6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #include <epan/epan.h>
47 #include <epan/filesystem.h>
50 #include "color_filters.h"
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include "packet-range.h"
61 #include "alert_box.h"
62 #include "simple_dialog.h"
63 #include "progress_dlg.h"
65 #include <epan/prefs.h>
66 #include <epan/dfilter/dfilter.h>
67 #include <epan/epan_dissect.h>
69 #include <epan/dissectors/packet-data.h>
70 #include <epan/dissectors/packet-ber.h>
71 #include <epan/timestamp.h>
72 #include <epan/dfilter/dfilter-macro.h>
73 #include <wsutil/file_util.h>
74 #include <epan/strutil.h>
78 gboolean auto_scroll_live;
81 static nstime_t first_ts;
82 static nstime_t prev_dis_ts;
83 static guint32 cum_bytes = 0;
84 static gulong computed_elapsed;
86 static void cf_reset_state(capture_file *cf);
88 static int read_packet(capture_file *cf, dfilter_t *dfcode,
89 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset);
91 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
92 gboolean refilter, gboolean redissect);
94 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
96 static void match_subtree_text(proto_node *node, gpointer data);
97 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
99 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
101 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
103 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
105 static gboolean match_binary(capture_file *cf, frame_data *fdata,
107 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
109 static gboolean find_packet(capture_file *cf,
110 gboolean (*match_function)(capture_file *, frame_data *, void *),
113 static void cf_open_failure_alert_box(const char *filename, int err,
114 gchar *err_info, gboolean for_writing,
116 static const char *file_rename_error_message(int err);
117 static void cf_write_failure_alert_box(const char *filename, int err);
118 static void cf_close_failure_alert_box(const char *filename, int err);
119 #ifdef NEW_PACKET_LIST
120 static void ref_time_packets(capture_file *cf);
122 /* Update the progress bar this many times when reading a file. */
123 #define N_PROGBAR_UPDATES 100
124 /* We read around 200k/100ms domt update the progress bar more often than that */
125 #define MIN_QUANTUM 200000
126 #define MIN_NUMBER_OF_PACKET 1500
128 /* Number of "frame_data" structures per memory chunk.
129 XXX - is this the right number? */
130 #define FRAME_DATA_CHUNK_SIZE 1024
133 /* this callback mechanism should possibly be replaced by the g_signal_...() stuff (if I only would know how :-) */
135 cf_callback_t cb_fct;
137 } cf_callback_data_t;
139 static GList *cf_callbacks = NULL;
142 cf_callback_invoke(int event, gpointer data)
144 cf_callback_data_t *cb;
145 GList *cb_item = cf_callbacks;
147 /* there should be at least one interested */
148 g_assert(cb_item != NULL);
150 while(cb_item != NULL) {
152 cb->cb_fct(event, data, cb->user_data);
153 cb_item = g_list_next(cb_item);
159 cf_callback_add(cf_callback_t func, gpointer user_data)
161 cf_callback_data_t *cb;
163 cb = g_malloc(sizeof(cf_callback_data_t));
165 cb->user_data = user_data;
167 cf_callbacks = g_list_append(cf_callbacks, cb);
171 cf_callback_remove(cf_callback_t func)
173 cf_callback_data_t *cb;
174 GList *cb_item = cf_callbacks;
176 while(cb_item != NULL) {
178 if(cb->cb_fct == func) {
179 cf_callbacks = g_list_remove(cf_callbacks, cb);
183 cb_item = g_list_next(cb_item);
186 g_assert_not_reached();
190 cf_timestamp_auto_precision(capture_file *cf)
192 #ifdef NEW_PACKET_LIST
195 int prec = timestamp_get_precision();
198 /* don't try to get the file's precision if none is opened */
199 if(cf->state == FILE_CLOSED) {
203 /* if we are in auto mode, set precision of current file */
204 if(prec == TS_PREC_AUTO ||
205 prec == TS_PREC_AUTO_SEC ||
206 prec == TS_PREC_AUTO_DSEC ||
207 prec == TS_PREC_AUTO_CSEC ||
208 prec == TS_PREC_AUTO_MSEC ||
209 prec == TS_PREC_AUTO_USEC ||
210 prec == TS_PREC_AUTO_NSEC)
212 switch(wtap_file_tsprecision(cf->wth)) {
213 case(WTAP_FILE_TSPREC_SEC):
214 timestamp_set_precision(TS_PREC_AUTO_SEC);
216 case(WTAP_FILE_TSPREC_DSEC):
217 timestamp_set_precision(TS_PREC_AUTO_DSEC);
219 case(WTAP_FILE_TSPREC_CSEC):
220 timestamp_set_precision(TS_PREC_AUTO_CSEC);
222 case(WTAP_FILE_TSPREC_MSEC):
223 timestamp_set_precision(TS_PREC_AUTO_MSEC);
225 case(WTAP_FILE_TSPREC_USEC):
226 timestamp_set_precision(TS_PREC_AUTO_USEC);
228 case(WTAP_FILE_TSPREC_NSEC):
229 timestamp_set_precision(TS_PREC_AUTO_NSEC);
232 g_assert_not_reached();
235 #ifdef NEW_PACKET_LIST
236 /* Set the column widths of those columns that show the time in
237 "command-line-specified" format. */
238 for (i = 0; i < cf->cinfo.num_cols; i++) {
239 if (col_has_time_fmt(&cf->cinfo, i)) {
240 new_packet_list_set_time_width(i);
248 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
253 wth = wtap_open_offline(fname, err, &err_info, TRUE);
257 /* The open succeeded. Close whatever capture file we had open,
258 and fill in the information for this file. */
261 /* Cleanup all data structures used for dissection. */
262 cleanup_dissection();
263 /* Initialize all data structures used for dissection. */
266 /* We're about to start reading the file. */
267 cf->state = FILE_READ_IN_PROGRESS;
272 /* Set the file name because we need it to set the follow stream filter.
273 XXX - is that still true? We need it for other reasons, though,
275 cf->filename = g_strdup(fname);
277 /* Indicate whether it's a permanent or temporary file. */
278 cf->is_tempfile = is_tempfile;
280 /* If it's a temporary capture buffer file, mark it as not saved. */
281 cf->user_saved = !is_tempfile;
283 cf->cd_t = wtap_file_type(cf->wth);
285 cf->displayed_count = 0;
286 cf->marked_count = 0;
287 cf->drops_known = FALSE;
289 cf->snap = wtap_snapshot_length(cf->wth);
291 /* Snapshot length not known. */
292 cf->has_snap = FALSE;
293 cf->snap = WTAP_MAX_PACKET_SIZE;
296 nstime_set_zero(&cf->elapsed_time);
297 nstime_set_unset(&first_ts);
298 nstime_set_unset(&prev_dis_ts);
300 #if GLIB_CHECK_VERSION(2,10,0)
302 /* memory chunks have been deprecated in favor of the slice allocator,
303 * which has been added in 2.10
305 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
307 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
309 g_assert(cf->plist_chunk);
311 /* change the time formats now, as we might have a new precision */
312 cf_change_time_formats(cf);
314 fileset_file_opened(fname);
316 if(cf->cd_t == WTAP_FILE_BER) {
317 /* tell the BER dissector the file name */
318 ber_set_filename(cf->filename);
324 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
330 * Reset the state for the currently closed file, but don't do the
331 * UI callbacks; this is for use in "cf_open()", where we don't
332 * want the UI to go from "file open" to "file closed" back to
333 * "file open", we want it to go from "old file open" to "new file
334 * open and being read".
337 cf_reset_state(capture_file *cf)
339 /* Die if we're in the middle of reading a file. */
340 g_assert(cf->state != FILE_READ_IN_PROGRESS);
346 /* We have no file open... */
347 if (cf->filename != NULL) {
348 /* If it's a temporary file, remove it. */
350 ws_unlink(cf->filename);
351 g_free(cf->filename);
354 /* ...which means we have nothing to save. */
355 cf->user_saved = FALSE;
357 #if GLIB_CHECK_VERSION(2,10,0)
358 if (cf->plist != NULL)
359 g_slice_free_chain(frame_data, cf->plist, next);
361 /* memory chunks have been deprecated in favor of the slice allocator,
362 * which has been added in 2.10
364 if (cf->plist_chunk != NULL) {
365 g_mem_chunk_destroy(cf->plist_chunk);
366 cf->plist_chunk = NULL;
369 if (cf->rfcode != NULL) {
370 dfilter_free(cf->rfcode);
374 cf->plist_end = NULL;
375 cf_unselect_packet(cf); /* nothing to select */
376 cf->first_displayed = NULL;
377 cf->last_displayed = NULL;
379 /* No frame selected, no field in that frame selected. */
380 cf->current_frame = NULL;
382 cf->finfo_selected = NULL;
384 /* Clear the packet list. */
385 #ifdef NEW_PACKET_LIST
386 new_packet_list_freeze();
387 new_packet_list_clear();
388 new_packet_list_thaw();
390 packet_list_freeze();
397 nstime_set_zero(&cf->elapsed_time);
399 reset_tap_listeners();
401 /* We have no file open. */
402 cf->state = FILE_CLOSED;
404 fileset_file_closed();
407 /* Reset everything to a pristine state */
409 cf_close(capture_file *cf)
411 /* do GUI things even if file is already closed,
412 * e.g. to cleanup things if a capture couldn't be started */
413 cf_callback_invoke(cf_cb_file_closing, cf);
415 /* close things, if not already closed before */
416 if(cf->state != FILE_CLOSED) {
417 color_filters_cleanup();
419 cleanup_dissection();
422 cf_callback_invoke(cf_cb_file_closed, cf);
425 /* an out of memory exception occured, wait for a user button press to exit */
426 void outofmemory_cb(gpointer dialog _U_, gint btn _U_, gpointer data _U_)
432 cf_get_computed_elapsed(void){
433 return computed_elapsed;
435 static void compute_elapsed(GTimeVal *start_time)
440 g_get_current_time(&time_now);
442 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
443 time_now.tv_usec - start_time->tv_usec;
445 computed_elapsed = (gulong) (delta_time / 1000); /* ms*/
448 static float calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos){
452 progbar_val = (gfloat) file_pos / (gfloat) size;
453 if (progbar_val > 1.0) {
454 /* The file probably grew while we were reading it.
455 Update file size, and try again. */
456 size = wtap_file_size(cf->wth, NULL);
458 progbar_val = (gfloat) file_pos / (gfloat) size;
459 /* If it's still > 1, either "wtap_file_size()" failed (in which
460 case there's not much we can do about it), or the file
461 *shrank* (in which case there's not much we can do about
462 it); just clip the progress value at 1.0. */
463 if (progbar_val > 1.0f)
470 cf_read(capture_file *cf)
474 const gchar *name_ptr;
476 char errmsg_errno[1024+1];
478 progdlg_t *volatile progbar = NULL;
480 volatile gint64 size;
481 volatile float progbar_val;
483 gchar status_str[100];
484 volatile gint64 progbar_nextstep;
485 volatile gint64 progbar_quantum;
487 gboolean filtering_tap_listeners;
489 volatile int count = 0;
491 volatile int displayed_once = 0;
494 /* Compile the current display filter.
495 * We assume this will not fail since cf->dfilter is only set in
496 * cf_filter IFF the filter was valid.
500 dfilter_compile(cf->dfilter, &dfcode);
503 /* Do we have any tap listeners with filters? */
504 filtering_tap_listeners = have_filtering_tap_listeners();
506 /* Get the union of the flags for all tap listeners. */
507 tap_flags = union_of_tap_listener_flags();
511 reset_tap_listeners();
513 cf_callback_invoke(cf_cb_file_read_start, cf);
515 name_ptr = get_basename(cf->filename);
517 /* Find the size of the file. */
518 size = wtap_file_size(cf->wth, NULL);
520 /* Update the progress bar when it gets to this value. */
521 progbar_nextstep = 0;
522 /* When we reach the value that triggers a progress bar update,
523 bump that value by this amount. */
525 progbar_quantum = size/N_PROGBAR_UPDATES;
526 if (progbar_quantum < MIN_QUANTUM)
527 progbar_quantum = MIN_QUANTUM;
530 /* Progress so far. */
533 #ifdef NEW_PACKET_LIST
534 new_packet_list_freeze();
536 packet_list_freeze();
540 g_get_current_time(&start_time);
542 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
545 /* Create the progress bar if necessary.
