6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
62 #include <epan/prefs.h>
63 #include <epan/dfilter/dfilter.h>
64 #include <epan/epan_dissect.h>
66 #include <epan/dissectors/packet-data.h>
67 #include <epan/dissectors/packet-ber.h>
68 #include <epan/timestamp.h>
69 #include <epan/dfilter/dfilter-macro.h>
70 #include <wsutil/file_util.h>
71 #include <epan/strutil.h>
72 #include <epan/addr_resolv.h>
74 #include "ui/alert_box.h"
75 #include "ui/simple_dialog.h"
76 #include "ui/main_statusbar.h"
77 #include "ui/progress_dlg.h"
78 #include "ui/ui_util.h"
81 gboolean auto_scroll_live;
84 static guint32 cum_bytes;
85 static nstime_t first_ts;
86 static nstime_t prev_dis_ts;
87 static nstime_t prev_cap_ts;
89 static gulong computed_elapsed;
91 static void cf_reset_state(capture_file *cf);
93 static int read_packet(capture_file *cf, dfilter_t *dfcode,
94 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
96 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
97 gboolean refilter, gboolean redissect);
104 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
106 static void match_subtree_text(proto_node *node, gpointer data);
107 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
111 static match_result match_ascii(capture_file *cf, frame_data *fdata,
113 static match_result match_unicode(capture_file *cf, frame_data *fdata,
115 static match_result match_binary(capture_file *cf, frame_data *fdata,
117 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
119 static match_result match_marked(capture_file *cf, frame_data *fdata,
121 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
123 static gboolean find_packet(capture_file *cf,
124 match_result (*match_function)(capture_file *, frame_data *, void *),
125 void *criterion, search_direction dir);
127 static void cf_open_failure_alert_box(const char *filename, int err,
128 gchar *err_info, gboolean for_writing,
130 static const char *file_rename_error_message(int err);
131 static void cf_close_failure_alert_box(const char *filename, int err);
132 static void ref_time_packets(capture_file *cf);
133 /* Update the progress bar this many times when reading a file. */
134 #define N_PROGBAR_UPDATES 100
135 /* We read around 200k/100ms don't update the progress bar more often than that */
136 #define MIN_QUANTUM 200000
137 #define MIN_NUMBER_OF_PACKET 1500
140 * We could probably use g_signal_...() instead of the callbacks below but that
141 * would require linking our CLI programs to libgobject and creating an object
142 * instance for the signals.
145 cf_callback_t cb_fct;
147 } cf_callback_data_t;
149 static GList *cf_callbacks = NULL;
152 cf_callback_invoke(int event, gpointer data)
154 cf_callback_data_t *cb;
155 GList *cb_item = cf_callbacks;
157 /* there should be at least one interested */
158 g_assert(cb_item != NULL);
160 while(cb_item != NULL) {
162 cb->cb_fct(event, data, cb->user_data);
163 cb_item = g_list_next(cb_item);
169 cf_callback_add(cf_callback_t func, gpointer user_data)
171 cf_callback_data_t *cb;
173 cb = g_malloc(sizeof(cf_callback_data_t));
175 cb->user_data = user_data;
177 cf_callbacks = g_list_append(cf_callbacks, cb);
181 cf_callback_remove(cf_callback_t func)
183 cf_callback_data_t *cb;
184 GList *cb_item = cf_callbacks;
186 while(cb_item != NULL) {
188 if(cb->cb_fct == func) {
189 cf_callbacks = g_list_remove(cf_callbacks, cb);
193 cb_item = g_list_next(cb_item);
196 g_assert_not_reached();
200 cf_timestamp_auto_precision(capture_file *cf)
203 int prec = timestamp_get_precision();
206 /* don't try to get the file's precision if none is opened */
207 if(cf->state == FILE_CLOSED) {
211 /* if we are in auto mode, set precision of current file */
212 if(prec == TS_PREC_AUTO ||
213 prec == TS_PREC_AUTO_SEC ||
214 prec == TS_PREC_AUTO_DSEC ||
215 prec == TS_PREC_AUTO_CSEC ||
216 prec == TS_PREC_AUTO_MSEC ||
217 prec == TS_PREC_AUTO_USEC ||
218 prec == TS_PREC_AUTO_NSEC)
220 switch(wtap_file_tsprecision(cf->wth)) {
221 case(WTAP_FILE_TSPREC_SEC):
222 timestamp_set_precision(TS_PREC_AUTO_SEC);
224 case(WTAP_FILE_TSPREC_DSEC):
225 timestamp_set_precision(TS_PREC_AUTO_DSEC);
227 case(WTAP_FILE_TSPREC_CSEC):
228 timestamp_set_precision(TS_PREC_AUTO_CSEC);
230 case(WTAP_FILE_TSPREC_MSEC):
231 timestamp_set_precision(TS_PREC_AUTO_MSEC);
233 case(WTAP_FILE_TSPREC_USEC):
234 timestamp_set_precision(TS_PREC_AUTO_USEC);
236 case(WTAP_FILE_TSPREC_NSEC):
237 timestamp_set_precision(TS_PREC_AUTO_NSEC);
240 g_assert_not_reached();
243 /* Set the column widths of those columns that show the time in
244 "command-line-specified" format. */
245 for (i = 0; i < cf->cinfo.num_cols; i++) {
246 if (col_has_time_fmt(&cf->cinfo, i)) {
247 new_packet_list_resize_column(i);
253 cf_get_computed_elapsed(void)
255 return computed_elapsed;
258 static void reset_elapsed(void)
260 computed_elapsed = 0;
263 static void compute_elapsed(GTimeVal *start_time)
268 g_get_current_time(&time_now);
270 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
271 time_now.tv_usec - start_time->tv_usec;
273 computed_elapsed = (gulong) (delta_time / 1000); /* ms */
277 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
282 wth = wtap_open_offline(fname, err, &err_info, TRUE);
286 /* The open succeeded. Close whatever capture file we had open,
287 and fill in the information for this file. */
290 /* Cleanup all data structures used for dissection. */
291 cleanup_dissection();
292 /* Initialize all data structures used for dissection. */
295 /* We're about to start reading the file. */
296 cf->state = FILE_READ_IN_PROGRESS;
301 /* Set the file name because we need it to set the follow stream filter.
302 XXX - is that still true? We need it for other reasons, though,
304 cf->filename = g_strdup(fname);
306 /* Indicate whether it's a permanent or temporary file. */
307 cf->is_tempfile = is_tempfile;
309 /* No user changes yet. */
310 cf->unsaved_changes = FALSE;
314 cf->cd_t = wtap_file_type(cf->wth);
316 cf->displayed_count = 0;
317 cf->marked_count = 0;
318 cf->ignored_count = 0;
319 cf->ref_time_count = 0;
320 cf->drops_known = FALSE;
322 cf->snap = wtap_snapshot_length(cf->wth);
324 /* Snapshot length not known. */
325 cf->has_snap = FALSE;
326 cf->snap = WTAP_MAX_PACKET_SIZE;
330 /* Allocate a frame_data_sequence for the frames in this file */
331 cf->frames = new_frame_data_sequence();
333 nstime_set_zero(&cf->elapsed_time);
334 nstime_set_unset(&first_ts);
335 nstime_set_unset(&prev_dis_ts);
336 nstime_set_unset(&prev_cap_ts);
339 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
340 cf_timestamp_auto_precision(cf);
342 new_packet_list_queue_draw();
343 fileset_file_opened(fname);
345 if(cf->cd_t == WTAP_FILE_BER) {
346 /* tell the BER dissector the file name */
347 ber_set_filename(cf->filename);
350 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
351 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
356 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
362 * Reset the state for the currently closed file, but don't do the
363 * UI callbacks; this is for use in "cf_open()", where we don't
364 * want the UI to go from "file open" to "file closed" back to
365 * "file open", we want it to go from "old file open" to "new file
366 * open and being read".
368 * XXX - currently, cf_open() calls cf_close(), rather than
372 cf_reset_state(capture_file *cf)
374 /* Die if we're in the middle of reading a file. */
375 g_assert(cf->state != FILE_READ_IN_PROGRESS);
381 /* We have no file open... */
382 if (cf->filename != NULL) {
383 /* If it's a temporary file, remove it. */
385 ws_unlink(cf->filename);
386 g_free(cf->filename);
389 /* ...which means we have no changes to that file to save. */
390 cf->unsaved_changes = FALSE;
392 dfilter_free(cf->rfcode);
394 if (cf->frames != NULL) {
395 free_frame_data_sequence(cf->frames);
398 #ifdef WANT_PACKET_EDITOR
399 if (cf->edited_frames) {
400 g_tree_destroy(cf->edited_frames);
401 cf->edited_frames = NULL;
404 cf_unselect_packet(cf); /* nothing to select */
405 cf->first_displayed = 0;
406 cf->last_displayed = 0;
408 /* No frames, no frame selected, no field in that frame selected. */
410 cf->current_frame = 0;
412 cf->finfo_selected = NULL;
414 /* Clear the packet list. */
415 new_packet_list_freeze();
416 new_packet_list_clear();
417 new_packet_list_thaw();
420 nstime_set_zero(&cf->elapsed_time);
422 reset_tap_listeners();
424 /* We have no file open. */
425 cf->state = FILE_CLOSED;
427 fileset_file_closed();
430 /* Reset everything to a pristine state */
432 cf_close(capture_file *cf)
434 if(cf->state != FILE_CLOSED) {
435 cf_callback_invoke(cf_cb_file_closing, cf);
437 /* close things, if not already closed before */
438 color_filters_cleanup();
440 cleanup_dissection();
442 cf_callback_invoke(cf_cb_file_closed, cf);
446 /* an out of memory exception occured, wait for a user button press to exit */
447 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
453 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
457 progbar_val = (gfloat) file_pos / (gfloat) size;
458 if (progbar_val > 1.0) {
460 /* The file probably grew while we were reading it.
461 * Update file size, and try again.
463 size = wtap_file_size(cf->wth, NULL);
466 progbar_val = (gfloat) file_pos / (gfloat) size;
468 /* If it's still > 1, either "wtap_file_size()" failed (in which
469 * case there's not much we can do about it), or the file
470 * *shrank* (in which case there's not much we can do about
471 * it); just clip the progress value at 1.0.
473 if (progbar_val > 1.0f)
477 g_snprintf(status_str, status_size,
478 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
479 file_pos / 1024, size / 1024);
485 cf_read(capture_file *cf, gboolean reloading)
491 char errmsg_errno[1024+1];
494 progdlg_t *volatile progbar = NULL;
496 volatile gint64 size;
497 volatile float progbar_val;
499 gchar status_str[100];
500 volatile gint64 progbar_nextstep;
501 volatile gint64 progbar_quantum;
503 gboolean filtering_tap_listeners;
505 volatile int count = 0;
507 volatile int displayed_once = 0;
511 /* Compile the current display filter.
512 * We assume this will not fail since cf->dfilter is only set in
513 * cf_filter IFF the filter was valid.
515 compiled = dfilter_compile(cf->dfilter, &dfcode);
516 g_assert(!cf->dfilter || (compiled && dfcode));
518 /* Do we have any tap listeners with filters? */
519 filtering_tap_listeners = have_filtering_tap_listeners();
521 /* Get the union of the flags for all tap listeners. */
522 tap_flags = union_of_tap_listener_flags();
524 reset_tap_listeners();
526 name_ptr = g_filename_display_basename(cf->filename);
529 cf_callback_invoke(cf_cb_file_reload_started, cf);
531 cf_callback_invoke(cf_cb_file_read_started, cf);
533 /* Record whether the file is compressed. */
534 cf->iscompressed = wtap_iscompressed(cf->wth);
536 /* Find the size of the file. */
537 size = wtap_file_size(cf->wth, NULL);
539 /* Update the progress bar when it gets to this value. */
540 progbar_nextstep = 0;
541 /* When we reach the value that triggers a progress bar update,
542 bump that value by this amount. */
544 progbar_quantum = size/N_PROGBAR_UPDATES;
545 if (progbar_quantum < MIN_QUANTUM)
546 progbar_quantum = MIN_QUANTUM;
549 /* Progress so far. */
552 /* The packet list window will be empty untill the file is completly loaded */
553 new_packet_list_freeze();
556 g_get_current_time(&start_time);
558 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
561 file_pos = wtap_read_so_far(cf->wth);
563 /* Create the progress bar if necessary.
564 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
566 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
567 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
569 progbar = delayed_create_progress_dlg("Reloading", name_ptr,
570 TRUE, &stop_flag, &start_time, progbar_val);
572 progbar = delayed_create_progress_dlg("Loading", name_ptr,
573 TRUE, &stop_flag, &start_time, progbar_val);
576 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
577 when we update it, we have to run the GTK+ main loop to get it
578 to repaint what's pending, and doing so may involve an "ioctl()"
579 to see if there's any pending input from an X server, and doing
580 that for every packet can be costly, especially on a big file. */
581 if (file_pos >= progbar_nextstep) {
582 if (progbar != NULL) {
583 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
584 /* update the packet bar content on the first run or frequently on very large files */
586 if (progbar_quantum > 500000 || displayed_once == 0) {
587 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
589 packets_bar_update();
592 #endif /* HAVE_LIBPCAP */
593 update_progress_dlg(progbar, progbar_val, status_str);
595 progbar_nextstep += progbar_quantum;
600 /* Well, the user decided to abort the read. He/She will be warned and
601 it might be enough for him/her to work with the already loaded
603 This is especially true for very large capture files, where you don't
604 want to wait loading the whole file (which may last minutes or even
605 hours even on fast machines) just to see that it was the wrong file. */
609 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
611 CATCH(OutOfMemoryError) {
614 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
615 "%sOut Of Memory!%s\n"
617 "Sorry, but Wireshark has to terminate now!\n"
619 "Some infos / workarounds can be found at:\n"
620 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
621 simple_dialog_primary_start(), simple_dialog_primary_end());
622 /* we have to terminate, as we cannot recover from the memory error */
623 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
625 main_window_update();
626 /* XXX - how to avoid a busy wait? */
634 /* Free the display name */
637 /* Cleanup and release all dfilter resources */
639 dfilter_free(dfcode);
642 /* We're done reading the file; destroy the progress bar if it was created. */
644 destroy_progress_dlg(progbar);
646 /* We're done reading sequentially through the file. */
647 cf->state = FILE_READ_DONE;
649 /* Close the sequential I/O side, to free up memory it requires. */
650 wtap_sequential_close(cf->wth);
652 /* Allow the protocol dissectors to free up memory that they
653 * don't need after the sequential run-through of the packets. */
654 postseq_cleanup_all_protocols();
656 /* compute the time it took to load the file */
657 compute_elapsed(&start_time);
659 /* Set the file encapsulation type now; we don't know what it is until
660 we've looked at all the packets, as we don't know until then whether
661 there's more than one type (and thus whether it's
662 WTAP_ENCAP_PER_PACKET). */
663 cf->lnk_t = wtap_file_encap(cf->wth);
665 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
668 new_packet_list_thaw();
670 cf_callback_invoke(cf_cb_file_reload_finished, cf);
672 cf_callback_invoke(cf_cb_file_read_finished, cf);
674 /* If we have any displayed packets to select, select the first of those
675 packets by making the first row the selected row. */
676 if (cf->first_displayed != 0){
677 new_packet_list_select_first_row();
681 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
682 "%sFile loading was cancelled!%s\n"
684 "The remaining packets in the file were discarded.\n"
686 "As a lot of packets from the original file will be missing,\n"
687 "remember to be careful when saving the current content to a file.\n",
688 simple_dialog_primary_start(), simple_dialog_primary_end());
689 return CF_READ_ERROR;
693 /* Put up a message box noting that the read failed somewhere along
694 the line. Don't throw out the stuff we managed to read, though,
698 case WTAP_ERR_UNSUPPORTED:
699 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
700 "The capture file contains record data that TShark doesn't support.\n(%s)",
703 errmsg = errmsg_errno;
706 case WTAP_ERR_UNSUPPORTED_ENCAP:
707 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
708 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
711 errmsg = errmsg_errno;
714 case WTAP_ERR_CANT_READ:
715 errmsg = "An attempt to read from the capture file failed for"
716 " some unknown reason.";
719 case WTAP_ERR_SHORT_READ:
720 errmsg = "The capture file appears to have been cut short"
721 " in the middle of a packet.";
724 case WTAP_ERR_BAD_FILE:
725 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
726 "The capture file appears to be damaged or corrupt.\n(%s)",
729 errmsg = errmsg_errno;
732 case WTAP_ERR_DECOMPRESS:
733 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
734 "The compressed capture file appears to be damaged or corrupt.\n"
737 errmsg = errmsg_errno;
741 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
742 "An error occurred while reading the"
743 " capture file: %s.", wtap_strerror(err));
744 errmsg = errmsg_errno;
747 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
748 return CF_READ_ERROR;
755 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
757 cf_status_t cf_status;
759 cf_status = cf_open(cf, fname, is_tempfile, err);
764 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
766 gint64 data_offset = 0;
768 volatile int newly_displayed_packets = 0;
770 gboolean filtering_tap_listeners;
774 /* Compile the current display filter.
775 * We assume this will not fail since cf->dfilter is only set in
776 * cf_filter IFF the filter was valid.
778 compiled = dfilter_compile(cf->dfilter, &dfcode);
779 g_assert(!cf->dfilter || (compiled && dfcode));
781 /* Do we have any tap listeners with filters? */
782 filtering_tap_listeners = have_filtering_tap_listeners();
784 /* Get the union of the flags for all tap listeners. */
785 tap_flags = union_of_tap_listener_flags();
789 new_packet_list_check_end();
790 /* Don't freeze/thaw the list when doing live capture */
791 /*new_packet_list_freeze();*/
793 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
795 while (to_read != 0) {
796 wtap_cleareof(cf->wth);
797 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
800 if (cf->state == FILE_READ_ABORTED) {
801 /* Well, the user decided to exit Wireshark. Break out of the
802 loop, and let the code below (which is called even if there
803 aren't any packets left to read) exit. */
807 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
808 data_offset) != -1) {
809 newly_displayed_packets++;
812 CATCH(OutOfMemoryError) {
815 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
816 "%sOut Of Memory!%s\n"
818 "Sorry, but Wireshark has to terminate now!\n"
820 "The capture file is not lost, it can be found at:\n"
823 "Some infos / workarounds can be found at:\n"
824 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
825 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
826 /* we have to terminate, as we cannot recover from the memory error */
827 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
829 main_window_update();
830 /* XXX - how to avoid a busy wait? */
833 /* Don't freeze/thaw the list when doing live capture */
834 /*new_packet_list_thaw();*/
835 return CF_READ_ABORTED;
841 /* Update the file encapsulation; it might have changed based on the
842 packets we've read. */
843 cf->lnk_t = wtap_file_encap(cf->wth);
845 /* Cleanup and release all dfilter resources */
847 dfilter_free(dfcode);
850 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
851 cf->count, cf->state, *err);*/
853 /* Don't freeze/thaw the list when doing live capture */
854 /*new_packet_list_thaw();*/
855 /* With the new packet list the first packet
856 * isn't automatically selected.
858 if(!cf->current_frame)
859 new_packet_list_select_first_row();
861 /* moving to the end of the packet list - if the user requested so and
862 we have some new packets. */
863 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
864 new_packet_list_moveto_end();
866 if (cf->state == FILE_READ_ABORTED) {
867 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
868 so that our caller can kill off the capture child process;
869 this will cause an EOF on the pipe from the child, so
870 "cf_finish_tail()" will be called, and it will clean up
872 return CF_READ_ABORTED;
873 } else if (*err != 0) {
874 /* We got an error reading the capture file.
875 XXX - pop up a dialog box instead? */
876 g_warning("Error \"%s\" while reading: \"%s\"\n",
877 wtap_strerror(*err), cf->filename);
879 return CF_READ_ERROR;
885 cf_fake_continue_tail(capture_file *cf) {
886 cf->state = FILE_READ_DONE;
890 cf_finish_tail(capture_file *cf, int *err)
895 gboolean filtering_tap_listeners;
899 /* Compile the current display filter.
900 * We assume this will not fail since cf->dfilter is only set in
901 * cf_filter IFF the filter was valid.
903 compiled = dfilter_compile(cf->dfilter, &dfcode);
904 g_assert(!cf->dfilter || (compiled && dfcode));
906 /* Do we have any tap listeners with filters? */
907 filtering_tap_listeners = have_filtering_tap_listeners();
909 /* Get the union of the flags for all tap listeners. */
910 tap_flags = union_of_tap_listener_flags();
912 if(cf->wth == NULL) {
914 return CF_READ_ERROR;
917 new_packet_list_check_end();
918 /* Don't freeze/thaw the list when doing live capture */
919 /*new_packet_list_freeze();*/
921 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
922 if (cf->state == FILE_READ_ABORTED) {
923 /* Well, the user decided to abort the read. Break out of the
924 loop, and let the code below (which is called even if there
925 aren't any packets left to read) exit. */
928 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
931 /* Cleanup and release all dfilter resources */
933 dfilter_free(dfcode);
936 /* Don't freeze/thaw the list when doing live capture */
937 /*new_packet_list_thaw();*/
939 if (cf->state == FILE_READ_ABORTED) {
940 /* Well, the user decided to abort the read. We're only called
941 when the child capture process closes the pipe to us (meaning
942 it's probably exited), so we can just close the capture
943 file; we return CF_READ_ABORTED so our caller can do whatever
944 is appropriate when that happens. */
946 return CF_READ_ABORTED;
949 if (auto_scroll_live && cf->count != 0)
950 new_packet_list_moveto_end();
952 /* We're done reading sequentially through the file. */
953 cf->state = FILE_READ_DONE;
955 /* We're done reading sequentially through the file; close the
956 sequential I/O side, to free up memory it requires. */
957 wtap_sequential_close(cf->wth);
959 /* Allow the protocol dissectors to free up memory that they
960 * don't need after the sequential run-through of the packets. */
961 postseq_cleanup_all_protocols();
963 /* Update the file encapsulation; it might have changed based on the
964 packets we've read. */
965 cf->lnk_t = wtap_file_encap(cf->wth);
968 /* We got an error reading the capture file.
969 XXX - pop up a dialog box? */
970 return CF_READ_ERROR;
975 #endif /* HAVE_LIBPCAP */
978 cf_get_display_name(capture_file *cf)
982 /* Return a name to use in displays */
983 if (!cf->is_tempfile) {
984 /* Get the last component of the file name, and use that. */
986 displayname = g_filename_display_basename(cf->filename);
988 displayname=g_strdup("(No file)");
991 /* The file we read is a temporary file from a live capture or
992 a merge operation; we don't mention its name, but, if it's
993 from a capture, give the source of the capture. */
995 displayname = g_strdup(cf->source);
997 displayname = g_strdup("(Untitled)");
1003 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1009 cf->source = g_strdup(source);
1011 cf->source = g_strdup("");
1015 const gchar *cf_get_tempfile_source(capture_file *cf) {
1023 /* XXX - use a macro instead? */
1025 cf_get_packet_count(capture_file *cf)
1030 /* XXX - use a macro instead? */
1032 cf_set_packet_count(capture_file *cf, int packet_count)
1034 cf->count = packet_count;
1037 /* XXX - use a macro instead? */
1039 cf_is_tempfile(capture_file *cf)
1041 return cf->is_tempfile;
1044 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1046 cf->is_tempfile = is_tempfile;
1050 /* XXX - use a macro instead? */
1051 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1053 cf->drops_known = drops_known;
1056 /* XXX - use a macro instead? */
1057 void cf_set_drops(capture_file *cf, guint32 drops)
1062 /* XXX - use a macro instead? */
1063 gboolean cf_get_drops_known(capture_file *cf)
1065 return cf->drops_known;
1068 /* XXX - use a macro instead? */
1069 guint32 cf_get_drops(capture_file *cf)
1074 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1076 cf->rfcode = rfcode;
1080 find_and_mark_frame_depended_upon(gpointer data, gpointer user_data)
1082 frame_data *dependent_fd;
1083 guint32 dependent_frame = GPOINTER_TO_UINT(data);
1084 capture_file *cf = (capture_file *)user_data;
1086 dependent_fd = frame_data_sequence_find(cf->frames, dependent_frame);
1087 dependent_fd->flags.dependent_of_displayed = 1;
1091 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1092 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1094 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1096 gboolean add_to_packet_list)
1098 gboolean create_proto_tree = FALSE;
1103 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1105 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1106 &first_ts, &prev_dis_ts, &prev_cap_ts);
1109 + we have a display filter and are re-applying it;
1110 + we have tap listeners with filters;
1111 + we have tap listeners that require a protocol tree;
1113 allocate a protocol tree root node, so that we'll construct
1114 a protocol tree against which a filter expression can be
1116 if ((dfcode != NULL && refilter) ||
1117 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1118 create_proto_tree = TRUE;
1120 /* Dissect the frame. */
1121 epan_dissect_init(&edt, create_proto_tree, FALSE);
1123 if (dfcode != NULL && refilter) {
1124 epan_dissect_prime_dfilter(&edt, dfcode);
1127 tap_queue_init(&edt);
1128 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1129 tap_push_tapped_queue(&edt);
1131 /* If we have a display filter, apply it if we're refiltering, otherwise
1132 leave the "passed_dfilter" flag alone.
1134 If we don't have a display filter, set "passed_dfilter" to 1. */
1135 if (dfcode != NULL) {
1137 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1139 if (fdata->flags.passed_dfilter) {
1140 /* This frame passed the display filter but it may depend on other
1141 * (potentially not displayed) frames. Find those frames and mark them
1144 g_slist_foreach(edt.pi.dependent_frames, find_and_mark_frame_depended_upon, cf);
1148 fdata->flags.passed_dfilter = 1;
1150 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1151 cf->displayed_count++;
1153 if (add_to_packet_list) {
1154 /* We fill the needed columns from new_packet_list */
1155 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1158 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1160 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1162 /* If we haven't yet seen the first frame, this is it.
1164 XXX - we must do this before we add the row to the display,
1165 as, if the display's GtkCList's selection mode is
1166 GTK_SELECTION_BROWSE, when the first entry is added to it,
1167 "cf_select_packet()" will be called, and it will fetch the row
1168 data for the 0th row, and will get a null pointer rather than
1169 "fdata", as "gtk_clist_append()" won't yet have returned and
1170 thus "gtk_clist_set_row_data()" won't yet have been called.
1172 We thus need to leave behind bread crumbs so that
1173 "cf_select_packet()" can find this frame. See the comment
1174 in "cf_select_packet()". */
1175 if (cf->first_displayed == 0)
1176 cf->first_displayed = fdata->num;
1178 /* This is the last frame we've seen so far. */
1179 cf->last_displayed = fdata->num;
1182 epan_dissect_cleanup(&edt);
1186 /* read in a new packet */
1187 /* returns the row of the new packet in the packet list or -1 if not displayed */
1189 read_packet(capture_file *cf, dfilter_t *dfcode,
1190 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1192 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1193 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1194 const guchar *buf = wtap_buf_ptr(cf->wth);
1201 /* The frame number of this packet is one more than the count of
1202 frames in this packet. */
1203 framenum = cf->count + 1;
1205 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1210 epan_dissect_init(&edt, TRUE, FALSE);
1211 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1212 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1213 passed = dfilter_apply_edt(cf->rfcode, &edt);
1214 epan_dissect_cleanup(&edt);
1218 /* This does a shallow copy of fdlocal, which is good enough. */
1219 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1222 cf->f_datalen = offset + fdlocal.cap_len;
1224 if (!cf->redissecting) {
1225 row = add_packet_to_packet_list(fdata, cf, dfcode,
1226 filtering_tap_listeners, tap_flags,
1227 pseudo_header, buf, TRUE, TRUE);
1235 cf_merge_files(char **out_filenamep, int in_file_count,
1236 char *const *in_filenames, int file_type, gboolean do_append)
1238 merge_in_file_t *in_files, *in_file;
1243 int open_err, read_err, write_err, close_err;
1247 char errmsg_errno[1024+1];
1249 gboolean got_read_error = FALSE, got_write_error = FALSE;
1251 progdlg_t *progbar = NULL;
1253 gint64 f_len, file_pos;
1255 GTimeVal start_time;
1256 gchar status_str[100];
1257 gint64 progbar_nextstep;
1258 gint64 progbar_quantum;
1260 /* open the input files */
1261 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1262 &open_err, &err_info, &err_fileno)) {
1264 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1269 if (*out_filenamep != NULL) {
1270 out_filename = *out_filenamep;
1271 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1275 out_fd = create_tempfile(&tmpname, "wireshark");
1278 out_filename = g_strdup(tmpname);
1279 *out_filenamep = out_filename;
1283 merge_close_in_files(in_file_count, in_files);
1285 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1289 pdh = wtap_dump_fdopen(out_fd, file_type,
1290 merge_select_frame_type(in_file_count, in_files),
1291 merge_max_snapshot_length(in_file_count, in_files),
1292 FALSE /* compressed */, &open_err);
1295 merge_close_in_files(in_file_count, in_files);
1297 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1302 /* Get the sum of the sizes of all the files. */
1304 for (i = 0; i < in_file_count; i++)
1305 f_len += in_files[i].size;
1307 /* Update the progress bar when it gets to this value. */
1308 progbar_nextstep = 0;
1309 /* When we reach the value that triggers a progress bar update,
1310 bump that value by this amount. */
1311 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1312 /* Progress so far. */
1316 g_get_current_time(&start_time);
1318 /* do the merge (or append) */
1321 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1324 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1326 if (in_file == NULL) {
1331 if (read_err != 0) {
1332 /* I/O error reading from in_file */
1333 got_read_error = TRUE;
1337 /* Get the sum of the data offsets in all of the files. */
1339 for (i = 0; i < in_file_count; i++)
1340 data_offset += in_files[i].data_offset;
1342 /* Create the progress bar if necessary.
1343 We check on every iteration of the loop, so that it takes no
1344 longer than the standard time to create it (otherwise, for a
1345 large file, we might take considerably longer than that standard
1346 time in order to get to the next progress bar step). */
1347 if (progbar == NULL) {
1348 progbar = delayed_create_progress_dlg("Merging", "files",
1349 FALSE, &stop_flag, &start_time, progbar_val);
1352 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1353 when we update it, we have to run the GTK+ main loop to get it
1354 to repaint what's pending, and doing so may involve an "ioctl()"
1355 to see if there's any pending input from an X server, and doing
1356 that for every packet can be costly, especially on a big file. */
1357 if (data_offset >= progbar_nextstep) {
1358 /* Get the sum of the seek positions in all of the files. */
1360 for (i = 0; i < in_file_count; i++)
1361 file_pos += wtap_read_so_far(in_files[i].wth);
1362 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1363 if (progbar_val > 1.0f) {
1364 /* Some file probably grew while we were reading it.
1365 That "shouldn't happen", so we'll just clip the progress
1369 if (progbar != NULL) {
1370 g_snprintf(status_str, sizeof(status_str),
1371 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1372 file_pos / 1024, f_len / 1024);
1373 update_progress_dlg(progbar, progbar_val, status_str);
1375 progbar_nextstep += progbar_quantum;
1379 /* Well, the user decided to abort the merge. */
1383 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1384 wtap_buf_ptr(in_file->wth), &write_err)) {
1385 got_write_error = TRUE;
1390 /* We're done merging the files; destroy the progress bar if it was created. */
1391 if (progbar != NULL)
1392 destroy_progress_dlg(progbar);
1394 merge_close_in_files(in_file_count, in_files);
1395 if (!got_read_error && !got_write_error) {
1396 if (!wtap_dump_close(pdh, &write_err))
1397 got_write_error = TRUE;
1399 wtap_dump_close(pdh, &close_err);
1401 if (got_read_error) {
1403 * Find the file on which we got the error, and report the error.
1405 for (i = 0; i < in_file_count; i++) {
1406 if (in_files[i].state == GOT_ERROR) {
1407 /* Put up a message box noting that a read failed somewhere along
1411 case WTAP_ERR_UNSUPPORTED_ENCAP:
1412 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1413 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1416 errmsg = errmsg_errno;
1419 case WTAP_ERR_CANT_READ:
1420 errmsg = "An attempt to read from the capture file %s failed for"
1421 " some unknown reason.";
1424 case WTAP_ERR_SHORT_READ:
1425 errmsg = "The capture file %s appears to have been cut short"
1426 " in the middle of a packet.";
1429 case WTAP_ERR_BAD_FILE:
1430 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1431 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1434 errmsg = errmsg_errno;
1437 case WTAP_ERR_DECOMPRESS:
1438 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1439 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1442 errmsg = errmsg_errno;
1446 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1447 "An error occurred while reading the"
1448 " capture file %%s: %s.", wtap_strerror(read_err));
1449 errmsg = errmsg_errno;
1452 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1457 if (got_write_error) {
1458 /* Put up an alert box for the write error. */
1459 if (write_err < 0) {
1460 /* Wiretap error. */
1461 switch (write_err) {
1463 case WTAP_ERR_UNSUPPORTED_ENCAP:
1465 * This is a problem with the particular frame we're writing;
1466 * note that, and give the frame number.
1468 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1469 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1470 in_file->packet_num, in_file->filename,
1471 wtap_file_type_string(file_type));
1475 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1476 "An error occurred while writing to the file \"%s\": %s.",
1477 out_filename, wtap_strerror(write_err));
1482 write_failure_alert_box(out_filename, write_err);
1486 if (got_read_error || got_write_error || stop_flag) {
1487 /* Callers aren't expected to treat an error or an explicit abort
1488 differently - we put up error dialogs ourselves, so they don't
1496 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1498 const char *filter_new = dftext ? dftext : "";
1499 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1501 GTimeVal start_time;
1503 /* if new filter equals old one, do nothing unless told to do so */
1504 if (!force && strcmp(filter_new, filter_old) == 0) {
1510 if (dftext == NULL) {
1511 /* The new filter is an empty filter (i.e., display all packets).
1512 * so leave dfcode==NULL
1516 * We have a filter; make a copy of it (as we'll be saving it),
1517 * and try to compile it.
1519 dftext = g_strdup(dftext);
1520 if (!dfilter_compile(dftext, &dfcode)) {
1521 /* The attempt failed; report an error. */
1522 gchar *safe_dftext = simple_dialog_format_message(dftext);
1523 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1525 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1528 "The following display filter isn't a valid display filter:\n%s\n"
1529 "See the help for a description of the display filter syntax.",
1530 simple_dialog_primary_start(), safe_dfilter_error_msg,
1531 simple_dialog_primary_end(), safe_dftext);
1532 g_free(safe_dfilter_error_msg);
1533 g_free(safe_dftext);
1539 if (dfcode == NULL) {
1540 /* Yes - free the filter text, and set it to null. */
1546 /* We have a valid filter. Replace the current filter. */
1547 g_free(cf->dfilter);
1548 cf->dfilter = dftext;
1549 g_get_current_time(&start_time);
1552 /* Now rescan the packet list, applying the new filter, but not
1553 throwing away information constructed on a previous pass. */
1554 if (dftext == NULL) {
1555 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1557 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1560 /* Cleanup and release all dfilter resources */
1561 dfilter_free(dfcode);
1567 cf_reftime_packets(capture_file *cf)
1570 ref_time_packets(cf);
1574 cf_redissect_packets(capture_file *cf)
1576 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1580 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1581 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1585 char errmsg_errno[1024+1];
1587 #ifdef WANT_PACKET_EDITOR
1588 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1589 if (G_UNLIKELY(fdata->file_off == -1)) {
1590 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1593 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "fdata->file_off == -1, but can't find modified frame!");
1597 *pseudo_header = frame->ph;
1598 memcpy(pd, frame->pd, fdata->cap_len);
1603 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1604 fdata->cap_len, &err, &err_info)) {
1607 case WTAP_ERR_UNSUPPORTED_ENCAP:
1608 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1609 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1614 case WTAP_ERR_BAD_FILE:
1615 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1616 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1617 wtap_strerror(err), err_info);
1622 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1623 "An error occurred while reading from the file \"%%s\": %s.",
1624 wtap_strerror(err));
1627 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1634 cf_read_frame(capture_file *cf, frame_data *fdata)
1636 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1639 /* Rescan the list of packets, reconstructing the CList.
1641 "action" describes why we're doing this; it's used in the progress
1644 "action_item" describes what we're doing; it's used in the progress
1647 "refilter" is TRUE if we need to re-evaluate the filter expression.
1649 "redissect" is TRUE if we need to make the dissectors reconstruct
1650 any state information they have (because a preference that affects
1651 some dissector has changed, meaning some dissector might construct
1652 its state differently from the way it was constructed the last time). */
1654 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1655 gboolean refilter, gboolean redissect)
1657 /* Rescan packets new packet list */
1660 progdlg_t *progbar = NULL;
1663 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1664 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1665 gboolean selected_frame_seen;
1667 GTimeVal start_time;
1668 gchar status_str[100];
1669 int progbar_nextstep;
1670 int progbar_quantum;
1672 gboolean filtering_tap_listeners;
1674 gboolean add_to_packet_list = FALSE;
1677 /* Compile the current display filter.
1678 * We assume this will not fail since cf->dfilter is only set in
1679 * cf_filter IFF the filter was valid.
1681 compiled = dfilter_compile(cf->dfilter, &dfcode);
1682 g_assert(!cf->dfilter || (compiled && dfcode));
1684 /* Do we have any tap listeners with filters? */
1685 filtering_tap_listeners = have_filtering_tap_listeners();
1687 /* Get the union of the flags for all tap listeners. */
1688 tap_flags = union_of_tap_listener_flags();
1690 reset_tap_listeners();
1691 /* Which frame, if any, is the currently selected frame?
1692 XXX - should the selected frame or the focus frame be the "current"
1693 frame, that frame being the one from which "Find Frame" searches
1695 selected_frame = cf->current_frame;
1697 /* Mark frame num as not found */
1698 selected_frame_num = -1;
1700 /* Freeze the packet list while we redo it, so we don't get any
1701 screen updates while it happens. */
1702 new_packet_list_freeze();
1705 /* We need to re-initialize all the state information that protocols
1706 keep, because some preference that controls a dissector has changed,
1707 which might cause the state information to be constructed differently
1708 by that dissector. */
1710 /* We might receive new packets while redissecting, and we don't
1711 want to dissect those before their time. */
1712 cf->redissecting = TRUE;
1714 /* Cleanup all data structures used for dissection. */
1715 cleanup_dissection();
1716 /* Initialize all data structures used for dissection. */
1719 /* We need to redissect the packets so we have to discard our old
1720 * packet list store. */
1721 new_packet_list_clear();
1722 add_to_packet_list = TRUE;
1725 /* We don't yet know which will be the first and last frames displayed. */
1726 cf->first_displayed = 0;
1727 cf->last_displayed = 0;
1729 /* We currently don't display any packets */
1730 cf->displayed_count = 0;
1732 /* Iterate through the list of frames. Call a routine for each frame
1733 to check whether it should be displayed and, if so, add it to
1734 the display list. */
1735 nstime_set_unset(&first_ts);
1736 nstime_set_unset(&prev_dis_ts);
1737 nstime_set_unset(&prev_cap_ts);
1740 /* Update the progress bar when it gets to this value. */
1741 progbar_nextstep = 0;
1742 /* When we reach the value that triggers a progress bar update,
1743 bump that value by this amount. */
1744 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1745 /* Count of packets at which we've looked. */
1747 /* Progress so far. */
1751 g_get_current_time(&start_time);
1753 /* no previous row yet */
1754 prev_frame_num = -1;
1757 preceding_frame_num = -1;
1758 preceding_frame = NULL;
1759 following_frame_num = -1;
1760 following_frame = NULL;
1762 selected_frame_seen = FALSE;
1764 for (framenum = 1; framenum <= cf->count; framenum++) {
1765 fdata = frame_data_sequence_find(cf->frames, framenum);
1767 /* Create the progress bar if necessary.
1768 We check on every iteration of the loop, so that it takes no
1769 longer than the standard time to create it (otherwise, for a
1770 large file, we might take considerably longer than that standard
1771 time in order to get to the next progress bar step). */
1772 if (progbar == NULL)
1773 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1774 &stop_flag, &start_time,
1777 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1778 when we update it, we have to run the GTK+ main loop to get it
1779 to repaint what's pending, and doing so may involve an "ioctl()"
1780 to see if there's any pending input from an X server, and doing
1781 that for every packet can be costly, especially on a big file. */
1782 if (count >= progbar_nextstep) {
1783 /* let's not divide by zero. I should never be started
1784 * with count == 0, so let's assert that
1786 g_assert(cf->count > 0);
1787 progbar_val = (gfloat) count / cf->count;
1789 if (progbar != NULL) {
1790 g_snprintf(status_str, sizeof(status_str),
1791 "%4u of %u frames", count, cf->count);
1792 update_progress_dlg(progbar, progbar_val, status_str);
1795 progbar_nextstep += progbar_quantum;
1799 /* Well, the user decided to abort the filtering. Just stop.
1801 XXX - go back to the previous filter? Users probably just
1802 want not to wait for a filtering operation to finish;
1803 unless we cancel by having no filter, reverting to the
1804 previous filter will probably be even more expensive than
1805 continuing the filtering, as it involves going back to the
1806 beginning and filtering, and even with no filter we currently
1807 have to re-generate the entire clist, which is also expensive.
1809 I'm not sure what Network Monitor does, but it doesn't appear
1810 to give you an unfiltered display if you cancel. */
1817 /* Since all state for the frame was destroyed, mark the frame
1818 * as not visited, free the GSList referring to the state
1819 * data (the per-frame data itself was freed by
1820 * "init_dissection()"), and null out the GSList pointer. */
1821 fdata->flags.visited = 0;
1822 frame_data_cleanup(fdata);
1825 if (redissect || refilter) {
1826 /* If we're redissecting or refiltering then any frame dependencies
1827 * from the previous dissection/filtering are no longer valid.
1829 fdata->flags.dependent_of_displayed = 0;
1832 if (!cf_read_frame(cf, fdata))
1833 break; /* error reading the frame */
1835 /* If the previous frame is displayed, and we haven't yet seen the
1836 selected frame, remember that frame - it's the closest one we've
1837 yet seen before the selected frame. */
1838 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1839 preceding_frame_num = prev_frame_num;
1840 preceding_frame = prev_frame;
1842 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1843 tap_flags, &cf->pseudo_header, cf->pd,
1845 add_to_packet_list);
1847 /* If this frame is displayed, and this is the first frame we've
1848 seen displayed after the selected frame, remember this frame -
1849 it's the closest one we've yet seen at or after the selected
1851 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1852 following_frame_num = fdata->num;
1853 following_frame = fdata;
1855 if (fdata == selected_frame) {
1856 selected_frame_seen = TRUE;
1857 if (fdata->flags.passed_dfilter)
1858 selected_frame_num = fdata->num;
1861 /* Remember this frame - it'll be the previous frame
1862 on the next pass through the loop. */
1863 prev_frame_num = fdata->num;
1867 /* We are done redissecting the packet list. */
1868 cf->redissecting = FALSE;
1871 /* Clear out what remains of the visited flags and per-frame data
1874 XXX - that may cause various forms of bogosity when dissecting
1875 these frames, as they won't have been seen by this sequential
1876 pass, but the only alternative I see is to keep scanning them
1877 even though the user requested that the scan stop, and that
1878 would leave the user stuck with an Wireshark grinding on
1879 until it finishes. Should we just stick them with that? */
1880 for (; framenum <= cf->count; framenum++) {
1881 fdata = frame_data_sequence_find(cf->frames, framenum);
1882 fdata->flags.visited = 0;
1883 frame_data_cleanup(fdata);
1887 /* We're done filtering the packets; destroy the progress bar if it
1889 if (progbar != NULL)
1890 destroy_progress_dlg(progbar);
1892 /* Unfreeze the packet list. */
1893 if (!add_to_packet_list)
1894 new_packet_list_recreate_visible_rows();
1896 /* Compute the time it took to filter the file */
1897 compute_elapsed(&start_time);
1899 new_packet_list_thaw();
1901 if (selected_frame_num == -1) {
1902 /* The selected frame didn't pass the filter. */
1903 if (selected_frame == NULL) {
1904 /* That's because there *was* no selected frame. Make the first
1905 displayed frame the current frame. */
1906 selected_frame_num = 0;
1908 /* Find the nearest displayed frame to the selected frame (whether
1909 it's before or after that frame) and make that the current frame.
1910 If the next and previous displayed frames are equidistant from the
1911 selected frame, choose the next one. */
1912 g_assert(following_frame == NULL ||
1913 following_frame->num >= selected_frame->num);
1914 g_assert(preceding_frame == NULL ||
1915 preceding_frame->num <= selected_frame->num);
1916 if (following_frame == NULL) {
1917 /* No frame after the selected frame passed the filter, so we
1918 have to select the last displayed frame before the selected
1920 selected_frame_num = preceding_frame_num;
1921 selected_frame = preceding_frame;
1922 } else if (preceding_frame == NULL) {
1923 /* No frame before the selected frame passed the filter, so we
1924 have to select the first displayed frame after the selected
1926 selected_frame_num = following_frame_num;
1927 selected_frame = following_frame;
1929 /* Frames before and after the selected frame passed the filter, so
1930 we'll select the previous frame */
1931 selected_frame_num = preceding_frame_num;
1932 selected_frame = preceding_frame;
1937 if (selected_frame_num == -1) {
1938 /* There are no frames displayed at all. */
1939 cf_unselect_packet(cf);
1941 /* Either the frame that was selected passed the filter, or we've
1942 found the nearest displayed frame to that frame. Select it, make
1943 it the focus row, and make it visible. */
1944 /* Set to invalid to force update of packet list and packet details */
1945 cf->current_row = -1;
1946 if (selected_frame_num == 0) {
1947 new_packet_list_select_first_row();
1949 if (!new_packet_list_select_row_from_data(selected_frame)) {
1950 /* We didn't find a row corresponding to this frame.
1951 This means that the frame isn't being displayed currently,
1952 so we can't select it. */
1953 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1954 "%sEnd of capture exceeded!%s\n\n"
1955 "The capture file is probably not fully dissected.",
1956 simple_dialog_primary_start(), simple_dialog_primary_end());
1961 /* Cleanup and release all dfilter resources */
1962 dfilter_free(dfcode);
1967 * Scan trough all frame data and recalculate the ref time
1968 * without rereading the file.
1969 * XXX - do we need a progres bar or is this fast enough?
1972 ref_time_packets(capture_file *cf)
1977 nstime_set_unset(&first_ts);
1978 nstime_set_unset(&prev_dis_ts);
1981 for (framenum = 1; framenum <= cf->count; framenum++) {
1982 fdata = frame_data_sequence_find(cf->frames, framenum);
1984 /* just add some value here until we know if it is being displayed or not */
1985 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1991 /* If we don't have the time stamp of the first packet in the
1992 capture, it's because this is the first packet. Save the time
1993 stamp of this packet as the time stamp of the first packet. */
1994 if (nstime_is_unset(&first_ts)) {
1995 first_ts = fdata->abs_ts;
1997 /* if this frames is marked as a reference time frame, reset
1998 firstsec and firstusec to this frame */
1999 if(fdata->flags.ref_time){
2000 first_ts = fdata->abs_ts;
2003 /* If we don't have the time stamp of the previous displayed packet,
2004 it's because this is the first displayed packet. Save the time
2005 stamp of this packet as the time stamp of the previous displayed
2007 if (nstime_is_unset(&prev_dis_ts)) {
2008 prev_dis_ts = fdata->abs_ts;
2011 /* Get the time elapsed between the first packet and this packet. */
2012 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2014 /* If it's greater than the current elapsed time, set the elapsed time
2015 to it (we check for "greater than" so as not to be confused by
2016 time moving backwards). */
2017 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2018 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2019 cf->elapsed_time = fdata->rel_ts;
2022 /* If this frame is displayed, get the time elapsed between the
2023 previous displayed packet and this packet. */
2024 if( fdata->flags.passed_dfilter ) {
2025 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2026 prev_dis_ts = fdata->abs_ts;
2032 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2033 /* This frame either passed the display filter list or is marked as
2034 a time reference frame. All time reference frames are displayed
2035 even if they dont pass the display filter */
2036 if(fdata->flags.ref_time){
2037 /* if this was a TIME REF frame we should reset the cum_bytes field */
2038 cum_bytes = fdata->pkt_len;
2039 fdata->cum_bytes = cum_bytes;
2041 /* increase cum_bytes with this packets length */
2042 cum_bytes += fdata->pkt_len;
2055 process_specified_packets(capture_file *cf, packet_range_t *range,
2056 const char *string1, const char *string2, gboolean terminate_is_stop,
2057 gboolean (*callback)(capture_file *, frame_data *,
2058 union wtap_pseudo_header *, const guint8 *, void *),
2059 void *callback_args)
2063 union wtap_pseudo_header pseudo_header;
2064 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2065 psp_return_t ret = PSP_FINISHED;
2067 progdlg_t *progbar = NULL;
2070 gboolean progbar_stop_flag;
2071 GTimeVal progbar_start_time;
2072 gchar progbar_status_str[100];
2073 int progbar_nextstep;
2074 int progbar_quantum;
2075 range_process_e process_this;
2077 /* Update the progress bar when it gets to this value. */
2078 progbar_nextstep = 0;
2079 /* When we reach the value that triggers a progress bar update,
2080 bump that value by this amount. */
2081 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2082 /* Count of packets at which we've looked. */
2084 /* Progress so far. */
2087 progbar_stop_flag = FALSE;
2088 g_get_current_time(&progbar_start_time);
2091 packet_range_process_init(range);
2093 /* Iterate through all the packets, printing the packets that
2094 were selected by the current display filter. */
2095 for (framenum = 1; framenum <= cf->count; framenum++) {
2096 fdata = frame_data_sequence_find(cf->frames, framenum);
2098 /* Create the progress bar if necessary.
2099 We check on every iteration of the loop, so that it takes no
2100 longer than the standard time to create it (otherwise, for a
2101 large file, we might take considerably longer than that standard
2102 time in order to get to the next progress bar step). */
2103 if (progbar == NULL)
2104 progbar = delayed_create_progress_dlg(string1, string2,
2107 &progbar_start_time,
2110 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2111 when we update it, we have to run the GTK+ main loop to get it
2112 to repaint what's pending, and doing so may involve an "ioctl()"
2113 to see if there's any pending input from an X server, and doing
2114 that for every packet can be costly, especially on a big file. */
2115 if (progbar_count >= progbar_nextstep) {
2116 /* let's not divide by zero. I should never be started
2117 * with count == 0, so let's assert that
2119 g_assert(cf->count > 0);
2120 progbar_val = (gfloat) progbar_count / cf->count;
2122 if (progbar != NULL) {
2123 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2124 "%4u of %u packets", progbar_count, cf->count);
2125 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2128 progbar_nextstep += progbar_quantum;
2131 if (progbar_stop_flag) {
2132 /* Well, the user decided to abort the operation. Just stop,
2133 and arrange to return PSP_STOPPED to our caller, so they know
2134 it was stopped explicitly. */
2141 if (range != NULL) {
2142 /* do we have to process this packet? */
2143 process_this = packet_range_process_packet(range, fdata);
2144 if (process_this == range_process_next) {
2145 /* this packet uninteresting, continue with next one */
2147 } else if (process_this == range_processing_finished) {
2148 /* all interesting packets processed, stop the loop */
2153 /* Get the packet */
2154 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2155 /* Attempt to get the packet failed. */
2159 /* Process the packet */
2160 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2161 /* Callback failed. We assume it reported the error appropriately. */
2167 /* We're done printing the packets; destroy the progress bar if
2169 if (progbar != NULL)
2170 destroy_progress_dlg(progbar);
2176 gboolean construct_protocol_tree;
2178 } retap_callback_args_t;
2181 retap_packet(capture_file *cf _U_, frame_data *fdata,
2182 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2185 retap_callback_args_t *args = argsp;
2188 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2189 tap_queue_init(&edt);
2190 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2191 tap_push_tapped_queue(&edt);
2192 epan_dissect_cleanup(&edt);
2198 cf_retap_packets(capture_file *cf)
2200 packet_range_t range;
2201 retap_callback_args_t callback_args;
2202 gboolean filtering_tap_listeners;
2205 /* Do we have any tap listeners with filters? */
2206 filtering_tap_listeners = have_filtering_tap_listeners();
2208 tap_flags = union_of_tap_listener_flags();
2210 /* If any tap listeners have filters, or require the protocol tree,
2211 construct the protocol tree. */
2212 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2213 (tap_flags & TL_REQUIRES_PROTO_TREE);
2215 /* If any tap listeners require the columns, construct them. */
2216 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2218 /* Reset the tap listeners. */
2219 reset_tap_listeners();
2221 /* Iterate through the list of packets, dissecting all packets and
2222 re-running the taps. */
2223 packet_range_init(&range);
2224 packet_range_process_init(&range);
2225 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2226 "all packets", TRUE, retap_packet,
2229 /* Completed successfully. */
2233 /* Well, the user decided to abort the refiltering.
2234 Return CF_READ_ABORTED so our caller knows they did that. */
2235 return CF_READ_ABORTED;
2238 /* Error while retapping. */
2239 return CF_READ_ERROR;
2242 g_assert_not_reached();
2247 print_args_t *print_args;
2248 gboolean print_header_line;
2249 char *header_line_buf;
2250 int header_line_buf_len;
2251 gboolean print_formfeed;
2252 gboolean print_separator;
2256 } print_callback_args_t;
2259 print_packet(capture_file *cf, frame_data *fdata,
2260 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2263 print_callback_args_t *args = argsp;
2270 gboolean proto_tree_needed;
2271 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2272 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2274 /* Create the protocol tree, and make it visible, if we're printing
2275 the dissection or the hex data.
2276 XXX - do we need it if we're just printing the hex data? */
2278 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2279 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2281 /* Fill in the column information if we're printing the summary
2283 if (args->print_args->print_summary) {
2284 col_custom_prime_edt(&edt, &cf->cinfo);
2285 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2286 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2288 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2290 if (args->print_formfeed) {
2291 if (!new_page(args->print_args->stream))
2294 if (args->print_separator) {
2295 if (!print_line(args->print_args->stream, 0, ""))
2301 * We generate bookmarks, if the output format supports them.
2302 * The name is "__frameN__".
2304 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2306 if (args->print_args->print_summary) {
2307 if (args->print_header_line) {
2308 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2310 args->print_header_line = FALSE; /* we might not need to print any more */
2312 cp = &args->line_buf[0];
2314 for (i = 0; i < cf->cinfo.num_cols; i++) {
2315 /* Find the length of the string for this column. */
2316 column_len = (int) strlen(cf->cinfo.col_data[i]);
2317 if (args->col_widths[i] > column_len)
2318 column_len = args->col_widths[i];
2320 /* Make sure there's room in the line buffer for the column; if not,
2321 double its length. */
2322 line_len += column_len + 1; /* "+1" for space */
2323 if (line_len > args->line_buf_len) {
2324 cp_off = (int) (cp - args->line_buf);
2325 args->line_buf_len = 2 * line_len;
2326 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2327 cp = args->line_buf + cp_off;
2330 /* Right-justify the packet number column. */
2331 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2332 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2334 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2336 if (i != cf->cinfo.num_cols - 1)
2342 * Generate a bookmark, using the summary line as the title.
2344 if (!print_bookmark(args->print_args->stream, bookmark_name,
2348 if (!print_line(args->print_args->stream, 0, args->line_buf))
2352 * Generate a bookmark, using "Frame N" as the title, as we're not
2353 * printing the summary line.
2355 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2356 if (!print_bookmark(args->print_args->stream, bookmark_name,
2359 } /* if (print_summary) */
2361 if (args->print_args->print_dissections != print_dissections_none) {
2362 if (args->print_args->print_summary) {
2363 /* Separate the summary line from the tree with a blank line. */
2364 if (!print_line(args->print_args->stream, 0, ""))
2368 /* Print the information in that tree. */
2369 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2372 /* Print a blank line if we print anything after this (aka more than one packet). */
2373 args->print_separator = TRUE;
2375 /* Print a header line if we print any more packet summaries */
2376 args->print_header_line = TRUE;
2379 if (args->print_args->print_hex) {
2380 /* Print the full packet data as hex. */
2381 if (!print_hex_data(args->print_args->stream, &edt))
2384 /* Print a blank line if we print anything after this (aka more than one packet). */
2385 args->print_separator = TRUE;
2387 /* Print a header line if we print any more packet summaries */
2388 args->print_header_line = TRUE;
2389 } /* if (args->print_args->print_dissections != print_dissections_none) */
2391 epan_dissect_cleanup(&edt);
2393 /* do we want to have a formfeed between each packet from now on? */
2394 if(args->print_args->print_formfeed) {
2395 args->print_formfeed = TRUE;
2401 epan_dissect_cleanup(&edt);
2406 cf_print_packets(capture_file *cf, print_args_t *print_args)
2409 print_callback_args_t callback_args;
2417 callback_args.print_args = print_args;
2418 callback_args.print_header_line = TRUE;
2419 callback_args.header_line_buf = NULL;
2420 callback_args.header_line_buf_len = 256;
2421 callback_args.print_formfeed = FALSE;
2422 callback_args.print_separator = FALSE;
2423 callback_args.line_buf = NULL;
2424 callback_args.line_buf_len = 256;
2425 callback_args.col_widths = 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 widths for each of the columns - maximum of the
2438 width of the title and the width of the data - and construct
2439 a buffer with a line containing the column titles. */
2440 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2441 cp = &callback_args.header_line_buf[0];
2443 for (i = 0; i < cf->cinfo.num_cols; i++) {
2444 /* Don't pad the last column. */
2445 if (i == cf->cinfo.num_cols - 1)
2446 callback_args.col_widths[i] = 0;
2448 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2449 data_width = get_column_char_width(get_column_format(i));
2450 if (data_width > callback_args.col_widths[i])
2451 callback_args.col_widths[i] = data_width;
2454 /* Find the length of the string for this column. */
2455 column_len = (int) strlen(cf->cinfo.col_title[i]);
2456 if (callback_args.col_widths[i] > column_len)
2457 column_len = callback_args.col_widths[i];
2459 /* Make sure there's room in the line buffer for the column; if not,
2460 double its length. */
2461 line_len += column_len + 1; /* "+1" for space */
2462 if (line_len > callback_args.header_line_buf_len) {
2463 cp_off = (int) (cp - callback_args.header_line_buf);
2464 callback_args.header_line_buf_len = 2 * line_len;
2465 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2466 callback_args.header_line_buf_len + 1);
2467 cp = callback_args.header_line_buf + cp_off;
2470 /* Right-justify the packet number column. */
2471 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2472 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2474 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2476 if (i != cf->cinfo.num_cols - 1)
2481 /* Now start out the main line buffer with the same length as the
2482 header line buffer. */
2483 callback_args.line_buf_len = callback_args.header_line_buf_len;
2484 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2485 } /* if (print_summary) */
2487 /* Iterate through the list of packets, printing the packets we were
2489 ret = process_specified_packets(cf, &print_args->range, "Printing",
2490 "selected packets", TRUE, print_packet,
2493 g_free(callback_args.header_line_buf);
2494 g_free(callback_args.line_buf);
2495 g_free(callback_args.col_widths);
2500 /* Completed successfully. */
2504 /* Well, the user decided to abort the printing.
2506 XXX - note that what got generated before they did that
2507 will get printed if we're piping to a print program; we'd
2508 have to write to a file and then hand that to the print
2509 program to make it actually not print anything. */
2513 /* Error while printing.
2515 XXX - note that what got generated before they did that
2516 will get printed if we're piping to a print program; we'd
2517 have to write to a file and then hand that to the print
2518 program to make it actually not print anything. */
2519 destroy_print_stream(print_args->stream);
2520 return CF_PRINT_WRITE_ERROR;
2523 if (!print_finale(print_args->stream)) {
2524 destroy_print_stream(print_args->stream);
2525 return CF_PRINT_WRITE_ERROR;
2528 if (!destroy_print_stream(print_args->stream))
2529 return CF_PRINT_WRITE_ERROR;
2535 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2536 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2542 /* Create the protocol tree, but don't fill in the column information. */
2543 epan_dissect_init(&edt, TRUE, TRUE);
2544 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2546 /* Write out the information in that tree. */
2547 proto_tree_write_pdml(&edt, fh);
2549 epan_dissect_cleanup(&edt);
2555 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2560 fh = ws_fopen(print_args->file, "w");
2562 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2564 write_pdml_preamble(fh, cf->filename);
2567 return CF_PRINT_WRITE_ERROR;
2570 /* Iterate through the list of packets, printing the packets we were
2572 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2573 "selected packets", TRUE,
2574 write_pdml_packet, fh);
2579 /* Completed successfully. */
2583 /* Well, the user decided to abort the printing. */
2587 /* Error while printing. */
2589 return CF_PRINT_WRITE_ERROR;
2592 write_pdml_finale(fh);
2595 return CF_PRINT_WRITE_ERROR;
2598 /* XXX - check for an error */
2605 write_psml_packet(capture_file *cf, frame_data *fdata,
2606 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2611 gboolean proto_tree_needed;
2613 /* Fill in the column information, only create the protocol tree
2614 if having custom columns. */
2615 proto_tree_needed = have_custom_cols(&cf->cinfo);
2616 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2617 col_custom_prime_edt(&edt, &cf->cinfo);
2618 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2619 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2621 /* Write out the information in that tree. */
2622 proto_tree_write_psml(&edt, fh);
2624 epan_dissect_cleanup(&edt);
2630 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2635 fh = ws_fopen(print_args->file, "w");
2637 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2639 write_psml_preamble(fh);
2642 return CF_PRINT_WRITE_ERROR;
2645 /* Iterate through the list of packets, printing the packets we were
2647 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2648 "selected packets", TRUE,
2649 write_psml_packet, fh);
2654 /* Completed successfully. */
2658 /* Well, the user decided to abort the printing. */
2662 /* Error while printing. */
2664 return CF_PRINT_WRITE_ERROR;
2667 write_psml_finale(fh);
2670 return CF_PRINT_WRITE_ERROR;
2673 /* XXX - check for an error */
2680 write_csv_packet(capture_file *cf, frame_data *fdata,
2681 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2686 gboolean proto_tree_needed;
2688 /* Fill in the column information, only create the protocol tree
2689 if having custom columns. */
2690 proto_tree_needed = have_custom_cols(&cf->cinfo);
2691 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2692 col_custom_prime_edt(&edt, &cf->cinfo);
2693 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2694 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2696 /* Write out the information in that tree. */
2697 proto_tree_write_csv(&edt, fh);
2699 epan_dissect_cleanup(&edt);
2705 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2710 fh = ws_fopen(print_args->file, "w");
2712 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2714 write_csv_preamble(fh);
2717 return CF_PRINT_WRITE_ERROR;
2720 /* Iterate through the list of packets, printing the packets we were
2722 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2723 "selected packets", TRUE,
2724 write_csv_packet, fh);
2729 /* Completed successfully. */
2733 /* Well, the user decided to abort the printing. */
2737 /* Error while printing. */
2739 return CF_PRINT_WRITE_ERROR;
2742 write_csv_finale(fh);
2745 return CF_PRINT_WRITE_ERROR;
2748 /* XXX - check for an error */
2755 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2756 union wtap_pseudo_header *pseudo_header,
2757 const guint8 *pd, void *argsp)
2762 epan_dissect_init(&edt, TRUE, TRUE);
2763 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2764 proto_tree_write_carrays(fdata->num, fh, &edt);
2765 epan_dissect_cleanup(&edt);
2771 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2776 fh = ws_fopen(print_args->file, "w");
2779 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2781 write_carrays_preamble(fh);
2785 return CF_PRINT_WRITE_ERROR;
2788 /* Iterate through the list of packets, printing the packets we were
2790 ret = process_specified_packets(cf, &print_args->range,
2792 "selected packets", TRUE,
2793 write_carrays_packet, fh);
2796 /* Completed successfully. */
2799 /* Well, the user decided to abort the printing. */
2802 /* Error while printing. */
2804 return CF_PRINT_WRITE_ERROR;
2807 write_carrays_finale(fh);
2811 return CF_PRINT_WRITE_ERROR;
2819 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2820 search_direction dir)
2824 mdata.string = string;
2825 mdata.string_len = strlen(string);
2826 return find_packet(cf, match_protocol_tree, &mdata, dir);
2830 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2832 mdata->frame_matched = FALSE;
2833 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2834 mdata->string_len = strlen(mdata->string);
2836 /* Iterate through all the nodes looking for matching text */
2837 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2838 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2842 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2844 match_data *mdata = criterion;
2847 /* Load the frame's data. */
2848 if (!cf_read_frame(cf, fdata)) {
2849 /* Attempt to get the packet failed. */
2853 /* Construct the protocol tree, including the displayed text */
2854 epan_dissect_init(&edt, TRUE, TRUE);
2855 /* We don't need the column information */
2856 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2858 /* Iterate through all the nodes, seeing if they have text that matches. */
2860 mdata->frame_matched = FALSE;
2861 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2862 epan_dissect_cleanup(&edt);
2863 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2867 match_subtree_text(proto_node *node, gpointer data)
2869 match_data *mdata = (match_data *) data;
2870 const gchar *string = mdata->string;
2871 size_t string_len = mdata->string_len;
2872 capture_file *cf = mdata->cf;
2873 field_info *fi = PNODE_FINFO(node);
2874 gchar label_str[ITEM_LABEL_LENGTH];
2881 g_assert(fi && "dissection with an invisible proto tree?");
2883 if (mdata->frame_matched) {
2884 /* We already had a match; don't bother doing any more work. */
2888 /* Don't match invisible entries. */
2889 if (PROTO_ITEM_IS_HIDDEN(node))
2892 /* was a free format label produced? */
2894 label_ptr = fi->rep->representation;
2896 /* no, make a generic label */
2897 label_ptr = label_str;
2898 proto_item_fill_label(fi, label_str);
2901 /* Does that label match? */
2902 label_len = strlen(label_ptr);
2903 for (i = 0; i < label_len; i++) {
2904 c_char = label_ptr[i];
2906 c_char = toupper(c_char);
2907 if (c_char == string[c_match]) {
2909 if (c_match == string_len) {
2910 /* No need to look further; we have a match */
2911 mdata->frame_matched = TRUE;
2919 /* Recurse into the subtree, if it exists */
2920 if (node->first_child != NULL)
2921 proto_tree_children_foreach(node, match_subtree_text, mdata);
2925 cf_find_packet_summary_line(capture_file *cf, const char *string,
2926 search_direction dir)
2930 mdata.string = string;
2931 mdata.string_len = strlen(string);
2932 return find_packet(cf, match_summary_line, &mdata, dir);
2936 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2938 match_data *mdata = criterion;
2939 const gchar *string = mdata->string;
2940 size_t string_len = mdata->string_len;
2942 const char *info_column;
2943 size_t info_column_len;
2944 match_result result = MR_NOTMATCHED;
2950 /* Load the frame's data. */
2951 if (!cf_read_frame(cf, fdata)) {
2952 /* Attempt to get the packet failed. */
2956 /* Don't bother constructing the protocol tree */
2957 epan_dissect_init(&edt, FALSE, FALSE);
2958 /* Get the column information */
2959 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2961 /* Find the Info column */
2962 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2963 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2964 /* Found it. See if we match. */
2965 info_column = edt.pi.cinfo->col_data[colx];
2966 info_column_len = strlen(info_column);
2967 for (i = 0; i < info_column_len; i++) {
2968 c_char = info_column[i];
2970 c_char = toupper(c_char);
2971 if (c_char == string[c_match]) {
2973 if (c_match == string_len) {
2974 result = MR_MATCHED;
2983 epan_dissect_cleanup(&edt);
2990 } cbs_t; /* "Counted byte string" */
2993 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2994 search_direction dir)
2999 info.data_len = string_size;
3001 /* String or hex search? */
3003 /* String search - what type of string? */
3004 switch (cf->scs_type) {
3006 case SCS_ASCII_AND_UNICODE:
3007 return find_packet(cf, match_ascii_and_unicode, &info, dir);
3010 return find_packet(cf, match_ascii, &info, dir);
3013 return find_packet(cf, match_unicode, &info, dir);
3016 g_assert_not_reached();
3020 return find_packet(cf, match_binary, &info, dir);
3024 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3026 cbs_t *info = criterion;
3027 const guint8 *ascii_text = info->data;
3028 size_t textlen = info->data_len;
3029 match_result result;
3035 /* Load the frame's data. */
3036 if (!cf_read_frame(cf, fdata)) {
3037 /* Attempt to get the packet failed. */
3041 result = MR_NOTMATCHED;
3042 buf_len = fdata->pkt_len;
3044 while (i < buf_len) {
3047 c_char = toupper(c_char);
3048 if (c_char != '\0') {
3049 if (c_char == ascii_text[c_match]) {
3051 if (c_match == textlen) {
3052 result = MR_MATCHED;
3053 cf->search_pos = i; /* Save the position of the last character
3054 for highlighting the field. */
3059 g_assert(i>=c_match);
3060 i -= (guint32)c_match;
3070 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3072 cbs_t *info = criterion;
3073 const guint8 *ascii_text = info->data;
3074 size_t textlen = info->data_len;
3075 match_result result;
3081 /* Load the frame's data. */
3082 if (!cf_read_frame(cf, fdata)) {
3083 /* Attempt to get the packet failed. */
3087 result = MR_NOTMATCHED;
3088 buf_len = fdata->pkt_len;
3090 while (i < buf_len) {
3093 c_char = toupper(c_char);
3094 if (c_char == ascii_text[c_match]) {
3096 if (c_match == textlen) {
3097 result = MR_MATCHED;
3098 cf->search_pos = i; /* Save the position of the last character
3099 for highlighting the field. */
3104 g_assert(i>=c_match);
3105 i -= (guint32)c_match;
3115 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3117 cbs_t *info = criterion;
3118 const guint8 *ascii_text = info->data;
3119 size_t textlen = info->data_len;
3120 match_result result;
3126 /* Load the frame's data. */
3127 if (!cf_read_frame(cf, fdata)) {
3128 /* Attempt to get the packet failed. */
3132 result = MR_NOTMATCHED;
3133 buf_len = fdata->pkt_len;
3135 while (i < buf_len) {
3138 c_char = toupper(c_char);
3139 if (c_char == ascii_text[c_match]) {
3141 if (c_match == textlen) {
3142 result = MR_MATCHED;
3143 cf->search_pos = i; /* Save the position of the last character
3144 for highlighting the field. */
3150 g_assert(i>=(c_match*2));
3151 i -= (guint32)c_match*2;
3160 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3162 cbs_t *info = criterion;
3163 const guint8 *binary_data = info->data;
3164 size_t datalen = info->data_len;
3165 match_result result;
3170 /* Load the frame's data. */
3171 if (!cf_read_frame(cf, fdata)) {
3172 /* Attempt to get the packet failed. */
3176 result = MR_NOTMATCHED;
3177 buf_len = fdata->pkt_len;
3179 while (i < buf_len) {
3180 if (cf->pd[i] == binary_data[c_match]) {
3182 if (c_match == datalen) {
3183 result = MR_MATCHED;
3184 cf->search_pos = i; /* Save the position of the last character
3185 for highlighting the field. */
3190 g_assert(i>=c_match);
3191 i -= (guint32)c_match;
3200 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3201 search_direction dir)
3203 return find_packet(cf, match_dfilter, sfcode, dir);
3207 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3208 search_direction dir)
3213 if (!dfilter_compile(filter, &sfcode)) {
3215 * XXX - this shouldn't happen, as the filter string is machine
3220 if (sfcode == NULL) {
3222 * XXX - this shouldn't happen, as the filter string is machine
3227 result = find_packet(cf, match_dfilter, sfcode, dir);
3228 dfilter_free(sfcode);
3233 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3235 dfilter_t *sfcode = criterion;
3237 match_result result;
3239 /* Load the frame's data. */
3240 if (!cf_read_frame(cf, fdata)) {
3241 /* Attempt to get the packet failed. */
3245 epan_dissect_init(&edt, TRUE, FALSE);
3246 epan_dissect_prime_dfilter(&edt, sfcode);
3247 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3248 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3249 epan_dissect_cleanup(&edt);
3254 cf_find_packet_marked(capture_file *cf, search_direction dir)
3256 return find_packet(cf, match_marked, NULL, dir);
3260 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3262 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3266 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3268 return find_packet(cf, match_time_reference, NULL, dir);
3272 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3274 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3278 find_packet(capture_file *cf,
3279 match_result (*match_function)(capture_file *, frame_data *, void *),
3280 void *criterion, search_direction dir)
3282 frame_data *start_fd;
3285 frame_data *new_fd = NULL;
3286 progdlg_t *progbar = NULL;
3291 GTimeVal start_time;
3292 gchar status_str[100];
3293 int progbar_nextstep;
3294 int progbar_quantum;
3296 match_result result;
3298 start_fd = cf->current_frame;
3299 if (start_fd != NULL) {
3300 /* Iterate through the list of packets, starting at the packet we've
3301 picked, calling a routine to run the filter on the packet, see if
3302 it matches, and stop if so. */
3304 framenum = start_fd->num;
3306 /* Update the progress bar when it gets to this value. */
3307 progbar_nextstep = 0;
3308 /* When we reach the value that triggers a progress bar update,
3309 bump that value by this amount. */
3310 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3311 /* Progress so far. */
3315 g_get_current_time(&start_time);
3317 title = cf->sfilter?cf->sfilter:"";
3319 /* Create the progress bar if necessary.
3320 We check on every iteration of the loop, so that it takes no
3321 longer than the standard time to create it (otherwise, for a
3322 large file, we might take considerably longer than that standard
3323 time in order to get to the next progress bar step). */
3324 if (progbar == NULL)
3325 progbar = delayed_create_progress_dlg("Searching", title,
3326 FALSE, &stop_flag, &start_time, progbar_val);
3328 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3329 when we update it, we have to run the GTK+ main loop to get it
3330 to repaint what's pending, and doing so may involve an "ioctl()"
3331 to see if there's any pending input from an X server, and doing
3332 that for every packet can be costly, especially on a big file. */
3333 if (count >= progbar_nextstep) {
3334 /* let's not divide by zero. I should never be started
3335 * with count == 0, so let's assert that
3337 g_assert(cf->count > 0);
3339 progbar_val = (gfloat) count / cf->count;
3341 if (progbar != NULL) {
3342 g_snprintf(status_str, sizeof(status_str),
3343 "%4u of %u packets", count, cf->count);
3344 update_progress_dlg(progbar, progbar_val, status_str);
3347 progbar_nextstep += progbar_quantum;
3351 /* Well, the user decided to abort the search. Go back to the
3352 frame where we started. */
3357 /* Go past the current frame. */
3358 if (dir == SD_BACKWARD) {
3359 /* Go on to the previous frame. */
3360 if (framenum == 1) {
3362 * XXX - other apps have a bit more of a detailed message
3363 * for this, and instead of offering "OK" and "Cancel",
3364 * they offer things such as "Continue" and "Cancel";
3365 * we need an API for popping up alert boxes with
3366 * {Verb} and "Cancel".
3369 if (prefs.gui_find_wrap)
3371 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3372 framenum = cf->count; /* wrap around */
3376 statusbar_push_temporary_msg("Search reached the beginning.");
3377 framenum = start_fd->num; /* stay on previous packet */
3382 /* Go on to the next frame. */
3383 if (framenum == cf->count) {
3384 if (prefs.gui_find_wrap)
3386 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3387 framenum = 1; /* wrap around */
3391 statusbar_push_temporary_msg("Search reached the end.");
3392 framenum = start_fd->num; /* stay on previous packet */
3397 fdata = frame_data_sequence_find(cf->frames, framenum);
3401 /* Is this packet in the display? */
3402 if (fdata->flags.passed_dfilter) {
3403 /* Yes. Does it match the search criterion? */
3404 result = (*match_function)(cf, fdata, criterion);
3405 if (result == MR_ERROR) {
3406 /* Error; our caller has reported the error. Go back to the frame
3407 where we started. */
3410 } else if (result == MR_MATCHED) {
3411 /* Yes. Go to the new frame. */
3417 if (fdata == start_fd) {
3418 /* We're back to the frame we were on originally, and that frame
3419 doesn't match the search filter. The search failed. */
3424 /* We're done scanning the packets; destroy the progress bar if it
3426 if (progbar != NULL)
3427 destroy_progress_dlg(progbar);
3430 if (new_fd != NULL) {
3431 /* Find and select */
3432 cf->search_in_progress = TRUE;
3433 found = new_packet_list_select_row_from_data(new_fd);
3434 cf->search_in_progress = FALSE;
3435 cf->search_pos = 0; /* Reset the position */
3437 /* We didn't find a row corresponding to this frame.
3438 This means that the frame isn't being displayed currently,
3439 so we can't select it. */
3440 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3441 "%sEnd of capture exceeded!%s\n\n"
3442 "The capture file is probably not fully dissected.",
3443 simple_dialog_primary_start(), simple_dialog_primary_end());
3446 return TRUE; /* success */
3448 return FALSE; /* failure */
3452 cf_goto_frame(capture_file *cf, guint fnumber)
3456 fdata = frame_data_sequence_find(cf->frames, fnumber);
3458 if (fdata == NULL) {
3459 /* we didn't find a packet with that packet number */
3460 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3461 return FALSE; /* we failed to go to that packet */
3463 if (!fdata->flags.passed_dfilter) {
3464 /* that packet currently isn't displayed */
3465 /* XXX - add it to the set of displayed packets? */
3466 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3467 return FALSE; /* we failed to go to that packet */
3470 if (!new_packet_list_select_row_from_data(fdata)) {
3471 /* We didn't find a row corresponding to this frame.
3472 This means that the frame isn't being displayed currently,
3473 so we can't select it. */
3474 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3475 "%sEnd of capture exceeded!%s\n\n"
3476 "The capture file is probably not fully dissected.",
3477 simple_dialog_primary_start(), simple_dialog_primary_end());
3480 return TRUE; /* we got to that packet */
3484 cf_goto_top_frame(void)
3486 /* Find and select */
3487 new_packet_list_select_first_row();
3488 return TRUE; /* we got to that packet */
3492 cf_goto_bottom_frame(void)
3494 /* Find and select */
3495 new_packet_list_select_last_row();
3496 return TRUE; /* we got to that packet */
3500 * Go to frame specified by currently selected protocol tree item.
3503 cf_goto_framenum(capture_file *cf)
3505 header_field_info *hfinfo;
3508 if (cf->finfo_selected) {
3509 hfinfo = cf->finfo_selected->hfinfo;
3511 if (hfinfo->type == FT_FRAMENUM) {
3512 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3514 return cf_goto_frame(cf, framenum);
3521 /* Select the packet on a given row. */
3523 cf_select_packet(capture_file *cf, int row)
3527 /* Get the frame data struct pointer for this frame */
3528 fdata = new_packet_list_get_row_data(row);
3530 if (fdata == NULL) {
3531 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3532 the first entry is added to it by "real_insert_row()", that row
3533 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3534 our version and the vanilla GTK+ version).
3536 This means that a "select-row" signal is emitted; this causes
3537 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3540 "cf_select_packet()" fetches, above, the data associated with the
3541 row that was selected; however, as "gtk_clist_append()", which
3542 called "real_insert_row()", hasn't yet returned, we haven't yet
3543 associated any data with that row, so we get back a null pointer.
3545 We can't assume that there's only one frame in the frame list,
3546 either, as we may be filtering the display.
3548 We therefore assume that, if "row" is 0, i.e. the first row
3549 is being selected, and "cf->first_displayed" equals
3550 "cf->last_displayed", i.e. there's only one frame being
3551 displayed, that frame is the frame we want.
3553 This means we have to set "cf->first_displayed" and
3554 "cf->last_displayed" before adding the row to the
3555 GtkCList; see the comment in "add_packet_to_packet_list()". */
3557 if (row == 0 && cf->first_displayed == cf->last_displayed)
3558 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3561 /* If fdata _still_ isn't set simply give up. */
3562 if (fdata == NULL) {
3566 /* Get the data in that frame. */
3567 if (!cf_read_frame (cf, fdata)) {
3571 /* Record that this frame is the current frame. */
3572 cf->current_frame = fdata;
3573 cf->current_row = row;
3575 /* Create the logical protocol tree. */
3576 if (cf->edt != NULL)
3577 epan_dissect_free(cf->edt);
3579 /* We don't need the columns here. */
3580 cf->edt = epan_dissect_new(TRUE, TRUE);
3582 tap_build_interesting(cf->edt);
3583 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3586 dfilter_macro_build_ftv_cache(cf->edt->tree);
3588 cf_callback_invoke(cf_cb_packet_selected, cf);
3591 /* Unselect the selected packet, if any. */
3593 cf_unselect_packet(capture_file *cf)
3595 /* Destroy the epan_dissect_t for the unselected packet. */
3596 if (cf->edt != NULL) {
3597 epan_dissect_free(cf->edt);
3601 /* No packet is selected. */
3602 cf->current_frame = NULL;
3603 cf->current_row = 0;
3605 cf_callback_invoke(cf_cb_packet_unselected, cf);
3607 /* No protocol tree means no selected field. */
3608 cf_unselect_field(cf);
3611 /* Unset the selected protocol tree field, if any. */
3613 cf_unselect_field(capture_file *cf)
3615 cf->finfo_selected = NULL;
3617 cf_callback_invoke(cf_cb_field_unselected, cf);
3621 * Mark a particular frame.
3624 cf_mark_frame(capture_file *cf, frame_data *frame)
3626 if (! frame->flags.marked) {
3627 frame->flags.marked = TRUE;
3628 if (cf->count > cf->marked_count)
3634 * Unmark a particular frame.
3637 cf_unmark_frame(capture_file *cf, frame_data *frame)
3639 if (frame->flags.marked) {
3640 frame->flags.marked = FALSE;
3641 if (cf->marked_count > 0)
3647 * Ignore a particular frame.
3650 cf_ignore_frame(capture_file *cf, frame_data *frame)
3652 if (! frame->flags.ignored) {
3653 frame->flags.ignored = TRUE;
3654 if (cf->count > cf->ignored_count)
3655 cf->ignored_count++;
3660 * Un-ignore a particular frame.
3663 cf_unignore_frame(capture_file *cf, frame_data *frame)
3665 if (frame->flags.ignored) {
3666 frame->flags.ignored = FALSE;
3667 if (cf->ignored_count > 0)
3668 cf->ignored_count--;
3673 * Read the comment in SHB block
3677 cf_read_shb_comment(capture_file *cf)
3679 wtapng_section_t *shb_inf;
3680 const gchar *temp_str;
3682 /* Get info from SHB */
3683 shb_inf = wtap_file_get_shb_info(cf->wth);
3686 temp_str = shb_inf->opt_comment;
3694 cf_update_capture_comment(capture_file *cf, gchar *comment)
3696 wtapng_section_t *shb_inf;
3698 /* Get info from SHB */
3699 shb_inf = wtap_file_get_shb_info(cf->wth);
3701 /* See if the comment has changed or not */
3702 if (shb_inf && shb_inf->opt_comment) {
3703 if (strcmp(shb_inf->opt_comment, comment) == 0) {
3712 /* The comment has changed, let's update it */
3713 wtap_write_shb_comment(cf->wth, comment);
3714 /* Mark the file as having unsaved changes */
3715 cf->unsaved_changes = TRUE;
3722 } save_callback_args_t;
3725 * Save a capture to a file, in a particular format, saving either
3726 * all packets, all currently-displayed packets, or all marked packets.
3728 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3729 * up a message box for the failure.
3732 save_packet(capture_file *cf _U_, frame_data *fdata,
3733 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3736 save_callback_args_t *args = argsp;
3737 struct wtap_pkthdr hdr;
3740 /* init the wtap header for saving */
3741 /* XXX - these are the only flags that correspond to data that we have
3742 in the frame_data structure and that matter on a per-packet basis.
3744 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
3745 and "on the wire" lengths, or it doesn't.
3747 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
3750 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
3751 from the packet flags. */
3752 hdr.presence_flags = 0;
3753 if (fdata->flags.has_ts)
3754 hdr.presence_flags |= WTAP_HAS_TS;
3755 if (fdata->flags.has_ts)
3756 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
3757 hdr.ts.secs = fdata->abs_ts.secs;
3758 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3759 hdr.caplen = fdata->cap_len;
3760 hdr.len = fdata->pkt_len;
3761 hdr.pkt_encap = fdata->lnk_t;
3763 hdr.interface_id = fdata->interface_id; /* identifier of the interface. */
3765 hdr.opt_comment = fdata->opt_comment; /* NULL if not available */
3768 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
3770 /* and save the packet */
3771 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3773 /* Wiretap error. */
3776 case WTAP_ERR_UNSUPPORTED_ENCAP:
3778 * This is a problem with the particular frame we're writing;
3779 * note that, and give the frame number.
3781 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3782 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3783 fdata->num, wtap_file_type_string(args->file_type));
3787 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3788 "An error occurred while writing to the file \"%s\": %s.",
3789 args->fname, wtap_strerror(err));
3794 write_failure_alert_box(args->fname, err);
3802 * Can this capture file be saved in any format except by copying the raw data?
3805 cf_can_save_as(capture_file *cf)
3809 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3810 /* To save a file with Wiretap, Wiretap has to handle that format,
3811 and its code to handle that format must be able to write a file
3812 with this file's encapsulation type. */
3813 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3814 /* OK, we can write it out in this type. */
3819 /* No, we couldn't save it in any format. */
3824 cf_save_packets(capture_file *cf, const char *fname, guint save_format,
3825 gboolean compressed, gboolean dont_reopen)
3827 gchar *fname_new = NULL;
3831 save_callback_args_t callback_args;
3833 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3835 if (save_format == cf->cd_t && compressed == cf->iscompressed
3836 && !cf->unsaved_changes) {
3837 /* We're saving in the format it's already in, and there are no
3838 changes we have in memory that aren't saved to the file, so
3839 we can just move or copy the raw data. */
3841 if (cf->is_tempfile) {
3842 /* The file being saved is a temporary file from a live
3843 capture, so it doesn't need to stay around under that name;
3844 first, try renaming the capture buffer file to the new name.
3845 This acts as a "safe save", in that, if the file already
3846 exists, the existing file will be removed only if the rename
3849 Sadly, on Windows, as we have the current capture file
3850 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
3851 (to cause the rename to remove an existing target), as
3852 done by ws_stdio_rename() (ws_rename() is #defined to
3853 be ws_stdio_rename() on Windows) will fail.
3855 According to the MSDN documentation for CreateFile(), if,
3856 when we open a capture file, we were to directly do a CreateFile(),
3857 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
3858 convert it to a file descriptor with _open_osfhandle(),
3859 that would allow the file to be renamed out from under us.
3861 However, that doesn't work in practice. Perhaps the problem
3862 is that the process doing the rename is the process that
3863 has the file open. */
3865 if (ws_rename(cf->filename, fname) == 0) {
3866 /* That succeeded - there's no need to copy the source file. */
3869 if (errno == EXDEV) {
3870 /* They're on different file systems, so we have to copy the
3874 /* The rename failed, but not because they're on different
3875 file systems - put up an error message. (Or should we
3876 just punt and try to copy? The only reason why I'd
3877 expect the rename to fail and the copy to succeed would
3878 be if we didn't have permission to remove the file from
3879 the temporary directory, and that might be fixable - but
3880 is it worth requiring the user to go off and fix it?) */
3881 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3882 file_rename_error_message(errno), fname);
3890 /* It's a permanent file, so we should copy it, and not remove the
3896 /* Copy the file, if we haven't moved it. If we're overwriting
3897 an existing file, we do it with a "safe save", by writing
3898 to a new file and, if the write succeeds, renaming the
3899 new file on top of the old file. */
3900 if (file_exists(fname)) {
3901 fname_new = g_strdup_printf("%s~", fname);
3902 if (!copy_file_binary_mode(cf->filename, fname_new))
3905 if (!copy_file_binary_mode(cf->filename, fname))
3910 /* Either we're saving in a different format or we're saving changes,
3911 such as added, modified, or removed comments, that haven't yet
3912 been written to the underlying file; we can't do that by copying
3913 or moving the capture file, we have to do it by writing the packets
3916 wtapng_section_t *shb_hdr = NULL;
3917 wtapng_iface_descriptions_t *idb_inf = NULL;
3919 shb_hdr = wtap_file_get_shb_info(cf->wth);
3920 idb_inf = wtap_file_get_idb_info(cf->wth);
3922 if (file_exists(fname)) {
3923 /* We're overwriting an existing file; write out to a new file,
3924 and, if that succeeds, rename the new file on top of the
3925 old file. That makes this a "safe save", so that we don't
3926 lose the old file if we have a problem writing out the new
3927 file. (If the existing file is the current capture file,
3928 we *HAVE* to do that, otherwise we're overwriting the file
3929 from which we're reading the packets that we're writing!) */
3930 fname_new = g_strdup_printf("%s~", fname);
3931 pdh = wtap_dump_open_ng(fname_new, save_format, cf->lnk_t, cf->snap,
3932 compressed, shb_hdr, idb_inf, &err);
3934 pdh = wtap_dump_open_ng(fname, save_format, cf->lnk_t, cf->snap,
3935 compressed, shb_hdr, idb_inf, &err);
3941 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3945 /* Add address resolution */
3946 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
3948 /* Iterate through the list of packets, processing all the packets. */
3949 callback_args.pdh = pdh;
3950 callback_args.fname = fname;
3951 callback_args.file_type = save_format;
3952 switch (process_specified_packets(cf, NULL, "Saving", "packets",
3953 TRUE, save_packet, &callback_args)) {
3956 /* Completed successfully. */
3960 /* The user decided to abort the saving.
3961 If we're writing to a temporary file, remove it.
3962 XXX - should we do so even if we're not writing to a
3964 wtap_dump_close(pdh, &err);
3965 if (fname_new != NULL)
3966 ws_unlink(fname_new);
3967 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
3968 return CF_WRITE_ABORTED;
3971 /* Error while saving.
3972 If we're writing to a temporary file, remove it. */
3973 if (fname_new != NULL)
3974 ws_unlink(fname_new);
3975 wtap_dump_close(pdh, &err);
3979 if (!wtap_dump_close(pdh, &err)) {
3980 cf_close_failure_alert_box(fname, err);
3985 if (fname_new != NULL) {
3986 /* We wrote out to fname_new, and should rename it on top of
3987 fname. fname_new is now closed, so that should be possible even
3988 on Windows. However, on Windows, we first need to close whatever
3989 file descriptors we have open for fname. */
3991 wtap_fdclose(cf->wth);
3993 /* Now do the rename. */
3994 if (ws_rename(fname_new, fname) == -1) {
3995 /* Well, the rename failed. */
3996 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3997 file_rename_error_message(errno), fname);
3999 /* Attempt to reopen the random file descriptor using the
4000 current file's filename. (At this point, the sequential
4001 file descriptor is closed.) */
4002 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4003 /* Oh, well, we're screwed. */
4004 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4005 file_open_error_message(err, FALSE), cf->filename);
4012 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4013 cf->unsaved_changes = FALSE;
4016 /* Open and read the file we saved to.
4018 XXX - this is somewhat of a waste; we already have the
4019 packets, all this gets us is updated file type information
4020 (which we could just stuff into "cf"), and having the new
4021 file be the one we have opened and from which we're reading
4022 the data, and it means we have to spend time opening and
4023 reading the file, which could be a significant amount of
4024 time if the file is large.
4026 If the capture-file-writing code were to return the
4027 seek offset of each packet it writes, we could save that
4028 in the frame_data structure for the frame, and just open
4029 the file without reading it again. */
4031 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4032 /* XXX - report errors if this fails?
4033 What should we return if it fails or is aborted? */
4035 switch (cf_read(cf, TRUE)) {
4039 /* Just because we got an error, that doesn't mean we were unable
4040 to read any of the file; we handle what we could get from the
4044 case CF_READ_ABORTED:
4045 /* The user bailed out of re-reading the capture file; the
4046 capture file has been closed - just return (without
4047 changing any menu settings; "cf_close()" set them
4048 correctly for the "no capture file open" state). */
4056 if (fname_new != NULL) {
4057 /* We were trying to write to a temporary file; get rid of it if it
4058 exists. (We don't care whether this fails, as, if it fails,
4059 there's not much we can do about it. I guess if it failed for
4060 a reason other than "it doesn't exist", we could report an
4061 error, so the user knows there's a junk file that they might
4062 want to clean up.) */
4063 ws_unlink(fname_new);
4066 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4067 return CF_WRITE_ERROR;
4071 cf_export_specified_packets(capture_file *cf, const char *fname,
4072 packet_range_t *range, guint save_format,
4073 gboolean compressed)
4075 gchar *fname_new = NULL;
4078 save_callback_args_t callback_args;
4079 wtapng_section_t *shb_hdr = NULL;
4080 wtapng_iface_descriptions_t *idb_inf = NULL;
4082 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4084 packet_range_process_init(range);
4086 /* We're writing out specified packets from the specified capture
4087 file to another file. Even if all captured packets are to be
4088 written, don't special-case the operation - read each packet
4089 and then write it out if it's one of the specified ones. */
4091 shb_hdr = wtap_file_get_shb_info(cf->wth);
4092 idb_inf = wtap_file_get_idb_info(cf->wth);
4094 if (file_exists(fname)) {
4095 /* We're overwriting an existing file; write out to a new file,
4096 and, if that succeeds, rename the new file on top of the
4097 old file. That makes this a "safe save", so that we don't
4098 lose the old file if we have a problem writing out the new
4099 file. (If the existing file is the current capture file,
4100 we *HAVE* to do that, otherwise we're overwriting the file
4101 from which we're reading the packets that we're writing!) */
4102 fname_new = g_strdup_printf("%s~", fname);
4103 pdh = wtap_dump_open_ng(fname_new, save_format, cf->lnk_t, cf->snap,
4104 compressed, shb_hdr, idb_inf, &err);
4106 pdh = wtap_dump_open_ng(fname, save_format, cf->lnk_t, cf->snap,
4107 compressed, shb_hdr, idb_inf, &err);
4113 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4117 /* Add address resolution */
4118 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4120 /* Iterate through the list of packets, processing the packets we were
4123 XXX - we've already called "packet_range_process_init(range)", but
4124 "process_specified_packets()" will do it again. Fortunately,
4125 that's harmless in this case, as we haven't done anything to
4126 "range" since we initialized it. */
4127 callback_args.pdh = pdh;
4128 callback_args.fname = fname;
4129 callback_args.file_type = save_format;
4130 switch (process_specified_packets(cf, range, "Writing", "specified packets",
4131 TRUE, save_packet, &callback_args)) {
4134 /* Completed successfully. */
4138 /* The user decided to abort the saving.
4139 If we're writing to a temporary file, remove it.
4140 XXX - should we do so even if we're not writing to a
4142 wtap_dump_close(pdh, &err);
4143 if (fname_new != NULL)
4144 ws_unlink(fname_new);
4145 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4146 return CF_WRITE_ABORTED;
4150 /* Error while saving.
4151 If we're writing to a temporary file, remove it. */
4152 if (fname_new != NULL)
4153 ws_unlink(fname_new);
4154 wtap_dump_close(pdh, &err);
4158 if (!wtap_dump_close(pdh, &err)) {
4159 cf_close_failure_alert_box(fname, err);
4163 if (fname_new != NULL) {
4164 /* We wrote out to fname_new, and should rename it on top of
4165 fname; fname is now closed, so that should be possible even
4166 on Windows. Do the rename. */
4167 if (ws_rename(fname_new, fname) == -1) {
4168 /* Well, the rename failed. */
4169 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4170 file_rename_error_message(errno), fname);
4175 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
4179 if (fname_new != NULL) {
4180 /* We were trying to write to a temporary file; get rid of it if it
4181 exists. (We don't care whether this fails, as, if it fails,
4182 there's not much we can do about it. I guess if it failed for
4183 a reason other than "it doesn't exist", we could report an
4184 error, so the user knows there's a junk file that they might
4185 want to clean up.) */
4186 ws_unlink(fname_new);
4189 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
4190 return CF_WRITE_ERROR;
4194 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4195 gboolean for_writing, int file_type)
4198 /* Wiretap error. */
4201 case WTAP_ERR_NOT_REGULAR_FILE:
4202 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4203 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4207 case WTAP_ERR_RANDOM_OPEN_PIPE:
4208 /* Seen only when opening a capture file for reading. */
4209 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4210 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
4211 "To capture from a pipe or FIFO use wireshark -i -",
4215 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4216 /* Seen only when opening a capture file for reading. */
4217 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4218 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4222 case WTAP_ERR_UNSUPPORTED:
4223 /* Seen only when opening a capture file for reading. */
4224 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4225 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4227 filename, err_info);
4231 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4232 /* Seen only when opening a capture file for writing. */
4233 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4234 "The file \"%s\" is a pipe, and %s capture files can't be "
4235 "written to a pipe.",
4236 filename, wtap_file_type_string(file_type));
4239 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4240 /* Seen only when opening a capture file for writing. */
4241 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4242 "Wireshark doesn't support writing capture files in that format.");
4245 case WTAP_ERR_UNSUPPORTED_ENCAP:
4247 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4248 "Wireshark can't save this capture in that format.");
4250 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4251 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4253 filename, err_info);
4258 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4260 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4261 "Wireshark can't save this capture in that format.");
4263 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4264 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4269 case WTAP_ERR_BAD_FILE:
4270 /* Seen only when opening a capture file for reading. */
4271 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4272 "The file \"%s\" appears to be damaged or corrupt.\n"
4274 filename, err_info);
4278 case WTAP_ERR_CANT_OPEN:
4280 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4281 "The file \"%s\" could not be created for some unknown reason.",
4284 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4285 "The file \"%s\" could not be opened for some unknown reason.",
4290 case WTAP_ERR_SHORT_READ:
4291 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4292 "The file \"%s\" appears to have been cut short"
4293 " in the middle of a packet or other data.",
4297 case WTAP_ERR_SHORT_WRITE:
4298 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4299 "A full header couldn't be written to the file \"%s\".",
4303 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4304 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4305 "This file type cannot be written as a compressed file.");
4308 case WTAP_ERR_DECOMPRESS:
4309 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4310 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
4311 "(%s)", filename, err_info);
4316 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4317 "The file \"%s\" could not be %s: %s.",
4319 for_writing ? "created" : "opened",
4320 wtap_strerror(err));
4325 open_failure_alert_box(filename, err, for_writing);
4330 * XXX - whether we mention the source pathname, the target pathname,
4331 * or both depends on the error and on what we find if we look for
4332 * one or both of them.
4335 file_rename_error_message(int err)
4338 static char errmsg_errno[1024+1];
4343 /* XXX - should check whether the source exists and, if not,
4344 report it as the problem and, if so, report the destination
4346 errmsg = "The path to the file \"%s\" doesn't exist.";
4350 /* XXX - if we're doing a rename after a safe save, we should
4351 probably say something else. */
4352 errmsg = "You don't have permission to move the capture file to \"%s\".";
4356 /* XXX - this should probably mention both the source and destination
4358 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4359 "The file \"%%s\" could not be moved: %s.",
4360 wtap_strerror(err));
4361 errmsg = errmsg_errno;
4367 /* Check for write errors - if the file is being written to an NFS server,
4368 a write error may not show up until the file is closed, as NFS clients
4369 might not send writes to the server until the "write()" call finishes,
4370 so that the write may fail on the server but the "write()" may succeed. */
4372 cf_close_failure_alert_box(const char *filename, int err)
4375 /* Wiretap error. */
4378 case WTAP_ERR_CANT_CLOSE:
4379 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4380 "The file \"%s\" couldn't be closed for some unknown reason.",
4384 case WTAP_ERR_SHORT_WRITE:
4385 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4386 "Not all the packets could be written to the file \"%s\".",
4391 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4392 "An error occurred while closing the file \"%s\": %s.",
4393 filename, wtap_strerror(err));
4398 We assume that a close error from the OS is really a write error. */
4399 write_failure_alert_box(filename, err);
4403 /* Reload the current capture file. */
4405 cf_reload(capture_file *cf) {
4407 gboolean is_tempfile;
4410 /* If the file could be opened, "cf_open()" calls "cf_close()"
4411 to get rid of state for the old capture file before filling in state
4412 for the new capture file. "cf_close()" will remove the file if
4413 it's a temporary file; we don't want that to happen (for one thing,
4414 it'd prevent subsequent reopens from working). Remember whether it's
4415 a temporary file, mark it as not being a temporary file, and then
4416 reopen it as the type of file it was.
4418 Also, "cf_close()" will free "cf->filename", so we must make
4419 a copy of it first. */
4420 filename = g_strdup(cf->filename);
4421 is_tempfile = cf->is_tempfile;
4422 cf->is_tempfile = FALSE;
4423 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4424 switch (cf_read(cf, TRUE)) {
4428 /* Just because we got an error, that doesn't mean we were unable
4429 to read any of the file; we handle what we could get from the
4433 case CF_READ_ABORTED:
4434 /* The user bailed out of re-reading the capture file; the
4435 capture file has been closed - just free the capture file name
4436 string and return (without changing the last containing
4442 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4443 Instead, the file was left open, so we should restore "cf->is_tempfile"
4446 XXX - change the menu? Presumably "cf_open()" will do that;
4447 make sure it does! */
4448 cf->is_tempfile = is_tempfile;
4450 /* "cf_open()" made a copy of the file name we handed it, so
4451 we should free up our copy. */
4461 * indent-tabs-mode: nil
4464 * ex: set shiftwidth=2 tabstop=8 expandtab:
4465 * :indentSize=2:tabSize=8:noTabs=true: