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 "progress_dlg.h"
65 #include <epan/prefs.h>
66 #include <epan/dfilter/dfilter.h>
67 #include <epan/epan_dissect.h>
69 #include <epan/dissectors/packet-data.h>
70 #include <epan/dissectors/packet-ber.h>
71 #include <epan/timestamp.h>
72 #include <epan/dfilter/dfilter-macro.h>
73 #include <wsutil/file_util.h>
74 #include <epan/strutil.h>
78 gboolean auto_scroll_live;
81 static nstime_t first_ts;
82 static nstime_t prev_dis_ts;
83 static guint32 cum_bytes = 0;
84 static gulong computed_elapsed;
86 static void cf_reset_state(capture_file *cf);
88 static int read_packet(capture_file *cf, dfilter_t *dfcode,
89 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
91 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
92 gboolean refilter, gboolean redissect);
94 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
96 static void match_subtree_text(proto_node *node, gpointer data);
97 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
99 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
101 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
103 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
105 static gboolean match_binary(capture_file *cf, frame_data *fdata,
107 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
109 static gboolean find_packet(capture_file *cf,
110 gboolean (*match_function)(capture_file *, frame_data *, void *),
113 static void cf_open_failure_alert_box(const char *filename, int err,
114 gchar *err_info, gboolean for_writing,
116 static const char *file_rename_error_message(int err);
117 static void cf_write_failure_alert_box(const char *filename, int err);
118 static void cf_close_failure_alert_box(const char *filename, int err);
119 #ifdef NEW_PACKET_LIST
120 static void ref_time_packets(capture_file *cf);
122 /* Update the progress bar this many times when reading a file. */
123 #define N_PROGBAR_UPDATES 100
124 /* We read around 200k/100ms domt update the progress bar more often than that */
125 #define MIN_QUANTUM 200000
126 #define MIN_NUMBER_OF_PACKET 1500
128 /* Number of "frame_data" structures per memory chunk.
129 XXX - is this the right number? */
130 #define FRAME_DATA_CHUNK_SIZE 1024
133 /* this callback mechanism should possibly be replaced by the g_signal_...() stuff (if I only would know how :-) */
135 cf_callback_t cb_fct;
137 } cf_callback_data_t;
139 static GList *cf_callbacks = NULL;
142 cf_callback_invoke(int event, gpointer data)
144 cf_callback_data_t *cb;
145 GList *cb_item = cf_callbacks;
147 /* there should be at least one interested */
148 g_assert(cb_item != NULL);
150 while(cb_item != NULL) {
152 cb->cb_fct(event, data, cb->user_data);
153 cb_item = g_list_next(cb_item);
159 cf_callback_add(cf_callback_t func, gpointer user_data)
161 cf_callback_data_t *cb;
163 cb = g_malloc(sizeof(cf_callback_data_t));
165 cb->user_data = user_data;
167 cf_callbacks = g_list_append(cf_callbacks, cb);
171 cf_callback_remove(cf_callback_t func)
173 cf_callback_data_t *cb;
174 GList *cb_item = cf_callbacks;
176 while(cb_item != NULL) {
178 if(cb->cb_fct == func) {
179 cf_callbacks = g_list_remove(cf_callbacks, cb);
183 cb_item = g_list_next(cb_item);
186 g_assert_not_reached();
190 cf_timestamp_auto_precision(capture_file *cf)
192 #ifdef NEW_PACKET_LIST
195 int prec = timestamp_get_precision();
198 /* don't try to get the file's precision if none is opened */
199 if(cf->state == FILE_CLOSED) {
203 /* if we are in auto mode, set precision of current file */
204 if(prec == TS_PREC_AUTO ||
205 prec == TS_PREC_AUTO_SEC ||
206 prec == TS_PREC_AUTO_DSEC ||
207 prec == TS_PREC_AUTO_CSEC ||
208 prec == TS_PREC_AUTO_MSEC ||
209 prec == TS_PREC_AUTO_USEC ||
210 prec == TS_PREC_AUTO_NSEC)
212 switch(wtap_file_tsprecision(cf->wth)) {
213 case(WTAP_FILE_TSPREC_SEC):
214 timestamp_set_precision(TS_PREC_AUTO_SEC);
216 case(WTAP_FILE_TSPREC_DSEC):
217 timestamp_set_precision(TS_PREC_AUTO_DSEC);
219 case(WTAP_FILE_TSPREC_CSEC):
220 timestamp_set_precision(TS_PREC_AUTO_CSEC);
222 case(WTAP_FILE_TSPREC_MSEC):
223 timestamp_set_precision(TS_PREC_AUTO_MSEC);
225 case(WTAP_FILE_TSPREC_USEC):
226 timestamp_set_precision(TS_PREC_AUTO_USEC);
228 case(WTAP_FILE_TSPREC_NSEC):
229 timestamp_set_precision(TS_PREC_AUTO_NSEC);
232 g_assert_not_reached();
235 #ifdef NEW_PACKET_LIST
236 /* Set the column widths of those columns that show the time in
237 "command-line-specified" format. */
238 for (i = 0; i < cf->cinfo.num_cols; i++) {
239 if (col_has_time_fmt(&cf->cinfo, i)) {
240 new_packet_list_resize_column(i);
247 cf_get_computed_elapsed(void)
249 return computed_elapsed;
252 static void reset_elapsed(void)
254 computed_elapsed = 0;
257 static void compute_elapsed(GTimeVal *start_time)
262 g_get_current_time(&time_now);
264 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
265 time_now.tv_usec - start_time->tv_usec;
267 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
271 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
276 wth = wtap_open_offline(fname, err, &err_info, TRUE);
280 /* The open succeeded. Close whatever capture file we had open,
281 and fill in the information for this file. */
284 /* Cleanup all data structures used for dissection. */
285 cleanup_dissection();
286 /* Initialize all data structures used for dissection. */
289 /* We're about to start reading the file. */
290 cf->state = FILE_READ_IN_PROGRESS;
295 /* Set the file name because we need it to set the follow stream filter.
296 XXX - is that still true? We need it for other reasons, though,
298 cf->filename = g_strdup(fname);
300 /* Indicate whether it's a permanent or temporary file. */
301 cf->is_tempfile = is_tempfile;
303 /* If it's a temporary capture buffer file, mark it as not saved. */
304 cf->user_saved = !is_tempfile;
308 cf->cd_t = wtap_file_type(cf->wth);
310 cf->displayed_count = 0;
311 cf->marked_count = 0;
312 cf->drops_known = FALSE;
314 cf->snap = wtap_snapshot_length(cf->wth);
316 /* Snapshot length not known. */
317 cf->has_snap = FALSE;
318 cf->snap = WTAP_MAX_PACKET_SIZE;
321 nstime_set_zero(&cf->elapsed_time);
322 nstime_set_unset(&first_ts);
323 nstime_set_unset(&prev_dis_ts);
325 #if GLIB_CHECK_VERSION(2,10,0)
327 /* memory chunks have been deprecated in favor of the slice allocator,
328 * which has been added in 2.10
330 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
332 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
334 g_assert(cf->plist_chunk);
337 #ifdef NEW_PACKET_LIST
338 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
339 cf_timestamp_auto_precision(cf);
341 new_packet_list_queue_draw();
343 /* change the time formats now, as we might have a new precision */
344 cf_change_time_formats(cf);
346 fileset_file_opened(fname);
348 if(cf->cd_t == WTAP_FILE_BER) {
349 /* tell the BER dissector the file name */
350 ber_set_filename(cf->filename);
356 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
362 * Reset the state for the currently closed file, but don't do the
363 * UI callbacks; this is for use in "cf_open()", where we don't
364 * want the UI to go from "file open" to "file closed" back to
365 * "file open", we want it to go from "old file open" to "new file
366 * open and being read".
369 cf_reset_state(capture_file *cf)
371 /* Die if we're in the middle of reading a file. */
372 g_assert(cf->state != FILE_READ_IN_PROGRESS);
378 /* We have no file open... */
379 if (cf->filename != NULL) {
380 /* If it's a temporary file, remove it. */
382 ws_unlink(cf->filename);
383 g_free(cf->filename);
386 /* ...which means we have nothing to save. */
387 cf->user_saved = FALSE;
389 #if GLIB_CHECK_VERSION(2,10,0)
390 if (cf->plist != NULL)
391 g_slice_free_chain(frame_data, cf->plist, next);
393 /* memory chunks have been deprecated in favor of the slice allocator,
394 * which has been added in 2.10
396 if (cf->plist_chunk != NULL) {
397 g_mem_chunk_destroy(cf->plist_chunk);
398 cf->plist_chunk = NULL;
401 if (cf->rfcode != NULL) {
402 dfilter_free(cf->rfcode);
406 cf->plist_end = NULL;
407 cf_unselect_packet(cf); /* nothing to select */
408 cf->first_displayed = NULL;
409 cf->last_displayed = NULL;
411 /* No frame selected, no field in that frame selected. */
412 cf->current_frame = NULL;
414 cf->finfo_selected = NULL;
416 /* Clear the packet list. */
417 #ifdef NEW_PACKET_LIST
418 new_packet_list_freeze();
419 new_packet_list_clear();
420 new_packet_list_thaw();
422 packet_list_freeze();
429 nstime_set_zero(&cf->elapsed_time);
431 reset_tap_listeners();
433 /* We have no file open. */
434 cf->state = FILE_CLOSED;
436 fileset_file_closed();
439 /* Reset everything to a pristine state */
441 cf_close(capture_file *cf)
443 /* do GUI things even if file is already closed,
444 * e.g. to cleanup things if a capture couldn't be started */
445 cf_callback_invoke(cf_cb_file_closing, cf);
447 /* close things, if not already closed before */
448 if(cf->state != FILE_CLOSED) {
449 color_filters_cleanup();
451 cleanup_dissection();
454 cf_callback_invoke(cf_cb_file_closed, cf);
457 /* an out of memory exception occured, wait for a user button press to exit */
458 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
463 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
467 progbar_val = (gfloat) file_pos / (gfloat) size;
468 if (progbar_val > 1.0) {
469 /* The file probably grew while we were reading it.
470 Update file size, and try again. */
471 size = wtap_file_size(cf->wth, NULL);
473 progbar_val = (gfloat) file_pos / (gfloat) size;
474 /* If it's still > 1, either "wtap_file_size()" failed (in which
475 case there's not much we can do about it), or the file
476 *shrank* (in which case there's not much we can do about
477 it); just clip the progress value at 1.0. */
478 if (progbar_val > 1.0f)
485 cf_read(capture_file *cf)
489 const gchar *name_ptr;
491 char errmsg_errno[1024+1];
493 progdlg_t *volatile progbar = NULL;
495 volatile gint64 size;
496 volatile float progbar_val;
498 gchar status_str[100];
499 volatile gint64 progbar_nextstep;
500 volatile gint64 progbar_quantum;
502 gboolean filtering_tap_listeners;
504 volatile int count = 0;
506 volatile int displayed_once = 0;
509 /* Compile the current display filter.
510 * We assume this will not fail since cf->dfilter is only set in
511 * cf_filter IFF the filter was valid.
515 dfilter_compile(cf->dfilter, &dfcode);
518 /* Do we have any tap listeners with filters? */
519 filtering_tap_listeners = have_filtering_tap_listeners();
521 /* Get the union of the flags for all tap listeners. */
522 tap_flags = union_of_tap_listener_flags();
526 reset_tap_listeners();
528 cf_callback_invoke(cf_cb_file_read_start, cf);
530 name_ptr = get_basename(cf->filename);
532 /* Find the size of the file. */
533 size = wtap_file_size(cf->wth, NULL);
535 /* Update the progress bar when it gets to this value. */
536 progbar_nextstep = 0;
537 /* When we reach the value that triggers a progress bar update,
538 bump that value by this amount. */
540 progbar_quantum = size/N_PROGBAR_UPDATES;
541 if (progbar_quantum < MIN_QUANTUM)
542 progbar_quantum = MIN_QUANTUM;
545 /* Progress so far. */
548 #ifdef NEW_PACKET_LIST
549 new_packet_list_freeze();
551 packet_list_freeze();
555 g_get_current_time(&start_time);
557 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
560 /* Create the progress bar if necessary.
561 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
563 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
564 progbar_val = calc_progbar_val( cf, size, data_offset);
565 progbar = delayed_create_progress_dlg("Loading", name_ptr,
566 TRUE, &stop_flag, &start_time, progbar_val);
569 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
570 when we update it, we have to run the GTK+ main loop to get it
571 to repaint what's pending, and doing so may involve an "ioctl()"
572 to see if there's any pending input from an X server, and doing
573 that for every packet can be costly, especially on a big file. */
574 if (data_offset >= progbar_nextstep) {
575 if (progbar != NULL) {
576 progbar_val = calc_progbar_val( cf, size, data_offset);
577 /* update the packet lists content on the first run or frequently on very large files */
578 /* (on smaller files the display update takes longer than reading the file) */
580 if (progbar_quantum > 500000 || displayed_once == 0) {
581 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
583 #ifdef NEW_PACKET_LIST
584 new_packet_list_thaw();
585 if (auto_scroll_live)
586 new_packet_list_moveto_end();
587 new_packet_list_freeze();
590 if (auto_scroll_live)
591 packet_list_moveto_end();
592 packet_list_freeze();
593 #endif /* NEW_PACKET_LIST */
596 #endif /* HAVE_LIBPCAP */
597 g_snprintf(status_str, sizeof(status_str),
598 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
599 data_offset / 1024, size / 1024);
600 update_progress_dlg(progbar, progbar_val, status_str);
602 progbar_nextstep += progbar_quantum;
607 /* Well, the user decided to abort the read. He/She will be warned and
608 it might be enough for him/her to work with the already loaded
610 This is especially true for very large capture files, where you don't
611 want to wait loading the whole file (which may last minutes or even
612 hours even on fast machines) just to see that it was the wrong file. */
616 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
618 CATCH(OutOfMemoryError) {
621 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
622 "%sOut Of Memory!%s\n"
624 "Sorry, but Wireshark has to terminate now!\n"
626 "Some infos / workarounds can be found at:\n"
627 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
628 simple_dialog_primary_start(), simple_dialog_primary_end());
629 /* we have to terminate, as we cannot recover from the memory error */
630 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
632 main_window_update();
633 /* XXX - how to avoid a busy wait? */
641 /* Cleanup and release all dfilter resources */
643 dfilter_free(dfcode);
646 /* We're done reading the file; destroy the progress bar if it was created. */
648 destroy_progress_dlg(progbar);
650 /* We're done reading sequentially through the file. */
651 cf->state = FILE_READ_DONE;
653 /* Close the sequential I/O side, to free up memory it requires. */
654 wtap_sequential_close(cf->wth);
656 /* Allow the protocol dissectors to free up memory that they
657 * don't need after the sequential run-through of the packets. */
658 postseq_cleanup_all_protocols();
660 /* compute the time it took to load the file */
661 compute_elapsed(&start_time);
663 /* Set the file encapsulation type now; we don't know what it is until
664 we've looked at all the packets, as we don't know until then whether
665 there's more than one type (and thus whether it's
666 WTAP_ENCAP_PER_PACKET). */
667 cf->lnk_t = wtap_file_encap(cf->wth);
669 cf->current_frame = cf->first_displayed;
672 #ifdef NEW_PACKET_LIST
673 new_packet_list_thaw();
678 cf_callback_invoke(cf_cb_file_read_finished, cf);
680 /* If we have any displayed packets to select, select the first of those
681 packets by making the first row the selected row. */
682 if (cf->first_displayed != NULL){
683 #ifdef NEW_PACKET_LIST
684 new_packet_list_select_first_row();
686 packet_list_select_row(0);
687 #endif /* NEW_PACKET_LIST */
691 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
692 "%sFile loading was cancelled!%s\n"
694 "The remaining packets in the file were discarded.\n"
696 "As a lot of packets from the original file will be missing,\n"
697 "remember to be careful when saving the current content to a file.\n",
698 simple_dialog_primary_start(), simple_dialog_primary_end());
699 return CF_READ_ERROR;
703 /* Put up a message box noting that the read failed somewhere along
704 the line. Don't throw out the stuff we managed to read, though,
708 case WTAP_ERR_UNSUPPORTED_ENCAP:
709 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
710 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
713 errmsg = errmsg_errno;
716 case WTAP_ERR_CANT_READ:
717 errmsg = "An attempt to read from the capture file failed for"
718 " some unknown reason.";
721 case WTAP_ERR_SHORT_READ:
722 errmsg = "The capture file appears to have been cut short"
723 " in the middle of a packet.";
726 case WTAP_ERR_BAD_RECORD:
727 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
728 "The capture file appears to be damaged or corrupt.\n(%s)",
731 errmsg = errmsg_errno;
735 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
736 "An error occurred while reading the"
737 " capture file: %s.", wtap_strerror(err));
738 errmsg = errmsg_errno;
741 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
742 return CF_READ_ERROR;
749 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
751 cf_status_t cf_status;
753 cf_status = cf_open(cf, fname, is_tempfile, err);
758 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
760 gint64 data_offset = 0;
762 volatile int newly_displayed_packets = 0;
764 gboolean filtering_tap_listeners;
766 volatile gboolean visible = FALSE;
768 /* Compile the current display filter.
769 * We assume this will not fail since cf->dfilter is only set in
770 * cf_filter IFF the filter was valid.
774 dfilter_compile(cf->dfilter, &dfcode);
777 /* Do we have any tap listeners with filters? */
778 filtering_tap_listeners = have_filtering_tap_listeners();
780 /* Get the union of the flags for all tap listeners. */
781 tap_flags = union_of_tap_listener_flags();
785 #ifdef NEW_PACKET_LIST
786 new_packet_list_check_end();
787 new_packet_list_freeze();
789 packet_list_check_end();
790 packet_list_freeze();
793 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
795 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
796 if (cf->state == FILE_READ_ABORTED) {
797 /* Well, the user decided to exit Wireshark. Break out of the
798 loop, and let the code below (which is called even if there
799 aren't any packets left to read) exit. */
803 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
804 data_offset) != -1) {
806 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 #ifdef NEW_PACKET_LIST
833 new_packet_list_thaw();
837 return CF_READ_ABORTED;
843 /* Cleanup and release all dfilter resources */
845 dfilter_free(dfcode);
848 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
849 cf->count, cf->state, *err);*/
851 #ifdef NEW_PACKET_LIST
852 new_packet_list_thaw();
854 /* XXX - this causes "flickering" of the list */
858 /* moving to the end of the packet list - if the user requested so and
859 we have some new packets. */
860 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
861 #ifdef NEW_PACKET_LIST
863 new_packet_list_moveto_end();
865 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
866 packet_list_thaw() is done, see bugzilla 1188 */
867 /* XXX - this cheats and looks inside the packet list to find the final
869 packet_list_moveto_end();
870 #endif /* NEW_PACKET_LIST */
872 if (cf->state == FILE_READ_ABORTED) {
873 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
874 so that our caller can kill off the capture child process;
875 this will cause an EOF on the pipe from the child, so
876 "cf_finish_tail()" will be called, and it will clean up
878 return CF_READ_ABORTED;
879 } else if (*err != 0) {
880 /* We got an error reading the capture file.
881 XXX - pop up a dialog box instead? */
882 g_warning("Error \"%s\" while reading: \"%s\"\n",
883 wtap_strerror(*err), cf->filename);
885 return CF_READ_ERROR;
891 cf_finish_tail(capture_file *cf, int *err)
896 gboolean filtering_tap_listeners;
899 /* Compile the current display filter.
900 * We assume this will not fail since cf->dfilter is only set in
901 * cf_filter IFF the filter was valid.
905 dfilter_compile(cf->dfilter, &dfcode);
908 /* Do we have any tap listeners with filters? */
909 filtering_tap_listeners = have_filtering_tap_listeners();
911 /* Get the union of the flags for all tap listeners. */
912 tap_flags = union_of_tap_listener_flags();
914 if(cf->wth == NULL) {
916 return CF_READ_ERROR;
919 #ifdef NEW_PACKET_LIST
920 new_packet_list_check_end();
921 new_packet_list_freeze();
923 packet_list_check_end();
924 packet_list_freeze();
927 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
928 if (cf->state == FILE_READ_ABORTED) {
929 /* Well, the user decided to abort the read. Break out of the
930 loop, and let the code below (which is called even if there
931 aren't any packets left to read) exit. */
934 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
937 /* Cleanup and release all dfilter resources */
939 dfilter_free(dfcode);
942 #ifdef NEW_PACKET_LIST
943 new_packet_list_thaw();
948 if (cf->state == FILE_READ_ABORTED) {
949 /* Well, the user decided to abort the read. We're only called
950 when the child capture process closes the pipe to us (meaning
951 it's probably exited), so we can just close the capture
952 file; we return CF_READ_ABORTED so our caller can do whatever
953 is appropriate when that happens. */
955 return CF_READ_ABORTED;
958 if (auto_scroll_live && cf->plist_end != NULL)
959 #ifdef NEW_PACKET_LIST
960 new_packet_list_moveto_end();
962 /* XXX - this cheats and looks inside the packet list to find the final
964 packet_list_moveto_end();
967 /* We're done reading sequentially through the file. */
968 cf->state = FILE_READ_DONE;
970 /* We're done reading sequentially through the file; close the
971 sequential I/O side, to free up memory it requires. */
972 wtap_sequential_close(cf->wth);
974 /* Allow the protocol dissectors to free up memory that they
975 * don't need after the sequential run-through of the packets. */
976 postseq_cleanup_all_protocols();
978 /* Set the file encapsulation type now; we don't know what it is until
979 we've looked at all the packets, as we don't know until then whether
980 there's more than one type (and thus whether it's
981 WTAP_ENCAP_PER_PACKET). */
982 cf->lnk_t = wtap_file_encap(cf->wth);
985 /* We got an error reading the capture file.
986 XXX - pop up a dialog box? */
987 return CF_READ_ERROR;
992 #endif /* HAVE_LIBPCAP */
995 cf_get_display_name(capture_file *cf)
997 const gchar *displayname;
999 /* Return a name to use in displays */
1000 if (!cf->is_tempfile) {
1001 /* Get the last component of the file name, and use that. */
1003 displayname = get_basename(cf->filename);
1005 displayname="(No file)";
1008 /* The file we read is a temporary file from a live capture;
1009 we don't mention its name. */
1010 displayname = "(Untitled)";
1015 /* XXX - use a macro instead? */
1017 cf_get_packet_count(capture_file *cf)
1022 /* XXX - use a macro instead? */
1024 cf_set_packet_count(capture_file *cf, int packet_count)
1026 cf->count = packet_count;
1029 /* XXX - use a macro instead? */
1031 cf_is_tempfile(capture_file *cf)
1033 return cf->is_tempfile;
1036 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1038 cf->is_tempfile = is_tempfile;
1042 /* XXX - use a macro instead? */
1043 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1045 cf->drops_known = drops_known;
1048 /* XXX - use a macro instead? */
1049 void cf_set_drops(capture_file *cf, guint32 drops)
1054 /* XXX - use a macro instead? */
1055 gboolean cf_get_drops_known(capture_file *cf)
1057 return cf->drops_known;
1060 /* XXX - use a macro instead? */
1061 guint32 cf_get_drops(capture_file *cf)
1066 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1068 cf->rfcode = rfcode;
1071 #ifdef NEW_PACKET_LIST
1073 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1074 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1076 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1078 gboolean add_to_packet_list)
1080 gboolean create_proto_tree = FALSE;
1085 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1087 /* just add some value here until we know if it is being displayed or not */
1088 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1090 /* If we don't have the time stamp of the first packet in the
1091 capture, it's because this is the first packet. Save the time
1092 stamp of this packet as the time stamp of the first packet. */
1093 if (nstime_is_unset(&first_ts)) {
1094 first_ts = fdata->abs_ts;
1096 /* if this frames is marked as a reference time frame, reset
1097 firstsec and firstusec to this frame */
1098 if(fdata->flags.ref_time){
1099 first_ts = fdata->abs_ts;
1102 /* If we don't have the time stamp of the previous displayed packet,
1103 it's because this is the first displayed packet. Save the time
1104 stamp of this packet as the time stamp of the previous displayed
1106 if (nstime_is_unset(&prev_dis_ts)) {
1107 prev_dis_ts = fdata->abs_ts;
1110 /* Get the time elapsed between the first packet and this packet. */
1111 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1113 /* If it's greater than the current elapsed time, set the elapsed time
1114 to it (we check for "greater than" so as not to be confused by
1115 time moving backwards). */
1116 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1117 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1118 cf->elapsed_time = fdata->rel_ts;
1121 /* Get the time elapsed between the previous displayed packet and
1123 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1126 + we have a display filter and are re-applying it;
1127 + we have tap listeners with filters;
1128 + we have tap listeners that require a protocol tree;
1130 allocate a protocol tree root node, so that we'll construct
1131 a protocol tree against which a filter expression can be
1133 if ((dfcode != NULL && refilter) ||
1134 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1135 create_proto_tree = TRUE;
1137 /* Dissect the frame. */
1138 epan_dissect_init(&edt, create_proto_tree, FALSE);
1140 if (dfcode != NULL && refilter) {
1141 epan_dissect_prime_dfilter(&edt, dfcode);
1144 tap_queue_init(&edt);
1145 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1146 tap_push_tapped_queue(&edt);
1148 /* If we have a display filter, apply it if we're refiltering, otherwise
1149 leave the "passed_dfilter" flag alone.
1151 If we don't have a display filter, set "passed_dfilter" to 1. */
1152 if (dfcode != NULL) {
1154 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1157 fdata->flags.passed_dfilter = 1;
1159 if (add_to_packet_list) {
1160 /* We fill the needed columns from new_packet_list */
1161 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1164 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1166 /* This frame either passed the display filter list or is marked as
1167 a time reference frame. All time reference frames are displayed
1168 even if they dont pass the display filter */
1169 if(fdata->flags.ref_time){
1170 /* if this was a TIME REF frame we should reset the cul bytes field */
1171 cum_bytes = fdata->pkt_len;
1172 fdata->cum_bytes = cum_bytes;
1174 /* increase cum_bytes with this packets length */
1175 cum_bytes += fdata->pkt_len;
1178 /* If we haven't yet seen the first frame, this is it.
1180 XXX - we must do this before we add the row to the display,
1181 as, if the display's GtkCList's selection mode is
1182 GTK_SELECTION_BROWSE, when the first entry is added to it,
1183 "cf_select_packet()" will be called, and it will fetch the row
1184 data for the 0th row, and will get a null pointer rather than
1185 "fdata", as "gtk_clist_append()" won't yet have returned and
1186 thus "gtk_clist_set_row_data()" won't yet have been called.
1188 We thus need to leave behind bread crumbs so that
1189 "cf_select_packet()" can find this frame. See the comment
1190 in "cf_select_packet()". */
1191 if (cf->first_displayed == NULL)
1192 cf->first_displayed = fdata;
1194 /* This is the last frame we've seen so far. */
1195 cf->last_displayed = fdata;
1197 /* Set the time of the previous displayed frame to the time of this
1199 prev_dis_ts = fdata->abs_ts;
1201 cf->displayed_count++;
1204 epan_dissect_cleanup(&edt);
1211 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1212 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1214 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1216 gboolean add_to_packet_list _U_)
1218 gboolean create_proto_tree = FALSE;
1225 /* just add some value here until we know if it is being displayed or not */
1226 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1228 /* If we don't have the time stamp of the first packet in the
1229 capture, it's because this is the first packet. Save the time
1230 stamp of this packet as the time stamp of the first packet. */
1231 if (nstime_is_unset(&first_ts)) {
1232 first_ts = fdata->abs_ts;
1234 /* if this frames is marked as a reference time frame, reset
1235 firstsec and firstusec to this frame */
1236 if(fdata->flags.ref_time){
1237 first_ts = fdata->abs_ts;
1240 /* If we don't have the time stamp of the previous displayed packet,
1241 it's because this is the first displayed packet. Save the time
1242 stamp of this packet as the time stamp of the previous displayed
1244 if (nstime_is_unset(&prev_dis_ts)) {
1245 prev_dis_ts = fdata->abs_ts;
1248 /* Get the time elapsed between the first packet and this packet. */
1249 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1251 /* If it's greater than the current elapsed time, set the elapsed time
1252 to it (we check for "greater than" so as not to be confused by
1253 time moving backwards). */
1254 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1255 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1256 cf->elapsed_time = fdata->rel_ts;
1259 /* Get the time elapsed between the previous displayed packet and
1261 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1265 we have a display filter and are re-applying it;
1267 we have a list of color filters;
1269 we have tap listeners with filters;
1271 we have tap listeners that require a protocol tree;
1273 we have custom columns;
1275 allocate a protocol tree root node, so that we'll construct
1276 a protocol tree against which a filter expression can be
1278 if ((dfcode != NULL && refilter) ||
1279 color_filters_used() ||
1280 have_custom_cols(cinfo) ||
1281 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1282 create_proto_tree = TRUE;
1284 /* Dissect the frame. */
1285 epan_dissect_init(&edt, create_proto_tree, FALSE);
1287 if (dfcode != NULL && refilter) {
1288 epan_dissect_prime_dfilter(&edt, dfcode);
1291 /* prepare color filters */
1292 color_filters_prime_edt(&edt);
1293 col_custom_prime_edt(&edt, cinfo);
1295 tap_queue_init(&edt);
1296 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1297 tap_push_tapped_queue(&edt);
1299 /* If we have a display filter, apply it if we're refiltering, otherwise
1300 leave the "passed_dfilter" flag alone.
1302 If we don't have a display filter, set "passed_dfilter" to 1. */
1303 if (dfcode != NULL) {
1305 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1308 fdata->flags.passed_dfilter = 1;
1310 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1312 /* This frame either passed the display filter list or is marked as
1313 a time reference frame. All time reference frames are displayed
1314 even if they dont pass the display filter */
1315 if(fdata->flags.ref_time){
1316 /* if this was a TIME REF frame we should reset the cul bytes field */
1317 cum_bytes = fdata->pkt_len;
1318 fdata->cum_bytes = cum_bytes;
1320 /* increase cum_bytes with this packets length */
1321 cum_bytes += fdata->pkt_len;
1324 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
1326 /* If we haven't yet seen the first frame, this is it.
1328 XXX - we must do this before we add the row to the display,
1329 as, if the display's GtkCList's selection mode is
1330 GTK_SELECTION_BROWSE, when the first entry is added to it,
1331 "cf_select_packet()" will be called, and it will fetch the row
1332 data for the 0th row, and will get a null pointer rather than
1333 "fdata", as "gtk_clist_append()" won't yet have returned and
1334 thus "gtk_clist_set_row_data()" won't yet have been called.
1336 We thus need to leave behind bread crumbs so that
1337 "cf_select_packet()" can find this frame. See the comment
1338 in "cf_select_packet()". */
1339 if (cf->first_displayed == NULL)
1340 cf->first_displayed = fdata;
1342 /* This is the last frame we've seen so far. */
1343 cf->last_displayed = fdata;
1345 row = packet_list_append(cinfo->col_data, fdata);
1347 /* colorize packet: first apply color filters
1348 * then if packet is marked, use preferences to overwrite color
1349 * we do both to make sure that when a packet gets un-marked, the
1350 * color will be correctly set (fixes bug 2038)
1352 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1353 if (fdata->flags.marked) {
1354 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1357 /* Set the time of the previous displayed frame to the time of this
1359 prev_dis_ts = fdata->abs_ts;
1361 cf->displayed_count++;
1364 epan_dissect_cleanup(&edt);
1369 /* read in a new packet */
1370 /* returns the row of the new packet in the packet list or -1 if not displayed */
1372 read_packet(capture_file *cf, dfilter_t *dfcode,
1373 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1375 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1376 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1377 const guchar *buf = wtap_buf_ptr(cf->wth);
1380 frame_data *plist_end;
1383 /* Allocate the next list entry, and add it to the list.
1384 * memory chunks have been deprecated in favor of the slice allocator,
1385 * which has been added in 2.10
1387 #if GLIB_CHECK_VERSION(2,10,0)
1388 fdata = g_slice_new(frame_data);
1390 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1396 fdata->pkt_len = phdr->len;
1397 fdata->cap_len = phdr->caplen;
1398 fdata->file_off = offset;
1399 /* To save some memory, we coarcese it into a gint8 */
1400 g_assert(phdr->pkt_encap <= G_MAXINT8);
1401 fdata->lnk_t = (gint8) phdr->pkt_encap;
1402 fdata->abs_ts.secs = phdr->ts.secs;
1403 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1404 fdata->flags.encoding = CHAR_ASCII;
1405 fdata->flags.visited = 0;
1406 fdata->flags.marked = 0;
1407 fdata->flags.ref_time = 0;
1408 fdata->color_filter = NULL;
1409 #ifdef NEW_PACKET_LIST
1410 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
1411 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
1414 if (cf->plist_end != NULL)
1415 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &cf->plist_end->abs_ts);
1417 nstime_set_zero(&fdata->del_cap_ts);
1422 epan_dissect_init(&edt, TRUE, FALSE);
1423 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1424 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1425 passed = dfilter_apply_edt(cf->rfcode, &edt);
1426 epan_dissect_cleanup(&edt);
1430 plist_end = cf->plist_end;
1431 fdata->prev = plist_end;
1432 if (plist_end != NULL)
1433 plist_end->next = fdata;
1436 cf->plist_end = fdata;
1439 cf->f_datalen = offset + phdr->caplen;
1440 fdata->num = cf->count;
1441 if (!cf->redissecting) {
1442 row = add_packet_to_packet_list(fdata, cf, dfcode,
1443 filtering_tap_listeners, tap_flags,
1444 pseudo_header, buf, TRUE, TRUE);
1447 /* XXX - if we didn't have read filters, or if we could avoid
1448 allocating the "frame_data" structure until we knew whether
1449 the frame passed the read filter, we could use a G_ALLOC_ONLY
1452 ...but, at least in one test I did, where I just made the chunk
1453 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1454 seem to save a noticeable amount of time or space. */
1455 #if GLIB_CHECK_VERSION(2,10,0)
1456 /* memory chunks have been deprecated in favor of the slice allocator,
1457 * which has been added in 2.10
1459 g_slice_free(frame_data,fdata);
1461 g_mem_chunk_free(cf->plist_chunk, fdata);
1469 cf_merge_files(char **out_filenamep, int in_file_count,
1470 char *const *in_filenames, int file_type, gboolean do_append)
1472 merge_in_file_t *in_files;
1478 int open_err, read_err, write_err, close_err;
1482 char errmsg_errno[1024+1];
1484 gboolean got_read_error = FALSE, got_write_error = FALSE;
1486 progdlg_t *progbar = NULL;
1488 gint64 f_len, file_pos;
1490 GTimeVal start_time;
1491 gchar status_str[100];
1492 gint64 progbar_nextstep;
1493 gint64 progbar_quantum;
1495 /* open the input files */
1496 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1497 &open_err, &err_info, &err_fileno)) {
1499 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1504 if (*out_filenamep != NULL) {
1505 out_filename = *out_filenamep;
1506 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1510 out_fd = create_tempfile(&tmpname, "wireshark");
1513 out_filename = g_strdup(tmpname);
1514 *out_filenamep = out_filename;
1518 merge_close_in_files(in_file_count, in_files);
1520 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1524 pdh = wtap_dump_fdopen(out_fd, file_type,
1525 merge_select_frame_type(in_file_count, in_files),
1526 merge_max_snapshot_length(in_file_count, in_files),
1527 FALSE /* compressed */, &open_err);
1530 merge_close_in_files(in_file_count, in_files);
1532 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1537 /* Get the sum of the sizes of all the files. */
1539 for (i = 0; i < in_file_count; i++)
1540 f_len += in_files[i].size;
1542 /* Update the progress bar when it gets to this value. */
1543 progbar_nextstep = 0;
1544 /* When we reach the value that triggers a progress bar update,
1545 bump that value by this amount. */
1546 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1547 /* Progress so far. */
1551 g_get_current_time(&start_time);
1553 /* do the merge (or append) */
1556 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1559 wth = merge_read_packet(in_file_count, in_files, &read_err,
1563 got_read_error = TRUE;
1567 /* Get the sum of the data offsets in all of the files. */
1569 for (i = 0; i < in_file_count; i++)
1570 data_offset += in_files[i].data_offset;
1572 /* Create the progress bar if necessary.
1573 We check on every iteration of the loop, so that it takes no
1574 longer than the standard time to create it (otherwise, for a
1575 large file, we might take considerably longer than that standard
1576 time in order to get to the next progress bar step). */
1577 if (progbar == NULL) {
1578 progbar = delayed_create_progress_dlg("Merging", "files",
1579 FALSE, &stop_flag, &start_time, progbar_val);
1582 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1583 when we update it, we have to run the GTK+ main loop to get it
1584 to repaint what's pending, and doing so may involve an "ioctl()"
1585 to see if there's any pending input from an X server, and doing
1586 that for every packet can be costly, especially on a big file. */
1587 if (data_offset >= progbar_nextstep) {
1588 /* Get the sum of the seek positions in all of the files. */
1590 for (i = 0; i < in_file_count; i++)
1591 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1592 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1593 if (progbar_val > 1.0f) {
1594 /* Some file probably grew while we were reading it.
1595 That "shouldn't happen", so we'll just clip the progress
1599 if (progbar != NULL) {
1600 g_snprintf(status_str, sizeof(status_str),
1601 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1602 file_pos / 1024, f_len / 1024);
1603 update_progress_dlg(progbar, progbar_val, status_str);
1605 progbar_nextstep += progbar_quantum;
1609 /* Well, the user decided to abort the merge. */
1613 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1614 wtap_buf_ptr(wth), &write_err)) {
1615 got_write_error = TRUE;
1620 /* We're done merging the files; destroy the progress bar if it was created. */
1621 if (progbar != NULL)
1622 destroy_progress_dlg(progbar);
1624 merge_close_in_files(in_file_count, in_files);
1625 if (!got_read_error && !got_write_error) {
1626 if (!wtap_dump_close(pdh, &write_err))
1627 got_write_error = TRUE;
1629 wtap_dump_close(pdh, &close_err);
1631 if (got_read_error) {
1633 * Find the file on which we got the error, and report the error.
1635 for (i = 0; i < in_file_count; i++) {
1636 if (in_files[i].state == GOT_ERROR) {
1637 /* Put up a message box noting that a read failed somewhere along
1641 case WTAP_ERR_UNSUPPORTED_ENCAP:
1642 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1643 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1646 errmsg = errmsg_errno;
1649 case WTAP_ERR_CANT_READ:
1650 errmsg = "An attempt to read from the capture file %s failed for"
1651 " some unknown reason.";
1654 case WTAP_ERR_SHORT_READ:
1655 errmsg = "The capture file %s appears to have been cut short"
1656 " in the middle of a packet.";
1659 case WTAP_ERR_BAD_RECORD:
1660 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1661 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1664 errmsg = errmsg_errno;
1668 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1669 "An error occurred while reading the"
1670 " capture file %%s: %s.", wtap_strerror(read_err));
1671 errmsg = errmsg_errno;
1674 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1679 if (got_write_error) {
1680 /* Put up an alert box for the write error. */
1681 cf_write_failure_alert_box(out_filename, write_err);
1684 if (got_read_error || got_write_error || stop_flag) {
1685 /* Callers aren't expected to treat an error or an explicit abort
1686 differently - we put up error dialogs ourselves, so they don't
1694 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1696 const char *filter_new = dftext ? dftext : "";
1697 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1700 /* if new filter equals old one, do nothing unless told to do so */
1701 if (!force && strcmp(filter_new, filter_old) == 0) {
1707 if (dftext == NULL) {
1708 /* The new filter is an empty filter (i.e., display all packets).
1709 * so leave dfcode==NULL
1713 * We have a filter; make a copy of it (as we'll be saving it),
1714 * and try to compile it.
1716 dftext = g_strdup(dftext);
1717 if (!dfilter_compile(dftext, &dfcode)) {
1718 /* The attempt failed; report an error. */
1719 gchar *safe_dftext = simple_dialog_format_message(dftext);
1720 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1722 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1725 "The following display filter isn't a valid display filter:\n%s\n"
1726 "See the help for a description of the display filter syntax.",
1727 simple_dialog_primary_start(), safe_dfilter_error_msg,
1728 simple_dialog_primary_end(), safe_dftext);
1729 g_free(safe_dfilter_error_msg);
1730 g_free(safe_dftext);
1736 if (dfcode == NULL) {
1737 /* Yes - free the filter text, and set it to null. */
1743 /* We have a valid filter. Replace the current filter. */
1744 g_free(cf->dfilter);
1745 cf->dfilter = dftext;
1747 /* Now rescan the packet list, applying the new filter, but not
1748 throwing away information constructed on a previous pass. */
1749 if (dftext == NULL) {
1750 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1752 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1755 /* Cleanup and release all dfilter resources */
1756 if (dfcode != NULL){
1757 dfilter_free(dfcode);
1763 cf_colorize_packets(capture_file *cf)
1765 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1769 cf_reftime_packets(capture_file *cf)
1772 #ifdef NEW_PACKET_LIST
1773 ref_time_packets(cf);
1775 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1780 cf_redissect_packets(capture_file *cf)
1782 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1785 /* Rescan the list of packets, reconstructing the CList.
1787 "action" describes why we're doing this; it's used in the progress
1790 "action_item" describes what we're doing; it's used in the progress
1793 "refilter" is TRUE if we need to re-evaluate the filter expression.
1795 "redissect" is TRUE if we need to make the dissectors reconstruct
1796 any state information they have (because a preference that affects
1797 some dissector has changed, meaning some dissector might construct
1798 its state differently from the way it was constructed the last time). */
1800 /* Rescan packets with "old" packet list */
1801 #ifndef NEW_PACKET_LIST
1803 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1804 gboolean refilter, gboolean redissect)
1807 progdlg_t *progbar = NULL;
1812 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1813 int selected_row, prev_row, preceding_row, following_row;
1814 gboolean selected_frame_seen;
1817 GTimeVal start_time;
1818 gchar status_str[100];
1819 int progbar_nextstep;
1820 int progbar_quantum;
1822 gboolean filtering_tap_listeners;
1824 gboolean add_to_packet_list = TRUE;
1826 /* Compile the current display filter.
1827 * We assume this will not fail since cf->dfilter is only set in
1828 * cf_filter IFF the filter was valid.
1832 dfilter_compile(cf->dfilter, &dfcode);
1835 /* Do we have any tap listeners with filters? */
1836 filtering_tap_listeners = have_filtering_tap_listeners();
1838 /* Get the union of the flags for all tap listeners. */
1839 tap_flags = union_of_tap_listener_flags();
1842 reset_tap_listeners();
1843 /* Which frame, if any, is the currently selected frame?
1844 XXX - should the selected frame or the focus frame be the "current"
1845 frame, that frame being the one from which "Find Frame" searches
1847 selected_frame = cf->current_frame;
1849 /* We don't yet know what row that frame will be on, if any, after we
1850 rebuild the clist, however. */
1853 /* Freeze the packet list while we redo it, so we don't get any
1854 screen updates while it happens. */
1855 packet_list_freeze();
1858 packet_list_clear();
1861 /* We need to re-initialize all the state information that protocols
1862 keep, because some preference that controls a dissector has changed,
1863 which might cause the state information to be constructed differently
1864 by that dissector. */
1866 /* We might receive new packets while redissecting, and we don't
1867 want to dissect those before their time. */
1868 cf->redissecting = TRUE;
1870 /* Cleanup all data structures used for dissection. */
1871 cleanup_dissection();
1872 /* Initialize all data structures used for dissection. */
1877 /* We don't yet know which will be the first and last frames displayed. */
1878 cf->first_displayed = NULL;
1879 cf->last_displayed = NULL;
1883 /* We currently don't display any packets */
1884 cf->displayed_count = 0;
1886 /* Iterate through the list of frames. Call a routine for each frame
1887 to check whether it should be displayed and, if so, add it to
1888 the display list. */
1889 nstime_set_unset(&first_ts);
1890 nstime_set_unset(&prev_dis_ts);
1892 /* Update the progress bar when it gets to this value. */
1893 progbar_nextstep = 0;
1894 /* When we reach the value that triggers a progress bar update,
1895 bump that value by this amount. */
1896 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1897 /* Count of packets at which we've looked. */
1899 /* Progress so far. */
1903 g_get_current_time(&start_time);
1905 row = -1; /* no previous row yet */
1910 preceding_frame = NULL;
1912 following_frame = NULL;
1914 selected_frame_seen = FALSE;
1916 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1917 /* Create the progress bar if necessary.
1918 We check on every iteration of the loop, so that it takes no
1919 longer than the standard time to create it (otherwise, for a
1920 large file, we might take considerably longer than that standard
1921 time in order to get to the next progress bar step). */
1922 if (progbar == NULL)
1923 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1924 &stop_flag, &start_time,
1927 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1928 when we update it, we have to run the GTK+ main loop to get it
1929 to repaint what's pending, and doing so may involve an "ioctl()"
1930 to see if there's any pending input from an X server, and doing
1931 that for every packet can be costly, especially on a big file. */
1932 if (count >= progbar_nextstep) {
1933 /* let's not divide by zero. I should never be started
1934 * with count == 0, so let's assert that
1936 g_assert(cf->count > 0);
1937 progbar_val = (gfloat) count / cf->count;
1939 if (progbar != NULL) {
1940 g_snprintf(status_str, sizeof(status_str),
1941 "%4u of %u frames", count, cf->count);
1942 update_progress_dlg(progbar, progbar_val, status_str);
1945 progbar_nextstep += progbar_quantum;
1949 /* Well, the user decided to abort the filtering. Just stop.
1951 XXX - go back to the previous filter? Users probably just
1952 want not to wait for a filtering operation to finish;
1953 unless we cancel by having no filter, reverting to the
1954 previous filter will probably be even more expensive than
1955 continuing the filtering, as it involves going back to the
1956 beginning and filtering, and even with no filter we currently
1957 have to re-generate the entire clist, which is also expensive.
1959 I'm not sure what Network Monitor does, but it doesn't appear
1960 to give you an unfiltered display if you cancel. */
1967 /* Since all state for the frame was destroyed, mark the frame
1968 * as not visited, free the GSList referring to the state
1969 * data (the per-frame data itself was freed by
1970 * "init_dissection()"), and null out the GSList pointer.
1972 fdata->flags.visited = 0;
1973 frame_data_cleanup(fdata);
1976 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1977 cf->pd, fdata->cap_len, &err, &err_info)) {
1978 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1979 cf_read_error_message(err, err_info), cf->filename);
1983 /* If the previous frame is displayed, and we haven't yet seen the
1984 selected frame, remember that frame - it's the closest one we've
1985 yet seen before the selected frame. */
1986 if (prev_row != -1 && !selected_frame_seen) {
1987 preceding_row = prev_row;
1988 preceding_frame = prev_frame;
1990 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1991 tap_flags, &cf->pseudo_header, cf->pd,
1993 add_to_packet_list);
1995 /* If this frame is displayed, and this is the first frame we've
1996 seen displayed after the selected frame, remember this frame -
1997 it's the closest one we've yet seen at or after the selected
1999 if (row != -1 && selected_frame_seen && following_row == -1) {
2000 following_row = row;
2001 following_frame = fdata;
2003 if (fdata == selected_frame) {
2005 selected_frame_seen = TRUE;
2008 /* Remember this row/frame - it'll be the previous row/frame
2009 on the next pass through the loop. */
2014 /* We are done redissecting the packet list. */
2015 cf->redissecting = FALSE;
2018 /* Clear out what remains of the visited flags and per-frame data
2021 XXX - that may cause various forms of bogosity when dissecting
2022 these frames, as they won't have been seen by this sequential
2023 pass, but the only alternative I see is to keep scanning them
2024 even though the user requested that the scan stop, and that
2025 would leave the user stuck with an Wireshark grinding on
2026 until it finishes. Should we just stick them with that? */
2027 for (; fdata != NULL; fdata = fdata->next) {
2028 fdata->flags.visited = 0;
2029 frame_data_cleanup(fdata);
2033 /* We're done filtering the packets; destroy the progress bar if it
2035 if (progbar != NULL)
2036 destroy_progress_dlg(progbar);
2038 /* Unfreeze the packet list. */
2041 if (selected_row == -1) {
2042 /* The selected frame didn't pass the filter. */
2043 if (selected_frame == NULL) {
2044 /* That's because there *was* no selected frame. Make the first
2045 displayed frame the current frame. */
2048 /* Find the nearest displayed frame to the selected frame (whether
2049 it's before or after that frame) and make that the current frame.
2050 If the next and previous displayed frames are equidistant from the
2051 selected frame, choose the next one. */
2052 g_assert(following_frame == NULL ||
2053 following_frame->num >= selected_frame->num);
2054 g_assert(preceding_frame == NULL ||
2055 preceding_frame->num <= selected_frame->num);
2056 if (following_frame == NULL) {
2057 /* No frame after the selected frame passed the filter, so we
2058 have to select the last displayed frame before the selected
2060 selected_row = preceding_row;
2061 } else if (preceding_frame == NULL) {
2062 /* No frame before the selected frame passed the filter, so we
2063 have to select the first displayed frame after the selected
2065 selected_row = following_row;
2067 /* Frames before and after the selected frame passed the filter, so
2068 we'll select the previous frame */
2069 selected_row = preceding_row;
2074 if (selected_row == -1) {
2075 /* There are no frames displayed at all. */
2076 cf_unselect_packet(cf);
2078 /* Either the frame that was selected passed the filter, or we've
2079 found the nearest displayed frame to that frame. Select it, make
2080 it the focus row, and make it visible. */
2081 if (selected_row == 0) {
2082 /* Set to invalid to force update of packet list and packet details */
2083 cf->current_row = -1;
2085 packet_list_set_selected_row(selected_row);
2088 /* Cleanup and release all dfilter resources */
2089 if (dfcode != NULL){
2090 dfilter_free(dfcode);
2097 rescan_packets(capture_file *cf, const char *action, const char *action_item,
2098 gboolean refilter, gboolean redissect)
2100 /* Rescan packets new packet list */
2102 progdlg_t *progbar = NULL;
2107 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
2108 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
2109 gboolean selected_frame_seen;
2112 GTimeVal start_time;
2113 gchar status_str[100];
2114 int progbar_nextstep;
2115 int progbar_quantum;
2117 gboolean filtering_tap_listeners;
2119 gboolean add_to_packet_list = FALSE;
2121 /* Compile the current display filter.
2122 * We assume this will not fail since cf->dfilter is only set in
2123 * cf_filter IFF the filter was valid.
2127 dfilter_compile(cf->dfilter, &dfcode);
2130 /* Do we have any tap listeners with filters? */
2131 filtering_tap_listeners = have_filtering_tap_listeners();
2133 /* Get the union of the flags for all tap listeners. */
2134 tap_flags = union_of_tap_listener_flags();
2137 reset_tap_listeners();
2138 /* Which frame, if any, is the currently selected frame?
2139 XXX - should the selected frame or the focus frame be the "current"
2140 frame, that frame being the one from which "Find Frame" searches
2142 selected_frame = cf->current_frame;
2144 /* Mark frane num as not found */
2145 selected_frame_num = -1;
2147 /* Freeze the packet list while we redo it, so we don't get any
2148 screen updates while it happens. */
2149 new_packet_list_freeze();
2152 /* We need to re-initialize all the state information that protocols
2153 keep, because some preference that controls a dissector has changed,
2154 which might cause the state information to be constructed differently
2155 by that dissector. */
2157 /* We might receive new packets while redissecting, and we don't
2158 want to dissect those before their time. */
2159 cf->redissecting = TRUE;
2161 /* Cleanup all data structures used for dissection. */
2162 cleanup_dissection();
2163 /* Initialize all data structures used for dissection. */
2166 /* We need to redissect the packets so we have to discard our old
2167 * packet list store. */
2168 new_packet_list_clear();
2169 add_to_packet_list = TRUE;
2172 /* We don't yet know which will be the first and last frames displayed. */
2173 cf->first_displayed = NULL;
2174 cf->last_displayed = NULL;
2178 /* We currently don't display any packets */
2179 cf->displayed_count = 0;
2181 /* Iterate through the list of frames. Call a routine for each frame
2182 to check whether it should be displayed and, if so, add it to
2183 the display list. */
2184 nstime_set_unset(&first_ts);
2185 nstime_set_unset(&prev_dis_ts);
2187 /* Update the progress bar when it gets to this value. */
2188 progbar_nextstep = 0;
2189 /* When we reach the value that triggers a progress bar update,
2190 bump that value by this amount. */
2191 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2192 /* Count of packets at which we've looked. */
2194 /* Progress so far. */
2198 g_get_current_time(&start_time);
2200 /* no previous row yet */
2202 prev_frame_num = -1;
2205 preceding_frame_num = -1;
2206 preceding_frame = NULL;
2207 following_frame_num = -1;
2208 following_frame = NULL;
2210 selected_frame_seen = FALSE;
2212 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2213 /* Create the progress bar if necessary.
2214 We check on every iteration of the loop, so that it takes no
2215 longer than the standard time to create it (otherwise, for a
2216 large file, we might take considerably longer than that standard
2217 time in order to get to the next progress bar step). */
2218 if (progbar == NULL)
2219 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
2220 &stop_flag, &start_time,
2223 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2224 when we update it, we have to run the GTK+ main loop to get it
2225 to repaint what's pending, and doing so may involve an "ioctl()"
2226 to see if there's any pending input from an X server, and doing
2227 that for every packet can be costly, especially on a big file. */
2228 if (count >= progbar_nextstep) {
2229 /* let's not divide by zero. I should never be started
2230 * with count == 0, so let's assert that
2232 g_assert(cf->count > 0);
2233 progbar_val = (gfloat) count / cf->count;
2235 if (progbar != NULL) {
2236 g_snprintf(status_str, sizeof(status_str),
2237 "%4u of %u frames", count, cf->count);
2238 update_progress_dlg(progbar, progbar_val, status_str);
2241 progbar_nextstep += progbar_quantum;
2245 /* Well, the user decided to abort the filtering. Just stop.
2247 XXX - go back to the previous filter? Users probably just
2248 want not to wait for a filtering operation to finish;
2249 unless we cancel by having no filter, reverting to the
2250 previous filter will probably be even more expensive than
2251 continuing the filtering, as it involves going back to the
2252 beginning and filtering, and even with no filter we currently
2253 have to re-generate the entire clist, which is also expensive.
2255 I'm not sure what Network Monitor does, but it doesn't appear
2256 to give you an unfiltered display if you cancel. */
2263 /* Since all state for the frame was destroyed, mark the frame
2264 * as not visited, free the GSList referring to the state
2265 * data (the per-frame data itself was freed by
2266 * "init_dissection()"), and null out the GSList pointer. */
2267 fdata->flags.visited = 0;
2268 frame_data_cleanup(fdata);
2270 /* cleanup_dissection() calls se_free_all();
2271 * And after that fdata->col_text (which is allocated using se_alloc0())
2272 * no longer points to valid memory.
2274 fdata->col_text_len = se_alloc0(sizeof(fdata->col_text_len) * (cf->cinfo.num_cols));
2275 fdata->col_text = se_alloc0(sizeof(fdata->col_text) * (cf->cinfo.num_cols));
2278 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
2279 cf->pd, fdata->cap_len, &err, &err_info)) {
2280 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2281 cf_read_error_message(err, err_info), cf->filename);
2285 /* If the previous frame is displayed, and we haven't yet seen the
2286 selected frame, remember that frame - it's the closest one we've
2287 yet seen before the selected frame. */
2288 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
2289 preceding_frame_num = prev_frame_num;
2290 preceding_frame = prev_frame;
2292 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
2293 tap_flags, &cf->pseudo_header, cf->pd,
2295 add_to_packet_list);
2297 /* If this frame is displayed, and this is the first frame we've
2298 seen displayed after the selected frame, remember this frame -
2299 it's the closest one we've yet seen at or after the selected
2301 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2302 following_frame_num = fdata->num;
2303 following_frame = fdata;
2305 if (fdata == selected_frame) {
2306 selected_frame_seen = TRUE;
2307 if (fdata->flags.passed_dfilter)
2308 selected_frame_num = fdata->num;
2311 /* Remember this frame - it'll be the previous frame
2312 on the next pass through the loop. */
2313 prev_frame_num = fdata->num;
2317 /* We are done redissecting the packet list. */
2318 cf->redissecting = FALSE;
2321 /* Clear out what remains of the visited flags and per-frame data
2324 XXX - that may cause various forms of bogosity when dissecting
2325 these frames, as they won't have been seen by this sequential
2326 pass, but the only alternative I see is to keep scanning them
2327 even though the user requested that the scan stop, and that
2328 would leave the user stuck with an Wireshark grinding on
2329 until it finishes. Should we just stick them with that? */
2330 for (; fdata != NULL; fdata = fdata->next) {
2331 fdata->flags.visited = 0;
2332 frame_data_cleanup(fdata);
2336 /* We're done filtering the packets; destroy the progress bar if it
2338 if (progbar != NULL)
2339 destroy_progress_dlg(progbar);
2341 /* Unfreeze the packet list. */
2342 if (!add_to_packet_list)
2343 new_packet_list_recreate_visible_rows();
2345 new_packet_list_thaw();
2347 if (selected_frame_num == -1) {
2348 /* The selected frame didn't pass the filter. */
2349 if (selected_frame == NULL) {
2350 /* That's because there *was* no selected frame. Make the first
2351 displayed frame the current frame. */
2352 selected_frame_num = 0;
2354 /* Find the nearest displayed frame to the selected frame (whether
2355 it's before or after that frame) and make that the current frame.
2356 If the next and previous displayed frames are equidistant from the
2357 selected frame, choose the next one. */
2358 g_assert(following_frame == NULL ||
2359 following_frame->num >= selected_frame->num);
2360 g_assert(preceding_frame == NULL ||
2361 preceding_frame->num <= selected_frame->num);
2362 if (following_frame == NULL) {
2363 /* No frame after the selected frame passed the filter, so we
2364 have to select the last displayed frame before the selected
2366 selected_frame_num = preceding_frame_num;
2367 selected_frame = preceding_frame;
2368 } else if (preceding_frame == NULL) {
2369 /* No frame before the selected frame passed the filter, so we
2370 have to select the first displayed frame after the selected
2372 selected_frame_num = following_frame_num;
2373 selected_frame = following_frame;
2375 /* Frames before and after the selected frame passed the filter, so
2376 we'll select the previous frame */
2377 selected_frame_num = preceding_frame_num;
2378 selected_frame = preceding_frame;
2383 if (selected_frame_num == -1) {
2384 /* There are no frames displayed at all. */
2385 cf_unselect_packet(cf);
2387 /* Either the frame that was selected passed the filter, or we've
2388 found the nearest displayed frame to that frame. Select it, make
2389 it the focus row, and make it visible. */
2390 if (selected_frame_num == 0) {
2391 new_packet_list_select_first_row();
2393 new_packet_list_find_row_from_data(selected_frame, TRUE);
2397 /* Cleanup and release all dfilter resources */
2398 if (dfcode != NULL){
2399 dfilter_free(dfcode);
2402 #endif /* NEW_PACKET_LIST */
2405 * Scan trough all frame data and recalculate the ref time
2406 * without rereading the file.
2407 * XXX - do we need a progres bar or is this fast enough?
2409 #ifdef NEW_PACKET_LIST
2411 ref_time_packets(capture_file *cf)
2417 nstime_set_unset(&first_ts);
2418 nstime_set_unset(&prev_dis_ts);
2421 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2423 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2424 /* just add some value here until we know if it is being displayed or not */
2425 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2427 /* If we don't have the time stamp of the first packet in the
2428 capture, it's because this is the first packet. Save the time
2429 stamp of this packet as the time stamp of the first packet. */
2430 if (nstime_is_unset(&first_ts)) {
2431 first_ts = fdata->abs_ts;
2433 /* if this frames is marked as a reference time frame, reset
2434 firstsec and firstusec to this frame */
2435 if(fdata->flags.ref_time){
2436 first_ts = fdata->abs_ts;
2439 /* If we don't have the time stamp of the previous displayed packet,
2440 it's because this is the first displayed packet. Save the time
2441 stamp of this packet as the time stamp of the previous displayed
2443 if (nstime_is_unset(&prev_dis_ts)) {
2444 prev_dis_ts = fdata->abs_ts;
2447 /* Get the time elapsed between the first packet and this packet. */
2448 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2450 /* If it's greater than the current elapsed time, set the elapsed time
2451 to it (we check for "greater than" so as not to be confused by
2452 time moving backwards). */
2453 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2454 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2455 cf->elapsed_time = fdata->rel_ts;
2458 /* Get the time elapsed between the previous displayed packet and
2460 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2462 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2463 /* This frame either passed the display filter list or is marked as
2464 a time reference frame. All time reference frames are displayed
2465 even if they dont pass the display filter */
2466 if(fdata->flags.ref_time){
2467 /* if this was a TIME REF frame we should reset the cul bytes field */
2468 cum_bytes = fdata->pkt_len;
2469 fdata->cum_bytes = cum_bytes;
2471 /* increase cum_bytes with this packets length */
2472 cum_bytes += fdata->pkt_len;
2485 process_specified_packets(capture_file *cf, packet_range_t *range,
2486 const char *string1, const char *string2, gboolean terminate_is_stop,
2487 gboolean (*callback)(capture_file *, frame_data *,
2488 union wtap_pseudo_header *, const guint8 *, void *),
2489 void *callback_args)
2494 union wtap_pseudo_header pseudo_header;
2495 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2496 psp_return_t ret = PSP_FINISHED;
2498 progdlg_t *progbar = NULL;
2501 gboolean progbar_stop_flag;
2502 GTimeVal progbar_start_time;
2503 gchar progbar_status_str[100];
2504 int progbar_nextstep;
2505 int progbar_quantum;
2506 range_process_e process_this;
2508 /* Update the progress bar when it gets to this value. */
2509 progbar_nextstep = 0;
2510 /* When we reach the value that triggers a progress bar update,
2511 bump that value by this amount. */
2512 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2513 /* Count of packets at which we've looked. */
2515 /* Progress so far. */
2518 progbar_stop_flag = FALSE;
2519 g_get_current_time(&progbar_start_time);
2521 packet_range_process_init(range);
2523 /* Iterate through the list of packets, printing the packets that
2524 were selected by the current display filter. */
2525 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2526 /* Create the progress bar if necessary.
2527 We check on every iteration of the loop, so that it takes no
2528 longer than the standard time to create it (otherwise, for a
2529 large file, we might take considerably longer than that standard
2530 time in order to get to the next progress bar step). */
2531 if (progbar == NULL)
2532 progbar = delayed_create_progress_dlg(string1, string2,
2535 &progbar_start_time,
2538 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2539 when we update it, we have to run the GTK+ main loop to get it
2540 to repaint what's pending, and doing so may involve an "ioctl()"
2541 to see if there's any pending input from an X server, and doing
2542 that for every packet can be costly, especially on a big file. */
2543 if (progbar_count >= progbar_nextstep) {
2544 /* let's not divide by zero. I should never be started
2545 * with count == 0, so let's assert that
2547 g_assert(cf->count > 0);
2548 progbar_val = (gfloat) progbar_count / cf->count;
2550 if (progbar != NULL) {
2551 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2552 "%4u of %u packets", progbar_count, cf->count);
2553 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2556 progbar_nextstep += progbar_quantum;
2559 if (progbar_stop_flag) {
2560 /* Well, the user decided to abort the operation. Just stop,
2561 and arrange to return PSP_STOPPED to our caller, so they know
2562 it was stopped explicitly. */
2569 /* do we have to process this packet? */
2570 process_this = packet_range_process_packet(range, fdata);
2571 if (process_this == range_process_next) {
2572 /* this packet uninteresting, continue with next one */
2574 } else if (process_this == range_processing_finished) {
2575 /* all interesting packets processed, stop the loop */
2579 /* Get the packet */
2580 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2581 pd, fdata->cap_len, &err, &err_info)) {
2582 /* Attempt to get the packet failed. */
2583 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2584 cf_read_error_message(err, err_info), cf->filename);
2588 /* Process the packet */
2589 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2590 /* Callback failed. We assume it reported the error appropriately. */
2596 /* We're done printing the packets; destroy the progress bar if
2598 if (progbar != NULL)
2599 destroy_progress_dlg(progbar);
2605 gboolean construct_protocol_tree;
2607 } retap_callback_args_t;
2610 retap_packet(capture_file *cf _U_, frame_data *fdata,
2611 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2614 retap_callback_args_t *args = argsp;
2617 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2618 tap_queue_init(&edt);
2619 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2620 tap_push_tapped_queue(&edt);
2621 epan_dissect_cleanup(&edt);
2627 cf_retap_packets(capture_file *cf)
2629 packet_range_t range;
2630 retap_callback_args_t callback_args;
2631 gboolean filtering_tap_listeners;
2634 /* Do we have any tap listeners with filters? */
2635 filtering_tap_listeners = have_filtering_tap_listeners();
2637 tap_flags = union_of_tap_listener_flags();
2639 /* If any tap listeners have filters, or require the protocol tree,
2640 construct the protocol tree. */
2641 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2642 (tap_flags & TL_REQUIRES_PROTO_TREE);
2644 /* If any tap listeners require the columns, construct them. */
2645 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2647 /* Reset the tap listeners. */
2648 reset_tap_listeners();
2650 /* Iterate through the list of packets, dissecting all packets and
2651 re-running the taps. */
2652 packet_range_init(&range);
2653 packet_range_process_init(&range);
2654 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2655 "all packets", TRUE, retap_packet,
2658 /* Completed successfully. */
2662 /* Well, the user decided to abort the refiltering.
2663 Return CF_READ_ABORTED so our caller knows they did that. */
2664 return CF_READ_ABORTED;
2667 /* Error while retapping. */
2668 return CF_READ_ERROR;
2671 g_assert_not_reached();
2676 print_args_t *print_args;
2677 gboolean print_header_line;
2678 char *header_line_buf;
2679 int header_line_buf_len;
2680 gboolean print_formfeed;
2681 gboolean print_separator;
2685 } print_callback_args_t;
2688 print_packet(capture_file *cf, frame_data *fdata,
2689 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2692 print_callback_args_t *args = argsp;
2699 gboolean proto_tree_needed;
2700 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2701 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2703 /* Create the protocol tree, and make it visible, if we're printing
2704 the dissection or the hex data.
2705 XXX - do we need it if we're just printing the hex data? */
2707 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2708 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2710 /* Fill in the column information if we're printing the summary
2712 if (args->print_args->print_summary) {
2713 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2714 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2716 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2718 if (args->print_formfeed) {
2719 if (!new_page(args->print_args->stream))
2722 if (args->print_separator) {
2723 if (!print_line(args->print_args->stream, 0, ""))
2729 * We generate bookmarks, if the output format supports them.
2730 * The name is "__frameN__".
2732 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2734 if (args->print_args->print_summary) {
2735 if (args->print_header_line) {
2736 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2738 args->print_header_line = FALSE; /* we might not need to print any more */
2740 cp = &args->line_buf[0];
2742 for (i = 0; i < cf->cinfo.num_cols; i++) {
2743 /* Find the length of the string for this column. */
2744 column_len = (int) strlen(cf->cinfo.col_data[i]);
2745 if (args->col_widths[i] > column_len)
2746 column_len = args->col_widths[i];
2748 /* Make sure there's room in the line buffer for the column; if not,
2749 double its length. */
2750 line_len += column_len + 1; /* "+1" for space */
2751 if (line_len > args->line_buf_len) {
2752 cp_off = (int) (cp - args->line_buf);
2753 args->line_buf_len = 2 * line_len;
2754 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2755 cp = args->line_buf + cp_off;
2758 /* Right-justify the packet number column. */
2759 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2760 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2762 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2764 if (i != cf->cinfo.num_cols - 1)
2770 * Generate a bookmark, using the summary line as the title.
2772 if (!print_bookmark(args->print_args->stream, bookmark_name,
2776 if (!print_line(args->print_args->stream, 0, args->line_buf))
2780 * Generate a bookmark, using "Frame N" as the title, as we're not
2781 * printing the summary line.
2783 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2784 if (!print_bookmark(args->print_args->stream, bookmark_name,
2787 } /* if (print_summary) */
2789 if (args->print_args->print_dissections != print_dissections_none) {
2790 if (args->print_args->print_summary) {
2791 /* Separate the summary line from the tree with a blank line. */
2792 if (!print_line(args->print_args->stream, 0, ""))
2796 /* Print the information in that tree. */
2797 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2800 /* Print a blank line if we print anything after this (aka more than one packet). */
2801 args->print_separator = TRUE;
2803 /* Print a header line if we print any more packet summaries */
2804 args->print_header_line = TRUE;
2807 if (args->print_args->print_hex) {
2808 /* Print the full packet data as hex. */
2809 if (!print_hex_data(args->print_args->stream, &edt))
2812 /* Print a blank line if we print anything after this (aka more than one packet). */
2813 args->print_separator = TRUE;
2815 /* Print a header line if we print any more packet summaries */
2816 args->print_header_line = TRUE;
2817 } /* if (args->print_args->print_dissections != print_dissections_none) */
2819 epan_dissect_cleanup(&edt);
2821 /* do we want to have a formfeed between each packet from now on? */
2822 if(args->print_args->print_formfeed) {
2823 args->print_formfeed = TRUE;
2829 epan_dissect_cleanup(&edt);
2834 cf_print_packets(capture_file *cf, print_args_t *print_args)
2837 print_callback_args_t callback_args;
2845 callback_args.print_args = print_args;
2846 callback_args.print_header_line = TRUE;
2847 callback_args.header_line_buf = NULL;
2848 callback_args.header_line_buf_len = 256;
2849 callback_args.print_formfeed = FALSE;
2850 callback_args.print_separator = FALSE;
2851 callback_args.line_buf = NULL;
2852 callback_args.line_buf_len = 256;
2853 callback_args.col_widths = NULL;
2855 if (!print_preamble(print_args->stream, cf->filename)) {
2856 destroy_print_stream(print_args->stream);
2857 return CF_PRINT_WRITE_ERROR;
2860 if (print_args->print_summary) {
2861 /* We're printing packet summaries. Allocate the header line buffer
2862 and get the column widths. */
2863 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2865 /* Find the widths for each of the columns - maximum of the
2866 width of the title and the width of the data - and construct
2867 a buffer with a line containing the column titles. */
2868 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2869 cp = &callback_args.header_line_buf[0];
2871 for (i = 0; i < cf->cinfo.num_cols; i++) {
2872 /* Don't pad the last column. */
2873 if (i == cf->cinfo.num_cols - 1)
2874 callback_args.col_widths[i] = 0;
2876 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2877 data_width = get_column_char_width(get_column_format(i));
2878 if (data_width > callback_args.col_widths[i])
2879 callback_args.col_widths[i] = data_width;
2882 /* Find the length of the string for this column. */
2883 column_len = (int) strlen(cf->cinfo.col_title[i]);
2884 if (callback_args.col_widths[i] > column_len)
2885 column_len = callback_args.col_widths[i];
2887 /* Make sure there's room in the line buffer for the column; if not,
2888 double its length. */
2889 line_len += column_len + 1; /* "+1" for space */
2890 if (line_len > callback_args.header_line_buf_len) {
2891 cp_off = (int) (cp - callback_args.header_line_buf);
2892 callback_args.header_line_buf_len = 2 * line_len;
2893 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2894 callback_args.header_line_buf_len + 1);
2895 cp = callback_args.header_line_buf + cp_off;
2898 /* Right-justify the packet number column. */
2899 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2900 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2902 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2904 if (i != cf->cinfo.num_cols - 1)
2909 /* Now start out the main line buffer with the same length as the
2910 header line buffer. */
2911 callback_args.line_buf_len = callback_args.header_line_buf_len;
2912 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2913 } /* if (print_summary) */
2915 /* Iterate through the list of packets, printing the packets we were
2917 ret = process_specified_packets(cf, &print_args->range, "Printing",
2918 "selected packets", TRUE, print_packet,
2921 g_free(callback_args.header_line_buf);
2922 g_free(callback_args.line_buf);
2923 g_free(callback_args.col_widths);
2928 /* Completed successfully. */
2932 /* Well, the user decided to abort the printing.
2934 XXX - note that what got generated before they did that
2935 will get printed if we're piping to a print program; we'd
2936 have to write to a file and then hand that to the print
2937 program to make it actually not print anything. */
2941 /* Error while printing.
2943 XXX - note that what got generated before they did that
2944 will get printed if we're piping to a print program; we'd
2945 have to write to a file and then hand that to the print
2946 program to make it actually not print anything. */
2947 destroy_print_stream(print_args->stream);
2948 return CF_PRINT_WRITE_ERROR;
2951 if (!print_finale(print_args->stream)) {
2952 destroy_print_stream(print_args->stream);
2953 return CF_PRINT_WRITE_ERROR;
2956 if (!destroy_print_stream(print_args->stream))
2957 return CF_PRINT_WRITE_ERROR;
2963 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2964 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2970 /* Create the protocol tree, but don't fill in the column information. */
2971 epan_dissect_init(&edt, TRUE, TRUE);
2972 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2974 /* Write out the information in that tree. */
2975 proto_tree_write_pdml(&edt, fh);
2977 epan_dissect_cleanup(&edt);
2983 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2988 fh = ws_fopen(print_args->file, "w");
2990 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2992 write_pdml_preamble(fh);
2995 return CF_PRINT_WRITE_ERROR;
2998 /* Iterate through the list of packets, printing the packets we were
3000 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
3001 "selected packets", TRUE,
3002 write_pdml_packet, fh);
3007 /* Completed successfully. */
3011 /* Well, the user decided to abort the printing. */
3015 /* Error while printing. */
3017 return CF_PRINT_WRITE_ERROR;
3020 write_pdml_finale(fh);
3023 return CF_PRINT_WRITE_ERROR;
3026 /* XXX - check for an error */
3033 write_psml_packet(capture_file *cf, frame_data *fdata,
3034 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3039 gboolean proto_tree_needed;
3041 /* Fill in the column information, only create the protocol tree
3042 if having custom columns. */
3043 proto_tree_needed = have_custom_cols(&cf->cinfo);
3044 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3045 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3046 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3048 /* Write out the information in that tree. */
3049 proto_tree_write_psml(&edt, fh);
3051 epan_dissect_cleanup(&edt);
3057 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
3062 fh = ws_fopen(print_args->file, "w");
3064 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3066 write_psml_preamble(fh);
3069 return CF_PRINT_WRITE_ERROR;
3072 /* Iterate through the list of packets, printing the packets we were
3074 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
3075 "selected packets", TRUE,
3076 write_psml_packet, fh);
3081 /* Completed successfully. */
3085 /* Well, the user decided to abort the printing. */
3089 /* Error while printing. */
3091 return CF_PRINT_WRITE_ERROR;
3094 write_psml_finale(fh);
3097 return CF_PRINT_WRITE_ERROR;
3100 /* XXX - check for an error */
3107 write_csv_packet(capture_file *cf, frame_data *fdata,
3108 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3113 gboolean proto_tree_needed;
3115 /* Fill in the column information, only create the protocol tree
3116 if having custom columns. */
3117 proto_tree_needed = have_custom_cols(&cf->cinfo);
3118 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
3119 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
3120 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
3122 /* Write out the information in that tree. */
3123 proto_tree_write_csv(&edt, fh);
3125 epan_dissect_cleanup(&edt);
3131 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
3136 fh = ws_fopen(print_args->file, "w");
3138 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3140 write_csv_preamble(fh);
3143 return CF_PRINT_WRITE_ERROR;
3146 /* Iterate through the list of packets, printing the packets we were
3148 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
3149 "selected packets", TRUE,
3150 write_csv_packet, fh);
3155 /* Completed successfully. */
3159 /* Well, the user decided to abort the printing. */
3163 /* Error while printing. */
3165 return CF_PRINT_WRITE_ERROR;
3168 write_csv_finale(fh);
3171 return CF_PRINT_WRITE_ERROR;
3174 /* XXX - check for an error */
3181 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3182 union wtap_pseudo_header *pseudo_header _U_,
3183 const guint8 *pd, void *argsp)
3187 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
3192 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3197 fh = ws_fopen(print_args->file, "w");
3200 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3202 write_carrays_preamble(fh);
3206 return CF_PRINT_WRITE_ERROR;
3209 /* Iterate through the list of packets, printing the packets we were
3211 ret = process_specified_packets(cf, &print_args->range,
3213 "selected packets", TRUE,
3214 write_carrays_packet, fh);
3217 /* Completed successfully. */
3220 /* Well, the user decided to abort the printing. */
3223 /* Error while printing. */
3225 return CF_PRINT_WRITE_ERROR;
3228 write_carrays_finale(fh);
3232 return CF_PRINT_WRITE_ERROR;
3239 #ifndef NEW_PACKET_LIST /* This finction is not needed with the new packet list */
3241 /* Scan through the packet list and change all columns that use the
3242 "command-line-specified" time stamp format to use the current
3243 value of that format. */
3245 cf_change_time_formats(capture_file *cf)
3249 progdlg_t *progbar = NULL;
3254 GTimeVal start_time;
3255 gchar status_str[100];
3256 int progbar_nextstep;
3257 int progbar_quantum;
3258 gboolean sorted_by_frame_column;
3260 /* Adjust timestamp precision if auto is selected */
3261 cf_timestamp_auto_precision(cf);
3263 /* Are there any columns with time stamps in the "command-line-specified"
3266 XXX - we have to force the "column is writable" flag on, as it
3267 might be off from the last frame that was dissected. */
3268 col_set_writable(&cf->cinfo, TRUE);
3269 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
3270 !check_col(&cf->cinfo, COL_ABS_TIME) &&
3271 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
3272 !check_col(&cf->cinfo, COL_REL_TIME) &&
3273 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
3274 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
3275 /* No, there aren't any columns in that format, so we have no work
3280 /* Freeze the packet list while we redo it, so we don't get any
3281 screen updates while it happens. */
3282 packet_list_freeze();
3284 /* Update the progress bar when it gets to this value. */
3285 progbar_nextstep = 0;
3286 /* When we reach the value that triggers a progress bar update,
3287 bump that value by this amount. */
3288 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3289 /* Count of packets at which we've looked. */
3291 /* Progress so far. */
3294 /* If the rows are currently sorted by the frame column then we know
3295 * the row number of each packet: it's the row number of the previously
3296 * displayed packet + 1.
3298 * Otherwise, if the display is sorted by a different column then we have
3299 * to use the O(N) packet_list_find_row_from_data() (thus making the job
3300 * of changing the time display format O(N**2)).
3302 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
3303 * the row number and walks that many elements down the clist to find
3304 * the appropriate element.)
3306 sorted_by_frame_column = FALSE;
3307 for (i = 0; i < cf->cinfo.num_cols; i++) {
3308 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
3310 sorted_by_frame_column = (i == packet_list_get_sort_column());
3316 g_get_current_time(&start_time);
3318 /* Iterate through the list of packets, checking whether the packet
3319 is in a row of the summary list and, if so, whether there are
3320 any columns that show the time in the "command-line-specified"
3321 format and, if so, update that row. */
3322 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
3323 /* Create the progress bar if necessary.
3324 We check on every iteration of the loop, so that it takes no
3325 longer than the standard time to create it (otherwise, for a
3326 large file, we might take considerably longer than that standard
3327 time in order to get to the next progress bar step). */
3328 if (progbar == NULL)
3329 progbar = delayed_create_progress_dlg("Changing", "time display",
3330 TRUE, &stop_flag, &start_time, progbar_val);
3332 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3333 when we update it, we have to run the GTK+ main loop to get it
3334 to repaint what's pending, and doing so may involve an "ioctl()"
3335 to see if there's any pending input from an X server, and doing
3336 that for every packet can be costly, especially on a big file. */
3337 if (count >= progbar_nextstep) {
3338 /* let's not divide by zero. I should never be started
3339 * with count == 0, so let's assert that
3341 g_assert(cf->count > 0);
3343 progbar_val = (gfloat) count / cf->count;
3345 if (progbar != NULL) {
3346 g_snprintf(status_str, sizeof(status_str),
3347 "%4u of %u packets", count, cf->count);
3348 update_progress_dlg(progbar, progbar_val, status_str);
3351 progbar_nextstep += progbar_quantum;
3355 /* Well, the user decided to abort the redisplay. Just stop.
3357 XXX - this leaves the time field in the old format in
3358 frames we haven't yet processed. So it goes; should we
3359 simply not offer them the option of stopping? */
3365 /* Find what row this packet is in. */
3366 if (!sorted_by_frame_column) {
3367 /* This function is O(N), so we try to avoid using it... */
3368 row = packet_list_find_row_from_data(fdata);
3370 /* ...which we do by maintaining a count of packets that are
3371 being displayed (i.e., that have passed the display filter),
3372 and using the current value of that count as the row number
3373 (which is why we can only do it when the display is sorted
3374 by the frame number). */
3375 if (fdata->flags.passed_dfilter)
3382 /* This packet is in the summary list, on row "row". */
3384 for (i = 0; i < cf->cinfo.num_cols; i++) {
3385 if (col_has_time_fmt(&cf->cinfo, i)) {
3386 /* This is one of the columns that shows the time in
3387 "command-line-specified" format; update it. */
3388 cf->cinfo.col_buf[i][0] = '\0';
3389 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
3390 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
3396 /* We're done redisplaying the packets; destroy the progress bar if it
3398 if (progbar != NULL)
3399 destroy_progress_dlg(progbar);
3401 /* Set the column widths of those columns that show the time in
3402 "command-line-specified" format. */
3403 for (i = 0; i < cf->cinfo.num_cols; i++) {
3404 if (col_has_time_fmt(&cf->cinfo, i)) {
3405 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3409 /* Unfreeze the packet list. */
3412 #endif /* NEW_PACKET_LIST */
3419 gboolean frame_matched;
3423 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3427 mdata.string = string;
3428 mdata.string_len = strlen(string);
3429 return find_packet(cf, match_protocol_tree, &mdata);
3433 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3435 match_data *mdata = criterion;
3438 /* Construct the protocol tree, including the displayed text */
3439 epan_dissect_init(&edt, TRUE, TRUE);
3440 /* We don't need the column information */
3441 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3443 /* Iterate through all the nodes, seeing if they have text that matches. */
3445 mdata->frame_matched = FALSE;
3446 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3447 epan_dissect_cleanup(&edt);
3448 return mdata->frame_matched;
3452 match_subtree_text(proto_node *node, gpointer data)
3454 match_data *mdata = (match_data*) data;
3455 const gchar *string = mdata->string;
3456 size_t string_len = mdata->string_len;
3457 capture_file *cf = mdata->cf;
3458 field_info *fi = PNODE_FINFO(node);
3459 gchar label_str[ITEM_LABEL_LENGTH];
3466 g_assert(fi && "dissection with an invisible proto tree?");
3468 if (mdata->frame_matched) {
3469 /* We already had a match; don't bother doing any more work. */
3473 /* Don't match invisible entries. */
3474 if (PROTO_ITEM_IS_HIDDEN(node))
3477 /* was a free format label produced? */
3479 label_ptr = fi->rep->representation;
3481 /* no, make a generic label */
3482 label_ptr = label_str;
3483 proto_item_fill_label(fi, label_str);
3486 /* Does that label match? */
3487 label_len = strlen(label_ptr);
3488 for (i = 0; i < label_len; i++) {
3489 c_char = label_ptr[i];
3491 c_char = toupper(c_char);
3492 if (c_char == string[c_match]) {
3494 if (c_match == string_len) {
3495 /* No need to look further; we have a match */
3496 mdata->frame_matched = TRUE;
3503 /* Recurse into the subtree, if it exists */
3504 if (node->first_child != NULL)
3505 proto_tree_children_foreach(node, match_subtree_text, mdata);
3509 cf_find_packet_summary_line(capture_file *cf, const char *string)
3513 mdata.string = string;
3514 mdata.string_len = strlen(string);
3515 return find_packet(cf, match_summary_line, &mdata);
3519 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3521 match_data *mdata = criterion;
3522 const gchar *string = mdata->string;
3523 size_t string_len = mdata->string_len;
3525 const char *info_column;
3526 size_t info_column_len;
3527 gboolean frame_matched = FALSE;
3533 /* Don't bother constructing the protocol tree */
3534 epan_dissect_init(&edt, FALSE, FALSE);
3535 /* Get the column information */
3536 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3538 /* Find the Info column */
3539 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3540 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3541 /* Found it. See if we match. */
3542 info_column = edt.pi.cinfo->col_data[colx];
3543 info_column_len = strlen(info_column);
3544 for (i = 0; i < info_column_len; i++) {
3545 c_char = info_column[i];
3547 c_char = toupper(c_char);
3548 if (c_char == string[c_match]) {
3550 if (c_match == string_len) {
3551 frame_matched = TRUE;
3560 epan_dissect_cleanup(&edt);
3561 return frame_matched;
3567 } cbs_t; /* "Counted byte string" */
3570 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3575 info.data_len = string_size;
3577 /* String or hex search? */
3579 /* String search - what type of string? */
3580 switch (cf->scs_type) {
3582 case SCS_ASCII_AND_UNICODE:
3583 return find_packet(cf, match_ascii_and_unicode, &info);
3586 return find_packet(cf, match_ascii, &info);
3589 return find_packet(cf, match_unicode, &info);
3592 g_assert_not_reached();
3596 return find_packet(cf, match_binary, &info);
3600 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3602 cbs_t *info = criterion;
3603 const guint8 *ascii_text = info->data;
3604 size_t textlen = info->data_len;
3605 gboolean frame_matched;
3611 frame_matched = FALSE;
3612 buf_len = fdata->pkt_len;
3613 for (i = 0; i < buf_len; i++) {
3616 c_char = toupper(c_char);
3618 if (c_char == ascii_text[c_match]) {
3620 if (c_match == textlen) {
3621 frame_matched = TRUE;
3622 cf->search_pos = i; /* Save the position of the last character
3623 for highlighting the field. */
3630 return frame_matched;
3634 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3636 cbs_t *info = criterion;
3637 const guint8 *ascii_text = info->data;
3638 size_t textlen = info->data_len;
3639 gboolean frame_matched;
3645 frame_matched = FALSE;
3646 buf_len = fdata->pkt_len;
3647 for (i = 0; i < buf_len; i++) {
3650 c_char = toupper(c_char);
3651 if (c_char == ascii_text[c_match]) {
3653 if (c_match == textlen) {
3654 frame_matched = TRUE;
3655 cf->search_pos = i; /* Save the position of the last character
3656 for highlighting the field. */
3662 return frame_matched;
3666 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3668 cbs_t *info = criterion;
3669 const guint8 *ascii_text = info->data;
3670 size_t textlen = info->data_len;
3671 gboolean frame_matched;
3677 frame_matched = FALSE;
3678 buf_len = fdata->pkt_len;
3679 for (i = 0; i < buf_len; i++) {
3682 c_char = toupper(c_char);
3683 if (c_char == ascii_text[c_match]) {
3686 if (c_match == textlen) {
3687 frame_matched = TRUE;
3688 cf->search_pos = i; /* Save the position of the last character
3689 for highlighting the field. */
3695 return frame_matched;
3699 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3701 cbs_t *info = criterion;
3702 const guint8 *binary_data = info->data;
3703 size_t datalen = info->data_len;
3704 gboolean frame_matched;
3709 frame_matched = FALSE;
3710 buf_len = fdata->pkt_len;
3711 for (i = 0; i < buf_len; i++) {
3712 if (cf->pd[i] == binary_data[c_match]) {
3714 if (c_match == datalen) {
3715 frame_matched = TRUE;
3716 cf->search_pos = i; /* Save the position of the last character
3717 for highlighting the field. */
3723 return frame_matched;
3727 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3729 return find_packet(cf, match_dfilter, sfcode);
3733 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3735 dfilter_t *sfcode = criterion;
3737 gboolean frame_matched;
3739 epan_dissect_init(&edt, TRUE, FALSE);
3740 epan_dissect_prime_dfilter(&edt, sfcode);
3741 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3742 frame_matched = dfilter_apply_edt(sfcode, &edt);
3743 epan_dissect_cleanup(&edt);
3744 return frame_matched;
3748 find_packet(capture_file *cf,
3749 gboolean (*match_function)(capture_file *, frame_data *, void *),
3752 frame_data *start_fd;
3754 frame_data *new_fd = NULL;
3755 progdlg_t *progbar = NULL;
3762 GTimeVal start_time;
3763 gchar status_str[100];
3764 int progbar_nextstep;
3765 int progbar_quantum;
3768 start_fd = cf->current_frame;
3769 if (start_fd != NULL) {
3770 /* Iterate through the list of packets, starting at the packet we've
3771 picked, calling a routine to run the filter on the packet, see if
3772 it matches, and stop if so. */
3776 /* Update the progress bar when it gets to this value. */
3777 progbar_nextstep = 0;
3778 /* When we reach the value that triggers a progress bar update,
3779 bump that value by this amount. */
3780 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3781 /* Progress so far. */
3785 g_get_current_time(&start_time);
3788 title = cf->sfilter?cf->sfilter:"";
3790 /* Create the progress bar if necessary.
3791 We check on every iteration of the loop, so that it takes no
3792 longer than the standard time to create it (otherwise, for a
3793 large file, we might take considerably longer than that standard
3794 time in order to get to the next progress bar step). */
3795 if (progbar == NULL)
3796 progbar = delayed_create_progress_dlg("Searching", title,
3797 FALSE, &stop_flag, &start_time, progbar_val);
3799 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3800 when we update it, we have to run the GTK+ main loop to get it
3801 to repaint what's pending, and doing so may involve an "ioctl()"
3802 to see if there's any pending input from an X server, and doing
3803 that for every packet can be costly, especially on a big file. */
3804 if (count >= progbar_nextstep) {
3805 /* let's not divide by zero. I should never be started
3806 * with count == 0, so let's assert that
3808 g_assert(cf->count > 0);
3810 progbar_val = (gfloat) count / cf->count;
3812 if (progbar != NULL) {
3813 g_snprintf(status_str, sizeof(status_str),
3814 "%4u of %u packets", count, cf->count);
3815 update_progress_dlg(progbar, progbar_val, status_str);
3818 progbar_nextstep += progbar_quantum;
3822 /* Well, the user decided to abort the search. Go back to the
3823 frame where we started. */
3828 /* Go past the current frame. */
3829 if (cf->sbackward) {
3830 /* Go on to the previous frame. */
3831 fdata = fdata->prev;
3832 if (fdata == NULL) {
3834 * XXX - other apps have a bit more of a detailed message
3835 * for this, and instead of offering "OK" and "Cancel",
3836 * they offer things such as "Continue" and "Cancel";
3837 * we need an API for popping up alert boxes with
3838 * {Verb} and "Cancel".
3841 if (prefs.gui_find_wrap)
3843 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3844 "%sBeginning of capture exceeded!%s\n\n"
3845 "Search is continued from the end of the capture.",
3846 simple_dialog_primary_start(), simple_dialog_primary_end());
3847 fdata = cf->plist_end; /* wrap around */
3851 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3852 "%sBeginning of capture exceeded!%s\n\n"
3853 "Try searching forwards.",
3854 simple_dialog_primary_start(), simple_dialog_primary_end());
3855 fdata = start_fd; /* stay on previous packet */
3859 /* Go on to the next frame. */
3860 fdata = fdata->next;
3861 if (fdata == NULL) {
3862 if (prefs.gui_find_wrap)
3864 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3865 "%sEnd of capture exceeded!%s\n\n"
3866 "Search is continued from the start of the capture.",
3867 simple_dialog_primary_start(), simple_dialog_primary_end());
3868 fdata = cf->plist; /* wrap around */
3872 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3873 "%sEnd of capture exceeded!%s\n\n"
3874 "Try searching backwards.",
3875 simple_dialog_primary_start(), simple_dialog_primary_end());
3876 fdata = start_fd; /* stay on previous packet */
3883 /* Is this packet in the display? */
3884 if (fdata->flags.passed_dfilter) {
3885 /* Yes. Load its data. */
3886 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3887 cf->pd, fdata->cap_len, &err, &err_info)) {
3888 /* Read error. Report the error, and go back to the frame
3889 where we started. */
3890 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3891 cf_read_error_message(err, err_info), cf->filename);
3896 /* Does it match the search criterion? */
3897 if ((*match_function)(cf, fdata, criterion)) {
3899 break; /* found it! */
3903 if (fdata == start_fd) {
3904 /* We're back to the frame we were on originally, and that frame
3905 doesn't match the search filter. The search failed. */
3910 /* We're done scanning the packets; destroy the progress bar if it
3912 if (progbar != NULL)
3913 destroy_progress_dlg(progbar);
3916 if (new_fd != NULL) {
3917 #ifdef NEW_PACKET_LIST
3918 /* Find and select */
3919 row = new_packet_list_find_row_from_data(fdata, TRUE);
3921 /* We found a frame. Find what row it's in. */
3922 row = packet_list_find_row_from_data(new_fd);
3923 #endif /* NEW_PACKET_LIST */
3925 /* We didn't find a row even though we know that a frame
3926 * exists that satifies the search criteria. This means that the
3927 * frame isn't being displayed currently so we can't select it. */
3928 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3929 "%sEnd of capture exceeded!%s\n\n"
3930 "The capture file is probably not fully loaded.",
3931 simple_dialog_primary_start(), simple_dialog_primary_end());
3935 #ifndef NEW_PACKET_LIST
3936 /* Select that row, make it the focus row, and make it visible. */
3937 packet_list_set_selected_row(row);
3938 #endif /* NEW_PACKET_LIST */
3939 return TRUE; /* success */
3941 return FALSE; /* failure */
3945 cf_goto_frame(capture_file *cf, guint fnumber)
3950 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3953 if (fdata == NULL) {
3954 /* we didn't find a packet with that packet number */
3955 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3956 "There is no packet with the packet number %u.", fnumber);
3957 return FALSE; /* we failed to go to that packet */
3959 if (!fdata->flags.passed_dfilter) {
3960 /* that packet currently isn't displayed */
3961 /* XXX - add it to the set of displayed packets? */
3962 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3963 "The packet number %u isn't currently being displayed.", fnumber);
3964 return FALSE; /* we failed to go to that packet */
3967 #ifdef NEW_PACKET_LIST
3968 row = new_packet_list_find_row_from_data(fdata, TRUE);
3970 /* We found that packet, and it's currently being displayed.
3971 Find what row it's in. */
3972 row = packet_list_find_row_from_data(fdata);
3973 g_assert(row != -1);
3975 /* Select that row, make it the focus row, and make it visible. */
3976 packet_list_set_selected_row(row);
3977 #endif /* NEW_PACKET_LIST */
3978 return TRUE; /* we got to that packet */
3982 cf_goto_top_frame(capture_file *cf _U_)
3984 #ifdef NEW_PACKET_LIST
3985 /* Find and select */
3986 new_packet_list_select_first_row();
3990 frame_data *lowest_fdata = NULL;
3992 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3993 if (fdata->flags.passed_dfilter) {
3994 lowest_fdata = fdata;
3999 if (lowest_fdata == NULL) {
4003 /* We found that packet, and it's currently being displayed.
4004 Find what row it's in. */
4005 row = packet_list_find_row_from_data(lowest_fdata);
4006 g_assert(row != -1);
4008 /* Select that row, make it the focus row, and make it visible. */
4009 packet_list_set_selected_row(row);
4010 #endif /* NEW_PACKET_LIST */
4011 return TRUE; /* we got to that packet */
4015 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
4017 #ifdef NEW_PACKET_LIST
4018 /* Find and select */
4019 new_packet_list_select_last_row();
4023 frame_data *highest_fdata = NULL;
4025 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
4026 if (fdata->flags.passed_dfilter) {
4027 highest_fdata = fdata;
4031 if (highest_fdata == NULL) {
4035 /* We found that packet, and it's currently being displayed.
4036 Find what row it's in. */
4037 row = packet_list_find_row_from_data(highest_fdata);
4038 g_assert(row != -1);
4040 /* Select that row, make it the focus row, and make it visible. */
4041 packet_list_set_selected_row(row);
4042 #endif /* NEW_PACKET_LIST */
4043 return TRUE; /* we got to that packet */
4047 * Go to frame specified by currently selected protocol tree item.
4050 cf_goto_framenum(capture_file *cf)
4052 header_field_info *hfinfo;
4055 if (cf->finfo_selected) {
4056 hfinfo = cf->finfo_selected->hfinfo;
4058 if (hfinfo->type == FT_FRAMENUM) {
4059 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
4061 return cf_goto_frame(cf, framenum);
4068 /* Select the packet on a given row. */
4070 cf_select_packet(capture_file *cf, int row)
4076 /* Get the frame data struct pointer for this frame */
4077 #ifdef NEW_PACKET_LIST
4078 fdata = new_packet_list_get_row_data(row);
4080 fdata = (frame_data *)packet_list_get_row_data(row);
4083 if (fdata == NULL) {
4084 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
4085 the first entry is added to it by "real_insert_row()", that row
4086 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
4087 our version and the vanilla GTK+ version).
4089 This means that a "select-row" signal is emitted; this causes
4090 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
4093 "cf_select_packet()" fetches, above, the data associated with the
4094 row that was selected; however, as "gtk_clist_append()", which
4095 called "real_insert_row()", hasn't yet returned, we haven't yet
4096 associated any data with that row, so we get back a null pointer.
4098 We can't assume that there's only one frame in the frame list,
4099 either, as we may be filtering the display.
4101 We therefore assume that, if "row" is 0, i.e. the first row
4102 is being selected, and "cf->first_displayed" equals
4103 "cf->last_displayed", i.e. there's only one frame being
4104 displayed, that frame is the frame we want.
4106 This means we have to set "cf->first_displayed" and
4107 "cf->last_displayed" before adding the row to the
4108 GtkCList; see the comment in "add_packet_to_packet_list()". */
4110 if (row == 0 && cf->first_displayed == cf->last_displayed)
4111 fdata = cf->first_displayed;
4114 /* If fdata _still_ isn't set simply give up. */
4115 if (fdata == NULL) {
4119 /* Get the data in that frame. */
4120 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
4121 cf->pd, fdata->cap_len, &err, &err_info)) {
4122 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4123 cf_read_error_message(err, err_info), cf->filename);
4127 /* Record that this frame is the current frame. */
4128 cf->current_frame = fdata;
4129 cf->current_row = row;
4131 /* Create the logical protocol tree. */
4132 if (cf->edt != NULL)
4133 epan_dissect_free(cf->edt);
4135 /* We don't need the columns here. */
4136 cf->edt = epan_dissect_new(TRUE, TRUE);
4138 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
4141 dfilter_macro_build_ftv_cache(cf->edt->tree);
4143 cf_callback_invoke(cf_cb_packet_selected, cf);
4146 /* Unselect the selected packet, if any. */
4148 cf_unselect_packet(capture_file *cf)
4150 /* Destroy the epan_dissect_t for the unselected packet. */
4151 if (cf->edt != NULL) {
4152 epan_dissect_free(cf->edt);
4156 /* No packet is selected. */
4157 cf->current_frame = NULL;
4158 cf->current_row = 0;
4160 cf_callback_invoke(cf_cb_packet_unselected, cf);
4162 /* No protocol tree means no selected field. */
4163 cf_unselect_field(cf);
4166 /* Unset the selected protocol tree field, if any. */
4168 cf_unselect_field(capture_file *cf)
4170 cf->finfo_selected = NULL;
4172 cf_callback_invoke(cf_cb_field_unselected, cf);
4176 * Mark a particular frame.
4179 cf_mark_frame(capture_file *cf, frame_data *frame)
4181 if (! frame->flags.marked) {
4182 frame->flags.marked = TRUE;
4183 if (cf->count > cf->marked_count)
4189 * Unmark a particular frame.
4192 cf_unmark_frame(capture_file *cf, frame_data *frame)
4194 if (frame->flags.marked) {
4195 frame->flags.marked = FALSE;
4196 if (cf->marked_count > 0)
4204 } save_callback_args_t;
4207 * Save a capture to a file, in a particular format, saving either
4208 * all packets, all currently-displayed packets, or all marked packets.
4210 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4211 * up a message box for the failure.
4214 save_packet(capture_file *cf _U_, frame_data *fdata,
4215 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
4218 save_callback_args_t *args = argsp;
4219 struct wtap_pkthdr hdr;
4222 /* init the wtap header for saving */
4223 hdr.ts.secs = fdata->abs_ts.secs;
4224 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4225 hdr.caplen = fdata->cap_len;
4226 hdr.len = fdata->pkt_len;
4227 hdr.pkt_encap = fdata->lnk_t;
4229 /* and save the packet */
4230 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
4231 cf_write_failure_alert_box(args->fname, err);
4238 * Can this capture file be saved in any format except by copying the raw data?
4241 cf_can_save_as(capture_file *cf)
4245 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
4246 /* To save a file with Wiretap, Wiretap has to handle that format,
4247 and its code to handle that format must be able to write a file
4248 with this file's encapsulation type. */
4249 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
4250 /* OK, we can write it out in this type. */
4255 /* No, we couldn't save it in any format. */
4260 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
4262 gchar *from_filename;
4266 save_callback_args_t callback_args;
4268 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
4270 /* don't write over an existing file. */
4271 /* this should've been already checked by our caller, just to be sure... */
4272 if (file_exists(fname)) {
4273 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4274 "%sCapture file: \"%s\" already exists!%s\n\n"
4275 "Please choose a different filename.",
4276 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
4280 packet_range_process_init(range);
4283 if (packet_range_process_all(range) && save_format == cf->cd_t) {
4284 /* We're not filtering packets, and we're saving it in the format
4285 it's already in, so we can just move or copy the raw data. */
4287 if (cf->is_tempfile) {
4288 /* The file being saved is a temporary file from a live
4289 capture, so it doesn't need to stay around under that name;
4290 first, try renaming the capture buffer file to the new name. */
4292 if (ws_rename(cf->filename, fname) == 0) {
4293 /* That succeeded - there's no need to copy the source file. */
4294 from_filename = NULL;
4297 if (errno == EXDEV) {
4298 /* They're on different file systems, so we have to copy the
4301 from_filename = cf->filename;
4303 /* The rename failed, but not because they're on different
4304 file systems - put up an error message. (Or should we
4305 just punt and try to copy? The only reason why I'd
4306 expect the rename to fail and the copy to succeed would
4307 be if we didn't have permission to remove the file from
4308 the temporary directory, and that might be fixable - but
4309 is it worth requiring the user to go off and fix it?) */
4310 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4311 file_rename_error_message(errno), fname);
4317 from_filename = cf->filename;
4320 /* It's a permanent file, so we should copy it, and not remove the
4323 from_filename = cf->filename;
4327 /* Copy the file, if we haven't moved it. */
4328 if (!copy_file_binary_mode(from_filename, fname))
4332 /* Either we're filtering packets, or we're saving in a different
4333 format; we can't do that by copying or moving the capture file,
4334 we have to do it by writing the packets out in Wiretap. */
4335 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
4338 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4342 /* XXX - we let the user save a subset of the packets.
4344 If we do that, should we make that file the current file? If so,
4345 it means we can no longer get at the other packets. What does
4348 /* Iterate through the list of packets, processing the packets we were
4351 XXX - we've already called "packet_range_process_init(range)", but
4352 "process_specified_packets()" will do it again. Fortunately,
4353 that's harmless in this case, as we haven't done anything to
4354 "range" since we initialized it. */
4355 callback_args.pdh = pdh;
4356 callback_args.fname = fname;
4357 switch (process_specified_packets(cf, range, "Saving", "selected packets",
4358 TRUE, save_packet, &callback_args)) {
4361 /* Completed successfully. */
4365 /* The user decided to abort the saving.
4366 XXX - remove the output file? */
4370 /* Error while saving. */
4371 wtap_dump_close(pdh, &err);
4375 if (!wtap_dump_close(pdh, &err)) {
4376 cf_close_failure_alert_box(fname, err);
4381 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
4383 if (packet_range_process_all(range)) {
4384 /* We saved the entire capture, not just some packets from it.
4385 Open and read the file we saved it to.
4387 XXX - this is somewhat of a waste; we already have the
4388 packets, all this gets us is updated file type information
4389 (which we could just stuff into "cf"), and having the new
4390 file be the one we have opened and from which we're reading
4391 the data, and it means we have to spend time opening and
4392 reading the file, which could be a significant amount of
4393 time if the file is large. */
4394 cf->user_saved = TRUE;
4396 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
4397 /* XXX - report errors if this fails?
4398 What should we return if it fails or is aborted? */
4399 switch (cf_read(cf)) {
4403 /* Just because we got an error, that doesn't mean we were unable
4404 to read any of the file; we handle what we could get from the
4408 case CF_READ_ABORTED:
4409 /* The user bailed out of re-reading the capture file; the
4410 capture file has been closed - just return (without
4411 changing any menu settings; "cf_close()" set them
4412 correctly for the "no capture file open" state). */
4415 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4421 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4426 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4427 gboolean for_writing, int file_type)
4430 /* Wiretap error. */
4433 case WTAP_ERR_NOT_REGULAR_FILE:
4434 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4435 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4439 case WTAP_ERR_RANDOM_OPEN_PIPE:
4440 /* Seen only when opening a capture file for reading. */
4441 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4442 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4446 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4447 /* Seen only when opening a capture file for reading. */
4448 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4449 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4453 case WTAP_ERR_UNSUPPORTED:
4454 /* Seen only when opening a capture file for reading. */
4455 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4456 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4458 filename, err_info);
4462 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4463 /* Seen only when opening a capture file for writing. */
4464 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4465 "The file \"%s\" is a pipe, and %s capture files can't be "
4466 "written to a pipe.",
4467 filename, wtap_file_type_string(file_type));
4470 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4471 /* Seen only when opening a capture file for writing. */
4472 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4473 "Wireshark doesn't support writing capture files in that format.");
4476 case WTAP_ERR_UNSUPPORTED_ENCAP:
4478 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4479 "Wireshark can't save this capture in that format.");
4481 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4482 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4484 filename, err_info);
4489 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4491 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4492 "Wireshark can't save this capture in that format.");
4494 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4495 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4500 case WTAP_ERR_BAD_RECORD:
4501 /* Seen only when opening a capture file for reading. */
4502 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4503 "The file \"%s\" appears to be damaged or corrupt.\n"
4505 filename, err_info);
4509 case WTAP_ERR_CANT_OPEN:
4511 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4512 "The file \"%s\" could not be created for some unknown reason.",
4515 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4516 "The file \"%s\" could not be opened for some unknown reason.",
4521 case WTAP_ERR_SHORT_READ:
4522 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4523 "The file \"%s\" appears to have been cut short"
4524 " in the middle of a packet or other data.",
4528 case WTAP_ERR_SHORT_WRITE:
4529 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4530 "A full header couldn't be written to the file \"%s\".",
4534 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4535 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4536 "Gzip compression not supported by this file type.");
4540 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4541 "The file \"%s\" could not be %s: %s.",
4543 for_writing ? "created" : "opened",
4544 wtap_strerror(err));
4549 open_failure_alert_box(filename, err, for_writing);
4554 file_rename_error_message(int err)
4557 static char errmsg_errno[1024+1];
4562 errmsg = "The path to the file \"%s\" doesn't exist.";
4566 errmsg = "You don't have permission to move the capture file to \"%s\".";
4570 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4571 "The file \"%%s\" could not be moved: %s.",
4572 wtap_strerror(err));
4573 errmsg = errmsg_errno;
4580 cf_read_error_message(int err, gchar *err_info)
4582 static char errmsg_errno[1024+1];
4586 case WTAP_ERR_UNSUPPORTED_ENCAP:
4587 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4588 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4593 case WTAP_ERR_BAD_RECORD:
4594 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4595 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4596 wtap_strerror(err), err_info);
4601 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4602 "An error occurred while reading from the file \"%%s\": %s.",
4603 wtap_strerror(err));
4606 return errmsg_errno;
4610 cf_write_failure_alert_box(const char *filename, int err)
4613 /* Wiretap error. */
4614 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4615 "An error occurred while writing to the file \"%s\": %s.",
4616 filename, wtap_strerror(err));
4619 write_failure_alert_box(filename, err);
4623 /* Check for write errors - if the file is being written to an NFS server,
4624 a write error may not show up until the file is closed, as NFS clients
4625 might not send writes to the server until the "write()" call finishes,
4626 so that the write may fail on the server but the "write()" may succeed. */
4628 cf_close_failure_alert_box(const char *filename, int err)
4631 /* Wiretap error. */
4634 case WTAP_ERR_CANT_CLOSE:
4635 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4636 "The file \"%s\" couldn't be closed for some unknown reason.",
4640 case WTAP_ERR_SHORT_WRITE:
4641 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4642 "Not all the packets could be written to the file \"%s\".",
4647 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4648 "An error occurred while closing the file \"%s\": %s.",
4649 filename, wtap_strerror(err));
4654 We assume that a close error from the OS is really a write error. */
4655 write_failure_alert_box(filename, err);
4659 /* Reload the current capture file. */
4661 cf_reload(capture_file *cf) {
4663 gboolean is_tempfile;
4666 /* If the file could be opened, "cf_open()" calls "cf_close()"
4667 to get rid of state for the old capture file before filling in state
4668 for the new capture file. "cf_close()" will remove the file if
4669 it's a temporary file; we don't want that to happen (for one thing,
4670 it'd prevent subsequent reopens from working). Remember whether it's
4671 a temporary file, mark it as not being a temporary file, and then
4672 reopen it as the type of file it was.
4674 Also, "cf_close()" will free "cf->filename", so we must make
4675 a copy of it first. */
4676 filename = g_strdup(cf->filename);
4677 is_tempfile = cf->is_tempfile;
4678 cf->is_tempfile = FALSE;
4679 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4680 switch (cf_read(cf)) {
4684 /* Just because we got an error, that doesn't mean we were unable
4685 to read any of the file; we handle what we could get from the
4689 case CF_READ_ABORTED:
4690 /* The user bailed out of re-reading the capture file; the
4691 capture file has been closed - just free the capture file name
4692 string and return (without changing the last containing
4698 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4699 Instead, the file was left open, so we should restore "cf->is_tempfile"
4702 XXX - change the menu? Presumably "cf_open()" will do that;
4703 make sure it does! */
4704 cf->is_tempfile = is_tempfile;
4706 /* "cf_open()" made a copy of the file name we handed it, so
4707 we should free up our copy. */