546 * Check wether it should be created or not every MIN_NUMBER_OF_PACKET
548 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)){
549 progbar_val = calc_progbar_val( cf, size, data_offset);
550 progbar = delayed_create_progress_dlg("Loading", name_ptr,
551 TRUE, &stop_flag, &start_time, progbar_val);
554 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
555 when we update it, we have to run the GTK+ main loop to get it
556 to repaint what's pending, and doing so may involve an "ioctl()"
557 to see if there's any pending input from an X server, and doing
558 that for every packet can be costly, especially on a big file. */
559 if (data_offset >= progbar_nextstep) {
560 if (progbar != NULL) {
561 progbar_val = calc_progbar_val( cf, size, data_offset);
562 /* update the packet lists content on the first run or frequently on very large files */
563 /* (on smaller files the display update takes longer than reading the file) */
565 if (progbar_quantum > 500000 || displayed_once == 0) {
566 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->plist_end != NULL) {
568 #ifdef NEW_PACKET_LIST
569 new_packet_list_thaw();
570 if (auto_scroll_live)
571 new_packet_list_moveto_end();
572 new_packet_list_freeze();
575 if (auto_scroll_live)
576 packet_list_moveto_end();
577 packet_list_freeze();
578 #endif /* NEW_PACKET_LIST */
581 #endif /* HAVE_LIBPCAP */
582 g_snprintf(status_str, sizeof(status_str),
583 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
584 data_offset / 1024, size / 1024);
585 update_progress_dlg(progbar, progbar_val, status_str);
587 progbar_nextstep += progbar_quantum;
592 /* Well, the user decided to abort the read. He/She will be warned and
593 it might be enough for him/her to work with the already loaded
595 This is especially true for very large capture files, where you don't
596 want to wait loading the whole file (which may last minutes or even
597 hours even on fast machines) just to see that it was the wrong file. */
601 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
603 CATCH(OutOfMemoryError) {
606 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
607 "%sOut Of Memory!%s\n"
609 "Sorry, but Wireshark has to terminate now!\n"
611 "Some infos / workarounds can be found at:\n"
612 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
613 simple_dialog_primary_start(), simple_dialog_primary_end());
614 /* we have to terminate, as we cannot recover from the memory error */
615 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
617 main_window_update();
618 /* XXX - how to avoid a busy wait? */
626 /* Cleanup and release all dfilter resources */
628 dfilter_free(dfcode);
631 /* We're done reading the file; destroy the progress bar if it was created. */
633 destroy_progress_dlg(progbar);
635 /* We're done reading sequentially through the file. */
636 cf->state = FILE_READ_DONE;
638 /* Close the sequential I/O side, to free up memory it requires. */
639 wtap_sequential_close(cf->wth);
641 /* Allow the protocol dissectors to free up memory that they
642 * don't need after the sequential run-through of the packets. */
643 postseq_cleanup_all_protocols();
645 /* compute the time it took to load the file */
646 compute_elapsed(&start_time);
648 /* Set the file encapsulation type now; we don't know what it is until
649 we've looked at all the packets, as we don't know until then whether
650 there's more than one type (and thus whether it's
651 WTAP_ENCAP_PER_PACKET). */
652 cf->lnk_t = wtap_file_encap(cf->wth);
654 cf->current_frame = cf->first_displayed;
657 #ifdef NEW_PACKET_LIST
658 new_packet_list_thaw();
663 cf_callback_invoke(cf_cb_file_read_finished, cf);
665 /* If we have any displayed packets to select, select the first of those
666 packets by making the first row the selected row. */
667 if (cf->first_displayed != NULL){
668 #ifdef NEW_PACKET_LIST
669 new_packet_list_select_first_row();
671 packet_list_select_row(0);
672 #endif /* NEW_PACKET_LIST */
676 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
677 "%sFile loading was cancelled!%s\n"
679 "The remaining packets in the file were discarded.\n"
681 "As a lot of packets from the original file will be missing,\n"
682 "remember to be careful when saving the current content to a file.\n",
683 simple_dialog_primary_start(), simple_dialog_primary_end());
684 return CF_READ_ERROR;
688 /* Put up a message box noting that the read failed somewhere along
689 the line. Don't throw out the stuff we managed to read, though,
693 case WTAP_ERR_UNSUPPORTED_ENCAP:
694 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
695 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
698 errmsg = errmsg_errno;
701 case WTAP_ERR_CANT_READ:
702 errmsg = "An attempt to read from the capture file failed for"
703 " some unknown reason.";
706 case WTAP_ERR_SHORT_READ:
707 errmsg = "The capture file appears to have been cut short"
708 " in the middle of a packet.";
711 case WTAP_ERR_BAD_RECORD:
712 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
713 "The capture file appears to be damaged or corrupt.\n(%s)",
716 errmsg = errmsg_errno;
720 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
721 "An error occurred while reading the"
722 " capture file: %s.", wtap_strerror(err));
723 errmsg = errmsg_errno;
726 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "%s", errmsg);
727 return CF_READ_ERROR;
734 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
736 cf_status_t cf_status;
738 cf_status = cf_open(cf, fname, is_tempfile, err);
743 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
745 gint64 data_offset = 0;
747 volatile int newly_displayed_packets = 0;
749 gboolean filtering_tap_listeners;
752 /* Compile the current display filter.
753 * We assume this will not fail since cf->dfilter is only set in
754 * cf_filter IFF the filter was valid.
758 dfilter_compile(cf->dfilter, &dfcode);
761 /* Do we have any tap listeners with filters? */
762 filtering_tap_listeners = have_filtering_tap_listeners();
764 /* Get the union of the flags for all tap listeners. */
765 tap_flags = union_of_tap_listener_flags();
769 #ifdef NEW_PACKET_LIST
770 new_packet_list_check_end();
771 new_packet_list_freeze();
773 packet_list_check_end();
774 packet_list_freeze();
777 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
779 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
780 if (cf->state == FILE_READ_ABORTED) {
781 /* Well, the user decided to exit Wireshark. Break out of the
782 loop, and let the code below (which is called even if there
783 aren't any packets left to read) exit. */
787 if (read_packet(cf, dfcode, filtering_tap_listeners, tap_flags,
788 data_offset) != -1) {
789 newly_displayed_packets++;
792 CATCH(OutOfMemoryError) {
795 dialog = simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
796 "%sOut Of Memory!%s\n"
798 "Sorry, but Wireshark has to terminate now!\n"
800 "The capture file is not lost, it can be found at:\n"
803 "Some infos / workarounds can be found at:\n"
804 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
805 simple_dialog_primary_start(), simple_dialog_primary_end(), cf->filename);
806 /* we have to terminate, as we cannot recover from the memory error */
807 simple_dialog_set_cb(dialog, outofmemory_cb, NULL);
809 main_window_update();
810 /* XXX - how to avoid a busy wait? */
813 #ifdef NEW_PACKET_LIST
814 new_packet_list_thaw();
818 return CF_READ_ABORTED;
824 /* Cleanup and release all dfilter resources */
826 dfilter_free(dfcode);
829 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
830 cf->count, cf->state, *err);*/
832 #ifdef NEW_PACKET_LIST
833 new_packet_list_thaw();
835 /* XXX - this causes "flickering" of the list */
839 /* moving to the end of the packet list - if the user requested so and
840 we have some new packets. */
841 if (newly_displayed_packets && auto_scroll_live && cf->plist_end != NULL)
842 #ifdef NEW_PACKET_LIST
843 new_packet_list_moveto_end();
845 /* this doesn't seem to work well with a frozen GTK_Clist, so do this after
846 packet_list_thaw() is done, see bugzilla 1188 */
847 /* XXX - this cheats and looks inside the packet list to find the final
849 packet_list_moveto_end();
850 #endif /* NEW_PACKET_LIST */
852 if (cf->state == FILE_READ_ABORTED) {
853 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
854 so that our caller can kill off the capture child process;
855 this will cause an EOF on the pipe from the child, so
856 "cf_finish_tail()" will be called, and it will clean up
858 return CF_READ_ABORTED;
859 } else if (*err != 0) {
860 /* We got an error reading the capture file.
861 XXX - pop up a dialog box instead? */
862 g_warning("Error \"%s\" while reading: \"%s\"\n",
863 wtap_strerror(*err), cf->filename);
865 return CF_READ_ERROR;
871 cf_finish_tail(capture_file *cf, int *err)
876 gboolean filtering_tap_listeners;
879 /* Compile the current display filter.
880 * We assume this will not fail since cf->dfilter is only set in
881 * cf_filter IFF the filter was valid.
885 dfilter_compile(cf->dfilter, &dfcode);
888 /* Do we have any tap listeners with filters? */
889 filtering_tap_listeners = have_filtering_tap_listeners();
891 /* Get the union of the flags for all tap listeners. */
892 tap_flags = union_of_tap_listener_flags();
894 if(cf->wth == NULL) {
896 return CF_READ_ERROR;
899 #ifdef NEW_PACKET_LIST
900 new_packet_list_check_end();
901 new_packet_list_freeze();
903 packet_list_check_end();
904 packet_list_freeze();
907 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
908 if (cf->state == FILE_READ_ABORTED) {
909 /* Well, the user decided to abort the read. Break out of the
910 loop, and let the code below (which is called even if there
911 aren't any packets left to read) exit. */
914 read_packet(cf, dfcode, filtering_tap_listeners, tap_flags, data_offset);
917 /* Cleanup and release all dfilter resources */
919 dfilter_free(dfcode);
922 #ifdef NEW_PACKET_LIST
923 new_packet_list_thaw();
928 if (cf->state == FILE_READ_ABORTED) {
929 /* Well, the user decided to abort the read. We're only called
930 when the child capture process closes the pipe to us (meaning
931 it's probably exited), so we can just close the capture
932 file; we return CF_READ_ABORTED so our caller can do whatever
933 is appropriate when that happens. */
935 return CF_READ_ABORTED;
938 if (auto_scroll_live && cf->plist_end != NULL)
939 #ifdef NEW_PACKET_LIST
940 new_packet_list_moveto_end();
942 /* XXX - this cheats and looks inside the packet list to find the final
944 packet_list_moveto_end();
947 /* We're done reading sequentially through the file. */
948 cf->state = FILE_READ_DONE;
950 /* We're done reading sequentially through the file; close the
951 sequential I/O side, to free up memory it requires. */
952 wtap_sequential_close(cf->wth);
954 /* Allow the protocol dissectors to free up memory that they
955 * don't need after the sequential run-through of the packets. */
956 postseq_cleanup_all_protocols();
958 /* Set the file encapsulation type now; we don't know what it is until
959 we've looked at all the packets, as we don't know until then whether
960 there's more than one type (and thus whether it's
961 WTAP_ENCAP_PER_PACKET). */
962 cf->lnk_t = wtap_file_encap(cf->wth);
965 /* We got an error reading the capture file.
966 XXX - pop up a dialog box? */
967 return CF_READ_ERROR;
972 #endif /* HAVE_LIBPCAP */
975 cf_get_display_name(capture_file *cf)
977 const gchar *displayname;
979 /* Return a name to use in displays */
980 if (!cf->is_tempfile) {
981 /* Get the last component of the file name, and use that. */
983 displayname = get_basename(cf->filename);
985 displayname="(No file)";
988 /* The file we read is a temporary file from a live capture;
989 we don't mention its name. */
990 displayname = "(Untitled)";
995 /* XXX - use a macro instead? */
997 cf_get_packet_count(capture_file *cf)
1002 /* XXX - use a macro instead? */
1004 cf_set_packet_count(capture_file *cf, int packet_count)
1006 cf->count = packet_count;
1009 /* XXX - use a macro instead? */
1011 cf_is_tempfile(capture_file *cf)
1013 return cf->is_tempfile;
1016 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1018 cf->is_tempfile = is_tempfile;
1022 /* XXX - use a macro instead? */
1023 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1025 cf->drops_known = drops_known;
1028 /* XXX - use a macro instead? */
1029 void cf_set_drops(capture_file *cf, guint32 drops)
1034 /* XXX - use a macro instead? */
1035 gboolean cf_get_drops_known(capture_file *cf)
1037 return cf->drops_known;
1040 /* XXX - use a macro instead? */
1041 guint32 cf_get_drops(capture_file *cf)
1046 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1048 cf->rfcode = rfcode;
1052 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1053 dfilter_t *dfcode, gboolean filtering_tap_listeners,
1055 union wtap_pseudo_header *pseudo_header, const guchar *buf,
1057 #ifdef NEW_PACKET_LIST
1058 gboolean add_to_packet_list)
1060 gboolean add_to_packet_list _U_)
1063 gboolean create_proto_tree = FALSE;
1068 #ifdef NEW_PACKET_LIST
1069 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1074 /* just add some value here until we know if it is being displayed or not */
1075 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1077 /* If we don't have the time stamp of the first packet in the
1078 capture, it's because this is the first packet. Save the time
1079 stamp of this packet as the time stamp of the first packet. */
1080 if (nstime_is_unset(&first_ts)) {
1081 first_ts = fdata->abs_ts;
1083 /* if this frames is marked as a reference time frame, reset
1084 firstsec and firstusec to this frame */
1085 if(fdata->flags.ref_time){
1086 first_ts = fdata->abs_ts;
1089 /* If we don't have the time stamp of the previous displayed packet,
1090 it's because this is the first displayed packet. Save the time
1091 stamp of this packet as the time stamp of the previous displayed
1093 if (nstime_is_unset(&prev_dis_ts)) {
1094 prev_dis_ts = fdata->abs_ts;
1097 /* Get the time elapsed between the first packet and this packet. */
1098 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
1100 /* If it's greater than the current elapsed time, set the elapsed time
1101 to it (we check for "greater than" so as not to be confused by
1102 time moving backwards). */
1103 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
1104 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
1105 cf->elapsed_time = fdata->rel_ts;
1108 /* Get the time elapsed between the previous displayed packet and
1110 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
1114 we have a display filter and are re-applying it;
1116 we have a list of color filters;
1118 we have tap listeners with filters;
1120 we have tap listeners that require a protocol tree;
1122 we have custom columns;
1124 allocate a protocol tree root node, so that we'll construct
1125 a protocol tree against which a filter expression can be
1127 if ((dfcode != NULL && refilter) ||
1128 #ifndef NEW_PACKET_LIST
1129 color_filters_used() ||
1130 have_custom_cols(cinfo) ||
1132 filtering_tap_listeners || (tap_flags & TL_REQUIRES_PROTO_TREE))
1133 create_proto_tree = TRUE;
1135 /* Dissect the frame. */
1136 epan_dissect_init(&edt, create_proto_tree, FALSE);
1138 if (dfcode != NULL && refilter) {
1139 epan_dissect_prime_dfilter(&edt, dfcode);
1142 /* prepare color filters */
1143 #ifndef NEW_PACKET_LIST
1144 color_filters_prime_edt(&edt);
1145 col_custom_prime_edt(&edt, cinfo);
1148 tap_queue_init(&edt);
1149 epan_dissect_run(&edt, pseudo_header, buf, fdata, cinfo);
1150 tap_push_tapped_queue(&edt);
1152 /* If we have a display filter, apply it if we're refiltering, otherwise
1153 leave the "passed_dfilter" flag alone.
1155 If we don't have a display filter, set "passed_dfilter" to 1. */
1156 if (dfcode != NULL) {
1158 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, &edt) ? 1 : 0;
1161 fdata->flags.passed_dfilter = 1;
1163 #ifdef NEW_PACKET_LIST
1164 if (add_to_packet_list) {
1165 /* We fill the needed columns from new_packet_list */
1166 row = new_packet_list_append(cinfo, fdata, &edt.pi);
1170 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) )
1172 /* This frame either passed the display filter list or is marked as
1173 a time reference frame. All time reference frames are displayed
1174 even if they dont pass the display filter */
1175 if(fdata->flags.ref_time){
1176 /* if this was a TIME REF frame we should reset the cul bytes field */
1177 cum_bytes = fdata->pkt_len;
1178 fdata->cum_bytes = cum_bytes;
1180 /* increase cum_bytes with this packets length */
1181 cum_bytes += fdata->pkt_len;
1184 #ifndef NEW_PACKET_LIST
1185 epan_dissect_fill_in_columns(&edt, TRUE);
1188 /* If we haven't yet seen the first frame, this is it.
1190 XXX - we must do this before we add the row to the display,
1191 as, if the display's GtkCList's selection mode is
1192 GTK_SELECTION_BROWSE, when the first entry is added to it,
1193 "cf_select_packet()" will be called, and it will fetch the row
1194 data for the 0th row, and will get a null pointer rather than
1195 "fdata", as "gtk_clist_append()" won't yet have returned and
1196 thus "gtk_clist_set_row_data()" won't yet have been called.
1198 We thus need to leave behind bread crumbs so that
1199 "cf_select_packet()" can find this frame. See the comment
1200 in "cf_select_packet()". */
1201 if (cf->first_displayed == NULL)
1202 cf->first_displayed = fdata;
1204 /* This is the last frame we've seen so far. */
1205 cf->last_displayed = fdata;
1207 #ifndef NEW_PACKET_LIST
1208 row = packet_list_append(cinfo->col_data, fdata);
1210 /* colorize packet: first apply color filters
1211 * then if packet is marked, use preferences to overwrite color
1212 * we do both to make sure that when a packet gets un-marked, the
1213 * color will be correctly set (fixes bug 2038)
1215 fdata->color_filter = color_filters_colorize_packet(row, &edt);
1216 if (fdata->flags.marked) {
1217 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
1219 #endif /* NEW_PACKET_LIST */
1221 /* Set the time of the previous displayed frame to the time of this
1223 prev_dis_ts = fdata->abs_ts;
1225 cf->displayed_count++;
1228 epan_dissect_cleanup(&edt);
1232 /* read in a new packet */
1233 /* returns the row of the new packet in the packet list or -1 if not displayed */
1235 read_packet(capture_file *cf, dfilter_t *dfcode,
1236 gboolean filtering_tap_listeners, guint tap_flags, gint64 offset)
1238 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1239 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
1240 const guchar *buf = wtap_buf_ptr(cf->wth);
1243 frame_data *plist_end;
1246 /* Allocate the next list entry, and add it to the list.
1247 * memory chunks have been deprecated in favor of the slice allocator,
1248 * which has been added in 2.10
1250 #if GLIB_CHECK_VERSION(2,10,0)
1251 fdata = g_slice_new(frame_data);
1253 fdata = g_mem_chunk_alloc(cf->plist_chunk);
1259 fdata->pkt_len = phdr->len;
1260 fdata->cap_len = phdr->caplen;
1261 fdata->file_off = offset;
1262 /* To save some memory, we coarcese it into a gint8 */
1263 g_assert(phdr->pkt_encap <= G_MAXINT8);
1264 fdata->lnk_t = (gint8) phdr->pkt_encap;
1265 fdata->flags.encoding = CHAR_ASCII;
1266 fdata->flags.visited = 0;
1267 fdata->flags.marked = 0;
1268 fdata->flags.ref_time = 0;
1269 fdata->color_filter = NULL;
1270 fdata->col_text = NULL;
1271 fdata->col_text_len = NULL;
1273 fdata->abs_ts.secs = phdr->ts.secs;
1274 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1276 if (cf->plist_end != NULL)
1277 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &cf->plist_end->abs_ts);
1279 nstime_set_zero(&fdata->del_cap_ts);
1284 epan_dissect_init(&edt, TRUE, FALSE);
1285 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1286 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1287 passed = dfilter_apply_edt(cf->rfcode, &edt);
1288 epan_dissect_cleanup(&edt);
1291 plist_end = cf->plist_end;
1292 fdata->prev = plist_end;
1293 if (plist_end != NULL)
1294 plist_end->next = fdata;
1297 cf->plist_end = fdata;
1300 cf->f_datalen = offset + phdr->caplen;
1301 fdata->num = cf->count;
1302 if (!cf->redissecting) {
1303 row = add_packet_to_packet_list(fdata, cf, dfcode,
1304 filtering_tap_listeners, tap_flags,
1305 pseudo_header, buf, TRUE, TRUE);
1308 /* XXX - if we didn't have read filters, or if we could avoid
1309 allocating the "frame_data" structure until we knew whether
1310 the frame passed the read filter, we could use a G_ALLOC_ONLY
1313 ...but, at least in one test I did, where I just made the chunk
1314 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1315 seem to save a noticeable amount of time or space. */
1316 #if GLIB_CHECK_VERSION(2,10,0)
1317 /* memory chunks have been deprecated in favor of the slice allocator,
1318 * which has been added in 2.10
1320 g_slice_free(frame_data,fdata);
1322 g_mem_chunk_free(cf->plist_chunk, fdata);
1330 cf_merge_files(char **out_filenamep, int in_file_count,
1331 char *const *in_filenames, int file_type, gboolean do_append)
1333 merge_in_file_t *in_files;
1339 int open_err, read_err, write_err, close_err;
1343 char errmsg_errno[1024+1];
1345 gboolean got_read_error = FALSE, got_write_error = FALSE;
1347 progdlg_t *progbar = NULL;
1349 gint64 f_len, file_pos;
1351 GTimeVal start_time;
1352 gchar status_str[100];
1353 gint64 progbar_nextstep;
1354 gint64 progbar_quantum;
1356 /* open the input files */
1357 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1358 &open_err, &err_info, &err_fileno)) {
1360 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1365 if (*out_filenamep != NULL) {
1366 out_filename = *out_filenamep;
1367 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1371 out_fd = create_tempfile(&tmpname, "wireshark");
1374 out_filename = g_strdup(tmpname);
1375 *out_filenamep = out_filename;
1379 merge_close_in_files(in_file_count, in_files);
1381 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1385 pdh = wtap_dump_fdopen(out_fd, file_type,
1386 merge_select_frame_type(in_file_count, in_files),
1387 merge_max_snapshot_length(in_file_count, in_files),
1388 FALSE /* compressed */, &open_err);
1391 merge_close_in_files(in_file_count, in_files);
1393 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1398 /* Get the sum of the sizes of all the files. */
1400 for (i = 0; i < in_file_count; i++)
1401 f_len += in_files[i].size;
1403 /* Update the progress bar when it gets to this value. */
1404 progbar_nextstep = 0;
1405 /* When we reach the value that triggers a progress bar update,
1406 bump that value by this amount. */
1407 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1408 /* Progress so far. */
1412 g_get_current_time(&start_time);
1414 /* do the merge (or append) */
1417 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1420 wth = merge_read_packet(in_file_count, in_files, &read_err,
1424 got_read_error = TRUE;
1428 /* Get the sum of the data offsets in all of the files. */
1430 for (i = 0; i < in_file_count; i++)
1431 data_offset += in_files[i].data_offset;
1433 /* Create the progress bar if necessary.
1434 We check on every iteration of the loop, so that it takes no
1435 longer than the standard time to create it (otherwise, for a
1436 large file, we might take considerably longer than that standard
1437 time in order to get to the next progress bar step). */
1438 if (progbar == NULL) {
1439 progbar = delayed_create_progress_dlg("Merging", "files",
1440 FALSE, &stop_flag, &start_time, progbar_val);
1443 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1444 when we update it, we have to run the GTK+ main loop to get it
1445 to repaint what's pending, and doing so may involve an "ioctl()"
1446 to see if there's any pending input from an X server, and doing
1447 that for every packet can be costly, especially on a big file. */
1448 if (data_offset >= progbar_nextstep) {
1449 /* Get the sum of the seek positions in all of the files. */
1451 for (i = 0; i < in_file_count; i++)
1452 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1453 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1454 if (progbar_val > 1.0f) {
1455 /* Some file probably grew while we were reading it.
1456 That "shouldn't happen", so we'll just clip the progress
1460 if (progbar != NULL) {
1461 g_snprintf(status_str, sizeof(status_str),
1462 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1463 file_pos / 1024, f_len / 1024);
1464 update_progress_dlg(progbar, progbar_val, status_str);
1466 progbar_nextstep += progbar_quantum;
1470 /* Well, the user decided to abort the merge. */
1474 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1475 wtap_buf_ptr(wth), &write_err)) {
1476 got_write_error = TRUE;
1481 /* We're done merging the files; destroy the progress bar if it was created. */
1482 if (progbar != NULL)
1483 destroy_progress_dlg(progbar);
1485 merge_close_in_files(in_file_count, in_files);
1486 if (!got_read_error && !got_write_error) {
1487 if (!wtap_dump_close(pdh, &write_err))
1488 got_write_error = TRUE;
1490 wtap_dump_close(pdh, &close_err);
1492 if (got_read_error) {
1494 * Find the file on which we got the error, and report the error.
1496 for (i = 0; i < in_file_count; i++) {
1497 if (in_files[i].state == GOT_ERROR) {
1498 /* Put up a message box noting that a read failed somewhere along
1502 case WTAP_ERR_UNSUPPORTED_ENCAP:
1503 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1504 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1507 errmsg = errmsg_errno;
1510 case WTAP_ERR_CANT_READ:
1511 errmsg = "An attempt to read from the capture file %s failed for"
1512 " some unknown reason.";
1515 case WTAP_ERR_SHORT_READ:
1516 errmsg = "The capture file %s appears to have been cut short"
1517 " in the middle of a packet.";
1520 case WTAP_ERR_BAD_RECORD:
1521 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1522 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1525 errmsg = errmsg_errno;
1529 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1530 "An error occurred while reading the"
1531 " capture file %%s: %s.", wtap_strerror(read_err));
1532 errmsg = errmsg_errno;
1535 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1540 if (got_write_error) {
1541 /* Put up an alert box for the write error. */
1542 cf_write_failure_alert_box(out_filename, write_err);
1545 if (got_read_error || got_write_error || stop_flag) {
1546 /* Callers aren't expected to treat an error or an explicit abort
1547 differently - we put up error dialogs ourselves, so they don't
1555 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1557 const char *filter_new = dftext ? dftext : "";
1558 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1561 /* if new filter equals old one, do nothing unless told to do so */
1562 if (!force && strcmp(filter_new, filter_old) == 0) {
1568 if (dftext == NULL) {
1569 /* The new filter is an empty filter (i.e., display all packets).
1570 * so leave dfcode==NULL
1574 * We have a filter; make a copy of it (as we'll be saving it),
1575 * and try to compile it.
1577 dftext = g_strdup(dftext);
1578 if (!dfilter_compile(dftext, &dfcode)) {
1579 /* The attempt failed; report an error. */
1580 gchar *safe_dftext = simple_dialog_format_message(dftext);
1581 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1583 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1586 "The following display filter isn't a valid display filter:\n%s\n"
1587 "See the help for a description of the display filter syntax.",
1588 simple_dialog_primary_start(), safe_dfilter_error_msg,
1589 simple_dialog_primary_end(), safe_dftext);
1590 g_free(safe_dfilter_error_msg);
1591 g_free(safe_dftext);
1597 if (dfcode == NULL) {
1598 /* Yes - free the filter text, and set it to null. */
1604 /* We have a valid filter. Replace the current filter. */
1605 g_free(cf->dfilter);
1606 cf->dfilter = dftext;
1608 /* Now rescan the packet list, applying the new filter, but not
1609 throwing away information constructed on a previous pass. */
1610 if (dftext == NULL) {
1611 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1613 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1616 /* Cleanup and release all dfilter resources */
1617 if (dfcode != NULL){
1618 dfilter_free(dfcode);
1624 cf_colorize_packets(capture_file *cf)
1626 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1630 cf_reftime_packets(capture_file *cf)
1633 #ifdef NEW_PACKET_LIST
1634 ref_time_packets(cf);
1636 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1641 cf_redissect_packets(capture_file *cf)
1643 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1646 /* Rescan the list of packets, reconstructing the CList.
1648 "action" describes why we're doing this; it's used in the progress
1651 "action_item" describes what we're doing; it's used in the progress
1654 "refilter" is TRUE if we need to re-evaluate the filter expression.
1656 "redissect" is TRUE if we need to make the dissectors reconstruct
1657 any state information they have (because a preference that affects
1658 some dissector has changed, meaning some dissector might construct
1659 its state differently from the way it was constructed the last time). */
1661 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1662 gboolean refilter, gboolean redissect)
1665 progdlg_t *progbar = NULL;
1670 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1671 int selected_row, prev_row, preceding_row, following_row;
1672 gboolean selected_frame_seen;
1675 GTimeVal start_time;
1676 gchar status_str[100];
1677 int progbar_nextstep;
1678 int progbar_quantum;
1680 gboolean filtering_tap_listeners;
1682 #ifdef NEW_PACKET_LIST
1683 gboolean add_to_packet_list = FALSE;
1685 gboolean add_to_packet_list = TRUE;
1688 /* Compile the current display filter.
1689 * We assume this will not fail since cf->dfilter is only set in
1690 * cf_filter IFF the filter was valid.
1694 dfilter_compile(cf->dfilter, &dfcode);
1697 /* Do we have any tap listeners with filters? */
1698 filtering_tap_listeners = have_filtering_tap_listeners();
1700 /* Get the union of the flags for all tap listeners. */
1701 tap_flags = union_of_tap_listener_flags();
1704 reset_tap_listeners();
1705 /* Which frame, if any, is the currently selected frame?
1706 XXX - should the selected frame or the focus frame be the "current"
1707 frame, that frame being the one from which "Find Frame" searches
1709 selected_frame = cf->current_frame;
1711 /* We don't yet know what row that frame will be on, if any, after we
1712 rebuild the clist, however. */
1715 /* Freeze the packet list while we redo it, so we don't get any
1716 screen updates while it happens. */
1717 #ifdef NEW_PACKET_LIST
1718 new_packet_list_freeze();
1720 packet_list_freeze();
1723 packet_list_clear();
1727 /* We need to re-initialize all the state information that protocols
1728 keep, because some preference that controls a dissector has changed,
1729 which might cause the state information to be constructed differently
1730 by that dissector. */
1732 /* We might receive new packets while redissecting, and we don't
1733 want to dissect those before their time. */
1734 cf->redissecting = TRUE;
1736 /* Cleanup all data structures used for dissection. */
1737 cleanup_dissection();
1738 /* Initialize all data structures used for dissection. */
1741 #ifdef NEW_PACKET_LIST
1742 /* We need to redissect the packets so we have to discard our old
1743 * packet list store. */
1744 new_packet_list_clear();
1745 add_to_packet_list = TRUE;
1749 /* We don't yet know which will be the first and last frames displayed. */
1750 cf->first_displayed = NULL;
1751 cf->last_displayed = NULL;
1753 /* We currently don't display any packets */
1754 cf->displayed_count = 0;
1756 /* Iterate through the list of frames. Call a routine for each frame
1757 to check whether it should be displayed and, if so, add it to
1758 the display list. */
1759 nstime_set_unset(&first_ts);
1760 nstime_set_unset(&prev_dis_ts);
1762 /* Update the progress bar when it gets to this value. */
1763 progbar_nextstep = 0;
1764 /* When we reach the value that triggers a progress bar update,
1765 bump that value by this amount. */
1766 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1767 /* Count of packets at which we've looked. */
1769 /* Progress so far. */
1773 g_get_current_time(&start_time);
1775 row = -1; /* no previous row yet */
1780 preceding_frame = NULL;
1782 following_frame = NULL;
1784 selected_frame_seen = FALSE;
1786 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1787 /* Create the progress bar if necessary.
1788 We check on every iteration of the loop, so that it takes no
1789 longer than the standard time to create it (otherwise, for a
1790 large file, we might take considerably longer than that standard
1791 time in order to get to the next progress bar step). */
1792 if (progbar == NULL)
1793 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1794 &stop_flag, &start_time,
1797 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1798 when we update it, we have to run the GTK+ main loop to get it
1799 to repaint what's pending, and doing so may involve an "ioctl()"
1800 to see if there's any pending input from an X server, and doing
1801 that for every packet can be costly, especially on a big file. */
1802 if (count >= progbar_nextstep) {
1803 /* let's not divide by zero. I should never be started
1804 * with count == 0, so let's assert that
1806 g_assert(cf->count > 0);
1807 progbar_val = (gfloat) count / cf->count;
1809 if (progbar != NULL) {
1810 g_snprintf(status_str, sizeof(status_str),
1811 "%4u of %u frames", count, cf->count);
1812 update_progress_dlg(progbar, progbar_val, status_str);
1815 progbar_nextstep += progbar_quantum;
1819 /* Well, the user decided to abort the filtering. Just stop.
1821 XXX - go back to the previous filter? Users probably just
1822 want not to wait for a filtering operation to finish;
1823 unless we cancel by having no filter, reverting to the
1824 previous filter will probably be even more expensive than
1825 continuing the filtering, as it involves going back to the
1826 beginning and filtering, and even with no filter we currently
1827 have to re-generate the entire clist, which is also expensive.
1829 I'm not sure what Network Monitor does, but it doesn't appear
1830 to give you an unfiltered display if you cancel. */
1837 /* Since all state for the frame was destroyed, mark the frame
1838 * as not visited, free the GSList referring to the state
1839 * data (the per-frame data itself was freed by
1840 * "init_dissection()"), and null out the GSList pointer. */
1841 fdata->flags.visited = 0;
1843 g_slist_free(fdata->pfd);
1848 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1849 cf->pd, fdata->cap_len, &err, &err_info)) {
1850 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1851 cf_read_error_message(err, err_info), cf->filename);
1855 /* If the previous frame is displayed, and we haven't yet seen the
1856 selected frame, remember that frame - it's the closest one we've
1857 yet seen before the selected frame. */
1858 if (prev_row != -1 && !selected_frame_seen) {
1859 preceding_row = prev_row;
1860 preceding_frame = prev_frame;
1862 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1863 tap_flags, &cf->pseudo_header, cf->pd,
1865 add_to_packet_list);
1867 /* If this frame is displayed, and this is the first frame we've
1868 seen displayed after the selected frame, remember this frame -
1869 it's the closest one we've yet seen at or after the selected
1871 if (row != -1 && selected_frame_seen && following_row == -1) {
1872 following_row = row;
1873 following_frame = fdata;
1875 if (fdata == selected_frame) {
1877 selected_frame_seen = TRUE;
1880 /* Remember this row/frame - it'll be the previous row/frame
1881 on the next pass through the loop. */
1886 /* We are done redissecting the packet list. */
1887 cf->redissecting = FALSE;
1889 #ifndef NEW_PACKET_LIST
1890 /* Re-sort the list using the previously selected order */
1891 packet_list_set_sort_column();
1895 /* Clear out what remains of the visited flags and per-frame data
1898 XXX - that may cause various forms of bogosity when dissecting
1899 these frames, as they won't have been seen by this sequential
1900 pass, but the only alternative I see is to keep scanning them
1901 even though the user requested that the scan stop, and that
1902 would leave the user stuck with an Wireshark grinding on
1903 until it finishes. Should we just stick them with that? */
1904 for (; fdata != NULL; fdata = fdata->next) {
1905 fdata->flags.visited = 0;
1907 g_slist_free(fdata->pfd);
1913 /* We're done filtering the packets; destroy the progress bar if it
1915 if (progbar != NULL)
1916 destroy_progress_dlg(progbar);
1918 /* Unfreeze the packet list. */
1919 #ifdef NEW_PACKET_LIST
1920 if (!add_to_packet_list)
1921 new_packet_list_recreate_visible_rows();
1922 new_packet_list_thaw();
1927 if (selected_row == -1) {
1928 /* The selected frame didn't pass the filter. */
1929 if (selected_frame == NULL) {
1930 /* That's because there *was* no selected frame. Make the first
1931 displayed frame the current frame. */
1934 /* Find the nearest displayed frame to the selected frame (whether
1935 it's before or after that frame) and make that the current frame.
1936 If the next and previous displayed frames are equidistant from the
1937 selected frame, choose the next one. */
1938 g_assert(following_frame == NULL ||
1939 following_frame->num >= selected_frame->num);
1940 g_assert(preceding_frame == NULL ||
1941 preceding_frame->num <= selected_frame->num);
1942 if (following_frame == NULL) {
1943 /* No frame after the selected frame passed the filter, so we
1944 have to select the last displayed frame before the selected
1946 selected_row = preceding_row;
1947 } else if (preceding_frame == NULL) {
1948 /* No frame before the selected frame passed the filter, so we
1949 have to select the first displayed frame after the selected
1951 selected_row = following_row;
1953 /* Frames before and after the selected frame passed the filter, so
1954 we'll select the previous frame */
1955 selected_row = preceding_row;
1960 if (selected_row == -1) {
1961 /* There are no frames displayed at all. */
1962 cf_unselect_packet(cf);
1964 #ifndef NEW_PACKET_LIST
1965 /* Either the frame that was selected passed the filter, or we've
1966 found the nearest displayed frame to that frame. Select it, make
1967 it the focus row, and make it visible. */
1968 if (selected_row == 0) {
1969 /* Set to invalid to force update of packet list and packet details */
1970 cf->current_row = -1;
1972 packet_list_set_selected_row(selected_row);
1973 #endif /* NEW_PACKET_LIST */
1976 /* Cleanup and release all dfilter resources */
1977 if (dfcode != NULL){
1978 dfilter_free(dfcode);
1982 * Scan trough all frame data and recalculate the ref time
1983 * without rereading the file.
1984 * XXX - do we need a progres bar or is this fast enough?
1986 #ifdef NEW_PACKET_LIST
1988 ref_time_packets(capture_file *cf)
1994 nstime_set_unset(&first_ts);
1995 nstime_set_unset(&prev_dis_ts);
1998 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2000 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2001 /* just add some value here until we know if it is being displayed or not */
2002 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2004 /* If we don't have the time stamp of the first packet in the
2005 capture, it's because this is the first packet. Save the time
2006 stamp of this packet as the time stamp of the first packet. */
2007 if (nstime_is_unset(&first_ts)) {
2008 first_ts = fdata->abs_ts;
2010 /* if this frames is marked as a reference time frame, reset
2011 firstsec and firstusec to this frame */
2012 if(fdata->flags.ref_time){
2013 first_ts = fdata->abs_ts;
2016 /* If we don't have the time stamp of the previous displayed packet,
2017 it's because this is the first displayed packet. Save the time
2018 stamp of this packet as the time stamp of the previous displayed
2020 if (nstime_is_unset(&prev_dis_ts)) {
2021 prev_dis_ts = fdata->abs_ts;
2024 /* Get the time elapsed between the first packet and this packet. */
2025 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2027 /* If it's greater than the current elapsed time, set the elapsed time
2028 to it (we check for "greater than" so as not to be confused by
2029 time moving backwards). */
2030 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2031 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2032 cf->elapsed_time = fdata->rel_ts;
2035 /* Get the time elapsed between the previous displayed packet and
2037 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2039 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2040 /* This frame either passed the display filter list or is marked as
2041 a time reference frame. All time reference frames are displayed
2042 even if they dont pass the display filter */
2043 if(fdata->flags.ref_time){
2044 /* if this was a TIME REF frame we should reset the cul bytes field */
2045 cum_bytes = fdata->pkt_len;
2046 fdata->cum_bytes = cum_bytes;
2048 /* increase cum_bytes with this packets length */
2049 cum_bytes += fdata->pkt_len;
2062 process_specified_packets(capture_file *cf, packet_range_t *range,
2063 const char *string1, const char *string2, gboolean terminate_is_stop,
2064 gboolean (*callback)(capture_file *, frame_data *,
2065 union wtap_pseudo_header *, const guint8 *, void *),
2066 void *callback_args)
2071 union wtap_pseudo_header pseudo_header;
2072 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2073 psp_return_t ret = PSP_FINISHED;
2075 progdlg_t *progbar = NULL;
2078 gboolean progbar_stop_flag;
2079 GTimeVal progbar_start_time;
2080 gchar progbar_status_str[100];
2081 int progbar_nextstep;
2082 int progbar_quantum;
2083 range_process_e process_this;
2085 /* Update the progress bar when it gets to this value. */
2086 progbar_nextstep = 0;
2087 /* When we reach the value that triggers a progress bar update,
2088 bump that value by this amount. */
2089 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2090 /* Count of packets at which we've looked. */
2092 /* Progress so far. */
2095 progbar_stop_flag = FALSE;
2096 g_get_current_time(&progbar_start_time);
2098 packet_range_process_init(range);
2100 /* Iterate through the list of packets, printing the packets that
2101 were selected by the current display filter. */
2102 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2103 /* Create the progress bar if necessary.
2104 We check on every iteration of the loop, so that it takes no
2105 longer than the standard time to create it (otherwise, for a
2106 large file, we might take considerably longer than that standard
2107 time in order to get to the next progress bar step). */
2108 if (progbar == NULL)
2109 progbar = delayed_create_progress_dlg(string1, string2,
2112 &progbar_start_time,
2115 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2116 when we update it, we have to run the GTK+ main loop to get it
2117 to repaint what's pending, and doing so may involve an "ioctl()"
2118 to see if there's any pending input from an X server, and doing
2119 that for every packet can be costly, especially on a big file. */
2120 if (progbar_count >= progbar_nextstep) {
2121 /* let's not divide by zero. I should never be started
2122 * with count == 0, so let's assert that
2124 g_assert(cf->count > 0);
2125 progbar_val = (gfloat) progbar_count / cf->count;
2127 if (progbar != NULL) {
2128 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2129 "%4u of %u packets", progbar_count, cf->count);
2130 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2133 progbar_nextstep += progbar_quantum;
2136 if (progbar_stop_flag) {
2137 /* Well, the user decided to abort the operation. Just stop,
2138 and arrange to return PSP_STOPPED to our caller, so they know
2139 it was stopped explicitly. */
2146 /* do we have to process this packet? */
2147 process_this = packet_range_process_packet(range, fdata);
2148 if (process_this == range_process_next) {
2149 /* this packet uninteresting, continue with next one */
2151 } else if (process_this == range_processing_finished) {
2152 /* all interesting packets processed, stop the loop */
2156 /* Get the packet */
2157 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2158 pd, fdata->cap_len, &err, &err_info)) {
2159 /* Attempt to get the packet failed. */
2160 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2161 cf_read_error_message(err, err_info), cf->filename);
2165 /* Process the packet */
2166 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2167 /* Callback failed. We assume it reported the error appropriately. */
2173 /* We're done printing the packets; destroy the progress bar if
2175 if (progbar != NULL)
2176 destroy_progress_dlg(progbar);
2182 gboolean construct_protocol_tree;
2184 } retap_callback_args_t;
2187 retap_packet(capture_file *cf _U_, frame_data *fdata,
2188 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2191 retap_callback_args_t *args = argsp;
2194 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2195 tap_queue_init(&edt);
2196 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2197 tap_push_tapped_queue(&edt);
2198 epan_dissect_cleanup(&edt);
2204 cf_retap_packets(capture_file *cf)
2206 packet_range_t range;
2207 retap_callback_args_t callback_args;
2208 gboolean filtering_tap_listeners;
2211 /* Do we have any tap listeners with filters? */
2212 filtering_tap_listeners = have_filtering_tap_listeners();
2214 tap_flags = union_of_tap_listener_flags();
2216 /* If any tap listeners have filters, or require the protocol tree,
2217 construct the protocol tree. */
2218 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2219 (tap_flags & TL_REQUIRES_PROTO_TREE);
2221 /* If any tap listeners require the columns, construct them. */
2222 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2224 /* Reset the tap listeners. */
2225 reset_tap_listeners();
2227 /* Iterate through the list of packets, dissecting all packets and
2228 re-running the taps. */
2229 packet_range_init(&range);
2230 packet_range_process_init(&range);
2231 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2232 "all packets", TRUE, retap_packet,
2235 /* Completed successfully. */
2239 /* Well, the user decided to abort the refiltering.
2240 Return CF_READ_ABORTED so our caller knows they did that. */
2241 return CF_READ_ABORTED;
2244 /* Error while retapping. */
2245 return CF_READ_ERROR;
2248 g_assert_not_reached();
2253 print_args_t *print_args;
2254 gboolean print_header_line;
2255 char *header_line_buf;
2256 int header_line_buf_len;
2257 gboolean print_formfeed;
2258 gboolean print_separator;
2262 } print_callback_args_t;
2265 print_packet(capture_file *cf, frame_data *fdata,
2266 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2269 print_callback_args_t *args = argsp;
2276 gboolean proto_tree_needed;
2277 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2278 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2280 /* Create the protocol tree, and make it visible, if we're printing
2281 the dissection or the hex data.
2282 XXX - do we need it if we're just printing the hex data? */
2284 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2285 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2287 /* Fill in the column information if we're printing the summary
2289 if (args->print_args->print_summary) {
2290 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2291 epan_dissect_fill_in_columns(&edt, TRUE);
2293 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2295 if (args->print_formfeed) {
2296 if (!new_page(args->print_args->stream))
2299 if (args->print_separator) {
2300 if (!print_line(args->print_args->stream, 0, ""))
2306 * We generate bookmarks, if the output format supports them.
2307 * The name is "__frameN__".
2309 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2311 if (args->print_args->print_summary) {
2312 if (args->print_header_line) {
2313 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2315 args->print_header_line = FALSE; /* we might not need to print any more */
2317 cp = &args->line_buf[0];
2319 for (i = 0; i < cf->cinfo.num_cols; i++) {
2320 /* Find the length of the string for this column. */
2321 column_len = (int) strlen(cf->cinfo.col_data[i]);
2322 if (args->col_widths[i] > column_len)
2323 column_len = args->col_widths[i];
2325 /* Make sure there's room in the line buffer for the column; if not,
2326 double its length. */
2327 line_len += column_len + 1; /* "+1" for space */
2328 if (line_len > args->line_buf_len) {
2329 cp_off = (int) (cp - args->line_buf);
2330 args->line_buf_len = 2 * line_len;
2331 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2332 cp = args->line_buf + cp_off;
2335 /* Right-justify the packet number column. */
2336 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2337 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2339 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2341 if (i != cf->cinfo.num_cols - 1)
2347 * Generate a bookmark, using the summary line as the title.
2349 if (!print_bookmark(args->print_args->stream, bookmark_name,
2353 if (!print_line(args->print_args->stream, 0, args->line_buf))
2357 * Generate a bookmark, using "Frame N" as the title, as we're not
2358 * printing the summary line.
2360 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2361 if (!print_bookmark(args->print_args->stream, bookmark_name,
2364 } /* if (print_summary) */
2366 if (args->print_args->print_dissections != print_dissections_none) {
2367 if (args->print_args->print_summary) {
2368 /* Separate the summary line from the tree with a blank line. */
2369 if (!print_line(args->print_args->stream, 0, ""))
2373 /* Print the information in that tree. */
2374 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2377 /* Print a blank line if we print anything after this (aka more than one packet). */
2378 args->print_separator = TRUE;
2380 /* Print a header line if we print any more packet summaries */
2381 args->print_header_line = TRUE;
2384 if (args->print_args->print_hex) {
2385 /* Print the full packet data as hex. */
2386 if (!print_hex_data(args->print_args->stream, &edt))
2389 /* Print a blank line if we print anything after this (aka more than one packet). */
2390 args->print_separator = TRUE;
2392 /* Print a header line if we print any more packet summaries */
2393 args->print_header_line = TRUE;
2394 } /* if (args->print_args->print_dissections != print_dissections_none) */
2396 epan_dissect_cleanup(&edt);
2398 /* do we want to have a formfeed between each packet from now on? */
2399 if(args->print_args->print_formfeed) {
2400 args->print_formfeed = TRUE;
2406 epan_dissect_cleanup(&edt);
2411 cf_print_packets(capture_file *cf, print_args_t *print_args)
2414 print_callback_args_t callback_args;
2422 callback_args.print_args = print_args;
2423 callback_args.print_header_line = TRUE;
2424 callback_args.header_line_buf = NULL;
2425 callback_args.header_line_buf_len = 256;
2426 callback_args.print_formfeed = FALSE;
2427 callback_args.print_separator = FALSE;
2428 callback_args.line_buf = NULL;
2429 callback_args.line_buf_len = 256;
2430 callback_args.col_widths = NULL;
2432 if (!print_preamble(print_args->stream, cf->filename)) {
2433 destroy_print_stream(print_args->stream);
2434 return CF_PRINT_WRITE_ERROR;
2437 if (print_args->print_summary) {
2438 /* We're printing packet summaries. Allocate the header line buffer
2439 and get the column widths. */
2440 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2442 /* Find the widths for each of the columns - maximum of the
2443 width of the title and the width of the data - and construct
2444 a buffer with a line containing the column titles. */
2445 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2446 cp = &callback_args.header_line_buf[0];
2448 for (i = 0; i < cf->cinfo.num_cols; i++) {
2449 /* Don't pad the last column. */
2450 if (i == cf->cinfo.num_cols - 1)
2451 callback_args.col_widths[i] = 0;
2453 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2454 data_width = get_column_char_width(get_column_format(i));
2455 if (data_width > callback_args.col_widths[i])
2456 callback_args.col_widths[i] = data_width;
2459 /* Find the length of the string for this column. */
2460 column_len = (int) strlen(cf->cinfo.col_title[i]);
2461 if (callback_args.col_widths[i] > column_len)
2462 column_len = callback_args.col_widths[i];
2464 /* Make sure there's room in the line buffer for the column; if not,
2465 double its length. */
2466 line_len += column_len + 1; /* "+1" for space */
2467 if (line_len > callback_args.header_line_buf_len) {
2468 cp_off = (int) (cp - callback_args.header_line_buf);
2469 callback_args.header_line_buf_len = 2 * line_len;
2470 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2471 callback_args.header_line_buf_len + 1);
2472 cp = callback_args.header_line_buf + cp_off;
2475 /* Right-justify the packet number column. */
2476 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2477 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2479 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2481 if (i != cf->cinfo.num_cols - 1)
2486 /* Now start out the main line buffer with the same length as the
2487 header line buffer. */
2488 callback_args.line_buf_len = callback_args.header_line_buf_len;
2489 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2490 } /* if (print_summary) */
2492 /* Iterate through the list of packets, printing the packets we were
2494 ret = process_specified_packets(cf, &print_args->range, "Printing",
2495 "selected packets", TRUE, print_packet,
2498 g_free(callback_args.header_line_buf);
2499 g_free(callback_args.line_buf);
2500 g_free(callback_args.col_widths);
2505 /* Completed successfully. */
2509 /* Well, the user decided to abort the printing.
2511 XXX - note that what got generated before they did that
2512 will get printed if we're piping to a print program; we'd
2513 have to write to a file and then hand that to the print
2514 program to make it actually not print anything. */
2518 /* Error while printing.
2520 XXX - note that what got generated before they did that
2521 will get printed if we're piping to a print program; we'd
2522 have to write to a file and then hand that to the print
2523 program to make it actually not print anything. */
2524 destroy_print_stream(print_args->stream);
2525 return CF_PRINT_WRITE_ERROR;
2528 if (!print_finale(print_args->stream)) {
2529 destroy_print_stream(print_args->stream);
2530 return CF_PRINT_WRITE_ERROR;
2533 if (!destroy_print_stream(print_args->stream))
2534 return CF_PRINT_WRITE_ERROR;
2540 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2541 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2547 /* Create the protocol tree, but don't fill in the column information. */
2548 epan_dissect_init(&edt, TRUE, TRUE);
2549 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2551 /* Write out the information in that tree. */
2552 proto_tree_write_pdml(&edt, fh);
2554 epan_dissect_cleanup(&edt);
2560 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2565 fh = ws_fopen(print_args->file, "w");
2567 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2569 write_pdml_preamble(fh);
2572 return CF_PRINT_WRITE_ERROR;
2575 /* Iterate through the list of packets, printing the packets we were
2577 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2578 "selected packets", TRUE,
2579 write_pdml_packet, fh);
2584 /* Completed successfully. */
2588 /* Well, the user decided to abort the printing. */
2592 /* Error while printing. */
2594 return CF_PRINT_WRITE_ERROR;
2597 write_pdml_finale(fh);
2600 return CF_PRINT_WRITE_ERROR;
2603 /* XXX - check for an error */
2610 write_psml_packet(capture_file *cf, frame_data *fdata,
2611 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2616 gboolean proto_tree_needed;
2618 /* Fill in the column information, only create the protocol tree
2619 if having custom columns. */
2620 proto_tree_needed = have_custom_cols(&cf->cinfo);
2621 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2622 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2623 epan_dissect_fill_in_columns(&edt, TRUE);
2625 /* Write out the information in that tree. */
2626 proto_tree_write_psml(&edt, fh);
2628 epan_dissect_cleanup(&edt);
2634 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2639 fh = ws_fopen(print_args->file, "w");
2641 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2643 write_psml_preamble(fh);
2646 return CF_PRINT_WRITE_ERROR;
2649 /* Iterate through the list of packets, printing the packets we were
2651 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2652 "selected packets", TRUE,
2653 write_psml_packet, fh);
2658 /* Completed successfully. */
2662 /* Well, the user decided to abort the printing. */
2666 /* Error while printing. */
2668 return CF_PRINT_WRITE_ERROR;
2671 write_psml_finale(fh);
2674 return CF_PRINT_WRITE_ERROR;
2677 /* XXX - check for an error */
2684 write_csv_packet(capture_file *cf, frame_data *fdata,
2685 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2690 gboolean proto_tree_needed;
2692 /* Fill in the column information, only create the protocol tree
2693 if having custom columns. */
2694 proto_tree_needed = have_custom_cols(&cf->cinfo);
2695 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2696 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2697 epan_dissect_fill_in_columns(&edt, TRUE);
2699 /* Write out the information in that tree. */
2700 proto_tree_write_csv(&edt, fh);
2702 epan_dissect_cleanup(&edt);
2708 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2713 fh = ws_fopen(print_args->file, "w");
2715 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2717 write_csv_preamble(fh);
2720 return CF_PRINT_WRITE_ERROR;
2723 /* Iterate through the list of packets, printing the packets we were
2725 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2726 "selected packets", TRUE,
2727 write_csv_packet, fh);
2732 /* Completed successfully. */
2736 /* Well, the user decided to abort the printing. */
2740 /* Error while printing. */
2742 return CF_PRINT_WRITE_ERROR;
2745 write_csv_finale(fh);
2748 return CF_PRINT_WRITE_ERROR;
2751 /* XXX - check for an error */
2758 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2759 union wtap_pseudo_header *pseudo_header _U_,
2760 const guint8 *pd, void *argsp)
2764 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
2769 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2774 fh = ws_fopen(print_args->file, "w");
2777 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2779 write_carrays_preamble(fh);
2783 return CF_PRINT_WRITE_ERROR;
2786 /* Iterate through the list of packets, printing the packets we were
2788 ret = process_specified_packets(cf, &print_args->range,
2790 "selected packets", TRUE,
2791 write_carrays_packet, fh);
2794 /* Completed successfully. */
2797 /* Well, the user decided to abort the printing. */
2800 /* Error while printing. */
2802 return CF_PRINT_WRITE_ERROR;
2805 write_carrays_finale(fh);
2809 return CF_PRINT_WRITE_ERROR;
2816 /* Scan through the packet list and change all columns that use the
2817 "command-line-specified" time stamp format to use the current
2818 value of that format. */
2820 cf_change_time_formats(capture_file *cf)
2823 progdlg_t *progbar = NULL;
2829 GTimeVal start_time;
2830 gchar status_str[100];
2831 int progbar_nextstep;
2832 int progbar_quantum;
2833 gboolean sorted_by_frame_column;
2836 /* adjust timestamp precision if auto is selected */
2837 cf_timestamp_auto_precision(cf);
2839 /* Are there any columns with time stamps in the "command-line-specified"
2842 XXX - we have to force the "column is writable" flag on, as it
2843 might be off from the last frame that was dissected. */
2844 col_set_writable(&cf->cinfo, TRUE);
2845 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
2846 !check_col(&cf->cinfo, COL_ABS_TIME) &&
2847 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
2848 !check_col(&cf->cinfo, COL_REL_TIME) &&
2849 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
2850 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
2851 /* No, there aren't any columns in that format, so we have no work
2856 /* Freeze the packet list while we redo it, so we don't get any
2857 screen updates while it happens. */
2858 #ifdef NEW_PACKET_LIST
2859 new_packet_list_freeze();
2861 packet_list_freeze();
2864 /* Update the progress bar when it gets to this value. */
2865 progbar_nextstep = 0;
2866 /* When we reach the value that triggers a progress bar update,
2867 bump that value by this amount. */
2868 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2869 /* Count of packets at which we've looked. */
2871 /* Progress so far. */
2874 /* If the rows are currently sorted by the frame column then we know
2875 * the row number of each packet: it's the row number of the previously
2876 * displayed packet + 1.
2878 * Otherwise, if the display is sorted by a different column then we have
2879 * to use the O(N) packet_list_find_row_from_data() (thus making the job
2880 * of changing the time display format O(N**2)).
2882 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
2883 * the row number and walks that many elements down the clist to find
2884 * the appropriate element.)
2886 sorted_by_frame_column = FALSE;
2887 for (i = 0; i < cf->cinfo.num_cols; i++) {
2888 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2890 #ifndef NEW_PACKET_LIST
2891 sorted_by_frame_column = (i == packet_list_get_sort_column());
2898 g_get_current_time(&start_time);
2900 /* Iterate through the list of packets, checking whether the packet
2901 is in a row of the summary list and, if so, whether there are
2902 any columns that show the time in the "command-line-specified"
2903 format and, if so, update that row. */
2904 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
2905 /* Create the progress bar if necessary.
2906 We check on every iteration of the loop, so that it takes no
2907 longer than the standard time to create it (otherwise, for a
2908 large file, we might take considerably longer than that standard
2909 time in order to get to the next progress bar step). */
2910 if (progbar == NULL)
2911 progbar = delayed_create_progress_dlg("Changing", "time display",
2912 TRUE, &stop_flag, &start_time, progbar_val);
2914 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2915 when we update it, we have to run the GTK+ main loop to get it
2916 to repaint what's pending, and doing so may involve an "ioctl()"
2917 to see if there's any pending input from an X server, and doing
2918 that for every packet can be costly, especially on a big file. */
2919 if (count >= progbar_nextstep) {
2920 /* let's not divide by zero. I should never be started
2921 * with count == 0, so let's assert that
2923 g_assert(cf->count > 0);
2925 progbar_val = (gfloat) count / cf->count;
2927 if (progbar != NULL) {
2928 g_snprintf(status_str, sizeof(status_str),
2929 "%4u of %u packets", count, cf->count);
2930 update_progress_dlg(progbar, progbar_val, status_str);
2933 progbar_nextstep += progbar_quantum;
2937 /* Well, the user decided to abort the redisplay. Just stop.
2939 XXX - this leaves the time field in the old format in
2940 frames we haven't yet processed. So it goes; should we
2941 simply not offer them the option of stopping? */
2947 /* Find what row this packet is in. */
2948 if (!sorted_by_frame_column) {
2949 /* This function is O(N), so we try to avoid using it... */
2950 #ifdef NEW_PACKET_LIST
2951 row = new_packet_list_find_row_from_data(fdata, FALSE);
2953 row = packet_list_find_row_from_data(fdata);
2956 /* ...which we do by maintaining a count of packets that are
2957 being displayed (i.e., that have passed the display filter),
2958 and using the current value of that count as the row number
2959 (which is why we can only do it when the display is sorted
2960 by the frame number). */
2961 if (fdata->flags.passed_dfilter)
2968 /* This packet is in the summary list, on row "row". */
2970 for (i = 0; i < cf->cinfo.num_cols; i++) {
2971 if (col_has_time_fmt(&cf->cinfo, i)) {
2972 /* This is one of the columns that shows the time in
2973 "command-line-specified" format; update it. */
2974 cf->cinfo.col_buf[i][0] = '\0';
2975 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
2976 #ifdef NEW_PACKET_LIST
2978 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
2985 /* We're done redisplaying the packets; destroy the progress bar if it
2987 if (progbar != NULL)
2988 destroy_progress_dlg(progbar);
2990 /* Set the column widths of those columns that show the time in
2991 "command-line-specified" format. */
2992 for (i = 0; i < cf->cinfo.num_cols; i++) {
2993 if (col_has_time_fmt(&cf->cinfo, i)) {
2994 #ifdef NEW_PACKET_LIST
2995 new_packet_list_set_time_width(i);
2997 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3002 /* Unfreeze the packet list. */
3003 #ifdef NEW_PACKET_LIST
3004 new_packet_list_thaw();
3014 gboolean frame_matched;
3018 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3022 mdata.string = string;
3023 mdata.string_len = strlen(string);
3024 return find_packet(cf, match_protocol_tree, &mdata);
3028 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3030 match_data *mdata = criterion;
3033 /* Construct the protocol tree, including the displayed text */
3034 epan_dissect_init(&edt, TRUE, TRUE);
3035 /* We don't need the column information */
3036 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3038 /* Iterate through all the nodes, seeing if they have text that matches. */
3040 mdata->frame_matched = FALSE;
3041 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3042 epan_dissect_cleanup(&edt);
3043 return mdata->frame_matched;
3047 match_subtree_text(proto_node *node, gpointer data)
3049 match_data *mdata = (match_data*) data;
3050 const gchar *string = mdata->string;
3051 size_t string_len = mdata->string_len;
3052 capture_file *cf = mdata->cf;
3053 field_info *fi = PNODE_FINFO(node);
3054 gchar label_str[ITEM_LABEL_LENGTH];
3061 g_assert(fi && "dissection with an invisible proto tree?");
3063 if (mdata->frame_matched) {
3064 /* We already had a match; don't bother doing any more work. */
3068 /* Don't match invisible entries. */
3069 if (PROTO_ITEM_IS_HIDDEN(node))
3072 /* was a free format label produced? */
3074 label_ptr = fi->rep->representation;
3076 /* no, make a generic label */
3077 label_ptr = label_str;
3078 proto_item_fill_label(fi, label_str);
3081 /* Does that label match? */
3082 label_len = strlen(label_ptr);
3083 for (i = 0; i < label_len; i++) {
3084 c_char = label_ptr[i];
3086 c_char = toupper(c_char);
3087 if (c_char == string[c_match]) {
3089 if (c_match == string_len) {
3090 /* No need to look further; we have a match */
3091 mdata->frame_matched = TRUE;
3098 /* Recurse into the subtree, if it exists */
3099 if (node->first_child != NULL)
3100 proto_tree_children_foreach(node, match_subtree_text, mdata);
3104 cf_find_packet_summary_line(capture_file *cf, const char *string)
3108 mdata.string = string;
3109 mdata.string_len = strlen(string);
3110 return find_packet(cf, match_summary_line, &mdata);
3114 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3116 match_data *mdata = criterion;
3117 const gchar *string = mdata->string;
3118 size_t string_len = mdata->string_len;
3120 const char *info_column;
3121 size_t info_column_len;
3122 gboolean frame_matched = FALSE;
3128 /* Don't bother constructing the protocol tree */
3129 epan_dissect_init(&edt, FALSE, FALSE);
3130 /* Get the column information */
3131 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3133 /* Find the Info column */
3134 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3135 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3136 /* Found it. See if we match. */
3137 info_column = edt.pi.cinfo->col_data[colx];
3138 info_column_len = strlen(info_column);
3139 for (i = 0; i < info_column_len; i++) {
3140 c_char = info_column[i];
3142 c_char = toupper(c_char);
3143 if (c_char == string[c_match]) {
3145 if (c_match == string_len) {
3146 frame_matched = TRUE;
3155 epan_dissect_cleanup(&edt);
3156 return frame_matched;
3162 } cbs_t; /* "Counted byte string" */
3165 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3170 info.data_len = string_size;
3172 /* String or hex search? */
3174 /* String search - what type of string? */
3175 switch (cf->scs_type) {
3177 case SCS_ASCII_AND_UNICODE:
3178 return find_packet(cf, match_ascii_and_unicode, &info);
3181 return find_packet(cf, match_ascii, &info);
3184 return find_packet(cf, match_unicode, &info);
3187 g_assert_not_reached();
3191 return find_packet(cf, match_binary, &info);
3195 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3197 cbs_t *info = criterion;
3198 const guint8 *ascii_text = info->data;
3199 size_t textlen = info->data_len;
3200 gboolean frame_matched;
3206 frame_matched = FALSE;
3207 buf_len = fdata->pkt_len;
3208 for (i = 0; i < buf_len; i++) {
3211 c_char = toupper(c_char);
3213 if (c_char == ascii_text[c_match]) {
3215 if (c_match == textlen) {
3216 frame_matched = TRUE;
3217 cf->search_pos = i; /* Save the position of the last character
3218 for highlighting the field. */
3225 return frame_matched;
3229 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3231 cbs_t *info = criterion;
3232 const guint8 *ascii_text = info->data;
3233 size_t textlen = info->data_len;
3234 gboolean frame_matched;
3240 frame_matched = FALSE;
3241 buf_len = fdata->pkt_len;
3242 for (i = 0; i < buf_len; i++) {
3245 c_char = toupper(c_char);
3246 if (c_char == ascii_text[c_match]) {
3248 if (c_match == textlen) {
3249 frame_matched = TRUE;
3250 cf->search_pos = i; /* Save the position of the last character
3251 for highlighting the field. */
3257 return frame_matched;
3261 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3263 cbs_t *info = criterion;
3264 const guint8 *ascii_text = info->data;
3265 size_t textlen = info->data_len;
3266 gboolean frame_matched;
3272 frame_matched = FALSE;
3273 buf_len = fdata->pkt_len;
3274 for (i = 0; i < buf_len; i++) {
3277 c_char = toupper(c_char);
3278 if (c_char == ascii_text[c_match]) {
3281 if (c_match == textlen) {
3282 frame_matched = TRUE;
3283 cf->search_pos = i; /* Save the position of the last character
3284 for highlighting the field. */
3290 return frame_matched;
3294 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3296 cbs_t *info = criterion;
3297 const guint8 *binary_data = info->data;
3298 size_t datalen = info->data_len;
3299 gboolean frame_matched;
3304 frame_matched = FALSE;
3305 buf_len = fdata->pkt_len;
3306 for (i = 0; i < buf_len; i++) {
3307 if (cf->pd[i] == binary_data[c_match]) {
3309 if (c_match == datalen) {
3310 frame_matched = TRUE;
3311 cf->search_pos = i; /* Save the position of the last character
3312 for highlighting the field. */
3318 return frame_matched;
3322 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3324 return find_packet(cf, match_dfilter, sfcode);
3328 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3330 dfilter_t *sfcode = criterion;
3332 gboolean frame_matched;
3334 epan_dissect_init(&edt, TRUE, FALSE);
3335 epan_dissect_prime_dfilter(&edt, sfcode);
3336 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3337 frame_matched = dfilter_apply_edt(sfcode, &edt);
3338 epan_dissect_cleanup(&edt);
3339 return frame_matched;
3343 find_packet(capture_file *cf,
3344 gboolean (*match_function)(capture_file *, frame_data *, void *),
3347 frame_data *start_fd;
3349 frame_data *new_fd = NULL;
3350 progdlg_t *progbar = NULL;
3357 GTimeVal start_time;
3358 gchar status_str[100];
3359 int progbar_nextstep;
3360 int progbar_quantum;
3363 start_fd = cf->current_frame;
3364 if (start_fd != NULL) {
3365 /* Iterate through the list of packets, starting at the packet we've
3366 picked, calling a routine to run the filter on the packet, see if
3367 it matches, and stop if so. */
3371 /* Update the progress bar when it gets to this value. */
3372 progbar_nextstep = 0;
3373 /* When we reach the value that triggers a progress bar update,
3374 bump that value by this amount. */
3375 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3376 /* Progress so far. */
3380 g_get_current_time(&start_time);
3383 title = cf->sfilter?cf->sfilter:"";
3385 /* Create the progress bar if necessary.
3386 We check on every iteration of the loop, so that it takes no
3387 longer than the standard time to create it (otherwise, for a
3388 large file, we might take considerably longer than that standard
3389 time in order to get to the next progress bar step). */
3390 if (progbar == NULL)
3391 progbar = delayed_create_progress_dlg("Searching", title,
3392 FALSE, &stop_flag, &start_time, progbar_val);
3394 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3395 when we update it, we have to run the GTK+ main loop to get it
3396 to repaint what's pending, and doing so may involve an "ioctl()"
3397 to see if there's any pending input from an X server, and doing
3398 that for every packet can be costly, especially on a big file. */
3399 if (count >= progbar_nextstep) {
3400 /* let's not divide by zero. I should never be started
3401 * with count == 0, so let's assert that
3403 g_assert(cf->count > 0);
3405 progbar_val = (gfloat) count / cf->count;
3407 if (progbar != NULL) {
3408 g_snprintf(status_str, sizeof(status_str),
3409 "%4u of %u packets", count, cf->count);
3410 update_progress_dlg(progbar, progbar_val, status_str);
3413 progbar_nextstep += progbar_quantum;
3417 /* Well, the user decided to abort the search. Go back to the
3418 frame where we started. */
3423 /* Go past the current frame. */
3424 if (cf->sbackward) {
3425 /* Go on to the previous frame. */
3426 fdata = fdata->prev;
3427 if (fdata == NULL) {
3429 * XXX - other apps have a bit more of a detailed message
3430 * for this, and instead of offering "OK" and "Cancel",
3431 * they offer things such as "Continue" and "Cancel";
3432 * we need an API for popping up alert boxes with
3433 * {Verb} and "Cancel".
3436 if (prefs.gui_find_wrap)
3438 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3439 "%sBeginning of capture exceeded!%s\n\n"
3440 "Search is continued from the end of the capture.",
3441 simple_dialog_primary_start(), simple_dialog_primary_end());
3442 fdata = cf->plist_end; /* wrap around */
3446 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3447 "%sBeginning of capture exceeded!%s\n\n"
3448 "Try searching forwards.",
3449 simple_dialog_primary_start(), simple_dialog_primary_end());
3450 fdata = start_fd; /* stay on previous packet */
3454 /* Go on to the next frame. */
3455 fdata = fdata->next;
3456 if (fdata == NULL) {
3457 if (prefs.gui_find_wrap)
3459 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3460 "%sEnd of capture exceeded!%s\n\n"
3461 "Search is continued from the start of the capture.",
3462 simple_dialog_primary_start(), simple_dialog_primary_end());
3463 fdata = cf->plist; /* wrap around */
3467 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3468 "%sEnd of capture exceeded!%s\n\n"
3469 "Try searching backwards.",
3470 simple_dialog_primary_start(), simple_dialog_primary_end());
3471 fdata = start_fd; /* stay on previous packet */
3478 /* Is this packet in the display? */
3479 if (fdata->flags.passed_dfilter) {
3480 /* Yes. Load its data. */
3481 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3482 cf->pd, fdata->cap_len, &err, &err_info)) {
3483 /* Read error. Report the error, and go back to the frame
3484 where we started. */
3485 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3486 cf_read_error_message(err, err_info), cf->filename);
3491 /* Does it match the search criterion? */
3492 if ((*match_function)(cf, fdata, criterion)) {
3494 break; /* found it! */
3498 if (fdata == start_fd) {
3499 /* We're back to the frame we were on originally, and that frame
3500 doesn't match the search filter. The search failed. */
3505 /* We're done scanning the packets; destroy the progress bar if it
3507 if (progbar != NULL)
3508 destroy_progress_dlg(progbar);
3511 if (new_fd != NULL) {
3512 #ifdef NEW_PACKET_LIST
3513 /* Find and select */
3514 row = new_packet_list_find_row_from_data(fdata, TRUE);
3516 /* We found a frame. Find what row it's in. */
3517 row = packet_list_find_row_from_data(new_fd);
3518 #endif /* NEW_PACKET_LIST */
3520 /* We didn't find a row even though we know that a frame
3521 * exists that satifies the search criteria. This means that the
3522 * frame isn't being displayed currently so we can't select it. */
3523 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3524 "%sEnd of capture exceeded!%s\n\n"
3525 "The capture file is probably not fully loaded.",
3526 simple_dialog_primary_start(), simple_dialog_primary_end());
3530 #ifndef NEW_PACKET_LIST
3531 /* Select that row, make it the focus row, and make it visible. */
3532 packet_list_set_selected_row(row);
3533 #endif /* NEW_PACKET_LIST */
3534 return TRUE; /* success */
3536 return FALSE; /* failure */
3540 cf_goto_frame(capture_file *cf, guint fnumber)
3545 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3548 if (fdata == NULL) {
3549 /* we didn't find a packet with that packet number */
3550 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3551 "There is no packet with the packet number %u.", fnumber);
3552 return FALSE; /* we failed to go to that packet */
3554 if (!fdata->flags.passed_dfilter) {
3555 /* that packet currently isn't displayed */
3556 /* XXX - add it to the set of displayed packets? */
3557 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3558 "The packet number %u isn't currently being displayed.", fnumber);
3559 return FALSE; /* we failed to go to that packet */
3562 #ifdef NEW_PACKET_LIST
3563 row = new_packet_list_find_row_from_data(fdata, TRUE);
3565 /* We found that packet, and it's currently being displayed.
3566 Find what row it's in. */
3567 row = packet_list_find_row_from_data(fdata);
3568 g_assert(row != -1);
3570 /* Select that row, make it the focus row, and make it visible. */
3571 packet_list_set_selected_row(row);
3572 #endif /* NEW_PACKET_LIST */
3573 return TRUE; /* we got to that packet */
3577 cf_goto_top_frame(capture_file *cf _U_)
3579 #ifdef NEW_PACKET_LIST
3580 /* Find and select */
3581 new_packet_list_select_first_row();
3585 frame_data *lowest_fdata = NULL;
3587 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3588 if (fdata->flags.passed_dfilter) {
3589 lowest_fdata = fdata;
3594 if (lowest_fdata == NULL) {
3598 /* We found that packet, and it's currently being displayed.
3599 Find what row it's in. */
3600 row = packet_list_find_row_from_data(lowest_fdata);
3601 g_assert(row != -1);
3603 /* Select that row, make it the focus row, and make it visible. */
3604 packet_list_set_selected_row(row);
3605 #endif /* NEW_PACKET_LIST */
3606 return TRUE; /* we got to that packet */
3610 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
3612 #ifdef NEW_PACKET_LIST
3613 /* Find and select */
3614 new_packet_list_select_last_row();
3618 frame_data *highest_fdata = NULL;
3620 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3621 if (fdata->flags.passed_dfilter) {
3622 highest_fdata = fdata;
3626 if (highest_fdata == NULL) {
3630 /* We found that packet, and it's currently being displayed.
3631 Find what row it's in. */
3632 row = packet_list_find_row_from_data(highest_fdata);
3633 g_assert(row != -1);
3635 /* Select that row, make it the focus row, and make it visible. */
3636 packet_list_set_selected_row(row);
3637 #endif /* NEW_PACKET_LIST */
3638 return TRUE; /* we got to that packet */
3642 * Go to frame specified by currently selected protocol tree item.
3645 cf_goto_framenum(capture_file *cf)
3647 header_field_info *hfinfo;
3650 if (cf->finfo_selected) {
3651 hfinfo = cf->finfo_selected->hfinfo;
3653 if (hfinfo->type == FT_FRAMENUM) {
3654 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3656 return cf_goto_frame(cf, framenum);
3663 /* Select the packet on a given row. */
3665 cf_select_packet(capture_file *cf, int row)
3671 /* Get the frame data struct pointer for this frame */
3672 #ifdef NEW_PACKET_LIST
3673 fdata = new_packet_list_get_row_data(row);
3675 fdata = (frame_data *)packet_list_get_row_data(row);
3678 if (fdata == NULL) {
3679 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3680 the first entry is added to it by "real_insert_row()", that row
3681 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3682 our version and the vanilla GTK+ version).
3684 This means that a "select-row" signal is emitted; this causes
3685 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3688 "cf_select_packet()" fetches, above, the data associated with the
3689 row that was selected; however, as "gtk_clist_append()", which
3690 called "real_insert_row()", hasn't yet returned, we haven't yet
3691 associated any data with that row, so we get back a null pointer.
3693 We can't assume that there's only one frame in the frame list,
3694 either, as we may be filtering the display.
3696 We therefore assume that, if "row" is 0, i.e. the first row
3697 is being selected, and "cf->first_displayed" equals
3698 "cf->last_displayed", i.e. there's only one frame being
3699 displayed, that frame is the frame we want.
3701 This means we have to set "cf->first_displayed" and
3702 "cf->last_displayed" before adding the row to the
3703 GtkCList; see the comment in "add_packet_to_packet_list()". */
3705 if (row == 0 && cf->first_displayed == cf->last_displayed)
3706 fdata = cf->first_displayed;
3709 /* If fdata _still_ isn't set simply give up. */
3710 if (fdata == NULL) {
3714 /* Get the data in that frame. */
3715 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
3716 cf->pd, fdata->cap_len, &err, &err_info)) {
3717 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3718 cf_read_error_message(err, err_info), cf->filename);
3722 /* Record that this frame is the current frame. */
3723 cf->current_frame = fdata;
3724 cf->current_row = row;
3726 /* Create the logical protocol tree. */
3727 if (cf->edt != NULL)
3728 epan_dissect_free(cf->edt);
3730 /* We don't need the columns here. */
3731 cf->edt = epan_dissect_new(TRUE, TRUE);
3733 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3736 dfilter_macro_build_ftv_cache(cf->edt->tree);
3738 cf_callback_invoke(cf_cb_packet_selected, cf);
3741 /* Unselect the selected packet, if any. */
3743 cf_unselect_packet(capture_file *cf)
3745 /* Destroy the epan_dissect_t for the unselected packet. */
3746 if (cf->edt != NULL) {
3747 epan_dissect_free(cf->edt);
3751 /* No packet is selected. */
3752 cf->current_frame = NULL;
3753 cf->current_row = 0;
3755 cf_callback_invoke(cf_cb_packet_unselected, cf);
3757 /* No protocol tree means no selected field. */
3758 cf_unselect_field(cf);
3761 /* Unset the selected protocol tree field, if any. */
3763 cf_unselect_field(capture_file *cf)
3765 cf->finfo_selected = NULL;
3767 cf_callback_invoke(cf_cb_field_unselected, cf);
3771 * Mark a particular frame.
3774 cf_mark_frame(capture_file *cf, frame_data *frame)
3776 if (! frame->flags.marked) {
3777 frame->flags.marked = TRUE;
3778 if (cf->count > cf->marked_count)
3784 * Unmark a particular frame.
3787 cf_unmark_frame(capture_file *cf, frame_data *frame)
3789 if (frame->flags.marked) {
3790 frame->flags.marked = FALSE;
3791 if (cf->marked_count > 0)
3799 } save_callback_args_t;
3802 * Save a capture to a file, in a particular format, saving either
3803 * all packets, all currently-displayed packets, or all marked packets.
3805 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3806 * up a message box for the failure.
3809 save_packet(capture_file *cf _U_, frame_data *fdata,
3810 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3813 save_callback_args_t *args = argsp;
3814 struct wtap_pkthdr hdr;
3817 /* init the wtap header for saving */
3818 hdr.ts.secs = fdata->abs_ts.secs;
3819 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3820 hdr.caplen = fdata->cap_len;
3821 hdr.len = fdata->pkt_len;
3822 hdr.pkt_encap = fdata->lnk_t;
3824 /* and save the packet */
3825 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3826 cf_write_failure_alert_box(args->fname, err);
3833 * Can this capture file be saved in any format except by copying the raw data?
3836 cf_can_save_as(capture_file *cf)
3840 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3841 /* To save a file with Wiretap, Wiretap has to handle that format,
3842 and its code to handle that format must be able to write a file
3843 with this file's encapsulation type. */
3844 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3845 /* OK, we can write it out in this type. */
3850 /* No, we couldn't save it in any format. */
3855 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3857 gchar *from_filename;
3861 save_callback_args_t callback_args;
3863 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
3865 /* don't write over an existing file. */
3866 /* this should've been already checked by our caller, just to be sure... */
3867 if (file_exists(fname)) {
3868 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3869 "%sCapture file: \"%s\" already exists!%s\n\n"
3870 "Please choose a different filename.",
3871 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3875 packet_range_process_init(range);
3878 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3879 /* We're not filtering packets, and we're saving it in the format
3880 it's already in, so we can just move or copy the raw data. */
3882 if (cf->is_tempfile) {
3883 /* The file being saved is a temporary file from a live
3884 capture, so it doesn't need to stay around under that name;
3885 first, try renaming the capture buffer file to the new name. */
3887 if (ws_rename(cf->filename, fname) == 0) {
3888 /* That succeeded - there's no need to copy the source file. */
3889 from_filename = NULL;
3892 if (errno == EXDEV) {
3893 /* They're on different file systems, so we have to copy the
3896 from_filename = cf->filename;
3898 /* The rename failed, but not because they're on different
3899 file systems - put up an error message. (Or should we
3900 just punt and try to copy? The only reason why I'd
3901 expect the rename to fail and the copy to succeed would
3902 be if we didn't have permission to remove the file from
3903 the temporary directory, and that might be fixable - but
3904 is it worth requiring the user to go off and fix it?) */
3905 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3906 file_rename_error_message(errno), fname);
3912 from_filename = cf->filename;
3915 /* It's a permanent file, so we should copy it, and not remove the
3918 from_filename = cf->filename;
3922 /* Copy the file, if we haven't moved it. */
3923 if (!copy_file_binary_mode(from_filename, fname))
3927 /* Either we're filtering packets, or we're saving in a different
3928 format; we can't do that by copying or moving the capture file,
3929 we have to do it by writing the packets out in Wiretap. */
3930 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3933 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3937 /* XXX - we let the user save a subset of the packets.
3939 If we do that, should we make that file the current file? If so,
3940 it means we can no longer get at the other packets. What does
3943 /* Iterate through the list of packets, processing the packets we were
3946 XXX - we've already called "packet_range_process_init(range)", but
3947 "process_specified_packets()" will do it again. Fortunately,
3948 that's harmless in this case, as we haven't done anything to
3949 "range" since we initialized it. */
3950 callback_args.pdh = pdh;
3951 callback_args.fname = fname;
3952 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3953 TRUE, save_packet, &callback_args)) {
3956 /* Completed successfully. */
3960 /* The user decided to abort the saving.
3961 XXX - remove the output file? */
3965 /* Error while saving. */
3966 wtap_dump_close(pdh, &err);
3970 if (!wtap_dump_close(pdh, &err)) {
3971 cf_close_failure_alert_box(fname, err);
3976 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
3978 if (packet_range_process_all(range)) {
3979 /* We saved the entire capture, not just some packets from it.
3980 Open and read the file we saved it to.
3982 XXX - this is somewhat of a waste; we already have the
3983 packets, all this gets us is updated file type information
3984 (which we could just stuff into "cf"), and having the new
3985 file be the one we have opened and from which we're reading
3986 the data, and it means we have to spend time opening and
3987 reading the file, which could be a significant amount of
3988 time if the file is large. */
3989 cf->user_saved = TRUE;
3991 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3992 /* XXX - report errors if this fails?
3993 What should we return if it fails or is aborted? */
3994 switch (cf_read(cf)) {
3998 /* Just because we got an error, that doesn't mean we were unable
3999 to read any of the file; we handle what we could get from the
4003 case CF_READ_ABORTED:
4004 /* The user bailed out of re-reading the capture file; the
4005 capture file has been closed - just return (without
4006 changing any menu settings; "cf_close()" set them
4007 correctly for the "no capture file open" state). */
4010 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4016 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4021 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4022 gboolean for_writing, int file_type)
4025 /* Wiretap error. */
4028 case WTAP_ERR_NOT_REGULAR_FILE:
4029 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4030 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4034 case WTAP_ERR_RANDOM_OPEN_PIPE:
4035 /* Seen only when opening a capture file for reading. */
4036 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4037 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4041 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4042 /* Seen only when opening a capture file for reading. */
4043 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4044 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4048 case WTAP_ERR_UNSUPPORTED:
4049 /* Seen only when opening a capture file for reading. */
4050 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4051 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4053 filename, err_info);
4057 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4058 /* Seen only when opening a capture file for writing. */
4059 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4060 "The file \"%s\" is a pipe, and %s capture files can't be "
4061 "written to a pipe.",
4062 filename, wtap_file_type_string(file_type));
4065 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4066 /* Seen only when opening a capture file for writing. */
4067 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4068 "Wireshark doesn't support writing capture files in that format.");
4071 case WTAP_ERR_UNSUPPORTED_ENCAP:
4073 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4074 "Wireshark can't save this capture in that format.");
4076 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4077 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4079 filename, err_info);
4084 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4086 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4087 "Wireshark can't save this capture in that format.");
4089 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4090 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4095 case WTAP_ERR_BAD_RECORD:
4096 /* Seen only when opening a capture file for reading. */
4097 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4098 "The file \"%s\" appears to be damaged or corrupt.\n"
4100 filename, err_info);
4104 case WTAP_ERR_CANT_OPEN:
4106 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4107 "The file \"%s\" could not be created for some unknown reason.",
4110 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4111 "The file \"%s\" could not be opened for some unknown reason.",
4116 case WTAP_ERR_SHORT_READ:
4117 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4118 "The file \"%s\" appears to have been cut short"
4119 " in the middle of a packet or other data.",
4123 case WTAP_ERR_SHORT_WRITE:
4124 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4125 "A full header couldn't be written to the file \"%s\".",
4129 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4130 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4131 "Gzip compression not supported by this file type.");
4135 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4136 "The file \"%s\" could not be %s: %s.",
4138 for_writing ? "created" : "opened",
4139 wtap_strerror(err));
4144 open_failure_alert_box(filename, err, for_writing);
4149 file_rename_error_message(int err)
4152 static char errmsg_errno[1024+1];
4157 errmsg = "The path to the file \"%s\" doesn't exist.";
4161 errmsg = "You don't have permission to move the capture file to \"%s\".";
4165 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4166 "The file \"%%s\" could not be moved: %s.",
4167 wtap_strerror(err));
4168 errmsg = errmsg_errno;
4175 cf_read_error_message(int err, gchar *err_info)
4177 static char errmsg_errno[1024+1];
4181 case WTAP_ERR_UNSUPPORTED_ENCAP:
4182 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4183 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4188 case WTAP_ERR_BAD_RECORD:
4189 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4190 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4191 wtap_strerror(err), err_info);
4196 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4197 "An error occurred while reading from the file \"%%s\": %s.",
4198 wtap_strerror(err));
4201 return errmsg_errno;
4205 cf_write_failure_alert_box(const char *filename, int err)
4208 /* Wiretap error. */
4209 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4210 "An error occurred while writing to the file \"%s\": %s.",
4211 filename, wtap_strerror(err));
4214 write_failure_alert_box(filename, err);
4218 /* Check for write errors - if the file is being written to an NFS server,
4219 a write error may not show up until the file is closed, as NFS clients
4220 might not send writes to the server until the "write()" call finishes,
4221 so that the write may fail on the server but the "write()" may succeed. */
4223 cf_close_failure_alert_box(const char *filename, int err)
4226 /* Wiretap error. */
4229 case WTAP_ERR_CANT_CLOSE:
4230 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4231 "The file \"%s\" couldn't be closed for some unknown reason.",
4235 case WTAP_ERR_SHORT_WRITE:
4236 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4237 "Not all the packets could be written to the file \"%s\".",
4242 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4243 "An error occurred while closing the file \"%s\": %s.",
4244 filename, wtap_strerror(err));
4249 We assume that a close error from the OS is really a write error. */
4250 write_failure_alert_box(filename, err);
4254 /* Reload the current capture file. */
4256 cf_reload(capture_file *cf) {
4258 gboolean is_tempfile;
4261 /* If the file could be opened, "cf_open()" calls "cf_close()"
4262 to get rid of state for the old capture file before filling in state
4263 for the new capture file. "cf_close()" will remove the file if
4264 it's a temporary file; we don't want that to happen (for one thing,
4265 it'd prevent subsequent reopens from working). Remember whether it's
4266 a temporary file, mark it as not being a temporary file, and then
4267 reopen it as the type of file it was.
4269 Also, "cf_close()" will free "cf->filename", so we must make
4270 a copy of it first. */
4271 filename = g_strdup(cf->filename);
4272 is_tempfile = cf->is_tempfile;
4273 cf->is_tempfile = FALSE;
4274 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4275 switch (cf_read(cf)) {
4279 /* Just because we got an error, that doesn't mean we were unable
4280 to read any of the file; we handle what we could get from the
4284 case CF_READ_ABORTED:
4285 /* The user bailed out of re-reading the capture file; the
4286 capture file has been closed - just free the capture file name
4287 string and return (without changing the last containing
4293 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4294 Instead, the file was left open, so we should restore "cf->is_tempfile"
4297 XXX - change the menu? Presumably "cf_open()" will do that;
4298 make sure it does! */
4299 cf->is_tempfile = is_tempfile;
4301 /* "cf_open()" made a copy of the file name we handed it, so
4302 we should free up our copy. */