6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
61 #include "alert_box.h"
62 #include "simple_dialog.h"
63 #include "main_statusbar.h"
64 #include "progress_dlg.h"
66 #include <epan/prefs.h>
67 #include <epan/dfilter/dfilter.h>
68 #include <epan/epan_dissect.h>
70 #include <epan/dissectors/packet-data.h>
71 #include <epan/dissectors/packet-ber.h>
72 #include <epan/timestamp.h>
73 #include <epan/dfilter/dfilter-macro.h>
74 #include <wsutil/file_util.h>
75 #include <epan/strutil.h>
76 #include <epan/addr_resolv.h>
79 gboolean auto_scroll_live;
82 static guint32 cum_bytes;
83 static nstime_t first_ts;
84 static nstime_t prev_dis_ts;
85 static nstime_t prev_cap_ts;
87 static gulong computed_elapsed;
89 static void cf_reset_state(capture_file *cf);
91 static int read_packet(capture_file *cf, dfilter_t *dfcode,
92 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
94 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
95 gboolean refilter, gboolean redissect);
102 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
104 static void match_subtree_text(proto_node *node, gpointer data);
105 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
107 static match_result match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
109 static match_result match_ascii(capture_file *cf, frame_data *fdata,
111 static match_result match_unicode(capture_file *cf, frame_data *fdata,
113 static match_result match_binary(capture_file *cf, frame_data *fdata,
115 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
117 static match_result match_marked(capture_file *cf, frame_data *fdata,
119 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
121 static gboolean find_packet(capture_file *cf,
122 match_result (*match_function)(capture_file *, frame_data *, void *),
123 void *criterion, search_direction dir);
125 static void cf_open_failure_alert_box(const char *filename, int err,
126 gchar *err_info, gboolean for_writing,
128 static const char *file_rename_error_message(int err);
129 static void cf_write_failure_alert_box(const char *filename, int err);
130 static void cf_close_failure_alert_box(const char *filename, int err);
131 static void ref_time_packets(capture_file *cf);
132 /* Update the progress bar this many times when reading a file. */
133 #define N_PROGBAR_UPDATES 100
134 /* We read around 200k/100ms don't update the progress bar more often than that */
135 #define MIN_QUANTUM 200000
136 #define MIN_NUMBER_OF_PACKET 1500
138 /* Number of "frame_data" structures per memory chunk.
139 XXX - is this the right number? */
140 #define FRAME_DATA_CHUNK_SIZE 1024
144 * We could probably use g_signal_...() instead of the callbacks below but that
145 * would require linking our CLI programs to libgobject and creating an object
146 * instance for the signals.
149 cf_callback_t cb_fct;
151 } cf_callback_data_t;
153 static GList *cf_callbacks = NULL;
156 cf_callback_invoke(int event, gpointer data)
158 cf_callback_data_t *cb;
159 GList *cb_item = cf_callbacks;
161 /* there should be at least one interested */
162 g_assert(cb_item != NULL);
164 while(cb_item != NULL) {
166 cb->cb_fct(event, data, cb->user_data);
167 cb_item = g_list_next(cb_item);
173 cf_callback_add(cf_callback_t func, gpointer user_data)
175 cf_callback_data_t *cb;
177 cb = g_malloc(sizeof(cf_callback_data_t));
179 cb->user_data = user_data;
181 cf_callbacks = g_list_append(cf_callbacks, cb);
185 cf_callback_remove(cf_callback_t func)
187 cf_callback_data_t *cb;
188 GList *cb_item = cf_callbacks;
190 while(cb_item != NULL) {
192 if(cb->cb_fct == func) {
193 cf_callbacks = g_list_remove(cf_callbacks, cb);
197 cb_item = g_list_next(cb_item);
200 g_assert_not_reached();
204 cf_timestamp_auto_precision(capture_file *cf)
207 int prec = timestamp_get_precision();
210 /* don't try to get the file's precision if none is opened */
211 if(cf->state == FILE_CLOSED) {
215 /* if we are in auto mode, set precision of current file */
216 if(prec == TS_PREC_AUTO ||
217 prec == TS_PREC_AUTO_SEC ||
218 prec == TS_PREC_AUTO_DSEC ||
219 prec == TS_PREC_AUTO_CSEC ||
220 prec == TS_PREC_AUTO_MSEC ||
221 prec == TS_PREC_AUTO_USEC ||
222 prec == TS_PREC_AUTO_NSEC)
224 switch(wtap_file_tsprecision(cf->wth)) {
225 case(WTAP_FILE_TSPREC_SEC):
226 timestamp_set_precision(TS_PREC_AUTO_SEC);
228 case(WTAP_FILE_TSPREC_DSEC):
229 timestamp_set_precision(TS_PREC_AUTO_DSEC);
231 case(WTAP_FILE_TSPREC_CSEC):
232 timestamp_set_precision(TS_PREC_AUTO_CSEC);
234 case(WTAP_FILE_TSPREC_MSEC):
235 timestamp_set_precision(TS_PREC_AUTO_MSEC);
237 case(WTAP_FILE_TSPREC_USEC):
238 timestamp_set_precision(TS_PREC_AUTO_USEC);
240 case(WTAP_FILE_TSPREC_NSEC):
241 timestamp_set_precision(TS_PREC_AUTO_NSEC);
244 g_assert_not_reached();
247 /* Set the column widths of those columns that show the time in
248 "command-line-specified" format. */
249 for (i = 0; i < cf->cinfo.num_cols; i++) {
250 if (col_has_time_fmt(&cf->cinfo, i)) {
251 new_packet_list_resize_column(i);
257 cf_get_computed_elapsed(void)
259 return computed_elapsed;
262 static void reset_elapsed(void)
264 computed_elapsed = 0;
267 static void compute_elapsed(GTimeVal *start_time)
272 g_get_current_time(&time_now);
274 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
275 time_now.tv_usec - start_time->tv_usec;
277 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
281 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
286 wth = wtap_open_offline(fname, err, &err_info, TRUE);
290 /* The open succeeded. Close whatever capture file we had open,
291 and fill in the information for this file. */
294 /* Cleanup all data structures used for dissection. */
295 cleanup_dissection();
296 /* Initialize all data structures used for dissection. */
299 /* We're about to start reading the file. */
300 cf->state = FILE_READ_IN_PROGRESS;
305 /* Set the file name because we need it to set the follow stream filter.
306 XXX - is that still true? We need it for other reasons, though,
308 cf->filename = g_strdup(fname);
310 /* Indicate whether it's a permanent or temporary file. */
311 cf->is_tempfile = is_tempfile;
313 /* If it's a temporary capture buffer file, mark it as not saved. */
314 cf->user_saved = !is_tempfile;
318 cf->cd_t = wtap_file_type(cf->wth);
320 cf->displayed_count = 0;
321 cf->marked_count = 0;
322 cf->ignored_count = 0;
323 cf->ref_time_count = 0;
324 cf->drops_known = FALSE;
326 cf->snap = wtap_snapshot_length(cf->wth);
328 /* Snapshot length not known. */
329 cf->has_snap = FALSE;
330 cf->snap = WTAP_MAX_PACKET_SIZE;
334 nstime_set_zero(&cf->elapsed_time);
335 nstime_set_unset(&first_ts);
336 nstime_set_unset(&prev_dis_ts);
337 nstime_set_unset(&prev_cap_ts);
340 #if GLIB_CHECK_VERSION(2,10,0)
342 /* memory chunks have been deprecated in favor of the slice allocator,
343 * which has been added in 2.10
345 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
347 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
349 g_assert(cf->plist_chunk);
352 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
353 cf_timestamp_auto_precision(cf);
355 new_packet_list_queue_draw();
356 fileset_file_opened(fname);
358 if(cf->cd_t == WTAP_FILE_BER) {
359 /* tell the BER dissector the file name */
360 ber_set_filename(cf->filename);
363 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
364 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
369 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
375 * Reset the state for the currently closed file, but don't do the
376 * UI callbacks; this is for use in "cf_open()", where we don't
377 * want the UI to go from "file open" to "file closed" back to
378 * "file open", we want it to go from "old file open" to "new file
379 * open and being read".
382 cf_reset_state(capture_file *cf)
384 /* Die if we're in the middle of reading a file. */
385 g_assert(cf->state != FILE_READ_IN_PROGRESS);
391 /* We have no file open... */
392 if (cf->filename != NULL) {
393 /* If it's a temporary file, remove it. */
395 ws_unlink(cf->filename);
396 g_free(cf->filename);
399 /* ...which means we have nothing to save. */
400 cf->user_saved = FALSE;
402 #if GLIB_CHECK_VERSION(2,10,0)
403 if (cf->plist_start != NULL)
404 g_slice_free_chain(frame_data, cf->plist_start, next);
406 /* memory chunks have been deprecated in favor of the slice allocator,
407 * which has been added in 2.10
409 if (cf->plist_chunk != NULL) {
410 g_mem_chunk_destroy(cf->plist_chunk);
411 cf->plist_chunk = NULL;
414 dfilter_free(cf->rfcode);
416 cf->plist_start = NULL;
417 cf->plist_end = NULL;
418 cf_unselect_packet(cf); /* nothing to select */
419 cf->first_displayed = NULL;
420 cf->last_displayed = NULL;
422 /* No frame selected, no field in that frame selected. */
423 cf->current_frame = NULL;
425 cf->finfo_selected = NULL;
427 /* Clear the packet list. */
428 new_packet_list_freeze();
429 new_packet_list_clear();
430 new_packet_list_thaw();
434 nstime_set_zero(&cf->elapsed_time);
436 reset_tap_listeners();
438 /* We have no file open. */
439 cf->state = FILE_CLOSED;
441 fileset_file_closed();
444 /* Reset everything to a pristine state */
446 cf_close(capture_file *cf)
448 /* do GUI things even if file is already closed,
449 * e.g. to cleanup things if a capture couldn't be started */
450 cf_callback_invoke(cf_cb_file_closing, cf);
452 /* close things, if not already closed before */
453 if(cf->state != FILE_CLOSED) {
454 color_filters_cleanup();
456 cleanup_dissection();
459 cf_callback_invoke(cf_cb_file_closed, cf);
462 /* an out of memory exception occured, wait for a user button press to exit */
463 static void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
469 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
473 progbar_val = (gfloat) file_pos / (gfloat) size;
474 if (progbar_val > 1.0) {
476 /* The file probably grew while we were reading it.
477 * Update file size, and try again.
479 size = wtap_file_size(cf->wth, NULL);
481 /* Another possibility is that we're reading a compressed file and we've
482 * read more (uncompressed) data from the file than exists in the
483 * (compressed) file. So check how much data we've actually read.
485 * This is inside this "if val > 1.0" check to avoid the lseek() when
486 * reading uncompressed files. Testing has (thus far) shown no progress
487 * bar weirdness resulting from switching from the data offset (when
488 * reading the first part of the file) to the real file position.
490 file_pos = wtap_read_so_far(cf->wth, NULL);
493 progbar_val = (gfloat) file_pos / (gfloat) size;
495 /* If it's still > 1, either "wtap_file_size()" failed (in which
496 * case there's not much we can do about it), or the file
497 * *shrank* (in which case there's not much we can do about
498 * it); just clip the progress value at 1.0.
500 if (progbar_val > 1.0f)
504 g_snprintf(status_str, status_size,
505 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
506 file_pos / 1024, size / 1024);
512 cf_read(capture_file *cf, gboolean from_save)
516 const gchar *name_ptr;
518 char errmsg_errno[1024+1];
520 progdlg_t *volatile progbar = NULL;
522 volatile gint64 size;
523 volatile float progbar_val;
525 gchar status_str[100];
526 volatile gint64 progbar_nextstep;
527 volatile gint64 progbar_quantum;
529 gboolean filtering_tap_listeners;
531 volatile int count = 0;
533 volatile int displayed_once = 0;
537 /* Compile the current display filter.
538 * We assume this will not fail since cf->dfilter is only set in
539 * cf_filter IFF the filter was valid.
541 compiled = dfilter_compile(cf->dfilter, &dfcode);
542 g_assert(!cf->dfilter || (compiled && dfcode));
544 /* Do we have any tap listeners with filters? */
545 filtering_tap_listeners = have_filtering_tap_listeners();
547 /* Get the union of the flags for all tap listeners. */
548 tap_flags = union_of_tap_listener_flags();
550 reset_tap_listeners();
552 name_ptr = get_basename(cf->filename);
554 if (from_save == FALSE)
555 cf_callback_invoke(cf_cb_file_read_started, cf);
557 cf_callback_invoke(cf_cb_file_save_started, (gpointer)name_ptr);
559 /* Find the size of the file. */
560 size = wtap_file_size(cf->wth, NULL);
562 /* Update the progress bar when it gets to this value. */
563 progbar_nextstep = 0;
564 /* When we reach the value that triggers a progress bar update,
565 bump that value by this amount. */
567 progbar_quantum = size/N_PROGBAR_UPDATES;
568 if (progbar_quantum < MIN_QUANTUM)
569 progbar_quantum = MIN_QUANTUM;
572 /* Progress so far. */
575 new_packet_list_freeze();
578 g_get_current_time(&start_time);
580 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
583 /* Create the progress bar if necessary.
584 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
586 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
587 progbar_val = calc_progbar_val(cf, size, data_offset, status_str, sizeof(status_str));
588 if (from_save == FALSE)
589 progbar = delayed_create_progress_dlg("Loading", name_ptr,
590 TRUE, &stop_flag, &start_time, progbar_val);
592 progbar = delayed_create_progress_dlg("Saving", name_ptr,
593 TRUE, &stop_flag, &start_time, progbar_val);
596 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
597 when we update it, we have to run the GTK+ main loop to get it
598 to repaint what's pending, and doing so may involve an "ioctl()"
599 to see if there's any pending input from an X server, and doing
600 that for every packet can be costly, especially on a big file. */
601 if (data_offset >= progbar_nextstep) {
602 if (progbar != NULL) {
603 progbar_val = calc_progbar_val(cf, size, data_offset, status_str, sizeof(status_str));
604 /* update the packet lists content on the first run or frequently on very large files */
605 /* (on smaller files the display update takes longer than reading the file) */
607 if (progbar_quantum > 500000 || displayed_once == 0) {
608 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
610 new_packet_list_thaw();
611 if (auto_scroll_live)
612 new_packet_list_moveto_end();
613 new_packet_list_freeze();
616 #endif /* HAVE_LIBPCAP */
617 update_progress_dlg(progbar, progbar_val, status_str);
619 progbar_nextstep += progbar_quantum;
624 /* Well, the user decided to abort the read. He/She will be warned and
625 it might be enough for him/her to work with the already loaded
627 This is especially true for very large capture files, where you don't
628 want to wait loading the whole file (which may last minutes or even
629 hours even on fast machines) just to see that it was the wrong file. */
633 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
635 CATCH(OutOfMemoryError) {
638 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
639 "%sOut Of Memory!%s\n"
641 "Sorry, but Wireshark has to terminate now!\n"
643 "Some infos / workarounds can be found at:\n"
644 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
645 simple_dialog_primary_start(), simple_dialog_primary_end());
646 /* we have to terminate, as we cannot recover from the memory error */
647 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
649 main_window_update();
650 /* XXX - how to avoid a busy wait? */
658 /* Cleanup and release all dfilter resources */
660 dfilter_free(dfcode);
663 /* We're done reading the file; destroy the progress bar if it was created. */
665 destroy_progress_dlg(progbar);
667 /* We're done reading sequentially through the file. */
668 cf->state = FILE_READ_DONE;
670 /* Close the sequential I/O side, to free up memory it requires. */
671 wtap_sequential_close(cf->wth);
673 /* Allow the protocol dissectors to free up memory that they
674 * don't need after the sequential run-through of the packets. */
675 postseq_cleanup_all_protocols();
677 /* compute the time it took to load the file */
678 compute_elapsed(&start_time);
680 /* Set the file encapsulation type now; we don't know what it is until
681 we've looked at all the packets, as we don't know until then whether
682 there's more than one type (and thus whether it's
683 WTAP_ENCAP_PER_PACKET). */
684 cf->lnk_t = wtap_file_encap(cf->wth);
686 cf->current_frame = cf->first_displayed;
689 new_packet_list_thaw();
690 if (from_save == FALSE)
691 cf_callback_invoke(cf_cb_file_read_finished, cf);
693 cf_callback_invoke(cf_cb_file_save_finished, cf);
695 /* If we have any displayed packets to select, select the first of those
696 packets by making the first row the selected row. */
697 if (cf->first_displayed != NULL){
698 new_packet_list_select_first_row();
702 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
703 "%sFile loading was cancelled!%s\n"
705 "The remaining packets in the file were discarded.\n"
707 "As a lot of packets from the original file will be missing,\n"
708 "remember to be careful when saving the current content to a file.\n",
709 simple_dialog_primary_start(), simple_dialog_primary_end());
710 return CF_READ_ERROR;
714 /* Put up a message box noting that the read failed somewhere along
715 the line. Don't throw out the stuff we managed to read, though,
719 case WTAP_ERR_UNSUPPORTED_ENCAP:
720 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
721 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
724 errmsg = errmsg_errno;
727 case WTAP_ERR_CANT_READ:
728 errmsg = "An attempt to read from the capture file failed for"
729 " some unknown reason.";
732 case WTAP_ERR_SHORT_READ:
733 errmsg = "The capture file appears to have been cut short"
734 " in the middle of a packet.";
737 case WTAP_ERR_BAD_RECORD:
738 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
739 "The capture file appears to be damaged or corrupt.\n(%s)",
742 errmsg = errmsg_errno;
746 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
747 "An error occurred while reading the"
748 " capture file: %s.", wtap_strerror(err));
749 errmsg = errmsg_errno;
752 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
753 return CF_READ_ERROR;
760 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
762 cf_status_t cf_status;
764 cf_status = cf_open(cf, fname, is_tempfile, err);
769 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
771 gint64 data_offset = 0;
773 volatile int newly_displayed_packets = 0;
775 gboolean filtering_tap_listeners;
779 /* Compile the current display filter.
780 * We assume this will not fail since cf->dfilter is only set in
781 * cf_filter IFF the filter was valid.
783 compiled = dfilter_compile(cf->dfilter, &dfcode);
784 g_assert(!cf->dfilter || (compiled && dfcode));
786 /* Do we have any tap listeners with filters? */
787 filtering_tap_listeners = have_filtering_tap_listeners();
789 /* Get the union of the flags for all tap listeners. */
790 tap_flags = union_of_tap_listener_flags();
794 new_packet_list_check_end();
795 /* Don't freeze/thaw the list when doing live capture */
796 /*new_packet_list_freeze();*/
798 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
800 while (to_read != 0) {
801 wtap_cleareof(cf->wth);
802 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
805 if (cf->state == FILE_READ_ABORTED) {
806 /* Well, the user decided to exit Wireshark. Break out of the
807 loop, and let the code below (which is called even if there
808 aren't any packets left to read) exit. */
812 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
813 data_offset) != -1) {
814 newly_displayed_packets++;
817 CATCH(OutOfMemoryError) {
820 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
821 "%sOut Of Memory!%s\n"
823 "Sorry, but Wireshark has to terminate now!\n"
825 "The capture file is not lost, it can be found at:\n"
828 "Some infos / workarounds can be found at:\n"
829 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
830 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
831 /* we have to terminate, as we cannot recover from the memory error */
832 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
834 main_window_update();
835 /* XXX - how to avoid a busy wait? */
838 /* Don't freeze/thaw the list when doing live capture */
839 /*new_packet_list_thaw();*/
840 return CF_READ_ABORTED;
846 /* Cleanup and release all dfilter resources */
848 dfilter_free(dfcode);
851 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
852 cf->count, cf->state, *err);*/
854 /* Don't freeze/thaw the list when doing live capture */
855 /*new_packet_list_thaw();*/
856 /* With the new packet list the first packet
857 * isn't automatically selected.
859 if(!cf->current_frame)
860 new_packet_list_select_first_row();
862 /* moving to the end of the packet list - if the user requested so and
863 we have some new packets. */
864 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
865 new_packet_list_moveto_end();
867 if (cf->state == FILE_READ_ABORTED) {
868 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
869 so that our caller can kill off the capture child process;
870 this will cause an EOF on the pipe from the child, so
871 "cf_finish_tail()" will be called, and it will clean up
873 return CF_READ_ABORTED;
874 } else if (*err != 0) {
875 /* We got an error reading the capture file.
876 XXX - pop up a dialog box instead? */
877 g_warning("Error \"%s\" while reading: \"%s\"\n",
878 wtap_strerror(*err), cf->filename);
880 return CF_READ_ERROR;
886 cf_fake_continue_tail(capture_file *cf) {
887 cf->state = FILE_READ_DONE;
891 cf_finish_tail(capture_file *cf, int *err)
896 gboolean filtering_tap_listeners;
900 /* Compile the current display filter.
901 * We assume this will not fail since cf->dfilter is only set in
902 * cf_filter IFF the filter was valid.
904 compiled = dfilter_compile(cf->dfilter, &dfcode);
905 g_assert(!cf->dfilter || (compiled && dfcode));
907 /* Do we have any tap listeners with filters? */
908 filtering_tap_listeners = have_filtering_tap_listeners();
910 /* Get the union of the flags for all tap listeners. */
911 tap_flags = union_of_tap_listener_flags();
913 if(cf->wth == NULL) {
915 return CF_READ_ERROR;
918 new_packet_list_check_end();
919 /* Don't freeze/thaw the list when doing live capture */
920 /*new_packet_list_freeze();*/
922 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
923 if (cf->state == FILE_READ_ABORTED) {
924 /* Well, the user decided to abort the read. Break out of the
925 loop, and let the code below (which is called even if there
926 aren't any packets left to read) exit. */
929 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
932 /* Cleanup and release all dfilter resources */
934 dfilter_free(dfcode);
937 /* Don't freeze/thaw the list when doing live capture */
938 /*new_packet_list_thaw();*/
940 if (cf->state == FILE_READ_ABORTED) {
941 /* Well, the user decided to abort the read. We're only called
942 when the child capture process closes the pipe to us (meaning
943 it's probably exited), so we can just close the capture
944 file; we return CF_READ_ABORTED so our caller can do whatever
945 is appropriate when that happens. */
947 return CF_READ_ABORTED;
950 if (auto_scroll_live && cf->plist_end != NULL)
951 new_packet_list_moveto_end();
953 /* We're done reading sequentially through the file. */
954 cf->state = FILE_READ_DONE;
956 /* We're done reading sequentially through the file; close the
957 sequential I/O side, to free up memory it requires. */
958 wtap_sequential_close(cf->wth);
960 /* Allow the protocol dissectors to free up memory that they
961 * don't need after the sequential run-through of the packets. */
962 postseq_cleanup_all_protocols();
964 /* Set the file encapsulation type now; we don't know what it is until
965 we've looked at all the packets, as we don't know until then whether
966 there's more than one type (and thus whether it's
967 WTAP_ENCAP_PER_PACKET). */
968 cf->lnk_t = wtap_file_encap(cf->wth);
971 /* We got an error reading the capture file.
972 XXX - pop up a dialog box? */
973 return CF_READ_ERROR;
978 #endif /* HAVE_LIBPCAP */
981 cf_get_display_name(capture_file *cf)
983 const gchar *displayname;
985 /* Return a name to use in displays */
986 if (!cf->is_tempfile) {
987 /* Get the last component of the file name, and use that. */
989 displayname = get_basename(cf->filename);
991 displayname="(No file)";
994 /* The file we read is a temporary file from a live capture;
995 we don't mention its name. */
997 displayname = cf->source;
999 displayname = "(Untitled)";
1005 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1011 cf->source = g_strdup(source);
1013 cf->source = g_strdup("");
1017 const gchar *cf_get_tempfile_source(capture_file *cf) {
1025 /* XXX - use a macro instead? */
1027 cf_get_packet_count(capture_file *cf)
1032 /* XXX - use a macro instead? */
1034 cf_set_packet_count(capture_file *cf, int packet_count)
1036 cf->count = packet_count;
1039 /* XXX - use a macro instead? */
1041 cf_is_tempfile(capture_file *cf)
1043 return cf->is_tempfile;
1046 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1048 cf->is_tempfile = is_tempfile;
1052 /* XXX - use a macro instead? */
1053 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1055 cf->drops_known = drops_known;
1058 /* XXX - use a macro instead? */
1059 void cf_set_drops(capture_file *cf, guint32 drops)
1064 /* XXX - use a macro instead? */
1065 gboolean cf_get_drops_known(capture_file *cf)
1067 return cf->drops_known;
1070 /* XXX - use a macro instead? */
1071 guint32 cf_get_drops(capture_file *cf)
1076 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1078 cf->rfcode = rfcode;
1082 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1083 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1085 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1087 gboolean add_to_packet_list)
1089 gboolean create_proto_tree = FALSE;
1094 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1096 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1097 &first_ts, &prev_dis_ts, &prev_cap_ts);
1100 + we have a display filter and are re-applying it;
1101 + we have tap listeners with filters;
1102 + we have tap listeners that require a protocol tree;
1104 allocate a protocol tree root node, so that we'll construct
1105 a protocol tree against which a filter expression can be
1107 if ((dfcode != NULL && refilter) ||
1108 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1109 create_proto_tree = TRUE;
1111 /* Dissect the frame. */
1112 epan_dissect_init(&edt, create_proto_tree, FALSE);
1114 if (dfcode != NULL && refilter) {
1115 epan_dissect_prime_dfilter(&edt, dfcode);
1118 tap_queue_init(&edt);
1119 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1120 tap_push_tapped_queue(&edt);
1122 /* If we have a display filter, apply it if we're refiltering, otherwise
1123 leave the "passed_dfilter" flag alone.
1125 If we don't have a display filter, set "passed_dfilter" to 1. */
1126 if (dfcode != NULL) {
1128 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1131 fdata->flags.passed_dfilter = 1;
1133 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1134 cf->displayed_count++;
1136 if (add_to_packet_list) {
1137 /* We fill the needed columns from new_packet_list */
1138 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1141 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1143 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1145 /* If we haven't yet seen the first frame, this is it.
1147 XXX - we must do this before we add the row to the display,
1148 as, if the display's GtkCList's selection mode is
1149 GTK_SELECTION_BROWSE, when the first entry is added to it,
1150 "cf_select_packet()" will be called, and it will fetch the row
1151 data for the 0th row, and will get a null pointer rather than
1152 "fdata", as "gtk_clist_append()" won't yet have returned and
1153 thus "gtk_clist_set_row_data()" won't yet have been called.
1155 We thus need to leave behind bread crumbs so that
1156 "cf_select_packet()" can find this frame. See the comment
1157 in "cf_select_packet()". */
1158 if (cf->first_displayed == NULL)
1159 cf->first_displayed = fdata;
1161 /* This is the last frame we've seen so far. */
1162 cf->last_displayed = fdata;
1165 epan_dissect_cleanup(&edt);
1170 * Initialize the col_text and col_text_len arrays.
1173 init_col_text(frame_data *fdata, gint num_cols)
1175 fdata->col_text_len = se_alloc0(sizeof(*fdata->col_text_len) * num_cols);
1176 fdata->col_text = se_alloc0(sizeof(*fdata->col_text) * num_cols);
1179 /* read in a new packet */
1180 /* returns the row of the new packet in the packet list or -1 if not displayed */
1182 read_packet(capture_file *cf, dfilter_t *dfcode,
1183 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1185 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1186 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1187 const guchar *buf = wtap_buf_ptr(cf->wth);
1194 /* Allocate the next list entry, and add it to the list.
1195 * memory chunks have been deprecated in favor of the slice allocator,
1196 * which has been added in 2.10
1198 #if GLIB_CHECK_VERSION(2,10,0)
1199 fdata = g_slice_new(frame_data);
1201 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1204 frame_data_init(fdata, cf->count, phdr, offset, cum_bytes);
1205 init_col_text(fdata, cf->cinfo.num_cols);
1210 epan_dissect_init(&edt, TRUE, FALSE);
1211 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1212 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1213 passed = dfilter_apply_edt(cf->rfcode, &edt);
1214 epan_dissect_cleanup(&edt);
1218 cap_file_add_fdata(cf, fdata);
1220 cf->f_datalen = offset + fdata->cap_len;
1222 if (!cf->redissecting) {
1223 row = add_packet_to_packet_list(fdata, cf, dfcode,
1224 filtering_tap_listeners, tap_flags,
1225 pseudo_header, buf, TRUE, TRUE);
1228 /* We didn't pass read filter so roll back count */
1231 /* XXX - if we didn't have read filters, or if we could avoid
1232 allocating the "frame_data" structure until we knew whether
1233 the frame passed the read filter, we could use a G_ALLOC_ONLY
1236 ...but, at least in one test I did, where I just made the chunk
1237 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1238 seem to save a noticeable amount of time or space. */
1239 #if GLIB_CHECK_VERSION(2,10,0)
1240 /* memory chunks have been deprecated in favor of the slice allocator,
1241 * which has been added in 2.10
1243 g_slice_free(frame_data,fdata);
1245 g_mem_chunk_free(cf->plist_chunk, fdata);
1253 cf_merge_files(char **out_filenamep, int in_file_count,
1254 char *const *in_filenames, int file_type, gboolean do_append)
1256 merge_in_file_t *in_files;
1262 int open_err, read_err, write_err, close_err;
1266 char errmsg_errno[1024+1];
1268 gboolean got_read_error = FALSE, got_write_error = FALSE;
1270 progdlg_t *progbar = NULL;
1272 gint64 f_len, file_pos;
1274 GTimeVal start_time;
1275 gchar status_str[100];
1276 gint64 progbar_nextstep;
1277 gint64 progbar_quantum;
1279 /* open the input files */
1280 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1281 &open_err, &err_info, &err_fileno)) {
1283 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1288 if (*out_filenamep != NULL) {
1289 out_filename = *out_filenamep;
1290 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1294 out_fd = create_tempfile(&tmpname, "wireshark");
1297 out_filename = g_strdup(tmpname);
1298 *out_filenamep = out_filename;
1302 merge_close_in_files(in_file_count, in_files);
1304 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1308 pdh = wtap_dump_fdopen(out_fd, file_type,
1309 merge_select_frame_type(in_file_count, in_files),
1310 merge_max_snapshot_length(in_file_count, in_files),
1311 FALSE /* compressed */, &open_err);
1314 merge_close_in_files(in_file_count, in_files);
1316 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1321 /* Get the sum of the sizes of all the files. */
1323 for (i = 0; i < in_file_count; i++)
1324 f_len += in_files[i].size;
1326 /* Update the progress bar when it gets to this value. */
1327 progbar_nextstep = 0;
1328 /* When we reach the value that triggers a progress bar update,
1329 bump that value by this amount. */
1330 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1331 /* Progress so far. */
1335 g_get_current_time(&start_time);
1337 /* do the merge (or append) */
1340 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1343 wth = merge_read_packet(in_file_count, in_files, &read_err,
1347 got_read_error = TRUE;
1351 /* Get the sum of the data offsets in all of the files. */
1353 for (i = 0; i < in_file_count; i++)
1354 data_offset += in_files[i].data_offset;
1356 /* Create the progress bar if necessary.
1357 We check on every iteration of the loop, so that it takes no
1358 longer than the standard time to create it (otherwise, for a
1359 large file, we might take considerably longer than that standard
1360 time in order to get to the next progress bar step). */
1361 if (progbar == NULL) {
1362 progbar = delayed_create_progress_dlg("Merging", "files",
1363 FALSE, &stop_flag, &start_time, progbar_val);
1366 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1367 when we update it, we have to run the GTK+ main loop to get it
1368 to repaint what's pending, and doing so may involve an "ioctl()"
1369 to see if there's any pending input from an X server, and doing
1370 that for every packet can be costly, especially on a big file. */
1371 if (data_offset >= progbar_nextstep) {
1372 /* Get the sum of the seek positions in all of the files. */
1374 for (i = 0; i < in_file_count; i++)
1375 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1376 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1377 if (progbar_val > 1.0f) {
1378 /* Some file probably grew while we were reading it.
1379 That "shouldn't happen", so we'll just clip the progress
1383 if (progbar != NULL) {
1384 g_snprintf(status_str, sizeof(status_str),
1385 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1386 file_pos / 1024, f_len / 1024);
1387 update_progress_dlg(progbar, progbar_val, status_str);
1389 progbar_nextstep += progbar_quantum;
1393 /* Well, the user decided to abort the merge. */
1397 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1398 wtap_buf_ptr(wth), &write_err)) {
1399 got_write_error = TRUE;
1404 /* We're done merging the files; destroy the progress bar if it was created. */
1405 if (progbar != NULL)
1406 destroy_progress_dlg(progbar);
1408 merge_close_in_files(in_file_count, in_files);
1409 if (!got_read_error && !got_write_error) {
1410 if (!wtap_dump_close(pdh, &write_err))
1411 got_write_error = TRUE;
1413 wtap_dump_close(pdh, &close_err);
1415 if (got_read_error) {
1417 * Find the file on which we got the error, and report the error.
1419 for (i = 0; i < in_file_count; i++) {
1420 if (in_files[i].state == GOT_ERROR) {
1421 /* Put up a message box noting that a read failed somewhere along
1425 case WTAP_ERR_UNSUPPORTED_ENCAP:
1426 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1427 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1430 errmsg = errmsg_errno;
1433 case WTAP_ERR_CANT_READ:
1434 errmsg = "An attempt to read from the capture file %s failed for"
1435 " some unknown reason.";
1438 case WTAP_ERR_SHORT_READ:
1439 errmsg = "The capture file %s appears to have been cut short"
1440 " in the middle of a packet.";
1443 case WTAP_ERR_BAD_RECORD:
1444 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1445 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1448 errmsg = errmsg_errno;
1452 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1453 "An error occurred while reading the"
1454 " capture file %%s: %s.", wtap_strerror(read_err));
1455 errmsg = errmsg_errno;
1458 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1463 if (got_write_error) {
1464 /* Put up an alert box for the write error. */
1465 cf_write_failure_alert_box(out_filename, write_err);
1468 if (got_read_error || got_write_error || stop_flag) {
1469 /* Callers aren't expected to treat an error or an explicit abort
1470 differently - we put up error dialogs ourselves, so they don't
1478 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1480 const char *filter_new = dftext ? dftext : "";
1481 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1483 GTimeVal start_time;
1485 /* if new filter equals old one, do nothing unless told to do so */
1486 if (!force && strcmp(filter_new, filter_old) == 0) {
1492 if (dftext == NULL) {
1493 /* The new filter is an empty filter (i.e., display all packets).
1494 * so leave dfcode==NULL
1498 * We have a filter; make a copy of it (as we'll be saving it),
1499 * and try to compile it.
1501 dftext = g_strdup(dftext);
1502 if (!dfilter_compile(dftext, &dfcode)) {
1503 /* The attempt failed; report an error. */
1504 gchar *safe_dftext = simple_dialog_format_message(dftext);
1505 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1507 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1510 "The following display filter isn't a valid display filter:\n%s\n"
1511 "See the help for a description of the display filter syntax.",
1512 simple_dialog_primary_start(), safe_dfilter_error_msg,
1513 simple_dialog_primary_end(), safe_dftext);
1514 g_free(safe_dfilter_error_msg);
1515 g_free(safe_dftext);
1521 if (dfcode == NULL) {
1522 /* Yes - free the filter text, and set it to null. */
1528 /* We have a valid filter. Replace the current filter. */
1529 g_free(cf->dfilter);
1530 cf->dfilter = dftext;
1531 g_get_current_time(&start_time);
1534 /* Now rescan the packet list, applying the new filter, but not
1535 throwing away information constructed on a previous pass. */
1536 if (dftext == NULL) {
1537 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1539 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1542 /* Cleanup and release all dfilter resources */
1543 dfilter_free(dfcode);
1549 cf_reftime_packets(capture_file *cf)
1552 ref_time_packets(cf);
1556 cf_redissect_packets(capture_file *cf)
1558 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1562 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1563 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1567 char errmsg_errno[1024+1];
1569 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1570 fdata->cap_len, &err, &err_info)) {
1573 case WTAP_ERR_UNSUPPORTED_ENCAP:
1574 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1575 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1580 case WTAP_ERR_BAD_RECORD:
1581 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1582 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1583 wtap_strerror(err), err_info);
1588 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1589 "An error occurred while reading from the file \"%%s\": %s.",
1590 wtap_strerror(err));
1593 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1600 cf_read_frame(capture_file *cf, frame_data *fdata)
1602 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1605 /* Rescan the list of packets, reconstructing the CList.
1607 "action" describes why we're doing this; it's used in the progress
1610 "action_item" describes what we're doing; it's used in the progress
1613 "refilter" is TRUE if we need to re-evaluate the filter expression.
1615 "redissect" is TRUE if we need to make the dissectors reconstruct
1616 any state information they have (because a preference that affects
1617 some dissector has changed, meaning some dissector might construct
1618 its state differently from the way it was constructed the last time). */
1620 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1621 gboolean refilter, gboolean redissect)
1623 /* Rescan packets new packet list */
1625 progdlg_t *progbar = NULL;
1628 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1629 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1630 gboolean selected_frame_seen;
1632 GTimeVal start_time;
1633 gchar status_str[100];
1634 int progbar_nextstep;
1635 int progbar_quantum;
1637 gboolean filtering_tap_listeners;
1639 gboolean add_to_packet_list = FALSE;
1642 /* Compile the current display filter.
1643 * We assume this will not fail since cf->dfilter is only set in
1644 * cf_filter IFF the filter was valid.
1646 compiled = dfilter_compile(cf->dfilter, &dfcode);
1647 g_assert(!cf->dfilter || (compiled && dfcode));
1649 /* Do we have any tap listeners with filters? */
1650 filtering_tap_listeners = have_filtering_tap_listeners();
1652 /* Get the union of the flags for all tap listeners. */
1653 tap_flags = union_of_tap_listener_flags();
1655 reset_tap_listeners();
1656 /* Which frame, if any, is the currently selected frame?
1657 XXX - should the selected frame or the focus frame be the "current"
1658 frame, that frame being the one from which "Find Frame" searches
1660 selected_frame = cf->current_frame;
1662 /* Mark frame num as not found */
1663 selected_frame_num = -1;
1665 /* Freeze the packet list while we redo it, so we don't get any
1666 screen updates while it happens. */
1667 new_packet_list_freeze();
1670 /* We need to re-initialize all the state information that protocols
1671 keep, because some preference that controls a dissector has changed,
1672 which might cause the state information to be constructed differently
1673 by that dissector. */
1675 /* We might receive new packets while redissecting, and we don't
1676 want to dissect those before their time. */
1677 cf->redissecting = TRUE;
1679 /* Cleanup all data structures used for dissection. */
1680 cleanup_dissection();
1681 /* Initialize all data structures used for dissection. */
1684 /* We need to redissect the packets so we have to discard our old
1685 * packet list store. */
1686 new_packet_list_clear();
1687 add_to_packet_list = TRUE;
1690 /* We don't yet know which will be the first and last frames displayed. */
1691 cf->first_displayed = NULL;
1692 cf->last_displayed = NULL;
1694 /* We currently don't display any packets */
1695 cf->displayed_count = 0;
1697 /* Iterate through the list of frames. Call a routine for each frame
1698 to check whether it should be displayed and, if so, add it to
1699 the display list. */
1700 nstime_set_unset(&first_ts);
1701 nstime_set_unset(&prev_dis_ts);
1702 nstime_set_unset(&prev_cap_ts);
1705 /* Update the progress bar when it gets to this value. */
1706 progbar_nextstep = 0;
1707 /* When we reach the value that triggers a progress bar update,
1708 bump that value by this amount. */
1709 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1710 /* Count of packets at which we've looked. */
1712 /* Progress so far. */
1716 g_get_current_time(&start_time);
1718 /* no previous row yet */
1719 prev_frame_num = -1;
1722 preceding_frame_num = -1;
1723 preceding_frame = NULL;
1724 following_frame_num = -1;
1725 following_frame = NULL;
1727 selected_frame_seen = FALSE;
1729 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1730 /* Create the progress bar if necessary.
1731 We check on every iteration of the loop, so that it takes no
1732 longer than the standard time to create it (otherwise, for a
1733 large file, we might take considerably longer than that standard
1734 time in order to get to the next progress bar step). */
1735 if (progbar == NULL)
1736 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1737 &stop_flag, &start_time,
1740 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1741 when we update it, we have to run the GTK+ main loop to get it
1742 to repaint what's pending, and doing so may involve an "ioctl()"
1743 to see if there's any pending input from an X server, and doing
1744 that for every packet can be costly, especially on a big file. */
1745 if (count >= progbar_nextstep) {
1746 /* let's not divide by zero. I should never be started
1747 * with count == 0, so let's assert that
1749 g_assert(cf->count > 0);
1750 progbar_val = (gfloat) count / cf->count;
1752 if (progbar != NULL) {
1753 g_snprintf(status_str, sizeof(status_str),
1754 "%4u of %u frames", count, cf->count);
1755 update_progress_dlg(progbar, progbar_val, status_str);
1758 progbar_nextstep += progbar_quantum;
1762 /* Well, the user decided to abort the filtering. Just stop.
1764 XXX - go back to the previous filter? Users probably just
1765 want not to wait for a filtering operation to finish;
1766 unless we cancel by having no filter, reverting to the
1767 previous filter will probably be even more expensive than
1768 continuing the filtering, as it involves going back to the
1769 beginning and filtering, and even with no filter we currently
1770 have to re-generate the entire clist, which is also expensive.
1772 I'm not sure what Network Monitor does, but it doesn't appear
1773 to give you an unfiltered display if you cancel. */
1780 /* Since all state for the frame was destroyed, mark the frame
1781 * as not visited, free the GSList referring to the state
1782 * data (the per-frame data itself was freed by
1783 * "init_dissection()"), and null out the GSList pointer. */
1784 fdata->flags.visited = 0;
1785 frame_data_cleanup(fdata);
1787 /* cleanup_dissection() calls se_free_all();
1788 * And after that fdata->col_text (which is allocated using se_alloc0())
1789 * no longer points to valid memory.
1791 init_col_text(fdata, cf->cinfo.num_cols);
1794 if (!cf_read_frame(cf, fdata))
1795 break; /* error reading the frame */
1797 /* If the previous frame is displayed, and we haven't yet seen the
1798 selected frame, remember that frame - it's the closest one we've
1799 yet seen before the selected frame. */
1800 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1801 preceding_frame_num = prev_frame_num;
1802 preceding_frame = prev_frame;
1804 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1805 tap_flags, &cf->pseudo_header, cf->pd,
1807 add_to_packet_list);
1809 /* If this frame is displayed, and this is the first frame we've
1810 seen displayed after the selected frame, remember this frame -
1811 it's the closest one we've yet seen at or after the selected
1813 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1814 following_frame_num = fdata->num;
1815 following_frame = fdata;
1817 if (fdata == selected_frame) {
1818 selected_frame_seen = TRUE;
1819 if (fdata->flags.passed_dfilter)
1820 selected_frame_num = fdata->num;
1823 /* Remember this frame - it'll be the previous frame
1824 on the next pass through the loop. */
1825 prev_frame_num = fdata->num;
1829 /* We are done redissecting the packet list. */
1830 cf->redissecting = FALSE;
1833 /* Clear out what remains of the visited flags and per-frame data
1836 XXX - that may cause various forms of bogosity when dissecting
1837 these frames, as they won't have been seen by this sequential
1838 pass, but the only alternative I see is to keep scanning them
1839 even though the user requested that the scan stop, and that
1840 would leave the user stuck with an Wireshark grinding on
1841 until it finishes. Should we just stick them with that? */
1842 for (; fdata != NULL; fdata = fdata->next) {
1843 fdata->flags.visited = 0;
1844 frame_data_cleanup(fdata);
1848 /* We're done filtering the packets; destroy the progress bar if it
1850 if (progbar != NULL)
1851 destroy_progress_dlg(progbar);
1853 /* Unfreeze the packet list. */
1854 if (!add_to_packet_list)
1855 new_packet_list_recreate_visible_rows();
1857 /* Compute the time it took to filter the file */
1858 compute_elapsed(&start_time);
1860 new_packet_list_thaw();
1862 if (selected_frame_num == -1) {
1863 /* The selected frame didn't pass the filter. */
1864 if (selected_frame == NULL) {
1865 /* That's because there *was* no selected frame. Make the first
1866 displayed frame the current frame. */
1867 selected_frame_num = 0;
1869 /* Find the nearest displayed frame to the selected frame (whether
1870 it's before or after that frame) and make that the current frame.
1871 If the next and previous displayed frames are equidistant from the
1872 selected frame, choose the next one. */
1873 g_assert(following_frame == NULL ||
1874 following_frame->num >= selected_frame->num);
1875 g_assert(preceding_frame == NULL ||
1876 preceding_frame->num <= selected_frame->num);
1877 if (following_frame == NULL) {
1878 /* No frame after the selected frame passed the filter, so we
1879 have to select the last displayed frame before the selected
1881 selected_frame_num = preceding_frame_num;
1882 selected_frame = preceding_frame;
1883 } else if (preceding_frame == NULL) {
1884 /* No frame before the selected frame passed the filter, so we
1885 have to select the first displayed frame after the selected
1887 selected_frame_num = following_frame_num;
1888 selected_frame = following_frame;
1890 /* Frames before and after the selected frame passed the filter, so
1891 we'll select the previous frame */
1892 selected_frame_num = preceding_frame_num;
1893 selected_frame = preceding_frame;
1898 if (selected_frame_num == -1) {
1899 /* There are no frames displayed at all. */
1900 cf_unselect_packet(cf);
1902 /* Either the frame that was selected passed the filter, or we've
1903 found the nearest displayed frame to that frame. Select it, make
1904 it the focus row, and make it visible. */
1905 /* Set to invalid to force update of packet list and packet details */
1906 cf->current_row = -1;
1907 if (selected_frame_num == 0) {
1908 new_packet_list_select_first_row();
1910 new_packet_list_find_row_from_data(selected_frame, TRUE);
1914 /* Cleanup and release all dfilter resources */
1915 dfilter_free(dfcode);
1920 * Scan trough all frame data and recalculate the ref time
1921 * without rereading the file.
1922 * XXX - do we need a progres bar or is this fast enough?
1925 ref_time_packets(capture_file *cf)
1929 nstime_set_unset(&first_ts);
1930 nstime_set_unset(&prev_dis_ts);
1933 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1934 /* just add some value here until we know if it is being displayed or not */
1935 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1941 /* If we don't have the time stamp of the first packet in the
1942 capture, it's because this is the first packet. Save the time
1943 stamp of this packet as the time stamp of the first packet. */
1944 if (nstime_is_unset(&first_ts)) {
1945 first_ts = fdata->abs_ts;
1947 /* if this frames is marked as a reference time frame, reset
1948 firstsec and firstusec to this frame */
1949 if(fdata->flags.ref_time){
1950 first_ts = fdata->abs_ts;
1953 /* If we don't have the time stamp of the previous displayed packet,
1954 it's because this is the first displayed packet. Save the time
1955 stamp of this packet as the time stamp of the previous displayed
1957 if (nstime_is_unset(&prev_dis_ts)) {
1958 prev_dis_ts = fdata->abs_ts;
1961 /* Get the time elapsed between the first packet and this packet. */
1962 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1964 /* If it's greater than the current elapsed time, set the elapsed time
1965 to it (we check for "greater than" so as not to be confused by
1966 time moving backwards). */
1967 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1968 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1969 cf->elapsed_time = fdata->rel_ts;
1972 /* Get the time elapsed between the previous displayed packet and
1974 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1976 prev_dis_ts = fdata->abs_ts;
1981 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
1982 /* This frame either passed the display filter list or is marked as
1983 a time reference frame. All time reference frames are displayed
1984 even if they dont pass the display filter */
1985 if(fdata->flags.ref_time){
1986 /* if this was a TIME REF frame we should reset the cum_bytes field */
1987 cum_bytes = fdata->pkt_len;
1988 fdata->cum_bytes = cum_bytes;
1990 /* increase cum_bytes with this packets length */
1991 cum_bytes += fdata->pkt_len;
2004 process_specified_packets(capture_file *cf, packet_range_t *range,
2005 const char *string1, const char *string2, gboolean terminate_is_stop,
2006 gboolean (*callback)(capture_file *, frame_data *,
2007 union wtap_pseudo_header *, const guint8 *, void *),
2008 void *callback_args)
2011 union wtap_pseudo_header pseudo_header;
2012 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2013 psp_return_t ret = PSP_FINISHED;
2015 progdlg_t *progbar = NULL;
2018 gboolean progbar_stop_flag;
2019 GTimeVal progbar_start_time;
2020 gchar progbar_status_str[100];
2021 int progbar_nextstep;
2022 int progbar_quantum;
2023 range_process_e process_this;
2025 /* Update the progress bar when it gets to this value. */
2026 progbar_nextstep = 0;
2027 /* When we reach the value that triggers a progress bar update,
2028 bump that value by this amount. */
2029 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2030 /* Count of packets at which we've looked. */
2032 /* Progress so far. */
2035 progbar_stop_flag = FALSE;
2036 g_get_current_time(&progbar_start_time);
2038 packet_range_process_init(range);
2040 /* Iterate through the list of packets, printing the packets that
2041 were selected by the current display filter. */
2042 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2043 /* Create the progress bar if necessary.
2044 We check on every iteration of the loop, so that it takes no
2045 longer than the standard time to create it (otherwise, for a
2046 large file, we might take considerably longer than that standard
2047 time in order to get to the next progress bar step). */
2048 if (progbar == NULL)
2049 progbar = delayed_create_progress_dlg(string1, string2,
2052 &progbar_start_time,
2055 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2056 when we update it, we have to run the GTK+ main loop to get it
2057 to repaint what's pending, and doing so may involve an "ioctl()"
2058 to see if there's any pending input from an X server, and doing
2059 that for every packet can be costly, especially on a big file. */
2060 if (progbar_count >= progbar_nextstep) {
2061 /* let's not divide by zero. I should never be started
2062 * with count == 0, so let's assert that
2064 g_assert(cf->count > 0);
2065 progbar_val = (gfloat) progbar_count / cf->count;
2067 if (progbar != NULL) {
2068 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2069 "%4u of %u packets", progbar_count, cf->count);
2070 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2073 progbar_nextstep += progbar_quantum;
2076 if (progbar_stop_flag) {
2077 /* Well, the user decided to abort the operation. Just stop,
2078 and arrange to return PSP_STOPPED to our caller, so they know
2079 it was stopped explicitly. */
2086 /* do we have to process this packet? */
2087 process_this = packet_range_process_packet(range, fdata);
2088 if (process_this == range_process_next) {
2089 /* this packet uninteresting, continue with next one */
2091 } else if (process_this == range_processing_finished) {
2092 /* all interesting packets processed, stop the loop */
2096 /* Get the packet */
2097 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2098 /* Attempt to get the packet failed. */
2102 /* Process the packet */
2103 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2104 /* Callback failed. We assume it reported the error appropriately. */
2110 /* We're done printing the packets; destroy the progress bar if
2112 if (progbar != NULL)
2113 destroy_progress_dlg(progbar);
2119 gboolean construct_protocol_tree;
2121 } retap_callback_args_t;
2124 retap_packet(capture_file *cf _U_, frame_data *fdata,
2125 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2128 retap_callback_args_t *args = argsp;
2131 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2132 tap_queue_init(&edt);
2133 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2134 tap_push_tapped_queue(&edt);
2135 epan_dissect_cleanup(&edt);
2141 cf_retap_packets(capture_file *cf)
2143 packet_range_t range;
2144 retap_callback_args_t callback_args;
2145 gboolean filtering_tap_listeners;
2148 /* Do we have any tap listeners with filters? */
2149 filtering_tap_listeners = have_filtering_tap_listeners();
2151 tap_flags = union_of_tap_listener_flags();
2153 /* If any tap listeners have filters, or require the protocol tree,
2154 construct the protocol tree. */
2155 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2156 (tap_flags & TL_REQUIRES_PROTO_TREE);
2158 /* If any tap listeners require the columns, construct them. */
2159 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2161 /* Reset the tap listeners. */
2162 reset_tap_listeners();
2164 /* Iterate through the list of packets, dissecting all packets and
2165 re-running the taps. */
2166 packet_range_init(&range);
2167 packet_range_process_init(&range);
2168 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2169 "all packets", TRUE, retap_packet,
2172 /* Completed successfully. */
2176 /* Well, the user decided to abort the refiltering.
2177 Return CF_READ_ABORTED so our caller knows they did that. */
2178 return CF_READ_ABORTED;
2181 /* Error while retapping. */
2182 return CF_READ_ERROR;
2185 g_assert_not_reached();
2190 print_args_t *print_args;
2191 gboolean print_header_line;
2192 char *header_line_buf;
2193 int header_line_buf_len;
2194 gboolean print_formfeed;
2195 gboolean print_separator;
2199 } print_callback_args_t;
2202 print_packet(capture_file *cf, frame_data *fdata,
2203 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2206 print_callback_args_t *args = argsp;
2213 gboolean proto_tree_needed;
2214 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2215 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2217 /* Create the protocol tree, and make it visible, if we're printing
2218 the dissection or the hex data.
2219 XXX - do we need it if we're just printing the hex data? */
2221 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2222 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2224 /* Fill in the column information if we're printing the summary
2226 if (args->print_args->print_summary) {
2227 col_custom_prime_edt(&edt, &cf->cinfo);
2228 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2229 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2231 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2233 if (args->print_formfeed) {
2234 if (!new_page(args->print_args->stream))
2237 if (args->print_separator) {
2238 if (!print_line(args->print_args->stream, 0, ""))
2244 * We generate bookmarks, if the output format supports them.
2245 * The name is "__frameN__".
2247 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2249 if (args->print_args->print_summary) {
2250 if (args->print_header_line) {
2251 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2253 args->print_header_line = FALSE; /* we might not need to print any more */
2255 cp = &args->line_buf[0];
2257 for (i = 0; i < cf->cinfo.num_cols; i++) {
2258 /* Find the length of the string for this column. */
2259 column_len = (int) strlen(cf->cinfo.col_data[i]);
2260 if (args->col_widths[i] > column_len)
2261 column_len = args->col_widths[i];
2263 /* Make sure there's room in the line buffer for the column; if not,
2264 double its length. */
2265 line_len += column_len + 1; /* "+1" for space */
2266 if (line_len > args->line_buf_len) {
2267 cp_off = (int) (cp - args->line_buf);
2268 args->line_buf_len = 2 * line_len;
2269 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2270 cp = args->line_buf + cp_off;
2273 /* Right-justify the packet number column. */
2274 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2275 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2277 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2279 if (i != cf->cinfo.num_cols - 1)
2285 * Generate a bookmark, using the summary line as the title.
2287 if (!print_bookmark(args->print_args->stream, bookmark_name,
2291 if (!print_line(args->print_args->stream, 0, args->line_buf))
2295 * Generate a bookmark, using "Frame N" as the title, as we're not
2296 * printing the summary line.
2298 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2299 if (!print_bookmark(args->print_args->stream, bookmark_name,
2302 } /* if (print_summary) */
2304 if (args->print_args->print_dissections != print_dissections_none) {
2305 if (args->print_args->print_summary) {
2306 /* Separate the summary line from the tree with a blank line. */
2307 if (!print_line(args->print_args->stream, 0, ""))
2311 /* Print the information in that tree. */
2312 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2315 /* Print a blank line if we print anything after this (aka more than one packet). */
2316 args->print_separator = TRUE;
2318 /* Print a header line if we print any more packet summaries */
2319 args->print_header_line = TRUE;
2322 if (args->print_args->print_hex) {
2323 /* Print the full packet data as hex. */
2324 if (!print_hex_data(args->print_args->stream, &edt))
2327 /* Print a blank line if we print anything after this (aka more than one packet). */
2328 args->print_separator = TRUE;
2330 /* Print a header line if we print any more packet summaries */
2331 args->print_header_line = TRUE;
2332 } /* if (args->print_args->print_dissections != print_dissections_none) */
2334 epan_dissect_cleanup(&edt);
2336 /* do we want to have a formfeed between each packet from now on? */
2337 if(args->print_args->print_formfeed) {
2338 args->print_formfeed = TRUE;
2344 epan_dissect_cleanup(&edt);
2349 cf_print_packets(capture_file *cf, print_args_t *print_args)
2352 print_callback_args_t callback_args;
2360 callback_args.print_args = print_args;
2361 callback_args.print_header_line = TRUE;
2362 callback_args.header_line_buf = NULL;
2363 callback_args.header_line_buf_len = 256;
2364 callback_args.print_formfeed = FALSE;
2365 callback_args.print_separator = FALSE;
2366 callback_args.line_buf = NULL;
2367 callback_args.line_buf_len = 256;
2368 callback_args.col_widths = NULL;
2370 if (!print_preamble(print_args->stream, cf->filename)) {
2371 destroy_print_stream(print_args->stream);
2372 return CF_PRINT_WRITE_ERROR;
2375 if (print_args->print_summary) {
2376 /* We're printing packet summaries. Allocate the header line buffer
2377 and get the column widths. */
2378 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2380 /* Find the widths for each of the columns - maximum of the
2381 width of the title and the width of the data - and construct
2382 a buffer with a line containing the column titles. */
2383 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2384 cp = &callback_args.header_line_buf[0];
2386 for (i = 0; i < cf->cinfo.num_cols; i++) {
2387 /* Don't pad the last column. */
2388 if (i == cf->cinfo.num_cols - 1)
2389 callback_args.col_widths[i] = 0;
2391 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2392 data_width = get_column_char_width(get_column_format(i));
2393 if (data_width > callback_args.col_widths[i])
2394 callback_args.col_widths[i] = data_width;
2397 /* Find the length of the string for this column. */
2398 column_len = (int) strlen(cf->cinfo.col_title[i]);
2399 if (callback_args.col_widths[i] > column_len)
2400 column_len = callback_args.col_widths[i];
2402 /* Make sure there's room in the line buffer for the column; if not,
2403 double its length. */
2404 line_len += column_len + 1; /* "+1" for space */
2405 if (line_len > callback_args.header_line_buf_len) {
2406 cp_off = (int) (cp - callback_args.header_line_buf);
2407 callback_args.header_line_buf_len = 2 * line_len;
2408 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2409 callback_args.header_line_buf_len + 1);
2410 cp = callback_args.header_line_buf + cp_off;
2413 /* Right-justify the packet number column. */
2414 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2415 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2417 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2419 if (i != cf->cinfo.num_cols - 1)
2424 /* Now start out the main line buffer with the same length as the
2425 header line buffer. */
2426 callback_args.line_buf_len = callback_args.header_line_buf_len;
2427 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2428 } /* if (print_summary) */
2430 /* Iterate through the list of packets, printing the packets we were
2432 ret = process_specified_packets(cf, &print_args->range, "Printing",
2433 "selected packets", TRUE, print_packet,
2436 g_free(callback_args.header_line_buf);
2437 g_free(callback_args.line_buf);
2438 g_free(callback_args.col_widths);
2443 /* Completed successfully. */
2447 /* Well, the user decided to abort the printing.
2449 XXX - note that what got generated before they did that
2450 will get printed if we're piping to a print program; we'd
2451 have to write to a file and then hand that to the print
2452 program to make it actually not print anything. */
2456 /* Error while printing.
2458 XXX - note that what got generated before they did that
2459 will get printed if we're piping to a print program; we'd
2460 have to write to a file and then hand that to the print
2461 program to make it actually not print anything. */
2462 destroy_print_stream(print_args->stream);
2463 return CF_PRINT_WRITE_ERROR;
2466 if (!print_finale(print_args->stream)) {
2467 destroy_print_stream(print_args->stream);
2468 return CF_PRINT_WRITE_ERROR;
2471 if (!destroy_print_stream(print_args->stream))
2472 return CF_PRINT_WRITE_ERROR;
2478 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2479 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2485 /* Create the protocol tree, but don't fill in the column information. */
2486 epan_dissect_init(&edt, TRUE, TRUE);
2487 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2489 /* Write out the information in that tree. */
2490 proto_tree_write_pdml(&edt, fh);
2492 epan_dissect_cleanup(&edt);
2498 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2503 fh = ws_fopen(print_args->file, "w");
2505 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2507 write_pdml_preamble(fh);
2510 return CF_PRINT_WRITE_ERROR;
2513 /* Iterate through the list of packets, printing the packets we were
2515 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2516 "selected packets", TRUE,
2517 write_pdml_packet, fh);
2522 /* Completed successfully. */
2526 /* Well, the user decided to abort the printing. */
2530 /* Error while printing. */
2532 return CF_PRINT_WRITE_ERROR;
2535 write_pdml_finale(fh);
2538 return CF_PRINT_WRITE_ERROR;
2541 /* XXX - check for an error */
2548 write_psml_packet(capture_file *cf, frame_data *fdata,
2549 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2554 gboolean proto_tree_needed;
2556 /* Fill in the column information, only create the protocol tree
2557 if having custom columns. */
2558 proto_tree_needed = have_custom_cols(&cf->cinfo);
2559 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2560 col_custom_prime_edt(&edt, &cf->cinfo);
2561 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2562 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2564 /* Write out the information in that tree. */
2565 proto_tree_write_psml(&edt, fh);
2567 epan_dissect_cleanup(&edt);
2573 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2578 fh = ws_fopen(print_args->file, "w");
2580 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2582 write_psml_preamble(fh);
2585 return CF_PRINT_WRITE_ERROR;
2588 /* Iterate through the list of packets, printing the packets we were
2590 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2591 "selected packets", TRUE,
2592 write_psml_packet, fh);
2597 /* Completed successfully. */
2601 /* Well, the user decided to abort the printing. */
2605 /* Error while printing. */
2607 return CF_PRINT_WRITE_ERROR;
2610 write_psml_finale(fh);
2613 return CF_PRINT_WRITE_ERROR;
2616 /* XXX - check for an error */
2623 write_csv_packet(capture_file *cf, frame_data *fdata,
2624 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2629 gboolean proto_tree_needed;
2631 /* Fill in the column information, only create the protocol tree
2632 if having custom columns. */
2633 proto_tree_needed = have_custom_cols(&cf->cinfo);
2634 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2635 col_custom_prime_edt(&edt, &cf->cinfo);
2636 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2637 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2639 /* Write out the information in that tree. */
2640 proto_tree_write_csv(&edt, fh);
2642 epan_dissect_cleanup(&edt);
2648 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2653 fh = ws_fopen(print_args->file, "w");
2655 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2657 write_csv_preamble(fh);
2660 return CF_PRINT_WRITE_ERROR;
2663 /* Iterate through the list of packets, printing the packets we were
2665 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2666 "selected packets", TRUE,
2667 write_csv_packet, fh);
2672 /* Completed successfully. */
2676 /* Well, the user decided to abort the printing. */
2680 /* Error while printing. */
2682 return CF_PRINT_WRITE_ERROR;
2685 write_csv_finale(fh);
2688 return CF_PRINT_WRITE_ERROR;
2691 /* XXX - check for an error */
2698 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2699 union wtap_pseudo_header *pseudo_header _U_,
2700 const guint8 *pd, void *argsp)
2704 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
2709 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2714 fh = ws_fopen(print_args->file, "w");
2717 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2719 write_carrays_preamble(fh);
2723 return CF_PRINT_WRITE_ERROR;
2726 /* Iterate through the list of packets, printing the packets we were
2728 ret = process_specified_packets(cf, &print_args->range,
2730 "selected packets", TRUE,
2731 write_carrays_packet, fh);
2734 /* Completed successfully. */
2737 /* Well, the user decided to abort the printing. */
2740 /* Error while printing. */
2742 return CF_PRINT_WRITE_ERROR;
2745 write_carrays_finale(fh);
2749 return CF_PRINT_WRITE_ERROR;
2757 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2758 search_direction dir)
2762 mdata.string = string;
2763 mdata.string_len = strlen(string);
2764 return find_packet(cf, match_protocol_tree, &mdata, dir);
2768 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2770 mdata->frame_matched = FALSE;
2771 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2772 mdata->string_len = strlen(mdata->string);
2774 /* Iterate through all the nodes looking for matching text */
2775 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2776 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2780 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2782 match_data *mdata = criterion;
2785 /* Load the frame's data. */
2786 if (!cf_read_frame(cf, fdata)) {
2787 /* Attempt to get the packet failed. */
2791 /* Construct the protocol tree, including the displayed text */
2792 epan_dissect_init(&edt, TRUE, TRUE);
2793 /* We don't need the column information */
2794 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2796 /* Iterate through all the nodes, seeing if they have text that matches. */
2798 mdata->frame_matched = FALSE;
2799 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2800 epan_dissect_cleanup(&edt);
2801 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2805 match_subtree_text(proto_node *node, gpointer data)
2807 match_data *mdata = (match_data*) data;
2808 const gchar *string = mdata->string;
2809 size_t string_len = mdata->string_len;
2810 capture_file *cf = mdata->cf;
2811 field_info *fi = PNODE_FINFO(node);
2812 gchar label_str[ITEM_LABEL_LENGTH];
2819 g_assert(fi && "dissection with an invisible proto tree?");
2821 if (mdata->frame_matched) {
2822 /* We already had a match; don't bother doing any more work. */
2826 /* Don't match invisible entries. */
2827 if (PROTO_ITEM_IS_HIDDEN(node))
2830 /* was a free format label produced? */
2832 label_ptr = fi->rep->representation;
2834 /* no, make a generic label */
2835 label_ptr = label_str;
2836 proto_item_fill_label(fi, label_str);
2839 /* Does that label match? */
2840 label_len = strlen(label_ptr);
2841 for (i = 0; i < label_len; i++) {
2842 c_char = label_ptr[i];
2844 c_char = toupper(c_char);
2845 if (c_char == string[c_match]) {
2847 if (c_match == string_len) {
2848 /* No need to look further; we have a match */
2849 mdata->frame_matched = TRUE;
2857 /* Recurse into the subtree, if it exists */
2858 if (node->first_child != NULL)
2859 proto_tree_children_foreach(node, match_subtree_text, mdata);
2863 cf_find_packet_summary_line(capture_file *cf, const char *string,
2864 search_direction dir)
2868 mdata.string = string;
2869 mdata.string_len = strlen(string);
2870 return find_packet(cf, match_summary_line, &mdata, dir);
2874 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2876 match_data *mdata = criterion;
2877 const gchar *string = mdata->string;
2878 size_t string_len = mdata->string_len;
2880 const char *info_column;
2881 size_t info_column_len;
2882 match_result result = MR_NOTMATCHED;
2888 /* Load the frame's data. */
2889 if (!cf_read_frame(cf, fdata)) {
2890 /* Attempt to get the packet failed. */
2894 /* Don't bother constructing the protocol tree */
2895 epan_dissect_init(&edt, FALSE, FALSE);
2896 /* Get the column information */
2897 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2899 /* Find the Info column */
2900 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2901 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2902 /* Found it. See if we match. */
2903 info_column = edt.pi.cinfo->col_data[colx];
2904 info_column_len = strlen(info_column);
2905 for (i = 0; i < info_column_len; i++) {
2906 c_char = info_column[i];
2908 c_char = toupper(c_char);
2909 if (c_char == string[c_match]) {
2911 if (c_match == string_len) {
2912 result = MR_MATCHED;
2921 epan_dissect_cleanup(&edt);
2928 } cbs_t; /* "Counted byte string" */
2931 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2932 search_direction dir)
2937 info.data_len = string_size;
2939 /* String or hex search? */
2941 /* String search - what type of string? */
2942 switch (cf->scs_type) {
2944 case SCS_ASCII_AND_UNICODE:
2945 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2948 return find_packet(cf, match_ascii, &info, dir);
2951 return find_packet(cf, match_unicode, &info, dir);
2954 g_assert_not_reached();
2958 return find_packet(cf, match_binary, &info, dir);
2962 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2964 cbs_t *info = criterion;
2965 const guint8 *ascii_text = info->data;
2966 size_t textlen = info->data_len;
2967 match_result result;
2973 /* Load the frame's data. */
2974 if (!cf_read_frame(cf, fdata)) {
2975 /* Attempt to get the packet failed. */
2979 result = MR_NOTMATCHED;
2980 buf_len = fdata->pkt_len;
2981 for (i = 0; i < buf_len; i++) {
2984 c_char = toupper(c_char);
2986 if (c_char == ascii_text[c_match]) {
2988 if (c_match == textlen) {
2989 result = MR_MATCHED;
2990 cf->search_pos = i; /* Save the position of the last character
2991 for highlighting the field. */
3002 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3004 cbs_t *info = criterion;
3005 const guint8 *ascii_text = info->data;
3006 size_t textlen = info->data_len;
3007 match_result result;
3013 /* Load the frame's data. */
3014 if (!cf_read_frame(cf, fdata)) {
3015 /* Attempt to get the packet failed. */
3019 result = MR_NOTMATCHED;
3020 buf_len = fdata->pkt_len;
3021 for (i = 0; i < buf_len; i++) {
3024 c_char = toupper(c_char);
3025 if (c_char == ascii_text[c_match]) {
3027 if (c_match == textlen) {
3028 result = MR_MATCHED;
3029 cf->search_pos = i; /* Save the position of the last character
3030 for highlighting the field. */
3040 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3042 cbs_t *info = criterion;
3043 const guint8 *ascii_text = info->data;
3044 size_t textlen = info->data_len;
3045 match_result result;
3051 /* Load the frame's data. */
3052 if (!cf_read_frame(cf, fdata)) {
3053 /* Attempt to get the packet failed. */
3057 result = MR_NOTMATCHED;
3058 buf_len = fdata->pkt_len;
3059 for (i = 0; i < buf_len; i++) {
3062 c_char = toupper(c_char);
3063 if (c_char == ascii_text[c_match]) {
3066 if (c_match == textlen) {
3067 result = MR_MATCHED;
3068 cf->search_pos = i; /* Save the position of the last character
3069 for highlighting the field. */
3079 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3081 cbs_t *info = criterion;
3082 const guint8 *binary_data = info->data;
3083 size_t datalen = info->data_len;
3084 match_result result;
3089 /* Load the frame's data. */
3090 if (!cf_read_frame(cf, fdata)) {
3091 /* Attempt to get the packet failed. */
3095 result = MR_NOTMATCHED;
3096 buf_len = fdata->pkt_len;
3097 for (i = 0; i < buf_len; i++) {
3098 if (cf->pd[i] == binary_data[c_match]) {
3100 if (c_match == datalen) {
3101 result = MR_MATCHED;
3102 cf->search_pos = i; /* Save the position of the last character
3103 for highlighting the field. */
3113 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3114 search_direction dir)
3116 return find_packet(cf, match_dfilter, sfcode, dir);
3120 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3121 search_direction dir)
3126 if (!dfilter_compile(filter, &sfcode)) {
3128 * XXX - this shouldn't happen, as the filter string is machine
3133 if (sfcode == NULL) {
3135 * XXX - this shouldn't happen, as the filter string is machine
3140 result = find_packet(cf, match_dfilter, sfcode, dir);
3141 dfilter_free(sfcode);
3146 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3148 dfilter_t *sfcode = criterion;
3150 match_result result;
3152 /* Load the frame's data. */
3153 if (!cf_read_frame(cf, fdata)) {
3154 /* Attempt to get the packet failed. */
3158 epan_dissect_init(&edt, TRUE, FALSE);
3159 epan_dissect_prime_dfilter(&edt, sfcode);
3160 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3161 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3162 epan_dissect_cleanup(&edt);
3167 cf_find_packet_marked(capture_file *cf, search_direction dir)
3169 return find_packet(cf, match_marked, NULL, dir);
3173 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3175 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3179 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3181 return find_packet(cf, match_time_reference, NULL, dir);
3185 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3187 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3191 find_packet(capture_file *cf,
3192 match_result (*match_function)(capture_file *, frame_data *, void *),
3193 void *criterion, search_direction dir)
3195 frame_data *start_fd;
3197 frame_data *new_fd = NULL;
3198 progdlg_t *progbar = NULL;
3203 GTimeVal start_time;
3204 gchar status_str[100];
3205 int progbar_nextstep;
3206 int progbar_quantum;
3208 match_result result;
3210 start_fd = cf->current_frame;
3211 if (start_fd != NULL) {
3212 /* Iterate through the list of packets, starting at the packet we've
3213 picked, calling a routine to run the filter on the packet, see if
3214 it matches, and stop if so. */
3218 /* Update the progress bar when it gets to this value. */
3219 progbar_nextstep = 0;
3220 /* When we reach the value that triggers a progress bar update,
3221 bump that value by this amount. */
3222 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3223 /* Progress so far. */
3227 g_get_current_time(&start_time);
3229 title = cf->sfilter?cf->sfilter:"";
3231 /* Create the progress bar if necessary.
3232 We check on every iteration of the loop, so that it takes no
3233 longer than the standard time to create it (otherwise, for a
3234 large file, we might take considerably longer than that standard
3235 time in order to get to the next progress bar step). */
3236 if (progbar == NULL)
3237 progbar = delayed_create_progress_dlg("Searching", title,
3238 FALSE, &stop_flag, &start_time, progbar_val);
3240 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3241 when we update it, we have to run the GTK+ main loop to get it
3242 to repaint what's pending, and doing so may involve an "ioctl()"
3243 to see if there's any pending input from an X server, and doing
3244 that for every packet can be costly, especially on a big file. */
3245 if (count >= progbar_nextstep) {
3246 /* let's not divide by zero. I should never be started
3247 * with count == 0, so let's assert that
3249 g_assert(cf->count > 0);
3251 progbar_val = (gfloat) count / cf->count;
3253 if (progbar != NULL) {
3254 g_snprintf(status_str, sizeof(status_str),
3255 "%4u of %u packets", count, cf->count);
3256 update_progress_dlg(progbar, progbar_val, status_str);
3259 progbar_nextstep += progbar_quantum;
3263 /* Well, the user decided to abort the search. Go back to the
3264 frame where we started. */
3269 /* Go past the current frame. */
3270 if (dir == SD_BACKWARD) {
3271 /* Go on to the previous frame. */
3272 fdata = fdata->prev;
3273 if (fdata == NULL) {
3275 * XXX - other apps have a bit more of a detailed message
3276 * for this, and instead of offering "OK" and "Cancel",
3277 * they offer things such as "Continue" and "Cancel";
3278 * we need an API for popping up alert boxes with
3279 * {Verb} and "Cancel".
3282 if (prefs.gui_find_wrap)
3284 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3285 fdata = cf->plist_end; /* wrap around */
3289 statusbar_push_temporary_msg("Search reached the beginning.");
3290 fdata = start_fd; /* stay on previous packet */
3294 /* Go on to the next frame. */
3295 fdata = fdata->next;
3296 if (fdata == NULL) {
3297 if (prefs.gui_find_wrap)
3299 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3300 fdata = cf->plist_start; /* wrap around */
3304 statusbar_push_temporary_msg("Search reached the end.");
3305 fdata = start_fd; /* stay on previous packet */
3312 /* Is this packet in the display? */
3313 if (fdata->flags.passed_dfilter) {
3314 /* Yes. Does it match the search criterion? */
3315 result = (*match_function)(cf, fdata, criterion);
3316 if (result == MR_ERROR) {
3317 /* Error; our caller has reported the error. Go back to the frame
3318 where we started. */
3321 } else if (result == MR_MATCHED) {
3322 /* Yes. Go to the new frame. */
3328 if (fdata == start_fd) {
3329 /* We're back to the frame we were on originally, and that frame
3330 doesn't match the search filter. The search failed. */
3335 /* We're done scanning the packets; destroy the progress bar if it
3337 if (progbar != NULL)
3338 destroy_progress_dlg(progbar);
3341 if (new_fd != NULL) {
3342 /* Find and select */
3343 cf->search_in_progress = TRUE;
3344 row = new_packet_list_find_row_from_data(fdata, TRUE);
3345 cf->search_in_progress = FALSE;
3346 cf->search_pos = 0; /* Reset the position */
3348 /* We didn't find a row even though we know that a frame
3349 * exists that satifies the search criteria. This means that the
3350 * frame isn't being displayed currently so we can't select it. */
3351 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3352 "%sEnd of capture exceeded!%s\n\n"
3353 "The capture file is probably not fully loaded.",
3354 simple_dialog_primary_start(), simple_dialog_primary_end());
3357 return TRUE; /* success */
3359 return FALSE; /* failure */
3363 cf_goto_frame(capture_file *cf, guint fnumber)
3367 for (fdata = cf->plist_start; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3370 if (fdata == NULL) {
3371 /* we didn't find a packet with that packet number */
3372 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3373 return FALSE; /* we failed to go to that packet */
3375 if (!fdata->flags.passed_dfilter) {
3376 /* that packet currently isn't displayed */
3377 /* XXX - add it to the set of displayed packets? */
3378 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3379 return FALSE; /* we failed to go to that packet */
3382 new_packet_list_find_row_from_data(fdata, TRUE);
3383 return TRUE; /* we got to that packet */
3389 /* Find and select */
3390 new_packet_list_select_first_row();
3391 return TRUE; /* we got to that packet */
3395 cf_goto_bottom_frame()
3397 /* Find and select */
3398 new_packet_list_select_last_row();
3399 return TRUE; /* we got to that packet */
3403 * Go to frame specified by currently selected protocol tree item.
3406 cf_goto_framenum(capture_file *cf)
3408 header_field_info *hfinfo;
3411 if (cf->finfo_selected) {
3412 hfinfo = cf->finfo_selected->hfinfo;
3414 if (hfinfo->type == FT_FRAMENUM) {
3415 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3417 return cf_goto_frame(cf, framenum);
3424 /* Select the packet on a given row. */
3426 cf_select_packet(capture_file *cf, int row)
3430 /* Get the frame data struct pointer for this frame */
3431 fdata = new_packet_list_get_row_data(row);
3433 if (fdata == NULL) {
3434 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3435 the first entry is added to it by "real_insert_row()", that row
3436 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3437 our version and the vanilla GTK+ version).
3439 This means that a "select-row" signal is emitted; this causes
3440 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3443 "cf_select_packet()" fetches, above, the data associated with the
3444 row that was selected; however, as "gtk_clist_append()", which
3445 called "real_insert_row()", hasn't yet returned, we haven't yet
3446 associated any data with that row, so we get back a null pointer.
3448 We can't assume that there's only one frame in the frame list,
3449 either, as we may be filtering the display.
3451 We therefore assume that, if "row" is 0, i.e. the first row
3452 is being selected, and "cf->first_displayed" equals
3453 "cf->last_displayed", i.e. there's only one frame being
3454 displayed, that frame is the frame we want.
3456 This means we have to set "cf->first_displayed" and
3457 "cf->last_displayed" before adding the row to the
3458 GtkCList; see the comment in "add_packet_to_packet_list()". */
3460 if (row == 0 && cf->first_displayed == cf->last_displayed)
3461 fdata = cf->first_displayed;
3464 /* If fdata _still_ isn't set simply give up. */
3465 if (fdata == NULL) {
3469 /* Get the data in that frame. */
3470 if (!cf_read_frame (cf, fdata)) {
3474 /* Record that this frame is the current frame. */
3475 cf->current_frame = fdata;
3476 cf->current_row = row;
3478 /* Create the logical protocol tree. */
3479 if (cf->edt != NULL)
3480 epan_dissect_free(cf->edt);
3482 /* We don't need the columns here. */
3483 cf->edt = epan_dissect_new(TRUE, TRUE);
3485 tap_build_interesting(cf->edt);
3486 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3489 dfilter_macro_build_ftv_cache(cf->edt->tree);
3491 cf_callback_invoke(cf_cb_packet_selected, cf);
3494 /* Unselect the selected packet, if any. */
3496 cf_unselect_packet(capture_file *cf)
3498 /* Destroy the epan_dissect_t for the unselected packet. */
3499 if (cf->edt != NULL) {
3500 epan_dissect_free(cf->edt);
3504 /* No packet is selected. */
3505 cf->current_frame = NULL;
3506 cf->current_row = 0;
3508 cf_callback_invoke(cf_cb_packet_unselected, cf);
3510 /* No protocol tree means no selected field. */
3511 cf_unselect_field(cf);
3514 /* Unset the selected protocol tree field, if any. */
3516 cf_unselect_field(capture_file *cf)
3518 cf->finfo_selected = NULL;
3520 cf_callback_invoke(cf_cb_field_unselected, cf);
3524 * Mark a particular frame.
3527 cf_mark_frame(capture_file *cf, frame_data *frame)
3529 if (! frame->flags.marked) {
3530 frame->flags.marked = TRUE;
3531 if (cf->count > cf->marked_count)
3537 * Unmark a particular frame.
3540 cf_unmark_frame(capture_file *cf, frame_data *frame)
3542 if (frame->flags.marked) {
3543 frame->flags.marked = FALSE;
3544 if (cf->marked_count > 0)
3550 * Ignore a particular frame.
3553 cf_ignore_frame(capture_file *cf, frame_data *frame)
3555 if (! frame->flags.ignored) {
3556 frame->flags.ignored = TRUE;
3557 if (cf->count > cf->ignored_count)
3558 cf->ignored_count++;
3563 * Un-ignore a particular frame.
3566 cf_unignore_frame(capture_file *cf, frame_data *frame)
3568 if (frame->flags.ignored) {
3569 frame->flags.ignored = FALSE;
3570 if (cf->ignored_count > 0)
3571 cf->ignored_count--;
3578 } save_callback_args_t;
3581 * Save a capture to a file, in a particular format, saving either
3582 * all packets, all currently-displayed packets, or all marked packets.
3584 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3585 * up a message box for the failure.
3588 save_packet(capture_file *cf _U_, frame_data *fdata,
3589 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3592 save_callback_args_t *args = argsp;
3593 struct wtap_pkthdr hdr;
3596 /* init the wtap header for saving */
3597 hdr.ts.secs = fdata->abs_ts.secs;
3598 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3599 hdr.caplen = fdata->cap_len;
3600 hdr.len = fdata->pkt_len;
3601 hdr.pkt_encap = fdata->lnk_t;
3603 /* and save the packet */
3604 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3605 cf_write_failure_alert_box(args->fname, err);
3612 * Can this capture file be saved in any format except by copying the raw data?
3615 cf_can_save_as(capture_file *cf)
3619 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3620 /* To save a file with Wiretap, Wiretap has to handle that format,
3621 and its code to handle that format must be able to write a file
3622 with this file's encapsulation type. */
3623 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3624 /* OK, we can write it out in this type. */
3629 /* No, we couldn't save it in any format. */
3634 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3636 gchar *from_filename;
3640 save_callback_args_t callback_args;
3642 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3644 /* don't write over an existing file. */
3645 /* this should've been already checked by our caller, just to be sure... */
3646 if (file_exists(fname)) {
3647 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3648 "%sCapture file: \"%s\" already exists!%s\n\n"
3649 "Please choose a different filename.",
3650 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3654 packet_range_process_init(range);
3656 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3657 /* We're not filtering packets, and we're saving it in the format
3658 it's already in, so we can just move or copy the raw data. */
3660 if (cf->is_tempfile) {
3661 /* The file being saved is a temporary file from a live
3662 capture, so it doesn't need to stay around under that name;
3663 first, try renaming the capture buffer file to the new name. */
3665 if (ws_rename(cf->filename, fname) == 0) {
3666 /* That succeeded - there's no need to copy the source file. */
3667 from_filename = NULL;
3670 if (errno == EXDEV) {
3671 /* They're on different file systems, so we have to copy the
3674 from_filename = cf->filename;
3676 /* The rename failed, but not because they're on different
3677 file systems - put up an error message. (Or should we
3678 just punt and try to copy? The only reason why I'd
3679 expect the rename to fail and the copy to succeed would
3680 be if we didn't have permission to remove the file from
3681 the temporary directory, and that might be fixable - but
3682 is it worth requiring the user to go off and fix it?) */
3683 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3684 file_rename_error_message(errno), fname);
3690 from_filename = cf->filename;
3693 /* It's a permanent file, so we should copy it, and not remove the
3696 from_filename = cf->filename;
3700 /* Copy the file, if we haven't moved it. */
3701 if (!copy_file_binary_mode(from_filename, fname))
3705 /* Either we're filtering packets, or we're saving in a different
3706 format; we can't do that by copying or moving the capture file,
3707 we have to do it by writing the packets out in Wiretap. */
3708 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3711 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3715 /* XXX - we let the user save a subset of the packets.
3717 If we do that, should we make that file the current file? If so,
3718 it means we can no longer get at the other packets. What does
3721 /* Iterate through the list of packets, processing the packets we were
3724 XXX - we've already called "packet_range_process_init(range)", but
3725 "process_specified_packets()" will do it again. Fortunately,
3726 that's harmless in this case, as we haven't done anything to
3727 "range" since we initialized it. */
3728 callback_args.pdh = pdh;
3729 callback_args.fname = fname;
3730 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3731 TRUE, save_packet, &callback_args)) {
3734 /* Completed successfully. */
3738 /* The user decided to abort the saving.
3739 XXX - remove the output file? */
3743 /* Error while saving. */
3744 wtap_dump_close(pdh, &err);
3748 if (!wtap_dump_close(pdh, &err)) {
3749 cf_close_failure_alert_box(fname, err);
3754 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3756 if (packet_range_process_all(range)) {
3757 /* We saved the entire capture, not just some packets from it.
3758 Open and read the file we saved it to.
3760 XXX - this is somewhat of a waste; we already have the
3761 packets, all this gets us is updated file type information
3762 (which we could just stuff into "cf"), and having the new
3763 file be the one we have opened and from which we're reading
3764 the data, and it means we have to spend time opening and
3765 reading the file, which could be a significant amount of
3766 time if the file is large. */
3767 cf->user_saved = TRUE;
3769 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3770 /* XXX - report errors if this fails?
3771 What should we return if it fails or is aborted? */
3773 switch (cf_read(cf, TRUE)) {
3777 /* Just because we got an error, that doesn't mean we were unable
3778 to read any of the file; we handle what we could get from the
3782 case CF_READ_ABORTED:
3783 /* The user bailed out of re-reading the capture file; the
3784 capture file has been closed - just return (without
3785 changing any menu settings; "cf_close()" set them
3786 correctly for the "no capture file open" state). */
3789 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3795 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3800 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3801 gboolean for_writing, int file_type)
3804 /* Wiretap error. */
3807 case WTAP_ERR_NOT_REGULAR_FILE:
3808 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3809 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3813 case WTAP_ERR_RANDOM_OPEN_PIPE:
3814 /* Seen only when opening a capture file for reading. */
3815 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3816 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3820 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3821 /* Seen only when opening a capture file for reading. */
3822 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3823 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3827 case WTAP_ERR_UNSUPPORTED:
3828 /* Seen only when opening a capture file for reading. */
3829 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3830 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3832 filename, err_info);
3836 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3837 /* Seen only when opening a capture file for writing. */
3838 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3839 "The file \"%s\" is a pipe, and %s capture files can't be "
3840 "written to a pipe.",
3841 filename, wtap_file_type_string(file_type));
3844 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3845 /* Seen only when opening a capture file for writing. */
3846 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3847 "Wireshark doesn't support writing capture files in that format.");
3850 case WTAP_ERR_UNSUPPORTED_ENCAP:
3852 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3853 "Wireshark can't save this capture in that format.");
3855 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3856 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3858 filename, err_info);
3863 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3865 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3866 "Wireshark can't save this capture in that format.");
3868 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3869 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3874 case WTAP_ERR_BAD_RECORD:
3875 /* Seen only when opening a capture file for reading. */
3876 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3877 "The file \"%s\" appears to be damaged or corrupt.\n"
3879 filename, err_info);
3883 case WTAP_ERR_CANT_OPEN:
3885 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3886 "The file \"%s\" could not be created for some unknown reason.",
3889 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3890 "The file \"%s\" could not be opened for some unknown reason.",
3895 case WTAP_ERR_SHORT_READ:
3896 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3897 "The file \"%s\" appears to have been cut short"
3898 " in the middle of a packet or other data.",
3902 case WTAP_ERR_SHORT_WRITE:
3903 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3904 "A full header couldn't be written to the file \"%s\".",
3908 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3909 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3910 "Gzip compression not supported by this file type.");
3914 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3915 "The file \"%s\" could not be %s: %s.",
3917 for_writing ? "created" : "opened",
3918 wtap_strerror(err));
3923 open_failure_alert_box(filename, err, for_writing);
3928 file_rename_error_message(int err)
3931 static char errmsg_errno[1024+1];
3936 errmsg = "The path to the file \"%s\" doesn't exist.";
3940 errmsg = "You don't have permission to move the capture file to \"%s\".";
3944 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3945 "The file \"%%s\" could not be moved: %s.",
3946 wtap_strerror(err));
3947 errmsg = errmsg_errno;
3954 cf_write_failure_alert_box(const char *filename, int err)
3957 /* Wiretap error. */
3958 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3959 "An error occurred while writing to the file \"%s\": %s.",
3960 filename, wtap_strerror(err));
3963 write_failure_alert_box(filename, err);
3967 /* Check for write errors - if the file is being written to an NFS server,
3968 a write error may not show up until the file is closed, as NFS clients
3969 might not send writes to the server until the "write()" call finishes,
3970 so that the write may fail on the server but the "write()" may succeed. */
3972 cf_close_failure_alert_box(const char *filename, int err)
3975 /* Wiretap error. */
3978 case WTAP_ERR_CANT_CLOSE:
3979 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3980 "The file \"%s\" couldn't be closed for some unknown reason.",
3984 case WTAP_ERR_SHORT_WRITE:
3985 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3986 "Not all the packets could be written to the file \"%s\".",
3991 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3992 "An error occurred while closing the file \"%s\": %s.",
3993 filename, wtap_strerror(err));
3998 We assume that a close error from the OS is really a write error. */
3999 write_failure_alert_box(filename, err);
4003 /* Reload the current capture file. */
4005 cf_reload(capture_file *cf) {
4007 gboolean is_tempfile;
4010 /* If the file could be opened, "cf_open()" calls "cf_close()"
4011 to get rid of state for the old capture file before filling in state
4012 for the new capture file. "cf_close()" will remove the file if
4013 it's a temporary file; we don't want that to happen (for one thing,
4014 it'd prevent subsequent reopens from working). Remember whether it's
4015 a temporary file, mark it as not being a temporary file, and then
4016 reopen it as the type of file it was.
4018 Also, "cf_close()" will free "cf->filename", so we must make
4019 a copy of it first. */
4020 filename = g_strdup(cf->filename);
4021 is_tempfile = cf->is_tempfile;
4022 cf->is_tempfile = FALSE;
4023 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4024 switch (cf_read(cf, FALSE)) {
4028 /* Just because we got an error, that doesn't mean we were unable
4029 to read any of the file; we handle what we could get from the
4033 case CF_READ_ABORTED:
4034 /* The user bailed out of re-reading the capture file; the
4035 capture file has been closed - just free the capture file name
4036 string and return (without changing the last containing
4042 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4043 Instead, the file was left open, so we should restore "cf->is_tempfile"
4046 XXX - change the menu? Presumably "cf_open()" will do that;
4047 make sure it does! */
4048 cf->is_tempfile = is_tempfile;
4050 /* "cf_open()" made a copy of the file name we handed it, so
4051 we should free up our copy. */
4061 * indent-tabs-mode: nil
4064 * ex: set shiftwidth=2 tabstop=8 expandtab
4065 * :indentSize=2:tabSize=8:noTabs=true: