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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 void cf_rename_failure_alert_box(const char *filename, 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 /* No user changes yet. */
310 cf->unsaved_changes = FALSE;
314 cf->cd_t = wtap_file_type(cf->wth);
315 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
317 cf->packet_comment_count = 0;
318 cf->displayed_count = 0;
319 cf->marked_count = 0;
320 cf->ignored_count = 0;
321 cf->ref_time_count = 0;
322 cf->drops_known = FALSE;
324 cf->snap = wtap_snapshot_length(cf->wth);
326 /* Snapshot length not known. */
327 cf->has_snap = FALSE;
328 cf->snap = WTAP_MAX_PACKET_SIZE;
332 /* Allocate a frame_data_sequence for the frames in this file */
333 cf->frames = new_frame_data_sequence();
335 nstime_set_zero(&cf->elapsed_time);
336 nstime_set_unset(&first_ts);
337 nstime_set_unset(&prev_dis_ts);
338 nstime_set_unset(&prev_cap_ts);
341 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
342 cf_timestamp_auto_precision(cf);
344 new_packet_list_queue_draw();
345 fileset_file_opened(fname);
347 if(cf->cd_t == WTAP_FILE_BER) {
348 /* tell the BER dissector the file name */
349 ber_set_filename(cf->filename);
352 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
353 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
358 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
363 * Add an encapsulation type to cf->linktypes.
366 cf_add_encapsulation_type(capture_file *cf, int encap)
370 for (i = 0; i < cf->linktypes->len; i++) {
371 if (g_array_index(cf->linktypes, gint, i) == encap)
372 return; /* it's already there */
374 /* It's not already there - add it. */
375 g_array_append_val(cf->linktypes, encap);
379 * Reset the state for the currently closed file, but don't do the
380 * UI callbacks; this is for use in "cf_open()", where we don't
381 * want the UI to go from "file open" to "file closed" back to
382 * "file open", we want it to go from "old file open" to "new file
383 * open and being read".
385 * XXX - currently, cf_open() calls cf_close(), rather than
389 cf_reset_state(capture_file *cf)
391 /* Die if we're in the middle of reading a file. */
392 g_assert(cf->state != FILE_READ_IN_PROGRESS);
398 /* We have no file open... */
399 if (cf->filename != NULL) {
400 /* If it's a temporary file, remove it. */
402 ws_unlink(cf->filename);
403 g_free(cf->filename);
406 /* ...which means we have no changes to that file to save. */
407 cf->unsaved_changes = FALSE;
409 dfilter_free(cf->rfcode);
411 if (cf->frames != NULL) {
412 free_frame_data_sequence(cf->frames);
415 #ifdef WANT_PACKET_EDITOR
416 if (cf->edited_frames) {
417 g_tree_destroy(cf->edited_frames);
418 cf->edited_frames = NULL;
421 cf_unselect_packet(cf); /* nothing to select */
422 cf->first_displayed = 0;
423 cf->last_displayed = 0;
425 /* No frames, no frame selected, no field in that frame selected. */
427 cf->current_frame = 0;
429 cf->finfo_selected = NULL;
431 /* No frame link-layer types, either. */
432 g_array_free(cf->linktypes, TRUE);
433 cf->linktypes = NULL;
435 /* Clear the packet list. */
436 new_packet_list_freeze();
437 new_packet_list_clear();
438 new_packet_list_thaw();
441 nstime_set_zero(&cf->elapsed_time);
443 reset_tap_listeners();
445 /* We have no file open. */
446 cf->state = FILE_CLOSED;
448 fileset_file_closed();
451 /* Reset everything to a pristine state */
453 cf_close(capture_file *cf)
455 if(cf->state != FILE_CLOSED) {
456 cf_callback_invoke(cf_cb_file_closing, cf);
458 /* close things, if not already closed before */
459 color_filters_cleanup();
461 cleanup_dissection();
463 cf_callback_invoke(cf_cb_file_closed, cf);
468 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
472 progbar_val = (gfloat) file_pos / (gfloat) size;
473 if (progbar_val > 1.0) {
475 /* The file probably grew while we were reading it.
476 * Update file size, and try again.
478 size = wtap_file_size(cf->wth, NULL);
481 progbar_val = (gfloat) file_pos / (gfloat) size;
483 /* If it's still > 1, either "wtap_file_size()" failed (in which
484 * case there's not much we can do about it), or the file
485 * *shrank* (in which case there's not much we can do about
486 * it); just clip the progress value at 1.0.
488 if (progbar_val > 1.0f)
492 g_snprintf(status_str, status_size,
493 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
494 file_pos / 1024, size / 1024);
500 cf_read(capture_file *cf, gboolean reloading)
507 progdlg_t *volatile progbar = NULL;
509 volatile gint64 size;
510 volatile float progbar_val;
512 gchar status_str[100];
513 volatile gint64 progbar_nextstep;
514 volatile gint64 progbar_quantum;
516 gboolean filtering_tap_listeners;
518 volatile int count = 0;
520 volatile int displayed_once = 0;
524 /* Compile the current display filter.
525 * We assume this will not fail since cf->dfilter is only set in
526 * cf_filter IFF the filter was valid.
528 compiled = dfilter_compile(cf->dfilter, &dfcode);
529 g_assert(!cf->dfilter || (compiled && dfcode));
531 /* Do we have any tap listeners with filters? */
532 filtering_tap_listeners = have_filtering_tap_listeners();
534 /* Get the union of the flags for all tap listeners. */
535 tap_flags = union_of_tap_listener_flags();
537 reset_tap_listeners();
539 name_ptr = g_filename_display_basename(cf->filename);
542 cf_callback_invoke(cf_cb_file_reload_started, cf);
544 cf_callback_invoke(cf_cb_file_read_started, cf);
546 /* Record whether the file is compressed.
547 XXX - do we know this at open time? */
548 cf->iscompressed = wtap_iscompressed(cf->wth);
550 /* Find the size of the file. */
551 size = wtap_file_size(cf->wth, NULL);
553 /* Update the progress bar when it gets to this value. */
554 progbar_nextstep = 0;
555 /* When we reach the value that triggers a progress bar update,
556 bump that value by this amount. */
558 progbar_quantum = size/N_PROGBAR_UPDATES;
559 if (progbar_quantum < MIN_QUANTUM)
560 progbar_quantum = MIN_QUANTUM;
563 /* Progress so far. */
566 /* The packet list window will be empty until the file is completly loaded */
567 new_packet_list_freeze();
570 g_get_current_time(&start_time);
572 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
575 file_pos = wtap_read_so_far(cf->wth);
577 /* Create the progress bar if necessary.
578 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
580 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
581 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
583 progbar = delayed_create_progress_dlg(cf->window, "Reloading", name_ptr,
584 TRUE, &stop_flag, &start_time, progbar_val);
586 progbar = delayed_create_progress_dlg(cf->window, "Loading", name_ptr,
587 TRUE, &stop_flag, &start_time, progbar_val);
590 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
591 when we update it, we have to run the GTK+ main loop to get it
592 to repaint what's pending, and doing so may involve an "ioctl()"
593 to see if there's any pending input from an X server, and doing
594 that for every packet can be costly, especially on a big file. */
595 if (file_pos >= progbar_nextstep) {
596 if (progbar != NULL) {
597 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
598 /* update the packet bar content on the first run or frequently on very large files */
600 if (progbar_quantum > 500000 || displayed_once == 0) {
601 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
603 packets_bar_update();
606 #endif /* HAVE_LIBPCAP */
607 update_progress_dlg(progbar, progbar_val, status_str);
609 progbar_nextstep += progbar_quantum;
614 /* Well, the user decided to abort the read. He/She will be warned and
615 it might be enough for him/her to work with the already loaded
617 This is especially true for very large capture files, where you don't
618 want to wait loading the whole file (which may last minutes or even
619 hours even on fast machines) just to see that it was the wrong file. */
623 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
625 CATCH(OutOfMemoryError) {
626 simple_message_box(ESD_TYPE_ERROR, NULL,
627 "Some infos / workarounds can be found at:\n"
628 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
629 "Sorry, but Wireshark has run out of memory and has to terminate now!");
631 /* Could we close the current capture and free up memory from that? */
634 /* we have to terminate, as we cannot recover from the memory error */
641 /* Free the display name */
644 /* Cleanup and release all dfilter resources */
646 dfilter_free(dfcode);
649 /* We're done reading the file; destroy the progress bar if it was created. */
651 destroy_progress_dlg(progbar);
653 /* We're done reading sequentially through the file. */
654 cf->state = FILE_READ_DONE;
656 /* Close the sequential I/O side, to free up memory it requires. */
657 wtap_sequential_close(cf->wth);
659 /* Allow the protocol dissectors to free up memory that they
660 * don't need after the sequential run-through of the packets. */
661 postseq_cleanup_all_protocols();
663 /* compute the time it took to load the file */
664 compute_elapsed(&start_time);
666 /* Set the file encapsulation type now; we don't know what it is until
667 we've looked at all the packets, as we don't know until then whether
668 there's more than one type (and thus whether it's
669 WTAP_ENCAP_PER_PACKET). */
670 cf->lnk_t = wtap_file_encap(cf->wth);
672 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
675 new_packet_list_thaw();
677 cf_callback_invoke(cf_cb_file_reload_finished, cf);
679 cf_callback_invoke(cf_cb_file_read_finished, cf);
681 /* If we have any displayed packets to select, select the first of those
682 packets by making the first row the selected row. */
683 if (cf->first_displayed != 0){
684 new_packet_list_select_first_row();
688 simple_message_box(ESD_TYPE_WARN, NULL,
689 "The remaining packets in the file were discarded.\n"
691 "As a lot of packets from the original file will be missing,\n"
692 "remember to be careful when saving the current content to a file.\n",
693 "File loading was cancelled!");
694 return CF_READ_ERROR;
698 /* Put up a message box noting that the read failed somewhere along
699 the line. Don't throw out the stuff we managed to read, though,
703 case WTAP_ERR_UNSUPPORTED:
704 simple_error_message_box(
705 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
710 case WTAP_ERR_UNSUPPORTED_ENCAP:
711 simple_error_message_box(
712 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
717 case WTAP_ERR_CANT_READ:
718 simple_error_message_box(
719 "An attempt to read from the capture file failed for"
720 " some unknown reason.");
723 case WTAP_ERR_SHORT_READ:
724 simple_error_message_box(
725 "The capture file appears to have been cut short"
726 " in the middle of a packet.");
729 case WTAP_ERR_BAD_FILE:
730 simple_error_message_box(
731 "The capture file appears to be damaged or corrupt.\n(%s)",
736 case WTAP_ERR_DECOMPRESS:
737 simple_error_message_box(
738 "The compressed capture file appears to be damaged or corrupt.\n"
744 simple_error_message_box(
745 "An error occurred while reading the"
746 " capture file: %s.", wtap_strerror(err));
749 return CF_READ_ERROR;
756 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
758 cf_status_t cf_status;
760 cf_status = cf_open(cf, fname, is_tempfile, err);
765 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
767 gint64 data_offset = 0;
769 volatile int newly_displayed_packets = 0;
771 gboolean filtering_tap_listeners;
775 /* Compile the current display filter.
776 * We assume this will not fail since cf->dfilter is only set in
777 * cf_filter IFF the filter was valid.
779 compiled = dfilter_compile(cf->dfilter, &dfcode);
780 g_assert(!cf->dfilter || (compiled && dfcode));
782 /* Do we have any tap listeners with filters? */
783 filtering_tap_listeners = have_filtering_tap_listeners();
785 /* Get the union of the flags for all tap listeners. */
786 tap_flags = union_of_tap_listener_flags();
790 new_packet_list_check_end();
791 /* Don't freeze/thaw the list when doing live capture */
792 /*new_packet_list_freeze();*/
794 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
796 while (to_read != 0) {
797 wtap_cleareof(cf->wth);
798 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
801 if (cf->state == FILE_READ_ABORTED) {
802 /* Well, the user decided to exit Wireshark. Break out of the
803 loop, and let the code below (which is called even if there
804 aren't any packets left to read) exit. */
808 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
809 data_offset) != -1) {
810 newly_displayed_packets++;
813 CATCH(OutOfMemoryError) {
814 simple_message_box(ESD_TYPE_ERROR, NULL,
815 "Some infos / workarounds can be found at:\n"
816 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
817 "Sorry, but Wireshark has run out of memory and has to terminate now!");
819 /* Could we close the current capture and free up memory from that? */
820 return CF_READ_ABORTED;
822 /* we have to terminate, as we cannot recover from the memory error */
830 /* Update the file encapsulation; it might have changed based on the
831 packets we've read. */
832 cf->lnk_t = wtap_file_encap(cf->wth);
834 /* Cleanup and release all dfilter resources */
836 dfilter_free(dfcode);
839 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
840 cf->count, cf->state, *err);*/
842 /* Don't freeze/thaw the list when doing live capture */
843 /*new_packet_list_thaw();*/
844 /* With the new packet list the first packet
845 * isn't automatically selected.
847 if(!cf->current_frame)
848 new_packet_list_select_first_row();
850 /* moving to the end of the packet list - if the user requested so and
851 we have some new packets. */
852 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
853 new_packet_list_moveto_end();
855 if (cf->state == FILE_READ_ABORTED) {
856 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
857 so that our caller can kill off the capture child process;
858 this will cause an EOF on the pipe from the child, so
859 "cf_finish_tail()" will be called, and it will clean up
861 return CF_READ_ABORTED;
862 } else if (*err != 0) {
863 /* We got an error reading the capture file.
864 XXX - pop up a dialog box instead? */
865 g_warning("Error \"%s\" while reading: \"%s\"\n",
866 wtap_strerror(*err), cf->filename);
868 return CF_READ_ERROR;
874 cf_fake_continue_tail(capture_file *cf) {
875 cf->state = FILE_READ_DONE;
879 cf_finish_tail(capture_file *cf, int *err)
884 gboolean filtering_tap_listeners;
888 /* Compile the current display filter.
889 * We assume this will not fail since cf->dfilter is only set in
890 * cf_filter IFF the filter was valid.
892 compiled = dfilter_compile(cf->dfilter, &dfcode);
893 g_assert(!cf->dfilter || (compiled && dfcode));
895 /* Do we have any tap listeners with filters? */
896 filtering_tap_listeners = have_filtering_tap_listeners();
898 /* Get the union of the flags for all tap listeners. */
899 tap_flags = union_of_tap_listener_flags();
901 if(cf->wth == NULL) {
903 return CF_READ_ERROR;
906 new_packet_list_check_end();
907 /* Don't freeze/thaw the list when doing live capture */
908 /*new_packet_list_freeze();*/
910 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
911 if (cf->state == FILE_READ_ABORTED) {
912 /* Well, the user decided to abort the read. Break out of the
913 loop, and let the code below (which is called even if there
914 aren't any packets left to read) exit. */
917 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
920 /* Cleanup and release all dfilter resources */
922 dfilter_free(dfcode);
925 /* Don't freeze/thaw the list when doing live capture */
926 /*new_packet_list_thaw();*/
928 if (cf->state == FILE_READ_ABORTED) {
929 /* Well, the user decided to abort the read. We're only called
930 when the child capture process closes the pipe to us (meaning
931 it's probably exited), so we can just close the capture
932 file; we return CF_READ_ABORTED so our caller can do whatever
933 is appropriate when that happens. */
935 return CF_READ_ABORTED;
938 if (auto_scroll_live && cf->count != 0)
939 new_packet_list_moveto_end();
941 /* We're done reading sequentially through the file. */
942 cf->state = FILE_READ_DONE;
944 /* We're done reading sequentially through the file; close the
945 sequential I/O side, to free up memory it requires. */
946 wtap_sequential_close(cf->wth);
948 /* Allow the protocol dissectors to free up memory that they
949 * don't need after the sequential run-through of the packets. */
950 postseq_cleanup_all_protocols();
952 /* Update the file encapsulation; it might have changed based on the
953 packets we've read. */
954 cf->lnk_t = wtap_file_encap(cf->wth);
956 /* Update the details in the file-set dialog, as the capture file
957 * has likely grown since we first stat-ed it */
958 fileset_update_file(cf->filename);
961 /* We got an error reading the capture file.
962 XXX - pop up a dialog box? */
963 return CF_READ_ERROR;
968 #endif /* HAVE_LIBPCAP */
971 cf_get_display_name(capture_file *cf)
975 /* Return a name to use in displays */
976 if (!cf->is_tempfile) {
977 /* Get the last component of the file name, and use that. */
979 displayname = g_filename_display_basename(cf->filename);
981 displayname=g_strdup("(No file)");
984 /* The file we read is a temporary file from a live capture or
985 a merge operation; we don't mention its name, but, if it's
986 from a capture, give the source of the capture. */
988 displayname = g_strdup(cf->source);
990 displayname = g_strdup("(Untitled)");
996 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1002 cf->source = g_strdup(source);
1004 cf->source = g_strdup("");
1008 const gchar *cf_get_tempfile_source(capture_file *cf) {
1016 /* XXX - use a macro instead? */
1018 cf_get_packet_count(capture_file *cf)
1023 /* XXX - use a macro instead? */
1025 cf_set_packet_count(capture_file *cf, int packet_count)
1027 cf->count = packet_count;
1030 /* XXX - use a macro instead? */
1032 cf_is_tempfile(capture_file *cf)
1034 return cf->is_tempfile;
1037 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1039 cf->is_tempfile = is_tempfile;
1043 /* XXX - use a macro instead? */
1044 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1046 cf->drops_known = drops_known;
1049 /* XXX - use a macro instead? */
1050 void cf_set_drops(capture_file *cf, guint32 drops)
1055 /* XXX - use a macro instead? */
1056 gboolean cf_get_drops_known(capture_file *cf)
1058 return cf->drops_known;
1061 /* XXX - use a macro instead? */
1062 guint32 cf_get_drops(capture_file *cf)
1067 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1069 cf->rfcode = rfcode;
1073 find_and_mark_frame_depended_upon(gpointer data, gpointer user_data)
1075 frame_data *dependent_fd;
1076 guint32 dependent_frame = GPOINTER_TO_UINT(data);
1077 capture_file *cf = (capture_file *)user_data;
1079 dependent_fd = frame_data_sequence_find(cf->frames, dependent_frame);
1080 dependent_fd->flags.dependent_of_displayed = 1;
1084 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1085 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1087 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1089 gboolean add_to_packet_list)
1091 gboolean create_proto_tree = FALSE;
1096 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1098 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1099 &first_ts, &prev_dis_ts, &prev_cap_ts);
1102 + we have a display filter and are re-applying it;
1103 + we have tap listeners with filters;
1104 + we have tap listeners that require a protocol tree;
1106 allocate a protocol tree root node, so that we'll construct
1107 a protocol tree against which a filter expression can be
1109 if ((dfcode != NULL && refilter) ||
1110 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1111 create_proto_tree = TRUE;
1113 /* Dissect the frame. */
1114 epan_dissect_init(&edt, create_proto_tree, FALSE);
1116 if (dfcode != NULL && refilter) {
1117 epan_dissect_prime_dfilter(&edt, dfcode);
1120 tap_queue_init(&edt);
1121 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1122 tap_push_tapped_queue(&edt);
1124 /* If we have a display filter, apply it if we're refiltering, otherwise
1125 leave the "passed_dfilter" flag alone.
1127 If we don't have a display filter, set "passed_dfilter" to 1. */
1128 if (dfcode != NULL) {
1130 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1132 if (fdata->flags.passed_dfilter) {
1133 /* This frame passed the display filter but it may depend on other
1134 * (potentially not displayed) frames. Find those frames and mark them
1137 g_slist_foreach(edt.pi.dependent_frames, find_and_mark_frame_depended_upon, cf);
1141 fdata->flags.passed_dfilter = 1;
1143 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1144 cf->displayed_count++;
1146 if (add_to_packet_list) {
1147 /* We fill the needed columns from new_packet_list */
1148 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1151 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1153 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1155 /* If we haven't yet seen the first frame, this is it.
1157 XXX - we must do this before we add the row to the display,
1158 as, if the display's GtkCList's selection mode is
1159 GTK_SELECTION_BROWSE, when the first entry is added to it,
1160 "cf_select_packet()" will be called, and it will fetch the row
1161 data for the 0th row, and will get a null pointer rather than
1162 "fdata", as "gtk_clist_append()" won't yet have returned and
1163 thus "gtk_clist_set_row_data()" won't yet have been called.
1165 We thus need to leave behind bread crumbs so that
1166 "cf_select_packet()" can find this frame. See the comment
1167 in "cf_select_packet()". */
1168 if (cf->first_displayed == 0)
1169 cf->first_displayed = fdata->num;
1171 /* This is the last frame we've seen so far. */
1172 cf->last_displayed = fdata->num;
1175 epan_dissect_cleanup(&edt);
1179 /* read in a new packet */
1180 /* returns the row of the new packet in the packet list or -1 if not displayed */
1182 read_packet(capture_file *cf, dfilter_t *dfcode,
1183 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1185 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1186 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1187 const guchar *buf = wtap_buf_ptr(cf->wth);
1194 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
1195 it's not already there.
1196 XXX - yes, this is O(N), so if every packet had a different
1197 link-layer encapsulation type, it'd be O(N^2) to read the file, but
1198 there are probably going to be a small number of encapsulation types
1200 cf_add_encapsulation_type(cf, phdr->pkt_encap);
1202 /* The frame number of this packet is one more than the count of
1203 frames in the file so far. */
1204 framenum = cf->count + 1;
1206 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1211 epan_dissect_init(&edt, TRUE, FALSE);
1212 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1213 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1214 passed = dfilter_apply_edt(cf->rfcode, &edt);
1215 epan_dissect_cleanup(&edt);
1219 /* This does a shallow copy of fdlocal, which is good enough. */
1220 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1223 if (fdlocal.opt_comment != NULL)
1224 cf->packet_comment_count++;
1225 cf->f_datalen = offset + fdlocal.cap_len;
1227 if (!cf->redissecting) {
1228 row = add_packet_to_packet_list(fdata, cf, dfcode,
1229 filtering_tap_listeners, tap_flags,
1230 pseudo_header, buf, TRUE, TRUE);
1238 cf_merge_files(char **out_filenamep, int in_file_count,
1239 char *const *in_filenames, int file_type, gboolean do_append)
1241 merge_in_file_t *in_files, *in_file;
1246 int open_err, read_err, write_err, close_err;
1250 gboolean got_read_error = FALSE, got_write_error = FALSE;
1252 progdlg_t *progbar = NULL;
1254 gint64 f_len, file_pos;
1256 GTimeVal start_time;
1257 gchar status_str[100];
1258 gint64 progbar_nextstep;
1259 gint64 progbar_quantum;
1260 gchar *display_basename;
1262 /* open the input files */
1263 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1264 &open_err, &err_info, &err_fileno)) {
1266 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1271 if (*out_filenamep != NULL) {
1272 out_filename = *out_filenamep;
1273 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1277 out_fd = create_tempfile(&tmpname, "wireshark");
1280 out_filename = g_strdup(tmpname);
1281 *out_filenamep = out_filename;
1285 merge_close_in_files(in_file_count, in_files);
1287 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1291 pdh = wtap_dump_fdopen(out_fd, file_type,
1292 merge_select_frame_type(in_file_count, in_files),
1293 merge_max_snapshot_length(in_file_count, in_files),
1294 FALSE /* compressed */, &open_err);
1297 merge_close_in_files(in_file_count, in_files);
1299 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1304 /* Get the sum of the sizes of all the files. */
1306 for (i = 0; i < in_file_count; i++)
1307 f_len += in_files[i].size;
1309 /* Update the progress bar when it gets to this value. */
1310 progbar_nextstep = 0;
1311 /* When we reach the value that triggers a progress bar update,
1312 bump that value by this amount. */
1313 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1314 /* Progress so far. */
1318 g_get_current_time(&start_time);
1320 /* do the merge (or append) */
1323 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1326 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1328 if (in_file == NULL) {
1333 if (read_err != 0) {
1334 /* I/O error reading from in_file */
1335 got_read_error = TRUE;
1339 /* Get the sum of the data offsets in all of the files. */
1341 for (i = 0; i < in_file_count; i++)
1342 data_offset += in_files[i].data_offset;
1344 /* Create the progress bar if necessary.
1345 We check on every iteration of the loop, so that it takes no
1346 longer than the standard time to create it (otherwise, for a
1347 large file, we might take considerably longer than that standard
1348 time in order to get to the next progress bar step). */
1349 if (progbar == NULL) {
1350 progbar = delayed_create_progress_dlg(NULL, "Merging", "files",
1351 FALSE, &stop_flag, &start_time, progbar_val);
1354 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1355 when we update it, we have to run the GTK+ main loop to get it
1356 to repaint what's pending, and doing so may involve an "ioctl()"
1357 to see if there's any pending input from an X server, and doing
1358 that for every packet can be costly, especially on a big file. */
1359 if (data_offset >= progbar_nextstep) {
1360 /* Get the sum of the seek positions in all of the files. */
1362 for (i = 0; i < in_file_count; i++)
1363 file_pos += wtap_read_so_far(in_files[i].wth);
1364 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1365 if (progbar_val > 1.0f) {
1366 /* Some file probably grew while we were reading it.
1367 That "shouldn't happen", so we'll just clip the progress
1371 if (progbar != NULL) {
1372 g_snprintf(status_str, sizeof(status_str),
1373 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1374 file_pos / 1024, f_len / 1024);
1375 update_progress_dlg(progbar, progbar_val, status_str);
1377 progbar_nextstep += progbar_quantum;
1381 /* Well, the user decided to abort the merge. */
1385 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1386 wtap_buf_ptr(in_file->wth), &write_err)) {
1387 got_write_error = TRUE;
1392 /* We're done merging the files; destroy the progress bar if it was created. */
1393 if (progbar != NULL)
1394 destroy_progress_dlg(progbar);
1396 merge_close_in_files(in_file_count, in_files);
1397 if (!got_read_error && !got_write_error) {
1398 if (!wtap_dump_close(pdh, &write_err))
1399 got_write_error = TRUE;
1401 wtap_dump_close(pdh, &close_err);
1403 if (got_read_error) {
1405 * Find the file on which we got the error, and report the error.
1407 for (i = 0; i < in_file_count; i++) {
1408 if (in_files[i].state == GOT_ERROR) {
1409 /* Put up a message box noting that a read failed somewhere along
1411 display_basename = g_filename_display_basename(in_files[i].filename);
1414 case WTAP_ERR_UNSUPPORTED_ENCAP:
1415 simple_error_message_box(
1416 "The capture file %s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1417 display_basename, err_info);
1421 case WTAP_ERR_CANT_READ:
1422 simple_error_message_box(
1423 "An attempt to read from the capture file %s failed for"
1424 " some unknown reason.", display_basename);
1427 case WTAP_ERR_SHORT_READ:
1428 simple_error_message_box(
1429 "The capture file %s appears to have been cut short"
1430 " in the middle of a packet.", display_basename);
1433 case WTAP_ERR_BAD_FILE:
1434 simple_error_message_box(
1435 "The capture file %s appears to be damaged or corrupt.\n(%s)",
1436 display_basename, err_info);
1440 case WTAP_ERR_DECOMPRESS:
1441 simple_error_message_box(
1442 "The compressed capture file %s appears to be damaged or corrupt.\n"
1443 "(%s)", display_basename, err_info);
1448 simple_error_message_box(
1449 "An error occurred while reading the"
1450 " capture file %s: %s.",
1451 display_basename, wtap_strerror(read_err));
1454 g_free(display_basename);
1459 if (got_write_error) {
1460 /* Put up an alert box for the write error. */
1461 if (write_err < 0) {
1462 /* Wiretap error. */
1463 switch (write_err) {
1465 case WTAP_ERR_UNSUPPORTED_ENCAP:
1467 * This is a problem with the particular frame we're writing;
1468 * note that, and give the frame number.
1470 display_basename = g_filename_display_basename(in_file->filename);
1471 simple_error_message_box(
1472 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1473 in_file->packet_num, display_basename,
1474 wtap_file_type_string(file_type));
1475 g_free(display_basename);
1479 display_basename = g_filename_display_basename(out_filename);
1480 simple_error_message_box(
1481 "An error occurred while writing to the file \"%s\": %s.",
1482 out_filename, wtap_strerror(write_err));
1483 g_free(display_basename);
1488 write_failure_alert_box(out_filename, write_err);
1492 if (got_read_error || got_write_error || stop_flag) {
1493 /* Callers aren't expected to treat an error or an explicit abort
1494 differently - we put up error dialogs ourselves, so they don't
1502 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1504 const char *filter_new = dftext ? dftext : "";
1505 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1507 GTimeVal start_time;
1509 /* if new filter equals old one, do nothing unless told to do so */
1510 if (!force && strcmp(filter_new, filter_old) == 0) {
1516 if (dftext == NULL) {
1517 /* The new filter is an empty filter (i.e., display all packets).
1518 * so leave dfcode==NULL
1522 * We have a filter; make a copy of it (as we'll be saving it),
1523 * and try to compile it.
1525 dftext = g_strdup(dftext);
1526 if (!dfilter_compile(dftext, &dfcode)) {
1527 /* The attempt failed; report an error. */
1528 simple_message_box(ESD_TYPE_ERROR, NULL,
1529 "See the help for a description of the display filter syntax.",
1530 "\"%s\" isn't a valid display filter: %s",
1531 dftext, dfilter_error_msg);
1537 if (dfcode == NULL) {
1538 /* Yes - free the filter text, and set it to null. */
1544 /* We have a valid filter. Replace the current filter. */
1545 g_free(cf->dfilter);
1546 cf->dfilter = dftext;
1547 g_get_current_time(&start_time);
1550 /* Now rescan the packet list, applying the new filter, but not
1551 throwing away information constructed on a previous pass. */
1552 if (dftext == NULL) {
1553 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1555 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1558 /* Cleanup and release all dfilter resources */
1559 dfilter_free(dfcode);
1565 cf_reftime_packets(capture_file *cf)
1568 ref_time_packets(cf);
1572 cf_redissect_packets(capture_file *cf)
1574 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1578 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1579 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1583 gchar *display_basename;
1585 #ifdef WANT_PACKET_EDITOR
1586 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1587 if (G_UNLIKELY(fdata->file_off == -1)) {
1588 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1591 simple_error_message_box("fdata->file_off == -1, but can't find modified frame!");
1595 *pseudo_header = frame->ph;
1596 memcpy(pd, frame->pd, fdata->cap_len);
1601 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1602 fdata->cap_len, &err, &err_info)) {
1603 display_basename = g_filename_display_basename(cf->filename);
1606 case WTAP_ERR_UNSUPPORTED_ENCAP:
1607 simple_error_message_box("The file \"%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1608 display_basename, err_info);
1612 case WTAP_ERR_BAD_FILE:
1613 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1614 display_basename, wtap_strerror(err), err_info);
1619 simple_error_message_box(
1620 "An error occurred while reading from the file \"%s\": %s.",
1621 display_basename, wtap_strerror(err));
1624 g_free(display_basename);
1631 cf_read_frame(capture_file *cf, frame_data *fdata)
1633 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1636 /* Rescan the list of packets, reconstructing the CList.
1638 "action" describes why we're doing this; it's used in the progress
1641 "action_item" describes what we're doing; it's used in the progress
1644 "refilter" is TRUE if we need to re-evaluate the filter expression.
1646 "redissect" is TRUE if we need to make the dissectors reconstruct
1647 any state information they have (because a preference that affects
1648 some dissector has changed, meaning some dissector might construct
1649 its state differently from the way it was constructed the last time). */
1651 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1652 gboolean refilter, gboolean redissect)
1654 /* Rescan packets new packet list */
1657 progdlg_t *progbar = NULL;
1660 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1661 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1662 gboolean selected_frame_seen;
1664 GTimeVal start_time;
1665 gchar status_str[100];
1666 int progbar_nextstep;
1667 int progbar_quantum;
1669 gboolean filtering_tap_listeners;
1671 gboolean add_to_packet_list = FALSE;
1674 /* Compile the current display filter.
1675 * We assume this will not fail since cf->dfilter is only set in
1676 * cf_filter IFF the filter was valid.
1678 compiled = dfilter_compile(cf->dfilter, &dfcode);
1679 g_assert(!cf->dfilter || (compiled && dfcode));
1681 /* Do we have any tap listeners with filters? */
1682 filtering_tap_listeners = have_filtering_tap_listeners();
1684 /* Get the union of the flags for all tap listeners. */
1685 tap_flags = union_of_tap_listener_flags();
1687 reset_tap_listeners();
1688 /* Which frame, if any, is the currently selected frame?
1689 XXX - should the selected frame or the focus frame be the "current"
1690 frame, that frame being the one from which "Find Frame" searches
1692 selected_frame = cf->current_frame;
1694 /* Mark frame num as not found */
1695 selected_frame_num = -1;
1697 /* Freeze the packet list while we redo it, so we don't get any
1698 screen updates while it happens. */
1699 new_packet_list_freeze();
1702 /* We need to re-initialize all the state information that protocols
1703 keep, because some preference that controls a dissector has changed,
1704 which might cause the state information to be constructed differently
1705 by that dissector. */
1707 /* We might receive new packets while redissecting, and we don't
1708 want to dissect those before their time. */
1709 cf->redissecting = TRUE;
1711 /* Cleanup all data structures used for dissection. */
1712 cleanup_dissection();
1713 /* Initialize all data structures used for dissection. */
1716 /* We need to redissect the packets so we have to discard our old
1717 * packet list store. */
1718 new_packet_list_clear();
1719 add_to_packet_list = TRUE;
1722 /* We don't yet know which will be the first and last frames displayed. */
1723 cf->first_displayed = 0;
1724 cf->last_displayed = 0;
1726 /* We currently don't display any packets */
1727 cf->displayed_count = 0;
1729 /* Iterate through the list of frames. Call a routine for each frame
1730 to check whether it should be displayed and, if so, add it to
1731 the display list. */
1732 nstime_set_unset(&first_ts);
1733 nstime_set_unset(&prev_dis_ts);
1734 nstime_set_unset(&prev_cap_ts);
1737 /* Update the progress bar when it gets to this value. */
1738 progbar_nextstep = 0;
1739 /* When we reach the value that triggers a progress bar update,
1740 bump that value by this amount. */
1741 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1742 /* Count of packets at which we've looked. */
1744 /* Progress so far. */
1748 g_get_current_time(&start_time);
1750 /* no previous row yet */
1751 prev_frame_num = -1;
1754 preceding_frame_num = -1;
1755 preceding_frame = NULL;
1756 following_frame_num = -1;
1757 following_frame = NULL;
1759 selected_frame_seen = FALSE;
1761 for (framenum = 1; framenum <= cf->count; framenum++) {
1762 fdata = frame_data_sequence_find(cf->frames, framenum);
1764 /* Create the progress bar if necessary.
1765 We check on every iteration of the loop, so that it takes no
1766 longer than the standard time to create it (otherwise, for a
1767 large file, we might take considerably longer than that standard
1768 time in order to get to the next progress bar step). */
1769 if (progbar == NULL)
1770 progbar = delayed_create_progress_dlg(cf->window, action, action_item, TRUE,
1771 &stop_flag, &start_time,
1774 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1775 when we update it, we have to run the GTK+ main loop to get it
1776 to repaint what's pending, and doing so may involve an "ioctl()"
1777 to see if there's any pending input from an X server, and doing
1778 that for every packet can be costly, especially on a big file. */
1779 if (count >= progbar_nextstep) {
1780 /* let's not divide by zero. I should never be started
1781 * with count == 0, so let's assert that
1783 g_assert(cf->count > 0);
1784 progbar_val = (gfloat) count / cf->count;
1786 if (progbar != NULL) {
1787 g_snprintf(status_str, sizeof(status_str),
1788 "%4u of %u frames", count, cf->count);
1789 update_progress_dlg(progbar, progbar_val, status_str);
1792 progbar_nextstep += progbar_quantum;
1796 /* Well, the user decided to abort the filtering. Just stop.
1798 XXX - go back to the previous filter? Users probably just
1799 want not to wait for a filtering operation to finish;
1800 unless we cancel by having no filter, reverting to the
1801 previous filter will probably be even more expensive than
1802 continuing the filtering, as it involves going back to the
1803 beginning and filtering, and even with no filter we currently
1804 have to re-generate the entire clist, which is also expensive.
1806 I'm not sure what Network Monitor does, but it doesn't appear
1807 to give you an unfiltered display if you cancel. */
1814 /* Since all state for the frame was destroyed, mark the frame
1815 * as not visited, free the GSList referring to the state
1816 * data (the per-frame data itself was freed by
1817 * "init_dissection()"), and null out the GSList pointer. */
1818 fdata->flags.visited = 0;
1819 frame_data_cleanup(fdata);
1822 if (redissect || refilter) {
1823 /* If we're redissecting or refiltering then any frame dependencies
1824 * from the previous dissection/filtering are no longer valid.
1826 fdata->flags.dependent_of_displayed = 0;
1829 if (!cf_read_frame(cf, fdata))
1830 break; /* error reading the frame */
1832 /* If the previous frame is displayed, and we haven't yet seen the
1833 selected frame, remember that frame - it's the closest one we've
1834 yet seen before the selected frame. */
1835 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1836 preceding_frame_num = prev_frame_num;
1837 preceding_frame = prev_frame;
1839 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1840 tap_flags, &cf->pseudo_header, cf->pd,
1842 add_to_packet_list);
1844 /* If this frame is displayed, and this is the first frame we've
1845 seen displayed after the selected frame, remember this frame -
1846 it's the closest one we've yet seen at or after the selected
1848 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1849 following_frame_num = fdata->num;
1850 following_frame = fdata;
1852 if (fdata == selected_frame) {
1853 selected_frame_seen = TRUE;
1854 if (fdata->flags.passed_dfilter)
1855 selected_frame_num = fdata->num;
1858 /* Remember this frame - it'll be the previous frame
1859 on the next pass through the loop. */
1860 prev_frame_num = fdata->num;
1864 /* We are done redissecting the packet list. */
1865 cf->redissecting = FALSE;
1868 /* Clear out what remains of the visited flags and per-frame data
1871 XXX - that may cause various forms of bogosity when dissecting
1872 these frames, as they won't have been seen by this sequential
1873 pass, but the only alternative I see is to keep scanning them
1874 even though the user requested that the scan stop, and that
1875 would leave the user stuck with an Wireshark grinding on
1876 until it finishes. Should we just stick them with that? */
1877 for (; framenum <= cf->count; framenum++) {
1878 fdata = frame_data_sequence_find(cf->frames, framenum);
1879 fdata->flags.visited = 0;
1880 frame_data_cleanup(fdata);
1884 /* We're done filtering the packets; destroy the progress bar if it
1886 if (progbar != NULL)
1887 destroy_progress_dlg(progbar);
1889 /* Unfreeze the packet list. */
1890 if (!add_to_packet_list)
1891 new_packet_list_recreate_visible_rows();
1893 /* Compute the time it took to filter the file */
1894 compute_elapsed(&start_time);
1896 new_packet_list_thaw();
1898 if (selected_frame_num == -1) {
1899 /* The selected frame didn't pass the filter. */
1900 if (selected_frame == NULL) {
1901 /* That's because there *was* no selected frame. Make the first
1902 displayed frame the current frame. */
1903 selected_frame_num = 0;
1905 /* Find the nearest displayed frame to the selected frame (whether
1906 it's before or after that frame) and make that the current frame.
1907 If the next and previous displayed frames are equidistant from the
1908 selected frame, choose the next one. */
1909 g_assert(following_frame == NULL ||
1910 following_frame->num >= selected_frame->num);
1911 g_assert(preceding_frame == NULL ||
1912 preceding_frame->num <= selected_frame->num);
1913 if (following_frame == NULL) {
1914 /* No frame after the selected frame passed the filter, so we
1915 have to select the last displayed frame before the selected
1917 selected_frame_num = preceding_frame_num;
1918 selected_frame = preceding_frame;
1919 } else if (preceding_frame == NULL) {
1920 /* No frame before the selected frame passed the filter, so we
1921 have to select the first displayed frame after the selected
1923 selected_frame_num = following_frame_num;
1924 selected_frame = following_frame;
1926 /* Frames before and after the selected frame passed the filter, so
1927 we'll select the previous frame */
1928 selected_frame_num = preceding_frame_num;
1929 selected_frame = preceding_frame;
1934 if (selected_frame_num == -1) {
1935 /* There are no frames displayed at all. */
1936 cf_unselect_packet(cf);
1938 /* Either the frame that was selected passed the filter, or we've
1939 found the nearest displayed frame to that frame. Select it, make
1940 it the focus row, and make it visible. */
1941 /* Set to invalid to force update of packet list and packet details */
1942 cf->current_row = -1;
1943 if (selected_frame_num == 0) {
1944 new_packet_list_select_first_row();
1946 if (!new_packet_list_select_row_from_data(selected_frame)) {
1947 /* We didn't find a row corresponding to this frame.
1948 This means that the frame isn't being displayed currently,
1949 so we can't select it. */
1950 simple_message_box(ESD_TYPE_INFO, NULL,
1951 "The capture file is probably not fully dissected.",
1952 "End of capture exceeded!");
1957 /* Cleanup and release all dfilter resources */
1958 dfilter_free(dfcode);
1963 * Scan trough all frame data and recalculate the ref time
1964 * without rereading the file.
1965 * XXX - do we need a progres bar or is this fast enough?
1968 ref_time_packets(capture_file *cf)
1973 nstime_set_unset(&first_ts);
1974 nstime_set_unset(&prev_dis_ts);
1977 for (framenum = 1; framenum <= cf->count; framenum++) {
1978 fdata = frame_data_sequence_find(cf->frames, framenum);
1980 /* just add some value here until we know if it is being displayed or not */
1981 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1987 /* If we don't have the time stamp of the first packet in the
1988 capture, it's because this is the first packet. Save the time
1989 stamp of this packet as the time stamp of the first packet. */
1990 if (nstime_is_unset(&first_ts)) {
1991 first_ts = fdata->abs_ts;
1993 /* if this frames is marked as a reference time frame, reset
1994 firstsec and firstusec to this frame */
1995 if(fdata->flags.ref_time){
1996 first_ts = fdata->abs_ts;
1999 /* If we don't have the time stamp of the previous displayed packet,
2000 it's because this is the first displayed packet. Save the time
2001 stamp of this packet as the time stamp of the previous displayed
2003 if (nstime_is_unset(&prev_dis_ts)) {
2004 prev_dis_ts = fdata->abs_ts;
2007 /* Get the time elapsed between the first packet and this packet. */
2008 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2010 /* If it's greater than the current elapsed time, set the elapsed time
2011 to it (we check for "greater than" so as not to be confused by
2012 time moving backwards). */
2013 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2014 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2015 cf->elapsed_time = fdata->rel_ts;
2018 /* If this frame is displayed, get the time elapsed between the
2019 previous displayed packet and this packet. */
2020 if( fdata->flags.passed_dfilter ) {
2021 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2022 prev_dis_ts = fdata->abs_ts;
2028 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2029 /* This frame either passed the display filter list or is marked as
2030 a time reference frame. All time reference frames are displayed
2031 even if they dont pass the display filter */
2032 if(fdata->flags.ref_time){
2033 /* if this was a TIME REF frame we should reset the cum_bytes field */
2034 cum_bytes = fdata->pkt_len;
2035 fdata->cum_bytes = cum_bytes;
2037 /* increase cum_bytes with this packets length */
2038 cum_bytes += fdata->pkt_len;
2051 process_specified_packets(capture_file *cf, packet_range_t *range,
2052 const char *string1, const char *string2, gboolean terminate_is_stop,
2053 gboolean (*callback)(capture_file *, frame_data *,
2054 union wtap_pseudo_header *, const guint8 *, void *),
2055 void *callback_args)
2059 union wtap_pseudo_header pseudo_header;
2060 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2061 psp_return_t ret = PSP_FINISHED;
2063 progdlg_t *progbar = NULL;
2066 gboolean progbar_stop_flag;
2067 GTimeVal progbar_start_time;
2068 gchar progbar_status_str[100];
2069 int progbar_nextstep;
2070 int progbar_quantum;
2071 range_process_e process_this;
2073 /* Update the progress bar when it gets to this value. */
2074 progbar_nextstep = 0;
2075 /* When we reach the value that triggers a progress bar update,
2076 bump that value by this amount. */
2077 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2078 /* Count of packets at which we've looked. */
2080 /* Progress so far. */
2083 progbar_stop_flag = FALSE;
2084 g_get_current_time(&progbar_start_time);
2087 packet_range_process_init(range);
2089 /* Iterate through all the packets, printing the packets that
2090 were selected by the current display filter. */
2091 for (framenum = 1; framenum <= cf->count; framenum++) {
2092 fdata = frame_data_sequence_find(cf->frames, framenum);
2094 /* Create the progress bar if necessary.
2095 We check on every iteration of the loop, so that it takes no
2096 longer than the standard time to create it (otherwise, for a
2097 large file, we might take considerably longer than that standard
2098 time in order to get to the next progress bar step). */
2099 if (progbar == NULL)
2100 progbar = delayed_create_progress_dlg(cf->window, string1, string2,
2103 &progbar_start_time,
2106 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2107 when we update it, we have to run the GTK+ main loop to get it
2108 to repaint what's pending, and doing so may involve an "ioctl()"
2109 to see if there's any pending input from an X server, and doing
2110 that for every packet can be costly, especially on a big file. */
2111 if (progbar_count >= progbar_nextstep) {
2112 /* let's not divide by zero. I should never be started
2113 * with count == 0, so let's assert that
2115 g_assert(cf->count > 0);
2116 progbar_val = (gfloat) progbar_count / cf->count;
2118 if (progbar != NULL) {
2119 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2120 "%4u of %u packets", progbar_count, cf->count);
2121 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2124 progbar_nextstep += progbar_quantum;
2127 if (progbar_stop_flag) {
2128 /* Well, the user decided to abort the operation. Just stop,
2129 and arrange to return PSP_STOPPED to our caller, so they know
2130 it was stopped explicitly. */
2137 if (range != NULL) {
2138 /* do we have to process this packet? */
2139 process_this = packet_range_process_packet(range, fdata);
2140 if (process_this == range_process_next) {
2141 /* this packet uninteresting, continue with next one */
2143 } else if (process_this == range_processing_finished) {
2144 /* all interesting packets processed, stop the loop */
2149 /* Get the packet */
2150 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2151 /* Attempt to get the packet failed. */
2155 /* Process the packet */
2156 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2157 /* Callback failed. We assume it reported the error appropriately. */
2163 /* We're done printing the packets; destroy the progress bar if
2165 if (progbar != NULL)
2166 destroy_progress_dlg(progbar);
2172 gboolean construct_protocol_tree;
2174 } retap_callback_args_t;
2177 retap_packet(capture_file *cf _U_, frame_data *fdata,
2178 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2181 retap_callback_args_t *args = argsp;
2184 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2185 tap_queue_init(&edt);
2186 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2187 tap_push_tapped_queue(&edt);
2188 epan_dissect_cleanup(&edt);
2194 cf_retap_packets(capture_file *cf)
2196 packet_range_t range;
2197 retap_callback_args_t callback_args;
2198 gboolean filtering_tap_listeners;
2201 /* Do we have any tap listeners with filters? */
2202 filtering_tap_listeners = have_filtering_tap_listeners();
2204 tap_flags = union_of_tap_listener_flags();
2206 /* If any tap listeners have filters, or require the protocol tree,
2207 construct the protocol tree. */
2208 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2209 (tap_flags & TL_REQUIRES_PROTO_TREE);
2211 /* If any tap listeners require the columns, construct them. */
2212 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2214 /* Reset the tap listeners. */
2215 reset_tap_listeners();
2217 /* Iterate through the list of packets, dissecting all packets and
2218 re-running the taps. */
2219 packet_range_init(&range);
2220 packet_range_process_init(&range);
2221 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2222 "all packets", TRUE, retap_packet,
2225 /* Completed successfully. */
2229 /* Well, the user decided to abort the refiltering.
2230 Return CF_READ_ABORTED so our caller knows they did that. */
2231 return CF_READ_ABORTED;
2234 /* Error while retapping. */
2235 return CF_READ_ERROR;
2238 g_assert_not_reached();
2243 print_args_t *print_args;
2244 gboolean print_header_line;
2245 char *header_line_buf;
2246 int header_line_buf_len;
2247 gboolean print_formfeed;
2248 gboolean print_separator;
2252 int num_visible_cols;
2254 } print_callback_args_t;
2257 print_packet(capture_file *cf, frame_data *fdata,
2258 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2261 print_callback_args_t *args = argsp;
2268 gboolean proto_tree_needed;
2269 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2270 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2272 /* Create the protocol tree, and make it visible, if we're printing
2273 the dissection or the hex data.
2274 XXX - do we need it if we're just printing the hex data? */
2276 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2277 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2279 /* Fill in the column information if we're printing the summary
2281 if (args->print_args->print_summary) {
2282 col_custom_prime_edt(&edt, &cf->cinfo);
2283 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2284 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2286 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2288 if (args->print_formfeed) {
2289 if (!new_page(args->print_args->stream))
2292 if (args->print_separator) {
2293 if (!print_line(args->print_args->stream, 0, ""))
2299 * We generate bookmarks, if the output format supports them.
2300 * The name is "__frameN__".
2302 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2304 if (args->print_args->print_summary) {
2305 if (args->print_header_line) {
2306 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2308 args->print_header_line = FALSE; /* we might not need to print any more */
2310 cp = &args->line_buf[0];
2312 for (i = 0; i < args->num_visible_cols; i++) {
2313 /* Find the length of the string for this column. */
2314 column_len = (int) strlen(cf->cinfo.col_data[args->visible_cols[i]]);
2315 if (args->col_widths[i] > column_len)
2316 column_len = args->col_widths[i];
2318 /* Make sure there's room in the line buffer for the column; if not,
2319 double its length. */
2320 line_len += column_len + 1; /* "+1" for space */
2321 if (line_len > args->line_buf_len) {
2322 cp_off = (int) (cp - args->line_buf);
2323 args->line_buf_len = 2 * line_len;
2324 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2325 cp = args->line_buf + cp_off;
2328 /* Right-justify the packet number column. */
2329 if (cf->cinfo.col_fmt[args->visible_cols[i]] == COL_NUMBER)
2330 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2332 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2334 if (i != args->num_visible_cols - 1)
2340 * Generate a bookmark, using the summary line as the title.
2342 if (!print_bookmark(args->print_args->stream, bookmark_name,
2346 if (!print_line(args->print_args->stream, 0, args->line_buf))
2350 * Generate a bookmark, using "Frame N" as the title, as we're not
2351 * printing the summary line.
2353 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2354 if (!print_bookmark(args->print_args->stream, bookmark_name,
2357 } /* if (print_summary) */
2359 if (args->print_args->print_dissections != print_dissections_none) {
2360 if (args->print_args->print_summary) {
2361 /* Separate the summary line from the tree with a blank line. */
2362 if (!print_line(args->print_args->stream, 0, ""))
2366 /* Print the information in that tree. */
2367 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2370 /* Print a blank line if we print anything after this (aka more than one packet). */
2371 args->print_separator = TRUE;
2373 /* Print a header line if we print any more packet summaries */
2374 args->print_header_line = TRUE;
2377 if (args->print_args->print_hex) {
2378 /* Print the full packet data as hex. */
2379 if (!print_hex_data(args->print_args->stream, &edt))
2382 /* Print a blank line if we print anything after this (aka more than one packet). */
2383 args->print_separator = TRUE;
2385 /* Print a header line if we print any more packet summaries */
2386 args->print_header_line = TRUE;
2387 } /* if (args->print_args->print_dissections != print_dissections_none) */
2389 epan_dissect_cleanup(&edt);
2391 /* do we want to have a formfeed between each packet from now on? */
2392 if(args->print_args->print_formfeed) {
2393 args->print_formfeed = TRUE;
2399 epan_dissect_cleanup(&edt);
2404 cf_print_packets(capture_file *cf, print_args_t *print_args)
2406 print_callback_args_t callback_args;
2409 int i, cp_off, column_len, line_len;
2410 int num_visible_col = 0, last_visible_col = 0, visible_col_count;
2415 callback_args.print_args = print_args;
2416 callback_args.print_header_line = TRUE;
2417 callback_args.header_line_buf = NULL;
2418 callback_args.header_line_buf_len = 256;
2419 callback_args.print_formfeed = FALSE;
2420 callback_args.print_separator = FALSE;
2421 callback_args.line_buf = NULL;
2422 callback_args.line_buf_len = 256;
2423 callback_args.col_widths = NULL;
2424 callback_args.num_visible_cols = 0;
2425 callback_args.visible_cols = NULL;
2427 if (!print_preamble(print_args->stream, cf->filename)) {
2428 destroy_print_stream(print_args->stream);
2429 return CF_PRINT_WRITE_ERROR;
2432 if (print_args->print_summary) {
2433 /* We're printing packet summaries. Allocate the header line buffer
2434 and get the column widths. */
2435 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2437 /* Find the number of visible columns and the last visible column */
2438 for (i = 0; i < prefs.num_cols; i++) {
2440 clp = g_list_nth(prefs.col_list, i);
2441 if (clp == NULL) /* Sanity check, Invalid column requested */
2444 cfmt = (fmt_data *) clp->data;
2445 if (cfmt->visible) {
2447 last_visible_col = i;
2451 /* Find the widths for each of the columns - maximum of the
2452 width of the title and the width of the data - and construct
2453 a buffer with a line containing the column titles. */
2454 callback_args.num_visible_cols = num_visible_col;
2455 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2456 callback_args.visible_cols = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2457 cp = &callback_args.header_line_buf[0];
2459 visible_col_count = 0;
2460 for (i = 0; i < cf->cinfo.num_cols; i++) {
2462 clp = g_list_nth(prefs.col_list, i);
2463 if (clp == NULL) /* Sanity check, Invalid column requested */
2466 cfmt = (fmt_data *) clp->data;
2467 if (cfmt->visible == FALSE)
2470 /* Save the order of visible columns */
2471 callback_args.visible_cols[visible_col_count] = i;
2473 /* Don't pad the last column. */
2474 if (i == last_visible_col)
2475 callback_args.col_widths[visible_col_count] = 0;
2477 callback_args.col_widths[visible_col_count] = (gint) strlen(cf->cinfo.col_title[i]);
2478 data_width = get_column_char_width(get_column_format(i));
2479 if (data_width > callback_args.col_widths[visible_col_count])
2480 callback_args.col_widths[visible_col_count] = data_width;
2483 /* Find the length of the string for this column. */
2484 column_len = (int) strlen(cf->cinfo.col_title[i]);
2485 if (callback_args.col_widths[i] > column_len)
2486 column_len = callback_args.col_widths[visible_col_count];
2488 /* Make sure there's room in the line buffer for the column; if not,
2489 double its length. */
2490 line_len += column_len + 1; /* "+1" for space */
2491 if (line_len > callback_args.header_line_buf_len) {
2492 cp_off = (int) (cp - callback_args.header_line_buf);
2493 callback_args.header_line_buf_len = 2 * line_len;
2494 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2495 callback_args.header_line_buf_len + 1);
2496 cp = callback_args.header_line_buf + cp_off;
2499 /* Right-justify the packet number column. */
2500 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2501 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2503 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2505 if (i != cf->cinfo.num_cols - 1)
2508 visible_col_count++;
2512 /* Now start out the main line buffer with the same length as the
2513 header line buffer. */
2514 callback_args.line_buf_len = callback_args.header_line_buf_len;
2515 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2516 } /* if (print_summary) */
2518 /* Iterate through the list of packets, printing the packets we were
2520 ret = process_specified_packets(cf, &print_args->range, "Printing",
2521 "selected packets", TRUE, print_packet,
2524 g_free(callback_args.header_line_buf);
2525 g_free(callback_args.line_buf);
2526 g_free(callback_args.col_widths);
2527 g_free(callback_args.visible_cols);
2532 /* Completed successfully. */
2536 /* Well, the user decided to abort the printing.
2538 XXX - note that what got generated before they did that
2539 will get printed if we're piping to a print program; we'd
2540 have to write to a file and then hand that to the print
2541 program to make it actually not print anything. */
2545 /* Error while printing.
2547 XXX - note that what got generated before they did that
2548 will get printed if we're piping to a print program; we'd
2549 have to write to a file and then hand that to the print
2550 program to make it actually not print anything. */
2551 destroy_print_stream(print_args->stream);
2552 return CF_PRINT_WRITE_ERROR;
2555 if (!print_finale(print_args->stream)) {
2556 destroy_print_stream(print_args->stream);
2557 return CF_PRINT_WRITE_ERROR;
2560 if (!destroy_print_stream(print_args->stream))
2561 return CF_PRINT_WRITE_ERROR;
2567 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2568 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2574 /* Create the protocol tree, but don't fill in the column information. */
2575 epan_dissect_init(&edt, TRUE, TRUE);
2576 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2578 /* Write out the information in that tree. */
2579 proto_tree_write_pdml(&edt, fh);
2581 epan_dissect_cleanup(&edt);
2587 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2592 fh = ws_fopen(print_args->file, "w");
2594 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2596 write_pdml_preamble(fh, cf->filename);
2599 return CF_PRINT_WRITE_ERROR;
2602 /* Iterate through the list of packets, printing the packets we were
2604 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2605 "selected packets", TRUE,
2606 write_pdml_packet, fh);
2611 /* Completed successfully. */
2615 /* Well, the user decided to abort the printing. */
2619 /* Error while printing. */
2621 return CF_PRINT_WRITE_ERROR;
2624 write_pdml_finale(fh);
2627 return CF_PRINT_WRITE_ERROR;
2630 /* XXX - check for an error */
2637 write_psml_packet(capture_file *cf, frame_data *fdata,
2638 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2643 gboolean proto_tree_needed;
2645 /* Fill in the column information, only create the protocol tree
2646 if having custom columns. */
2647 proto_tree_needed = have_custom_cols(&cf->cinfo);
2648 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2649 col_custom_prime_edt(&edt, &cf->cinfo);
2650 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2651 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2653 /* Write out the information in that tree. */
2654 proto_tree_write_psml(&edt, fh);
2656 epan_dissect_cleanup(&edt);
2662 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2667 fh = ws_fopen(print_args->file, "w");
2669 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2671 write_psml_preamble(fh);
2674 return CF_PRINT_WRITE_ERROR;
2677 /* Iterate through the list of packets, printing the packets we were
2679 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2680 "selected packets", TRUE,
2681 write_psml_packet, fh);
2686 /* Completed successfully. */
2690 /* Well, the user decided to abort the printing. */
2694 /* Error while printing. */
2696 return CF_PRINT_WRITE_ERROR;
2699 write_psml_finale(fh);
2702 return CF_PRINT_WRITE_ERROR;
2705 /* XXX - check for an error */
2712 write_csv_packet(capture_file *cf, frame_data *fdata,
2713 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2718 gboolean proto_tree_needed;
2720 /* Fill in the column information, only create the protocol tree
2721 if having custom columns. */
2722 proto_tree_needed = have_custom_cols(&cf->cinfo);
2723 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2724 col_custom_prime_edt(&edt, &cf->cinfo);
2725 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2726 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2728 /* Write out the information in that tree. */
2729 proto_tree_write_csv(&edt, fh);
2731 epan_dissect_cleanup(&edt);
2737 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2742 fh = ws_fopen(print_args->file, "w");
2744 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2746 write_csv_preamble(fh);
2749 return CF_PRINT_WRITE_ERROR;
2752 /* Iterate through the list of packets, printing the packets we were
2754 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2755 "selected packets", TRUE,
2756 write_csv_packet, fh);
2761 /* Completed successfully. */
2765 /* Well, the user decided to abort the printing. */
2769 /* Error while printing. */
2771 return CF_PRINT_WRITE_ERROR;
2774 write_csv_finale(fh);
2777 return CF_PRINT_WRITE_ERROR;
2780 /* XXX - check for an error */
2787 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2788 union wtap_pseudo_header *pseudo_header,
2789 const guint8 *pd, void *argsp)
2794 epan_dissect_init(&edt, TRUE, TRUE);
2795 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2796 proto_tree_write_carrays(fdata->num, fh, &edt);
2797 epan_dissect_cleanup(&edt);
2803 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2808 fh = ws_fopen(print_args->file, "w");
2811 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2813 write_carrays_preamble(fh);
2817 return CF_PRINT_WRITE_ERROR;
2820 /* Iterate through the list of packets, printing the packets we were
2822 ret = process_specified_packets(cf, &print_args->range,
2824 "selected packets", TRUE,
2825 write_carrays_packet, fh);
2828 /* Completed successfully. */
2831 /* Well, the user decided to abort the printing. */
2834 /* Error while printing. */
2836 return CF_PRINT_WRITE_ERROR;
2839 write_carrays_finale(fh);
2843 return CF_PRINT_WRITE_ERROR;
2851 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2852 search_direction dir)
2856 mdata.string = string;
2857 mdata.string_len = strlen(string);
2858 return find_packet(cf, match_protocol_tree, &mdata, dir);
2862 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2864 mdata->frame_matched = FALSE;
2865 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2866 mdata->string_len = strlen(mdata->string);
2868 /* Iterate through all the nodes looking for matching text */
2869 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2870 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2874 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2876 match_data *mdata = criterion;
2879 /* Load the frame's data. */
2880 if (!cf_read_frame(cf, fdata)) {
2881 /* Attempt to get the packet failed. */
2885 /* Construct the protocol tree, including the displayed text */
2886 epan_dissect_init(&edt, TRUE, TRUE);
2887 /* We don't need the column information */
2888 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2890 /* Iterate through all the nodes, seeing if they have text that matches. */
2892 mdata->frame_matched = FALSE;
2893 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2894 epan_dissect_cleanup(&edt);
2895 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2899 match_subtree_text(proto_node *node, gpointer data)
2901 match_data *mdata = (match_data *) data;
2902 const gchar *string = mdata->string;
2903 size_t string_len = mdata->string_len;
2904 capture_file *cf = mdata->cf;
2905 field_info *fi = PNODE_FINFO(node);
2906 gchar label_str[ITEM_LABEL_LENGTH];
2913 g_assert(fi && "dissection with an invisible proto tree?");
2915 if (mdata->frame_matched) {
2916 /* We already had a match; don't bother doing any more work. */
2920 /* Don't match invisible entries. */
2921 if (PROTO_ITEM_IS_HIDDEN(node))
2924 /* was a free format label produced? */
2926 label_ptr = fi->rep->representation;
2928 /* no, make a generic label */
2929 label_ptr = label_str;
2930 proto_item_fill_label(fi, label_str);
2933 /* Does that label match? */
2934 label_len = strlen(label_ptr);
2935 for (i = 0; i < label_len; i++) {
2936 c_char = label_ptr[i];
2938 c_char = toupper(c_char);
2939 if (c_char == string[c_match]) {
2941 if (c_match == string_len) {
2942 /* No need to look further; we have a match */
2943 mdata->frame_matched = TRUE;
2951 /* Recurse into the subtree, if it exists */
2952 if (node->first_child != NULL)
2953 proto_tree_children_foreach(node, match_subtree_text, mdata);
2957 cf_find_packet_summary_line(capture_file *cf, const char *string,
2958 search_direction dir)
2962 mdata.string = string;
2963 mdata.string_len = strlen(string);
2964 return find_packet(cf, match_summary_line, &mdata, dir);
2968 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2970 match_data *mdata = criterion;
2971 const gchar *string = mdata->string;
2972 size_t string_len = mdata->string_len;
2974 const char *info_column;
2975 size_t info_column_len;
2976 match_result result = MR_NOTMATCHED;
2982 /* Load the frame's data. */
2983 if (!cf_read_frame(cf, fdata)) {
2984 /* Attempt to get the packet failed. */
2988 /* Don't bother constructing the protocol tree */
2989 epan_dissect_init(&edt, FALSE, FALSE);
2990 /* Get the column information */
2991 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2993 /* Find the Info column */
2994 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2995 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2996 /* Found it. See if we match. */
2997 info_column = edt.pi.cinfo->col_data[colx];
2998 info_column_len = strlen(info_column);
2999 for (i = 0; i < info_column_len; i++) {
3000 c_char = info_column[i];
3002 c_char = toupper(c_char);
3003 if (c_char == string[c_match]) {
3005 if (c_match == string_len) {
3006 result = MR_MATCHED;
3015 epan_dissect_cleanup(&edt);
3022 } cbs_t; /* "Counted byte string" */
3025 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
3026 search_direction dir)
3031 info.data_len = string_size;
3033 /* String or hex search? */
3035 /* String search - what type of string? */
3036 switch (cf->scs_type) {
3038 case SCS_ASCII_AND_UNICODE:
3039 return find_packet(cf, match_ascii_and_unicode, &info, dir);
3042 return find_packet(cf, match_ascii, &info, dir);
3045 return find_packet(cf, match_unicode, &info, dir);
3048 g_assert_not_reached();
3052 return find_packet(cf, match_binary, &info, dir);
3056 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3058 cbs_t *info = criterion;
3059 const guint8 *ascii_text = info->data;
3060 size_t textlen = info->data_len;
3061 match_result result;
3067 /* Load the frame's data. */
3068 if (!cf_read_frame(cf, fdata)) {
3069 /* Attempt to get the packet failed. */
3073 result = MR_NOTMATCHED;
3074 buf_len = fdata->pkt_len;
3076 while (i < buf_len) {
3079 c_char = toupper(c_char);
3080 if (c_char != '\0') {
3081 if (c_char == ascii_text[c_match]) {
3083 if (c_match == textlen) {
3084 result = MR_MATCHED;
3085 cf->search_pos = i; /* Save the position of the last character
3086 for highlighting the field. */
3091 g_assert(i>=c_match);
3092 i -= (guint32)c_match;
3102 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3104 cbs_t *info = criterion;
3105 const guint8 *ascii_text = info->data;
3106 size_t textlen = info->data_len;
3107 match_result result;
3113 /* Load the frame's data. */
3114 if (!cf_read_frame(cf, fdata)) {
3115 /* Attempt to get the packet failed. */
3119 result = MR_NOTMATCHED;
3120 buf_len = fdata->pkt_len;
3122 while (i < buf_len) {
3125 c_char = toupper(c_char);
3126 if (c_char == ascii_text[c_match]) {
3128 if (c_match == textlen) {
3129 result = MR_MATCHED;
3130 cf->search_pos = i; /* Save the position of the last character
3131 for highlighting the field. */
3136 g_assert(i>=c_match);
3137 i -= (guint32)c_match;
3147 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3149 cbs_t *info = criterion;
3150 const guint8 *ascii_text = info->data;
3151 size_t textlen = info->data_len;
3152 match_result result;
3158 /* Load the frame's data. */
3159 if (!cf_read_frame(cf, fdata)) {
3160 /* Attempt to get the packet failed. */
3164 result = MR_NOTMATCHED;
3165 buf_len = fdata->pkt_len;
3167 while (i < buf_len) {
3170 c_char = toupper(c_char);
3171 if (c_char == ascii_text[c_match]) {
3173 if (c_match == textlen) {
3174 result = MR_MATCHED;
3175 cf->search_pos = i; /* Save the position of the last character
3176 for highlighting the field. */
3182 g_assert(i>=(c_match*2));
3183 i -= (guint32)c_match*2;
3192 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3194 cbs_t *info = criterion;
3195 const guint8 *binary_data = info->data;
3196 size_t datalen = info->data_len;
3197 match_result result;
3202 /* Load the frame's data. */
3203 if (!cf_read_frame(cf, fdata)) {
3204 /* Attempt to get the packet failed. */
3208 result = MR_NOTMATCHED;
3209 buf_len = fdata->pkt_len;
3211 while (i < buf_len) {
3212 if (cf->pd[i] == binary_data[c_match]) {
3214 if (c_match == datalen) {
3215 result = MR_MATCHED;
3216 cf->search_pos = i; /* Save the position of the last character
3217 for highlighting the field. */
3222 g_assert(i>=c_match);
3223 i -= (guint32)c_match;
3232 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3233 search_direction dir)
3235 return find_packet(cf, match_dfilter, sfcode, dir);
3239 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3240 search_direction dir)
3245 if (!dfilter_compile(filter, &sfcode)) {
3247 * XXX - this shouldn't happen, as the filter string is machine
3252 if (sfcode == NULL) {
3254 * XXX - this shouldn't happen, as the filter string is machine
3259 result = find_packet(cf, match_dfilter, sfcode, dir);
3260 dfilter_free(sfcode);
3265 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3267 dfilter_t *sfcode = criterion;
3269 match_result result;
3271 /* Load the frame's data. */
3272 if (!cf_read_frame(cf, fdata)) {
3273 /* Attempt to get the packet failed. */
3277 epan_dissect_init(&edt, TRUE, FALSE);
3278 epan_dissect_prime_dfilter(&edt, sfcode);
3279 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3280 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3281 epan_dissect_cleanup(&edt);
3286 cf_find_packet_marked(capture_file *cf, search_direction dir)
3288 return find_packet(cf, match_marked, NULL, dir);
3292 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3294 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3298 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3300 return find_packet(cf, match_time_reference, NULL, dir);
3304 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3306 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3310 find_packet(capture_file *cf,
3311 match_result (*match_function)(capture_file *, frame_data *, void *),
3312 void *criterion, search_direction dir)
3314 frame_data *start_fd;
3317 frame_data *new_fd = NULL;
3318 progdlg_t *progbar = NULL;
3323 GTimeVal start_time;
3324 gchar status_str[100];
3325 int progbar_nextstep;
3326 int progbar_quantum;
3328 match_result result;
3330 start_fd = cf->current_frame;
3331 if (start_fd != NULL) {
3332 /* Iterate through the list of packets, starting at the packet we've
3333 picked, calling a routine to run the filter on the packet, see if
3334 it matches, and stop if so. */
3336 framenum = start_fd->num;
3338 /* Update the progress bar when it gets to this value. */
3339 progbar_nextstep = 0;
3340 /* When we reach the value that triggers a progress bar update,
3341 bump that value by this amount. */
3342 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3343 /* Progress so far. */
3347 g_get_current_time(&start_time);
3349 title = cf->sfilter?cf->sfilter:"";
3351 /* Create the progress bar if necessary.
3352 We check on every iteration of the loop, so that it takes no
3353 longer than the standard time to create it (otherwise, for a
3354 large file, we might take considerably longer than that standard
3355 time in order to get to the next progress bar step). */
3356 if (progbar == NULL)
3357 progbar = delayed_create_progress_dlg(cf->window, "Searching", title,
3358 FALSE, &stop_flag, &start_time, progbar_val);
3360 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3361 when we update it, we have to run the GTK+ main loop to get it
3362 to repaint what's pending, and doing so may involve an "ioctl()"
3363 to see if there's any pending input from an X server, and doing
3364 that for every packet can be costly, especially on a big file. */
3365 if (count >= progbar_nextstep) {
3366 /* let's not divide by zero. I should never be started
3367 * with count == 0, so let's assert that
3369 g_assert(cf->count > 0);
3371 progbar_val = (gfloat) count / cf->count;
3373 if (progbar != NULL) {
3374 g_snprintf(status_str, sizeof(status_str),
3375 "%4u of %u packets", count, cf->count);
3376 update_progress_dlg(progbar, progbar_val, status_str);
3379 progbar_nextstep += progbar_quantum;
3383 /* Well, the user decided to abort the search. Go back to the
3384 frame where we started. */
3389 /* Go past the current frame. */
3390 if (dir == SD_BACKWARD) {
3391 /* Go on to the previous frame. */
3392 if (framenum == 1) {
3394 * XXX - other apps have a bit more of a detailed message
3395 * for this, and instead of offering "OK" and "Cancel",
3396 * they offer things such as "Continue" and "Cancel";
3397 * we need an API for popping up alert boxes with
3398 * {Verb} and "Cancel".
3401 if (prefs.gui_find_wrap)
3403 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3404 framenum = cf->count; /* wrap around */
3408 statusbar_push_temporary_msg("Search reached the beginning.");
3409 framenum = start_fd->num; /* stay on previous packet */
3414 /* Go on to the next frame. */
3415 if (framenum == cf->count) {
3416 if (prefs.gui_find_wrap)
3418 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3419 framenum = 1; /* wrap around */
3423 statusbar_push_temporary_msg("Search reached the end.");
3424 framenum = start_fd->num; /* stay on previous packet */
3429 fdata = frame_data_sequence_find(cf->frames, framenum);
3433 /* Is this packet in the display? */
3434 if (fdata->flags.passed_dfilter) {
3435 /* Yes. Does it match the search criterion? */
3436 result = (*match_function)(cf, fdata, criterion);
3437 if (result == MR_ERROR) {
3438 /* Error; our caller has reported the error. Go back to the frame
3439 where we started. */
3442 } else if (result == MR_MATCHED) {
3443 /* Yes. Go to the new frame. */
3449 if (fdata == start_fd) {
3450 /* We're back to the frame we were on originally, and that frame
3451 doesn't match the search filter. The search failed. */
3456 /* We're done scanning the packets; destroy the progress bar if it
3458 if (progbar != NULL)
3459 destroy_progress_dlg(progbar);
3462 if (new_fd != NULL) {
3463 /* Find and select */
3464 cf->search_in_progress = TRUE;
3465 found = new_packet_list_select_row_from_data(new_fd);
3466 cf->search_in_progress = FALSE;
3467 cf->search_pos = 0; /* Reset the position */
3469 /* We didn't find a row corresponding to this frame.
3470 This means that the frame isn't being displayed currently,
3471 so we can't select it. */
3472 simple_message_box(ESD_TYPE_INFO, NULL,
3473 "The capture file is probably not fully dissected.",
3474 "End of capture exceeded!");
3477 return TRUE; /* success */
3479 return FALSE; /* failure */
3483 cf_goto_frame(capture_file *cf, guint fnumber)
3487 fdata = frame_data_sequence_find(cf->frames, fnumber);
3489 if (fdata == NULL) {
3490 /* we didn't find a packet with that packet number */
3491 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3492 return FALSE; /* we failed to go to that packet */
3494 if (!fdata->flags.passed_dfilter) {
3495 /* that packet currently isn't displayed */
3496 /* XXX - add it to the set of displayed packets? */
3497 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3498 return FALSE; /* we failed to go to that packet */
3501 if (!new_packet_list_select_row_from_data(fdata)) {
3502 /* We didn't find a row corresponding to this frame.
3503 This means that the frame isn't being displayed currently,
3504 so we can't select it. */
3505 simple_message_box(ESD_TYPE_INFO, NULL,
3506 "The capture file is probably not fully dissected.",
3507 "End of capture exceeded!");
3510 return TRUE; /* we got to that packet */
3514 cf_goto_top_frame(void)
3516 /* Find and select */
3517 new_packet_list_select_first_row();
3518 return TRUE; /* we got to that packet */
3522 cf_goto_bottom_frame(void)
3524 /* Find and select */
3525 new_packet_list_select_last_row();
3526 return TRUE; /* we got to that packet */
3530 * Go to frame specified by currently selected protocol tree item.
3533 cf_goto_framenum(capture_file *cf)
3535 header_field_info *hfinfo;
3538 if (cf->finfo_selected) {
3539 hfinfo = cf->finfo_selected->hfinfo;
3541 if (hfinfo->type == FT_FRAMENUM) {
3542 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3544 return cf_goto_frame(cf, framenum);
3551 /* Select the packet on a given row. */
3553 cf_select_packet(capture_file *cf, int row)
3555 epan_dissect_t *old_edt;
3558 /* Get the frame data struct pointer for this frame */
3559 fdata = new_packet_list_get_row_data(row);
3561 if (fdata == NULL) {
3562 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3563 the first entry is added to it by "real_insert_row()", that row
3564 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3565 our version and the vanilla GTK+ version).
3567 This means that a "select-row" signal is emitted; this causes
3568 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3571 "cf_select_packet()" fetches, above, the data associated with the
3572 row that was selected; however, as "gtk_clist_append()", which
3573 called "real_insert_row()", hasn't yet returned, we haven't yet
3574 associated any data with that row, so we get back a null pointer.
3576 We can't assume that there's only one frame in the frame list,
3577 either, as we may be filtering the display.
3579 We therefore assume that, if "row" is 0, i.e. the first row
3580 is being selected, and "cf->first_displayed" equals
3581 "cf->last_displayed", i.e. there's only one frame being
3582 displayed, that frame is the frame we want.
3584 This means we have to set "cf->first_displayed" and
3585 "cf->last_displayed" before adding the row to the
3586 GtkCList; see the comment in "add_packet_to_packet_list()". */
3588 if (row == 0 && cf->first_displayed == cf->last_displayed)
3589 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3592 /* If fdata _still_ isn't set simply give up. */
3593 if (fdata == NULL) {
3597 /* Get the data in that frame. */
3598 if (!cf_read_frame (cf, fdata)) {
3602 /* Record that this frame is the current frame. */
3603 cf->current_frame = fdata;
3604 cf->current_row = row;
3607 /* Create the logical protocol tree. */
3608 /* We don't need the columns here. */
3609 cf->edt = epan_dissect_new(TRUE, TRUE);
3611 tap_build_interesting(cf->edt);
3612 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3615 dfilter_macro_build_ftv_cache(cf->edt->tree);
3617 cf_callback_invoke(cf_cb_packet_selected, cf);
3619 if (old_edt != NULL)
3620 epan_dissect_free(old_edt);
3624 /* Unselect the selected packet, if any. */
3626 cf_unselect_packet(capture_file *cf)
3628 epan_dissect_t *old_edt = cf->edt;
3632 /* No packet is selected. */
3633 cf->current_frame = NULL;
3634 cf->current_row = 0;
3636 cf_callback_invoke(cf_cb_packet_unselected, cf);
3638 /* No protocol tree means no selected field. */
3639 cf_unselect_field(cf);
3641 /* Destroy the epan_dissect_t for the unselected packet. */
3642 if (old_edt != NULL)
3643 epan_dissect_free(old_edt);
3646 /* Unset the selected protocol tree field, if any. */
3648 cf_unselect_field(capture_file *cf)
3650 cf->finfo_selected = NULL;
3652 cf_callback_invoke(cf_cb_field_unselected, cf);
3656 * Mark a particular frame.
3659 cf_mark_frame(capture_file *cf, frame_data *frame)
3661 if (! frame->flags.marked) {
3662 frame->flags.marked = TRUE;
3663 if (cf->count > cf->marked_count)
3669 * Unmark a particular frame.
3672 cf_unmark_frame(capture_file *cf, frame_data *frame)
3674 if (frame->flags.marked) {
3675 frame->flags.marked = FALSE;
3676 if (cf->marked_count > 0)
3682 * Ignore a particular frame.
3685 cf_ignore_frame(capture_file *cf, frame_data *frame)
3687 if (! frame->flags.ignored) {
3688 frame->flags.ignored = TRUE;
3689 if (cf->count > cf->ignored_count)
3690 cf->ignored_count++;
3695 * Un-ignore a particular frame.
3698 cf_unignore_frame(capture_file *cf, frame_data *frame)
3700 if (frame->flags.ignored) {
3701 frame->flags.ignored = FALSE;
3702 if (cf->ignored_count > 0)
3703 cf->ignored_count--;
3708 * Read the comment in SHB block
3712 cf_read_shb_comment(capture_file *cf)
3714 wtapng_section_t *shb_inf;
3715 const gchar *temp_str;
3717 /* Get info from SHB */
3718 shb_inf = wtap_file_get_shb_info(cf->wth);
3721 temp_str = shb_inf->opt_comment;
3729 cf_update_capture_comment(capture_file *cf, gchar *comment)
3731 wtapng_section_t *shb_inf;
3733 /* Get info from SHB */
3734 shb_inf = wtap_file_get_shb_info(cf->wth);
3736 /* See if the comment has changed or not */
3737 if (shb_inf && shb_inf->opt_comment) {
3738 if (strcmp(shb_inf->opt_comment, comment) == 0) {
3747 /* The comment has changed, let's update it */
3748 wtap_write_shb_comment(cf->wth, comment);
3749 /* Mark the file as having unsaved changes */
3750 cf->unsaved_changes = TRUE;
3754 cf_update_packet_comment(capture_file *cf, frame_data *fdata, gchar *comment)
3756 if (fdata->opt_comment != NULL) {
3757 /* OK, remove the old comment. */
3758 g_free(fdata->opt_comment);
3759 fdata->opt_comment = NULL;
3760 cf->packet_comment_count--;
3762 if (comment != NULL) {
3763 /* Add the new comment. */
3764 fdata->opt_comment = comment;
3765 cf->packet_comment_count++;
3768 /* OK, we have unsaved changes. */
3769 cf->unsaved_changes = TRUE;
3773 * Does this capture file have any comments?
3776 cf_has_comments(capture_file *cf)
3778 return (cf_read_shb_comment(cf) != NULL || cf->packet_comment_count != 0);
3785 } save_callback_args_t;
3788 * Save a capture to a file, in a particular format, saving either
3789 * all packets, all currently-displayed packets, or all marked packets.
3791 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3792 * up a message box for the failure.
3795 save_packet(capture_file *cf _U_, frame_data *fdata,
3796 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3799 save_callback_args_t *args = argsp;
3800 struct wtap_pkthdr hdr;
3802 gchar *display_basename;
3804 /* init the wtap header for saving */
3805 /* XXX - these are the only flags that correspond to data that we have
3806 in the frame_data structure and that matter on a per-packet basis.
3808 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
3809 and "on the wire" lengths, or it doesn't.
3811 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
3814 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
3815 from the packet flags. */
3816 hdr.presence_flags = 0;
3817 if (fdata->flags.has_ts)
3818 hdr.presence_flags |= WTAP_HAS_TS;
3819 if (fdata->flags.has_ts)
3820 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
3821 hdr.ts.secs = fdata->abs_ts.secs;
3822 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3823 hdr.caplen = fdata->cap_len;
3824 hdr.len = fdata->pkt_len;
3825 hdr.pkt_encap = fdata->lnk_t;
3827 hdr.interface_id = fdata->interface_id; /* identifier of the interface. */
3829 hdr.opt_comment = fdata->opt_comment; /* NULL if not available */
3832 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
3834 /* and save the packet */
3835 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3837 /* Wiretap error. */
3840 case WTAP_ERR_UNSUPPORTED_ENCAP:
3842 * This is a problem with the particular frame we're writing;
3843 * note that, and give the frame number.
3845 simple_error_message_box(
3846 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3847 fdata->num, wtap_file_type_string(args->file_type));
3851 display_basename = g_filename_display_basename(args->fname);
3852 simple_error_message_box(
3853 "An error occurred while writing to the file \"%s\": %s.",
3854 display_basename, wtap_strerror(err));
3855 g_free(display_basename);
3860 write_failure_alert_box(args->fname, err);
3868 * Can this capture file be written out in any format using Wiretap
3869 * rather than by copying the raw data?
3872 cf_can_write_with_wiretap(capture_file *cf)
3876 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3877 /* To save a file with Wiretap, Wiretap has to handle that format,
3878 and its code to handle that format must be able to write a file
3879 with this file's encapsulation types. */
3880 if (wtap_dump_can_write_encaps(ft, cf->linktypes)) {
3881 /* OK, we can write it out in this type. */
3886 /* No, we couldn't save it in any format. */
3891 * Quick scan to find packet offsets.
3893 static cf_read_status_t
3894 rescan_file(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
3896 const struct wtap_pkthdr *phdr;
3901 progdlg_t *volatile progbar = NULL;
3903 volatile gint64 size;
3904 volatile float progbar_val;
3905 GTimeVal start_time;
3906 gchar status_str[100];
3907 volatile gint64 progbar_nextstep;
3908 volatile gint64 progbar_quantum;
3911 volatile int count = 0;
3913 volatile int displayed_once = 0;
3916 /* Close the old handle. */
3917 wtap_close(cf->wth);
3919 /* Open the new file. */
3920 cf->wth = wtap_open_offline(fname, err, &err_info, TRUE);
3921 if (cf->wth == NULL) {
3922 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
3923 return CF_READ_ERROR;
3926 /* We're scanning a file whose contents should be the same as what
3927 we had before, so we don't discard dissection state etc.. */
3930 /* Set the file name because we need it to set the follow stream filter.
3931 XXX - is that still true? We need it for other reasons, though,
3933 cf->filename = g_strdup(fname);
3935 /* Indicate whether it's a permanent or temporary file. */
3936 cf->is_tempfile = is_tempfile;
3938 /* No user changes yet. */
3939 cf->unsaved_changes = FALSE;
3941 cf->cd_t = wtap_file_type(cf->wth);
3942 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
3944 cf->snap = wtap_snapshot_length(cf->wth);
3945 if (cf->snap == 0) {
3946 /* Snapshot length not known. */
3947 cf->has_snap = FALSE;
3948 cf->snap = WTAP_MAX_PACKET_SIZE;
3950 cf->has_snap = TRUE;
3952 name_ptr = g_filename_display_basename(cf->filename);
3954 cf_callback_invoke(cf_cb_file_rescan_started, cf);
3956 /* Record whether the file is compressed.
3957 XXX - do we know this at open time? */
3958 cf->iscompressed = wtap_iscompressed(cf->wth);
3960 /* Find the size of the file. */
3961 size = wtap_file_size(cf->wth, NULL);
3963 /* Update the progress bar when it gets to this value. */
3964 progbar_nextstep = 0;
3965 /* When we reach the value that triggers a progress bar update,
3966 bump that value by this amount. */
3968 progbar_quantum = size/N_PROGBAR_UPDATES;
3969 if (progbar_quantum < MIN_QUANTUM)
3970 progbar_quantum = MIN_QUANTUM;
3972 progbar_quantum = 0;
3973 /* Progress so far. */
3977 g_get_current_time(&start_time);
3980 phdr = wtap_phdr(cf->wth);
3981 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
3983 fdata = frame_data_sequence_find(cf->frames, framenum);
3984 fdata->file_off = data_offset;
3987 file_pos = wtap_read_so_far(cf->wth);
3989 /* Create the progress bar if necessary.
3990 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
3992 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
3993 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
3994 progbar = delayed_create_progress_dlg(cf->window, "Rescanning", name_ptr,
3995 TRUE, &stop_flag, &start_time, progbar_val);
3998 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3999 when we update it, we have to run the GTK+ main loop to get it
4000 to repaint what's pending, and doing so may involve an "ioctl()"
4001 to see if there's any pending input from an X server, and doing
4002 that for every packet can be costly, especially on a big file. */
4003 if (file_pos >= progbar_nextstep) {
4004 if (progbar != NULL) {
4005 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4006 /* update the packet bar content on the first run or frequently on very large files */
4008 if (progbar_quantum > 500000 || displayed_once == 0) {
4009 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
4011 packets_bar_update();
4014 #endif /* HAVE_LIBPCAP */
4015 update_progress_dlg(progbar, progbar_val, status_str);
4017 progbar_nextstep += progbar_quantum;
4022 /* Well, the user decided to abort the rescan. Sadly, as this
4023 isn't a reread, recovering is difficult, so we'll just
4024 close the current capture. */
4028 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4029 it's not already there.
4030 XXX - yes, this is O(N), so if every packet had a different
4031 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4032 there are probably going to be a small number of encapsulation types
4034 cf_add_encapsulation_type(cf, phdr->pkt_encap);
4037 /* Free the display name */
4040 /* We're done reading the file; destroy the progress bar if it was created. */
4041 if (progbar != NULL)
4042 destroy_progress_dlg(progbar);
4044 /* We're done reading sequentially through the file. */
4045 cf->state = FILE_READ_DONE;
4047 /* Close the sequential I/O side, to free up memory it requires. */
4048 wtap_sequential_close(cf->wth);
4050 /* compute the time it took to load the file */
4051 compute_elapsed(&start_time);
4053 /* Set the file encapsulation type now; we don't know what it is until
4054 we've looked at all the packets, as we don't know until then whether
4055 there's more than one type (and thus whether it's
4056 WTAP_ENCAP_PER_PACKET). */
4057 cf->lnk_t = wtap_file_encap(cf->wth);
4059 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
4062 /* Our caller will give up at this point. */
4063 return CF_READ_ABORTED;
4067 /* Put up a message box noting that the read failed somewhere along
4068 the line. Don't throw out the stuff we managed to read, though,
4072 case WTAP_ERR_UNSUPPORTED:
4073 simple_error_message_box(
4074 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4079 case WTAP_ERR_UNSUPPORTED_ENCAP:
4080 simple_error_message_box(
4081 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
4086 case WTAP_ERR_CANT_READ:
4087 simple_error_message_box(
4088 "An attempt to read from the capture file failed for"
4089 " some unknown reason.");
4092 case WTAP_ERR_SHORT_READ:
4093 simple_error_message_box(
4094 "The capture file appears to have been cut short"
4095 " in the middle of a packet.");
4098 case WTAP_ERR_BAD_FILE:
4099 simple_error_message_box(
4100 "The capture file appears to be damaged or corrupt.\n(%s)",
4105 case WTAP_ERR_DECOMPRESS:
4106 simple_error_message_box(
4107 "The compressed capture file appears to be damaged or corrupt.\n"
4113 simple_error_message_box(
4114 "An error occurred while reading the"
4115 " capture file: %s.", wtap_strerror(*err));
4118 return CF_READ_ERROR;
4124 cf_save_packets(capture_file *cf, const char *fname, guint save_format,
4125 gboolean compressed, gboolean discard_comments,
4126 gboolean dont_reopen)
4128 gchar *fname_new = NULL;
4137 save_callback_args_t callback_args;
4139 gchar *display_basename;
4144 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4146 if (save_format == cf->cd_t && compressed == cf->iscompressed
4147 && !discard_comments && !cf->unsaved_changes) {
4148 /* We're saving in the format it's already in, and we're
4149 not discarding comments, and there are no changes we have
4150 in memory that aren't saved to the file, so we can just move
4151 or copy the raw data. */
4153 if (cf->is_tempfile) {
4154 /* The file being saved is a temporary file from a live
4155 capture, so it doesn't need to stay around under that name;
4156 first, try renaming the capture buffer file to the new name.
4157 This acts as a "safe save", in that, if the file already
4158 exists, the existing file will be removed only if the rename
4161 Sadly, on Windows, as we have the current capture file
4162 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4163 (to cause the rename to remove an existing target), as
4164 done by ws_stdio_rename() (ws_rename() is #defined to
4165 be ws_stdio_rename() on Windows) will fail.
4167 According to the MSDN documentation for CreateFile(), if,
4168 when we open a capture file, we were to directly do a CreateFile(),
4169 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4170 convert it to a file descriptor with _open_osfhandle(),
4171 that would allow the file to be renamed out from under us.
4173 However, that doesn't work in practice. Perhaps the problem
4174 is that the process doing the rename is the process that
4175 has the file open. */
4177 if (ws_rename(cf->filename, fname) == 0) {
4178 /* That succeeded - there's no need to copy the source file. */
4179 how_to_save = SAVE_WITH_MOVE;
4181 if (errno == EXDEV) {
4182 /* They're on different file systems, so we have to copy the
4184 how_to_save = SAVE_WITH_COPY;
4186 /* The rename failed, but not because they're on different
4187 file systems - put up an error message. (Or should we
4188 just punt and try to copy? The only reason why I'd
4189 expect the rename to fail and the copy to succeed would
4190 be if we didn't have permission to remove the file from
4191 the temporary directory, and that might be fixable - but
4192 is it worth requiring the user to go off and fix it?) */
4193 cf_rename_failure_alert_box(fname, errno);
4198 how_to_save = SAVE_WITH_COPY;
4201 /* It's a permanent file, so we should copy it, and not remove the
4203 how_to_save = SAVE_WITH_COPY;
4206 if (how_to_save == SAVE_WITH_COPY) {
4207 /* Copy the file, if we haven't moved it. If we're overwriting
4208 an existing file, we do it with a "safe save", by writing
4209 to a new file and, if the write succeeds, renaming the
4210 new file on top of the old file. */
4211 if (file_exists(fname)) {
4212 fname_new = g_strdup_printf("%s~", fname);
4213 if (!copy_file_binary_mode(cf->filename, fname_new))
4216 if (!copy_file_binary_mode(cf->filename, fname))
4221 /* Either we're saving in a different format or we're saving changes,
4222 such as added, modified, or removed comments, that haven't yet
4223 been written to the underlying file; we can't do that by copying
4224 or moving the capture file, we have to do it by writing the packets
4227 wtapng_section_t *shb_hdr = NULL;
4228 wtapng_iface_descriptions_t *idb_inf = NULL;
4231 shb_hdr = wtap_file_get_shb_info(cf->wth);
4232 idb_inf = wtap_file_get_idb_info(cf->wth);
4234 /* Determine what file encapsulation type we should use. */
4235 encap = wtap_dump_file_encap_type(cf->linktypes);
4237 if (file_exists(fname)) {
4238 /* We're overwriting an existing file; write out to a new file,
4239 and, if that succeeds, rename the new file on top of the
4240 old file. That makes this a "safe save", so that we don't
4241 lose the old file if we have a problem writing out the new
4242 file. (If the existing file is the current capture file,
4243 we *HAVE* to do that, otherwise we're overwriting the file
4244 from which we're reading the packets that we're writing!) */
4245 fname_new = g_strdup_printf("%s~", fname);
4246 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4247 compressed, shb_hdr, idb_inf, &err);
4249 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4250 compressed, shb_hdr, idb_inf, &err);
4256 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4260 /* Add address resolution */
4261 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4263 /* Iterate through the list of packets, processing all the packets. */
4264 callback_args.pdh = pdh;
4265 callback_args.fname = fname;
4266 callback_args.file_type = save_format;
4267 switch (process_specified_packets(cf, NULL, "Saving", "packets",
4268 TRUE, save_packet, &callback_args)) {
4271 /* Completed successfully. */
4275 /* The user decided to abort the saving.
4276 If we're writing to a temporary file, remove it.
4277 XXX - should we do so even if we're not writing to a
4279 wtap_dump_close(pdh, &err);
4280 if (fname_new != NULL)
4281 ws_unlink(fname_new);
4282 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
4283 return CF_WRITE_ABORTED;
4286 /* Error while saving.
4287 If we're writing to a temporary file, remove it. */
4288 if (fname_new != NULL)
4289 ws_unlink(fname_new);
4290 wtap_dump_close(pdh, &err);
4294 if (!wtap_dump_close(pdh, &err)) {
4295 cf_close_failure_alert_box(fname, err);
4299 how_to_save = SAVE_WITH_WTAP;
4302 if (fname_new != NULL) {
4303 /* We wrote out to fname_new, and should rename it on top of
4304 fname. fname_new is now closed, so that should be possible even
4305 on Windows. However, on Windows, we first need to close whatever
4306 file descriptors we have open for fname. */
4308 wtap_fdclose(cf->wth);
4310 /* Now do the rename. */
4311 if (ws_rename(fname_new, fname) == -1) {
4312 /* Well, the rename failed. */
4313 cf_rename_failure_alert_box(fname, errno);
4315 /* Attempt to reopen the random file descriptor using the
4316 current file's filename. (At this point, the sequential
4317 file descriptor is closed.) */
4318 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4319 /* Oh, well, we're screwed. */
4320 display_basename = g_filename_display_basename(cf->filename);
4321 simple_error_message_box(
4322 file_open_error_message(err, FALSE), display_basename);
4323 g_free(display_basename);
4330 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4331 cf->unsaved_changes = FALSE;
4334 switch (how_to_save) {
4336 case SAVE_WITH_MOVE:
4337 /* We just moved the file, so the wtap structure refers to the
4338 new file, and all the information other than the filename
4339 and the "is temporary" status applies to the new file; just
4341 g_free(cf->filename);
4342 cf->filename = g_strdup(fname);
4343 cf->is_tempfile = FALSE;
4344 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4347 case SAVE_WITH_COPY:
4348 /* We just copied the file, s all the information other than
4349 the wtap structure, the filename, and the "is temporary"
4350 status applies to the new file; just update that. */
4351 wtap_close(cf->wth);
4352 cf->wth = wtap_open_offline(fname, &err, &err_info, TRUE);
4353 if (cf->wth == NULL) {
4354 cf_open_failure_alert_box(fname, err, err_info, FALSE, 0);
4357 g_free(cf->filename);
4358 cf->filename = g_strdup(fname);
4359 cf->is_tempfile = FALSE;
4361 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4364 case SAVE_WITH_WTAP:
4365 /* Open and read the file we saved to.
4367 XXX - this is somewhat of a waste; we already have the
4368 packets, all this gets us is updated file type information
4369 (which we could just stuff into "cf"), and having the new
4370 file be the one we have opened and from which we're reading
4371 the data, and it means we have to spend time opening and
4372 reading the file, which could be a significant amount of
4373 time if the file is large.
4375 If the capture-file-writing code were to return the
4376 seek offset of each packet it writes, we could save that
4377 in the frame_data structure for the frame, and just open
4378 the file without reading it again...
4380 ...as long as, for gzipped files, the process of writing
4381 out the file *also* generates the information needed to
4382 support fast random access to the compressed file. */
4383 if (rescan_file(cf, fname, FALSE, &err) != CF_READ_OK) {
4384 /* The rescan failed; just close the file. Either
4385 a dialog was popped up for the failure, so the
4386 user knows what happened, or they stopped the
4387 rescan, in which case they know what happened. */
4393 /* If we were told to discard the comments, do so. */
4394 if (discard_comments) {
4395 /* Remove SHB comment, if any. */
4396 wtap_write_shb_comment(cf->wth, NULL);
4398 /* Remove packet comments. */
4399 for (framenum = 1; framenum <= cf->count; framenum++) {
4400 fdata = frame_data_sequence_find(cf->frames, framenum);
4401 if (fdata->opt_comment) {
4402 g_free(fdata->opt_comment);
4403 fdata->opt_comment = NULL;
4404 cf->packet_comment_count--;
4412 if (fname_new != NULL) {
4413 /* We were trying to write to a temporary file; get rid of it if it
4414 exists. (We don't care whether this fails, as, if it fails,
4415 there's not much we can do about it. I guess if it failed for
4416 a reason other than "it doesn't exist", we could report an
4417 error, so the user knows there's a junk file that they might
4418 want to clean up.) */
4419 ws_unlink(fname_new);
4422 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4423 return CF_WRITE_ERROR;
4427 cf_export_specified_packets(capture_file *cf, const char *fname,
4428 packet_range_t *range, guint save_format,
4429 gboolean compressed)
4431 gchar *fname_new = NULL;
4434 save_callback_args_t callback_args;
4435 wtapng_section_t *shb_hdr = NULL;
4436 wtapng_iface_descriptions_t *idb_inf = NULL;
4439 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4441 packet_range_process_init(range);
4443 /* We're writing out specified packets from the specified capture
4444 file to another file. Even if all captured packets are to be
4445 written, don't special-case the operation - read each packet
4446 and then write it out if it's one of the specified ones. */
4448 shb_hdr = wtap_file_get_shb_info(cf->wth);
4449 idb_inf = wtap_file_get_idb_info(cf->wth);
4451 /* Determine what file encapsulation type we should use. */
4452 encap = wtap_dump_file_encap_type(cf->linktypes);
4454 if (file_exists(fname)) {
4455 /* We're overwriting an existing file; write out to a new file,
4456 and, if that succeeds, rename the new file on top of the
4457 old file. That makes this a "safe save", so that we don't
4458 lose the old file if we have a problem writing out the new
4459 file. (If the existing file is the current capture file,
4460 we *HAVE* to do that, otherwise we're overwriting the file
4461 from which we're reading the packets that we're writing!) */
4462 fname_new = g_strdup_printf("%s~", fname);
4463 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4464 compressed, shb_hdr, idb_inf, &err);
4466 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4467 compressed, shb_hdr, idb_inf, &err);
4473 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4477 /* Add address resolution */
4478 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4480 /* Iterate through the list of packets, processing the packets we were
4483 XXX - we've already called "packet_range_process_init(range)", but
4484 "process_specified_packets()" will do it again. Fortunately,
4485 that's harmless in this case, as we haven't done anything to
4486 "range" since we initialized it. */
4487 callback_args.pdh = pdh;
4488 callback_args.fname = fname;
4489 callback_args.file_type = save_format;
4490 switch (process_specified_packets(cf, range, "Writing", "specified packets",
4491 TRUE, save_packet, &callback_args)) {
4494 /* Completed successfully. */
4498 /* The user decided to abort the saving.
4499 If we're writing to a temporary file, remove it.
4500 XXX - should we do so even if we're not writing to a
4502 wtap_dump_close(pdh, &err);
4503 if (fname_new != NULL)
4504 ws_unlink(fname_new);
4505 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4506 return CF_WRITE_ABORTED;
4510 /* Error while saving.
4511 If we're writing to a temporary file, remove it. */
4512 if (fname_new != NULL)
4513 ws_unlink(fname_new);
4514 wtap_dump_close(pdh, &err);
4518 if (!wtap_dump_close(pdh, &err)) {
4519 cf_close_failure_alert_box(fname, err);
4523 if (fname_new != NULL) {
4524 /* We wrote out to fname_new, and should rename it on top of
4525 fname; fname is now closed, so that should be possible even
4526 on Windows. Do the rename. */
4527 if (ws_rename(fname_new, fname) == -1) {
4528 /* Well, the rename failed. */
4529 cf_rename_failure_alert_box(fname, errno);
4534 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
4538 if (fname_new != NULL) {
4539 /* We were trying to write to a temporary file; get rid of it if it
4540 exists. (We don't care whether this fails, as, if it fails,
4541 there's not much we can do about it. I guess if it failed for
4542 a reason other than "it doesn't exist", we could report an
4543 error, so the user knows there's a junk file that they might
4544 want to clean up.) */
4545 ws_unlink(fname_new);
4548 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
4549 return CF_WRITE_ERROR;
4553 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4554 gboolean for_writing, int file_type)
4556 gchar *display_basename;
4559 /* Wiretap error. */
4560 display_basename = g_filename_display_basename(filename);
4563 case WTAP_ERR_NOT_REGULAR_FILE:
4564 simple_error_message_box(
4565 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4569 case WTAP_ERR_RANDOM_OPEN_PIPE:
4570 /* Seen only when opening a capture file for reading. */
4571 simple_error_message_box(
4572 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
4573 "To capture from a pipe or FIFO use wireshark -i -",
4577 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4578 /* Seen only when opening a capture file for reading. */
4579 simple_error_message_box(
4580 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4584 case WTAP_ERR_UNSUPPORTED:
4585 /* Seen only when opening a capture file for reading. */
4586 simple_error_message_box(
4587 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4589 display_basename, err_info);
4593 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4594 /* Seen only when opening a capture file for writing. */
4595 simple_error_message_box(
4596 "The file \"%s\" is a pipe, and %s capture files can't be "
4597 "written to a pipe.",
4598 display_basename, wtap_file_type_string(file_type));
4601 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4602 /* Seen only when opening a capture file for writing. */
4603 simple_error_message_box(
4604 "Wireshark doesn't support writing capture files in that format.");
4607 case WTAP_ERR_UNSUPPORTED_ENCAP:
4609 simple_error_message_box("Wireshark can't save this capture in that format.");
4611 simple_error_message_box(
4612 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4614 display_basename, err_info);
4619 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4621 simple_error_message_box(
4622 "Wireshark can't save this capture in that format.");
4624 simple_error_message_box(
4625 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4630 case WTAP_ERR_BAD_FILE:
4631 /* Seen only when opening a capture file for reading. */
4632 simple_error_message_box(
4633 "The file \"%s\" appears to be damaged or corrupt.\n"
4635 display_basename, err_info);
4639 case WTAP_ERR_CANT_OPEN:
4641 simple_error_message_box(
4642 "The file \"%s\" could not be created for some unknown reason.",
4645 simple_error_message_box(
4646 "The file \"%s\" could not be opened for some unknown reason.",
4651 case WTAP_ERR_SHORT_READ:
4652 simple_error_message_box(
4653 "The file \"%s\" appears to have been cut short"
4654 " in the middle of a packet or other data.",
4658 case WTAP_ERR_SHORT_WRITE:
4659 simple_error_message_box(
4660 "A full header couldn't be written to the file \"%s\".",
4664 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4665 simple_error_message_box(
4666 "This file type cannot be written as a compressed file.");
4669 case WTAP_ERR_DECOMPRESS:
4670 simple_error_message_box(
4671 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
4672 "(%s)", display_basename, err_info);
4677 simple_error_message_box(
4678 "The file \"%s\" could not be %s: %s.",
4680 for_writing ? "created" : "opened",
4681 wtap_strerror(err));
4684 g_free(display_basename);
4687 open_failure_alert_box(filename, err, for_writing);
4692 * XXX - whether we mention the source pathname, the target pathname,
4693 * or both depends on the error and on what we find if we look for
4694 * one or both of them.
4697 cf_rename_failure_alert_box(const char *filename, int err)
4699 gchar *display_basename;
4701 display_basename = g_filename_display_basename(filename);
4705 /* XXX - should check whether the source exists and, if not,
4706 report it as the problem and, if so, report the destination
4708 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
4713 /* XXX - if we're doing a rename after a safe save, we should
4714 probably say something else. */
4715 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
4720 /* XXX - this should probably mention both the source and destination
4722 simple_error_message_box("The file \"%s\" could not be moved: %s.",
4723 display_basename, wtap_strerror(err));
4726 g_free(display_basename);
4729 /* Check for write errors - if the file is being written to an NFS server,
4730 a write error may not show up until the file is closed, as NFS clients
4731 might not send writes to the server until the "write()" call finishes,
4732 so that the write may fail on the server but the "write()" may succeed. */
4734 cf_close_failure_alert_box(const char *filename, int err)
4736 gchar *display_basename;
4739 /* Wiretap error. */
4740 display_basename = g_filename_display_basename(filename);
4743 case WTAP_ERR_CANT_CLOSE:
4744 simple_error_message_box(
4745 "The file \"%s\" couldn't be closed for some unknown reason.",
4749 case WTAP_ERR_SHORT_WRITE:
4750 simple_error_message_box(
4751 "Not all the packets could be written to the file \"%s\".",
4756 simple_error_message_box(
4757 "An error occurred while closing the file \"%s\": %s.",
4758 display_basename, wtap_strerror(err));
4761 g_free(display_basename);
4764 We assume that a close error from the OS is really a write error. */
4765 write_failure_alert_box(filename, err);
4769 /* Reload the current capture file. */
4771 cf_reload(capture_file *cf) {
4773 gboolean is_tempfile;
4776 /* If the file could be opened, "cf_open()" calls "cf_close()"
4777 to get rid of state for the old capture file before filling in state
4778 for the new capture file. "cf_close()" will remove the file if
4779 it's a temporary file; we don't want that to happen (for one thing,
4780 it'd prevent subsequent reopens from working). Remember whether it's
4781 a temporary file, mark it as not being a temporary file, and then
4782 reopen it as the type of file it was.
4784 Also, "cf_close()" will free "cf->filename", so we must make
4785 a copy of it first. */
4786 filename = g_strdup(cf->filename);
4787 is_tempfile = cf->is_tempfile;
4788 cf->is_tempfile = FALSE;
4789 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4790 switch (cf_read(cf, TRUE)) {
4794 /* Just because we got an error, that doesn't mean we were unable
4795 to read any of the file; we handle what we could get from the
4799 case CF_READ_ABORTED:
4800 /* The user bailed out of re-reading the capture file; the
4801 capture file has been closed - just free the capture file name
4802 string and return (without changing the last containing
4808 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4809 Instead, the file was left open, so we should restore "cf->is_tempfile"
4812 XXX - change the menu? Presumably "cf_open()" will do that;
4813 make sure it does! */
4814 cf->is_tempfile = is_tempfile;
4816 /* "cf_open()" made a copy of the file name we handed it, so
4817 we should free up our copy. */
4827 * indent-tabs-mode: nil
4830 * ex: set shiftwidth=2 tabstop=8 expandtab:
4831 * :indentSize=2:tabSize=8:noTabs=true: