6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
62 #include <epan/prefs.h>
63 #include <epan/dfilter/dfilter.h>
64 #include <epan/epan_dissect.h>
66 #include <epan/dissectors/packet-data.h>
67 #include <epan/dissectors/packet-ber.h>
68 #include <epan/timestamp.h>
69 #include <epan/dfilter/dfilter-macro.h>
70 #include <wsutil/file_util.h>
71 #include <epan/strutil.h>
72 #include <epan/addr_resolv.h>
74 #include "ui/alert_box.h"
75 #include "ui/simple_dialog.h"
76 #include "ui/main_statusbar.h"
77 #include "ui/progress_dlg.h"
78 #include "ui/ui_util.h"
81 gboolean auto_scroll_live;
84 static guint32 cum_bytes;
85 static nstime_t first_ts;
86 static nstime_t prev_dis_ts;
87 static nstime_t prev_cap_ts;
89 static gulong computed_elapsed;
91 static void cf_reset_state(capture_file *cf);
93 static int read_packet(capture_file *cf, dfilter_t *dfcode,
94 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
96 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
97 gboolean refilter, gboolean redissect);
104 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
106 static void match_subtree_text(proto_node *node, gpointer data);
107 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
111 static match_result match_ascii(capture_file *cf, frame_data *fdata,
113 static match_result match_unicode(capture_file *cf, frame_data *fdata,
115 static match_result match_binary(capture_file *cf, frame_data *fdata,
117 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
119 static match_result match_marked(capture_file *cf, frame_data *fdata,
121 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
123 static gboolean find_packet(capture_file *cf,
124 match_result (*match_function)(capture_file *, frame_data *, void *),
125 void *criterion, search_direction dir);
127 static void cf_open_failure_alert_box(const char *filename, int err,
128 gchar *err_info, gboolean for_writing,
130 static const char *file_rename_error_message(int err);
131 static void cf_close_failure_alert_box(const char *filename, int err);
132 static void ref_time_packets(capture_file *cf);
133 /* Update the progress bar this many times when reading a file. */
134 #define N_PROGBAR_UPDATES 100
135 /* We read around 200k/100ms don't update the progress bar more often than that */
136 #define MIN_QUANTUM 200000
137 #define MIN_NUMBER_OF_PACKET 1500
140 * We could probably use g_signal_...() instead of the callbacks below but that
141 * would require linking our CLI programs to libgobject and creating an object
142 * instance for the signals.
145 cf_callback_t cb_fct;
147 } cf_callback_data_t;
149 static GList *cf_callbacks = NULL;
152 cf_callback_invoke(int event, gpointer data)
154 cf_callback_data_t *cb;
155 GList *cb_item = cf_callbacks;
157 /* there should be at least one interested */
158 g_assert(cb_item != NULL);
160 while(cb_item != NULL) {
162 cb->cb_fct(event, data, cb->user_data);
163 cb_item = g_list_next(cb_item);
169 cf_callback_add(cf_callback_t func, gpointer user_data)
171 cf_callback_data_t *cb;
173 cb = g_malloc(sizeof(cf_callback_data_t));
175 cb->user_data = user_data;
177 cf_callbacks = g_list_append(cf_callbacks, cb);
181 cf_callback_remove(cf_callback_t func)
183 cf_callback_data_t *cb;
184 GList *cb_item = cf_callbacks;
186 while(cb_item != NULL) {
188 if(cb->cb_fct == func) {
189 cf_callbacks = g_list_remove(cf_callbacks, cb);
193 cb_item = g_list_next(cb_item);
196 g_assert_not_reached();
200 cf_timestamp_auto_precision(capture_file *cf)
203 int prec = timestamp_get_precision();
206 /* don't try to get the file's precision if none is opened */
207 if(cf->state == FILE_CLOSED) {
211 /* if we are in auto mode, set precision of current file */
212 if(prec == TS_PREC_AUTO ||
213 prec == TS_PREC_AUTO_SEC ||
214 prec == TS_PREC_AUTO_DSEC ||
215 prec == TS_PREC_AUTO_CSEC ||
216 prec == TS_PREC_AUTO_MSEC ||
217 prec == TS_PREC_AUTO_USEC ||
218 prec == TS_PREC_AUTO_NSEC)
220 switch(wtap_file_tsprecision(cf->wth)) {
221 case(WTAP_FILE_TSPREC_SEC):
222 timestamp_set_precision(TS_PREC_AUTO_SEC);
224 case(WTAP_FILE_TSPREC_DSEC):
225 timestamp_set_precision(TS_PREC_AUTO_DSEC);
227 case(WTAP_FILE_TSPREC_CSEC):
228 timestamp_set_precision(TS_PREC_AUTO_CSEC);
230 case(WTAP_FILE_TSPREC_MSEC):
231 timestamp_set_precision(TS_PREC_AUTO_MSEC);
233 case(WTAP_FILE_TSPREC_USEC):
234 timestamp_set_precision(TS_PREC_AUTO_USEC);
236 case(WTAP_FILE_TSPREC_NSEC):
237 timestamp_set_precision(TS_PREC_AUTO_NSEC);
240 g_assert_not_reached();
243 /* Set the column widths of those columns that show the time in
244 "command-line-specified" format. */
245 for (i = 0; i < cf->cinfo.num_cols; i++) {
246 if (col_has_time_fmt(&cf->cinfo, i)) {
247 new_packet_list_resize_column(i);
253 cf_get_computed_elapsed(void)
255 return computed_elapsed;
258 static void reset_elapsed(void)
260 computed_elapsed = 0;
263 static void compute_elapsed(GTimeVal *start_time)
268 g_get_current_time(&time_now);
270 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
271 time_now.tv_usec - start_time->tv_usec;
273 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
277 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
282 wth = wtap_open_offline(fname, err, &err_info, TRUE);
286 /* The open succeeded. Close whatever capture file we had open,
287 and fill in the information for this file. */
290 /* Cleanup all data structures used for dissection. */
291 cleanup_dissection();
292 /* Initialize all data structures used for dissection. */
295 /* We're about to start reading the file. */
296 cf->state = FILE_READ_IN_PROGRESS;
301 /* Set the file name because we need it to set the follow stream filter.
302 XXX - is that still true? We need it for other reasons, though,
304 cf->filename = g_strdup(fname);
306 /* Indicate whether it's a permanent or temporary file. */
307 cf->is_tempfile = is_tempfile;
309 /* If it's a temporary capture buffer file, mark it as not saved. */
310 cf->user_saved = !is_tempfile;
314 cf->cd_t = wtap_file_type(cf->wth);
316 cf->displayed_count = 0;
317 cf->marked_count = 0;
318 cf->ignored_count = 0;
319 cf->ref_time_count = 0;
320 cf->drops_known = FALSE;
322 cf->snap = wtap_snapshot_length(cf->wth);
324 /* Snapshot length not known. */
325 cf->has_snap = FALSE;
326 cf->snap = WTAP_MAX_PACKET_SIZE;
330 /* Allocate a frame_data_sequence for the frames in this file */
331 cf->frames = new_frame_data_sequence();
333 nstime_set_zero(&cf->elapsed_time);
334 nstime_set_unset(&first_ts);
335 nstime_set_unset(&prev_dis_ts);
336 nstime_set_unset(&prev_cap_ts);
339 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
340 cf_timestamp_auto_precision(cf);
342 new_packet_list_queue_draw();
343 fileset_file_opened(fname);
345 if(cf->cd_t == WTAP_FILE_BER) {
346 /* tell the BER dissector the file name */
347 ber_set_filename(cf->filename);
350 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
351 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
356 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
362 * Reset the state for the currently closed file, but don't do the
363 * UI callbacks; this is for use in "cf_open()", where we don't
364 * want the UI to go from "file open" to "file closed" back to
365 * "file open", we want it to go from "old file open" to "new file
366 * open and being read".
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 dfilter_free(cf->rfcode);
391 if (cf->frames != NULL) {
392 free_frame_data_sequence(cf->frames);
395 #ifdef WANT_PACKET_EDITOR
396 if (cf->edited_frames) {
397 g_tree_destroy(cf->edited_frames);
398 cf->edited_frames = NULL;
401 cf_unselect_packet(cf); /* nothing to select */
402 cf->first_displayed = 0;
403 cf->last_displayed = 0;
405 /* No frames, no frame selected, no field in that frame selected. */
407 cf->current_frame = 0;
409 cf->finfo_selected = NULL;
411 /* Clear the packet list. */
412 new_packet_list_freeze();
413 new_packet_list_clear();
414 new_packet_list_thaw();
417 nstime_set_zero(&cf->elapsed_time);
419 reset_tap_listeners();
421 /* We have no file open. */
422 cf->state = FILE_CLOSED;
424 fileset_file_closed();
427 /* Reset everything to a pristine state */
429 cf_close(capture_file *cf)
431 /* do GUI things even if file is already closed,
432 * e.g. to cleanup things if a capture couldn't be started */
433 cf_callback_invoke(cf_cb_file_closing, cf);
435 /* close things, if not already closed before */
436 if(cf->state != FILE_CLOSED) {
437 color_filters_cleanup();
439 cleanup_dissection();
442 cf_callback_invoke(cf_cb_file_closed, cf);
445 /* an out of memory exception occured, wait for a user button press to exit */
446 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
452 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
456 progbar_val = (gfloat) file_pos / (gfloat) size;
457 if (progbar_val > 1.0) {
459 /* The file probably grew while we were reading it.
460 * Update file size, and try again.
462 size = wtap_file_size(cf->wth, NULL);
465 progbar_val = (gfloat) file_pos / (gfloat) size;
467 /* If it's still > 1, either "wtap_file_size()" failed (in which
468 * case there's not much we can do about it), or the file
469 * *shrank* (in which case there's not much we can do about
470 * it); just clip the progress value at 1.0.
472 if (progbar_val > 1.0f)
476 g_snprintf(status_str, status_size,
477 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
478 file_pos / 1024, size / 1024);
484 cf_read(capture_file *cf, gboolean from_save)
488 const gchar *name_ptr;
490 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;
510 /* Compile the current display filter.
511 * We assume this will not fail since cf->dfilter is only set in
512 * cf_filter IFF the filter was valid.
514 compiled = dfilter_compile(cf->dfilter, &dfcode);
515 g_assert(!cf->dfilter || (compiled && dfcode));
517 /* Do we have any tap listeners with filters? */
518 filtering_tap_listeners = have_filtering_tap_listeners();
520 /* Get the union of the flags for all tap listeners. */
521 tap_flags = union_of_tap_listener_flags();
523 reset_tap_listeners();
525 name_ptr = get_basename(cf->filename);
527 if (from_save == FALSE)
528 cf_callback_invoke(cf_cb_file_read_started, cf);
530 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
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 /* The packet list window will be empty untill the file is completly loaded */
549 new_packet_list_freeze();
552 g_get_current_time(&start_time);
554 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
557 file_pos = wtap_read_so_far(cf->wth);
559 /* Create the progress bar if necessary.
560 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
562 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
563 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
564 if (from_save == FALSE)
565 progbar = delayed_create_progress_dlg("Loading", name_ptr,
566 TRUE, &stop_flag, &start_time, progbar_val);
568 progbar = delayed_create_progress_dlg("Saving", name_ptr,
569 TRUE, &stop_flag, &start_time, progbar_val);
572 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
573 when we update it, we have to run the GTK+ main loop to get it
574 to repaint what's pending, and doing so may involve an "ioctl()"
575 to see if there's any pending input from an X server, and doing
576 that for every packet can be costly, especially on a big file. */
577 if (file_pos >= progbar_nextstep) {
578 if (progbar != NULL) {
579 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
580 /* update the packet bar content on the first run or frequently on very large files */
582 if (progbar_quantum > 500000 || displayed_once == 0) {
583 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
585 packets_bar_update();
588 #endif /* HAVE_LIBPCAP */
589 update_progress_dlg(progbar, progbar_val, status_str);
591 progbar_nextstep += progbar_quantum;
596 /* Well, the user decided to abort the read. He/She will be warned and
597 it might be enough for him/her to work with the already loaded
599 This is especially true for very large capture files, where you don't
600 want to wait loading the whole file (which may last minutes or even
601 hours even on fast machines) just to see that it was the wrong file. */
605 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
607 CATCH(OutOfMemoryError) {
610 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
611 "%sOut Of Memory!%s\n"
613 "Sorry, but Wireshark has to terminate now!\n"
615 "Some infos / workarounds can be found at:\n"
616 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
617 simple_dialog_primary_start(), simple_dialog_primary_end());
618 /* we have to terminate, as we cannot recover from the memory error */
619 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
621 main_window_update();
622 /* XXX - how to avoid a busy wait? */
630 /* Cleanup and release all dfilter resources */
632 dfilter_free(dfcode);
635 /* We're done reading the file; destroy the progress bar if it was created. */
637 destroy_progress_dlg(progbar);
639 /* We're done reading sequentially through the file. */
640 cf->state = FILE_READ_DONE;
642 /* Close the sequential I/O side, to free up memory it requires. */
643 wtap_sequential_close(cf->wth);
645 /* Allow the protocol dissectors to free up memory that they
646 * don't need after the sequential run-through of the packets. */
647 postseq_cleanup_all_protocols();
649 /* compute the time it took to load the file */
650 compute_elapsed(&start_time);
652 /* Set the file encapsulation type now; we don't know what it is until
653 we've looked at all the packets, as we don't know until then whether
654 there's more than one type (and thus whether it's
655 WTAP_ENCAP_PER_PACKET). */
656 cf->lnk_t = wtap_file_encap(cf->wth);
658 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
661 new_packet_list_thaw();
662 if (from_save == FALSE)
663 cf_callback_invoke(cf_cb_file_read_finished, cf);
665 cf_callback_invoke(cf_cb_file_save_finished, cf);
667 /* If we have any displayed packets to select, select the first of those
668 packets by making the first row the selected row. */
669 if (cf->first_displayed != 0){
670 new_packet_list_select_first_row();
674 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
675 "%sFile loading was cancelled!%s\n"
677 "The remaining packets in the file were discarded.\n"
679 "As a lot of packets from the original file will be missing,\n"
680 "remember to be careful when saving the current content to a file.\n",
681 simple_dialog_primary_start(), simple_dialog_primary_end());
682 return CF_READ_ERROR;
686 /* Put up a message box noting that the read failed somewhere along
687 the line. Don't throw out the stuff we managed to read, though,
691 case WTAP_ERR_UNSUPPORTED:
692 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
693 "The capture file contains record data that TShark doesn't support.\n(%s)",
696 errmsg = errmsg_errno;
699 case WTAP_ERR_UNSUPPORTED_ENCAP:
700 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
701 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
704 errmsg = errmsg_errno;
707 case WTAP_ERR_CANT_READ:
708 errmsg = "An attempt to read from the capture file failed for"
709 " some unknown reason.";
712 case WTAP_ERR_SHORT_READ:
713 errmsg = "The capture file appears to have been cut short"
714 " in the middle of a packet.";
717 case WTAP_ERR_BAD_FILE:
718 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
719 "The capture file appears to be damaged or corrupt.\n(%s)",
722 errmsg = errmsg_errno;
725 case WTAP_ERR_DECOMPRESS:
726 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
727 "The compressed capture file appears to be damaged or corrupt.\n"
730 errmsg = errmsg_errno;
734 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
735 "An error occurred while reading the"
736 " capture file: %s.", wtap_strerror(err));
737 errmsg = errmsg_errno;
740 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
741 return CF_READ_ERROR;
748 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
750 cf_status_t cf_status;
752 cf_status = cf_open(cf, fname, is_tempfile, err);
757 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
759 gint64 data_offset = 0;
761 volatile int newly_displayed_packets = 0;
763 gboolean filtering_tap_listeners;
767 /* Compile the current display filter.
768 * We assume this will not fail since cf->dfilter is only set in
769 * cf_filter IFF the filter was valid.
771 compiled = dfilter_compile(cf->dfilter, &dfcode);
772 g_assert(!cf->dfilter || (compiled && dfcode));
774 /* Do we have any tap listeners with filters? */
775 filtering_tap_listeners = have_filtering_tap_listeners();
777 /* Get the union of the flags for all tap listeners. */
778 tap_flags = union_of_tap_listener_flags();
782 new_packet_list_check_end();
783 /* Don't freeze/thaw the list when doing live capture */
784 /*new_packet_list_freeze();*/
786 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
788 while (to_read != 0) {
789 wtap_cleareof(cf->wth);
790 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
793 if (cf->state == FILE_READ_ABORTED) {
794 /* Well, the user decided to exit Wireshark. Break out of the
795 loop, and let the code below (which is called even if there
796 aren't any packets left to read) exit. */
800 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
801 data_offset) != -1) {
802 newly_displayed_packets++;
805 CATCH(OutOfMemoryError) {
808 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
809 "%sOut Of Memory!%s\n"
811 "Sorry, but Wireshark has to terminate now!\n"
813 "The capture file is not lost, it can be found at:\n"
816 "Some infos / workarounds can be found at:\n"
817 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
818 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
819 /* we have to terminate, as we cannot recover from the memory error */
820 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
822 main_window_update();
823 /* XXX - how to avoid a busy wait? */
826 /* Don't freeze/thaw the list when doing live capture */
827 /*new_packet_list_thaw();*/
828 return CF_READ_ABORTED;
834 /* Cleanup and release all dfilter resources */
836 dfilter_free(dfcode);
839 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
840 cf->count, cf->state, *err);*/
842 /* Don't freeze/thaw the list when doing live capture */
843 /*new_packet_list_thaw();*/
844 /* With the new packet list the first packet
845 * isn't automatically selected.
847 if(!cf->current_frame)
848 new_packet_list_select_first_row();
850 /* moving to the end of the packet list - if the user requested so and
851 we have some new packets. */
852 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
853 new_packet_list_moveto_end();
855 if (cf->state == FILE_READ_ABORTED) {
856 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
857 so that our caller can kill off the capture child process;
858 this will cause an EOF on the pipe from the child, so
859 "cf_finish_tail()" will be called, and it will clean up
861 return CF_READ_ABORTED;
862 } else if (*err != 0) {
863 /* We got an error reading the capture file.
864 XXX - pop up a dialog box instead? */
865 g_warning("Error \"%s\" while reading: \"%s\"\n",
866 wtap_strerror(*err), cf->filename);
868 return CF_READ_ERROR;
874 cf_fake_continue_tail(capture_file *cf) {
875 cf->state = FILE_READ_DONE;
879 cf_finish_tail(capture_file *cf, int *err)
884 gboolean filtering_tap_listeners;
888 /* Compile the current display filter.
889 * We assume this will not fail since cf->dfilter is only set in
890 * cf_filter IFF the filter was valid.
892 compiled = dfilter_compile(cf->dfilter, &dfcode);
893 g_assert(!cf->dfilter || (compiled && dfcode));
895 /* Do we have any tap listeners with filters? */
896 filtering_tap_listeners = have_filtering_tap_listeners();
898 /* Get the union of the flags for all tap listeners. */
899 tap_flags = union_of_tap_listener_flags();
901 if(cf->wth == NULL) {
903 return CF_READ_ERROR;
906 new_packet_list_check_end();
907 /* Don't freeze/thaw the list when doing live capture */
908 /*new_packet_list_freeze();*/
910 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
911 if (cf->state == FILE_READ_ABORTED) {
912 /* Well, the user decided to abort the read. Break out of the
913 loop, and let the code below (which is called even if there
914 aren't any packets left to read) exit. */
917 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
920 /* Cleanup and release all dfilter resources */
922 dfilter_free(dfcode);
925 /* Don't freeze/thaw the list when doing live capture */
926 /*new_packet_list_thaw();*/
928 if (cf->state == FILE_READ_ABORTED) {
929 /* Well, the user decided to abort the read. We're only called
930 when the child capture process closes the pipe to us (meaning
931 it's probably exited), so we can just close the capture
932 file; we return CF_READ_ABORTED so our caller can do whatever
933 is appropriate when that happens. */
935 return CF_READ_ABORTED;
938 if (auto_scroll_live && cf->count != 0)
939 new_packet_list_moveto_end();
941 /* We're done reading sequentially through the file. */
942 cf->state = FILE_READ_DONE;
944 /* We're done reading sequentially through the file; close the
945 sequential I/O side, to free up memory it requires. */
946 wtap_sequential_close(cf->wth);
948 /* Allow the protocol dissectors to free up memory that they
949 * don't need after the sequential run-through of the packets. */
950 postseq_cleanup_all_protocols();
952 /* Set the file encapsulation type now; we don't know what it is until
953 we've looked at all the packets, as we don't know until then whether
954 there's more than one type (and thus whether it's
955 WTAP_ENCAP_PER_PACKET). */
956 cf->lnk_t = wtap_file_encap(cf->wth);
959 /* We got an error reading the capture file.
960 XXX - pop up a dialog box? */
961 return CF_READ_ERROR;
966 #endif /* HAVE_LIBPCAP */
969 cf_get_display_name(capture_file *cf)
971 const gchar *displayname;
973 /* Return a name to use in displays */
974 if (!cf->is_tempfile) {
975 /* Get the last component of the file name, and use that. */
977 displayname = get_basename(cf->filename);
979 displayname="(No file)";
982 /* The file we read is a temporary file from a live capture;
983 we don't mention its name. */
985 displayname = cf->source;
987 displayname = "(Untitled)";
993 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
999 cf->source = g_strdup(source);
1001 cf->source = g_strdup("");
1005 const gchar *cf_get_tempfile_source(capture_file *cf) {
1013 /* XXX - use a macro instead? */
1015 cf_get_packet_count(capture_file *cf)
1020 /* XXX - use a macro instead? */
1022 cf_set_packet_count(capture_file *cf, int packet_count)
1024 cf->count = packet_count;
1027 /* XXX - use a macro instead? */
1029 cf_is_tempfile(capture_file *cf)
1031 return cf->is_tempfile;
1034 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1036 cf->is_tempfile = is_tempfile;
1040 /* XXX - use a macro instead? */
1041 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1043 cf->drops_known = drops_known;
1046 /* XXX - use a macro instead? */
1047 void cf_set_drops(capture_file *cf, guint32 drops)
1052 /* XXX - use a macro instead? */
1053 gboolean cf_get_drops_known(capture_file *cf)
1055 return cf->drops_known;
1058 /* XXX - use a macro instead? */
1059 guint32 cf_get_drops(capture_file *cf)
1064 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1066 cf->rfcode = rfcode;
1070 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1071 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1073 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1075 gboolean add_to_packet_list)
1077 gboolean create_proto_tree = FALSE;
1082 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1084 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1085 &first_ts, &prev_dis_ts, &prev_cap_ts);
1088 + we have a display filter and are re-applying it;
1089 + we have tap listeners with filters;
1090 + we have tap listeners that require a protocol tree;
1092 allocate a protocol tree root node, so that we'll construct
1093 a protocol tree against which a filter expression can be
1095 if ((dfcode != NULL && refilter) ||
1096 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1097 create_proto_tree = TRUE;
1099 /* Dissect the frame. */
1100 epan_dissect_init(&edt, create_proto_tree, FALSE);
1102 if (dfcode != NULL && refilter) {
1103 epan_dissect_prime_dfilter(&edt, dfcode);
1106 tap_queue_init(&edt);
1107 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1108 tap_push_tapped_queue(&edt);
1110 /* If we have a display filter, apply it if we're refiltering, otherwise
1111 leave the "passed_dfilter" flag alone.
1113 If we don't have a display filter, set "passed_dfilter" to 1. */
1114 if (dfcode != NULL) {
1116 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1119 fdata->flags.passed_dfilter = 1;
1121 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1122 cf->displayed_count++;
1124 if (add_to_packet_list) {
1125 /* We fill the needed columns from new_packet_list */
1126 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1129 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1131 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1133 /* If we haven't yet seen the first frame, this is it.
1135 XXX - we must do this before we add the row to the display,
1136 as, if the display's GtkCList's selection mode is
1137 GTK_SELECTION_BROWSE, when the first entry is added to it,
1138 "cf_select_packet()" will be called, and it will fetch the row
1139 data for the 0th row, and will get a null pointer rather than
1140 "fdata", as "gtk_clist_append()" won't yet have returned and
1141 thus "gtk_clist_set_row_data()" won't yet have been called.
1143 We thus need to leave behind bread crumbs so that
1144 "cf_select_packet()" can find this frame. See the comment
1145 in "cf_select_packet()". */
1146 if (cf->first_displayed == 0)
1147 cf->first_displayed = fdata->num;
1149 /* This is the last frame we've seen so far. */
1150 cf->last_displayed = fdata->num;
1153 epan_dissect_cleanup(&edt);
1157 /* read in a new packet */
1158 /* returns the row of the new packet in the packet list or -1 if not displayed */
1160 read_packet(capture_file *cf, dfilter_t *dfcode,
1161 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1163 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1164 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1165 const guchar *buf = wtap_buf_ptr(cf->wth);
1172 /* The frame number of this packet is one more than the count of
1173 frames in this packet. */
1174 framenum = cf->count + 1;
1176 frame_data_init(&fdlocal, framenum, phdr, offset, cum_bytes);
1181 epan_dissect_init(&edt, TRUE, FALSE);
1182 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1183 epan_dissect_run(&edt, pseudo_header, buf, &fdlocal, NULL);
1184 passed = dfilter_apply_edt(cf->rfcode, &edt);
1185 epan_dissect_cleanup(&edt);
1189 /* This does a shallow copy of fdlocal, which is good enough. */
1190 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1193 cf->f_datalen = offset + fdlocal.cap_len;
1195 if (!cf->redissecting) {
1196 row = add_packet_to_packet_list(fdata, cf, dfcode,
1197 filtering_tap_listeners, tap_flags,
1198 pseudo_header, buf, TRUE, TRUE);
1206 cf_merge_files(char **out_filenamep, int in_file_count,
1207 char *const *in_filenames, int file_type, gboolean do_append)
1209 merge_in_file_t *in_files, *in_file;
1214 int open_err, read_err, write_err, close_err;
1218 char errmsg_errno[1024+1];
1220 gboolean got_read_error = FALSE, got_write_error = FALSE;
1222 progdlg_t *progbar = NULL;
1224 gint64 f_len, file_pos;
1226 GTimeVal start_time;
1227 gchar status_str[100];
1228 gint64 progbar_nextstep;
1229 gint64 progbar_quantum;
1231 /* open the input files */
1232 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1233 &open_err, &err_info, &err_fileno)) {
1235 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1240 if (*out_filenamep != NULL) {
1241 out_filename = *out_filenamep;
1242 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1246 out_fd = create_tempfile(&tmpname, "wireshark");
1249 out_filename = g_strdup(tmpname);
1250 *out_filenamep = out_filename;
1254 merge_close_in_files(in_file_count, in_files);
1256 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1260 pdh = wtap_dump_fdopen(out_fd, file_type,
1261 merge_select_frame_type(in_file_count, in_files),
1262 merge_max_snapshot_length(in_file_count, in_files),
1263 FALSE /* compressed */, &open_err);
1266 merge_close_in_files(in_file_count, in_files);
1268 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1273 /* Get the sum of the sizes of all the files. */
1275 for (i = 0; i < in_file_count; i++)
1276 f_len += in_files[i].size;
1278 /* Update the progress bar when it gets to this value. */
1279 progbar_nextstep = 0;
1280 /* When we reach the value that triggers a progress bar update,
1281 bump that value by this amount. */
1282 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1283 /* Progress so far. */
1287 g_get_current_time(&start_time);
1289 /* do the merge (or append) */
1292 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1295 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1297 if (in_file == NULL) {
1302 if (read_err != 0) {
1303 /* I/O error reading from in_file */
1304 got_read_error = TRUE;
1308 /* Get the sum of the data offsets in all of the files. */
1310 for (i = 0; i < in_file_count; i++)
1311 data_offset += in_files[i].data_offset;
1313 /* Create the progress bar if necessary.
1314 We check on every iteration of the loop, so that it takes no
1315 longer than the standard time to create it (otherwise, for a
1316 large file, we might take considerably longer than that standard
1317 time in order to get to the next progress bar step). */
1318 if (progbar == NULL) {
1319 progbar = delayed_create_progress_dlg("Merging", "files",
1320 FALSE, &stop_flag, &start_time, progbar_val);
1323 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1324 when we update it, we have to run the GTK+ main loop to get it
1325 to repaint what's pending, and doing so may involve an "ioctl()"
1326 to see if there's any pending input from an X server, and doing
1327 that for every packet can be costly, especially on a big file. */
1328 if (data_offset >= progbar_nextstep) {
1329 /* Get the sum of the seek positions in all of the files. */
1331 for (i = 0; i < in_file_count; i++)
1332 file_pos += wtap_read_so_far(in_files[i].wth);
1333 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1334 if (progbar_val > 1.0f) {
1335 /* Some file probably grew while we were reading it.
1336 That "shouldn't happen", so we'll just clip the progress
1340 if (progbar != NULL) {
1341 g_snprintf(status_str, sizeof(status_str),
1342 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1343 file_pos / 1024, f_len / 1024);
1344 update_progress_dlg(progbar, progbar_val, status_str);
1346 progbar_nextstep += progbar_quantum;
1350 /* Well, the user decided to abort the merge. */
1354 if (!wtap_dump(pdh, wtap_phdr(in_file->wth), wtap_pseudoheader(in_file->wth),
1355 wtap_buf_ptr(in_file->wth), &write_err)) {
1356 got_write_error = TRUE;
1361 /* We're done merging the files; destroy the progress bar if it was created. */
1362 if (progbar != NULL)
1363 destroy_progress_dlg(progbar);
1365 merge_close_in_files(in_file_count, in_files);
1366 if (!got_read_error && !got_write_error) {
1367 if (!wtap_dump_close(pdh, &write_err))
1368 got_write_error = TRUE;
1370 wtap_dump_close(pdh, &close_err);
1372 if (got_read_error) {
1374 * Find the file on which we got the error, and report the error.
1376 for (i = 0; i < in_file_count; i++) {
1377 if (in_files[i].state == GOT_ERROR) {
1378 /* Put up a message box noting that a read failed somewhere along
1382 case WTAP_ERR_UNSUPPORTED_ENCAP:
1383 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1384 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1387 errmsg = errmsg_errno;
1390 case WTAP_ERR_CANT_READ:
1391 errmsg = "An attempt to read from the capture file %s failed for"
1392 " some unknown reason.";
1395 case WTAP_ERR_SHORT_READ:
1396 errmsg = "The capture file %s appears to have been cut short"
1397 " in the middle of a packet.";
1400 case WTAP_ERR_BAD_FILE:
1401 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1402 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1405 errmsg = errmsg_errno;
1408 case WTAP_ERR_DECOMPRESS:
1409 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1410 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1413 errmsg = errmsg_errno;
1417 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1418 "An error occurred while reading the"
1419 " capture file %%s: %s.", wtap_strerror(read_err));
1420 errmsg = errmsg_errno;
1423 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1428 if (got_write_error) {
1429 /* Put up an alert box for the write error. */
1430 if (write_err < 0) {
1431 /* Wiretap error. */
1432 switch (write_err) {
1434 case WTAP_ERR_UNSUPPORTED_ENCAP:
1436 * This is a problem with the particular frame we're writing;
1437 * note that, and give the frame number.
1439 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1440 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1441 in_file->packet_num, in_file->filename,
1442 wtap_file_type_string(file_type));
1446 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1447 "An error occurred while writing to the file \"%s\": %s.",
1448 out_filename, wtap_strerror(write_err));
1453 write_failure_alert_box(out_filename, write_err);
1457 if (got_read_error || got_write_error || stop_flag) {
1458 /* Callers aren't expected to treat an error or an explicit abort
1459 differently - we put up error dialogs ourselves, so they don't
1467 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1469 const char *filter_new = dftext ? dftext : "";
1470 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1472 GTimeVal start_time;
1474 /* if new filter equals old one, do nothing unless told to do so */
1475 if (!force && strcmp(filter_new, filter_old) == 0) {
1481 if (dftext == NULL) {
1482 /* The new filter is an empty filter (i.e., display all packets).
1483 * so leave dfcode==NULL
1487 * We have a filter; make a copy of it (as we'll be saving it),
1488 * and try to compile it.
1490 dftext = g_strdup(dftext);
1491 if (!dfilter_compile(dftext, &dfcode)) {
1492 /* The attempt failed; report an error. */
1493 gchar *safe_dftext = simple_dialog_format_message(dftext);
1494 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1496 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1499 "The following display filter isn't a valid display filter:\n%s\n"
1500 "See the help for a description of the display filter syntax.",
1501 simple_dialog_primary_start(), safe_dfilter_error_msg,
1502 simple_dialog_primary_end(), safe_dftext);
1503 g_free(safe_dfilter_error_msg);
1504 g_free(safe_dftext);
1510 if (dfcode == NULL) {
1511 /* Yes - free the filter text, and set it to null. */
1517 /* We have a valid filter. Replace the current filter. */
1518 g_free(cf->dfilter);
1519 cf->dfilter = dftext;
1520 g_get_current_time(&start_time);
1523 /* Now rescan the packet list, applying the new filter, but not
1524 throwing away information constructed on a previous pass. */
1525 if (dftext == NULL) {
1526 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1528 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1531 /* Cleanup and release all dfilter resources */
1532 dfilter_free(dfcode);
1538 cf_reftime_packets(capture_file *cf)
1541 ref_time_packets(cf);
1545 cf_redissect_packets(capture_file *cf)
1547 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1551 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1552 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1556 char errmsg_errno[1024+1];
1558 #ifdef WANT_PACKET_EDITOR
1559 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1560 if (G_UNLIKELY(fdata->file_off == -1)) {
1561 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1564 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "fdata->file_off == -1, but can't find modified frame!");
1568 *pseudo_header = frame->ph;
1569 memcpy(pd, frame->pd, fdata->cap_len);
1574 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1575 fdata->cap_len, &err, &err_info)) {
1578 case WTAP_ERR_UNSUPPORTED_ENCAP:
1579 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1580 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1585 case WTAP_ERR_BAD_FILE:
1586 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1587 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1588 wtap_strerror(err), err_info);
1593 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1594 "An error occurred while reading from the file \"%%s\": %s.",
1595 wtap_strerror(err));
1598 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1605 cf_read_frame(capture_file *cf, frame_data *fdata)
1607 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1610 /* Rescan the list of packets, reconstructing the CList.
1612 "action" describes why we're doing this; it's used in the progress
1615 "action_item" describes what we're doing; it's used in the progress
1618 "refilter" is TRUE if we need to re-evaluate the filter expression.
1620 "redissect" is TRUE if we need to make the dissectors reconstruct
1621 any state information they have (because a preference that affects
1622 some dissector has changed, meaning some dissector might construct
1623 its state differently from the way it was constructed the last time). */
1625 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1626 gboolean refilter, gboolean redissect)
1628 /* Rescan packets new packet list */
1631 progdlg_t *progbar = NULL;
1634 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1635 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1636 gboolean selected_frame_seen;
1638 GTimeVal start_time;
1639 gchar status_str[100];
1640 int progbar_nextstep;
1641 int progbar_quantum;
1643 gboolean filtering_tap_listeners;
1645 gboolean add_to_packet_list = FALSE;
1648 /* Compile the current display filter.
1649 * We assume this will not fail since cf->dfilter is only set in
1650 * cf_filter IFF the filter was valid.
1652 compiled = dfilter_compile(cf->dfilter, &dfcode);
1653 g_assert(!cf->dfilter || (compiled && dfcode));
1655 /* Do we have any tap listeners with filters? */
1656 filtering_tap_listeners = have_filtering_tap_listeners();
1658 /* Get the union of the flags for all tap listeners. */
1659 tap_flags = union_of_tap_listener_flags();
1661 reset_tap_listeners();
1662 /* Which frame, if any, is the currently selected frame?
1663 XXX - should the selected frame or the focus frame be the "current"
1664 frame, that frame being the one from which "Find Frame" searches
1666 selected_frame = cf->current_frame;
1668 /* Mark frame num as not found */
1669 selected_frame_num = -1;
1671 /* Freeze the packet list while we redo it, so we don't get any
1672 screen updates while it happens. */
1673 new_packet_list_freeze();
1676 /* We need to re-initialize all the state information that protocols
1677 keep, because some preference that controls a dissector has changed,
1678 which might cause the state information to be constructed differently
1679 by that dissector. */
1681 /* We might receive new packets while redissecting, and we don't
1682 want to dissect those before their time. */
1683 cf->redissecting = TRUE;
1685 /* Cleanup all data structures used for dissection. */
1686 cleanup_dissection();
1687 /* Initialize all data structures used for dissection. */
1690 /* We need to redissect the packets so we have to discard our old
1691 * packet list store. */
1692 new_packet_list_clear();
1693 add_to_packet_list = TRUE;
1696 /* We don't yet know which will be the first and last frames displayed. */
1697 cf->first_displayed = 0;
1698 cf->last_displayed = 0;
1700 /* We currently don't display any packets */
1701 cf->displayed_count = 0;
1703 /* Iterate through the list of frames. Call a routine for each frame
1704 to check whether it should be displayed and, if so, add it to
1705 the display list. */
1706 nstime_set_unset(&first_ts);
1707 nstime_set_unset(&prev_dis_ts);
1708 nstime_set_unset(&prev_cap_ts);
1711 /* Update the progress bar when it gets to this value. */
1712 progbar_nextstep = 0;
1713 /* When we reach the value that triggers a progress bar update,
1714 bump that value by this amount. */
1715 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1716 /* Count of packets at which we've looked. */
1718 /* Progress so far. */
1722 g_get_current_time(&start_time);
1724 /* no previous row yet */
1725 prev_frame_num = -1;
1728 preceding_frame_num = -1;
1729 preceding_frame = NULL;
1730 following_frame_num = -1;
1731 following_frame = NULL;
1733 selected_frame_seen = FALSE;
1735 for (framenum = 1; framenum <= cf->count; framenum++) {
1736 fdata = frame_data_sequence_find(cf->frames, framenum);
1738 /* Create the progress bar if necessary.
1739 We check on every iteration of the loop, so that it takes no
1740 longer than the standard time to create it (otherwise, for a
1741 large file, we might take considerably longer than that standard
1742 time in order to get to the next progress bar step). */
1743 if (progbar == NULL)
1744 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1745 &stop_flag, &start_time,
1748 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1749 when we update it, we have to run the GTK+ main loop to get it
1750 to repaint what's pending, and doing so may involve an "ioctl()"
1751 to see if there's any pending input from an X server, and doing
1752 that for every packet can be costly, especially on a big file. */
1753 if (count >= progbar_nextstep) {
1754 /* let's not divide by zero. I should never be started
1755 * with count == 0, so let's assert that
1757 g_assert(cf->count > 0);
1758 progbar_val = (gfloat) count / cf->count;
1760 if (progbar != NULL) {
1761 g_snprintf(status_str, sizeof(status_str),
1762 "%4u of %u frames", count, cf->count);
1763 update_progress_dlg(progbar, progbar_val, status_str);
1766 progbar_nextstep += progbar_quantum;
1770 /* Well, the user decided to abort the filtering. Just stop.
1772 XXX - go back to the previous filter? Users probably just
1773 want not to wait for a filtering operation to finish;
1774 unless we cancel by having no filter, reverting to the
1775 previous filter will probably be even more expensive than
1776 continuing the filtering, as it involves going back to the
1777 beginning and filtering, and even with no filter we currently
1778 have to re-generate the entire clist, which is also expensive.
1780 I'm not sure what Network Monitor does, but it doesn't appear
1781 to give you an unfiltered display if you cancel. */
1788 /* Since all state for the frame was destroyed, mark the frame
1789 * as not visited, free the GSList referring to the state
1790 * data (the per-frame data itself was freed by
1791 * "init_dissection()"), and null out the GSList pointer. */
1792 fdata->flags.visited = 0;
1793 frame_data_cleanup(fdata);
1796 if (!cf_read_frame(cf, fdata))
1797 break; /* error reading the frame */
1799 /* If the previous frame is displayed, and we haven't yet seen the
1800 selected frame, remember that frame - it's the closest one we've
1801 yet seen before the selected frame. */
1802 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1803 preceding_frame_num = prev_frame_num;
1804 preceding_frame = prev_frame;
1806 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1807 tap_flags, &cf->pseudo_header, cf->pd,
1809 add_to_packet_list);
1811 /* If this frame is displayed, and this is the first frame we've
1812 seen displayed after the selected frame, remember this frame -
1813 it's the closest one we've yet seen at or after the selected
1815 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1816 following_frame_num = fdata->num;
1817 following_frame = fdata;
1819 if (fdata == selected_frame) {
1820 selected_frame_seen = TRUE;
1821 if (fdata->flags.passed_dfilter)
1822 selected_frame_num = fdata->num;
1825 /* Remember this frame - it'll be the previous frame
1826 on the next pass through the loop. */
1827 prev_frame_num = fdata->num;
1831 /* We are done redissecting the packet list. */
1832 cf->redissecting = FALSE;
1835 /* Clear out what remains of the visited flags and per-frame data
1838 XXX - that may cause various forms of bogosity when dissecting
1839 these frames, as they won't have been seen by this sequential
1840 pass, but the only alternative I see is to keep scanning them
1841 even though the user requested that the scan stop, and that
1842 would leave the user stuck with an Wireshark grinding on
1843 until it finishes. Should we just stick them with that? */
1844 for (; framenum <= cf->count; framenum++) {
1845 fdata = frame_data_sequence_find(cf->frames, framenum);
1846 fdata->flags.visited = 0;
1847 frame_data_cleanup(fdata);
1851 /* We're done filtering the packets; destroy the progress bar if it
1853 if (progbar != NULL)
1854 destroy_progress_dlg(progbar);
1856 /* Unfreeze the packet list. */
1857 if (!add_to_packet_list)
1858 new_packet_list_recreate_visible_rows();
1860 /* Compute the time it took to filter the file */
1861 compute_elapsed(&start_time);
1863 new_packet_list_thaw();
1865 if (selected_frame_num == -1) {
1866 /* The selected frame didn't pass the filter. */
1867 if (selected_frame == NULL) {
1868 /* That's because there *was* no selected frame. Make the first
1869 displayed frame the current frame. */
1870 selected_frame_num = 0;
1872 /* Find the nearest displayed frame to the selected frame (whether
1873 it's before or after that frame) and make that the current frame.
1874 If the next and previous displayed frames are equidistant from the
1875 selected frame, choose the next one. */
1876 g_assert(following_frame == NULL ||
1877 following_frame->num >= selected_frame->num);
1878 g_assert(preceding_frame == NULL ||
1879 preceding_frame->num <= selected_frame->num);
1880 if (following_frame == NULL) {
1881 /* No frame after the selected frame passed the filter, so we
1882 have to select the last displayed frame before the selected
1884 selected_frame_num = preceding_frame_num;
1885 selected_frame = preceding_frame;
1886 } else if (preceding_frame == NULL) {
1887 /* No frame before the selected frame passed the filter, so we
1888 have to select the first displayed frame after the selected
1890 selected_frame_num = following_frame_num;
1891 selected_frame = following_frame;
1893 /* Frames before and after the selected frame passed the filter, so
1894 we'll select the previous frame */
1895 selected_frame_num = preceding_frame_num;
1896 selected_frame = preceding_frame;
1901 if (selected_frame_num == -1) {
1902 /* There are no frames displayed at all. */
1903 cf_unselect_packet(cf);
1905 /* Either the frame that was selected passed the filter, or we've
1906 found the nearest displayed frame to that frame. Select it, make
1907 it the focus row, and make it visible. */
1908 /* Set to invalid to force update of packet list and packet details */
1909 cf->current_row = -1;
1910 if (selected_frame_num == 0) {
1911 new_packet_list_select_first_row();
1913 if (!new_packet_list_select_row_from_data(selected_frame)) {
1914 /* We didn't find a row corresponding to this frame.
1915 This means that the frame isn't being displayed currently,
1916 so we can't select it. */
1917 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1918 "%sEnd of capture exceeded!%s\n\n"
1919 "The capture file is probably not fully dissected.",
1920 simple_dialog_primary_start(), simple_dialog_primary_end());
1925 /* Cleanup and release all dfilter resources */
1926 dfilter_free(dfcode);
1931 * Scan trough all frame data and recalculate the ref time
1932 * without rereading the file.
1933 * XXX - do we need a progres bar or is this fast enough?
1936 ref_time_packets(capture_file *cf)
1941 nstime_set_unset(&first_ts);
1942 nstime_set_unset(&prev_dis_ts);
1945 for (framenum = 1; framenum <= cf->count; framenum++) {
1946 fdata = frame_data_sequence_find(cf->frames, framenum);
1948 /* just add some value here until we know if it is being displayed or not */
1949 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1955 /* If we don't have the time stamp of the first packet in the
1956 capture, it's because this is the first packet. Save the time
1957 stamp of this packet as the time stamp of the first packet. */
1958 if (nstime_is_unset(&first_ts)) {
1959 first_ts = fdata->abs_ts;
1961 /* if this frames is marked as a reference time frame, reset
1962 firstsec and firstusec to this frame */
1963 if(fdata->flags.ref_time){
1964 first_ts = fdata->abs_ts;
1967 /* If we don't have the time stamp of the previous displayed packet,
1968 it's because this is the first displayed packet. Save the time
1969 stamp of this packet as the time stamp of the previous displayed
1971 if (nstime_is_unset(&prev_dis_ts)) {
1972 prev_dis_ts = fdata->abs_ts;
1975 /* Get the time elapsed between the first packet and this packet. */
1976 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1978 /* If it's greater than the current elapsed time, set the elapsed time
1979 to it (we check for "greater than" so as not to be confused by
1980 time moving backwards). */
1981 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1982 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1983 cf->elapsed_time = fdata->rel_ts;
1986 /* If this frame is displayed, get the time elapsed between the
1987 previous displayed packet and this packet. */
1988 if( fdata->flags.passed_dfilter ) {
1989 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1990 prev_dis_ts = fdata->abs_ts;
1996 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
1997 /* This frame either passed the display filter list or is marked as
1998 a time reference frame. All time reference frames are displayed
1999 even if they dont pass the display filter */
2000 if(fdata->flags.ref_time){
2001 /* if this was a TIME REF frame we should reset the cum_bytes field */
2002 cum_bytes = fdata->pkt_len;
2003 fdata->cum_bytes = cum_bytes;
2005 /* increase cum_bytes with this packets length */
2006 cum_bytes += fdata->pkt_len;
2019 process_specified_packets(capture_file *cf, packet_range_t *range,
2020 const char *string1, const char *string2, gboolean terminate_is_stop,
2021 gboolean (*callback)(capture_file *, frame_data *,
2022 union wtap_pseudo_header *, const guint8 *, void *),
2023 void *callback_args)
2027 union wtap_pseudo_header pseudo_header;
2028 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2029 psp_return_t ret = PSP_FINISHED;
2031 progdlg_t *progbar = NULL;
2034 gboolean progbar_stop_flag;
2035 GTimeVal progbar_start_time;
2036 gchar progbar_status_str[100];
2037 int progbar_nextstep;
2038 int progbar_quantum;
2039 range_process_e process_this;
2041 /* Update the progress bar when it gets to this value. */
2042 progbar_nextstep = 0;
2043 /* When we reach the value that triggers a progress bar update,
2044 bump that value by this amount. */
2045 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2046 /* Count of packets at which we've looked. */
2048 /* Progress so far. */
2051 progbar_stop_flag = FALSE;
2052 g_get_current_time(&progbar_start_time);
2054 packet_range_process_init(range);
2056 /* Iterate through all the packets, printing the packets that
2057 were selected by the current display filter. */
2058 for (framenum = 1; framenum <= cf->count; framenum++) {
2059 fdata = frame_data_sequence_find(cf->frames, framenum);
2061 /* Create the progress bar if necessary.
2062 We check on every iteration of the loop, so that it takes no
2063 longer than the standard time to create it (otherwise, for a
2064 large file, we might take considerably longer than that standard
2065 time in order to get to the next progress bar step). */
2066 if (progbar == NULL)
2067 progbar = delayed_create_progress_dlg(string1, string2,
2070 &progbar_start_time,
2073 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2074 when we update it, we have to run the GTK+ main loop to get it
2075 to repaint what's pending, and doing so may involve an "ioctl()"
2076 to see if there's any pending input from an X server, and doing
2077 that for every packet can be costly, especially on a big file. */
2078 if (progbar_count >= progbar_nextstep) {
2079 /* let's not divide by zero. I should never be started
2080 * with count == 0, so let's assert that
2082 g_assert(cf->count > 0);
2083 progbar_val = (gfloat) progbar_count / cf->count;
2085 if (progbar != NULL) {
2086 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2087 "%4u of %u packets", progbar_count, cf->count);
2088 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2091 progbar_nextstep += progbar_quantum;
2094 if (progbar_stop_flag) {
2095 /* Well, the user decided to abort the operation. Just stop,
2096 and arrange to return PSP_STOPPED to our caller, so they know
2097 it was stopped explicitly. */
2104 /* do we have to process this packet? */
2105 process_this = packet_range_process_packet(range, fdata);
2106 if (process_this == range_process_next) {
2107 /* this packet uninteresting, continue with next one */
2109 } else if (process_this == range_processing_finished) {
2110 /* all interesting packets processed, stop the loop */
2114 /* Get the packet */
2115 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2116 /* Attempt to get the packet failed. */
2120 /* Process the packet */
2121 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2122 /* Callback failed. We assume it reported the error appropriately. */
2128 /* We're done printing the packets; destroy the progress bar if
2130 if (progbar != NULL)
2131 destroy_progress_dlg(progbar);
2137 gboolean construct_protocol_tree;
2139 } retap_callback_args_t;
2142 retap_packet(capture_file *cf _U_, frame_data *fdata,
2143 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2146 retap_callback_args_t *args = argsp;
2149 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2150 tap_queue_init(&edt);
2151 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2152 tap_push_tapped_queue(&edt);
2153 epan_dissect_cleanup(&edt);
2159 cf_retap_packets(capture_file *cf)
2161 packet_range_t range;
2162 retap_callback_args_t callback_args;
2163 gboolean filtering_tap_listeners;
2166 /* Do we have any tap listeners with filters? */
2167 filtering_tap_listeners = have_filtering_tap_listeners();
2169 tap_flags = union_of_tap_listener_flags();
2171 /* If any tap listeners have filters, or require the protocol tree,
2172 construct the protocol tree. */
2173 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2174 (tap_flags & TL_REQUIRES_PROTO_TREE);
2176 /* If any tap listeners require the columns, construct them. */
2177 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2179 /* Reset the tap listeners. */
2180 reset_tap_listeners();
2182 /* Iterate through the list of packets, dissecting all packets and
2183 re-running the taps. */
2184 packet_range_init(&range);
2185 packet_range_process_init(&range);
2186 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2187 "all packets", TRUE, retap_packet,
2190 /* Completed successfully. */
2194 /* Well, the user decided to abort the refiltering.
2195 Return CF_READ_ABORTED so our caller knows they did that. */
2196 return CF_READ_ABORTED;
2199 /* Error while retapping. */
2200 return CF_READ_ERROR;
2203 g_assert_not_reached();
2208 print_args_t *print_args;
2209 gboolean print_header_line;
2210 char *header_line_buf;
2211 int header_line_buf_len;
2212 gboolean print_formfeed;
2213 gboolean print_separator;
2217 } print_callback_args_t;
2220 print_packet(capture_file *cf, frame_data *fdata,
2221 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2224 print_callback_args_t *args = argsp;
2231 gboolean proto_tree_needed;
2232 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2233 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2235 /* Create the protocol tree, and make it visible, if we're printing
2236 the dissection or the hex data.
2237 XXX - do we need it if we're just printing the hex data? */
2239 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2240 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2242 /* Fill in the column information if we're printing the summary
2244 if (args->print_args->print_summary) {
2245 col_custom_prime_edt(&edt, &cf->cinfo);
2246 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2247 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2249 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2251 if (args->print_formfeed) {
2252 if (!new_page(args->print_args->stream))
2255 if (args->print_separator) {
2256 if (!print_line(args->print_args->stream, 0, ""))
2262 * We generate bookmarks, if the output format supports them.
2263 * The name is "__frameN__".
2265 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2267 if (args->print_args->print_summary) {
2268 if (args->print_header_line) {
2269 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2271 args->print_header_line = FALSE; /* we might not need to print any more */
2273 cp = &args->line_buf[0];
2275 for (i = 0; i < cf->cinfo.num_cols; i++) {
2276 /* Find the length of the string for this column. */
2277 column_len = (int) strlen(cf->cinfo.col_data[i]);
2278 if (args->col_widths[i] > column_len)
2279 column_len = args->col_widths[i];
2281 /* Make sure there's room in the line buffer for the column; if not,
2282 double its length. */
2283 line_len += column_len + 1; /* "+1" for space */
2284 if (line_len > args->line_buf_len) {
2285 cp_off = (int) (cp - args->line_buf);
2286 args->line_buf_len = 2 * line_len;
2287 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2288 cp = args->line_buf + cp_off;
2291 /* Right-justify the packet number column. */
2292 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2293 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2295 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2297 if (i != cf->cinfo.num_cols - 1)
2303 * Generate a bookmark, using the summary line as the title.
2305 if (!print_bookmark(args->print_args->stream, bookmark_name,
2309 if (!print_line(args->print_args->stream, 0, args->line_buf))
2313 * Generate a bookmark, using "Frame N" as the title, as we're not
2314 * printing the summary line.
2316 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2317 if (!print_bookmark(args->print_args->stream, bookmark_name,
2320 } /* if (print_summary) */
2322 if (args->print_args->print_dissections != print_dissections_none) {
2323 if (args->print_args->print_summary) {
2324 /* Separate the summary line from the tree with a blank line. */
2325 if (!print_line(args->print_args->stream, 0, ""))
2329 /* Print the information in that tree. */
2330 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2333 /* Print a blank line if we print anything after this (aka more than one packet). */
2334 args->print_separator = TRUE;
2336 /* Print a header line if we print any more packet summaries */
2337 args->print_header_line = TRUE;
2340 if (args->print_args->print_hex) {
2341 /* Print the full packet data as hex. */
2342 if (!print_hex_data(args->print_args->stream, &edt))
2345 /* Print a blank line if we print anything after this (aka more than one packet). */
2346 args->print_separator = TRUE;
2348 /* Print a header line if we print any more packet summaries */
2349 args->print_header_line = TRUE;
2350 } /* if (args->print_args->print_dissections != print_dissections_none) */
2352 epan_dissect_cleanup(&edt);
2354 /* do we want to have a formfeed between each packet from now on? */
2355 if(args->print_args->print_formfeed) {
2356 args->print_formfeed = TRUE;
2362 epan_dissect_cleanup(&edt);
2367 cf_print_packets(capture_file *cf, print_args_t *print_args)
2370 print_callback_args_t callback_args;
2378 callback_args.print_args = print_args;
2379 callback_args.print_header_line = TRUE;
2380 callback_args.header_line_buf = NULL;
2381 callback_args.header_line_buf_len = 256;
2382 callback_args.print_formfeed = FALSE;
2383 callback_args.print_separator = FALSE;
2384 callback_args.line_buf = NULL;
2385 callback_args.line_buf_len = 256;
2386 callback_args.col_widths = NULL;
2388 if (!print_preamble(print_args->stream, cf->filename)) {
2389 destroy_print_stream(print_args->stream);
2390 return CF_PRINT_WRITE_ERROR;
2393 if (print_args->print_summary) {
2394 /* We're printing packet summaries. Allocate the header line buffer
2395 and get the column widths. */
2396 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2398 /* Find the widths for each of the columns - maximum of the
2399 width of the title and the width of the data - and construct
2400 a buffer with a line containing the column titles. */
2401 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2402 cp = &callback_args.header_line_buf[0];
2404 for (i = 0; i < cf->cinfo.num_cols; i++) {
2405 /* Don't pad the last column. */
2406 if (i == cf->cinfo.num_cols - 1)
2407 callback_args.col_widths[i] = 0;
2409 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2410 data_width = get_column_char_width(get_column_format(i));
2411 if (data_width > callback_args.col_widths[i])
2412 callback_args.col_widths[i] = data_width;
2415 /* Find the length of the string for this column. */
2416 column_len = (int) strlen(cf->cinfo.col_title[i]);
2417 if (callback_args.col_widths[i] > column_len)
2418 column_len = callback_args.col_widths[i];
2420 /* Make sure there's room in the line buffer for the column; if not,
2421 double its length. */
2422 line_len += column_len + 1; /* "+1" for space */
2423 if (line_len > callback_args.header_line_buf_len) {
2424 cp_off = (int) (cp - callback_args.header_line_buf);
2425 callback_args.header_line_buf_len = 2 * line_len;
2426 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2427 callback_args.header_line_buf_len + 1);
2428 cp = callback_args.header_line_buf + cp_off;
2431 /* Right-justify the packet number column. */
2432 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2433 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2435 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2437 if (i != cf->cinfo.num_cols - 1)
2442 /* Now start out the main line buffer with the same length as the
2443 header line buffer. */
2444 callback_args.line_buf_len = callback_args.header_line_buf_len;
2445 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2446 } /* if (print_summary) */
2448 /* Iterate through the list of packets, printing the packets we were
2450 ret = process_specified_packets(cf, &print_args->range, "Printing",
2451 "selected packets", TRUE, print_packet,
2454 g_free(callback_args.header_line_buf);
2455 g_free(callback_args.line_buf);
2456 g_free(callback_args.col_widths);
2461 /* Completed successfully. */
2465 /* Well, the user decided to abort the printing.
2467 XXX - note that what got generated before they did that
2468 will get printed if we're piping to a print program; we'd
2469 have to write to a file and then hand that to the print
2470 program to make it actually not print anything. */
2474 /* Error while printing.
2476 XXX - note that what got generated before they did that
2477 will get printed if we're piping to a print program; we'd
2478 have to write to a file and then hand that to the print
2479 program to make it actually not print anything. */
2480 destroy_print_stream(print_args->stream);
2481 return CF_PRINT_WRITE_ERROR;
2484 if (!print_finale(print_args->stream)) {
2485 destroy_print_stream(print_args->stream);
2486 return CF_PRINT_WRITE_ERROR;
2489 if (!destroy_print_stream(print_args->stream))
2490 return CF_PRINT_WRITE_ERROR;
2496 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2497 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2503 /* Create the protocol tree, but don't fill in the column information. */
2504 epan_dissect_init(&edt, TRUE, TRUE);
2505 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2507 /* Write out the information in that tree. */
2508 proto_tree_write_pdml(&edt, fh);
2510 epan_dissect_cleanup(&edt);
2516 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2521 fh = ws_fopen(print_args->file, "w");
2523 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2525 write_pdml_preamble(fh, cf->filename);
2528 return CF_PRINT_WRITE_ERROR;
2531 /* Iterate through the list of packets, printing the packets we were
2533 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2534 "selected packets", TRUE,
2535 write_pdml_packet, fh);
2540 /* Completed successfully. */
2544 /* Well, the user decided to abort the printing. */
2548 /* Error while printing. */
2550 return CF_PRINT_WRITE_ERROR;
2553 write_pdml_finale(fh);
2556 return CF_PRINT_WRITE_ERROR;
2559 /* XXX - check for an error */
2566 write_psml_packet(capture_file *cf, frame_data *fdata,
2567 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2572 gboolean proto_tree_needed;
2574 /* Fill in the column information, only create the protocol tree
2575 if having custom columns. */
2576 proto_tree_needed = have_custom_cols(&cf->cinfo);
2577 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2578 col_custom_prime_edt(&edt, &cf->cinfo);
2579 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2580 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2582 /* Write out the information in that tree. */
2583 proto_tree_write_psml(&edt, fh);
2585 epan_dissect_cleanup(&edt);
2591 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2596 fh = ws_fopen(print_args->file, "w");
2598 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2600 write_psml_preamble(fh);
2603 return CF_PRINT_WRITE_ERROR;
2606 /* Iterate through the list of packets, printing the packets we were
2608 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2609 "selected packets", TRUE,
2610 write_psml_packet, fh);
2615 /* Completed successfully. */
2619 /* Well, the user decided to abort the printing. */
2623 /* Error while printing. */
2625 return CF_PRINT_WRITE_ERROR;
2628 write_psml_finale(fh);
2631 return CF_PRINT_WRITE_ERROR;
2634 /* XXX - check for an error */
2641 write_csv_packet(capture_file *cf, frame_data *fdata,
2642 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2647 gboolean proto_tree_needed;
2649 /* Fill in the column information, only create the protocol tree
2650 if having custom columns. */
2651 proto_tree_needed = have_custom_cols(&cf->cinfo);
2652 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2653 col_custom_prime_edt(&edt, &cf->cinfo);
2654 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2655 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2657 /* Write out the information in that tree. */
2658 proto_tree_write_csv(&edt, fh);
2660 epan_dissect_cleanup(&edt);
2666 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2671 fh = ws_fopen(print_args->file, "w");
2673 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2675 write_csv_preamble(fh);
2678 return CF_PRINT_WRITE_ERROR;
2681 /* Iterate through the list of packets, printing the packets we were
2683 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2684 "selected packets", TRUE,
2685 write_csv_packet, fh);
2690 /* Completed successfully. */
2694 /* Well, the user decided to abort the printing. */
2698 /* Error while printing. */
2700 return CF_PRINT_WRITE_ERROR;
2703 write_csv_finale(fh);
2706 return CF_PRINT_WRITE_ERROR;
2709 /* XXX - check for an error */
2716 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2717 union wtap_pseudo_header *pseudo_header,
2718 const guint8 *pd, void *argsp)
2723 epan_dissect_init(&edt, TRUE, TRUE);
2724 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2725 proto_tree_write_carrays(fdata->num, fh, &edt);
2726 epan_dissect_cleanup(&edt);
2732 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2737 fh = ws_fopen(print_args->file, "w");
2740 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2742 write_carrays_preamble(fh);
2746 return CF_PRINT_WRITE_ERROR;
2749 /* Iterate through the list of packets, printing the packets we were
2751 ret = process_specified_packets(cf, &print_args->range,
2753 "selected packets", TRUE,
2754 write_carrays_packet, fh);
2757 /* Completed successfully. */
2760 /* Well, the user decided to abort the printing. */
2763 /* Error while printing. */
2765 return CF_PRINT_WRITE_ERROR;
2768 write_carrays_finale(fh);
2772 return CF_PRINT_WRITE_ERROR;
2780 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2781 search_direction dir)
2785 mdata.string = string;
2786 mdata.string_len = strlen(string);
2787 return find_packet(cf, match_protocol_tree, &mdata, dir);
2791 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2793 mdata->frame_matched = FALSE;
2794 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2795 mdata->string_len = strlen(mdata->string);
2797 /* Iterate through all the nodes looking for matching text */
2798 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2799 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2803 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2805 match_data *mdata = criterion;
2808 /* Load the frame's data. */
2809 if (!cf_read_frame(cf, fdata)) {
2810 /* Attempt to get the packet failed. */
2814 /* Construct the protocol tree, including the displayed text */
2815 epan_dissect_init(&edt, TRUE, TRUE);
2816 /* We don't need the column information */
2817 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2819 /* Iterate through all the nodes, seeing if they have text that matches. */
2821 mdata->frame_matched = FALSE;
2822 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2823 epan_dissect_cleanup(&edt);
2824 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2828 match_subtree_text(proto_node *node, gpointer data)
2830 match_data *mdata = (match_data*) data;
2831 const gchar *string = mdata->string;
2832 size_t string_len = mdata->string_len;
2833 capture_file *cf = mdata->cf;
2834 field_info *fi = PNODE_FINFO(node);
2835 gchar label_str[ITEM_LABEL_LENGTH];
2842 g_assert(fi && "dissection with an invisible proto tree?");
2844 if (mdata->frame_matched) {
2845 /* We already had a match; don't bother doing any more work. */
2849 /* Don't match invisible entries. */
2850 if (PROTO_ITEM_IS_HIDDEN(node))
2853 /* was a free format label produced? */
2855 label_ptr = fi->rep->representation;
2857 /* no, make a generic label */
2858 label_ptr = label_str;
2859 proto_item_fill_label(fi, label_str);
2862 /* Does that label match? */
2863 label_len = strlen(label_ptr);
2864 for (i = 0; i < label_len; i++) {
2865 c_char = label_ptr[i];
2867 c_char = toupper(c_char);
2868 if (c_char == string[c_match]) {
2870 if (c_match == string_len) {
2871 /* No need to look further; we have a match */
2872 mdata->frame_matched = TRUE;
2880 /* Recurse into the subtree, if it exists */
2881 if (node->first_child != NULL)
2882 proto_tree_children_foreach(node, match_subtree_text, mdata);
2886 cf_find_packet_summary_line(capture_file *cf, const char *string,
2887 search_direction dir)
2891 mdata.string = string;
2892 mdata.string_len = strlen(string);
2893 return find_packet(cf, match_summary_line, &mdata, dir);
2897 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2899 match_data *mdata = criterion;
2900 const gchar *string = mdata->string;
2901 size_t string_len = mdata->string_len;
2903 const char *info_column;
2904 size_t info_column_len;
2905 match_result result = MR_NOTMATCHED;
2911 /* Load the frame's data. */
2912 if (!cf_read_frame(cf, fdata)) {
2913 /* Attempt to get the packet failed. */
2917 /* Don't bother constructing the protocol tree */
2918 epan_dissect_init(&edt, FALSE, FALSE);
2919 /* Get the column information */
2920 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2922 /* Find the Info column */
2923 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2924 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2925 /* Found it. See if we match. */
2926 info_column = edt.pi.cinfo->col_data[colx];
2927 info_column_len = strlen(info_column);
2928 for (i = 0; i < info_column_len; i++) {
2929 c_char = info_column[i];
2931 c_char = toupper(c_char);
2932 if (c_char == string[c_match]) {
2934 if (c_match == string_len) {
2935 result = MR_MATCHED;
2944 epan_dissect_cleanup(&edt);
2951 } cbs_t; /* "Counted byte string" */
2954 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2955 search_direction dir)
2960 info.data_len = string_size;
2962 /* String or hex search? */
2964 /* String search - what type of string? */
2965 switch (cf->scs_type) {
2967 case SCS_ASCII_AND_UNICODE:
2968 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2971 return find_packet(cf, match_ascii, &info, dir);
2974 return find_packet(cf, match_unicode, &info, dir);
2977 g_assert_not_reached();
2981 return find_packet(cf, match_binary, &info, dir);
2985 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2987 cbs_t *info = criterion;
2988 const guint8 *ascii_text = info->data;
2989 size_t textlen = info->data_len;
2990 match_result result;
2996 /* Load the frame's data. */
2997 if (!cf_read_frame(cf, fdata)) {
2998 /* Attempt to get the packet failed. */
3002 result = MR_NOTMATCHED;
3003 buf_len = fdata->pkt_len;
3005 while (i < buf_len) {
3008 c_char = toupper(c_char);
3009 if (c_char != '\0') {
3010 if (c_char == ascii_text[c_match]) {
3012 if (c_match == textlen) {
3013 result = MR_MATCHED;
3014 cf->search_pos = i; /* Save the position of the last character
3015 for highlighting the field. */
3020 g_assert(i>=c_match);
3021 i -= (guint32)c_match;
3031 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3033 cbs_t *info = criterion;
3034 const guint8 *ascii_text = info->data;
3035 size_t textlen = info->data_len;
3036 match_result result;
3042 /* Load the frame's data. */
3043 if (!cf_read_frame(cf, fdata)) {
3044 /* Attempt to get the packet failed. */
3048 result = MR_NOTMATCHED;
3049 buf_len = fdata->pkt_len;
3051 while (i < buf_len) {
3054 c_char = toupper(c_char);
3055 if (c_char == ascii_text[c_match]) {
3057 if (c_match == textlen) {
3058 result = MR_MATCHED;
3059 cf->search_pos = i; /* Save the position of the last character
3060 for highlighting the field. */
3065 g_assert(i>=c_match);
3066 i -= (guint32)c_match;
3076 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3078 cbs_t *info = criterion;
3079 const guint8 *ascii_text = info->data;
3080 size_t textlen = info->data_len;
3081 match_result result;
3087 /* Load the frame's data. */
3088 if (!cf_read_frame(cf, fdata)) {
3089 /* Attempt to get the packet failed. */
3093 result = MR_NOTMATCHED;
3094 buf_len = fdata->pkt_len;
3096 while (i < buf_len) {
3099 c_char = toupper(c_char);
3100 if (c_char == ascii_text[c_match]) {
3102 if (c_match == textlen) {
3103 result = MR_MATCHED;
3104 cf->search_pos = i; /* Save the position of the last character
3105 for highlighting the field. */
3111 g_assert(i>=(c_match*2));
3112 i -= (guint32)c_match*2;
3121 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3123 cbs_t *info = criterion;
3124 const guint8 *binary_data = info->data;
3125 size_t datalen = info->data_len;
3126 match_result result;
3131 /* Load the frame's data. */
3132 if (!cf_read_frame(cf, fdata)) {
3133 /* Attempt to get the packet failed. */
3137 result = MR_NOTMATCHED;
3138 buf_len = fdata->pkt_len;
3140 while (i < buf_len) {
3141 if (cf->pd[i] == binary_data[c_match]) {
3143 if (c_match == datalen) {
3144 result = MR_MATCHED;
3145 cf->search_pos = i; /* Save the position of the last character
3146 for highlighting the field. */
3151 g_assert(i>=c_match);
3152 i -= (guint32)c_match;
3161 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3162 search_direction dir)
3164 return find_packet(cf, match_dfilter, sfcode, dir);
3168 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3169 search_direction dir)
3174 if (!dfilter_compile(filter, &sfcode)) {
3176 * XXX - this shouldn't happen, as the filter string is machine
3181 if (sfcode == NULL) {
3183 * XXX - this shouldn't happen, as the filter string is machine
3188 result = find_packet(cf, match_dfilter, sfcode, dir);
3189 dfilter_free(sfcode);
3194 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3196 dfilter_t *sfcode = criterion;
3198 match_result result;
3200 /* Load the frame's data. */
3201 if (!cf_read_frame(cf, fdata)) {
3202 /* Attempt to get the packet failed. */
3206 epan_dissect_init(&edt, TRUE, FALSE);
3207 epan_dissect_prime_dfilter(&edt, sfcode);
3208 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3209 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3210 epan_dissect_cleanup(&edt);
3215 cf_find_packet_marked(capture_file *cf, search_direction dir)
3217 return find_packet(cf, match_marked, NULL, dir);
3221 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3223 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3227 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3229 return find_packet(cf, match_time_reference, NULL, dir);
3233 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3235 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3239 find_packet(capture_file *cf,
3240 match_result (*match_function)(capture_file *, frame_data *, void *),
3241 void *criterion, search_direction dir)
3243 frame_data *start_fd;
3246 frame_data *new_fd = NULL;
3247 progdlg_t *progbar = NULL;
3252 GTimeVal start_time;
3253 gchar status_str[100];
3254 int progbar_nextstep;
3255 int progbar_quantum;
3257 match_result result;
3259 start_fd = cf->current_frame;
3260 if (start_fd != NULL) {
3261 /* Iterate through the list of packets, starting at the packet we've
3262 picked, calling a routine to run the filter on the packet, see if
3263 it matches, and stop if so. */
3265 framenum = start_fd->num;
3267 /* Update the progress bar when it gets to this value. */
3268 progbar_nextstep = 0;
3269 /* When we reach the value that triggers a progress bar update,
3270 bump that value by this amount. */
3271 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3272 /* Progress so far. */
3276 g_get_current_time(&start_time);
3278 title = cf->sfilter?cf->sfilter:"";
3280 /* Create the progress bar if necessary.
3281 We check on every iteration of the loop, so that it takes no
3282 longer than the standard time to create it (otherwise, for a
3283 large file, we might take considerably longer than that standard
3284 time in order to get to the next progress bar step). */
3285 if (progbar == NULL)
3286 progbar = delayed_create_progress_dlg("Searching", title,
3287 FALSE, &stop_flag, &start_time, progbar_val);
3289 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3290 when we update it, we have to run the GTK+ main loop to get it
3291 to repaint what's pending, and doing so may involve an "ioctl()"
3292 to see if there's any pending input from an X server, and doing
3293 that for every packet can be costly, especially on a big file. */
3294 if (count >= progbar_nextstep) {
3295 /* let's not divide by zero. I should never be started
3296 * with count == 0, so let's assert that
3298 g_assert(cf->count > 0);
3300 progbar_val = (gfloat) count / cf->count;
3302 if (progbar != NULL) {
3303 g_snprintf(status_str, sizeof(status_str),
3304 "%4u of %u packets", count, cf->count);
3305 update_progress_dlg(progbar, progbar_val, status_str);
3308 progbar_nextstep += progbar_quantum;
3312 /* Well, the user decided to abort the search. Go back to the
3313 frame where we started. */
3318 /* Go past the current frame. */
3319 if (dir == SD_BACKWARD) {
3320 /* Go on to the previous frame. */
3321 if (framenum == 1) {
3323 * XXX - other apps have a bit more of a detailed message
3324 * for this, and instead of offering "OK" and "Cancel",
3325 * they offer things such as "Continue" and "Cancel";
3326 * we need an API for popping up alert boxes with
3327 * {Verb} and "Cancel".
3330 if (prefs.gui_find_wrap)
3332 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3333 framenum = cf->count; /* wrap around */
3337 statusbar_push_temporary_msg("Search reached the beginning.");
3338 framenum = start_fd->num; /* stay on previous packet */
3343 /* Go on to the next frame. */
3344 if (framenum == cf->count) {
3345 if (prefs.gui_find_wrap)
3347 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3348 framenum = 1; /* wrap around */
3352 statusbar_push_temporary_msg("Search reached the end.");
3353 framenum = start_fd->num; /* stay on previous packet */
3358 fdata = frame_data_sequence_find(cf->frames, framenum);
3362 /* Is this packet in the display? */
3363 if (fdata->flags.passed_dfilter) {
3364 /* Yes. Does it match the search criterion? */
3365 result = (*match_function)(cf, fdata, criterion);
3366 if (result == MR_ERROR) {
3367 /* Error; our caller has reported the error. Go back to the frame
3368 where we started. */
3371 } else if (result == MR_MATCHED) {
3372 /* Yes. Go to the new frame. */
3378 if (fdata == start_fd) {
3379 /* We're back to the frame we were on originally, and that frame
3380 doesn't match the search filter. The search failed. */
3385 /* We're done scanning the packets; destroy the progress bar if it
3387 if (progbar != NULL)
3388 destroy_progress_dlg(progbar);
3391 if (new_fd != NULL) {
3392 /* Find and select */
3393 cf->search_in_progress = TRUE;
3394 found = new_packet_list_select_row_from_data(new_fd);
3395 cf->search_in_progress = FALSE;
3396 cf->search_pos = 0; /* Reset the position */
3398 /* We didn't find a row corresponding to this frame.
3399 This means that the frame isn't being displayed currently,
3400 so we can't select it. */
3401 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3402 "%sEnd of capture exceeded!%s\n\n"
3403 "The capture file is probably not fully dissected.",
3404 simple_dialog_primary_start(), simple_dialog_primary_end());
3407 return TRUE; /* success */
3409 return FALSE; /* failure */
3413 cf_goto_frame(capture_file *cf, guint fnumber)
3417 fdata = frame_data_sequence_find(cf->frames, fnumber);
3419 if (fdata == NULL) {
3420 /* we didn't find a packet with that packet number */
3421 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3422 return FALSE; /* we failed to go to that packet */
3424 if (!fdata->flags.passed_dfilter) {
3425 /* that packet currently isn't displayed */
3426 /* XXX - add it to the set of displayed packets? */
3427 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3428 return FALSE; /* we failed to go to that packet */
3431 if (!new_packet_list_select_row_from_data(fdata)) {
3432 /* We didn't find a row corresponding to this frame.
3433 This means that the frame isn't being displayed currently,
3434 so we can't select it. */
3435 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3436 "%sEnd of capture exceeded!%s\n\n"
3437 "The capture file is probably not fully dissected.",
3438 simple_dialog_primary_start(), simple_dialog_primary_end());
3441 return TRUE; /* we got to that packet */
3445 cf_goto_top_frame(void)
3447 /* Find and select */
3448 new_packet_list_select_first_row();
3449 return TRUE; /* we got to that packet */
3453 cf_goto_bottom_frame(void)
3455 /* Find and select */
3456 new_packet_list_select_last_row();
3457 return TRUE; /* we got to that packet */
3461 * Go to frame specified by currently selected protocol tree item.
3464 cf_goto_framenum(capture_file *cf)
3466 header_field_info *hfinfo;
3469 if (cf->finfo_selected) {
3470 hfinfo = cf->finfo_selected->hfinfo;
3472 if (hfinfo->type == FT_FRAMENUM) {
3473 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3475 return cf_goto_frame(cf, framenum);
3482 /* Select the packet on a given row. */
3484 cf_select_packet(capture_file *cf, int row)
3488 /* Get the frame data struct pointer for this frame */
3489 fdata = new_packet_list_get_row_data(row);
3491 if (fdata == NULL) {
3492 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3493 the first entry is added to it by "real_insert_row()", that row
3494 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3495 our version and the vanilla GTK+ version).
3497 This means that a "select-row" signal is emitted; this causes
3498 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3501 "cf_select_packet()" fetches, above, the data associated with the
3502 row that was selected; however, as "gtk_clist_append()", which
3503 called "real_insert_row()", hasn't yet returned, we haven't yet
3504 associated any data with that row, so we get back a null pointer.
3506 We can't assume that there's only one frame in the frame list,
3507 either, as we may be filtering the display.
3509 We therefore assume that, if "row" is 0, i.e. the first row
3510 is being selected, and "cf->first_displayed" equals
3511 "cf->last_displayed", i.e. there's only one frame being
3512 displayed, that frame is the frame we want.
3514 This means we have to set "cf->first_displayed" and
3515 "cf->last_displayed" before adding the row to the
3516 GtkCList; see the comment in "add_packet_to_packet_list()". */
3518 if (row == 0 && cf->first_displayed == cf->last_displayed)
3519 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3522 /* If fdata _still_ isn't set simply give up. */
3523 if (fdata == NULL) {
3527 /* Get the data in that frame. */
3528 if (!cf_read_frame (cf, fdata)) {
3532 /* Record that this frame is the current frame. */
3533 cf->current_frame = fdata;
3534 cf->current_row = row;
3536 /* Create the logical protocol tree. */
3537 if (cf->edt != NULL)
3538 epan_dissect_free(cf->edt);
3540 /* We don't need the columns here. */
3541 cf->edt = epan_dissect_new(TRUE, TRUE);
3543 tap_build_interesting(cf->edt);
3544 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3547 dfilter_macro_build_ftv_cache(cf->edt->tree);
3549 cf_callback_invoke(cf_cb_packet_selected, cf);
3552 /* Unselect the selected packet, if any. */
3554 cf_unselect_packet(capture_file *cf)
3556 /* Destroy the epan_dissect_t for the unselected packet. */
3557 if (cf->edt != NULL) {
3558 epan_dissect_free(cf->edt);
3562 /* No packet is selected. */
3563 cf->current_frame = NULL;
3564 cf->current_row = 0;
3566 cf_callback_invoke(cf_cb_packet_unselected, cf);
3568 /* No protocol tree means no selected field. */
3569 cf_unselect_field(cf);
3572 /* Unset the selected protocol tree field, if any. */
3574 cf_unselect_field(capture_file *cf)
3576 cf->finfo_selected = NULL;
3578 cf_callback_invoke(cf_cb_field_unselected, cf);
3582 * Mark a particular frame.
3585 cf_mark_frame(capture_file *cf, frame_data *frame)
3587 if (! frame->flags.marked) {
3588 frame->flags.marked = TRUE;
3589 if (cf->count > cf->marked_count)
3595 * Unmark a particular frame.
3598 cf_unmark_frame(capture_file *cf, frame_data *frame)
3600 if (frame->flags.marked) {
3601 frame->flags.marked = FALSE;
3602 if (cf->marked_count > 0)
3608 * Ignore a particular frame.
3611 cf_ignore_frame(capture_file *cf, frame_data *frame)
3613 if (! frame->flags.ignored) {
3614 frame->flags.ignored = TRUE;
3615 if (cf->count > cf->ignored_count)
3616 cf->ignored_count++;
3621 * Un-ignore a particular frame.
3624 cf_unignore_frame(capture_file *cf, frame_data *frame)
3626 if (frame->flags.ignored) {
3627 frame->flags.ignored = FALSE;
3628 if (cf->ignored_count > 0)
3629 cf->ignored_count--;
3637 } save_callback_args_t;
3640 * Save a capture to a file, in a particular format, saving either
3641 * all packets, all currently-displayed packets, or all marked packets.
3643 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3644 * up a message box for the failure.
3647 save_packet(capture_file *cf _U_, frame_data *fdata,
3648 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3651 save_callback_args_t *args = argsp;
3652 struct wtap_pkthdr hdr;
3655 /* init the wtap header for saving */
3656 hdr.ts.secs = fdata->abs_ts.secs;
3657 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3658 hdr.caplen = fdata->cap_len;
3659 hdr.len = fdata->pkt_len;
3660 hdr.pkt_encap = fdata->lnk_t;
3662 hdr.interface_id = fdata->interface_id; /* identifier of the interface. */
3664 hdr.opt_comment = fdata->opt_comment; /* NULL if not available */
3667 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
3669 /* and save the packet */
3670 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3672 /* Wiretap error. */
3675 case WTAP_ERR_UNSUPPORTED_ENCAP:
3677 * This is a problem with the particular frame we're writing;
3678 * note that, and give the frame number.
3680 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3681 "Frame %u has a network type that can't be saved in a \"%s\" file.",
3682 fdata->num, wtap_file_type_string(args->file_type));
3686 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3687 "An error occurred while writing to the file \"%s\": %s.",
3688 args->fname, wtap_strerror(err));
3693 write_failure_alert_box(args->fname, err);
3701 * Can this capture file be saved in any format except by copying the raw data?
3704 cf_can_save_as(capture_file *cf)
3708 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3709 /* To save a file with Wiretap, Wiretap has to handle that format,
3710 and its code to handle that format must be able to write a file
3711 with this file's encapsulation type. */
3712 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3713 /* OK, we can write it out in this type. */
3718 /* No, we couldn't save it in any format. */
3723 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3725 gchar *from_filename;
3729 save_callback_args_t callback_args;
3731 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3733 /* don't write over an existing file. */
3734 /* this should've been already checked by our caller, just to be sure... */
3735 if (file_exists(fname)) {
3736 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3737 "%sCapture file: \"%s\" already exists!%s\n\n"
3738 "Please choose a different filename.",
3739 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3743 packet_range_process_init(range);
3745 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3746 /* We're not filtering packets, and we're saving it in the format
3747 it's already in, so we can just move or copy the raw data. */
3749 if (cf->is_tempfile) {
3750 /* The file being saved is a temporary file from a live
3751 capture, so it doesn't need to stay around under that name;
3752 first, try renaming the capture buffer file to the new name. */
3754 if (ws_rename(cf->filename, fname) == 0) {
3755 /* That succeeded - there's no need to copy the source file. */
3756 from_filename = NULL;
3759 if (errno == EXDEV) {
3760 /* They're on different file systems, so we have to copy the
3763 from_filename = cf->filename;
3765 /* The rename failed, but not because they're on different
3766 file systems - put up an error message. (Or should we
3767 just punt and try to copy? The only reason why I'd
3768 expect the rename to fail and the copy to succeed would
3769 be if we didn't have permission to remove the file from
3770 the temporary directory, and that might be fixable - but
3771 is it worth requiring the user to go off and fix it?) */
3772 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3773 file_rename_error_message(errno), fname);
3779 from_filename = cf->filename;
3782 /* It's a permanent file, so we should copy it, and not remove the
3785 from_filename = cf->filename;
3789 /* Copy the file, if we haven't moved it. */
3790 if (!copy_file_binary_mode(from_filename, fname))
3794 /* Either we're filtering packets, or we're saving in a different
3795 format; we can't do that by copying or moving the capture file,
3796 we have to do it by writing the packets out in Wiretap. */
3798 wtapng_section_t *shb_hdr = NULL;
3799 wtapng_iface_descriptions_t *idb_inf = NULL;
3801 shb_hdr = wtap_file_get_shb_info(cf->wth);
3802 idb_inf = wtap_file_get_idb_info(cf->wth);
3804 pdh = wtap_dump_open_ng(fname, save_format, cf->lnk_t, cf->snap,
3805 compressed, shb_hdr, idb_inf, &err);
3807 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3811 /* Add address resolution */
3812 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
3814 /* XXX - we let the user save a subset of the packets.
3816 If we do that, should we make that file the current file? If so,
3817 it means we can no longer get at the other packets. What does
3820 /* Iterate through the list of packets, processing the packets we were
3823 XXX - we've already called "packet_range_process_init(range)", but
3824 "process_specified_packets()" will do it again. Fortunately,
3825 that's harmless in this case, as we haven't done anything to
3826 "range" since we initialized it. */
3827 callback_args.pdh = pdh;
3828 callback_args.fname = fname;
3829 callback_args.file_type = save_format;
3830 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3831 TRUE, save_packet, &callback_args)) {
3834 /* Completed successfully. */
3838 /* The user decided to abort the saving.
3839 XXX - remove the output file? */
3843 /* Error while saving. */
3844 wtap_dump_close(pdh, &err);
3848 if (!wtap_dump_close(pdh, &err)) {
3849 cf_close_failure_alert_box(fname, err);
3854 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3856 if (packet_range_process_all(range)) {
3857 /* We saved the entire capture, not just some packets from it.
3858 Open and read the file we saved it to.
3860 XXX - this is somewhat of a waste; we already have the
3861 packets, all this gets us is updated file type information
3862 (which we could just stuff into "cf"), and having the new
3863 file be the one we have opened and from which we're reading
3864 the data, and it means we have to spend time opening and
3865 reading the file, which could be a significant amount of
3866 time if the file is large. */
3867 cf->user_saved = TRUE;
3869 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3870 /* XXX - report errors if this fails?
3871 What should we return if it fails or is aborted? */
3873 switch (cf_read(cf, TRUE)) {
3877 /* Just because we got an error, that doesn't mean we were unable
3878 to read any of the file; we handle what we could get from the
3882 case CF_READ_ABORTED:
3883 /* The user bailed out of re-reading the capture file; the
3884 capture file has been closed - just return (without
3885 changing any menu settings; "cf_close()" set them
3886 correctly for the "no capture file open" state). */
3889 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3895 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3900 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3901 gboolean for_writing, int file_type)
3904 /* Wiretap error. */
3907 case WTAP_ERR_NOT_REGULAR_FILE:
3908 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3909 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3913 case WTAP_ERR_RANDOM_OPEN_PIPE:
3914 /* Seen only when opening a capture file for reading. */
3915 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3916 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3920 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3921 /* Seen only when opening a capture file for reading. */
3922 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3923 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3927 case WTAP_ERR_UNSUPPORTED:
3928 /* Seen only when opening a capture file for reading. */
3929 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3930 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3932 filename, err_info);
3936 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3937 /* Seen only when opening a capture file for writing. */
3938 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3939 "The file \"%s\" is a pipe, and %s capture files can't be "
3940 "written to a pipe.",
3941 filename, wtap_file_type_string(file_type));
3944 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3945 /* Seen only when opening a capture file for writing. */
3946 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3947 "Wireshark doesn't support writing capture files in that format.");
3950 case WTAP_ERR_UNSUPPORTED_ENCAP:
3952 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3953 "Wireshark can't save this capture in that format.");
3955 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3956 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3958 filename, err_info);
3963 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3965 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3966 "Wireshark can't save this capture in that format.");
3968 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3969 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3974 case WTAP_ERR_BAD_FILE:
3975 /* Seen only when opening a capture file for reading. */
3976 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3977 "The file \"%s\" appears to be damaged or corrupt.\n"
3979 filename, err_info);
3983 case WTAP_ERR_CANT_OPEN:
3985 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3986 "The file \"%s\" could not be created for some unknown reason.",
3989 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3990 "The file \"%s\" could not be opened for some unknown reason.",
3995 case WTAP_ERR_SHORT_READ:
3996 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3997 "The file \"%s\" appears to have been cut short"
3998 " in the middle of a packet or other data.",
4002 case WTAP_ERR_SHORT_WRITE:
4003 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4004 "A full header couldn't be written to the file \"%s\".",
4008 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4009 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4010 "This file type cannot be written as a compressed file.");
4013 case WTAP_ERR_DECOMPRESS:
4014 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4015 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
4016 "(%s)", filename, err_info);
4021 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4022 "The file \"%s\" could not be %s: %s.",
4024 for_writing ? "created" : "opened",
4025 wtap_strerror(err));
4030 open_failure_alert_box(filename, err, for_writing);
4035 file_rename_error_message(int err)
4038 static char errmsg_errno[1024+1];
4043 errmsg = "The path to the file \"%s\" doesn't exist.";
4047 errmsg = "You don't have permission to move the capture file to \"%s\".";
4051 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4052 "The file \"%%s\" could not be moved: %s.",
4053 wtap_strerror(err));
4054 errmsg = errmsg_errno;
4060 /* Check for write errors - if the file is being written to an NFS server,
4061 a write error may not show up until the file is closed, as NFS clients
4062 might not send writes to the server until the "write()" call finishes,
4063 so that the write may fail on the server but the "write()" may succeed. */
4065 cf_close_failure_alert_box(const char *filename, int err)
4068 /* Wiretap error. */
4071 case WTAP_ERR_CANT_CLOSE:
4072 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4073 "The file \"%s\" couldn't be closed for some unknown reason.",
4077 case WTAP_ERR_SHORT_WRITE:
4078 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4079 "Not all the packets could be written to the file \"%s\".",
4084 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4085 "An error occurred while closing the file \"%s\": %s.",
4086 filename, wtap_strerror(err));
4091 We assume that a close error from the OS is really a write error. */
4092 write_failure_alert_box(filename, err);
4096 /* Reload the current capture file. */
4098 cf_reload(capture_file *cf) {
4100 gboolean is_tempfile;
4103 /* If the file could be opened, "cf_open()" calls "cf_close()"
4104 to get rid of state for the old capture file before filling in state
4105 for the new capture file. "cf_close()" will remove the file if
4106 it's a temporary file; we don't want that to happen (for one thing,
4107 it'd prevent subsequent reopens from working). Remember whether it's
4108 a temporary file, mark it as not being a temporary file, and then
4109 reopen it as the type of file it was.
4111 Also, "cf_close()" will free "cf->filename", so we must make
4112 a copy of it first. */
4113 filename = g_strdup(cf->filename);
4114 is_tempfile = cf->is_tempfile;
4115 cf->is_tempfile = FALSE;
4116 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4117 switch (cf_read(cf, FALSE)) {
4121 /* Just because we got an error, that doesn't mean we were unable
4122 to read any of the file; we handle what we could get from the
4126 case CF_READ_ABORTED:
4127 /* The user bailed out of re-reading the capture file; the
4128 capture file has been closed - just free the capture file name
4129 string and return (without changing the last containing
4135 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4136 Instead, the file was left open, so we should restore "cf->is_tempfile"
4139 XXX - change the menu? Presumably "cf_open()" will do that;
4140 make sure it does! */
4141 cf->is_tempfile = is_tempfile;
4143 /* "cf_open()" made a copy of the file name we handed it, so
4144 we should free up our copy. */
4154 * indent-tabs-mode: nil
4157 * ex: set shiftwidth=2 tabstop=8 expandtab:
4158 * :indentSize=2:tabSize=8:noTabs=true: