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;
745 case WTAP_ERR_DECOMPRESS:
746 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
747 "The compressed capture file appears to be damaged or corrupt.\n"
750 errmsg = errmsg_errno;
754 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
755 "An error occurred while reading the"
756 " capture file: %s.", wtap_strerror(err));
757 errmsg = errmsg_errno;
760 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
761 return CF_READ_ERROR;
768 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
770 cf_status_t cf_status;
772 cf_status = cf_open(cf, fname, is_tempfile, err);
777 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
779 gint64 data_offset = 0;
781 volatile int newly_displayed_packets = 0;
783 gboolean filtering_tap_listeners;
787 /* Compile the current display filter.
788 * We assume this will not fail since cf->dfilter is only set in
789 * cf_filter IFF the filter was valid.
791 compiled = dfilter_compile(cf->dfilter, &dfcode);
792 g_assert(!cf->dfilter || (compiled && dfcode));
794 /* Do we have any tap listeners with filters? */
795 filtering_tap_listeners = have_filtering_tap_listeners();
797 /* Get the union of the flags for all tap listeners. */
798 tap_flags = union_of_tap_listener_flags();
802 new_packet_list_check_end();
803 /* Don't freeze/thaw the list when doing live capture */
804 /*new_packet_list_freeze();*/
806 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
808 while (to_read != 0) {
809 wtap_cleareof(cf->wth);
810 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
813 if (cf->state == FILE_READ_ABORTED) {
814 /* Well, the user decided to exit Wireshark. Break out of the
815 loop, and let the code below (which is called even if there
816 aren't any packets left to read) exit. */
820 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
821 data_offset) != -1) {
822 newly_displayed_packets++;
825 CATCH(OutOfMemoryError) {
828 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
829 "%sOut Of Memory!%s\n"
831 "Sorry, but Wireshark has to terminate now!\n"
833 "The capture file is not lost, it can be found at:\n"
836 "Some infos / workarounds can be found at:\n"
837 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
838 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
839 /* we have to terminate, as we cannot recover from the memory error */
840 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
842 main_window_update();
843 /* XXX - how to avoid a busy wait? */
846 /* Don't freeze/thaw the list when doing live capture */
847 /*new_packet_list_thaw();*/
848 return CF_READ_ABORTED;
854 /* Cleanup and release all dfilter resources */
856 dfilter_free(dfcode);
859 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
860 cf->count, cf->state, *err);*/
862 /* Don't freeze/thaw the list when doing live capture */
863 /*new_packet_list_thaw();*/
864 /* With the new packet list the first packet
865 * isn't automatically selected.
867 if(!cf->current_frame)
868 new_packet_list_select_first_row();
870 /* moving to the end of the packet list - if the user requested so and
871 we have some new packets. */
872 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
873 new_packet_list_moveto_end();
875 if (cf->state == FILE_READ_ABORTED) {
876 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
877 so that our caller can kill off the capture child process;
878 this will cause an EOF on the pipe from the child, so
879 "cf_finish_tail()" will be called, and it will clean up
881 return CF_READ_ABORTED;
882 } else if (*err != 0) {
883 /* We got an error reading the capture file.
884 XXX - pop up a dialog box instead? */
885 g_warning("Error \"%s\" while reading: \"%s\"\n",
886 wtap_strerror(*err), cf->filename);
888 return CF_READ_ERROR;
894 cf_fake_continue_tail(capture_file *cf) {
895 cf->state = FILE_READ_DONE;
899 cf_finish_tail(capture_file *cf, int *err)
904 gboolean filtering_tap_listeners;
908 /* Compile the current display filter.
909 * We assume this will not fail since cf->dfilter is only set in
910 * cf_filter IFF the filter was valid.
912 compiled = dfilter_compile(cf->dfilter, &dfcode);
913 g_assert(!cf->dfilter || (compiled && dfcode));
915 /* Do we have any tap listeners with filters? */
916 filtering_tap_listeners = have_filtering_tap_listeners();
918 /* Get the union of the flags for all tap listeners. */
919 tap_flags = union_of_tap_listener_flags();
921 if(cf->wth == NULL) {
923 return CF_READ_ERROR;
926 new_packet_list_check_end();
927 /* Don't freeze/thaw the list when doing live capture */
928 /*new_packet_list_freeze();*/
930 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
931 if (cf->state == FILE_READ_ABORTED) {
932 /* Well, the user decided to abort the read. Break out of the
933 loop, and let the code below (which is called even if there
934 aren't any packets left to read) exit. */
937 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
940 /* Cleanup and release all dfilter resources */
942 dfilter_free(dfcode);
945 /* Don't freeze/thaw the list when doing live capture */
946 /*new_packet_list_thaw();*/
948 if (cf->state == FILE_READ_ABORTED) {
949 /* Well, the user decided to abort the read. We're only called
950 when the child capture process closes the pipe to us (meaning
951 it's probably exited), so we can just close the capture
952 file; we return CF_READ_ABORTED so our caller can do whatever
953 is appropriate when that happens. */
955 return CF_READ_ABORTED;
958 if (auto_scroll_live && cf->plist_end != NULL)
959 new_packet_list_moveto_end();
961 /* We're done reading sequentially through the file. */
962 cf->state = FILE_READ_DONE;
964 /* We're done reading sequentially through the file; close the
965 sequential I/O side, to free up memory it requires. */
966 wtap_sequential_close(cf->wth);
968 /* Allow the protocol dissectors to free up memory that they
969 * don't need after the sequential run-through of the packets. */
970 postseq_cleanup_all_protocols();
972 /* Set the file encapsulation type now; we don't know what it is until
973 we've looked at all the packets, as we don't know until then whether
974 there's more than one type (and thus whether it's
975 WTAP_ENCAP_PER_PACKET). */
976 cf->lnk_t = wtap_file_encap(cf->wth);
979 /* We got an error reading the capture file.
980 XXX - pop up a dialog box? */
981 return CF_READ_ERROR;
986 #endif /* HAVE_LIBPCAP */
989 cf_get_display_name(capture_file *cf)
991 const gchar *displayname;
993 /* Return a name to use in displays */
994 if (!cf->is_tempfile) {
995 /* Get the last component of the file name, and use that. */
997 displayname = get_basename(cf->filename);
999 displayname="(No file)";
1002 /* The file we read is a temporary file from a live capture;
1003 we don't mention its name. */
1005 displayname = cf->source;
1007 displayname = "(Untitled)";
1013 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1019 cf->source = g_strdup(source);
1021 cf->source = g_strdup("");
1025 const gchar *cf_get_tempfile_source(capture_file *cf) {
1033 /* XXX - use a macro instead? */
1035 cf_get_packet_count(capture_file *cf)
1040 /* XXX - use a macro instead? */
1042 cf_set_packet_count(capture_file *cf, int packet_count)
1044 cf->count = packet_count;
1047 /* XXX - use a macro instead? */
1049 cf_is_tempfile(capture_file *cf)
1051 return cf->is_tempfile;
1054 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1056 cf->is_tempfile = is_tempfile;
1060 /* XXX - use a macro instead? */
1061 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1063 cf->drops_known = drops_known;
1066 /* XXX - use a macro instead? */
1067 void cf_set_drops(capture_file *cf, guint32 drops)
1072 /* XXX - use a macro instead? */
1073 gboolean cf_get_drops_known(capture_file *cf)
1075 return cf->drops_known;
1078 /* XXX - use a macro instead? */
1079 guint32 cf_get_drops(capture_file *cf)
1084 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1086 cf->rfcode = rfcode;
1090 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1091 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1093 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1095 gboolean add_to_packet_list)
1097 gboolean create_proto_tree = FALSE;
1102 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1104 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1105 &first_ts, &prev_dis_ts, &prev_cap_ts);
1108 + we have a display filter and are re-applying it;
1109 + we have tap listeners with filters;
1110 + we have tap listeners that require a protocol tree;
1112 allocate a protocol tree root node, so that we'll construct
1113 a protocol tree against which a filter expression can be
1115 if ((dfcode != NULL && refilter) ||
1116 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1117 create_proto_tree = TRUE;
1119 /* Dissect the frame. */
1120 epan_dissect_init(&edt, create_proto_tree, FALSE);
1122 if (dfcode != NULL && refilter) {
1123 epan_dissect_prime_dfilter(&edt, dfcode);
1126 tap_queue_init(&edt);
1127 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1128 tap_push_tapped_queue(&edt);
1130 /* If we have a display filter, apply it if we're refiltering, otherwise
1131 leave the "passed_dfilter" flag alone.
1133 If we don't have a display filter, set "passed_dfilter" to 1. */
1134 if (dfcode != NULL) {
1136 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1139 fdata->flags.passed_dfilter = 1;
1141 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1142 cf->displayed_count++;
1144 if (add_to_packet_list) {
1145 /* We fill the needed columns from new_packet_list */
1146 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1149 if(fdata->flags.passed_dfilter || fdata->flags.ref_time)
1151 frame_data_set_after_dissect(fdata, &cum_bytes, &prev_dis_ts);
1153 /* If we haven't yet seen the first frame, this is it.
1155 XXX - we must do this before we add the row to the display,
1156 as, if the display's GtkCList's selection mode is
1157 GTK_SELECTION_BROWSE, when the first entry is added to it,
1158 "cf_select_packet()" will be called, and it will fetch the row
1159 data for the 0th row, and will get a null pointer rather than
1160 "fdata", as "gtk_clist_append()" won't yet have returned and
1161 thus "gtk_clist_set_row_data()" won't yet have been called.
1163 We thus need to leave behind bread crumbs so that
1164 "cf_select_packet()" can find this frame. See the comment
1165 in "cf_select_packet()". */
1166 if (cf->first_displayed == NULL)
1167 cf->first_displayed = fdata;
1169 /* This is the last frame we've seen so far. */
1170 cf->last_displayed = fdata;
1173 epan_dissect_cleanup(&edt);
1178 * Initialize the col_text and col_text_len arrays.
1181 init_col_text(frame_data *fdata, gint num_cols)
1183 fdata->col_text_len = se_alloc0(sizeof(*fdata->col_text_len) * num_cols);
1184 fdata->col_text = se_alloc0(sizeof(*fdata->col_text) * num_cols);
1187 /* read in a new packet */
1188 /* returns the row of the new packet in the packet list or -1 if not displayed */
1190 read_packet(capture_file *cf, dfilter_t *dfcode,
1191 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1193 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1194 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1195 const guchar *buf = wtap_buf_ptr(cf->wth);
1202 /* Allocate the next list entry, and add it to the list.
1203 * memory chunks have been deprecated in favor of the slice allocator,
1204 * which has been added in 2.10
1206 #if GLIB_CHECK_VERSION(2,10,0)
1207 fdata = g_slice_new(frame_data);
1209 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1212 frame_data_init(fdata, cf->count, phdr, offset, cum_bytes);
1213 init_col_text(fdata, cf->cinfo.num_cols);
1218 epan_dissect_init(&edt, TRUE, FALSE);
1219 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1220 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1221 passed = dfilter_apply_edt(cf->rfcode, &edt);
1222 epan_dissect_cleanup(&edt);
1226 cap_file_add_fdata(cf, fdata);
1228 cf->f_datalen = offset + fdata->cap_len;
1230 if (!cf->redissecting) {
1231 row = add_packet_to_packet_list(fdata, cf, dfcode,
1232 filtering_tap_listeners, tap_flags,
1233 pseudo_header, buf, TRUE, TRUE);
1236 /* We didn't pass read filter so roll back count */
1239 /* XXX - if we didn't have read filters, or if we could avoid
1240 allocating the "frame_data" structure until we knew whether
1241 the frame passed the read filter, we could use a G_ALLOC_ONLY
1244 ...but, at least in one test I did, where I just made the chunk
1245 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1246 seem to save a noticeable amount of time or space. */
1247 #if GLIB_CHECK_VERSION(2,10,0)
1248 /* memory chunks have been deprecated in favor of the slice allocator,
1249 * which has been added in 2.10
1251 g_slice_free(frame_data,fdata);
1253 g_mem_chunk_free(cf->plist_chunk, fdata);
1261 cf_merge_files(char **out_filenamep, int in_file_count,
1262 char *const *in_filenames, int file_type, gboolean do_append)
1264 merge_in_file_t *in_files;
1270 int open_err, read_err, write_err, close_err;
1274 char errmsg_errno[1024+1];
1276 gboolean got_read_error = FALSE, got_write_error = FALSE;
1278 progdlg_t *progbar = NULL;
1280 gint64 f_len, file_pos;
1282 GTimeVal start_time;
1283 gchar status_str[100];
1284 gint64 progbar_nextstep;
1285 gint64 progbar_quantum;
1287 /* open the input files */
1288 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1289 &open_err, &err_info, &err_fileno)) {
1291 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1296 if (*out_filenamep != NULL) {
1297 out_filename = *out_filenamep;
1298 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1302 out_fd = create_tempfile(&tmpname, "wireshark");
1305 out_filename = g_strdup(tmpname);
1306 *out_filenamep = out_filename;
1310 merge_close_in_files(in_file_count, in_files);
1312 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1316 pdh = wtap_dump_fdopen(out_fd, file_type,
1317 merge_select_frame_type(in_file_count, in_files),
1318 merge_max_snapshot_length(in_file_count, in_files),
1319 FALSE /* compressed */, &open_err);
1322 merge_close_in_files(in_file_count, in_files);
1324 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1329 /* Get the sum of the sizes of all the files. */
1331 for (i = 0; i < in_file_count; i++)
1332 f_len += in_files[i].size;
1334 /* Update the progress bar when it gets to this value. */
1335 progbar_nextstep = 0;
1336 /* When we reach the value that triggers a progress bar update,
1337 bump that value by this amount. */
1338 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1339 /* Progress so far. */
1343 g_get_current_time(&start_time);
1345 /* do the merge (or append) */
1348 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1351 wth = merge_read_packet(in_file_count, in_files, &read_err,
1355 got_read_error = TRUE;
1359 /* Get the sum of the data offsets in all of the files. */
1361 for (i = 0; i < in_file_count; i++)
1362 data_offset += in_files[i].data_offset;
1364 /* Create the progress bar if necessary.
1365 We check on every iteration of the loop, so that it takes no
1366 longer than the standard time to create it (otherwise, for a
1367 large file, we might take considerably longer than that standard
1368 time in order to get to the next progress bar step). */
1369 if (progbar == NULL) {
1370 progbar = delayed_create_progress_dlg("Merging", "files",
1371 FALSE, &stop_flag, &start_time, progbar_val);
1374 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1375 when we update it, we have to run the GTK+ main loop to get it
1376 to repaint what's pending, and doing so may involve an "ioctl()"
1377 to see if there's any pending input from an X server, and doing
1378 that for every packet can be costly, especially on a big file. */
1379 if (data_offset >= progbar_nextstep) {
1380 /* Get the sum of the seek positions in all of the files. */
1382 for (i = 0; i < in_file_count; i++)
1383 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1384 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1385 if (progbar_val > 1.0f) {
1386 /* Some file probably grew while we were reading it.
1387 That "shouldn't happen", so we'll just clip the progress
1391 if (progbar != NULL) {
1392 g_snprintf(status_str, sizeof(status_str),
1393 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1394 file_pos / 1024, f_len / 1024);
1395 update_progress_dlg(progbar, progbar_val, status_str);
1397 progbar_nextstep += progbar_quantum;
1401 /* Well, the user decided to abort the merge. */
1405 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1406 wtap_buf_ptr(wth), &write_err)) {
1407 got_write_error = TRUE;
1412 /* We're done merging the files; destroy the progress bar if it was created. */
1413 if (progbar != NULL)
1414 destroy_progress_dlg(progbar);
1416 merge_close_in_files(in_file_count, in_files);
1417 if (!got_read_error && !got_write_error) {
1418 if (!wtap_dump_close(pdh, &write_err))
1419 got_write_error = TRUE;
1421 wtap_dump_close(pdh, &close_err);
1423 if (got_read_error) {
1425 * Find the file on which we got the error, and report the error.
1427 for (i = 0; i < in_file_count; i++) {
1428 if (in_files[i].state == GOT_ERROR) {
1429 /* Put up a message box noting that a read failed somewhere along
1433 case WTAP_ERR_UNSUPPORTED_ENCAP:
1434 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1435 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1438 errmsg = errmsg_errno;
1441 case WTAP_ERR_CANT_READ:
1442 errmsg = "An attempt to read from the capture file %s failed for"
1443 " some unknown reason.";
1446 case WTAP_ERR_SHORT_READ:
1447 errmsg = "The capture file %s appears to have been cut short"
1448 " in the middle of a packet.";
1451 case WTAP_ERR_BAD_RECORD:
1452 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1453 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1456 errmsg = errmsg_errno;
1459 case WTAP_ERR_DECOMPRESS:
1460 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1461 "The compressed capture file %%s appears to be damaged or corrupt.\n"
1464 errmsg = errmsg_errno;
1468 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1469 "An error occurred while reading the"
1470 " capture file %%s: %s.", wtap_strerror(read_err));
1471 errmsg = errmsg_errno;
1474 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1479 if (got_write_error) {
1480 /* Put up an alert box for the write error. */
1481 cf_write_failure_alert_box(out_filename, write_err);
1484 if (got_read_error || got_write_error || stop_flag) {
1485 /* Callers aren't expected to treat an error or an explicit abort
1486 differently - we put up error dialogs ourselves, so they don't
1494 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1496 const char *filter_new = dftext ? dftext : "";
1497 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1499 GTimeVal start_time;
1501 /* if new filter equals old one, do nothing unless told to do so */
1502 if (!force && strcmp(filter_new, filter_old) == 0) {
1508 if (dftext == NULL) {
1509 /* The new filter is an empty filter (i.e., display all packets).
1510 * so leave dfcode==NULL
1514 * We have a filter; make a copy of it (as we'll be saving it),
1515 * and try to compile it.
1517 dftext = g_strdup(dftext);
1518 if (!dfilter_compile(dftext, &dfcode)) {
1519 /* The attempt failed; report an error. */
1520 gchar *safe_dftext = simple_dialog_format_message(dftext);
1521 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1523 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1526 "The following display filter isn't a valid display filter:\n%s\n"
1527 "See the help for a description of the display filter syntax.",
1528 simple_dialog_primary_start(), safe_dfilter_error_msg,
1529 simple_dialog_primary_end(), safe_dftext);
1530 g_free(safe_dfilter_error_msg);
1531 g_free(safe_dftext);
1537 if (dfcode == NULL) {
1538 /* Yes - free the filter text, and set it to null. */
1544 /* We have a valid filter. Replace the current filter. */
1545 g_free(cf->dfilter);
1546 cf->dfilter = dftext;
1547 g_get_current_time(&start_time);
1550 /* Now rescan the packet list, applying the new filter, but not
1551 throwing away information constructed on a previous pass. */
1552 if (dftext == NULL) {
1553 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1555 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1558 /* Cleanup and release all dfilter resources */
1559 dfilter_free(dfcode);
1565 cf_reftime_packets(capture_file *cf)
1568 ref_time_packets(cf);
1572 cf_redissect_packets(capture_file *cf)
1574 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1578 cf_read_frame_r(capture_file *cf, frame_data *fdata,
1579 union wtap_pseudo_header *pseudo_header, guint8 *pd)
1583 char errmsg_errno[1024+1];
1585 if (!wtap_seek_read(cf->wth, fdata->file_off, pseudo_header, pd,
1586 fdata->cap_len, &err, &err_info)) {
1589 case WTAP_ERR_UNSUPPORTED_ENCAP:
1590 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1591 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1596 case WTAP_ERR_BAD_RECORD:
1597 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1598 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
1599 wtap_strerror(err), err_info);
1604 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1605 "An error occurred while reading from the file \"%%s\": %s.",
1606 wtap_strerror(err));
1609 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg_errno, cf->filename);
1616 cf_read_frame(capture_file *cf, frame_data *fdata)
1618 return cf_read_frame_r(cf, fdata, &cf->pseudo_header, cf->pd);
1621 /* Rescan the list of packets, reconstructing the CList.
1623 "action" describes why we're doing this; it's used in the progress
1626 "action_item" describes what we're doing; it's used in the progress
1629 "refilter" is TRUE if we need to re-evaluate the filter expression.
1631 "redissect" is TRUE if we need to make the dissectors reconstruct
1632 any state information they have (because a preference that affects
1633 some dissector has changed, meaning some dissector might construct
1634 its state differently from the way it was constructed the last time). */
1636 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1637 gboolean refilter, gboolean redissect)
1639 /* Rescan packets new packet list */
1641 progdlg_t *progbar = NULL;
1644 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1645 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1646 gboolean selected_frame_seen;
1648 GTimeVal start_time;
1649 gchar status_str[100];
1650 int progbar_nextstep;
1651 int progbar_quantum;
1653 gboolean filtering_tap_listeners;
1655 gboolean add_to_packet_list = FALSE;
1658 /* Compile the current display filter.
1659 * We assume this will not fail since cf->dfilter is only set in
1660 * cf_filter IFF the filter was valid.
1662 compiled = dfilter_compile(cf->dfilter, &dfcode);
1663 g_assert(!cf->dfilter || (compiled && dfcode));
1665 /* Do we have any tap listeners with filters? */
1666 filtering_tap_listeners = have_filtering_tap_listeners();
1668 /* Get the union of the flags for all tap listeners. */
1669 tap_flags = union_of_tap_listener_flags();
1671 reset_tap_listeners();
1672 /* Which frame, if any, is the currently selected frame?
1673 XXX - should the selected frame or the focus frame be the "current"
1674 frame, that frame being the one from which "Find Frame" searches
1676 selected_frame = cf->current_frame;
1678 /* Mark frame num as not found */
1679 selected_frame_num = -1;
1681 /* Freeze the packet list while we redo it, so we don't get any
1682 screen updates while it happens. */
1683 new_packet_list_freeze();
1686 /* We need to re-initialize all the state information that protocols
1687 keep, because some preference that controls a dissector has changed,
1688 which might cause the state information to be constructed differently
1689 by that dissector. */
1691 /* We might receive new packets while redissecting, and we don't
1692 want to dissect those before their time. */
1693 cf->redissecting = TRUE;
1695 /* Cleanup all data structures used for dissection. */
1696 cleanup_dissection();
1697 /* Initialize all data structures used for dissection. */
1700 /* We need to redissect the packets so we have to discard our old
1701 * packet list store. */
1702 new_packet_list_clear();
1703 add_to_packet_list = TRUE;
1706 /* We don't yet know which will be the first and last frames displayed. */
1707 cf->first_displayed = NULL;
1708 cf->last_displayed = NULL;
1710 /* We currently don't display any packets */
1711 cf->displayed_count = 0;
1713 /* Iterate through the list of frames. Call a routine for each frame
1714 to check whether it should be displayed and, if so, add it to
1715 the display list. */
1716 nstime_set_unset(&first_ts);
1717 nstime_set_unset(&prev_dis_ts);
1718 nstime_set_unset(&prev_cap_ts);
1721 /* Update the progress bar when it gets to this value. */
1722 progbar_nextstep = 0;
1723 /* When we reach the value that triggers a progress bar update,
1724 bump that value by this amount. */
1725 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1726 /* Count of packets at which we've looked. */
1728 /* Progress so far. */
1732 g_get_current_time(&start_time);
1734 /* no previous row yet */
1735 prev_frame_num = -1;
1738 preceding_frame_num = -1;
1739 preceding_frame = NULL;
1740 following_frame_num = -1;
1741 following_frame = NULL;
1743 selected_frame_seen = FALSE;
1745 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1746 /* Create the progress bar if necessary.
1747 We check on every iteration of the loop, so that it takes no
1748 longer than the standard time to create it (otherwise, for a
1749 large file, we might take considerably longer than that standard
1750 time in order to get to the next progress bar step). */
1751 if (progbar == NULL)
1752 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1753 &stop_flag, &start_time,
1756 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1757 when we update it, we have to run the GTK+ main loop to get it
1758 to repaint what's pending, and doing so may involve an "ioctl()"
1759 to see if there's any pending input from an X server, and doing
1760 that for every packet can be costly, especially on a big file. */
1761 if (count >= progbar_nextstep) {
1762 /* let's not divide by zero. I should never be started
1763 * with count == 0, so let's assert that
1765 g_assert(cf->count > 0);
1766 progbar_val = (gfloat) count / cf->count;
1768 if (progbar != NULL) {
1769 g_snprintf(status_str, sizeof(status_str),
1770 "%4u of %u frames", count, cf->count);
1771 update_progress_dlg(progbar, progbar_val, status_str);
1774 progbar_nextstep += progbar_quantum;
1778 /* Well, the user decided to abort the filtering. Just stop.
1780 XXX - go back to the previous filter? Users probably just
1781 want not to wait for a filtering operation to finish;
1782 unless we cancel by having no filter, reverting to the
1783 previous filter will probably be even more expensive than
1784 continuing the filtering, as it involves going back to the
1785 beginning and filtering, and even with no filter we currently
1786 have to re-generate the entire clist, which is also expensive.
1788 I'm not sure what Network Monitor does, but it doesn't appear
1789 to give you an unfiltered display if you cancel. */
1796 /* Since all state for the frame was destroyed, mark the frame
1797 * as not visited, free the GSList referring to the state
1798 * data (the per-frame data itself was freed by
1799 * "init_dissection()"), and null out the GSList pointer. */
1800 fdata->flags.visited = 0;
1801 frame_data_cleanup(fdata);
1803 /* cleanup_dissection() calls se_free_all();
1804 * And after that fdata->col_text (which is allocated using se_alloc0())
1805 * no longer points to valid memory.
1807 init_col_text(fdata, cf->cinfo.num_cols);
1810 if (!cf_read_frame(cf, fdata))
1811 break; /* error reading the frame */
1813 /* If the previous frame is displayed, and we haven't yet seen the
1814 selected frame, remember that frame - it's the closest one we've
1815 yet seen before the selected frame. */
1816 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1817 preceding_frame_num = prev_frame_num;
1818 preceding_frame = prev_frame;
1820 add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1821 tap_flags, &cf->pseudo_header, cf->pd,
1823 add_to_packet_list);
1825 /* If this frame is displayed, and this is the first frame we've
1826 seen displayed after the selected frame, remember this frame -
1827 it's the closest one we've yet seen at or after the selected
1829 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1830 following_frame_num = fdata->num;
1831 following_frame = fdata;
1833 if (fdata == selected_frame) {
1834 selected_frame_seen = TRUE;
1835 if (fdata->flags.passed_dfilter)
1836 selected_frame_num = fdata->num;
1839 /* Remember this frame - it'll be the previous frame
1840 on the next pass through the loop. */
1841 prev_frame_num = fdata->num;
1845 /* We are done redissecting the packet list. */
1846 cf->redissecting = FALSE;
1849 /* Clear out what remains of the visited flags and per-frame data
1852 XXX - that may cause various forms of bogosity when dissecting
1853 these frames, as they won't have been seen by this sequential
1854 pass, but the only alternative I see is to keep scanning them
1855 even though the user requested that the scan stop, and that
1856 would leave the user stuck with an Wireshark grinding on
1857 until it finishes. Should we just stick them with that? */
1858 for (; fdata != NULL; fdata = fdata->next) {
1859 fdata->flags.visited = 0;
1860 frame_data_cleanup(fdata);
1864 /* We're done filtering the packets; destroy the progress bar if it
1866 if (progbar != NULL)
1867 destroy_progress_dlg(progbar);
1869 /* Unfreeze the packet list. */
1870 if (!add_to_packet_list)
1871 new_packet_list_recreate_visible_rows();
1873 /* Compute the time it took to filter the file */
1874 compute_elapsed(&start_time);
1876 new_packet_list_thaw();
1878 if (selected_frame_num == -1) {
1879 /* The selected frame didn't pass the filter. */
1880 if (selected_frame == NULL) {
1881 /* That's because there *was* no selected frame. Make the first
1882 displayed frame the current frame. */
1883 selected_frame_num = 0;
1885 /* Find the nearest displayed frame to the selected frame (whether
1886 it's before or after that frame) and make that the current frame.
1887 If the next and previous displayed frames are equidistant from the
1888 selected frame, choose the next one. */
1889 g_assert(following_frame == NULL ||
1890 following_frame->num >= selected_frame->num);
1891 g_assert(preceding_frame == NULL ||
1892 preceding_frame->num <= selected_frame->num);
1893 if (following_frame == NULL) {
1894 /* No frame after the selected frame passed the filter, so we
1895 have to select the last displayed frame before the selected
1897 selected_frame_num = preceding_frame_num;
1898 selected_frame = preceding_frame;
1899 } else if (preceding_frame == NULL) {
1900 /* No frame before the selected frame passed the filter, so we
1901 have to select the first displayed frame after the selected
1903 selected_frame_num = following_frame_num;
1904 selected_frame = following_frame;
1906 /* Frames before and after the selected frame passed the filter, so
1907 we'll select the previous frame */
1908 selected_frame_num = preceding_frame_num;
1909 selected_frame = preceding_frame;
1914 if (selected_frame_num == -1) {
1915 /* There are no frames displayed at all. */
1916 cf_unselect_packet(cf);
1918 /* Either the frame that was selected passed the filter, or we've
1919 found the nearest displayed frame to that frame. Select it, make
1920 it the focus row, and make it visible. */
1921 /* Set to invalid to force update of packet list and packet details */
1922 cf->current_row = -1;
1923 if (selected_frame_num == 0) {
1924 new_packet_list_select_first_row();
1926 if (!new_packet_list_select_row_from_data(selected_frame)) {
1927 /* We didn't find a row corresponding to this frame.
1928 This means that the frame isn't being displayed currently,
1929 so we can't select it. */
1930 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
1931 "%sEnd of capture exceeded!%s\n\n"
1932 "The capture file is probably not fully dissected.",
1933 simple_dialog_primary_start(), simple_dialog_primary_end());
1938 /* Cleanup and release all dfilter resources */
1939 dfilter_free(dfcode);
1944 * Scan trough all frame data and recalculate the ref time
1945 * without rereading the file.
1946 * XXX - do we need a progres bar or is this fast enough?
1949 ref_time_packets(capture_file *cf)
1953 nstime_set_unset(&first_ts);
1954 nstime_set_unset(&prev_dis_ts);
1957 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
1958 /* just add some value here until we know if it is being displayed or not */
1959 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1965 /* If we don't have the time stamp of the first packet in the
1966 capture, it's because this is the first packet. Save the time
1967 stamp of this packet as the time stamp of the first packet. */
1968 if (nstime_is_unset(&first_ts)) {
1969 first_ts = fdata->abs_ts;
1971 /* if this frames is marked as a reference time frame, reset
1972 firstsec and firstusec to this frame */
1973 if(fdata->flags.ref_time){
1974 first_ts = fdata->abs_ts;
1977 /* If we don't have the time stamp of the previous displayed packet,
1978 it's because this is the first displayed packet. Save the time
1979 stamp of this packet as the time stamp of the previous displayed
1981 if (nstime_is_unset(&prev_dis_ts)) {
1982 prev_dis_ts = fdata->abs_ts;
1985 /* Get the time elapsed between the first packet and this packet. */
1986 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1988 /* If it's greater than the current elapsed time, set the elapsed time
1989 to it (we check for "greater than" so as not to be confused by
1990 time moving backwards). */
1991 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1992 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1993 cf->elapsed_time = fdata->rel_ts;
1996 /* Get the time elapsed between the previous displayed packet and
1998 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2000 prev_dis_ts = fdata->abs_ts;
2005 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2006 /* This frame either passed the display filter list or is marked as
2007 a time reference frame. All time reference frames are displayed
2008 even if they dont pass the display filter */
2009 if(fdata->flags.ref_time){
2010 /* if this was a TIME REF frame we should reset the cum_bytes field */
2011 cum_bytes = fdata->pkt_len;
2012 fdata->cum_bytes = cum_bytes;
2014 /* increase cum_bytes with this packets length */
2015 cum_bytes += fdata->pkt_len;
2028 process_specified_packets(capture_file *cf, packet_range_t *range,
2029 const char *string1, const char *string2, gboolean terminate_is_stop,
2030 gboolean (*callback)(capture_file *, frame_data *,
2031 union wtap_pseudo_header *, const guint8 *, void *),
2032 void *callback_args)
2035 union wtap_pseudo_header pseudo_header;
2036 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2037 psp_return_t ret = PSP_FINISHED;
2039 progdlg_t *progbar = NULL;
2042 gboolean progbar_stop_flag;
2043 GTimeVal progbar_start_time;
2044 gchar progbar_status_str[100];
2045 int progbar_nextstep;
2046 int progbar_quantum;
2047 range_process_e process_this;
2049 /* Update the progress bar when it gets to this value. */
2050 progbar_nextstep = 0;
2051 /* When we reach the value that triggers a progress bar update,
2052 bump that value by this amount. */
2053 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2054 /* Count of packets at which we've looked. */
2056 /* Progress so far. */
2059 progbar_stop_flag = FALSE;
2060 g_get_current_time(&progbar_start_time);
2062 packet_range_process_init(range);
2064 /* Iterate through the list of packets, printing the packets that
2065 were selected by the current display filter. */
2066 for (fdata = cf->plist_start; fdata != NULL; fdata = fdata->next) {
2067 /* Create the progress bar if necessary.
2068 We check on every iteration of the loop, so that it takes no
2069 longer than the standard time to create it (otherwise, for a
2070 large file, we might take considerably longer than that standard
2071 time in order to get to the next progress bar step). */
2072 if (progbar == NULL)
2073 progbar = delayed_create_progress_dlg(string1, string2,
2076 &progbar_start_time,
2079 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2080 when we update it, we have to run the GTK+ main loop to get it
2081 to repaint what's pending, and doing so may involve an "ioctl()"
2082 to see if there's any pending input from an X server, and doing
2083 that for every packet can be costly, especially on a big file. */
2084 if (progbar_count >= progbar_nextstep) {
2085 /* let's not divide by zero. I should never be started
2086 * with count == 0, so let's assert that
2088 g_assert(cf->count > 0);
2089 progbar_val = (gfloat) progbar_count / cf->count;
2091 if (progbar != NULL) {
2092 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2093 "%4u of %u packets", progbar_count, cf->count);
2094 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2097 progbar_nextstep += progbar_quantum;
2100 if (progbar_stop_flag) {
2101 /* Well, the user decided to abort the operation. Just stop,
2102 and arrange to return PSP_STOPPED to our caller, so they know
2103 it was stopped explicitly. */
2110 /* do we have to process this packet? */
2111 process_this = packet_range_process_packet(range, fdata);
2112 if (process_this == range_process_next) {
2113 /* this packet uninteresting, continue with next one */
2115 } else if (process_this == range_processing_finished) {
2116 /* all interesting packets processed, stop the loop */
2120 /* Get the packet */
2121 if (!cf_read_frame_r(cf, fdata, &pseudo_header, pd)) {
2122 /* Attempt to get the packet failed. */
2126 /* Process the packet */
2127 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2128 /* Callback failed. We assume it reported the error appropriately. */
2134 /* We're done printing the packets; destroy the progress bar if
2136 if (progbar != NULL)
2137 destroy_progress_dlg(progbar);
2143 gboolean construct_protocol_tree;
2145 } retap_callback_args_t;
2148 retap_packet(capture_file *cf _U_, frame_data *fdata,
2149 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2152 retap_callback_args_t *args = argsp;
2155 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2156 tap_queue_init(&edt);
2157 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2158 tap_push_tapped_queue(&edt);
2159 epan_dissect_cleanup(&edt);
2165 cf_retap_packets(capture_file *cf)
2167 packet_range_t range;
2168 retap_callback_args_t callback_args;
2169 gboolean filtering_tap_listeners;
2172 /* Do we have any tap listeners with filters? */
2173 filtering_tap_listeners = have_filtering_tap_listeners();
2175 tap_flags = union_of_tap_listener_flags();
2177 /* If any tap listeners have filters, or require the protocol tree,
2178 construct the protocol tree. */
2179 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2180 (tap_flags & TL_REQUIRES_PROTO_TREE);
2182 /* If any tap listeners require the columns, construct them. */
2183 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2185 /* Reset the tap listeners. */
2186 reset_tap_listeners();
2188 /* Iterate through the list of packets, dissecting all packets and
2189 re-running the taps. */
2190 packet_range_init(&range);
2191 packet_range_process_init(&range);
2192 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2193 "all packets", TRUE, retap_packet,
2196 /* Completed successfully. */
2200 /* Well, the user decided to abort the refiltering.
2201 Return CF_READ_ABORTED so our caller knows they did that. */
2202 return CF_READ_ABORTED;
2205 /* Error while retapping. */
2206 return CF_READ_ERROR;
2209 g_assert_not_reached();
2214 print_args_t *print_args;
2215 gboolean print_header_line;
2216 char *header_line_buf;
2217 int header_line_buf_len;
2218 gboolean print_formfeed;
2219 gboolean print_separator;
2223 } print_callback_args_t;
2226 print_packet(capture_file *cf, frame_data *fdata,
2227 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2230 print_callback_args_t *args = argsp;
2237 gboolean proto_tree_needed;
2238 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2239 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2241 /* Create the protocol tree, and make it visible, if we're printing
2242 the dissection or the hex data.
2243 XXX - do we need it if we're just printing the hex data? */
2245 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2246 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2248 /* Fill in the column information if we're printing the summary
2250 if (args->print_args->print_summary) {
2251 col_custom_prime_edt(&edt, &cf->cinfo);
2252 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2253 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2255 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2257 if (args->print_formfeed) {
2258 if (!new_page(args->print_args->stream))
2261 if (args->print_separator) {
2262 if (!print_line(args->print_args->stream, 0, ""))
2268 * We generate bookmarks, if the output format supports them.
2269 * The name is "__frameN__".
2271 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2273 if (args->print_args->print_summary) {
2274 if (args->print_header_line) {
2275 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2277 args->print_header_line = FALSE; /* we might not need to print any more */
2279 cp = &args->line_buf[0];
2281 for (i = 0; i < cf->cinfo.num_cols; i++) {
2282 /* Find the length of the string for this column. */
2283 column_len = (int) strlen(cf->cinfo.col_data[i]);
2284 if (args->col_widths[i] > column_len)
2285 column_len = args->col_widths[i];
2287 /* Make sure there's room in the line buffer for the column; if not,
2288 double its length. */
2289 line_len += column_len + 1; /* "+1" for space */
2290 if (line_len > args->line_buf_len) {
2291 cp_off = (int) (cp - args->line_buf);
2292 args->line_buf_len = 2 * line_len;
2293 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2294 cp = args->line_buf + cp_off;
2297 /* Right-justify the packet number column. */
2298 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2299 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2301 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2303 if (i != cf->cinfo.num_cols - 1)
2309 * Generate a bookmark, using the summary line as the title.
2311 if (!print_bookmark(args->print_args->stream, bookmark_name,
2315 if (!print_line(args->print_args->stream, 0, args->line_buf))
2319 * Generate a bookmark, using "Frame N" as the title, as we're not
2320 * printing the summary line.
2322 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2323 if (!print_bookmark(args->print_args->stream, bookmark_name,
2326 } /* if (print_summary) */
2328 if (args->print_args->print_dissections != print_dissections_none) {
2329 if (args->print_args->print_summary) {
2330 /* Separate the summary line from the tree with a blank line. */
2331 if (!print_line(args->print_args->stream, 0, ""))
2335 /* Print the information in that tree. */
2336 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2339 /* Print a blank line if we print anything after this (aka more than one packet). */
2340 args->print_separator = TRUE;
2342 /* Print a header line if we print any more packet summaries */
2343 args->print_header_line = TRUE;
2346 if (args->print_args->print_hex) {
2347 /* Print the full packet data as hex. */
2348 if (!print_hex_data(args->print_args->stream, &edt))
2351 /* Print a blank line if we print anything after this (aka more than one packet). */
2352 args->print_separator = TRUE;
2354 /* Print a header line if we print any more packet summaries */
2355 args->print_header_line = TRUE;
2356 } /* if (args->print_args->print_dissections != print_dissections_none) */
2358 epan_dissect_cleanup(&edt);
2360 /* do we want to have a formfeed between each packet from now on? */
2361 if(args->print_args->print_formfeed) {
2362 args->print_formfeed = TRUE;
2368 epan_dissect_cleanup(&edt);
2373 cf_print_packets(capture_file *cf, print_args_t *print_args)
2376 print_callback_args_t callback_args;
2384 callback_args.print_args = print_args;
2385 callback_args.print_header_line = TRUE;
2386 callback_args.header_line_buf = NULL;
2387 callback_args.header_line_buf_len = 256;
2388 callback_args.print_formfeed = FALSE;
2389 callback_args.print_separator = FALSE;
2390 callback_args.line_buf = NULL;
2391 callback_args.line_buf_len = 256;
2392 callback_args.col_widths = NULL;
2394 if (!print_preamble(print_args->stream, cf->filename)) {
2395 destroy_print_stream(print_args->stream);
2396 return CF_PRINT_WRITE_ERROR;
2399 if (print_args->print_summary) {
2400 /* We're printing packet summaries. Allocate the header line buffer
2401 and get the column widths. */
2402 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2404 /* Find the widths for each of the columns - maximum of the
2405 width of the title and the width of the data - and construct
2406 a buffer with a line containing the column titles. */
2407 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2408 cp = &callback_args.header_line_buf[0];
2410 for (i = 0; i < cf->cinfo.num_cols; i++) {
2411 /* Don't pad the last column. */
2412 if (i == cf->cinfo.num_cols - 1)
2413 callback_args.col_widths[i] = 0;
2415 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2416 data_width = get_column_char_width(get_column_format(i));
2417 if (data_width > callback_args.col_widths[i])
2418 callback_args.col_widths[i] = data_width;
2421 /* Find the length of the string for this column. */
2422 column_len = (int) strlen(cf->cinfo.col_title[i]);
2423 if (callback_args.col_widths[i] > column_len)
2424 column_len = callback_args.col_widths[i];
2426 /* Make sure there's room in the line buffer for the column; if not,
2427 double its length. */
2428 line_len += column_len + 1; /* "+1" for space */
2429 if (line_len > callback_args.header_line_buf_len) {
2430 cp_off = (int) (cp - callback_args.header_line_buf);
2431 callback_args.header_line_buf_len = 2 * line_len;
2432 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2433 callback_args.header_line_buf_len + 1);
2434 cp = callback_args.header_line_buf + cp_off;
2437 /* Right-justify the packet number column. */
2438 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2439 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2441 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2443 if (i != cf->cinfo.num_cols - 1)
2448 /* Now start out the main line buffer with the same length as the
2449 header line buffer. */
2450 callback_args.line_buf_len = callback_args.header_line_buf_len;
2451 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2452 } /* if (print_summary) */
2454 /* Iterate through the list of packets, printing the packets we were
2456 ret = process_specified_packets(cf, &print_args->range, "Printing",
2457 "selected packets", TRUE, print_packet,
2460 g_free(callback_args.header_line_buf);
2461 g_free(callback_args.line_buf);
2462 g_free(callback_args.col_widths);
2467 /* Completed successfully. */
2471 /* Well, the user decided to abort the printing.
2473 XXX - note that what got generated before they did that
2474 will get printed if we're piping to a print program; we'd
2475 have to write to a file and then hand that to the print
2476 program to make it actually not print anything. */
2480 /* Error while printing.
2482 XXX - note that what got generated before they did that
2483 will get printed if we're piping to a print program; we'd
2484 have to write to a file and then hand that to the print
2485 program to make it actually not print anything. */
2486 destroy_print_stream(print_args->stream);
2487 return CF_PRINT_WRITE_ERROR;
2490 if (!print_finale(print_args->stream)) {
2491 destroy_print_stream(print_args->stream);
2492 return CF_PRINT_WRITE_ERROR;
2495 if (!destroy_print_stream(print_args->stream))
2496 return CF_PRINT_WRITE_ERROR;
2502 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2503 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2509 /* Create the protocol tree, but don't fill in the column information. */
2510 epan_dissect_init(&edt, TRUE, TRUE);
2511 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2513 /* Write out the information in that tree. */
2514 proto_tree_write_pdml(&edt, fh);
2516 epan_dissect_cleanup(&edt);
2522 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2527 fh = ws_fopen(print_args->file, "w");
2529 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2531 write_pdml_preamble(fh);
2534 return CF_PRINT_WRITE_ERROR;
2537 /* Iterate through the list of packets, printing the packets we were
2539 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2540 "selected packets", TRUE,
2541 write_pdml_packet, fh);
2546 /* Completed successfully. */
2550 /* Well, the user decided to abort the printing. */
2554 /* Error while printing. */
2556 return CF_PRINT_WRITE_ERROR;
2559 write_pdml_finale(fh);
2562 return CF_PRINT_WRITE_ERROR;
2565 /* XXX - check for an error */
2572 write_psml_packet(capture_file *cf, frame_data *fdata,
2573 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2578 gboolean proto_tree_needed;
2580 /* Fill in the column information, only create the protocol tree
2581 if having custom columns. */
2582 proto_tree_needed = have_custom_cols(&cf->cinfo);
2583 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2584 col_custom_prime_edt(&edt, &cf->cinfo);
2585 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2586 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2588 /* Write out the information in that tree. */
2589 proto_tree_write_psml(&edt, fh);
2591 epan_dissect_cleanup(&edt);
2597 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2602 fh = ws_fopen(print_args->file, "w");
2604 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2606 write_psml_preamble(fh);
2609 return CF_PRINT_WRITE_ERROR;
2612 /* Iterate through the list of packets, printing the packets we were
2614 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2615 "selected packets", TRUE,
2616 write_psml_packet, fh);
2621 /* Completed successfully. */
2625 /* Well, the user decided to abort the printing. */
2629 /* Error while printing. */
2631 return CF_PRINT_WRITE_ERROR;
2634 write_psml_finale(fh);
2637 return CF_PRINT_WRITE_ERROR;
2640 /* XXX - check for an error */
2647 write_csv_packet(capture_file *cf, frame_data *fdata,
2648 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2653 gboolean proto_tree_needed;
2655 /* Fill in the column information, only create the protocol tree
2656 if having custom columns. */
2657 proto_tree_needed = have_custom_cols(&cf->cinfo);
2658 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2659 col_custom_prime_edt(&edt, &cf->cinfo);
2660 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2661 epan_dissect_fill_in_columns(&edt, FALSE, TRUE);
2663 /* Write out the information in that tree. */
2664 proto_tree_write_csv(&edt, fh);
2666 epan_dissect_cleanup(&edt);
2672 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2677 fh = ws_fopen(print_args->file, "w");
2679 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2681 write_csv_preamble(fh);
2684 return CF_PRINT_WRITE_ERROR;
2687 /* Iterate through the list of packets, printing the packets we were
2689 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2690 "selected packets", TRUE,
2691 write_csv_packet, fh);
2696 /* Completed successfully. */
2700 /* Well, the user decided to abort the printing. */
2704 /* Error while printing. */
2706 return CF_PRINT_WRITE_ERROR;
2709 write_csv_finale(fh);
2712 return CF_PRINT_WRITE_ERROR;
2715 /* XXX - check for an error */
2722 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2723 union wtap_pseudo_header *pseudo_header _U_,
2724 const guint8 *pd, void *argsp)
2728 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
2733 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2738 fh = ws_fopen(print_args->file, "w");
2741 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2743 write_carrays_preamble(fh);
2747 return CF_PRINT_WRITE_ERROR;
2750 /* Iterate through the list of packets, printing the packets we were
2752 ret = process_specified_packets(cf, &print_args->range,
2754 "selected packets", TRUE,
2755 write_carrays_packet, fh);
2758 /* Completed successfully. */
2761 /* Well, the user decided to abort the printing. */
2764 /* Error while printing. */
2766 return CF_PRINT_WRITE_ERROR;
2769 write_carrays_finale(fh);
2773 return CF_PRINT_WRITE_ERROR;
2781 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2782 search_direction dir)
2786 mdata.string = string;
2787 mdata.string_len = strlen(string);
2788 return find_packet(cf, match_protocol_tree, &mdata, dir);
2792 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2794 mdata->frame_matched = FALSE;
2795 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2796 mdata->string_len = strlen(mdata->string);
2798 /* Iterate through all the nodes looking for matching text */
2799 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2800 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2804 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2806 match_data *mdata = criterion;
2809 /* Load the frame's data. */
2810 if (!cf_read_frame(cf, fdata)) {
2811 /* Attempt to get the packet failed. */
2815 /* Construct the protocol tree, including the displayed text */
2816 epan_dissect_init(&edt, TRUE, TRUE);
2817 /* We don't need the column information */
2818 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2820 /* Iterate through all the nodes, seeing if they have text that matches. */
2822 mdata->frame_matched = FALSE;
2823 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2824 epan_dissect_cleanup(&edt);
2825 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2829 match_subtree_text(proto_node *node, gpointer data)
2831 match_data *mdata = (match_data*) data;
2832 const gchar *string = mdata->string;
2833 size_t string_len = mdata->string_len;
2834 capture_file *cf = mdata->cf;
2835 field_info *fi = PNODE_FINFO(node);
2836 gchar label_str[ITEM_LABEL_LENGTH];
2843 g_assert(fi && "dissection with an invisible proto tree?");
2845 if (mdata->frame_matched) {
2846 /* We already had a match; don't bother doing any more work. */
2850 /* Don't match invisible entries. */
2851 if (PROTO_ITEM_IS_HIDDEN(node))
2854 /* was a free format label produced? */
2856 label_ptr = fi->rep->representation;
2858 /* no, make a generic label */
2859 label_ptr = label_str;
2860 proto_item_fill_label(fi, label_str);
2863 /* Does that label match? */
2864 label_len = strlen(label_ptr);
2865 for (i = 0; i < label_len; i++) {
2866 c_char = label_ptr[i];
2868 c_char = toupper(c_char);
2869 if (c_char == string[c_match]) {
2871 if (c_match == string_len) {
2872 /* No need to look further; we have a match */
2873 mdata->frame_matched = TRUE;
2881 /* Recurse into the subtree, if it exists */
2882 if (node->first_child != NULL)
2883 proto_tree_children_foreach(node, match_subtree_text, mdata);
2887 cf_find_packet_summary_line(capture_file *cf, const char *string,
2888 search_direction dir)
2892 mdata.string = string;
2893 mdata.string_len = strlen(string);
2894 return find_packet(cf, match_summary_line, &mdata, dir);
2898 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2900 match_data *mdata = criterion;
2901 const gchar *string = mdata->string;
2902 size_t string_len = mdata->string_len;
2904 const char *info_column;
2905 size_t info_column_len;
2906 match_result result = MR_NOTMATCHED;
2912 /* Load the frame's data. */
2913 if (!cf_read_frame(cf, fdata)) {
2914 /* Attempt to get the packet failed. */
2918 /* Don't bother constructing the protocol tree */
2919 epan_dissect_init(&edt, FALSE, FALSE);
2920 /* Get the column information */
2921 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2923 /* Find the Info column */
2924 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2925 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2926 /* Found it. See if we match. */
2927 info_column = edt.pi.cinfo->col_data[colx];
2928 info_column_len = strlen(info_column);
2929 for (i = 0; i < info_column_len; i++) {
2930 c_char = info_column[i];
2932 c_char = toupper(c_char);
2933 if (c_char == string[c_match]) {
2935 if (c_match == string_len) {
2936 result = MR_MATCHED;
2945 epan_dissect_cleanup(&edt);
2952 } cbs_t; /* "Counted byte string" */
2955 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
2956 search_direction dir)
2961 info.data_len = string_size;
2963 /* String or hex search? */
2965 /* String search - what type of string? */
2966 switch (cf->scs_type) {
2968 case SCS_ASCII_AND_UNICODE:
2969 return find_packet(cf, match_ascii_and_unicode, &info, dir);
2972 return find_packet(cf, match_ascii, &info, dir);
2975 return find_packet(cf, match_unicode, &info, dir);
2978 g_assert_not_reached();
2982 return find_packet(cf, match_binary, &info, dir);
2986 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2988 cbs_t *info = criterion;
2989 const guint8 *ascii_text = info->data;
2990 size_t textlen = info->data_len;
2991 match_result result;
2997 /* Load the frame's data. */
2998 if (!cf_read_frame(cf, fdata)) {
2999 /* Attempt to get the packet failed. */
3003 result = MR_NOTMATCHED;
3004 buf_len = fdata->pkt_len;
3005 for (i = 0; i < buf_len; i++) {
3008 c_char = toupper(c_char);
3010 if (c_char == ascii_text[c_match]) {
3012 if (c_match == textlen) {
3013 result = MR_MATCHED;
3014 cf->search_pos = i; /* Save the position of the last character
3015 for highlighting the field. */
3026 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3028 cbs_t *info = criterion;
3029 const guint8 *ascii_text = info->data;
3030 size_t textlen = info->data_len;
3031 match_result result;
3037 /* Load the frame's data. */
3038 if (!cf_read_frame(cf, fdata)) {
3039 /* Attempt to get the packet failed. */
3043 result = MR_NOTMATCHED;
3044 buf_len = fdata->pkt_len;
3045 for (i = 0; i < buf_len; i++) {
3048 c_char = toupper(c_char);
3049 if (c_char == ascii_text[c_match]) {
3051 if (c_match == textlen) {
3052 result = MR_MATCHED;
3053 cf->search_pos = i; /* Save the position of the last character
3054 for highlighting the field. */
3064 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3066 cbs_t *info = criterion;
3067 const guint8 *ascii_text = info->data;
3068 size_t textlen = info->data_len;
3069 match_result result;
3075 /* Load the frame's data. */
3076 if (!cf_read_frame(cf, fdata)) {
3077 /* Attempt to get the packet failed. */
3081 result = MR_NOTMATCHED;
3082 buf_len = fdata->pkt_len;
3083 for (i = 0; i < buf_len; i++) {
3086 c_char = toupper(c_char);
3087 if (c_char == ascii_text[c_match]) {
3090 if (c_match == textlen) {
3091 result = MR_MATCHED;
3092 cf->search_pos = i; /* Save the position of the last character
3093 for highlighting the field. */
3103 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3105 cbs_t *info = criterion;
3106 const guint8 *binary_data = info->data;
3107 size_t datalen = info->data_len;
3108 match_result result;
3113 /* Load the frame's data. */
3114 if (!cf_read_frame(cf, fdata)) {
3115 /* Attempt to get the packet failed. */
3119 result = MR_NOTMATCHED;
3120 buf_len = fdata->pkt_len;
3121 for (i = 0; i < buf_len; i++) {
3122 if (cf->pd[i] == binary_data[c_match]) {
3124 if (c_match == datalen) {
3125 result = MR_MATCHED;
3126 cf->search_pos = i; /* Save the position of the last character
3127 for highlighting the field. */
3137 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3138 search_direction dir)
3140 return find_packet(cf, match_dfilter, sfcode, dir);
3144 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3145 search_direction dir)
3150 if (!dfilter_compile(filter, &sfcode)) {
3152 * XXX - this shouldn't happen, as the filter string is machine
3157 if (sfcode == NULL) {
3159 * XXX - this shouldn't happen, as the filter string is machine
3164 result = find_packet(cf, match_dfilter, sfcode, dir);
3165 dfilter_free(sfcode);
3170 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3172 dfilter_t *sfcode = criterion;
3174 match_result result;
3176 /* Load the frame's data. */
3177 if (!cf_read_frame(cf, fdata)) {
3178 /* Attempt to get the packet failed. */
3182 epan_dissect_init(&edt, TRUE, FALSE);
3183 epan_dissect_prime_dfilter(&edt, sfcode);
3184 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3185 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3186 epan_dissect_cleanup(&edt);
3191 cf_find_packet_marked(capture_file *cf, search_direction dir)
3193 return find_packet(cf, match_marked, NULL, dir);
3197 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3199 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3203 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3205 return find_packet(cf, match_time_reference, NULL, dir);
3209 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3211 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3215 find_packet(capture_file *cf,
3216 match_result (*match_function)(capture_file *, frame_data *, void *),
3217 void *criterion, search_direction dir)
3219 frame_data *start_fd;
3221 frame_data *new_fd = NULL;
3222 progdlg_t *progbar = NULL;
3227 GTimeVal start_time;
3228 gchar status_str[100];
3229 int progbar_nextstep;
3230 int progbar_quantum;
3232 match_result result;
3234 start_fd = cf->current_frame;
3235 if (start_fd != NULL) {
3236 /* Iterate through the list of packets, starting at the packet we've
3237 picked, calling a routine to run the filter on the packet, see if
3238 it matches, and stop if so. */
3242 /* Update the progress bar when it gets to this value. */
3243 progbar_nextstep = 0;
3244 /* When we reach the value that triggers a progress bar update,
3245 bump that value by this amount. */
3246 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3247 /* Progress so far. */
3251 g_get_current_time(&start_time);
3253 title = cf->sfilter?cf->sfilter:"";
3255 /* Create the progress bar if necessary.
3256 We check on every iteration of the loop, so that it takes no
3257 longer than the standard time to create it (otherwise, for a
3258 large file, we might take considerably longer than that standard
3259 time in order to get to the next progress bar step). */
3260 if (progbar == NULL)
3261 progbar = delayed_create_progress_dlg("Searching", title,
3262 FALSE, &stop_flag, &start_time, progbar_val);
3264 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3265 when we update it, we have to run the GTK+ main loop to get it
3266 to repaint what's pending, and doing so may involve an "ioctl()"
3267 to see if there's any pending input from an X server, and doing
3268 that for every packet can be costly, especially on a big file. */
3269 if (count >= progbar_nextstep) {
3270 /* let's not divide by zero. I should never be started
3271 * with count == 0, so let's assert that
3273 g_assert(cf->count > 0);
3275 progbar_val = (gfloat) count / cf->count;
3277 if (progbar != NULL) {
3278 g_snprintf(status_str, sizeof(status_str),
3279 "%4u of %u packets", count, cf->count);
3280 update_progress_dlg(progbar, progbar_val, status_str);
3283 progbar_nextstep += progbar_quantum;
3287 /* Well, the user decided to abort the search. Go back to the
3288 frame where we started. */
3293 /* Go past the current frame. */
3294 if (dir == SD_BACKWARD) {
3295 /* Go on to the previous frame. */
3296 fdata = fdata->prev;
3297 if (fdata == NULL) {
3299 * XXX - other apps have a bit more of a detailed message
3300 * for this, and instead of offering "OK" and "Cancel",
3301 * they offer things such as "Continue" and "Cancel";
3302 * we need an API for popping up alert boxes with
3303 * {Verb} and "Cancel".
3306 if (prefs.gui_find_wrap)
3308 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3309 fdata = cf->plist_end; /* wrap around */
3313 statusbar_push_temporary_msg("Search reached the beginning.");
3314 fdata = start_fd; /* stay on previous packet */
3318 /* Go on to the next frame. */
3319 fdata = fdata->next;
3320 if (fdata == NULL) {
3321 if (prefs.gui_find_wrap)
3323 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3324 fdata = cf->plist_start; /* wrap around */
3328 statusbar_push_temporary_msg("Search reached the end.");
3329 fdata = start_fd; /* stay on previous packet */
3336 /* Is this packet in the display? */
3337 if (fdata->flags.passed_dfilter) {
3338 /* Yes. Does it match the search criterion? */
3339 result = (*match_function)(cf, fdata, criterion);
3340 if (result == MR_ERROR) {
3341 /* Error; our caller has reported the error. Go back to the frame
3342 where we started. */
3345 } else if (result == MR_MATCHED) {
3346 /* Yes. Go to the new frame. */
3352 if (fdata == start_fd) {
3353 /* We're back to the frame we were on originally, and that frame
3354 doesn't match the search filter. The search failed. */
3359 /* We're done scanning the packets; destroy the progress bar if it
3361 if (progbar != NULL)
3362 destroy_progress_dlg(progbar);
3365 if (new_fd != NULL) {
3366 /* Find and select */
3367 cf->search_in_progress = TRUE;
3368 found = new_packet_list_select_row_from_data(new_fd);
3369 cf->search_in_progress = FALSE;
3370 cf->search_pos = 0; /* Reset the position */
3372 /* We didn't find a row corresponding to this frame.
3373 This means that the frame isn't being displayed currently,
3374 so we can't select it. */
3375 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3376 "%sEnd of capture exceeded!%s\n\n"
3377 "The capture file is probably not fully dissected.",
3378 simple_dialog_primary_start(), simple_dialog_primary_end());
3381 return TRUE; /* success */
3383 return FALSE; /* failure */
3387 cf_goto_frame(capture_file *cf, guint fnumber)
3391 for (fdata = cf->plist_start; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3394 if (fdata == NULL) {
3395 /* we didn't find a packet with that packet number */
3396 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3397 return FALSE; /* we failed to go to that packet */
3399 if (!fdata->flags.passed_dfilter) {
3400 /* that packet currently isn't displayed */
3401 /* XXX - add it to the set of displayed packets? */
3402 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3403 return FALSE; /* we failed to go to that packet */
3406 if (!new_packet_list_select_row_from_data(fdata)) {
3407 /* We didn't find a row corresponding to this frame.
3408 This means that the frame isn't being displayed currently,
3409 so we can't select it. */
3410 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3411 "%sEnd of capture exceeded!%s\n\n"
3412 "The capture file is probably not fully dissected.",
3413 simple_dialog_primary_start(), simple_dialog_primary_end());
3416 return TRUE; /* we got to that packet */
3422 /* Find and select */
3423 new_packet_list_select_first_row();
3424 return TRUE; /* we got to that packet */
3428 cf_goto_bottom_frame()
3430 /* Find and select */
3431 new_packet_list_select_last_row();
3432 return TRUE; /* we got to that packet */
3436 * Go to frame specified by currently selected protocol tree item.
3439 cf_goto_framenum(capture_file *cf)
3441 header_field_info *hfinfo;
3444 if (cf->finfo_selected) {
3445 hfinfo = cf->finfo_selected->hfinfo;
3447 if (hfinfo->type == FT_FRAMENUM) {
3448 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3450 return cf_goto_frame(cf, framenum);
3457 /* Select the packet on a given row. */
3459 cf_select_packet(capture_file *cf, int row)
3463 /* Get the frame data struct pointer for this frame */
3464 fdata = new_packet_list_get_row_data(row);
3466 if (fdata == NULL) {
3467 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3468 the first entry is added to it by "real_insert_row()", that row
3469 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3470 our version and the vanilla GTK+ version).
3472 This means that a "select-row" signal is emitted; this causes
3473 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3476 "cf_select_packet()" fetches, above, the data associated with the
3477 row that was selected; however, as "gtk_clist_append()", which
3478 called "real_insert_row()", hasn't yet returned, we haven't yet
3479 associated any data with that row, so we get back a null pointer.
3481 We can't assume that there's only one frame in the frame list,
3482 either, as we may be filtering the display.
3484 We therefore assume that, if "row" is 0, i.e. the first row
3485 is being selected, and "cf->first_displayed" equals
3486 "cf->last_displayed", i.e. there's only one frame being
3487 displayed, that frame is the frame we want.
3489 This means we have to set "cf->first_displayed" and
3490 "cf->last_displayed" before adding the row to the
3491 GtkCList; see the comment in "add_packet_to_packet_list()". */
3493 if (row == 0 && cf->first_displayed == cf->last_displayed)
3494 fdata = cf->first_displayed;
3497 /* If fdata _still_ isn't set simply give up. */
3498 if (fdata == NULL) {
3502 /* Get the data in that frame. */
3503 if (!cf_read_frame (cf, fdata)) {
3507 /* Record that this frame is the current frame. */
3508 cf->current_frame = fdata;
3509 cf->current_row = row;
3511 /* Create the logical protocol tree. */
3512 if (cf->edt != NULL)
3513 epan_dissect_free(cf->edt);
3515 /* We don't need the columns here. */
3516 cf->edt = epan_dissect_new(TRUE, TRUE);
3518 tap_build_interesting(cf->edt);
3519 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3522 dfilter_macro_build_ftv_cache(cf->edt->tree);
3524 cf_callback_invoke(cf_cb_packet_selected, cf);
3527 /* Unselect the selected packet, if any. */
3529 cf_unselect_packet(capture_file *cf)
3531 /* Destroy the epan_dissect_t for the unselected packet. */
3532 if (cf->edt != NULL) {
3533 epan_dissect_free(cf->edt);
3537 /* No packet is selected. */
3538 cf->current_frame = NULL;
3539 cf->current_row = 0;
3541 cf_callback_invoke(cf_cb_packet_unselected, cf);
3543 /* No protocol tree means no selected field. */
3544 cf_unselect_field(cf);
3547 /* Unset the selected protocol tree field, if any. */
3549 cf_unselect_field(capture_file *cf)
3551 cf->finfo_selected = NULL;
3553 cf_callback_invoke(cf_cb_field_unselected, cf);
3557 * Mark a particular frame.
3560 cf_mark_frame(capture_file *cf, frame_data *frame)
3562 if (! frame->flags.marked) {
3563 frame->flags.marked = TRUE;
3564 if (cf->count > cf->marked_count)
3570 * Unmark a particular frame.
3573 cf_unmark_frame(capture_file *cf, frame_data *frame)
3575 if (frame->flags.marked) {
3576 frame->flags.marked = FALSE;
3577 if (cf->marked_count > 0)
3583 * Ignore a particular frame.
3586 cf_ignore_frame(capture_file *cf, frame_data *frame)
3588 if (! frame->flags.ignored) {
3589 frame->flags.ignored = TRUE;
3590 if (cf->count > cf->ignored_count)
3591 cf->ignored_count++;
3596 * Un-ignore a particular frame.
3599 cf_unignore_frame(capture_file *cf, frame_data *frame)
3601 if (frame->flags.ignored) {
3602 frame->flags.ignored = FALSE;
3603 if (cf->ignored_count > 0)
3604 cf->ignored_count--;
3611 } save_callback_args_t;
3614 * Save a capture to a file, in a particular format, saving either
3615 * all packets, all currently-displayed packets, or all marked packets.
3617 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3618 * up a message box for the failure.
3621 save_packet(capture_file *cf _U_, frame_data *fdata,
3622 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3625 save_callback_args_t *args = argsp;
3626 struct wtap_pkthdr hdr;
3629 /* init the wtap header for saving */
3630 hdr.ts.secs = fdata->abs_ts.secs;
3631 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3632 hdr.caplen = fdata->cap_len;
3633 hdr.len = fdata->pkt_len;
3634 hdr.pkt_encap = fdata->lnk_t;
3636 /* and save the packet */
3637 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3638 cf_write_failure_alert_box(args->fname, err);
3645 * Can this capture file be saved in any format except by copying the raw data?
3648 cf_can_save_as(capture_file *cf)
3652 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3653 /* To save a file with Wiretap, Wiretap has to handle that format,
3654 and its code to handle that format must be able to write a file
3655 with this file's encapsulation type. */
3656 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3657 /* OK, we can write it out in this type. */
3662 /* No, we couldn't save it in any format. */
3667 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3669 gchar *from_filename;
3673 save_callback_args_t callback_args;
3675 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
3677 /* don't write over an existing file. */
3678 /* this should've been already checked by our caller, just to be sure... */
3679 if (file_exists(fname)) {
3680 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3681 "%sCapture file: \"%s\" already exists!%s\n\n"
3682 "Please choose a different filename.",
3683 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3687 packet_range_process_init(range);
3689 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3690 /* We're not filtering packets, and we're saving it in the format
3691 it's already in, so we can just move or copy the raw data. */
3693 if (cf->is_tempfile) {
3694 /* The file being saved is a temporary file from a live
3695 capture, so it doesn't need to stay around under that name;
3696 first, try renaming the capture buffer file to the new name. */
3698 if (ws_rename(cf->filename, fname) == 0) {
3699 /* That succeeded - there's no need to copy the source file. */
3700 from_filename = NULL;
3703 if (errno == EXDEV) {
3704 /* They're on different file systems, so we have to copy the
3707 from_filename = cf->filename;
3709 /* The rename failed, but not because they're on different
3710 file systems - put up an error message. (Or should we
3711 just punt and try to copy? The only reason why I'd
3712 expect the rename to fail and the copy to succeed would
3713 be if we didn't have permission to remove the file from
3714 the temporary directory, and that might be fixable - but
3715 is it worth requiring the user to go off and fix it?) */
3716 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3717 file_rename_error_message(errno), fname);
3723 from_filename = cf->filename;
3726 /* It's a permanent file, so we should copy it, and not remove the
3729 from_filename = cf->filename;
3733 /* Copy the file, if we haven't moved it. */
3734 if (!copy_file_binary_mode(from_filename, fname))
3738 /* Either we're filtering packets, or we're saving in a different
3739 format; we can't do that by copying or moving the capture file,
3740 we have to do it by writing the packets out in Wiretap. */
3741 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3744 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3748 /* XXX - we let the user save a subset of the packets.
3750 If we do that, should we make that file the current file? If so,
3751 it means we can no longer get at the other packets. What does
3754 /* Iterate through the list of packets, processing the packets we were
3757 XXX - we've already called "packet_range_process_init(range)", but
3758 "process_specified_packets()" will do it again. Fortunately,
3759 that's harmless in this case, as we haven't done anything to
3760 "range" since we initialized it. */
3761 callback_args.pdh = pdh;
3762 callback_args.fname = fname;
3763 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3764 TRUE, save_packet, &callback_args)) {
3767 /* Completed successfully. */
3771 /* The user decided to abort the saving.
3772 XXX - remove the output file? */
3776 /* Error while saving. */
3777 wtap_dump_close(pdh, &err);
3781 if (!wtap_dump_close(pdh, &err)) {
3782 cf_close_failure_alert_box(fname, err);
3787 cf_callback_invoke(cf_cb_file_save_finished, NULL);
3789 if (packet_range_process_all(range)) {
3790 /* We saved the entire capture, not just some packets from it.
3791 Open and read the file we saved it to.
3793 XXX - this is somewhat of a waste; we already have the
3794 packets, all this gets us is updated file type information
3795 (which we could just stuff into "cf"), and having the new
3796 file be the one we have opened and from which we're reading
3797 the data, and it means we have to spend time opening and
3798 reading the file, which could be a significant amount of
3799 time if the file is large. */
3800 cf->user_saved = TRUE;
3802 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3803 /* XXX - report errors if this fails?
3804 What should we return if it fails or is aborted? */
3806 switch (cf_read(cf, TRUE)) {
3810 /* Just because we got an error, that doesn't mean we were unable
3811 to read any of the file; we handle what we could get from the
3815 case CF_READ_ABORTED:
3816 /* The user bailed out of re-reading the capture file; the
3817 capture file has been closed - just return (without
3818 changing any menu settings; "cf_close()" set them
3819 correctly for the "no capture file open" state). */
3822 cf_callback_invoke(cf_cb_file_save_reload_finished, cf);
3828 cf_callback_invoke(cf_cb_file_save_failed, NULL);
3833 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3834 gboolean for_writing, int file_type)
3837 /* Wiretap error. */
3840 case WTAP_ERR_NOT_REGULAR_FILE:
3841 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3842 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3846 case WTAP_ERR_RANDOM_OPEN_PIPE:
3847 /* Seen only when opening a capture file for reading. */
3848 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3849 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
3853 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3854 /* Seen only when opening a capture file for reading. */
3855 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3856 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
3860 case WTAP_ERR_UNSUPPORTED:
3861 /* Seen only when opening a capture file for reading. */
3862 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3863 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
3865 filename, err_info);
3869 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3870 /* Seen only when opening a capture file for writing. */
3871 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3872 "The file \"%s\" is a pipe, and %s capture files can't be "
3873 "written to a pipe.",
3874 filename, wtap_file_type_string(file_type));
3877 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3878 /* Seen only when opening a capture file for writing. */
3879 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3880 "Wireshark doesn't support writing capture files in that format.");
3883 case WTAP_ERR_UNSUPPORTED_ENCAP:
3885 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3886 "Wireshark can't save this capture in that format.");
3888 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3889 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
3891 filename, err_info);
3896 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3898 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3899 "Wireshark can't save this capture in that format.");
3901 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3902 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
3907 case WTAP_ERR_BAD_RECORD:
3908 /* Seen only when opening a capture file for reading. */
3909 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3910 "The file \"%s\" appears to be damaged or corrupt.\n"
3912 filename, err_info);
3916 case WTAP_ERR_CANT_OPEN:
3918 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3919 "The file \"%s\" could not be created for some unknown reason.",
3922 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3923 "The file \"%s\" could not be opened for some unknown reason.",
3928 case WTAP_ERR_SHORT_READ:
3929 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3930 "The file \"%s\" appears to have been cut short"
3931 " in the middle of a packet or other data.",
3935 case WTAP_ERR_SHORT_WRITE:
3936 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3937 "A full header couldn't be written to the file \"%s\".",
3941 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3942 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3943 "Gzip compression not supported by this file type.");
3946 case WTAP_ERR_DECOMPRESS:
3947 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3948 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
3949 "(%s)", filename, err_info);
3954 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3955 "The file \"%s\" could not be %s: %s.",
3957 for_writing ? "created" : "opened",
3958 wtap_strerror(err));
3963 open_failure_alert_box(filename, err, for_writing);
3968 file_rename_error_message(int err)
3971 static char errmsg_errno[1024+1];
3976 errmsg = "The path to the file \"%s\" doesn't exist.";
3980 errmsg = "You don't have permission to move the capture file to \"%s\".";
3984 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3985 "The file \"%%s\" could not be moved: %s.",
3986 wtap_strerror(err));
3987 errmsg = errmsg_errno;
3994 cf_write_failure_alert_box(const char *filename, int err)
3997 /* Wiretap error. */
3998 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3999 "An error occurred while writing to the file \"%s\": %s.",
4000 filename, wtap_strerror(err));
4003 write_failure_alert_box(filename, err);
4007 /* Check for write errors - if the file is being written to an NFS server,
4008 a write error may not show up until the file is closed, as NFS clients
4009 might not send writes to the server until the "write()" call finishes,
4010 so that the write may fail on the server but the "write()" may succeed. */
4012 cf_close_failure_alert_box(const char *filename, int err)
4015 /* Wiretap error. */
4018 case WTAP_ERR_CANT_CLOSE:
4019 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4020 "The file \"%s\" couldn't be closed for some unknown reason.",
4024 case WTAP_ERR_SHORT_WRITE:
4025 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4026 "Not all the packets could be written to the file \"%s\".",
4031 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4032 "An error occurred while closing the file \"%s\": %s.",
4033 filename, wtap_strerror(err));
4038 We assume that a close error from the OS is really a write error. */
4039 write_failure_alert_box(filename, err);
4043 /* Reload the current capture file. */
4045 cf_reload(capture_file *cf) {
4047 gboolean is_tempfile;
4050 /* If the file could be opened, "cf_open()" calls "cf_close()"
4051 to get rid of state for the old capture file before filling in state
4052 for the new capture file. "cf_close()" will remove the file if
4053 it's a temporary file; we don't want that to happen (for one thing,
4054 it'd prevent subsequent reopens from working). Remember whether it's
4055 a temporary file, mark it as not being a temporary file, and then
4056 reopen it as the type of file it was.
4058 Also, "cf_close()" will free "cf->filename", so we must make
4059 a copy of it first. */
4060 filename = g_strdup(cf->filename);
4061 is_tempfile = cf->is_tempfile;
4062 cf->is_tempfile = FALSE;
4063 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4064 switch (cf_read(cf, FALSE)) {
4068 /* Just because we got an error, that doesn't mean we were unable
4069 to read any of the file; we handle what we could get from the
4073 case CF_READ_ABORTED:
4074 /* The user bailed out of re-reading the capture file; the
4075 capture file has been closed - just free the capture file name
4076 string and return (without changing the last containing
4082 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4083 Instead, the file was left open, so we should restore "cf->is_tempfile"
4086 XXX - change the menu? Presumably "cf_open()" will do that;
4087 make sure it does! */
4088 cf->is_tempfile = is_tempfile;
4090 /* "cf_open()" made a copy of the file name we handed it, so
4091 we should free up our copy. */
4101 * indent-tabs-mode: nil
4104 * ex: set shiftwidth=2 tabstop=8 expandtab
4105 * :indentSize=2:tabSize=8:noTabs=true: