6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
61 #include "alert_box.h"
62 #include "simple_dialog.h"
63 #include "main_statusbar.h"
64 #include "progress_dlg.h"
66 #include <epan/prefs.h>
67 #include <epan/dfilter/dfilter.h>
68 #include <epan/epan_dissect.h>
70 #include <epan/dissectors/packet-data.h>
71 #include <epan/dissectors/packet-ber.h>
72 #include <epan/timestamp.h>
73 #include <epan/dfilter/dfilter-macro.h>
74 #include <wsutil/file_util.h>
75 #include <epan/strutil.h>
76 #include <epan/addr_resolv.h>
79 gboolean auto_scroll_live;
82 static guint32 cum_bytes;
83 static nstime_t first_ts;
84 static nstime_t prev_dis_ts;
85 static nstime_t prev_cap_ts;
87 static gulong computed_elapsed;
89 static void cf_reset_state(capture_file *cf);
91 static int read_packet(capture_file *cf, dfilter_t *dfcode,
92 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
94 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
95 gboolean refilter, gboolean redissect);
102 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
104 static void match_subtree_text(proto_node *node, gpointer data);
105 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
107 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii(capture_file *cf, frame_data *fdata,
111 static match_result match_unicode(capture_file *cf, frame_data *fdata,
113 static match_result match_binary(capture_file *cf, frame_data *fdata,
115 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
117 static match_result match_marked(capture_file *cf, frame_data *fdata,
119 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
121 static gboolean find_packet(capture_file *cf,
122 match_result (*match_function)(capture_file *, frame_data *, void *),
123 void *criterion, search_direction dir);
125 static void cf_open_failure_alert_box(const char *filename, int err,
126 gchar *err_info, gboolean for_writing,
128 static const char *file_rename_error_message(int err);
129 static void cf_write_failure_alert_box(const char *filename, int err);
130 static void cf_close_failure_alert_box(const char *filename, int err);
131 static void ref_time_packets(capture_file *cf);
132 /* Update the progress bar this many times when reading a file. */
133 #define N_PROGBAR_UPDATES 100
134 /* We read around 200k/100ms don't update the progress bar more often than that */
135 #define MIN_QUANTUM 200000
136 #define MIN_NUMBER_OF_PACKET 1500
138 /* Number of "frame_data" structures per memory chunk.
139 XXX - is this the right number? */
140 #define FRAME_DATA_CHUNK_SIZE 1024
144 * We could probably use g_signal_...() instead of the callbacks below but that
145 * would require linking our CLI programs to libgobject and creating an object
146 * instance for the signals.
149 cf_callback_t cb_fct;
151 } cf_callback_data_t;
153 static GList *cf_callbacks = NULL;
156 cf_callback_invoke(int event, gpointer data)
158 cf_callback_data_t *cb;
159 GList *cb_item = cf_callbacks;
161 /* there should be at least one interested */
162 g_assert(cb_item != NULL);
164 while(cb_item != NULL) {
166 cb->cb_fct(event, data, cb->user_data);
167 cb_item = g_list_next(cb_item);
173 cf_callback_add(cf_callback_t func, gpointer user_data)
175 cf_callback_data_t *cb;
177 cb = g_malloc(sizeof(cf_callback_data_t));
179 cb->user_data = user_data;
181 cf_callbacks = g_list_append(cf_callbacks, cb);
185 cf_callback_remove(cf_callback_t func)
187 cf_callback_data_t *cb;
188 GList *cb_item = cf_callbacks;
190 while(cb_item != NULL) {
192 if(cb->cb_fct == func) {
193 cf_callbacks = g_list_remove(cf_callbacks, cb);
197 cb_item = g_list_next(cb_item);
200 g_assert_not_reached();
204 cf_timestamp_auto_precision(capture_file *cf)
207 int prec = timestamp_get_precision();
210 /* don't try to get the file's precision if none is opened */
211 if(cf->state == FILE_CLOSED) {
215 /* if we are in auto mode, set precision of current file */
216 if(prec == TS_PREC_AUTO ||
217 prec == TS_PREC_AUTO_SEC ||
218 prec == TS_PREC_AUTO_DSEC ||
219 prec == TS_PREC_AUTO_CSEC ||
220 prec == TS_PREC_AUTO_MSEC ||
221 prec == TS_PREC_AUTO_USEC ||
222 prec == TS_PREC_AUTO_NSEC)
224 switch(wtap_file_tsprecision(cf->wth)) {
225 case(WTAP_FILE_TSPREC_SEC):
226 timestamp_set_precision(TS_PREC_AUTO_SEC);
228 case(WTAP_FILE_TSPREC_DSEC):
229 timestamp_set_precision(TS_PREC_AUTO_DSEC);
231 case(WTAP_FILE_TSPREC_CSEC):
232 timestamp_set_precision(TS_PREC_AUTO_CSEC);
234 case(WTAP_FILE_TSPREC_MSEC):
235 timestamp_set_precision(TS_PREC_AUTO_MSEC);
237 case(WTAP_FILE_TSPREC_USEC):
238 timestamp_set_precision(TS_PREC_AUTO_USEC);
240 case(WTAP_FILE_TSPREC_NSEC):
241 timestamp_set_precision(TS_PREC_AUTO_NSEC);
244 g_assert_not_reached();
247 /* Set the column widths of those columns that show the time in
248 "command-line-specified" format. */
249 for (i = 0; i < cf->cinfo.num_cols; i++) {
250 if (col_has_time_fmt(&cf->cinfo, i)) {
251 new_packet_list_resize_column(i);
257 cf_get_computed_elapsed(void)
259 return computed_elapsed;
262 static void reset_elapsed(void)
264 computed_elapsed = 0;
267 static void compute_elapsed(GTimeVal *start_time)
272 g_get_current_time(&time_now);
274 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
275 time_now.tv_usec - start_time->tv_usec;
277 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
281 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
286 wth = wtap_open_offline(fname, err, &err_info, TRUE);
290 /* The open succeeded. Close whatever capture file we had open,
291 and fill in the information for this file. */
294 /* Cleanup all data structures used for dissection. */
295 cleanup_dissection();
296 /* Initialize all data structures used for dissection. */
299 /* We're about to start reading the file. */
300 cf->state = FILE_READ_IN_PROGRESS;
305 /* Set the file name because we need it to set the follow stream filter.
306 XXX - is that still true? We need it for other reasons, though,
308 cf->filename = g_strdup(fname);
310 /* Indicate whether it's a permanent or temporary file. */
311 cf->is_tempfile = is_tempfile;
313 /* If it's a temporary capture buffer file, mark it as not saved. */
314 cf->user_saved = !is_tempfile;
318 cf->cd_t = wtap_file_type(cf->wth);
320 cf->displayed_count = 0;
321 cf->marked_count = 0;
322 cf->ignored_count = 0;
323 cf->ref_time_count = 0;
324 cf->drops_known = FALSE;
326 cf->snap = wtap_snapshot_length(cf->wth);
328 /* Snapshot length not known. */
329 cf->has_snap = FALSE;
330 cf->snap = WTAP_MAX_PACKET_SIZE;
334 nstime_set_zero(&cf->elapsed_time);
335 nstime_set_unset(&first_ts);
336 nstime_set_unset(&prev_dis_ts);
337 nstime_set_unset(&prev_cap_ts);
340 #if GLIB_CHECK_VERSION(2,10,0)
342 /* memory chunks have been deprecated in favor of the slice allocator,
343 * which has been added in 2.10
345 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
347 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
349 g_assert(cf->plist_chunk);
352 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
353 cf_timestamp_auto_precision(cf);
355 new_packet_list_queue_draw();
356 fileset_file_opened(fname);
358 if(cf->cd_t == WTAP_FILE_BER) {
359 /* tell the BER dissector the file name */
360 ber_set_filename(cf->filename);
363 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
364 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
369 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
375 * Reset the state for the currently closed file, but don't do the
376 * UI callbacks; this is for use in "cf_open()", where we don't
377 * want the UI to go from "file open" to "file closed" back to
378 * "file open", we want it to go from "old file open" to "new file
379 * open and being read".
382 cf_reset_state(capture_file *cf)
384 /* Die if we're in the middle of reading a file. */
385 g_assert(cf->state != FILE_READ_IN_PROGRESS);
391 /* We have no file open... */
392 if (cf->filename != NULL) {
393 /* If it's a temporary file, remove it. */
395 ws_unlink(cf->filename);
396 g_free(cf->filename);
399 /* ...which means we have nothing to save. */
400 cf->user_saved = FALSE;
402 dfilter_free(cf->rfcode);
404 cap_file_free_frames(cf);
405 cf_unselect_packet(cf); /* nothing to select */
406 cf->first_displayed = 0;
407 cf->last_displayed = 0;
409 /* No frame selected, no field in that frame selected. */
410 cf->current_frame = 0;
412 cf->finfo_selected = NULL;
414 /* Clear the packet list. */
415 new_packet_list_freeze();
416 new_packet_list_clear();
417 new_packet_list_thaw();
420 nstime_set_zero(&cf->elapsed_time);
422 reset_tap_listeners();
424 /* We have no file open. */
425 cf->state = FILE_CLOSED;
427 fileset_file_closed();
430 /* Reset everything to a pristine state */
432 cf_close(capture_file *cf)
434 /* do GUI things even if file is already closed,
435 * e.g. to cleanup things if a capture couldn't be started */
436 cf_callback_invoke(cf_cb_file_closing, cf);
438 /* close things, if not already closed before */
439 if(cf->state != FILE_CLOSED) {
440 color_filters_cleanup();
442 cleanup_dissection();
445 cf_callback_invoke(cf_cb_file_closed, cf);
448 /* an out of memory exception occured, wait for a user button press to exit */
449 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
455 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
459 progbar_val = (gfloat) file_pos / (gfloat) size;
460 if (progbar_val > 1.0) {
462 /* The file probably grew while we were reading it.
463 * Update file size, and try again.
465 size = wtap_file_size(cf->wth, NULL);
467 /* Another possibility is that we're reading a compressed file and we've
468 * read more (uncompressed) data from the file than exists in the
469 * (compressed) file. So check how much data we've actually read.
471 * This is inside this "if val > 1.0" check to avoid the lseek() when
472 * reading uncompressed files. Testing has (thus far) shown no progress
473 * bar weirdness resulting from switching from the data offset (when
474 * reading the first part of the file) to the real file position.
476 file_pos = wtap_read_so_far(cf->wth, NULL);
479 progbar_val = (gfloat) file_pos / (gfloat) size;
481 /* If it's still > 1, either "wtap_file_size()" failed (in which
482 * case there's not much we can do about it), or the file
483 * *shrank* (in which case there's not much we can do about
484 * it); just clip the progress value at 1.0.
486 if (progbar_val > 1.0f)
490 g_snprintf(status_str, status_size,
491 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
492 file_pos / 1024, size / 1024);
498 cf_read(capture_file *cf, gboolean from_save)
502 const gchar *name_ptr;
504 char errmsg_errno[1024+1];
506 progdlg_t *volatile progbar = NULL;
508 volatile gint64 size;
509 volatile float progbar_val;
511 gchar status_str[100];
512 volatile gint64 progbar_nextstep;
513 volatile gint64 progbar_quantum;
515 gboolean filtering_tap_listeners;
517 volatile int count = 0;
519 volatile int displayed_once = 0;
523 /* Compile the current display filter.
524 * We assume this will not fail since cf->dfilter is only set in
525 * cf_filter IFF the filter was valid.
527 compiled = dfilter_compile(cf->dfilter, &dfcode);
528 g_assert(!cf->dfilter || (compiled && dfcode));
530 /* Do we have any tap listeners with filters? */
531 filtering_tap_listeners = have_filtering_tap_listeners();
533 /* Get the union of the flags for all tap listeners. */
534 tap_flags = union_of_tap_listener_flags();
536 reset_tap_listeners();
538 name_ptr = get_basename(cf->filename);
540 if (from_save == FALSE)
541 cf_callback_invoke(cf_cb_file_read_started, cf);
543 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
545 /* Find the size of the file. */
546 size = wtap_file_size(cf->wth, NULL);
548 /* Update the progress bar when it gets to this value. */
549 progbar_nextstep = 0;
550 /* When we reach the value that triggers a progress bar update,
551 bump that value by this amount. */
553 progbar_quantum = size/N_PROGBAR_UPDATES;
554 if (progbar_quantum < MIN_QUANTUM)
555 progbar_quantum = MIN_QUANTUM;
558 /* Progress so far. */
561 new_packet_list_freeze();
564 g_get_current_time(&start_time);
566 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
569 /* Create the progress bar if necessary.
570 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
572 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
573 progbar_val = calc_progbar_val(cf, size, data_offset, status_str, sizeof(status_str));
574 if (from_save == FALSE)
575 progbar = delayed_create_progress_dlg("Loading", name_ptr,
576 TRUE, &stop_flag, &start_time, progbar_val);
578 progbar = delayed_create_progress_dlg("Saving", name_ptr,
579 TRUE, &stop_flag, &start_time, progbar_val);
582 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
583 when we update it, we have to run the GTK+ main loop to get it
584 to repaint what's pending, and doing so may involve an "ioctl()"
585 to see if there's any pending input from an X server, and doing
586 that for every packet can be costly, especially on a big file. */
587 if (data_offset >= progbar_nextstep) {
588 if (progbar != NULL) {
589 progbar_val = calc_progbar_val(cf, size, data_offset, status_str, sizeof(status_str));
590 /* update the packet lists content on the first run or frequently on very large files */
591 /* (on smaller files the display update takes longer than reading the file) */
593 if (progbar_quantum > 500000 || displayed_once == 0) {
594 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
596 new_packet_list_thaw();
597 if (auto_scroll_live)
598 new_packet_list_moveto_end();
599 new_packet_list_freeze();
602 #endif /* HAVE_LIBPCAP */
603 update_progress_dlg(progbar, progbar_val, status_str);
605 progbar_nextstep += progbar_quantum;
610 /* Well, the user decided to abort the read. He/She will be warned and
611 it might be enough for him/her to work with the already loaded
613 This is especially true for very large capture files, where you don't
614 want to wait loading the whole file (which may last minutes or even
615 hours even on fast machines) just to see that it was the wrong file. */
619 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
621 CATCH(OutOfMemoryError) {
624 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
625 "%sOut Of Memory!%s\n"
627 "Sorry, but Wireshark has to terminate now!\n"
629 "Some infos / workarounds can be found at:\n"
630 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
631 simple_dialog_primary_start(), simple_dialog_primary_end());
632 /* we have to terminate, as we cannot recover from the memory error */
633 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
635 main_window_update();
636 /* XXX - how to avoid a busy wait? */
644 /* Cleanup and release all dfilter resources */
646 dfilter_free(dfcode);
649 /* We're done reading the file; destroy the progress bar if it was created. */
651 destroy_progress_dlg(progbar);
653 /* We're done reading sequentially through the file. */
654 cf->state = FILE_READ_DONE;
656 /* Close the sequential I/O side, to free up memory it requires. */
657 wtap_sequential_close(cf->wth);
659 /* Allow the protocol dissectors to free up memory that they
660 * don't need after the sequential run-through of the packets. */
661 postseq_cleanup_all_protocols();
663 /* compute the time it took to load the file */
664 compute_elapsed(&start_time);
666 /* Set the file encapsulation type now; we don't know what it is until
667 we've looked at all the packets, as we don't know until then whether
668 there's more than one type (and thus whether it's
669 WTAP_ENCAP_PER_PACKET). */
670 cf->lnk_t = wtap_file_encap(cf->wth);
672 cf->current_frame = cap_file_find_fdata(cf, cf->first_displayed);
675 new_packet_list_thaw();
676 if (from_save == FALSE)
677 cf_callback_invoke(cf_cb_file_read_finished, cf);
679 cf_callback_invoke(cf_cb_file_save_finished, cf);
681 /* If we have any displayed packets to select, select the first of those
682 packets by making the first row the selected row. */
683 if (cf->first_displayed != 0){
684 new_packet_list_select_first_row();
688 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
689 "%sFile loading was cancelled!%s\n"
691 "The remaining packets in the file were discarded.\n"
693 "As a lot of packets from the original file will be missing,\n"
694 "remember to be careful when saving the current content to a file.\n",
695 simple_dialog_primary_start(), simple_dialog_primary_end());
696 return CF_READ_ERROR;
700 /* Put up a message box noting that the read failed somewhere along
701 the line. Don't throw out the stuff we managed to read, though,
705 case WTAP_ERR_UNSUPPORTED_ENCAP:
706 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
707 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
710 errmsg = errmsg_errno;
713 case WTAP_ERR_CANT_READ:
714 errmsg = "An attempt to read from the capture file failed for"
715 " some unknown reason.";
718 case WTAP_ERR_SHORT_READ:
719 errmsg = "The capture file appears to have been cut short"
720 " in the middle of a packet.";
723 case WTAP_ERR_BAD_RECORD:
724 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
725 "The capture file appears to be damaged or corrupt.\n(%s)",
728 errmsg = errmsg_errno;
731 case WTAP_ERR_DECOMPRESS:
732 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
733 "The compressed capture file appears to be damaged or corrupt.\n"
736 errmsg = errmsg_errno;
740 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
741 "An error occurred while reading the"
742 " capture file: %s.", wtap_strerror(err));
743 errmsg = errmsg_errno;
746 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
747 return CF_READ_ERROR;
754 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
756 cf_status_t cf_status;
758 cf_status = cf_open(cf, fname, is_tempfile, err);
763 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
765 gint64 data_offset = 0;
767 volatile int newly_displayed_packets = 0;
769 gboolean filtering_tap_listeners;
773 /* Compile the current display filter.
774 * We assume this will not fail since cf->dfilter is only set in
775 * cf_filter IFF the filter was valid.
777 compiled = dfilter_compile(cf->dfilter, &dfcode);
778 g_assert(!cf->dfilter || (compiled && dfcode));
780 /* Do we have any tap listeners with filters? */
781 filtering_tap_listeners = have_filtering_tap_listeners();
783 /* Get the union of the flags for all tap listeners. */
784 tap_flags = union_of_tap_listener_flags();
788 new_packet_list_check_end();
789 /* Don't freeze/thaw the list when doing live capture */
790 /*new_packet_list_freeze();*/
792 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
794 while (to_read != 0) {
795 wtap_cleareof(cf->wth);
796 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
799 if (cf->state == FILE_READ_ABORTED) {
800 /* Well, the user decided to exit Wireshark. Break out of the
801 loop, and let the code below (which is called even if there
802 aren't any packets left to read) exit. */
806 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
807 data_offset) != -1) {
808 newly_displayed_packets++;
811 CATCH(OutOfMemoryError) {
814 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
815 "%sOut Of Memory!%s\n"
817 "Sorry, but Wireshark has to terminate now!\n"
819 "The capture file is not lost, it can be found at:\n"
822 "Some infos / workarounds can be found at:\n"
823 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
824 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
825 /* we have to terminate, as we cannot recover from the memory error */
826 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
828 main_window_update();
829 /* XXX - how to avoid a busy wait? */
832 /* Don't freeze/thaw the list when doing live capture */
833 /*new_packet_list_thaw();*/
834 return CF_READ_ABORTED;
840 /* Cleanup and release all dfilter resources */
842 dfilter_free(dfcode);
845 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
846 cf->count, cf->state, *err);*/
848 /* Don't freeze/thaw the list when doing live capture */
849 /*new_packet_list_thaw();*/
850 /* With the new packet list the first packet
851 * isn't automatically selected.
853 if(!cf->current_frame)
854 new_packet_list_select_first_row();
856 /* moving to the end of the packet list - if the user requested so and
857 we have some new packets. */
858 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
859 new_packet_list_moveto_end();
861 if (cf->state == FILE_READ_ABORTED) {
862 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
863 so that our caller can kill off the capture child process;
864 this will cause an EOF on the pipe from the child, so
865 "cf_finish_tail()" will be called, and it will clean up
867 return CF_READ_ABORTED;
868 } else if (*err != 0) {
869 /* We got an error reading the capture file.
870 XXX - pop up a dialog box instead? */
871 g_warning("Error \"%s\" while reading: \"%s\"\n",
872 wtap_strerror(*err), cf->filename);
874 return CF_READ_ERROR;
880 cf_fake_continue_tail(capture_file *cf) {
881 cf->state = FILE_READ_DONE;
885 cf_finish_tail(capture_file *cf, int *err)
890 gboolean filtering_tap_listeners;
894 /* Compile the current display filter.
895 * We assume this will not fail since cf->dfilter is only set in
896 * cf_filter IFF the filter was valid.
898 compiled = dfilter_compile(cf->dfilter, &dfcode);
899 g_assert(!cf->dfilter || (compiled && dfcode));
901 /* Do we have any tap listeners with filters? */
902 filtering_tap_listeners = have_filtering_tap_listeners();
904 /* Get the union of the flags for all tap listeners. */
905 tap_flags = union_of_tap_listener_flags();
907 if(cf->wth == NULL) {
909 return CF_READ_ERROR;
912 new_packet_list_check_end();
913 /* Don't freeze/thaw the list when doing live capture */
914 /*new_packet_list_freeze();*/
916 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
917 if (cf->state == FILE_READ_ABORTED) {
918 /* Well, the user decided to abort the read. Break out of the
919 loop, and let the code below (which is called even if there
920 aren't any packets left to read) exit. */
923 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
926 /* Cleanup and release all dfilter resources */
928 dfilter_free(dfcode);
931 /* Don't freeze/thaw the list when doing live capture */
932 /*new_packet_list_thaw();*/
934 if (cf->state == FILE_READ_ABORTED) {
935 /* Well, the user decided to abort the read. We're only called
936 when the child capture process closes the pipe to us (meaning
937 it's probably exited), so we can just close the capture
938 file; we return CF_READ_ABORTED so our caller can do whatever
939 is appropriate when that happens. */
941 return CF_READ_ABORTED;
944 if (auto_scroll_live && cf->count != 0)
945 new_packet_list_moveto_end();
947 /* We're done reading sequentially through the file. */
948 cf->state = FILE_READ_DONE;
950 /* We're done reading sequentially through the file; close the
951 sequential I/O side, to free up memory it requires. */
952 wtap_sequential_close(cf->wth);
954 /* Allow the protocol dissectors to free up memory that they
955 * don't need after the sequential run-through of the packets. */
956 postseq_cleanup_all_protocols();
958 /* Set the file encapsulation type now; we don't know what it is until
959 we've looked at all the packets, as we don't know until then whether
960 there's more than one type (and thus whether it's
961 WTAP_ENCAP_PER_PACKET). */
962 cf->lnk_t = wtap_file_encap(cf->wth);
965 /* We got an error reading the capture file.
966 XXX - pop up a dialog box? */
967 return CF_READ_ERROR;
972 #endif /* HAVE_LIBPCAP */
975 cf_get_display_name(capture_file *cf)
977 const gchar *displayname;
979 /* Return a name to use in displays */
980 if (!cf->is_tempfile) {
981 /* Get the last component of the file name, and use that. */
983 displayname = get_basename(cf->filename);
985 displayname="(No file)";
988 /* The file we read is a temporary file from a live capture;
989 we don't mention its name. */
991 displayname = cf->source;
993 displayname = "(Untitled)";
999 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1005 cf->source = g_strdup(source);
1007 cf->source = g_strdup("");
1011 const gchar *cf_get_tempfile_source(capture_file *cf) {
1019 /* XXX - use a macro instead? */
1021 cf_get_packet_count(capture_file *cf)
1026 /* XXX - use a macro instead? */
1028 cf_set_packet_count(capture_file *cf, int packet_count)
1030 cf->count = packet_count;
1033 /* XXX - use a macro instead? */
1035 cf_is_tempfile(capture_file *cf)
1037 return cf->is_tempfile;
1040 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1042 cf->is_tempfile = is_tempfile;
1046 /* XXX - use a macro instead? */
1047 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1049 cf->drops_known = drops_known;
1052 /* XXX - use a macro instead? */
1053 void cf_set_drops(capture_file *cf, guint32 drops)
1058 /* XXX - use a macro instead? */
1059 gboolean cf_get_drops_known(capture_file *cf)
1061 return cf->drops_known;
1064 /* XXX - use a macro instead? */
1065 guint32 cf_get_drops(capture_file *cf)
1070 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1072 cf->rfcode = rfcode;
1076 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1077 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1079 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1081 gboolean add_to_packet_list)
1083 gboolean create_proto_tree = FALSE;
1088 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1090 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1091 &first_ts, &prev_dis_ts, &prev_cap_ts);
1094 + we have a display filter and are re-applying it;
1095 + we have tap listeners with filters;
1096 + we have tap listeners that require a protocol tree;
1098 allocate a protocol tree root node, so that we'll construct
1099 a protocol tree against which a filter expression can be
1101 if ((dfcode != NULL && refilter) ||
1102 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1103 create_proto_tree = TRUE;
1105 /* Dissect the frame. */
1106 epan_dissect_init(&edt, create_proto_tree, FALSE);
1108 if (dfcode != NULL && refilter) {
1109 epan_dissect_prime_dfilter(&edt, dfcode);
1112 tap_queue_init(&edt);
1113 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1114 tap_push_tapped_queue(&edt);
1116 /* If we have a display filter, apply it if we're refiltering, otherwise
1117 leave the "passed_dfilter" flag alone.
1119 If we don't have a display filter, set "passed_dfilter" to 1. */
1120 if (dfcode != NULL) {
1122 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1125 fdata->flags.passed_dfilter = 1;
1127 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1128 cf->displayed_count++;
1130 if (add_to_packet_list) {
1131 /* We fill the needed columns from new_packet_list */
1132 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1135 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1137 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1139 /* If we haven't yet seen the first frame, this is it.
1141 XXX - we must do this before we add the row to the display,
1142 as, if the display's GtkCList's selection mode is
1143 GTK_SELECTION_BROWSE, when the first entry is added to it,
1144 "cf_select_packet()" will be called, and it will fetch the row
1145 data for the 0th row, and will get a null pointer rather than
1146 "fdata", as "gtk_clist_append()" won't yet have returned and
1147 thus "gtk_clist_set_row_data()" won't yet have been called.
1149 We thus need to leave behind bread crumbs so that
1150 "cf_select_packet()" can find this frame. See the comment
1151 in "cf_select_packet()". */
1152 if (cf->first_displayed == 0)
1153 cf->first_displayed = fdata->num;
1155 /* This is the last frame we've seen so far. */
1156 cf->last_displayed = fdata->num;
1159 epan_dissect_cleanup(&edt);
1164 * Initialize the col_text and col_text_len arrays.
1167 init_col_text(frame_data *fdata, gint num_cols)
1169 fdata->col_text_len = se_alloc0(sizeof(*fdata->col_text_len) * num_cols);
1170 fdata->col_text = se_alloc0(sizeof(*fdata->col_text) * num_cols);
1173 /* read in a new packet */
1174 /* returns the row of the new packet in the packet list or -1 if not displayed */
1176 read_packet(capture_file *cf, dfilter_t *dfcode,
1177 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1179 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1180 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1181 const guchar *buf = wtap_buf_ptr(cf->wth);
1188 /* The frame number of this packet is one more than the count of
1189 frames in this packet. */
1190 framenum = cf->count + 1;
1192 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1193 /* Note - if the packet doesn't pass the read filter, and is thus
1194 not added to the capture_file's collection of packets, the
1195 column text arrays aren't free; they're alocated with
1196 se_alloc0(), so they eventually get freed when we close the
1198 init_col_text(&fdlocal, cf->cinfo.num_cols);
1203 epan_dissect_init(&edt, TRUE, FALSE);
1204 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1205 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1206 passed = dfilter_apply_edt(cf->rfcode, &edt);
1207 epan_dissect_cleanup(&edt);
1211 /* This does a shallow copy of fdlocal, which is good enough. */
1212 fdata = cap_file_add_fdata(cf, &fdlocal);
1214 cf->f_datalen = offset + fdlocal.cap_len;
1216 if (!cf->redissecting) {
1217 row = add_packet_to_packet_list(fdata, cf, dfcode,
1218 filtering_tap_listeners, tap_flags,
1219 pseudo_header, buf, TRUE, TRUE);
1227 cf_merge_files(char **out_filenamep, int in_file_count,
1228 char *const *in_filenames, int file_type, gboolean do_append)
1230 merge_in_file_t *in_files;
1236 int open_err, read_err, write_err, close_err;
1240 char errmsg_errno[1024+1];
1242 gboolean got_read_error = FALSE, got_write_error = FALSE;
1244 progdlg_t *progbar = NULL;
1246 gint64 f_len, file_pos;
1248 GTimeVal start_time;
1249 gchar status_str[100];
1250 gint64 progbar_nextstep;
1251 gint64 progbar_quantum;
1253 /* open the input files */
1254 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1255 &open_err, &err_info, &err_fileno)) {
1257 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1262 if (*out_filenamep != NULL) {
1263 out_filename = *out_filenamep;
1264 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1268 out_fd = create_tempfile(&tmpname, "wireshark");
1271 out_filename = g_strdup(tmpname);
1272 *out_filenamep = out_filename;
1276 merge_close_in_files(in_file_count, in_files);
1278 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1282 pdh = wtap_dump_fdopen(out_fd, file_type,
1283 merge_select_frame_type(in_file_count, in_files),
1284 merge_max_snapshot_length(in_file_count, in_files),
1285 FALSE /* compressed */, &open_err);
1288 merge_close_in_files(in_file_count, in_files);
1290 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1295 /* Get the sum of the sizes of all the files. */
1297 for (i = 0; i < in_file_count; i++)
1298 f_len += in_files[i].size;
1300 /* Update the progress bar when it gets to this value. */
1301 progbar_nextstep = 0;
1302 /* When we reach the value that triggers a progress bar update,
1303 bump that value by this amount. */
1304 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1305 /* Progress so far. */
1309 g_get_current_time(&start_time);
1311 /* do the merge (or append) */
1314 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1317 wth = merge_read_packet(in_file_count, in_files, &read_err,
1321 got_read_error = TRUE;
1325 /* Get the sum of the data offsets in all of the files. */
1327 for (i = 0; i < in_file_count; i++)
1328 data_offset += in_files[i].data_offset;
1330 /* Create the progress bar if necessary.
1331 We check on every iteration of the loop, so that it takes no
1332 longer than the standard time to create it (otherwise, for a
1333 large file, we might take considerably longer than that standard
1334 time in order to get to the next progress bar step). */
1335 if (progbar == NULL) {
1336 progbar = delayed_create_progress_dlg("Merging", "files",
1337 FALSE, &stop_flag, &start_time, progbar_val);
1340 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1341 when we update it, we have to run the GTK+ main loop to get it
1342 to repaint what's pending, and doing so may involve an "ioctl()"
1343 to see if there's any pending input from an X server, and doing
1344 that for every packet can be costly, especially on a big file. */
1345 if (data_offset >= progbar_nextstep) {
1346 /* Get the sum of the seek positions in all of the files. */
1348 for (i = 0; i < in_file_count; i++)
1349 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1350 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1351 if (progbar_val > 1.0f) {
1352 /* Some file probably grew while we were reading it.
1353 That "shouldn't happen", so we'll just clip the progress
1357 if (progbar != NULL) {
1358 g_snprintf(status_str, sizeof(status_str),
1359 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1360 file_pos / 1024, f_len / 1024);
1361 update_progress_dlg(progbar, progbar_val, status_str);
1363 progbar_nextstep += progbar_quantum;
1367 /* Well, the user decided to abort the merge. */
1371 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1372 wtap_buf_ptr(wth), &write_err)) {
1373 got_write_error = TRUE;
1378 /* We're done merging the files; destroy the progress bar if it was created. */
1379 if (progbar != NULL)
1380 destroy_progress_dlg(progbar);
1382 merge_close_in_files(in_file_count, in_files);
1383 if (!got_read_error && !got_write_error) {
1384 if (!wtap_dump_close(pdh, &write_err))
1385 got_write_error = TRUE;
1387 wtap_dump_close(pdh, &close_err);
1389 if (got_read_error) {
1391 * Find the file on which we got the error, and report the error.
1393 for (i = 0; i < in_file_count; i++) {
1394 if (in_files[i].state == GOT_ERROR) {
1395 /* Put up a message box noting that a read failed somewhere along
1399 case WTAP_ERR_UNSUPPORTED_ENCAP:
1400 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1401 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1404 errmsg = errmsg_errno;
1407 case WTAP_ERR_CANT_READ:
1408 errmsg = "An attempt to read from the capture file %s failed for"
1409 " some unknown reason.";
1412 case WTAP_ERR_SHORT_READ:
1413 errmsg = "The capture file %s appears to have been cut short"
1414 " in the middle of a packet.";
1417 case WTAP_ERR_BAD_RECORD:
1418 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1419 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1422 errmsg = errmsg_errno;
1425 case WTAP_ERR_DECOMPRESS:
1426 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1427 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1430 errmsg = errmsg_errno;
1434 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1435 "An error occurred while reading the"
1436 " capture file %%s: %s.", wtap_strerror(read_err));
1437 errmsg = errmsg_errno;
1440 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1445 if (got_write_error) {
1446 /* Put up an alert box for the write error. */
1447 cf_write_failure_alert_box(out_filename, write_err);
1450 if (got_read_error || got_write_error || stop_flag) {
1451 /* Callers aren't expected to treat an error or an explicit abort
1452 differently - we put up error dialogs ourselves, so they don't
1460 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1462 const char *filter_new = dftext ? dftext : "";
1463 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1465 GTimeVal start_time;
1467 /* if new filter equals old one, do nothing unless told to do so */
1468 if (!force && strcmp(filter_new, filter_old) == 0) {
1474 if (dftext == NULL) {
1475 /* The new filter is an empty filter (i.e., display all packets).
1476 * so leave dfcode==NULL
1480 * We have a filter; make a copy of it (as we'll be saving it),
1481 * and try to compile it.
1483 dftext = g_strdup(dftext);
1484 if (!dfilter_compile(dftext, &dfcode)) {
1485 /* The attempt failed; report an error. */
1486 gchar *safe_dftext = simple_dialog_format_message(dftext);
1487 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1489 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1492 "The following display filter isn't a valid display filter:\n%s\n"
1493 "See the help for a description of the display filter syntax.",
1494 simple_dialog_primary_start(), safe_dfilter_error_msg,
1495 simple_dialog_primary_end(), safe_dftext);
1496 g_free(safe_dfilter_error_msg);
1497 g_free(safe_dftext);
1503 if (dfcode == NULL) {
1504 /* Yes - free the filter text, and set it to null. */
1510 /* We have a valid filter. Replace the current filter. */
1511 g_free(cf->dfilter);
1512 cf->dfilter = dftext;
1513 g_get_current_time(&start_time);
1516 /* Now rescan the packet list, applying the new filter, but not
1517 throwing away information constructed on a previous pass. */
1518 if (dftext == NULL) {
1519 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1521 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1524 /* Cleanup and release all dfilter resources */
1525 dfilter_free(dfcode);
1531 cf_reftime_packets(capture_file *cf)
1534 ref_time_packets(cf);
1538 cf_redissect_packets(capture_file *cf)
1540 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1544 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1545 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1549 char errmsg_errno[1024+1];
1551 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1552 fdata->cap_len, &err, &err_info)) {
1555 case WTAP_ERR_UNSUPPORTED_ENCAP:
1556 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1557 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1562 case WTAP_ERR_BAD_RECORD:
1563 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1564 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1565 wtap_strerror(err), err_info);
1570 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1571 "An error occurred while reading from the file \"%%s\": %s.",
1572 wtap_strerror(err));
1575 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1582 cf_read_frame(capture_file *cf, frame_data *fdata)
1584 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1587 /* Rescan the list of packets, reconstructing the CList.
1589 "action" describes why we're doing this; it's used in the progress
1592 "action_item" describes what we're doing; it's used in the progress
1595 "refilter" is TRUE if we need to re-evaluate the filter expression.
1597 "redissect" is TRUE if we need to make the dissectors reconstruct
1598 any state information they have (because a preference that affects
1599 some dissector has changed, meaning some dissector might construct
1600 its state differently from the way it was constructed the last time). */
1602 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1603 gboolean refilter, gboolean redissect)
1605 /* Rescan packets new packet list */
1608 progdlg_t *progbar = NULL;
1611 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1612 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1613 gboolean selected_frame_seen;
1615 GTimeVal start_time;
1616 gchar status_str[100];
1617 int progbar_nextstep;
1618 int progbar_quantum;
1620 gboolean filtering_tap_listeners;
1622 gboolean add_to_packet_list = FALSE;
1625 /* Compile the current display filter.
1626 * We assume this will not fail since cf->dfilter is only set in
1627 * cf_filter IFF the filter was valid.
1629 compiled = dfilter_compile(cf->dfilter, &dfcode);
1630 g_assert(!cf->dfilter || (compiled && dfcode));
1632 /* Do we have any tap listeners with filters? */
1633 filtering_tap_listeners = have_filtering_tap_listeners();
1635 /* Get the union of the flags for all tap listeners. */
1636 tap_flags = union_of_tap_listener_flags();
1638 reset_tap_listeners();
1639 /* Which frame, if any, is the currently selected frame?
1640 XXX - should the selected frame or the focus frame be the "current"
1641 frame, that frame being the one from which "Find Frame" searches
1643 selected_frame = cf->current_frame;
1645 /* Mark frame num as not found */
1646 selected_frame_num = -1;
1648 /* Freeze the packet list while we redo it, so we don't get any
1649 screen updates while it happens. */
1650 new_packet_list_freeze();
1653 /* We need to re-initialize all the state information that protocols
1654 keep, because some preference that controls a dissector has changed,
1655 which might cause the state information to be constructed differently
1656 by that dissector. */
1658 /* We might receive new packets while redissecting, and we don't
1659 want to dissect those before their time. */
1660 cf->redissecting = TRUE;
1662 /* Cleanup all data structures used for dissection. */
1663 cleanup_dissection();
1664 /* Initialize all data structures used for dissection. */
1667 /* We need to redissect the packets so we have to discard our old
1668 * packet list store. */
1669 new_packet_list_clear();
1670 add_to_packet_list = TRUE;
1673 /* We don't yet know which will be the first and last frames displayed. */
1674 cf->first_displayed = 0;
1675 cf->last_displayed = 0;
1677 /* We currently don't display any packets */
1678 cf->displayed_count = 0;
1680 /* Iterate through the list of frames. Call a routine for each frame
1681 to check whether it should be displayed and, if so, add it to
1682 the display list. */
1683 nstime_set_unset(&first_ts);
1684 nstime_set_unset(&prev_dis_ts);
1685 nstime_set_unset(&prev_cap_ts);
1688 /* Update the progress bar when it gets to this value. */
1689 progbar_nextstep = 0;
1690 /* When we reach the value that triggers a progress bar update,
1691 bump that value by this amount. */
1692 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1693 /* Count of packets at which we've looked. */
1695 /* Progress so far. */
1699 g_get_current_time(&start_time);
1701 /* no previous row yet */
1702 prev_frame_num = -1;
1705 preceding_frame_num = -1;
1706 preceding_frame = NULL;
1707 following_frame_num = -1;
1708 following_frame = NULL;
1710 selected_frame_seen = FALSE;
1712 for (framenum = 1; framenum <= cf->count; framenum++) {
1713 fdata = cap_file_find_fdata(cf, framenum);
1715 /* Create the progress bar if necessary.
1716 We check on every iteration of the loop, so that it takes no
1717 longer than the standard time to create it (otherwise, for a
1718 large file, we might take considerably longer than that standard
1719 time in order to get to the next progress bar step). */
1720 if (progbar == NULL)
1721 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1722 &stop_flag, &start_time,
1725 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1726 when we update it, we have to run the GTK+ main loop to get it
1727 to repaint what's pending, and doing so may involve an "ioctl()"
1728 to see if there's any pending input from an X server, and doing
1729 that for every packet can be costly, especially on a big file. */
1730 if (count >= progbar_nextstep) {
1731 /* let's not divide by zero. I should never be started
1732 * with count == 0, so let's assert that
1734 g_assert(cf->count > 0);
1735 progbar_val = (gfloat) count / cf->count;
1737 if (progbar != NULL) {
1738 g_snprintf(status_str, sizeof(status_str),
1739 "%4u of %u frames", count, cf->count);
1740 update_progress_dlg(progbar, progbar_val, status_str);
1743 progbar_nextstep += progbar_quantum;
1747 /* Well, the user decided to abort the filtering. Just stop.
1749 XXX - go back to the previous filter? Users probably just
1750 want not to wait for a filtering operation to finish;
1751 unless we cancel by having no filter, reverting to the
1752 previous filter will probably be even more expensive than
1753 continuing the filtering, as it involves going back to the
1754 beginning and filtering, and even with no filter we currently
1755 have to re-generate the entire clist, which is also expensive.
1757 I'm not sure what Network Monitor does, but it doesn't appear
1758 to give you an unfiltered display if you cancel. */
1765 /* Since all state for the frame was destroyed, mark the frame
1766 * as not visited, free the GSList referring to the state
1767 * data (the per-frame data itself was freed by
1768 * "init_dissection()"), and null out the GSList pointer. */
1769 fdata->flags.visited = 0;
1770 frame_data_cleanup(fdata);
1772 /* cleanup_dissection() calls se_free_all();
1773 * And after that fdata->col_text (which is allocated using se_alloc0())
1774 * no longer points to valid memory.
1776 init_col_text(fdata, cf->cinfo.num_cols);
1779 if (!cf_read_frame(cf, fdata))
1780 break; /* error reading the frame */
1782 /* If the previous frame is displayed, and we haven't yet seen the
1783 selected frame, remember that frame - it's the closest one we've
1784 yet seen before the selected frame. */
1785 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1786 preceding_frame_num = prev_frame_num;
1787 preceding_frame = prev_frame;
1789 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1790 tap_flags, &cf->pseudo_header, cf->pd,
1792 add_to_packet_list);
1794 /* If this frame is displayed, and this is the first frame we've
1795 seen displayed after the selected frame, remember this frame -
1796 it's the closest one we've yet seen at or after the selected
1798 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1799 following_frame_num = fdata->num;
1800 following_frame = fdata;
1802 if (fdata == selected_frame) {
1803 selected_frame_seen = TRUE;
1804 if (fdata->flags.passed_dfilter)
1805 selected_frame_num = fdata->num;
1808 /* Remember this frame - it'll be the previous frame
1809 on the next pass through the loop. */
1810 prev_frame_num = fdata->num;
1814 /* We are done redissecting the packet list. */
1815 cf->redissecting = FALSE;
1818 /* Clear out what remains of the visited flags and per-frame data
1821 XXX - that may cause various forms of bogosity when dissecting
1822 these frames, as they won't have been seen by this sequential
1823 pass, but the only alternative I see is to keep scanning them
1824 even though the user requested that the scan stop, and that
1825 would leave the user stuck with an Wireshark grinding on
1826 until it finishes. Should we just stick them with that? */
1827 for (; framenum <= cf->count; framenum++) {
1828 fdata = cap_file_find_fdata(cf, framenum);
1829 fdata->flags.visited = 0;
1830 frame_data_cleanup(fdata);
1834 /* We're done filtering the packets; destroy the progress bar if it
1836 if (progbar != NULL)
1837 destroy_progress_dlg(progbar);
1839 /* Unfreeze the packet list. */
1840 if (!add_to_packet_list)
1841 new_packet_list_recreate_visible_rows();
1843 /* Compute the time it took to filter the file */
1844 compute_elapsed(&start_time);
1846 new_packet_list_thaw();
1848 if (selected_frame_num == -1) {
1849 /* The selected frame didn't pass the filter. */
1850 if (selected_frame == NULL) {
1851 /* That's because there *was* no selected frame. Make the first
1852 displayed frame the current frame. */
1853 selected_frame_num = 0;
1855 /* Find the nearest displayed frame to the selected frame (whether
1856 it's before or after that frame) and make that the current frame.
1857 If the next and previous displayed frames are equidistant from the
1858 selected frame, choose the next one. */
1859 g_assert(following_frame == NULL ||
1860 following_frame->num >= selected_frame->num);
1861 g_assert(preceding_frame == NULL ||
1862 preceding_frame->num <= selected_frame->num);
1863 if (following_frame == NULL) {
1864 /* No frame after the selected frame passed the filter, so we
1865 have to select the last displayed frame before the selected
1867 selected_frame_num = preceding_frame_num;
1868 selected_frame = preceding_frame;
1869 } else if (preceding_frame == NULL) {
1870 /* No frame before the selected frame passed the filter, so we
1871 have to select the first displayed frame after the selected
1873 selected_frame_num = following_frame_num;
1874 selected_frame = following_frame;
1876 /* Frames before and after the selected frame passed the filter, so
1877 we'll select the previous frame */
1878 selected_frame_num = preceding_frame_num;
1879 selected_frame = preceding_frame;
1884 if (selected_frame_num == -1) {
1885 /* There are no frames displayed at all. */
1886 cf_unselect_packet(cf);
1888 /* Either the frame that was selected passed the filter, or we've
1889 found the nearest displayed frame to that frame. Select it, make
1890 it the focus row, and make it visible. */
1891 /* Set to invalid to force update of packet list and packet details */
1892 cf->current_row = -1;
1893 if (selected_frame_num == 0) {
1894 new_packet_list_select_first_row();
1896 if (!new_packet_list_select_row_from_data(selected_frame)) {
1897 /* We didn't find a row corresponding to this frame.
1898 This means that the frame isn't being displayed currently,
1899 so we can't select it. */
1900 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1901 "%sEnd of capture exceeded!%s\n\n"
1902 "The capture file is probably not fully dissected.",
1903 simple_dialog_primary_start(), simple_dialog_primary_end());
1908 /* Cleanup and release all dfilter resources */
1909 dfilter_free(dfcode);
1914 * Scan trough all frame data and recalculate the ref time
1915 * without rereading the file.
1916 * XXX - do we need a progres bar or is this fast enough?
1919 ref_time_packets(capture_file *cf)
1924 nstime_set_unset(&first_ts);
1925 nstime_set_unset(&prev_dis_ts);
1928 for (framenum = 1; framenum <= cf->count; framenum++) {
1929 fdata = cap_file_find_fdata(cf, framenum);
1931 /* just add some value here until we know if it is being displayed or not */
1932 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1938 /* If we don't have the time stamp of the first packet in the
1939 capture, it's because this is the first packet. Save the time
1940 stamp of this packet as the time stamp of the first packet. */
1941 if (nstime_is_unset(&first_ts)) {
1942 first_ts = fdata->abs_ts;
1944 /* if this frames is marked as a reference time frame, reset
1945 firstsec and firstusec to this frame */
1946 if(fdata->flags.ref_time){
1947 first_ts = fdata->abs_ts;
1950 /* If we don't have the time stamp of the previous displayed packet,
1951 it's because this is the first displayed packet. Save the time
1952 stamp of this packet as the time stamp of the previous displayed
1954 if (nstime_is_unset(&prev_dis_ts)) {
1955 prev_dis_ts = fdata->abs_ts;
1958 /* Get the time elapsed between the first packet and this packet. */
1959 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1961 /* If it's greater than the current elapsed time, set the elapsed time
1962 to it (we check for "greater than" so as not to be confused by
1963 time moving backwards). */
1964 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1965 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1966 cf->elapsed_time = fdata->rel_ts;
1969 /* Get the time elapsed between the previous displayed packet and
1971 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1973 prev_dis_ts = fdata->abs_ts;
1978 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
1979 /* This frame either passed the display filter list or is marked as
1980 a time reference frame. All time reference frames are displayed
1981 even if they dont pass the display filter */
1982 if(fdata->flags.ref_time){
1983 /* if this was a TIME REF frame we should reset the cum_bytes field */
1984 cum_bytes = fdata->pkt_len;
1985 fdata->cum_bytes = cum_bytes;
1987 /* increase cum_bytes with this packets length */
1988 cum_bytes += fdata->pkt_len;
2001 process_specified_packets(capture_file *cf, packet_range_t *range,
2002 const char *string1, const char *string2, gboolean terminate_is_stop,
2003 gboolean (*callback)(capture_file *, frame_data *,
2004 union wtap_pseudo_header *, const guint8 *, void *),
2005 void *callback_args)
2009 union wtap_pseudo_header pseudo_header;
2010 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2011 psp_return_t ret = PSP_FINISHED;
2013 progdlg_t *progbar = NULL;
2016 gboolean progbar_stop_flag;
2017 GTimeVal progbar_start_time;
2018 gchar progbar_status_str[100];
2019 int progbar_nextstep;
2020 int progbar_quantum;
2021 range_process_e process_this;
2023 /* Update the progress bar when it gets to this value. */
2024 progbar_nextstep = 0;
2025 /* When we reach the value that triggers a progress bar update,
2026 bump that value by this amount. */
2027 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2028 /* Count of packets at which we've looked. */
2030 /* Progress so far. */
2033 progbar_stop_flag = FALSE;
2034 g_get_current_time(&progbar_start_time);
2036 packet_range_process_init(range);
2038 /* Iterate through all the packets, printing the packets that
2039 were selected by the current display filter. */
2040 for (framenum = 1; framenum <= cf->count; framenum++) {
2041 fdata = cap_file_find_fdata(cf, framenum);
2043 /* Create the progress bar if necessary.
2044 We check on every iteration of the loop, so that it takes no
2045 longer than the standard time to create it (otherwise, for a
2046 large file, we might take considerably longer than that standard
2047 time in order to get to the next progress bar step). */
2048 if (progbar == NULL)
2049 progbar = delayed_create_progress_dlg(string1, string2,
2052 &progbar_start_time,
2055 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2056 when we update it, we have to run the GTK+ main loop to get it
2057 to repaint what's pending, and doing so may involve an "ioctl()"
2058 to see if there's any pending input from an X server, and doing
2059 that for every packet can be costly, especially on a big file. */
2060 if (progbar_count >= progbar_nextstep) {
2061 /* let's not divide by zero. I should never be started
2062 * with count == 0, so let's assert that
2064 g_assert(cf->count > 0);
2065 progbar_val = (gfloat) progbar_count / cf->count;
2067 if (progbar != NULL) {
2068 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2069 "%4u of %u packets", progbar_count, cf->count);
2070 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2073 progbar_nextstep += progbar_quantum;
2076 if (progbar_stop_flag) {
2077 /* Well, the user decided to abort the operation. Just stop,
2078 and arrange to return PSP_STOPPED to our caller, so they know
2079 it was stopped explicitly. */
2086 /* do we have to process this packet? */
2087 process_this = packet_range_process_packet(range, fdata);
2088 if (process_this == range_process_next) {
2089 /* this packet uninteresting, continue with next one */
2091 } else if (process_this == range_processing_finished) {
2092 /* all interesting packets processed, stop the loop */
2096 /* Get the packet */
2097 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2098 /* Attempt to get the packet failed. */
2102 /* Process the packet */
2103 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2104 /* Callback failed. We assume it reported the error appropriately. */
2110 /* We're done printing the packets; destroy the progress bar if
2112 if (progbar != NULL)
2113 destroy_progress_dlg(progbar);
2119 gboolean construct_protocol_tree;
2121 } retap_callback_args_t;
2124 retap_packet(capture_file *cf _U_, frame_data *fdata,
2125 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2128 retap_callback_args_t *args = argsp;
2131 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2132 tap_queue_init(&edt);
2133 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2134 tap_push_tapped_queue(&edt);
2135 epan_dissect_cleanup(&edt);
2141 cf_retap_packets(capture_file *cf)
2143 packet_range_t range;
2144 retap_callback_args_t callback_args;
2145 gboolean filtering_tap_listeners;
2148 /* Do we have any tap listeners with filters? */
2149 filtering_tap_listeners = have_filtering_tap_listeners();
2151 tap_flags = union_of_tap_listener_flags();
2153 /* If any tap listeners have filters, or require the protocol tree,
2154 construct the protocol tree. */
2155 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2156 (tap_flags & TL_REQUIRES_PROTO_TREE);
2158 /* If any tap listeners require the columns, construct them. */
2159 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2161 /* Reset the tap listeners. */
2162 reset_tap_listeners();
2164 /* Iterate through the list of packets, dissecting all packets and
2165 re-running the taps. */
2166 packet_range_init(&range);
2167 packet_range_process_init(&range);
2168 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2169 "all packets", TRUE, retap_packet,
2172 /* Completed successfully. */
2176 /* Well, the user decided to abort the refiltering.
2177 Return CF_READ_ABORTED so our caller knows they did that. */
2178 return CF_READ_ABORTED;
2181 /* Error while retapping. */
2182 return CF_READ_ERROR;
2185 g_assert_not_reached();
2190 print_args_t *print_args;
2191 gboolean print_header_line;
2192 char *header_line_buf;
2193 int header_line_buf_len;
2194 gboolean print_formfeed;
2195 gboolean print_separator;
2199 } print_callback_args_t;
2202 print_packet(capture_file *cf, frame_data *fdata,
2203 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2206 print_callback_args_t *args = argsp;
2213 gboolean proto_tree_needed;
2214 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2215 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2217 /* Create the protocol tree, and make it visible, if we're printing
2218 the dissection or the hex data.
2219 XXX - do we need it if we're just printing the hex data? */
2221 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2222 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2224 /* Fill in the column information if we're printing the summary
2226 if (args->print_args->print_summary) {
2227 col_custom_prime_edt(&edt, &cf->cinfo);
2228 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2229 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2231 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2233 if (args->print_formfeed) {
2234 if (!new_page(args->print_args->stream))
2237 if (args->print_separator) {
2238 if (!print_line(args->print_args->stream, 0, ""))
2244 * We generate bookmarks, if the output format supports them.
2245 * The name is "__frameN__".
2247 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2249 if (args->print_args->print_summary) {
2250 if (args->print_header_line) {
2251 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2253 args->print_header_line = FALSE; /* we might not need to print any more */
2255 cp = &args->line_buf[0];
2257 for (i = 0; i < cf->cinfo.num_cols; i++) {
2258 /* Find the length of the string for this column. */
2259 column_len = (int) strlen(cf->cinfo.col_data[i]);
2260 if (args->col_widths[i] > column_len)
2261 column_len = args->col_widths[i];
2263 /* Make sure there's room in the line buffer for the column; if not,
2264 double its length. */
2265 line_len += column_len + 1; /* "+1" for space */
2266 if (line_len > args->line_buf_len) {
2267 cp_off = (int) (cp - args->line_buf);
2268 args->line_buf_len = 2 * line_len;
2269 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2270 cp = args->line_buf + cp_off;
2273 /* Right-justify the packet number column. */
2274 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2275 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2277 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2279 if (i != cf->cinfo.num_cols - 1)
2285 * Generate a bookmark, using the summary line as the title.
2287 if (!print_bookmark(args->print_args->stream, bookmark_name,
2291 if (!print_line(args->print_args->stream, 0, args->line_buf))
2295 * Generate a bookmark, using "Frame N" as the title, as we're not
2296 * printing the summary line.
2298 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2299 if (!print_bookmark(args->print_args->stream, bookmark_name,
2302 } /* if (print_summary) */
2304 if (args->print_args->print_dissections != print_dissections_none) {
2305 if (args->print_args->print_summary) {
2306 /* Separate the summary line from the tree with a blank line. */
2307 if (!print_line(args->print_args->stream, 0, ""))
2311 /* Print the information in that tree. */
2312 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2315 /* Print a blank line if we print anything after this (aka more than one packet). */
2316 args->print_separator = TRUE;
2318 /* Print a header line if we print any more packet summaries */
2319 args->print_header_line = TRUE;
2322 if (args->print_args->print_hex) {
2323 /* Print the full packet data as hex. */
2324 if (!print_hex_data(args->print_args->stream, &edt))
2327 /* Print a blank line if we print anything after this (aka more than one packet). */
2328 args->print_separator = TRUE;
2330 /* Print a header line if we print any more packet summaries */
2331 args->print_header_line = TRUE;
2332 } /* if (args->print_args->print_dissections != print_dissections_none) */
2334 epan_dissect_cleanup(&edt);
2336 /* do we want to have a formfeed between each packet from now on? */
2337 if(args->print_args->print_formfeed) {
2338 args->print_formfeed = TRUE;
2344 epan_dissect_cleanup(&edt);
2349 cf_print_packets(capture_file *cf, print_args_t *print_args)
2352 print_callback_args_t callback_args;
2360 callback_args.print_args = print_args;
2361 callback_args.print_header_line = TRUE;
2362 callback_args.header_line_buf = NULL;
2363 callback_args.header_line_buf_len = 256;
2364 callback_args.print_formfeed = FALSE;
2365 callback_args.print_separator = FALSE;
2366 callback_args.line_buf = NULL;
2367 callback_args.line_buf_len = 256;
2368 callback_args.col_widths = NULL;
2370 if (!print_preamble(print_args->stream, cf->filename)) {
2371 destroy_print_stream(print_args->stream);
2372 return CF_PRINT_WRITE_ERROR;
2375 if (print_args->print_summary) {
2376 /* We're printing packet summaries. Allocate the header line buffer
2377 and get the column widths. */
2378 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2380 /* Find the widths for each of the columns - maximum of the
2381 width of the title and the width of the data - and construct
2382 a buffer with a line containing the column titles. */
2383 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2384 cp = &callback_args.header_line_buf[0];
2386 for (i = 0; i < cf->cinfo.num_cols; i++) {
2387 /* Don't pad the last column. */
2388 if (i == cf->cinfo.num_cols - 1)
2389 callback_args.col_widths[i] = 0;
2391 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2392 data_width = get_column_char_width(get_column_format(i));
2393 if (data_width > callback_args.col_widths[i])
2394 callback_args.col_widths[i] = data_width;
2397 /* Find the length of the string for this column. */
2398 column_len = (int) strlen(cf->cinfo.col_title[i]);
2399 if (callback_args.col_widths[i] > column_len)
2400 column_len = callback_args.col_widths[i];
2402 /* Make sure there's room in the line buffer for the column; if not,
2403 double its length. */
2404 line_len += column_len + 1; /* "+1" for space */
2405 if (line_len > callback_args.header_line_buf_len) {
2406 cp_off = (int) (cp - callback_args.header_line_buf);
2407 callback_args.header_line_buf_len = 2 * line_len;
2408 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2409 callback_args.header_line_buf_len + 1);
2410 cp = callback_args.header_line_buf + cp_off;
2413 /* Right-justify the packet number column. */
2414 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2415 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2417 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2419 if (i != cf->cinfo.num_cols - 1)
2424 /* Now start out the main line buffer with the same length as the
2425 header line buffer. */
2426 callback_args.line_buf_len = callback_args.header_line_buf_len;
2427 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2428 } /* if (print_summary) */
2430 /* Iterate through the list of packets, printing the packets we were
2432 ret = process_specified_packets(cf, &print_args->range, "Printing",
2433 "selected packets", TRUE, print_packet,
2436 g_free(callback_args.header_line_buf);
2437 g_free(callback_args.line_buf);
2438 g_free(callback_args.col_widths);
2443 /* Completed successfully. */
2447 /* Well, the user decided to abort the printing.
2449 XXX - note that what got generated before they did that
2450 will get printed if we're piping to a print program; we'd
2451 have to write to a file and then hand that to the print
2452 program to make it actually not print anything. */
2456 /* Error while printing.
2458 XXX - note that what got generated before they did that
2459 will get printed if we're piping to a print program; we'd
2460 have to write to a file and then hand that to the print
2461 program to make it actually not print anything. */
2462 destroy_print_stream(print_args->stream);
2463 return CF_PRINT_WRITE_ERROR;
2466 if (!print_finale(print_args->stream)) {
2467 destroy_print_stream(print_args->stream);
2468 return CF_PRINT_WRITE_ERROR;
2471 if (!destroy_print_stream(print_args->stream))
2472 return CF_PRINT_WRITE_ERROR;
2478 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2479 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2485 /* Create the protocol tree, but don't fill in the column information. */
2486 epan_dissect_init(&edt, TRUE, TRUE);
2487 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2489 /* Write out the information in that tree. */
2490 proto_tree_write_pdml(&edt, fh);
2492 epan_dissect_cleanup(&edt);
2498 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2503 fh = ws_fopen(print_args->file, "w");
2505 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2507 write_pdml_preamble(fh);
2510 return CF_PRINT_WRITE_ERROR;
2513 /* Iterate through the list of packets, printing the packets we were
2515 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2516 "selected packets", TRUE,
2517 write_pdml_packet, fh);
2522 /* Completed successfully. */
2526 /* Well, the user decided to abort the printing. */
2530 /* Error while printing. */
2532 return CF_PRINT_WRITE_ERROR;
2535 write_pdml_finale(fh);
2538 return CF_PRINT_WRITE_ERROR;
2541 /* XXX - check for an error */
2548 write_psml_packet(capture_file *cf, frame_data *fdata,
2549 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2554 gboolean proto_tree_needed;
2556 /* Fill in the column information, only create the protocol tree
2557 if having custom columns. */
2558 proto_tree_needed = have_custom_cols(&cf->cinfo);
2559 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2560 col_custom_prime_edt(&edt, &cf->cinfo);
2561 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2562 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2564 /* Write out the information in that tree. */
2565 proto_tree_write_psml(&edt, fh);
2567 epan_dissect_cleanup(&edt);
2573 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2578 fh = ws_fopen(print_args->file, "w");
2580 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2582 write_psml_preamble(fh);
2585 return CF_PRINT_WRITE_ERROR;
2588 /* Iterate through the list of packets, printing the packets we were
2590 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2591 "selected packets", TRUE,
2592 write_psml_packet, fh);
2597 /* Completed successfully. */
2601 /* Well, the user decided to abort the printing. */
2605 /* Error while printing. */
2607 return CF_PRINT_WRITE_ERROR;
2610 write_psml_finale(fh);
2613 return CF_PRINT_WRITE_ERROR;
2616 /* XXX - check for an error */
2623 write_csv_packet(capture_file *cf, frame_data *fdata,
2624 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2629 gboolean proto_tree_needed;
2631 /* Fill in the column information, only create the protocol tree
2632 if having custom columns. */
2633 proto_tree_needed = have_custom_cols(&cf->cinfo);
2634 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2635 col_custom_prime_edt(&edt, &cf->cinfo);
2636 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2637 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2639 /* Write out the information in that tree. */
2640 proto_tree_write_csv(&edt, fh);
2642 epan_dissect_cleanup(&edt);
2648 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2653 fh = ws_fopen(print_args->file, "w");
2655 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2657 write_csv_preamble(fh);
2660 return CF_PRINT_WRITE_ERROR;
2663 /* Iterate through the list of packets, printing the packets we were
2665 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2666 "selected packets", TRUE,
2667 write_csv_packet, fh);
2672 /* Completed successfully. */
2676 /* Well, the user decided to abort the printing. */
2680 /* Error while printing. */
2682 return CF_PRINT_WRITE_ERROR;
2685 write_csv_finale(fh);
2688 return CF_PRINT_WRITE_ERROR;
2691 /* XXX - check for an error */
2698 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2699 union wtap_pseudo_header *pseudo_header _U_,
2700 const guint8 *pd, void *argsp)
2704 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
2709 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2714 fh = ws_fopen(print_args->file, "w");
2717 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2719 write_carrays_preamble(fh);
2723 return CF_PRINT_WRITE_ERROR;
2726 /* Iterate through the list of packets, printing the packets we were
2728 ret = process_specified_packets(cf, &print_args->range,
2730 "selected packets", TRUE,
2731 write_carrays_packet, fh);
2734 /* Completed successfully. */
2737 /* Well, the user decided to abort the printing. */
2740 /* Error while printing. */
2742 return CF_PRINT_WRITE_ERROR;
2745 write_carrays_finale(fh);
2749 return CF_PRINT_WRITE_ERROR;
2757 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2758 search_direction dir)
2762 mdata.string = string;
2763 mdata.string_len = strlen(string);
2764 return find_packet(cf, match_protocol_tree, &mdata, dir);
2768 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2770 mdata->frame_matched = FALSE;
2771 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2772 mdata->string_len = strlen(mdata->string);
2774 /* Iterate through all the nodes looking for matching text */
2775 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2776 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2780 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2782 match_data *mdata = criterion;
2785 /* Load the frame's data. */
2786 if (!cf_read_frame(cf, fdata)) {
2787 /* Attempt to get the packet failed. */
2791 /* Construct the protocol tree, including the displayed text */
2792 epan_dissect_init(&edt, TRUE, TRUE);
2793 /* We don't need the column information */
2794 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2796 /* Iterate through all the nodes, seeing if they have text that matches. */
2798 mdata->frame_matched = FALSE;
2799 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2800 epan_dissect_cleanup(&edt);
2801 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2805 match_subtree_text(proto_node *node, gpointer data)
2807 match_data *mdata = (match_data*) data;
2808 const gchar *string = mdata->string;
2809 size_t string_len = mdata->string_len;
2810 capture_file *cf = mdata->cf;
2811 field_info *fi = PNODE_FINFO(node);
2812 gchar label_str[ITEM_LABEL_LENGTH];
2819 g_assert(fi && "dissection with an invisible proto tree?");
2821 if (mdata->frame_matched) {
2822 /* We already had a match; don't bother doing any more work. */
2826 /* Don't match invisible entries. */
2827 if (PROTO_ITEM_IS_HIDDEN(node))
2830 /* was a free format label produced? */
2832 label_ptr = fi->rep->representation;
2834 /* no, make a generic label */
2835 label_ptr = label_str;
2836 proto_item_fill_label(fi, label_str);
2839 /* Does that label match? */
2840 label_len = strlen(label_ptr);
2841 for (i = 0; i < label_len; i++) {
2842 c_char = label_ptr[i];
2844 c_char = toupper(c_char);
2845 if (c_char == string[c_match]) {
2847 if (c_match == string_len) {
2848 /* No need to look further; we have a match */
2849 mdata->frame_matched = TRUE;
2857 /* Recurse into the subtree, if it exists */
2858 if (node->first_child != NULL)
2859 proto_tree_children_foreach(node, match_subtree_text, mdata);
2863 cf_find_packet_summary_line(capture_file *cf, const char *string,
2864 search_direction dir)
2868 mdata.string = string;
2869 mdata.string_len = strlen(string);
2870 return find_packet(cf, match_summary_line, &mdata, dir);
2874 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2876 match_data *mdata = criterion;
2877 const gchar *string = mdata->string;
2878 size_t string_len = mdata->string_len;
2880 const char *info_column;
2881 size_t info_column_len;
2882 match_result result = MR_NOTMATCHED;
2888 /* Load the frame's data. */
2889 if (!cf_read_frame(cf, fdata)) {
2890 /* Attempt to get the packet failed. */
2894 /* Don't bother constructing the protocol tree */
2895 epan_dissect_init(&edt, FALSE, FALSE);
2896 /* Get the column information */
2897 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2899 /* Find the Info column */
2900 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2901 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2902 /* Found it. See if we match. */
2903 info_column = edt.pi.cinfo->col_data[colx];
2904 info_column_len = strlen(info_column);
2905 for (i = 0; i < info_column_len; i++) {
2906 c_char = info_column[i];
2908 c_char = toupper(c_char);
2909 if (c_char == string[c_match]) {
2911 if (c_match == string_len) {
2912 result = MR_MATCHED;
2921 epan_dissect_cleanup(&edt);
2928 } cbs_t; /* "Counted byte string" */
2931 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2932 search_direction dir)
2937 info.data_len = string_size;
2939 /* String or hex search? */
2941 /* String search - what type of string? */
2942 switch (cf->scs_type) {
2944 case SCS_ASCII_AND_UNICODE:
2945 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2948 return find_packet(cf, match_ascii, &info, dir);
2951 return find_packet(cf, match_unicode, &info, dir);
2954 g_assert_not_reached();
2958 return find_packet(cf, match_binary, &info, dir);
2962 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2964 cbs_t *info = criterion;
2965 const guint8 *ascii_text = info->data;
2966 size_t textlen = info->data_len;
2967 match_result result;
2973 /* Load the frame's data. */
2974 if (!cf_read_frame(cf, fdata)) {
2975 /* Attempt to get the packet failed. */
2979 result = MR_NOTMATCHED;
2980 buf_len = fdata->pkt_len;
2981 for (i = 0; i < buf_len; i++) {
2984 c_char = toupper(c_char);
2986 if (c_char == ascii_text[c_match]) {
2988 if (c_match == textlen) {
2989 result = MR_MATCHED;
2990 cf->search_pos = i; /* Save the position of the last character
2991 for highlighting the field. */
3002 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3004 cbs_t *info = criterion;
3005 const guint8 *ascii_text = info->data;
3006 size_t textlen = info->data_len;
3007 match_result result;
3013 /* Load the frame's data. */
3014 if (!cf_read_frame(cf, fdata)) {
3015 /* Attempt to get the packet failed. */
3019 result = MR_NOTMATCHED;
3020 buf_len = fdata->pkt_len;
3021 for (i = 0; i < buf_len; i++) {
3024 c_char = toupper(c_char);
3025 if (c_char == ascii_text[c_match]) {
3027 if (c_match == textlen) {
3028 result = MR_MATCHED;
3029 cf->search_pos = i; /* Save the position of the last character
3030 for highlighting the field. */
3040 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3042 cbs_t *info = criterion;
3043 const guint8 *ascii_text = info->data;
3044 size_t textlen = info->data_len;
3045 match_result result;
3051 /* Load the frame's data. */
3052 if (!cf_read_frame(cf, fdata)) {
3053 /* Attempt to get the packet failed. */
3057 result = MR_NOTMATCHED;
3058 buf_len = fdata->pkt_len;
3059 for (i = 0; i < buf_len; i++) {
3062 c_char = toupper(c_char);
3063 if (c_char == ascii_text[c_match]) {
3066 if (c_match == textlen) {
3067 result = MR_MATCHED;
3068 cf->search_pos = i; /* Save the position of the last character
3069 for highlighting the field. */
3079 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3081 cbs_t *info = criterion;
3082 const guint8 *binary_data = info->data;
3083 size_t datalen = info->data_len;
3084 match_result result;
3089 /* Load the frame's data. */
3090 if (!cf_read_frame(cf, fdata)) {
3091 /* Attempt to get the packet failed. */
3095 result = MR_NOTMATCHED;
3096 buf_len = fdata->pkt_len;
3097 for (i = 0; i < buf_len; i++) {
3098 if (cf->pd[i] == binary_data[c_match]) {
3100 if (c_match == datalen) {
3101 result = MR_MATCHED;
3102 cf->search_pos = i; /* Save the position of the last character
3103 for highlighting the field. */
3113 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3114 search_direction dir)
3116 return find_packet(cf, match_dfilter, sfcode, dir);
3120 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3121 search_direction dir)
3126 if (!dfilter_compile(filter, &sfcode)) {
3128 * XXX - this shouldn't happen, as the filter string is machine
3133 if (sfcode == NULL) {
3135 * XXX - this shouldn't happen, as the filter string is machine
3140 result = find_packet(cf, match_dfilter, sfcode, dir);
3141 dfilter_free(sfcode);
3146 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3148 dfilter_t *sfcode = criterion;
3150 match_result result;
3152 /* Load the frame's data. */
3153 if (!cf_read_frame(cf, fdata)) {
3154 /* Attempt to get the packet failed. */
3158 epan_dissect_init(&edt, TRUE, FALSE);
3159 epan_dissect_prime_dfilter(&edt, sfcode);
3160 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3161 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3162 epan_dissect_cleanup(&edt);
3167 cf_find_packet_marked(capture_file *cf, search_direction dir)
3169 return find_packet(cf, match_marked, NULL, dir);
3173 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3175 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3179 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3181 return find_packet(cf, match_time_reference, NULL, dir);
3185 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3187 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3191 find_packet(capture_file *cf,
3192 match_result (*match_function)(capture_file *, frame_data *, void *),
3193 void *criterion, search_direction dir)
3195 frame_data *start_fd;
3198 frame_data *new_fd = NULL;
3199 progdlg_t *progbar = NULL;
3204 GTimeVal start_time;
3205 gchar status_str[100];
3206 int progbar_nextstep;
3207 int progbar_quantum;
3209 match_result result;
3211 start_fd = cf->current_frame;
3212 if (start_fd != NULL) {
3213 /* Iterate through the list of packets, starting at the packet we've
3214 picked, calling a routine to run the filter on the packet, see if
3215 it matches, and stop if so. */
3217 framenum = start_fd->num;
3219 /* Update the progress bar when it gets to this value. */
3220 progbar_nextstep = 0;
3221 /* When we reach the value that triggers a progress bar update,
3222 bump that value by this amount. */
3223 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3224 /* Progress so far. */
3228 g_get_current_time(&start_time);
3230 title = cf->sfilter?cf->sfilter:"";
3232 /* Create the progress bar if necessary.
3233 We check on every iteration of the loop, so that it takes no
3234 longer than the standard time to create it (otherwise, for a
3235 large file, we might take considerably longer than that standard
3236 time in order to get to the next progress bar step). */
3237 if (progbar == NULL)
3238 progbar = delayed_create_progress_dlg("Searching", title,
3239 FALSE, &stop_flag, &start_time, progbar_val);
3241 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3242 when we update it, we have to run the GTK+ main loop to get it
3243 to repaint what's pending, and doing so may involve an "ioctl()"
3244 to see if there's any pending input from an X server, and doing
3245 that for every packet can be costly, especially on a big file. */
3246 if (count >= progbar_nextstep) {
3247 /* let's not divide by zero. I should never be started
3248 * with count == 0, so let's assert that
3250 g_assert(cf->count > 0);
3252 progbar_val = (gfloat) count / cf->count;
3254 if (progbar != NULL) {
3255 g_snprintf(status_str, sizeof(status_str),
3256 "%4u of %u packets", count, cf->count);
3257 update_progress_dlg(progbar, progbar_val, status_str);
3260 progbar_nextstep += progbar_quantum;
3264 /* Well, the user decided to abort the search. Go back to the
3265 frame where we started. */
3270 /* Go past the current frame. */
3271 if (dir == SD_BACKWARD) {
3272 /* Go on to the previous frame. */
3273 if (framenum == 1) {
3275 * XXX - other apps have a bit more of a detailed message
3276 * for this, and instead of offering "OK" and "Cancel",
3277 * they offer things such as "Continue" and "Cancel";
3278 * we need an API for popping up alert boxes with
3279 * {Verb} and "Cancel".
3282 if (prefs.gui_find_wrap)
3284 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3285 framenum = cf->count; /* wrap around */
3289 statusbar_push_temporary_msg("Search reached the beginning.");
3290 framenum = start_fd->num; /* stay on previous packet */
3295 /* Go on to the next frame. */
3296 if (framenum == cf->count) {
3297 if (prefs.gui_find_wrap)
3299 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3300 framenum = 1; /* wrap around */
3304 statusbar_push_temporary_msg("Search reached the end.");
3305 framenum = start_fd->num; /* stay on previous packet */
3310 fdata = cap_file_find_fdata(cf, framenum);
3314 /* Is this packet in the display? */
3315 if (fdata->flags.passed_dfilter) {
3316 /* Yes. Does it match the search criterion? */
3317 result = (*match_function)(cf, fdata, criterion);
3318 if (result == MR_ERROR) {
3319 /* Error; our caller has reported the error. Go back to the frame
3320 where we started. */
3323 } else if (result == MR_MATCHED) {
3324 /* Yes. Go to the new frame. */
3330 if (fdata == start_fd) {
3331 /* We're back to the frame we were on originally, and that frame
3332 doesn't match the search filter. The search failed. */
3337 /* We're done scanning the packets; destroy the progress bar if it
3339 if (progbar != NULL)
3340 destroy_progress_dlg(progbar);
3343 if (new_fd != NULL) {
3344 /* Find and select */
3345 cf->search_in_progress = TRUE;
3346 found = new_packet_list_select_row_from_data(new_fd);
3347 cf->search_in_progress = FALSE;
3348 cf->search_pos = 0; /* Reset the position */
3350 /* We didn't find a row corresponding to this frame.
3351 This means that the frame isn't being displayed currently,
3352 so we can't select it. */
3353 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3354 "%sEnd of capture exceeded!%s\n\n"
3355 "The capture file is probably not fully dissected.",
3356 simple_dialog_primary_start(), simple_dialog_primary_end());
3359 return TRUE; /* success */
3361 return FALSE; /* failure */
3365 cf_goto_frame(capture_file *cf, guint fnumber)
3369 fdata = cap_file_find_fdata(cf, fnumber);
3371 if (fdata == NULL) {
3372 /* we didn't find a packet with that packet number */
3373 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3374 return FALSE; /* we failed to go to that packet */
3376 if (!fdata->flags.passed_dfilter) {
3377 /* that packet currently isn't displayed */
3378 /* XXX - add it to the set of displayed packets? */
3379 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3380 return FALSE; /* we failed to go to that packet */
3383 if (!new_packet_list_select_row_from_data(fdata)) {
3384 /* We didn't find a row corresponding to this frame.
3385 This means that the frame isn't being displayed currently,
3386 so we can't select it. */
3387 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3388 "%sEnd of capture exceeded!%s\n\n"
3389 "The capture file is probably not fully dissected.",
3390 simple_dialog_primary_start(), simple_dialog_primary_end());
3393 return TRUE; /* we got to that packet */
3399 /* Find and select */
3400 new_packet_list_select_first_row();
3401 return TRUE; /* we got to that packet */
3405 cf_goto_bottom_frame()
3407 /* Find and select */
3408 new_packet_list_select_last_row();
3409 return TRUE; /* we got to that packet */
3413 * Go to frame specified by currently selected protocol tree item.
3416 cf_goto_framenum(capture_file *cf)
3418 header_field_info *hfinfo;
3421 if (cf->finfo_selected) {
3422 hfinfo = cf->finfo_selected->hfinfo;
3424 if (hfinfo->type == FT_FRAMENUM) {
3425 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3427 return cf_goto_frame(cf, framenum);
3434 /* Select the packet on a given row. */
3436 cf_select_packet(capture_file *cf, int row)
3440 /* Get the frame data struct pointer for this frame */
3441 fdata = new_packet_list_get_row_data(row);
3443 if (fdata == NULL) {
3444 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3445 the first entry is added to it by "real_insert_row()", that row
3446 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3447 our version and the vanilla GTK+ version).
3449 This means that a "select-row" signal is emitted; this causes
3450 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3453 "cf_select_packet()" fetches, above, the data associated with the
3454 row that was selected; however, as "gtk_clist_append()", which
3455 called "real_insert_row()", hasn't yet returned, we haven't yet
3456 associated any data with that row, so we get back a null pointer.
3458 We can't assume that there's only one frame in the frame list,
3459 either, as we may be filtering the display.
3461 We therefore assume that, if "row" is 0, i.e. the first row
3462 is being selected, and "cf->first_displayed" equals
3463 "cf->last_displayed", i.e. there's only one frame being
3464 displayed, that frame is the frame we want.
3466 This means we have to set "cf->first_displayed" and
3467 "cf->last_displayed" before adding the row to the
3468 GtkCList; see the comment in "add_packet_to_packet_list()". */
3470 if (row == 0 && cf->first_displayed == cf->last_displayed)
3471 fdata = cap_file_find_fdata(cf, cf->first_displayed);
3474 /* If fdata _still_ isn't set simply give up. */
3475 if (fdata == NULL) {
3479 /* Get the data in that frame. */
3480 if (!cf_read_frame (cf, fdata)) {
3484 /* Record that this frame is the current frame. */
3485 cf->current_frame = fdata;
3486 cf->current_row = row;
3488 /* Create the logical protocol tree. */
3489 if (cf->edt != NULL)
3490 epan_dissect_free(cf->edt);
3492 /* We don't need the columns here. */
3493 cf->edt = epan_dissect_new(TRUE, TRUE);
3495 tap_build_interesting(cf->edt);
3496 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3499 dfilter_macro_build_ftv_cache(cf->edt->tree);
3501 cf_callback_invoke(cf_cb_packet_selected, cf);
3504 /* Unselect the selected packet, if any. */
3506 cf_unselect_packet(capture_file *cf)
3508 /* Destroy the epan_dissect_t for the unselected packet. */
3509 if (cf->edt != NULL) {
3510 epan_dissect_free(cf->edt);
3514 /* No packet is selected. */
3515 cf->current_frame = NULL;
3516 cf->current_row = 0;
3518 cf_callback_invoke(cf_cb_packet_unselected, cf);
3520 /* No protocol tree means no selected field. */
3521 cf_unselect_field(cf);
3524 /* Unset the selected protocol tree field, if any. */
3526 cf_unselect_field(capture_file *cf)
3528 cf->finfo_selected = NULL;
3530 cf_callback_invoke(cf_cb_field_unselected, cf);
3534 * Mark a particular frame.
3537 cf_mark_frame(capture_file *cf, frame_data *frame)
3539 if (! frame->flags.marked) {
3540 frame->flags.marked = TRUE;
3541 if (cf->count > cf->marked_count)
3547 * Unmark a particular frame.
3550 cf_unmark_frame(capture_file *cf, frame_data *frame)
3552 if (frame->flags.marked) {
3553 frame->flags.marked = FALSE;
3554 if (cf->marked_count > 0)
3560 * Ignore a particular frame.
3563 cf_ignore_frame(capture_file *cf, frame_data *frame)
3565 if (! frame->flags.ignored) {
3566 frame->flags.ignored = TRUE;
3567 if (cf->count > cf->ignored_count)
3568 cf->ignored_count++;
3573 * Un-ignore a particular frame.
3576 cf_unignore_frame(capture_file *cf, frame_data *frame)
3578 if (frame->flags.ignored) {
3579 frame->flags.ignored = FALSE;
3580 if (cf->ignored_count > 0)
3581 cf->ignored_count--;
3588 } save_callback_args_t;
3591 * Save a capture to a file, in a particular format, saving either
3592 * all packets, all currently-displayed packets, or all marked packets.
3594 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3595 * up a message box for the failure.
3598 save_packet(capture_file *cf _U_, frame_data *fdata,
3599 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3602 save_callback_args_t *args = argsp;
3603 struct wtap_pkthdr hdr;
3606 /* init the wtap header for saving */
3607 hdr.ts.secs = fdata->abs_ts.secs;
3608 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3609 hdr.caplen = fdata->cap_len;
3610 hdr.len = fdata->pkt_len;
3611 hdr.pkt_encap = fdata->lnk_t;
3613 /* and save the packet */
3614 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3615 cf_write_failure_alert_box(args->fname, err);
3622 * Can this capture file be saved in any format except by copying the raw data?
3625 cf_can_save_as(capture_file *cf)
3629 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3630 /* To save a file with Wiretap, Wiretap has to handle that format,
3631 and its code to handle that format must be able to write a file
3632 with this file's encapsulation type. */
3633 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3634 /* OK, we can write it out in this type. */
3639 /* No, we couldn't save it in any format. */
3644 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3646 gchar *from_filename;
3650 save_callback_args_t callback_args;
3652 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3654 /* don't write over an existing file. */
3655 /* this should've been already checked by our caller, just to be sure... */
3656 if (file_exists(fname)) {
3657 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3658 "%sCapture file: \"%s\" already exists!%s\n\n"
3659 "Please choose a different filename.",
3660 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3664 packet_range_process_init(range);
3666 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3667 /* We're not filtering packets, and we're saving it in the format
3668 it's already in, so we can just move or copy the raw data. */
3670 if (cf->is_tempfile) {
3671 /* The file being saved is a temporary file from a live
3672 capture, so it doesn't need to stay around under that name;
3673 first, try renaming the capture buffer file to the new name. */
3675 if (ws_rename(cf->filename, fname) == 0) {
3676 /* That succeeded - there's no need to copy the source file. */
3677 from_filename = NULL;
3680 if (errno == EXDEV) {
3681 /* They're on different file systems, so we have to copy the
3684 from_filename = cf->filename;
3686 /* The rename failed, but not because they're on different
3687 file systems - put up an error message. (Or should we
3688 just punt and try to copy? The only reason why I'd
3689 expect the rename to fail and the copy to succeed would
3690 be if we didn't have permission to remove the file from
3691 the temporary directory, and that might be fixable - but
3692 is it worth requiring the user to go off and fix it?) */
3693 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3694 file_rename_error_message(errno), fname);
3700 from_filename = cf->filename;
3703 /* It's a permanent file, so we should copy it, and not remove the
3706 from_filename = cf->filename;
3710 /* Copy the file, if we haven't moved it. */
3711 if (!copy_file_binary_mode(from_filename, fname))
3715 /* Either we're filtering packets, or we're saving in a different
3716 format; we can't do that by copying or moving the capture file,
3717 we have to do it by writing the packets out in Wiretap. */
3718 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3721 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3725 /* XXX - we let the user save a subset of the packets.
3727 If we do that, should we make that file the current file? If so,
3728 it means we can no longer get at the other packets. What does
3731 /* Iterate through the list of packets, processing the packets we were
3734 XXX - we've already called "packet_range_process_init(range)", but
3735 "process_specified_packets()" will do it again. Fortunately,
3736 that's harmless in this case, as we haven't done anything to
3737 "range" since we initialized it. */
3738 callback_args.pdh = pdh;
3739 callback_args.fname = fname;
3740 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3741 TRUE, save_packet, &callback_args)) {
3744 /* Completed successfully. */
3748 /* The user decided to abort the saving.
3749 XXX - remove the output file? */
3753 /* Error while saving. */
3754 wtap_dump_close(pdh, &err);
3758 if (!wtap_dump_close(pdh, &err)) {
3759 cf_close_failure_alert_box(fname, err);
3764 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3766 if (packet_range_process_all(range)) {
3767 /* We saved the entire capture, not just some packets from it.
3768 Open and read the file we saved it to.
3770 XXX - this is somewhat of a waste; we already have the
3771 packets, all this gets us is updated file type information
3772 (which we could just stuff into "cf"), and having the new
3773 file be the one we have opened and from which we're reading
3774 the data, and it means we have to spend time opening and
3775 reading the file, which could be a significant amount of
3776 time if the file is large. */
3777 cf->user_saved = TRUE;
3779 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3780 /* XXX - report errors if this fails?
3781 What should we return if it fails or is aborted? */
3783 switch (cf_read(cf, TRUE)) {
3787 /* Just because we got an error, that doesn't mean we were unable
3788 to read any of the file; we handle what we could get from the
3792 case CF_READ_ABORTED:
3793 /* The user bailed out of re-reading the capture file; the
3794 capture file has been closed - just return (without
3795 changing any menu settings; "cf_close()" set them
3796 correctly for the "no capture file open" state). */
3799 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3805 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3810 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3811 gboolean for_writing, int file_type)
3814 /* Wiretap error. */
3817 case WTAP_ERR_NOT_REGULAR_FILE:
3818 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3819 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3823 case WTAP_ERR_RANDOM_OPEN_PIPE:
3824 /* Seen only when opening a capture file for reading. */
3825 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3826 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3830 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3831 /* Seen only when opening a capture file for reading. */
3832 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3833 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3837 case WTAP_ERR_UNSUPPORTED:
3838 /* Seen only when opening a capture file for reading. */
3839 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3840 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3842 filename, err_info);
3846 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3847 /* Seen only when opening a capture file for writing. */
3848 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3849 "The file \"%s\" is a pipe, and %s capture files can't be "
3850 "written to a pipe.",
3851 filename, wtap_file_type_string(file_type));
3854 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3855 /* Seen only when opening a capture file for writing. */
3856 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3857 "Wireshark doesn't support writing capture files in that format.");
3860 case WTAP_ERR_UNSUPPORTED_ENCAP:
3862 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3863 "Wireshark can't save this capture in that format.");
3865 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3866 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3868 filename, err_info);
3873 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3875 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3876 "Wireshark can't save this capture in that format.");
3878 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3879 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3884 case WTAP_ERR_BAD_RECORD:
3885 /* Seen only when opening a capture file for reading. */
3886 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3887 "The file \"%s\" appears to be damaged or corrupt.\n"
3889 filename, err_info);
3893 case WTAP_ERR_CANT_OPEN:
3895 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3896 "The file \"%s\" could not be created for some unknown reason.",
3899 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3900 "The file \"%s\" could not be opened for some unknown reason.",
3905 case WTAP_ERR_SHORT_READ:
3906 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3907 "The file \"%s\" appears to have been cut short"
3908 " in the middle of a packet or other data.",
3912 case WTAP_ERR_SHORT_WRITE:
3913 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3914 "A full header couldn't be written to the file \"%s\".",
3918 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3919 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3920 "Gzip compression not supported by this file type.");
3923 case WTAP_ERR_DECOMPRESS:
3924 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3925 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
3926 "(%s)", filename, err_info);
3931 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3932 "The file \"%s\" could not be %s: %s.",
3934 for_writing ? "created" : "opened",
3935 wtap_strerror(err));
3940 open_failure_alert_box(filename, err, for_writing);
3945 file_rename_error_message(int err)
3948 static char errmsg_errno[1024+1];
3953 errmsg = "The path to the file \"%s\" doesn't exist.";
3957 errmsg = "You don't have permission to move the capture file to \"%s\".";
3961 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3962 "The file \"%%s\" could not be moved: %s.",
3963 wtap_strerror(err));
3964 errmsg = errmsg_errno;
3971 cf_write_failure_alert_box(const char *filename, int err)
3974 /* Wiretap error. */
3975 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3976 "An error occurred while writing to the file \"%s\": %s.",
3977 filename, wtap_strerror(err));
3980 write_failure_alert_box(filename, err);
3984 /* Check for write errors - if the file is being written to an NFS server,
3985 a write error may not show up until the file is closed, as NFS clients
3986 might not send writes to the server until the "write()" call finishes,
3987 so that the write may fail on the server but the "write()" may succeed. */
3989 cf_close_failure_alert_box(const char *filename, int err)
3992 /* Wiretap error. */
3995 case WTAP_ERR_CANT_CLOSE:
3996 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3997 "The file \"%s\" couldn't be closed for some unknown reason.",
4001 case WTAP_ERR_SHORT_WRITE:
4002 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4003 "Not all the packets could be written to the file \"%s\".",
4008 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4009 "An error occurred while closing the file \"%s\": %s.",
4010 filename, wtap_strerror(err));
4015 We assume that a close error from the OS is really a write error. */
4016 write_failure_alert_box(filename, err);
4020 /* Reload the current capture file. */
4022 cf_reload(capture_file *cf) {
4024 gboolean is_tempfile;
4027 /* If the file could be opened, "cf_open()" calls "cf_close()"
4028 to get rid of state for the old capture file before filling in state
4029 for the new capture file. "cf_close()" will remove the file if
4030 it's a temporary file; we don't want that to happen (for one thing,
4031 it'd prevent subsequent reopens from working). Remember whether it's
4032 a temporary file, mark it as not being a temporary file, and then
4033 reopen it as the type of file it was.
4035 Also, "cf_close()" will free "cf->filename", so we must make
4036 a copy of it first. */
4037 filename = g_strdup(cf->filename);
4038 is_tempfile = cf->is_tempfile;
4039 cf->is_tempfile = FALSE;
4040 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4041 switch (cf_read(cf, FALSE)) {
4045 /* Just because we got an error, that doesn't mean we were unable
4046 to read any of the file; we handle what we could get from the
4050 case CF_READ_ABORTED:
4051 /* The user bailed out of re-reading the capture file; the
4052 capture file has been closed - just free the capture file name
4053 string and return (without changing the last containing
4059 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4060 Instead, the file was left open, so we should restore "cf->is_tempfile"
4063 XXX - change the menu? Presumably "cf_open()" will do that;
4064 make sure it does! */
4065 cf->is_tempfile = is_tempfile;
4067 /* "cf_open()" made a copy of the file name we handed it, so
4068 we should free up our copy. */
4078 * indent-tabs-mode: nil
4081 * ex: set shiftwidth=2 tabstop=8 expandtab
4082 * :indentSize=2:tabSize=8:noTabs=true: