == ascii_text[c_match]) {
3078 if (c_match == textlen) {
3079 result = MR_MATCHED;
3080 cf->search_pos = i; /* Save the position of the last character
3081 for highlighting the field. */
3086 g_assert(i>=c_match);
3087 i -= (guint32)c_match;
3097 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3099 cbs_t *info = criterion;
3100 const guint8 *ascii_text = info->data;
3101 size_t textlen = info->data_len;
3102 match_result result;
3108 /* Load the frame's data. */
3109 if (!cf_read_frame(cf, fdata)) {
3110 /* Attempt to get the packet failed. */
3114 result = MR_NOTMATCHED;
3115 buf_len = fdata->pkt_len;
3117 while (i < buf_len) {
3120 c_char = toupper(c_char);
3121 if (c_char == ascii_text[c_match]) {
3123 if (c_match == textlen) {
3124 result = MR_MATCHED;
3125 cf->search_pos = i; /* Save the position of the last character
3126 for highlighting the field. */
3132 g_assert(i>=(c_match*2));
3133 i -= (guint32)c_match*2;
3142 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3144 cbs_t *info = criterion;
3145 const guint8 *binary_data = info->data;
3146 size_t datalen = info->data_len;
3147 match_result result;
3152 /* Load the frame's data. */
3153 if (!cf_read_frame(cf, fdata)) {
3154 /* Attempt to get the packet failed. */
3158 result = MR_NOTMATCHED;
3159 buf_len = fdata->pkt_len;
3161 while (i < buf_len) {
3162 if (cf->pd[i] == binary_data[c_match]) {
3164 if (c_match == datalen) {
3165 result = MR_MATCHED;
3166 cf->search_pos = i; /* Save the position of the last character
3167 for highlighting the field. */
3172 g_assert(i>=c_match);
3173 i -= (guint32)c_match;
3182 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3183 search_direction dir)
3185 return find_packet(cf, match_dfilter, sfcode, dir);
3189 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3190 search_direction dir)
3195 if (!dfilter_compile(filter, &sfcode)) {
3197 * XXX - this shouldn't happen, as the filter string is machine
3202 if (sfcode == NULL) {
3204 * XXX - this shouldn't happen, as the filter string is machine
3209 result = find_packet(cf, match_dfilter, sfcode, dir);
3210 dfilter_free(sfcode);
3215 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3217 dfilter_t *sfcode = criterion;
3219 match_result result;
3221 /* Load the frame's data. */
3222 if (!cf_read_frame(cf, fdata)) {
3223 /* Attempt to get the packet failed. */
3227 epan_dissect_init(&edt, TRUE, FALSE);
3228 epan_dissect_prime_dfilter(&edt, sfcode);
3229 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3230 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3231 epan_dissect_cleanup(&edt);
3236 cf_find_packet_marked(capture_file *cf, search_direction dir)
3238 return find_packet(cf, match_marked, NULL, dir);
3242 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3244 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3248 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3250 return find_packet(cf, match_time_reference, NULL, dir);
3254 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3256 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3260 find_packet(capture_file *cf,
3261 match_result (*match_function)(capture_file *, frame_data *, void *),
3262 void *criterion, search_direction dir)
3264 frame_data *start_fd;
3267 frame_data *new_fd = NULL;
3268 progdlg_t *progbar = NULL;
3273 GTimeVal start_time;
3274 gchar status_str[100];
3275 int progbar_nextstep;
3276 int progbar_quantum;
3278 match_result result;
3280 start_fd = cf->current_frame;
3281 if (start_fd != NULL) {
3282 /* Iterate through the list of packets, starting at the packet we've
3283 picked, calling a routine to run the filter on the packet, see if
3284 it matches, and stop if so. */
3286 framenum = start_fd->num;
3288 /* Update the progress bar when it gets to this value. */
3289 progbar_nextstep = 0;
3290 /* When we reach the value that triggers a progress bar update,
3291 bump that value by this amount. */
3292 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3293 /* Progress so far. */
3297 g_get_current_time(&start_time);
3299 title = cf->sfilter?cf->sfilter:"";
3301 /* Create the progress bar if necessary.
3302 We check on every iteration of the loop, so that it takes no
3303 longer than the standard time to create it (otherwise, for a
3304 large file, we might take considerably longer than that standard
3305 time in order to get to the next progress bar step). */
3306 if (progbar == NULL)
3307 progbar = delayed_create_progress_dlg("Searching", title,
3308 FALSE, &stop_flag, &start_time, progbar_val);
3310 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3311 when we update it, we have to run the GTK+ main loop to get it
3312 to repaint what's pending, and doing so may involve an "ioctl()"
3313 to see if there's any pending input from an X server, and doing
3314 that for every packet can be costly, especially on a big file. */
3315 if (count >= progbar_nextstep) {
3316 /* let's not divide by zero. I should never be started
3317 * with count == 0, so let's assert that
3319 g_assert(cf->count > 0);
3321 progbar_val = (gfloat) count / cf->count;
3323 if (progbar != NULL) {
3324 g_snprintf(status_str, sizeof(status_str),
3325 "%4u of %u packets", count, cf->count);
3326 update_progress_dlg(progbar, progbar_val, status_str);
3329 progbar_nextstep += progbar_quantum;
3333 /* Well, the user decided to abort the search. Go back to the
3334 frame where we started. */
3339 /* Go past the current frame. */
3340 if (dir == SD_BACKWARD) {
3341 /* Go on to the previous frame. */
3342 if (framenum == 1) {
3344 * XXX - other apps have a bit more of a detailed message
3345 * for this, and instead of offering "OK" and "Cancel",
3346 * they offer things such as "Continue" and "Cancel";
3347 * we need an API for popping up alert boxes with
3348 * {Verb} and "Cancel".
3351 if (prefs.gui_find_wrap)
3353 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3354 framenum = cf->count; /* wrap around */
3358 statusbar_push_temporary_msg("Search reached the beginning.");
3359 framenum = start_fd->num; /* stay on previous packet */
3364 /* Go on to the next frame. */
3365 if (framenum == cf->count) {
3366 if (prefs.gui_find_wrap)
3368 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3369 framenum = 1; /* wrap around */
3373 statusbar_push_temporary_msg("Search reached the end.");
3374 framenum = start_fd->num; /* stay on previous packet */
3379 fdata = frame_data_sequence_find(cf->frames, framenum);
3383 /* Is this packet in the display? */
3384 if (fdata->flags.passed_dfilter) {
3385 /* Yes. Does it match the search criterion? */
3386 result = (*match_function)(cf, fdata, criterion);
3387 if (result == MR_ERROR) {
3388 /* Error; our caller has reported the error. Go back to the frame
3389 where we started. */
3392 } else if (result == MR_MATCHED) {
3393 /* Yes. Go to the new frame. */
3399 if (fdata == start_fd) {
3400 /* We're back to the frame we were on originally, and that frame
3401 doesn't match the search filter. The search failed. */
3406 /* We're done scanning the packets; destroy the progress bar if it
3408 if (progbar != NULL)
3409 destroy_progress_dlg(progbar);
3412 if (new_fd != NULL) {
3413 /* Find and select */
3414 cf->search_in_progress = TRUE;
3415 found = new_packet_list_select_row_from_data(new_fd);
3416 cf->search_in_progress = FALSE;
3417 cf->search_pos = 0; /* Reset the position */
3419 /* We didn't find a row corresponding to this frame.
3420 This means that the frame isn't being displayed currently,
3421 so we can't select it. */
3422 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3423 "%sEnd of capture exceeded!%s\n\n"
3424 "The capture file is probably not fully dissected.",
3425 simple_dialog_primary_start(), simple_dialog_primary_end());
3428 return TRUE; /* success */
3430 return FALSE; /* failure */
3434 cf_goto_frame(capture_file *cf, guint fnumber)
3438 fdata = frame_data_sequence_find(cf->frames, fnumber);
3440 if (fdata == NULL) {
3441 /* we didn't find a packet with that packet number */
3442 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3443 return FALSE; /* we failed to go to that packet */
3445 if (!fdata->flags.passed_dfilter) {
3446 /* that packet currently isn't displayed */
3447 /* XXX - add it to the set of displayed packets? */
3448 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3449 return FALSE; /* we failed to go to that packet */
3452 if (!new_packet_list_select_row_from_data(fdata)) {
3453 /* We didn't find a row corresponding to this frame.
3454 This means that the frame isn't being displayed currently,
3455 so we can't select it. */
3456 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3457 "%sEnd of capture exceeded!%s\n\n"
3458 "The capture file is probably not fully dissected.",
3459 simple_dialog_primary_start(), simple_dialog_primary_end());
3462 return TRUE; /* we got to that packet */
3466 cf_goto_top_frame(void)
3468 /* Find and select */
3469 new_packet_list_select_first_row();
3470 return TRUE; /* we got to that packet */
3474 cf_goto_bottom_frame(void)
3476 /* Find and select */
3477 new_packet_list_select_last_row();
3478 return TRUE; /* we got to that packet */
3482 * Go to frame specified by currently selected protocol tree item.
3485 cf_goto_framenum(capture_file *cf)
3487 header_field_info *hfinfo;
3490 if (cf->finfo_selected) {
3491 hfinfo = cf->finfo_selected->hfinfo;
3493 if (hfinfo->type == FT_FRAMENUM) {
3494 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3496 return cf_goto_frame(cf, framenum);
3503 /* Select the packet on a given row. */
3505 cf_select_packet(capture_file *cf, int row)
3509 /* Get the frame data struct pointer for this frame */
3510 fdata = new_packet_list_get_row_data(row);
3512 if (fdata == NULL) {
3513 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3514 the first entry is added to it by "real_insert_row()", that row
3515 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3516 our version and the vanilla GTK+ version).
3518 This means that a "select-row" signal is emitted; this causes
3519 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3522 "cf_select_packet()" fetches, above, the data associated with the
3523 row that was selected; however, as "gtk_clist_append()", which
3524 called "real_insert_row()", hasn't yet returned, we haven't yet
3525 associated any data with that row, so we get back a null pointer.
3527 We can't assume that there's only one frame in the frame list,
3528 either, as we may be filtering the display.
3530 We therefore assume that, if "row" is 0, i.e. the first row
3531 is being selected, and "cf->first_displayed" equals
3532 "cf->last_displayed", i.e. there's only one frame being
3533 displayed, that frame is the frame we want.
3535 This means we have to set "cf->first_displayed" and
3536 "cf->last_displayed" before adding the row to the
3537 GtkCList; see the comment in "add_packet_to_packet_list()". */
3539 if (row == 0 && cf->first_displayed == cf->last_displayed)
3540 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3543 /* If fdata _still_ isn't set simply give up. */
3544 if (fdata == NULL) {
3548 /* Get the data in that frame. */
3549 if (!cf_read_frame (cf, fdata)) {
3553 /* Record that this frame is the current frame. */
3554 cf->current_frame = fdata;
3555 cf->current_row = row;
3557 /* Create the logical protocol tree. */
3558 if (cf->edt != NULL)
3559 epan_dissect_free(cf->edt);
3561 /* We don't need the columns here. */
3562 cf->edt = epan_dissect_new(TRUE, TRUE);
3564 tap_build_interesting(cf->edt);
3565 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3568 dfilter_macro_build_ftv_cache(cf->edt->tree);
3570 cf_callback_invoke(cf_cb_packet_selected, cf);
3573 /* Unselect the selected packet, if any. */
3575 cf_unselect_packet(capture_file *cf)
3577 /* Destroy the epan_dissect_t for the unselected packet. */
3578 if (cf->edt != NULL) {
3579 epan_dissect_free(cf->edt);
3583 /* No packet is selected. */
3584 cf->current_frame = NULL;
3585 cf->current_row = 0;
3587 cf_callback_invoke(cf_cb_packet_unselected, cf);
3589 /* No protocol tree means no selected field. */
3590 cf_unselect_field(cf);
3593 /* Unset the selected protocol tree field, if any. */
3595 cf_unselect_field(capture_file *cf)
3597 cf->finfo_selected = NULL;
3599 cf_callback_invoke(cf_cb_field_unselected, cf);
3603 * Mark a particular frame.
3606 cf_mark_frame(capture_file *cf, frame_data *frame)
3608 if (! frame->flags.marked) {
3609 frame->flags.marked = TRUE;
3610 if (cf->count > cf->marked_count)
3616 * Unmark a particular frame.
3619 cf_unmark_frame(capture_file *cf, frame_data *frame)
3621 if (frame->flags.marked) {
3622 frame->flags.marked = FALSE;
3623 if (cf->marked_count > 0)
3629 * Ignore a particular frame.
3632 cf_ignore_frame(capture_file *cf, frame_data *frame)
3634 if (! frame->flags.ignored) {
3635 frame->flags.ignored = TRUE;
3636 if (cf->count > cf->ignored_count)
3637 cf->ignored_count++;
3642 * Un-ignore a particular frame.
3645 cf_unignore_frame(capture_file *cf, frame_data *frame)
3647 if (frame->flags.ignored) {
3648 frame->flags.ignored = FALSE;
3649 if (cf->ignored_count > 0)
3650 cf->ignored_count--;
3655 * Read the comment in SHB block
3659 cf_read_shb_comment(capture_file *cf)
3661 wtapng_section_t* shb_inf;
3662 const gchar *temp_str;
3665 /* Get info from SHB */
3666 shb_inf = wtap_file_get_shb_info(cf->wth);
3669 temp_str = shb_inf->opt_comment;
3677 cf_update_capture_comment(capture_file *cf, gchar *comment)
3680 /* Get info from SHB */
3681 wtap_write_shb_comment(cf->wth, comment);
3689 } save_callback_args_t;
3692 * Save a capture to a file, in a particular format, saving either
3693 * all packets, all currently-displayed packets, or all marked packets.
3695 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3696 * up a message box for the failure.
3699 save_packet(capture_file *cf _U_, frame_data *fdata,
3700 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3703 save_callback_args_t *args = argsp;
3704 struct wtap_pkthdr hdr;
3707 /* init the wtap header for saving */
3708 hdr.ts.secs = fdata->abs_ts.secs;
3709 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3710 hdr.caplen = fdata->cap_len;
3711 hdr.len = fdata->pkt_len;
3712 hdr.pkt_encap = fdata->lnk_t;
3714 hdr.interface_id = fdata->interface_id; /* identifier of the interface. */
3716 hdr.opt_comment = fdata->opt_comment; /* NULL if not available */
3719 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
3721 /* and save the packet */
3722 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3724 /* Wiretap error. */
3727 case WTAP_ERR_UNSUPPORTED_ENCAP:
3729 * This is a problem with the particular frame we're writing;
3730 * note that, and give the frame number.
3732 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3733 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3734 fdata->num, wtap_file_type_string(args->file_type));
3738 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3739 "An error occurred while writing to the file \"%s\": %s.",
3740 args->fname, wtap_strerror(err));
3745 write_failure_alert_box(args->fname, err);
3753 * Can this capture file be saved in any format except by copying the raw data?
3756 cf_can_save_as(capture_file *cf)
3760 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3761 /* To save a file with Wiretap, Wiretap has to handle that format,
3762 and its code to handle that format must be able to write a file
3763 with this file's encapsulation type. */
3764 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3765 /* OK, we can write it out in this type. */
3770 /* No, we couldn't save it in any format. */
3775 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3777 gchar *from_filename;
3781 save_callback_args_t callback_args;
3783 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3785 /* don't write over an existing file. */
3786 /* this should've been already checked by our caller, just to be sure... */
3787 if (file_exists(fname)) {
3788 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3789 "%sCapture file: \"%s\" already exists!%s\n\n"
3790 "Please choose a different filename.",
3791 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3795 packet_range_process_init(range);
3797 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3798 /* We're not filtering packets, and we're saving it in the format
3799 it's already in, so we can just move or copy the raw data. */
3801 if (cf->is_tempfile) {
3802 /* The file being saved is a temporary file from a live
3803 capture, so it doesn't need to stay around under that name;
3804 first, try renaming the capture buffer file to the new name. */
3806 if (ws_rename(cf->filename, fname) == 0) {
3807 /* That succeeded - there's no need to copy the source file. */
3808 from_filename = NULL;
3811 if (errno == EXDEV) {
3812 /* They're on different file systems, so we have to copy the
3815 from_filename = cf->filename;
3817 /* The rename failed, but not because they're on different
3818 file systems - put up an error message. (Or should we
3819 just punt and try to copy? The only reason why I'd
3820 expect the rename to fail and the copy to succeed would
3821 be if we didn't have permission to remove the file from
3822 the temporary directory, and that might be fixable - but
3823 is it worth requiring the user to go off and fix it?) */
3824 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3825 file_rename_error_message(errno), fname);
3831 from_filename = cf->filename;
3834 /* It's a permanent file, so we should copy it, and not remove the
3837 from_filename = cf->filename;
3841 /* Copy the file, if we haven't moved it. */
3842 if (!copy_file_binary_mode(from_filename, fname))
3846 /* Either we're filtering packets, or we're saving in a different
3847 format; we can't do that by copying or moving the capture file,
3848 we have to do it by writing the packets out in Wiretap. */
3850 wtapng_section_t *shb_hdr = NULL;
3851 wtapng_iface_descriptions_t *idb_inf = NULL;
3853 shb_hdr = wtap_file_get_shb_info(cf->wth);
3854 idb_inf = wtap_file_get_idb_info(cf->wth);
3856 pdh = wtap_dump_open_ng(fname, save_format, cf->lnk_t, cf->snap,
3857 compressed, shb_hdr, idb_inf, &err);
3859 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3863 /* Add address resolution */
3864 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
3866 /* XXX - we let the user save a subset of the packets.
3868 If we do that, should we make that file the current file? If so,
3869 it means we can no longer get at the other packets. What does
3872 /* Iterate through the list of packets, processing the packets we were
3875 XXX - we've already called "packet_range_process_init(range)", but
3876 "process_specified_packets()" will do it again. Fortunately,
3877 that's harmless in this case, as we haven't done anything to
3878 "range" since we initialized it. */
3879 callback_args.pdh = pdh;
3880 callback_args.fname = fname;
3881 callback_args.file_type = save_format;
3882 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3883 TRUE, save_packet, &callback_args)) {
3886 /* Completed successfully. */
3890 /* The user decided to abort the saving.
3891 XXX - remove the output file? */
3895 /* Error while saving. */
3896 wtap_dump_close(pdh, &err);
3900 if (!wtap_dump_close(pdh, &err)) {
3901 cf_close_failure_alert_box(fname, err);
3906 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3908 if (packet_range_process_all(range)) {
3909 /* We saved the entire capture, not just some packets from it.
3910 Open and read the file we saved it to.
3912 XXX - this is somewhat of a waste; we already have the
3913 packets, all this gets us is updated file type information
3914 (which we could just stuff into "cf"), and having the new
3915 file be the one we have opened and from which we're reading
3916 the data, and it means we have to spend time opening and
3917 reading the file, which could be a significant amount of
3918 time if the file is large. */
3919 cf->user_saved = TRUE;
3921 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3922 /* XXX - report errors if this fails?
3923 What should we return if it fails or is aborted? */
3925 switch (cf_read(cf, TRUE)) {
3929 /* Just because we got an error, that doesn't mean we were unable
3930 to read any of the file; we handle what we could get from the
3934 case CF_READ_ABORTED:
3935 /* The user bailed out of re-reading the capture file; the
3936 capture file has been closed - just return (without
3937 changing any menu settings; "cf_close()" set them
3938 correctly for the "no capture file open" state). */
3941 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3947 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3952 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3953 gboolean for_writing, int file_type)
3956 /* Wiretap error. */
3959 case WTAP_ERR_NOT_REGULAR_FILE:
3960 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3961 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3965 case WTAP_ERR_RANDOM_OPEN_PIPE:
3966 /* Seen only when opening a capture file for reading. */
3967 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3968 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3972 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3973 /* Seen only when opening a capture file for reading. */
3974 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3975 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3979 case WTAP_ERR_UNSUPPORTED:
3980 /* Seen only when opening a capture file for reading. */
3981 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3982 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3984 filename, err_info);
3988 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3989 /* Seen only when opening a capture file for writing. */
3990 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3991 "The file \"%s\" is a pipe, and %s capture files can't be "
3992 "written to a pipe.",
3993 filename, wtap_file_type_string(file_type));
3996 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3997 /* Seen only when opening a capture file for writing. */
3998 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3999 "Wireshark doesn't support writing capture files in that format.");
4002 case WTAP_ERR_UNSUPPORTED_ENCAP:
4004 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4005 "Wireshark can't save this capture in that format.");
4007 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4008 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4010 filename, err_info);
4015 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4017 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4018 "Wireshark can't save this capture in that format.");
4020 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4021 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4026 case WTAP_ERR_BAD_FILE:
4027 /* Seen only when opening a capture file for reading. */
4028 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4029 "The file \"%s\" appears to be damaged or corrupt.\n"
4031 filename, err_info);
4035 case WTAP_ERR_CANT_OPEN:
4037 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4038 "The file \"%s\" could not be created for some unknown reason.",
4041 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4042 "The file \"%s\" could not be opened for some unknown reason.",
4047 case WTAP_ERR_SHORT_READ:
4048 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4049 "The file \"%s\" appears to have been cut short"
4050 " in the middle of a packet or other data.",
4054 case WTAP_ERR_SHORT_WRITE:
4055 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4056 "A full header couldn't be written to the file \"%s\".",
4060 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4061 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4062 "This file type cannot be written as a compressed file.");
4065 case WTAP_ERR_DECOMPRESS:
4066 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4067 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
4068 "(%s)", filename, err_info);
4073 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4074 "The file \"%s\" could not be %s: %s.",
4076 for_writing ? "created" : "opened",
4077 wtap_strerror(err));
4082 open_failure_alert_box(filename, err, for_writing);
4087 file_rename_error_message(int err)
4090 static char errmsg_errno[1024+1];
4095 errmsg = "The path to the file \"%s\" doesn't exist.";
4099 errmsg = "You don't have permission to move the capture file to \"%s\".";
4103 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4104 "The file \"%%s\" could not be moved: %s.",
4105 wtap_strerror(err));
4106 errmsg = errmsg_errno;
4112 /* Check for write errors - if the file is being written to an NFS server,
4113 a write error may not show up until the file is closed, as NFS clients
4114 might not send writes to the server until the "write()" call finishes,
4115 so that the write may fail on the server but the "write()" may succeed. */
4117 cf_close_failure_alert_box(const char *filename, int err)
4120 /* Wiretap error. */
4123 case WTAP_ERR_CANT_CLOSE:
4124 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4125 "The file \"%s\" couldn't be closed for some unknown reason.",
4129 case WTAP_ERR_SHORT_WRITE:
4130 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4131 "Not all the packets could be written to the file \"%s\".",
4136 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4137 "An error occurred while closing the file \"%s\": %s.",
4138 filename, wtap_strerror(err));
4143 We assume that a close error from the OS is really a write error. */
4144 write_failure_alert_box(filename, err);
4148 /* Reload the current capture file. */
4150 cf_reload(capture_file *cf) {
4152 gboolean is_tempfile;
4155 /* If the file could be opened, "cf_open()" calls "cf_close()"
4156 to get rid of state for the old capture file before filling in state
4157 for the new capture file. "cf_close()" will remove the file if
4158 it's a temporary file; we don't want that to happen (for one thing,
4159 it'd prevent subsequent reopens from working). Remember whether it's
4160 a temporary file, mark it as not being a temporary file, and then
4161 reopen it as the type of file it was.
4163 Also, "cf_close()" will free "cf->filename", so we must make
4164 a copy of it first. */
4165 filename = g_strdup(cf->filename);
4166 is_tempfile = cf->is_tempfile;
4167 cf->is_tempfile = FALSE;
4168 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4169 switch (cf_read(cf, FALSE)) {
4173 /* Just because we got an error, that doesn't mean we were unable
4174 to read any of the file; we handle what we could get from the
4178 case CF_READ_ABORTED:
4179 /* The user bailed out of re-reading the capture file; the
4180 capture file has been closed - just free the capture file name
4181 string and return (without changing the last containing
4187 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4188 Instead, the file was left open, so we should restore "cf->is_tempfile"
4191 XXX - change the menu? Presumably "cf_open()" will do that;
4192 make sure it does! */
4193 cf->is_tempfile = is_tempfile;
4195 /* "cf_open()" made a copy of the file name we handed it, so
4196 we should free up our copy. */
4206 * indent-tabs-mode: nil
4209 * ex: set shiftwidth=2 tabstop=8 expandtab:
4210 * :indentSize=2:tabSize=8:noTabs=true: