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 fdata->lnk_t = phdr->pkt_encap;
1263 fdata->flags.encoding = CHAR_ASCII;
1264 fdata->flags.visited = 0;
1265 fdata->flags.marked = 0;
1266 fdata->flags.ref_time = 0;
1267 fdata->color_filter = NULL;
1268 fdata->col_text = NULL;
1269 fdata->col_text_len = NULL;
1271 fdata->abs_ts.secs = phdr->ts.secs;
1272 fdata->abs_ts.nsecs = phdr->ts.nsecs;
1274 if (cf->plist_end != NULL)
1275 nstime_delta(&fdata->del_cap_ts, &fdata->abs_ts, &cf->plist_end->abs_ts);
1277 nstime_set_zero(&fdata->del_cap_ts);
1282 epan_dissect_init(&edt, TRUE, FALSE);
1283 epan_dissect_prime_dfilter(&edt, cf->rfcode);
1284 epan_dissect_run(&edt, pseudo_header, buf, fdata, NULL);
1285 passed = dfilter_apply_edt(cf->rfcode, &edt);
1286 epan_dissect_cleanup(&edt);
1289 plist_end = cf->plist_end;
1290 fdata->prev = plist_end;
1291 if (plist_end != NULL)
1292 plist_end->next = fdata;
1295 cf->plist_end = fdata;
1298 cf->f_datalen = offset + phdr->caplen;
1299 fdata->num = cf->count;
1300 if (!cf->redissecting) {
1301 row = add_packet_to_packet_list(fdata, cf, dfcode,
1302 filtering_tap_listeners, tap_flags,
1303 pseudo_header, buf, TRUE, TRUE);
1306 /* XXX - if we didn't have read filters, or if we could avoid
1307 allocating the "frame_data" structure until we knew whether
1308 the frame passed the read filter, we could use a G_ALLOC_ONLY
1311 ...but, at least in one test I did, where I just made the chunk
1312 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
1313 seem to save a noticeable amount of time or space. */
1314 #if GLIB_CHECK_VERSION(2,10,0)
1315 /* memory chunks have been deprecated in favor of the slice allocator,
1316 * which has been added in 2.10
1318 g_slice_free(frame_data,fdata);
1320 g_mem_chunk_free(cf->plist_chunk, fdata);
1328 cf_merge_files(char **out_filenamep, int in_file_count,
1329 char *const *in_filenames, int file_type, gboolean do_append)
1331 merge_in_file_t *in_files;
1337 int open_err, read_err, write_err, close_err;
1341 char errmsg_errno[1024+1];
1343 gboolean got_read_error = FALSE, got_write_error = FALSE;
1345 progdlg_t *progbar = NULL;
1347 gint64 f_len, file_pos;
1349 GTimeVal start_time;
1350 gchar status_str[100];
1351 gint64 progbar_nextstep;
1352 gint64 progbar_quantum;
1354 /* open the input files */
1355 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1356 &open_err, &err_info, &err_fileno)) {
1358 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1363 if (*out_filenamep != NULL) {
1364 out_filename = *out_filenamep;
1365 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1369 out_fd = create_tempfile(&tmpname, "wireshark");
1372 out_filename = g_strdup(tmpname);
1373 *out_filenamep = out_filename;
1377 merge_close_in_files(in_file_count, in_files);
1379 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1383 pdh = wtap_dump_fdopen(out_fd, file_type,
1384 merge_select_frame_type(in_file_count, in_files),
1385 merge_max_snapshot_length(in_file_count, in_files),
1386 FALSE /* compressed */, &open_err);
1389 merge_close_in_files(in_file_count, in_files);
1391 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1396 /* Get the sum of the sizes of all the files. */
1398 for (i = 0; i < in_file_count; i++)
1399 f_len += in_files[i].size;
1401 /* Update the progress bar when it gets to this value. */
1402 progbar_nextstep = 0;
1403 /* When we reach the value that triggers a progress bar update,
1404 bump that value by this amount. */
1405 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1406 /* Progress so far. */
1410 g_get_current_time(&start_time);
1412 /* do the merge (or append) */
1415 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1418 wth = merge_read_packet(in_file_count, in_files, &read_err,
1422 got_read_error = TRUE;
1426 /* Get the sum of the data offsets in all of the files. */
1428 for (i = 0; i < in_file_count; i++)
1429 data_offset += in_files[i].data_offset;
1431 /* Create the progress bar if necessary.
1432 We check on every iteration of the loop, so that it takes no
1433 longer than the standard time to create it (otherwise, for a
1434 large file, we might take considerably longer than that standard
1435 time in order to get to the next progress bar step). */
1436 if (progbar == NULL) {
1437 progbar = delayed_create_progress_dlg("Merging", "files",
1438 FALSE, &stop_flag, &start_time, progbar_val);
1441 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1442 when we update it, we have to run the GTK+ main loop to get it
1443 to repaint what's pending, and doing so may involve an "ioctl()"
1444 to see if there's any pending input from an X server, and doing
1445 that for every packet can be costly, especially on a big file. */
1446 if (data_offset >= progbar_nextstep) {
1447 /* Get the sum of the seek positions in all of the files. */
1449 for (i = 0; i < in_file_count; i++)
1450 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1451 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1452 if (progbar_val > 1.0f) {
1453 /* Some file probably grew while we were reading it.
1454 That "shouldn't happen", so we'll just clip the progress
1458 if (progbar != NULL) {
1459 g_snprintf(status_str, sizeof(status_str),
1460 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1461 file_pos / 1024, f_len / 1024);
1462 update_progress_dlg(progbar, progbar_val, status_str);
1464 progbar_nextstep += progbar_quantum;
1468 /* Well, the user decided to abort the merge. */
1472 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1473 wtap_buf_ptr(wth), &write_err)) {
1474 got_write_error = TRUE;
1479 /* We're done merging the files; destroy the progress bar if it was created. */
1480 if (progbar != NULL)
1481 destroy_progress_dlg(progbar);
1483 merge_close_in_files(in_file_count, in_files);
1484 if (!got_read_error && !got_write_error) {
1485 if (!wtap_dump_close(pdh, &write_err))
1486 got_write_error = TRUE;
1488 wtap_dump_close(pdh, &close_err);
1490 if (got_read_error) {
1492 * Find the file on which we got the error, and report the error.
1494 for (i = 0; i < in_file_count; i++) {
1495 if (in_files[i].state == GOT_ERROR) {
1496 /* Put up a message box noting that a read failed somewhere along
1500 case WTAP_ERR_UNSUPPORTED_ENCAP:
1501 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1502 "The capture file %%s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1505 errmsg = errmsg_errno;
1508 case WTAP_ERR_CANT_READ:
1509 errmsg = "An attempt to read from the capture file %s failed for"
1510 " some unknown reason.";
1513 case WTAP_ERR_SHORT_READ:
1514 errmsg = "The capture file %s appears to have been cut short"
1515 " in the middle of a packet.";
1518 case WTAP_ERR_BAD_RECORD:
1519 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1520 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1523 errmsg = errmsg_errno;
1527 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1528 "An error occurred while reading the"
1529 " capture file %%s: %s.", wtap_strerror(read_err));
1530 errmsg = errmsg_errno;
1533 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, errmsg, in_files[i].filename);
1538 if (got_write_error) {
1539 /* Put up an alert box for the write error. */
1540 cf_write_failure_alert_box(out_filename, write_err);
1543 if (got_read_error || got_write_error || stop_flag) {
1544 /* Callers aren't expected to treat an error or an explicit abort
1545 differently - we put up error dialogs ourselves, so they don't
1553 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1555 const char *filter_new = dftext ? dftext : "";
1556 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1559 /* if new filter equals old one, do nothing unless told to do so */
1560 if (!force && strcmp(filter_new, filter_old) == 0) {
1566 if (dftext == NULL) {
1567 /* The new filter is an empty filter (i.e., display all packets).
1568 * so leave dfcode==NULL
1572 * We have a filter; make a copy of it (as we'll be saving it),
1573 * and try to compile it.
1575 dftext = g_strdup(dftext);
1576 if (!dfilter_compile(dftext, &dfcode)) {
1577 /* The attempt failed; report an error. */
1578 gchar *safe_dftext = simple_dialog_format_message(dftext);
1579 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1581 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1584 "The following display filter isn't a valid display filter:\n%s\n"
1585 "See the help for a description of the display filter syntax.",
1586 simple_dialog_primary_start(), safe_dfilter_error_msg,
1587 simple_dialog_primary_end(), safe_dftext);
1588 g_free(safe_dfilter_error_msg);
1589 g_free(safe_dftext);
1595 if (dfcode == NULL) {
1596 /* Yes - free the filter text, and set it to null. */
1602 /* We have a valid filter. Replace the current filter. */
1603 g_free(cf->dfilter);
1604 cf->dfilter = dftext;
1606 /* Now rescan the packet list, applying the new filter, but not
1607 throwing away information constructed on a previous pass. */
1608 if (dftext == NULL) {
1609 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1611 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1614 /* Cleanup and release all dfilter resources */
1615 if (dfcode != NULL){
1616 dfilter_free(dfcode);
1622 cf_colorize_packets(capture_file *cf)
1624 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1628 cf_reftime_packets(capture_file *cf)
1631 #ifdef NEW_PACKET_LIST
1632 ref_time_packets(cf);
1634 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1639 cf_redissect_packets(capture_file *cf)
1641 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1644 /* Rescan the list of packets, reconstructing the CList.
1646 "action" describes why we're doing this; it's used in the progress
1649 "action_item" describes what we're doing; it's used in the progress
1652 "refilter" is TRUE if we need to re-evaluate the filter expression.
1654 "redissect" is TRUE if we need to make the dissectors reconstruct
1655 any state information they have (because a preference that affects
1656 some dissector has changed, meaning some dissector might construct
1657 its state differently from the way it was constructed the last time). */
1659 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1660 gboolean refilter, gboolean redissect)
1663 progdlg_t *progbar = NULL;
1668 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1669 int selected_row, prev_row, preceding_row, following_row;
1670 gboolean selected_frame_seen;
1673 GTimeVal start_time;
1674 gchar status_str[100];
1675 int progbar_nextstep;
1676 int progbar_quantum;
1678 gboolean filtering_tap_listeners;
1680 #ifdef NEW_PACKET_LIST
1681 gboolean add_to_packet_list = FALSE;
1683 gboolean add_to_packet_list = TRUE;
1686 /* Compile the current display filter.
1687 * We assume this will not fail since cf->dfilter is only set in
1688 * cf_filter IFF the filter was valid.
1692 dfilter_compile(cf->dfilter, &dfcode);
1695 /* Do we have any tap listeners with filters? */
1696 filtering_tap_listeners = have_filtering_tap_listeners();
1698 /* Get the union of the flags for all tap listeners. */
1699 tap_flags = union_of_tap_listener_flags();
1702 reset_tap_listeners();
1703 /* Which frame, if any, is the currently selected frame?
1704 XXX - should the selected frame or the focus frame be the "current"
1705 frame, that frame being the one from which "Find Frame" searches
1707 selected_frame = cf->current_frame;
1709 /* We don't yet know what row that frame will be on, if any, after we
1710 rebuild the clist, however. */
1713 /* Freeze the packet list while we redo it, so we don't get any
1714 screen updates while it happens. */
1715 #ifdef NEW_PACKET_LIST
1716 new_packet_list_freeze();
1718 packet_list_freeze();
1721 packet_list_clear();
1725 /* We need to re-initialize all the state information that protocols
1726 keep, because some preference that controls a dissector has changed,
1727 which might cause the state information to be constructed differently
1728 by that dissector. */
1730 /* We might receive new packets while redissecting, and we don't
1731 want to dissect those before their time. */
1732 cf->redissecting = TRUE;
1734 /* Cleanup all data structures used for dissection. */
1735 cleanup_dissection();
1736 /* Initialize all data structures used for dissection. */
1739 #ifdef NEW_PACKET_LIST
1740 /* We need to redissect the packets so we have to discard our old
1741 * packet list store. */
1742 new_packet_list_clear();
1743 add_to_packet_list = TRUE;
1747 /* We don't yet know which will be the first and last frames displayed. */
1748 cf->first_displayed = NULL;
1749 cf->last_displayed = NULL;
1751 /* We currently don't display any packets */
1752 cf->displayed_count = 0;
1754 /* Iterate through the list of frames. Call a routine for each frame
1755 to check whether it should be displayed and, if so, add it to
1756 the display list. */
1757 nstime_set_unset(&first_ts);
1758 nstime_set_unset(&prev_dis_ts);
1760 /* Update the progress bar when it gets to this value. */
1761 progbar_nextstep = 0;
1762 /* When we reach the value that triggers a progress bar update,
1763 bump that value by this amount. */
1764 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1765 /* Count of packets at which we've looked. */
1767 /* Progress so far. */
1771 g_get_current_time(&start_time);
1773 row = -1; /* no previous row yet */
1778 preceding_frame = NULL;
1780 following_frame = NULL;
1782 selected_frame_seen = FALSE;
1784 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1785 /* Create the progress bar if necessary.
1786 We check on every iteration of the loop, so that it takes no
1787 longer than the standard time to create it (otherwise, for a
1788 large file, we might take considerably longer than that standard
1789 time in order to get to the next progress bar step). */
1790 if (progbar == NULL)
1791 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1792 &stop_flag, &start_time,
1795 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1796 when we update it, we have to run the GTK+ main loop to get it
1797 to repaint what's pending, and doing so may involve an "ioctl()"
1798 to see if there's any pending input from an X server, and doing
1799 that for every packet can be costly, especially on a big file. */
1800 if (count >= progbar_nextstep) {
1801 /* let's not divide by zero. I should never be started
1802 * with count == 0, so let's assert that
1804 g_assert(cf->count > 0);
1805 progbar_val = (gfloat) count / cf->count;
1807 if (progbar != NULL) {
1808 g_snprintf(status_str, sizeof(status_str),
1809 "%4u of %u frames", count, cf->count);
1810 update_progress_dlg(progbar, progbar_val, status_str);
1813 progbar_nextstep += progbar_quantum;
1817 /* Well, the user decided to abort the filtering. Just stop.
1819 XXX - go back to the previous filter? Users probably just
1820 want not to wait for a filtering operation to finish;
1821 unless we cancel by having no filter, reverting to the
1822 previous filter will probably be even more expensive than
1823 continuing the filtering, as it involves going back to the
1824 beginning and filtering, and even with no filter we currently
1825 have to re-generate the entire clist, which is also expensive.
1827 I'm not sure what Network Monitor does, but it doesn't appear
1828 to give you an unfiltered display if you cancel. */
1835 /* Since all state for the frame was destroyed, mark the frame
1836 * as not visited, free the GSList referring to the state
1837 * data (the per-frame data itself was freed by
1838 * "init_dissection()"), and null out the GSList pointer. */
1839 fdata->flags.visited = 0;
1841 g_slist_free(fdata->pfd);
1846 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1847 cf->pd, fdata->cap_len, &err, &err_info)) {
1848 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1849 cf_read_error_message(err, err_info), cf->filename);
1853 /* If the previous frame is displayed, and we haven't yet seen the
1854 selected frame, remember that frame - it's the closest one we've
1855 yet seen before the selected frame. */
1856 if (prev_row != -1 && !selected_frame_seen) {
1857 preceding_row = prev_row;
1858 preceding_frame = prev_frame;
1860 row = add_packet_to_packet_list(fdata, cf, dfcode, filtering_tap_listeners,
1861 tap_flags, &cf->pseudo_header, cf->pd,
1863 add_to_packet_list);
1865 /* If this frame is displayed, and this is the first frame we've
1866 seen displayed after the selected frame, remember this frame -
1867 it's the closest one we've yet seen at or after the selected
1869 if (row != -1 && selected_frame_seen && following_row == -1) {
1870 following_row = row;
1871 following_frame = fdata;
1873 if (fdata == selected_frame) {
1875 selected_frame_seen = TRUE;
1878 /* Remember this row/frame - it'll be the previous row/frame
1879 on the next pass through the loop. */
1884 /* We are done redissecting the packet list. */
1885 cf->redissecting = FALSE;
1887 #ifndef NEW_PACKET_LIST
1888 /* Re-sort the list using the previously selected order */
1889 packet_list_set_sort_column();
1893 /* Clear out what remains of the visited flags and per-frame data
1896 XXX - that may cause various forms of bogosity when dissecting
1897 these frames, as they won't have been seen by this sequential
1898 pass, but the only alternative I see is to keep scanning them
1899 even though the user requested that the scan stop, and that
1900 would leave the user stuck with an Wireshark grinding on
1901 until it finishes. Should we just stick them with that? */
1902 for (; fdata != NULL; fdata = fdata->next) {
1903 fdata->flags.visited = 0;
1905 g_slist_free(fdata->pfd);
1911 /* We're done filtering the packets; destroy the progress bar if it
1913 if (progbar != NULL)
1914 destroy_progress_dlg(progbar);
1916 /* Unfreeze the packet list. */
1917 #ifdef NEW_PACKET_LIST
1918 if (!add_to_packet_list)
1919 new_packet_list_recreate_visible_rows();
1920 new_packet_list_thaw();
1925 if (selected_row == -1) {
1926 /* The selected frame didn't pass the filter. */
1927 if (selected_frame == NULL) {
1928 /* That's because there *was* no selected frame. Make the first
1929 displayed frame the current frame. */
1932 /* Find the nearest displayed frame to the selected frame (whether
1933 it's before or after that frame) and make that the current frame.
1934 If the next and previous displayed frames are equidistant from the
1935 selected frame, choose the next one. */
1936 g_assert(following_frame == NULL ||
1937 following_frame->num >= selected_frame->num);
1938 g_assert(preceding_frame == NULL ||
1939 preceding_frame->num <= selected_frame->num);
1940 if (following_frame == NULL) {
1941 /* No frame after the selected frame passed the filter, so we
1942 have to select the last displayed frame before the selected
1944 selected_row = preceding_row;
1945 } else if (preceding_frame == NULL) {
1946 /* No frame before the selected frame passed the filter, so we
1947 have to select the first displayed frame after the selected
1949 selected_row = following_row;
1951 /* Frames before and after the selected frame passed the filter, so
1952 we'll select the previous frame */
1953 selected_row = preceding_row;
1958 if (selected_row == -1) {
1959 /* There are no frames displayed at all. */
1960 cf_unselect_packet(cf);
1962 #ifndef NEW_PACKET_LIST
1963 /* Either the frame that was selected passed the filter, or we've
1964 found the nearest displayed frame to that frame. Select it, make
1965 it the focus row, and make it visible. */
1966 if (selected_row == 0) {
1967 /* Set to invalid to force update of packet list and packet details */
1968 cf->current_row = -1;
1970 packet_list_set_selected_row(selected_row);
1971 #endif /* NEW_PACKET_LIST */
1974 /* Cleanup and release all dfilter resources */
1975 if (dfcode != NULL){
1976 dfilter_free(dfcode);
1980 * Scan trough all frame data and recalculate the ref time
1981 * without rereading the file.
1982 * XXX - do we need a progres bar or is this fast enough?
1984 #ifdef NEW_PACKET_LIST
1986 ref_time_packets(capture_file *cf)
1992 nstime_set_unset(&first_ts);
1993 nstime_set_unset(&prev_dis_ts);
1996 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1998 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
1999 /* just add some value here until we know if it is being displayed or not */
2000 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
2002 /* If we don't have the time stamp of the first packet in the
2003 capture, it's because this is the first packet. Save the time
2004 stamp of this packet as the time stamp of the first packet. */
2005 if (nstime_is_unset(&first_ts)) {
2006 first_ts = fdata->abs_ts;
2008 /* if this frames is marked as a reference time frame, reset
2009 firstsec and firstusec to this frame */
2010 if(fdata->flags.ref_time){
2011 first_ts = fdata->abs_ts;
2014 /* If we don't have the time stamp of the previous displayed packet,
2015 it's because this is the first displayed packet. Save the time
2016 stamp of this packet as the time stamp of the previous displayed
2018 if (nstime_is_unset(&prev_dis_ts)) {
2019 prev_dis_ts = fdata->abs_ts;
2022 /* Get the time elapsed between the first packet and this packet. */
2023 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
2025 /* If it's greater than the current elapsed time, set the elapsed time
2026 to it (we check for "greater than" so as not to be confused by
2027 time moving backwards). */
2028 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
2029 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
2030 cf->elapsed_time = fdata->rel_ts;
2033 /* Get the time elapsed between the previous displayed packet and
2035 nstime_delta(&fdata->del_dis_ts, &fdata->abs_ts, &prev_dis_ts);
2037 if( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ){
2038 /* This frame either passed the display filter list or is marked as
2039 a time reference frame. All time reference frames are displayed
2040 even if they dont pass the display filter */
2041 if(fdata->flags.ref_time){
2042 /* if this was a TIME REF frame we should reset the cul bytes field */
2043 cum_bytes = fdata->pkt_len;
2044 fdata->cum_bytes = cum_bytes;
2046 /* increase cum_bytes with this packets length */
2047 cum_bytes += fdata->pkt_len;
2060 process_specified_packets(capture_file *cf, packet_range_t *range,
2061 const char *string1, const char *string2, gboolean terminate_is_stop,
2062 gboolean (*callback)(capture_file *, frame_data *,
2063 union wtap_pseudo_header *, const guint8 *, void *),
2064 void *callback_args)
2069 union wtap_pseudo_header pseudo_header;
2070 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
2071 psp_return_t ret = PSP_FINISHED;
2073 progdlg_t *progbar = NULL;
2076 gboolean progbar_stop_flag;
2077 GTimeVal progbar_start_time;
2078 gchar progbar_status_str[100];
2079 int progbar_nextstep;
2080 int progbar_quantum;
2081 range_process_e process_this;
2083 /* Update the progress bar when it gets to this value. */
2084 progbar_nextstep = 0;
2085 /* When we reach the value that triggers a progress bar update,
2086 bump that value by this amount. */
2087 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2088 /* Count of packets at which we've looked. */
2090 /* Progress so far. */
2093 progbar_stop_flag = FALSE;
2094 g_get_current_time(&progbar_start_time);
2096 packet_range_process_init(range);
2098 /* Iterate through the list of packets, printing the packets that
2099 were selected by the current display filter. */
2100 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2101 /* Create the progress bar if necessary.
2102 We check on every iteration of the loop, so that it takes no
2103 longer than the standard time to create it (otherwise, for a
2104 large file, we might take considerably longer than that standard
2105 time in order to get to the next progress bar step). */
2106 if (progbar == NULL)
2107 progbar = delayed_create_progress_dlg(string1, string2,
2110 &progbar_start_time,
2113 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2114 when we update it, we have to run the GTK+ main loop to get it
2115 to repaint what's pending, and doing so may involve an "ioctl()"
2116 to see if there's any pending input from an X server, and doing
2117 that for every packet can be costly, especially on a big file. */
2118 if (progbar_count >= progbar_nextstep) {
2119 /* let's not divide by zero. I should never be started
2120 * with count == 0, so let's assert that
2122 g_assert(cf->count > 0);
2123 progbar_val = (gfloat) progbar_count / cf->count;
2125 if (progbar != NULL) {
2126 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2127 "%4u of %u packets", progbar_count, cf->count);
2128 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2131 progbar_nextstep += progbar_quantum;
2134 if (progbar_stop_flag) {
2135 /* Well, the user decided to abort the operation. Just stop,
2136 and arrange to return PSP_STOPPED to our caller, so they know
2137 it was stopped explicitly. */
2144 /* do we have to process this packet? */
2145 process_this = packet_range_process_packet(range, fdata);
2146 if (process_this == range_process_next) {
2147 /* this packet uninteresting, continue with next one */
2149 } else if (process_this == range_processing_finished) {
2150 /* all interesting packets processed, stop the loop */
2154 /* Get the packet */
2155 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
2156 pd, fdata->cap_len, &err, &err_info)) {
2157 /* Attempt to get the packet failed. */
2158 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2159 cf_read_error_message(err, err_info), cf->filename);
2163 /* Process the packet */
2164 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
2165 /* Callback failed. We assume it reported the error appropriately. */
2171 /* We're done printing the packets; destroy the progress bar if
2173 if (progbar != NULL)
2174 destroy_progress_dlg(progbar);
2180 gboolean construct_protocol_tree;
2182 } retap_callback_args_t;
2185 retap_packet(capture_file *cf _U_, frame_data *fdata,
2186 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2189 retap_callback_args_t *args = argsp;
2192 epan_dissect_init(&edt, args->construct_protocol_tree, FALSE);
2193 tap_queue_init(&edt);
2194 epan_dissect_run(&edt, pseudo_header, pd, fdata, args->cinfo);
2195 tap_push_tapped_queue(&edt);
2196 epan_dissect_cleanup(&edt);
2202 cf_retap_packets(capture_file *cf)
2204 packet_range_t range;
2205 retap_callback_args_t callback_args;
2206 gboolean filtering_tap_listeners;
2209 /* Do we have any tap listeners with filters? */
2210 filtering_tap_listeners = have_filtering_tap_listeners();
2212 tap_flags = union_of_tap_listener_flags();
2214 /* If any tap listeners have filters, or require the protocol tree,
2215 construct the protocol tree. */
2216 callback_args.construct_protocol_tree = filtering_tap_listeners ||
2217 (tap_flags & TL_REQUIRES_PROTO_TREE);
2219 /* If any tap listeners require the columns, construct them. */
2220 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2222 /* Reset the tap listeners. */
2223 reset_tap_listeners();
2225 /* Iterate through the list of packets, dissecting all packets and
2226 re-running the taps. */
2227 packet_range_init(&range);
2228 packet_range_process_init(&range);
2229 switch (process_specified_packets(cf, &range, "Recalculating statistics on",
2230 "all packets", TRUE, retap_packet,
2233 /* Completed successfully. */
2237 /* Well, the user decided to abort the refiltering.
2238 Return CF_READ_ABORTED so our caller knows they did that. */
2239 return CF_READ_ABORTED;
2242 /* Error while retapping. */
2243 return CF_READ_ERROR;
2246 g_assert_not_reached();
2251 print_args_t *print_args;
2252 gboolean print_header_line;
2253 char *header_line_buf;
2254 int header_line_buf_len;
2255 gboolean print_formfeed;
2256 gboolean print_separator;
2260 } print_callback_args_t;
2263 print_packet(capture_file *cf, frame_data *fdata,
2264 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2267 print_callback_args_t *args = argsp;
2274 gboolean proto_tree_needed;
2275 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2276 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2278 /* Create the protocol tree, and make it visible, if we're printing
2279 the dissection or the hex data.
2280 XXX - do we need it if we're just printing the hex data? */
2282 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex || have_custom_cols(&cf->cinfo);
2283 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2285 /* Fill in the column information if we're printing the summary
2287 if (args->print_args->print_summary) {
2288 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2289 epan_dissect_fill_in_columns(&edt, TRUE);
2291 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2293 if (args->print_formfeed) {
2294 if (!new_page(args->print_args->stream))
2297 if (args->print_separator) {
2298 if (!print_line(args->print_args->stream, 0, ""))
2304 * We generate bookmarks, if the output format supports them.
2305 * The name is "__frameN__".
2307 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2309 if (args->print_args->print_summary) {
2310 if (args->print_header_line) {
2311 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2313 args->print_header_line = FALSE; /* we might not need to print any more */
2315 cp = &args->line_buf[0];
2317 for (i = 0; i < cf->cinfo.num_cols; i++) {
2318 /* Find the length of the string for this column. */
2319 column_len = (int) strlen(cf->cinfo.col_data[i]);
2320 if (args->col_widths[i] > column_len)
2321 column_len = args->col_widths[i];
2323 /* Make sure there's room in the line buffer for the column; if not,
2324 double its length. */
2325 line_len += column_len + 1; /* "+1" for space */
2326 if (line_len > args->line_buf_len) {
2327 cp_off = (int) (cp - args->line_buf);
2328 args->line_buf_len = 2 * line_len;
2329 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
2330 cp = args->line_buf + cp_off;
2333 /* Right-justify the packet number column. */
2334 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2335 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
2337 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
2339 if (i != cf->cinfo.num_cols - 1)
2345 * Generate a bookmark, using the summary line as the title.
2347 if (!print_bookmark(args->print_args->stream, bookmark_name,
2351 if (!print_line(args->print_args->stream, 0, args->line_buf))
2355 * Generate a bookmark, using "Frame N" as the title, as we're not
2356 * printing the summary line.
2358 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2359 if (!print_bookmark(args->print_args->stream, bookmark_name,
2362 } /* if (print_summary) */
2364 if (args->print_args->print_dissections != print_dissections_none) {
2365 if (args->print_args->print_summary) {
2366 /* Separate the summary line from the tree with a blank line. */
2367 if (!print_line(args->print_args->stream, 0, ""))
2371 /* Print the information in that tree. */
2372 if (!proto_tree_print(args->print_args, &edt, args->print_args->stream))
2375 /* Print a blank line if we print anything after this (aka more than one packet). */
2376 args->print_separator = TRUE;
2378 /* Print a header line if we print any more packet summaries */
2379 args->print_header_line = TRUE;
2382 if (args->print_args->print_hex) {
2383 /* Print the full packet data as hex. */
2384 if (!print_hex_data(args->print_args->stream, &edt))
2387 /* Print a blank line if we print anything after this (aka more than one packet). */
2388 args->print_separator = TRUE;
2390 /* Print a header line if we print any more packet summaries */
2391 args->print_header_line = TRUE;
2392 } /* if (args->print_args->print_dissections != print_dissections_none) */
2394 epan_dissect_cleanup(&edt);
2396 /* do we want to have a formfeed between each packet from now on? */
2397 if(args->print_args->print_formfeed) {
2398 args->print_formfeed = TRUE;
2404 epan_dissect_cleanup(&edt);
2409 cf_print_packets(capture_file *cf, print_args_t *print_args)
2412 print_callback_args_t callback_args;
2420 callback_args.print_args = print_args;
2421 callback_args.print_header_line = TRUE;
2422 callback_args.header_line_buf = NULL;
2423 callback_args.header_line_buf_len = 256;
2424 callback_args.print_formfeed = FALSE;
2425 callback_args.print_separator = FALSE;
2426 callback_args.line_buf = NULL;
2427 callback_args.line_buf_len = 256;
2428 callback_args.col_widths = NULL;
2430 if (!print_preamble(print_args->stream, cf->filename)) {
2431 destroy_print_stream(print_args->stream);
2432 return CF_PRINT_WRITE_ERROR;
2435 if (print_args->print_summary) {
2436 /* We're printing packet summaries. Allocate the header line buffer
2437 and get the column widths. */
2438 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
2440 /* Find the widths for each of the columns - maximum of the
2441 width of the title and the width of the data - and construct
2442 a buffer with a line containing the column titles. */
2443 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
2444 cp = &callback_args.header_line_buf[0];
2446 for (i = 0; i < cf->cinfo.num_cols; i++) {
2447 /* Don't pad the last column. */
2448 if (i == cf->cinfo.num_cols - 1)
2449 callback_args.col_widths[i] = 0;
2451 callback_args.col_widths[i] = (gint) strlen(cf->cinfo.col_title[i]);
2452 data_width = get_column_char_width(get_column_format(i));
2453 if (data_width > callback_args.col_widths[i])
2454 callback_args.col_widths[i] = data_width;
2457 /* Find the length of the string for this column. */
2458 column_len = (int) strlen(cf->cinfo.col_title[i]);
2459 if (callback_args.col_widths[i] > column_len)
2460 column_len = callback_args.col_widths[i];
2462 /* Make sure there's room in the line buffer for the column; if not,
2463 double its length. */
2464 line_len += column_len + 1; /* "+1" for space */
2465 if (line_len > callback_args.header_line_buf_len) {
2466 cp_off = (int) (cp - callback_args.header_line_buf);
2467 callback_args.header_line_buf_len = 2 * line_len;
2468 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
2469 callback_args.header_line_buf_len + 1);
2470 cp = callback_args.header_line_buf + cp_off;
2473 /* Right-justify the packet number column. */
2474 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2475 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2477 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
2479 if (i != cf->cinfo.num_cols - 1)
2484 /* Now start out the main line buffer with the same length as the
2485 header line buffer. */
2486 callback_args.line_buf_len = callback_args.header_line_buf_len;
2487 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
2488 } /* if (print_summary) */
2490 /* Iterate through the list of packets, printing the packets we were
2492 ret = process_specified_packets(cf, &print_args->range, "Printing",
2493 "selected packets", TRUE, print_packet,
2496 g_free(callback_args.header_line_buf);
2497 g_free(callback_args.line_buf);
2498 g_free(callback_args.col_widths);
2503 /* Completed successfully. */
2507 /* Well, the user decided to abort the printing.
2509 XXX - note that what got generated before they did that
2510 will get printed if we're piping to a print program; we'd
2511 have to write to a file and then hand that to the print
2512 program to make it actually not print anything. */
2516 /* Error while printing.
2518 XXX - note that what got generated before they did that
2519 will get printed if we're piping to a print program; we'd
2520 have to write to a file and then hand that to the print
2521 program to make it actually not print anything. */
2522 destroy_print_stream(print_args->stream);
2523 return CF_PRINT_WRITE_ERROR;
2526 if (!print_finale(print_args->stream)) {
2527 destroy_print_stream(print_args->stream);
2528 return CF_PRINT_WRITE_ERROR;
2531 if (!destroy_print_stream(print_args->stream))
2532 return CF_PRINT_WRITE_ERROR;
2538 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2539 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2545 /* Create the protocol tree, but don't fill in the column information. */
2546 epan_dissect_init(&edt, TRUE, TRUE);
2547 epan_dissect_run(&edt, pseudo_header, pd, fdata, NULL);
2549 /* Write out the information in that tree. */
2550 proto_tree_write_pdml(&edt, fh);
2552 epan_dissect_cleanup(&edt);
2558 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2563 fh = ws_fopen(print_args->file, "w");
2565 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2567 write_pdml_preamble(fh);
2570 return CF_PRINT_WRITE_ERROR;
2573 /* Iterate through the list of packets, printing the packets we were
2575 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2576 "selected packets", TRUE,
2577 write_pdml_packet, fh);
2582 /* Completed successfully. */
2586 /* Well, the user decided to abort the printing. */
2590 /* Error while printing. */
2592 return CF_PRINT_WRITE_ERROR;
2595 write_pdml_finale(fh);
2598 return CF_PRINT_WRITE_ERROR;
2601 /* XXX - check for an error */
2608 write_psml_packet(capture_file *cf, frame_data *fdata,
2609 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2614 gboolean proto_tree_needed;
2616 /* Fill in the column information, only create the protocol tree
2617 if having custom columns. */
2618 proto_tree_needed = have_custom_cols(&cf->cinfo);
2619 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2620 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2621 epan_dissect_fill_in_columns(&edt, TRUE);
2623 /* Write out the information in that tree. */
2624 proto_tree_write_psml(&edt, fh);
2626 epan_dissect_cleanup(&edt);
2632 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2637 fh = ws_fopen(print_args->file, "w");
2639 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2641 write_psml_preamble(fh);
2644 return CF_PRINT_WRITE_ERROR;
2647 /* Iterate through the list of packets, printing the packets we were
2649 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2650 "selected packets", TRUE,
2651 write_psml_packet, fh);
2656 /* Completed successfully. */
2660 /* Well, the user decided to abort the printing. */
2664 /* Error while printing. */
2666 return CF_PRINT_WRITE_ERROR;
2669 write_psml_finale(fh);
2672 return CF_PRINT_WRITE_ERROR;
2675 /* XXX - check for an error */
2682 write_csv_packet(capture_file *cf, frame_data *fdata,
2683 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2688 gboolean proto_tree_needed;
2690 /* Fill in the column information, only create the protocol tree
2691 if having custom columns. */
2692 proto_tree_needed = have_custom_cols(&cf->cinfo);
2693 epan_dissect_init(&edt, proto_tree_needed, proto_tree_needed);
2694 epan_dissect_run(&edt, pseudo_header, pd, fdata, &cf->cinfo);
2695 epan_dissect_fill_in_columns(&edt, TRUE);
2697 /* Write out the information in that tree. */
2698 proto_tree_write_csv(&edt, fh);
2700 epan_dissect_cleanup(&edt);
2706 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2711 fh = ws_fopen(print_args->file, "w");
2713 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2715 write_csv_preamble(fh);
2718 return CF_PRINT_WRITE_ERROR;
2721 /* Iterate through the list of packets, printing the packets we were
2723 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2724 "selected packets", TRUE,
2725 write_csv_packet, fh);
2730 /* Completed successfully. */
2734 /* Well, the user decided to abort the printing. */
2738 /* Error while printing. */
2740 return CF_PRINT_WRITE_ERROR;
2743 write_csv_finale(fh);
2746 return CF_PRINT_WRITE_ERROR;
2749 /* XXX - check for an error */
2756 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2757 union wtap_pseudo_header *pseudo_header _U_,
2758 const guint8 *pd, void *argsp)
2762 proto_tree_write_carrays(pd, fdata->cap_len, fdata->num, fh);
2767 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2772 fh = ws_fopen(print_args->file, "w");
2775 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2777 write_carrays_preamble(fh);
2781 return CF_PRINT_WRITE_ERROR;
2784 /* Iterate through the list of packets, printing the packets we were
2786 ret = process_specified_packets(cf, &print_args->range,
2788 "selected packets", TRUE,
2789 write_carrays_packet, fh);
2792 /* Completed successfully. */
2795 /* Well, the user decided to abort the printing. */
2798 /* Error while printing. */
2800 return CF_PRINT_WRITE_ERROR;
2803 write_carrays_finale(fh);
2807 return CF_PRINT_WRITE_ERROR;
2814 /* Scan through the packet list and change all columns that use the
2815 "command-line-specified" time stamp format to use the current
2816 value of that format. */
2818 cf_change_time_formats(capture_file *cf)
2821 progdlg_t *progbar = NULL;
2827 GTimeVal start_time;
2828 gchar status_str[100];
2829 int progbar_nextstep;
2830 int progbar_quantum;
2831 gboolean sorted_by_frame_column;
2834 /* adjust timestamp precision if auto is selected */
2835 cf_timestamp_auto_precision(cf);
2837 /* Are there any columns with time stamps in the "command-line-specified"
2840 XXX - we have to force the "column is writable" flag on, as it
2841 might be off from the last frame that was dissected. */
2842 col_set_writable(&cf->cinfo, TRUE);
2843 if (!check_col(&cf->cinfo, COL_CLS_TIME) &&
2844 !check_col(&cf->cinfo, COL_ABS_TIME) &&
2845 !check_col(&cf->cinfo, COL_ABS_DATE_TIME) &&
2846 !check_col(&cf->cinfo, COL_REL_TIME) &&
2847 !check_col(&cf->cinfo, COL_DELTA_TIME) &&
2848 !check_col(&cf->cinfo, COL_DELTA_TIME_DIS)) {
2849 /* No, there aren't any columns in that format, so we have no work
2854 /* Freeze the packet list while we redo it, so we don't get any
2855 screen updates while it happens. */
2856 #ifdef NEW_PACKET_LIST
2857 new_packet_list_freeze();
2859 packet_list_freeze();
2862 /* Update the progress bar when it gets to this value. */
2863 progbar_nextstep = 0;
2864 /* When we reach the value that triggers a progress bar update,
2865 bump that value by this amount. */
2866 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2867 /* Count of packets at which we've looked. */
2869 /* Progress so far. */
2872 /* If the rows are currently sorted by the frame column then we know
2873 * the row number of each packet: it's the row number of the previously
2874 * displayed packet + 1.
2876 * Otherwise, if the display is sorted by a different column then we have
2877 * to use the O(N) packet_list_find_row_from_data() (thus making the job
2878 * of changing the time display format O(N**2)).
2880 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
2881 * the row number and walks that many elements down the clist to find
2882 * the appropriate element.)
2884 sorted_by_frame_column = FALSE;
2885 for (i = 0; i < cf->cinfo.num_cols; i++) {
2886 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2888 #ifndef NEW_PACKET_LIST
2889 sorted_by_frame_column = (i == packet_list_get_sort_column());
2896 g_get_current_time(&start_time);
2898 /* Iterate through the list of packets, checking whether the packet
2899 is in a row of the summary list and, if so, whether there are
2900 any columns that show the time in the "command-line-specified"
2901 format and, if so, update that row. */
2902 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
2903 /* Create the progress bar if necessary.
2904 We check on every iteration of the loop, so that it takes no
2905 longer than the standard time to create it (otherwise, for a
2906 large file, we might take considerably longer than that standard
2907 time in order to get to the next progress bar step). */
2908 if (progbar == NULL)
2909 progbar = delayed_create_progress_dlg("Changing", "time display",
2910 TRUE, &stop_flag, &start_time, progbar_val);
2912 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2913 when we update it, we have to run the GTK+ main loop to get it
2914 to repaint what's pending, and doing so may involve an "ioctl()"
2915 to see if there's any pending input from an X server, and doing
2916 that for every packet can be costly, especially on a big file. */
2917 if (count >= progbar_nextstep) {
2918 /* let's not divide by zero. I should never be started
2919 * with count == 0, so let's assert that
2921 g_assert(cf->count > 0);
2923 progbar_val = (gfloat) count / cf->count;
2925 if (progbar != NULL) {
2926 g_snprintf(status_str, sizeof(status_str),
2927 "%4u of %u packets", count, cf->count);
2928 update_progress_dlg(progbar, progbar_val, status_str);
2931 progbar_nextstep += progbar_quantum;
2935 /* Well, the user decided to abort the redisplay. Just stop.
2937 XXX - this leaves the time field in the old format in
2938 frames we haven't yet processed. So it goes; should we
2939 simply not offer them the option of stopping? */
2945 /* Find what row this packet is in. */
2946 if (!sorted_by_frame_column) {
2947 /* This function is O(N), so we try to avoid using it... */
2948 #ifdef NEW_PACKET_LIST
2949 row = new_packet_list_find_row_from_data(fdata, FALSE);
2951 row = packet_list_find_row_from_data(fdata);
2954 /* ...which we do by maintaining a count of packets that are
2955 being displayed (i.e., that have passed the display filter),
2956 and using the current value of that count as the row number
2957 (which is why we can only do it when the display is sorted
2958 by the frame number). */
2959 if (fdata->flags.passed_dfilter)
2966 /* This packet is in the summary list, on row "row". */
2968 for (i = 0; i < cf->cinfo.num_cols; i++) {
2969 if (col_has_time_fmt(&cf->cinfo, i)) {
2970 /* This is one of the columns that shows the time in
2971 "command-line-specified" format; update it. */
2972 cf->cinfo.col_buf[i][0] = '\0';
2973 col_set_fmt_time(fdata, &cf->cinfo, cf->cinfo.col_fmt[i], i);
2974 #ifdef NEW_PACKET_LIST
2976 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
2983 /* We're done redisplaying the packets; destroy the progress bar if it
2985 if (progbar != NULL)
2986 destroy_progress_dlg(progbar);
2988 /* Set the column widths of those columns that show the time in
2989 "command-line-specified" format. */
2990 for (i = 0; i < cf->cinfo.num_cols; i++) {
2991 if (col_has_time_fmt(&cf->cinfo, i)) {
2992 #ifdef NEW_PACKET_LIST
2993 new_packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
2995 packet_list_set_time_width(cf->cinfo.col_fmt[i], i);
3000 /* Unfreeze the packet list. */
3001 #ifdef NEW_PACKET_LIST
3002 new_packet_list_thaw();
3012 gboolean frame_matched;
3016 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
3020 mdata.string = string;
3021 mdata.string_len = strlen(string);
3022 return find_packet(cf, match_protocol_tree, &mdata);
3026 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3028 match_data *mdata = criterion;
3031 /* Construct the protocol tree, including the displayed text */
3032 epan_dissect_init(&edt, TRUE, TRUE);
3033 /* We don't need the column information */
3034 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3036 /* Iterate through all the nodes, seeing if they have text that matches. */
3038 mdata->frame_matched = FALSE;
3039 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3040 epan_dissect_cleanup(&edt);
3041 return mdata->frame_matched;
3045 match_subtree_text(proto_node *node, gpointer data)
3047 match_data *mdata = (match_data*) data;
3048 const gchar *string = mdata->string;
3049 size_t string_len = mdata->string_len;
3050 capture_file *cf = mdata->cf;
3051 field_info *fi = PNODE_FINFO(node);
3052 gchar label_str[ITEM_LABEL_LENGTH];
3059 g_assert(fi && "dissection with an invisible proto tree?");
3061 if (mdata->frame_matched) {
3062 /* We already had a match; don't bother doing any more work. */
3066 /* Don't match invisible entries. */
3067 if (PROTO_ITEM_IS_HIDDEN(node))
3070 /* was a free format label produced? */
3072 label_ptr = fi->rep->representation;
3074 /* no, make a generic label */
3075 label_ptr = label_str;
3076 proto_item_fill_label(fi, label_str);
3079 /* Does that label match? */
3080 label_len = strlen(label_ptr);
3081 for (i = 0; i < label_len; i++) {
3082 c_char = label_ptr[i];
3084 c_char = toupper(c_char);
3085 if (c_char == string[c_match]) {
3087 if (c_match == string_len) {
3088 /* No need to look further; we have a match */
3089 mdata->frame_matched = TRUE;
3096 /* Recurse into the subtree, if it exists */
3097 if (node->first_child != NULL)
3098 proto_tree_children_foreach(node, match_subtree_text, mdata);
3102 cf_find_packet_summary_line(capture_file *cf, const char *string)
3106 mdata.string = string;
3107 mdata.string_len = strlen(string);
3108 return find_packet(cf, match_summary_line, &mdata);
3112 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3114 match_data *mdata = criterion;
3115 const gchar *string = mdata->string;
3116 size_t string_len = mdata->string_len;
3118 const char *info_column;
3119 size_t info_column_len;
3120 gboolean frame_matched = FALSE;
3126 /* Don't bother constructing the protocol tree */
3127 epan_dissect_init(&edt, FALSE, FALSE);
3128 /* Get the column information */
3129 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
3131 /* Find the Info column */
3132 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3133 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3134 /* Found it. See if we match. */
3135 info_column = edt.pi.cinfo->col_data[colx];
3136 info_column_len = strlen(info_column);
3137 for (i = 0; i < info_column_len; i++) {
3138 c_char = info_column[i];
3140 c_char = toupper(c_char);
3141 if (c_char == string[c_match]) {
3143 if (c_match == string_len) {
3144 frame_matched = TRUE;
3153 epan_dissect_cleanup(&edt);
3154 return frame_matched;
3160 } cbs_t; /* "Counted byte string" */
3163 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
3168 info.data_len = string_size;
3170 /* String or hex search? */
3172 /* String search - what type of string? */
3173 switch (cf->scs_type) {
3175 case SCS_ASCII_AND_UNICODE:
3176 return find_packet(cf, match_ascii_and_unicode, &info);
3179 return find_packet(cf, match_ascii, &info);
3182 return find_packet(cf, match_unicode, &info);
3185 g_assert_not_reached();
3189 return find_packet(cf, match_binary, &info);
3193 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3195 cbs_t *info = criterion;
3196 const guint8 *ascii_text = info->data;
3197 size_t textlen = info->data_len;
3198 gboolean frame_matched;
3204 frame_matched = FALSE;
3205 buf_len = fdata->pkt_len;
3206 for (i = 0; i < buf_len; i++) {
3209 c_char = toupper(c_char);
3211 if (c_char == ascii_text[c_match]) {
3213 if (c_match == textlen) {
3214 frame_matched = TRUE;
3215 cf->search_pos = i; /* Save the position of the last character
3216 for highlighting the field. */
3223 return frame_matched;
3227 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
3229 cbs_t *info = criterion;
3230 const guint8 *ascii_text = info->data;
3231 size_t textlen = info->data_len;
3232 gboolean frame_matched;
3238 frame_matched = FALSE;
3239 buf_len = fdata->pkt_len;
3240 for (i = 0; i < buf_len; i++) {
3243 c_char = toupper(c_char);
3244 if (c_char == ascii_text[c_match]) {
3246 if (c_match == textlen) {
3247 frame_matched = TRUE;
3248 cf->search_pos = i; /* Save the position of the last character
3249 for highlighting the field. */
3255 return frame_matched;
3259 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
3261 cbs_t *info = criterion;
3262 const guint8 *ascii_text = info->data;
3263 size_t textlen = info->data_len;
3264 gboolean frame_matched;
3270 frame_matched = FALSE;
3271 buf_len = fdata->pkt_len;
3272 for (i = 0; i < buf_len; i++) {
3275 c_char = toupper(c_char);
3276 if (c_char == ascii_text[c_match]) {
3279 if (c_match == textlen) {
3280 frame_matched = TRUE;
3281 cf->search_pos = i; /* Save the position of the last character
3282 for highlighting the field. */
3288 return frame_matched;
3292 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3294 cbs_t *info = criterion;
3295 const guint8 *binary_data = info->data;
3296 size_t datalen = info->data_len;
3297 gboolean frame_matched;
3302 frame_matched = FALSE;
3303 buf_len = fdata->pkt_len;
3304 for (i = 0; i < buf_len; i++) {
3305 if (cf->pd[i] == binary_data[c_match]) {
3307 if (c_match == datalen) {
3308 frame_matched = TRUE;
3309 cf->search_pos = i; /* Save the position of the last character
3310 for highlighting the field. */
3316 return frame_matched;
3320 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
3322 return find_packet(cf, match_dfilter, sfcode);
3326 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3328 dfilter_t *sfcode = criterion;
3330 gboolean frame_matched;
3332 epan_dissect_init(&edt, TRUE, FALSE);
3333 epan_dissect_prime_dfilter(&edt, sfcode);
3334 epan_dissect_run(&edt, &cf->pseudo_header, cf->pd, fdata, NULL);
3335 frame_matched = dfilter_apply_edt(sfcode, &edt);
3336 epan_dissect_cleanup(&edt);
3337 return frame_matched;
3341 find_packet(capture_file *cf,
3342 gboolean (*match_function)(capture_file *, frame_data *, void *),
3345 frame_data *start_fd;
3347 frame_data *new_fd = NULL;
3348 progdlg_t *progbar = NULL;
3355 GTimeVal start_time;
3356 gchar status_str[100];
3357 int progbar_nextstep;
3358 int progbar_quantum;
3361 start_fd = cf->current_frame;
3362 if (start_fd != NULL) {
3363 /* Iterate through the list of packets, starting at the packet we've
3364 picked, calling a routine to run the filter on the packet, see if
3365 it matches, and stop if so. */
3369 /* Update the progress bar when it gets to this value. */
3370 progbar_nextstep = 0;
3371 /* When we reach the value that triggers a progress bar update,
3372 bump that value by this amount. */
3373 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3374 /* Progress so far. */
3378 g_get_current_time(&start_time);
3381 title = cf->sfilter?cf->sfilter:"";
3383 /* Create the progress bar if necessary.
3384 We check on every iteration of the loop, so that it takes no
3385 longer than the standard time to create it (otherwise, for a
3386 large file, we might take considerably longer than that standard
3387 time in order to get to the next progress bar step). */
3388 if (progbar == NULL)
3389 progbar = delayed_create_progress_dlg("Searching", title,
3390 FALSE, &stop_flag, &start_time, progbar_val);
3392 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3393 when we update it, we have to run the GTK+ main loop to get it
3394 to repaint what's pending, and doing so may involve an "ioctl()"
3395 to see if there's any pending input from an X server, and doing
3396 that for every packet can be costly, especially on a big file. */
3397 if (count >= progbar_nextstep) {
3398 /* let's not divide by zero. I should never be started
3399 * with count == 0, so let's assert that
3401 g_assert(cf->count > 0);
3403 progbar_val = (gfloat) count / cf->count;
3405 if (progbar != NULL) {
3406 g_snprintf(status_str, sizeof(status_str),
3407 "%4u of %u packets", count, cf->count);
3408 update_progress_dlg(progbar, progbar_val, status_str);
3411 progbar_nextstep += progbar_quantum;
3415 /* Well, the user decided to abort the search. Go back to the
3416 frame where we started. */
3421 /* Go past the current frame. */
3422 if (cf->sbackward) {
3423 /* Go on to the previous frame. */
3424 fdata = fdata->prev;
3425 if (fdata == NULL) {
3427 * XXX - other apps have a bit more of a detailed message
3428 * for this, and instead of offering "OK" and "Cancel",
3429 * they offer things such as "Continue" and "Cancel";
3430 * we need an API for popping up alert boxes with
3431 * {Verb} and "Cancel".
3434 if (prefs.gui_find_wrap)
3436 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3437 "%sBeginning of capture exceeded!%s\n\n"
3438 "Search is continued from the end of the capture.",
3439 simple_dialog_primary_start(), simple_dialog_primary_end());
3440 fdata = cf->plist_end; /* wrap around */
3444 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3445 "%sBeginning of capture exceeded!%s\n\n"
3446 "Try searching forwards.",
3447 simple_dialog_primary_start(), simple_dialog_primary_end());
3448 fdata = start_fd; /* stay on previous packet */
3452 /* Go on to the next frame. */
3453 fdata = fdata->next;
3454 if (fdata == NULL) {
3455 if (prefs.gui_find_wrap)
3457 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3458 "%sEnd of capture exceeded!%s\n\n"
3459 "Search is continued from the start of the capture.",
3460 simple_dialog_primary_start(), simple_dialog_primary_end());
3461 fdata = cf->plist; /* wrap around */
3465 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3466 "%sEnd of capture exceeded!%s\n\n"
3467 "Try searching backwards.",
3468 simple_dialog_primary_start(), simple_dialog_primary_end());
3469 fdata = start_fd; /* stay on previous packet */
3476 /* Is this packet in the display? */
3477 if (fdata->flags.passed_dfilter) {
3478 /* Yes. Load its data. */
3479 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
3480 cf->pd, fdata->cap_len, &err, &err_info)) {
3481 /* Read error. Report the error, and go back to the frame
3482 where we started. */
3483 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3484 cf_read_error_message(err, err_info), cf->filename);
3489 /* Does it match the search criterion? */
3490 if ((*match_function)(cf, fdata, criterion)) {
3492 break; /* found it! */
3496 if (fdata == start_fd) {
3497 /* We're back to the frame we were on originally, and that frame
3498 doesn't match the search filter. The search failed. */
3503 /* We're done scanning the packets; destroy the progress bar if it
3505 if (progbar != NULL)
3506 destroy_progress_dlg(progbar);
3509 if (new_fd != NULL) {
3510 #ifdef NEW_PACKET_LIST
3511 /* Find and select */
3512 row = new_packet_list_find_row_from_data(fdata, TRUE);
3514 /* We found a frame. Find what row it's in. */
3515 row = packet_list_find_row_from_data(new_fd);
3516 #endif /* NEW_PACKET_LIST */
3518 /* We didn't find a row even though we know that a frame
3519 * exists that satifies the search criteria. This means that the
3520 * frame isn't being displayed currently so we can't select it. */
3521 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
3522 "%sEnd of capture exceeded!%s\n\n"
3523 "The capture file is probably not fully loaded.",
3524 simple_dialog_primary_start(), simple_dialog_primary_end());
3528 #ifndef NEW_PACKET_LIST
3529 /* Select that row, make it the focus row, and make it visible. */
3530 packet_list_set_selected_row(row);
3531 #endif /* NEW_PACKET_LIST */
3532 return TRUE; /* success */
3534 return FALSE; /* failure */
3538 cf_goto_frame(capture_file *cf, guint fnumber)
3543 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
3546 if (fdata == NULL) {
3547 /* we didn't find a packet with that packet number */
3548 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3549 "There is no packet with the packet number %u.", fnumber);
3550 return FALSE; /* we failed to go to that packet */
3552 if (!fdata->flags.passed_dfilter) {
3553 /* that packet currently isn't displayed */
3554 /* XXX - add it to the set of displayed packets? */
3555 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3556 "The packet number %u isn't currently being displayed.", fnumber);
3557 return FALSE; /* we failed to go to that packet */
3560 #ifdef NEW_PACKET_LIST
3561 row = new_packet_list_find_row_from_data(fdata, TRUE);
3563 /* We found that packet, and it's currently being displayed.
3564 Find what row it's in. */
3565 row = packet_list_find_row_from_data(fdata);
3566 g_assert(row != -1);
3568 /* Select that row, make it the focus row, and make it visible. */
3569 packet_list_set_selected_row(row);
3570 #endif /* NEW_PACKET_LIST */
3571 return TRUE; /* we got to that packet */
3575 cf_goto_top_frame(capture_file *cf _U_)
3577 #ifdef NEW_PACKET_LIST
3578 /* Find and select */
3579 new_packet_list_select_first_row();
3583 frame_data *lowest_fdata = NULL;
3585 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3586 if (fdata->flags.passed_dfilter) {
3587 lowest_fdata = fdata;
3592 if (lowest_fdata == NULL) {
3596 /* We found that packet, and it's currently being displayed.
3597 Find what row it's in. */
3598 row = packet_list_find_row_from_data(lowest_fdata);
3599 g_assert(row != -1);
3601 /* Select that row, make it the focus row, and make it visible. */
3602 packet_list_set_selected_row(row);
3603 #endif /* NEW_PACKET_LIST */
3604 return TRUE; /* we got to that packet */
3608 cf_goto_bottom_frame(capture_file *cf _U_) /* cf is unused w/ NEW_PACKET_LIST */
3610 #ifdef NEW_PACKET_LIST
3611 /* Find and select */
3612 new_packet_list_select_last_row();
3616 frame_data *highest_fdata = NULL;
3618 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
3619 if (fdata->flags.passed_dfilter) {
3620 highest_fdata = fdata;
3624 if (highest_fdata == NULL) {
3628 /* We found that packet, and it's currently being displayed.
3629 Find what row it's in. */
3630 row = packet_list_find_row_from_data(highest_fdata);
3631 g_assert(row != -1);
3633 /* Select that row, make it the focus row, and make it visible. */
3634 packet_list_set_selected_row(row);
3635 #endif /* NEW_PACKET_LIST */
3636 return TRUE; /* we got to that packet */
3640 * Go to frame specified by currently selected protocol tree item.
3643 cf_goto_framenum(capture_file *cf)
3645 header_field_info *hfinfo;
3648 if (cf->finfo_selected) {
3649 hfinfo = cf->finfo_selected->hfinfo;
3651 if (hfinfo->type == FT_FRAMENUM) {
3652 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3654 return cf_goto_frame(cf, framenum);
3661 /* Select the packet on a given row. */
3663 cf_select_packet(capture_file *cf, int row)
3669 /* Get the frame data struct pointer for this frame */
3670 #ifdef NEW_PACKET_LIST
3671 fdata = new_packet_list_get_row_data(row);
3673 fdata = (frame_data *)packet_list_get_row_data(row);
3676 if (fdata == NULL) {
3677 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3678 the first entry is added to it by "real_insert_row()", that row
3679 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3680 our version and the vanilla GTK+ version).
3682 This means that a "select-row" signal is emitted; this causes
3683 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3686 "cf_select_packet()" fetches, above, the data associated with the
3687 row that was selected; however, as "gtk_clist_append()", which
3688 called "real_insert_row()", hasn't yet returned, we haven't yet
3689 associated any data with that row, so we get back a null pointer.
3691 We can't assume that there's only one frame in the frame list,
3692 either, as we may be filtering the display.
3694 We therefore assume that, if "row" is 0, i.e. the first row
3695 is being selected, and "cf->first_displayed" equals
3696 "cf->last_displayed", i.e. there's only one frame being
3697 displayed, that frame is the frame we want.
3699 This means we have to set "cf->first_displayed" and
3700 "cf->last_displayed" before adding the row to the
3701 GtkCList; see the comment in "add_packet_to_packet_list()". */
3703 if (row == 0 && cf->first_displayed == cf->last_displayed)
3704 fdata = cf->first_displayed;
3707 /* If fdata _still_ isn't set simply give up. */
3708 if (fdata == NULL) {
3712 /* Get the data in that frame. */
3713 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
3714 cf->pd, fdata->cap_len, &err, &err_info)) {
3715 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3716 cf_read_error_message(err, err_info), cf->filename);
3720 /* Record that this frame is the current frame. */
3721 cf->current_frame = fdata;
3722 cf->current_row = row;
3724 /* Create the logical protocol tree. */
3725 if (cf->edt != NULL)
3726 epan_dissect_free(cf->edt);
3728 /* We don't need the columns here. */
3729 cf->edt = epan_dissect_new(TRUE, TRUE);
3731 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3734 dfilter_macro_build_ftv_cache(cf->edt->tree);
3736 cf_callback_invoke(cf_cb_packet_selected, cf);
3739 /* Unselect the selected packet, if any. */
3741 cf_unselect_packet(capture_file *cf)
3743 /* Destroy the epan_dissect_t for the unselected packet. */
3744 if (cf->edt != NULL) {
3745 epan_dissect_free(cf->edt);
3749 /* No packet is selected. */
3750 cf->current_frame = NULL;
3751 cf->current_row = 0;
3753 cf_callback_invoke(cf_cb_packet_unselected, cf);
3755 /* No protocol tree means no selected field. */
3756 cf_unselect_field(cf);
3759 /* Unset the selected protocol tree field, if any. */
3761 cf_unselect_field(capture_file *cf)
3763 cf->finfo_selected = NULL;
3765 cf_callback_invoke(cf_cb_field_unselected, cf);
3769 * Mark a particular frame.
3772 cf_mark_frame(capture_file *cf, frame_data *frame)
3774 if (! frame->flags.marked) {
3775 frame->flags.marked = TRUE;
3776 if (cf->count > cf->marked_count)
3782 * Unmark a particular frame.
3785 cf_unmark_frame(capture_file *cf, frame_data *frame)
3787 if (frame->flags.marked) {
3788 frame->flags.marked = FALSE;
3789 if (cf->marked_count > 0)
3797 } save_callback_args_t;
3800 * Save a capture to a file, in a particular format, saving either
3801 * all packets, all currently-displayed packets, or all marked packets.
3803 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3804 * up a message box for the failure.
3807 save_packet(capture_file *cf _U_, frame_data *fdata,
3808 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3811 save_callback_args_t *args = argsp;
3812 struct wtap_pkthdr hdr;
3815 /* init the wtap header for saving */
3816 hdr.ts.secs = fdata->abs_ts.secs;
3817 hdr.ts.nsecs = fdata->abs_ts.nsecs;
3818 hdr.caplen = fdata->cap_len;
3819 hdr.len = fdata->pkt_len;
3820 hdr.pkt_encap = fdata->lnk_t;
3822 /* and save the packet */
3823 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3824 cf_write_failure_alert_box(args->fname, err);
3831 * Can this capture file be saved in any format except by copying the raw data?
3834 cf_can_save_as(capture_file *cf)
3838 for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
3839 /* To save a file with Wiretap, Wiretap has to handle that format,
3840 and its code to handle that format must be able to write a file
3841 with this file's encapsulation type. */
3842 if (wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cf->lnk_t)) {
3843 /* OK, we can write it out in this type. */
3848 /* No, we couldn't save it in any format. */
3853 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3855 gchar *from_filename;
3859 save_callback_args_t callback_args;
3861 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
3863 /* don't write over an existing file. */
3864 /* this should've been already checked by our caller, just to be sure... */
3865 if (file_exists(fname)) {
3866 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3867 "%sCapture file: \"%s\" already exists!%s\n\n"
3868 "Please choose a different filename.",
3869 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3873 packet_range_process_init(range);
3876 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3877 /* We're not filtering packets, and we're saving it in the format
3878 it's already in, so we can just move or copy the raw data. */
3880 if (cf->is_tempfile) {
3881 /* The file being saved is a temporary file from a live
3882 capture, so it doesn't need to stay around under that name;
3883 first, try renaming the capture buffer file to the new name. */
3885 if (ws_rename(cf->filename, fname) == 0) {
3886 /* That succeeded - there's no need to copy the source file. */
3887 from_filename = NULL;
3890 if (errno == EXDEV) {
3891 /* They're on different file systems, so we have to copy the
3894 from_filename = cf->filename;
3896 /* The rename failed, but not because they're on different
3897 file systems - put up an error message. (Or should we
3898 just punt and try to copy? The only reason why I'd
3899 expect the rename to fail and the copy to succeed would
3900 be if we didn't have permission to remove the file from
3901 the temporary directory, and that might be fixable - but
3902 is it worth requiring the user to go off and fix it?) */
3903 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3904 file_rename_error_message(errno), fname);
3910 from_filename = cf->filename;
3913 /* It's a permanent file, so we should copy it, and not remove the
3916 from_filename = cf->filename;
3920 /* Copy the file, if we haven't moved it. */
3921 if (!copy_file_binary_mode(from_filename, fname))
3925 /* Either we're filtering packets, or we're saving in a different
3926 format; we can't do that by copying or moving the capture file,
3927 we have to do it by writing the packets out in Wiretap. */
3928 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3931 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3935 /* XXX - we let the user save a subset of the packets.
3937 If we do that, should we make that file the current file? If so,
3938 it means we can no longer get at the other packets. What does
3941 /* Iterate through the list of packets, processing the packets we were
3944 XXX - we've already called "packet_range_process_init(range)", but
3945 "process_specified_packets()" will do it again. Fortunately,
3946 that's harmless in this case, as we haven't done anything to
3947 "range" since we initialized it. */
3948 callback_args.pdh = pdh;
3949 callback_args.fname = fname;
3950 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3951 TRUE, save_packet, &callback_args)) {
3954 /* Completed successfully. */
3958 /* The user decided to abort the saving.
3959 XXX - remove the output file? */
3963 /* Error while saving. */
3964 wtap_dump_close(pdh, &err);
3968 if (!wtap_dump_close(pdh, &err)) {
3969 cf_close_failure_alert_box(fname, err);
3974 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
3976 if (packet_range_process_all(range)) {
3977 /* We saved the entire capture, not just some packets from it.
3978 Open and read the file we saved it to.
3980 XXX - this is somewhat of a waste; we already have the
3981 packets, all this gets us is updated file type information
3982 (which we could just stuff into "cf"), and having the new
3983 file be the one we have opened and from which we're reading
3984 the data, and it means we have to spend time opening and
3985 reading the file, which could be a significant amount of
3986 time if the file is large. */
3987 cf->user_saved = TRUE;
3989 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3990 /* XXX - report errors if this fails?
3991 What should we return if it fails or is aborted? */
3992 switch (cf_read(cf)) {
3996 /* Just because we got an error, that doesn't mean we were unable
3997 to read any of the file; we handle what we could get from the
4001 case CF_READ_ABORTED:
4002 /* The user bailed out of re-reading the capture file; the
4003 capture file has been closed - just return (without
4004 changing any menu settings; "cf_close()" set them
4005 correctly for the "no capture file open" state). */
4008 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
4014 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
4019 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4020 gboolean for_writing, int file_type)
4023 /* Wiretap error. */
4026 case WTAP_ERR_NOT_REGULAR_FILE:
4027 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4028 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4032 case WTAP_ERR_RANDOM_OPEN_PIPE:
4033 /* Seen only when opening a capture file for reading. */
4034 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4035 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.",
4039 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4040 /* Seen only when opening a capture file for reading. */
4041 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4042 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4046 case WTAP_ERR_UNSUPPORTED:
4047 /* Seen only when opening a capture file for reading. */
4048 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4049 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4051 filename, err_info);
4055 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4056 /* Seen only when opening a capture file for writing. */
4057 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4058 "The file \"%s\" is a pipe, and %s capture files can't be "
4059 "written to a pipe.",
4060 filename, wtap_file_type_string(file_type));
4063 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4064 /* Seen only when opening a capture file for writing. */
4065 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4066 "Wireshark doesn't support writing capture files in that format.");
4069 case WTAP_ERR_UNSUPPORTED_ENCAP:
4071 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4072 "Wireshark can't save this capture in that format.");
4074 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4075 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
4077 filename, err_info);
4082 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4084 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4085 "Wireshark can't save this capture in that format.");
4087 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4088 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
4093 case WTAP_ERR_BAD_RECORD:
4094 /* Seen only when opening a capture file for reading. */
4095 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4096 "The file \"%s\" appears to be damaged or corrupt.\n"
4098 filename, err_info);
4102 case WTAP_ERR_CANT_OPEN:
4104 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4105 "The file \"%s\" could not be created for some unknown reason.",
4108 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4109 "The file \"%s\" could not be opened for some unknown reason.",
4114 case WTAP_ERR_SHORT_READ:
4115 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4116 "The file \"%s\" appears to have been cut short"
4117 " in the middle of a packet or other data.",
4121 case WTAP_ERR_SHORT_WRITE:
4122 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4123 "A full header couldn't be written to the file \"%s\".",
4127 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
4128 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4129 "Gzip compression not supported by this file type.");
4133 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4134 "The file \"%s\" could not be %s: %s.",
4136 for_writing ? "created" : "opened",
4137 wtap_strerror(err));
4142 open_failure_alert_box(filename, err, for_writing);
4147 file_rename_error_message(int err)
4150 static char errmsg_errno[1024+1];
4155 errmsg = "The path to the file \"%s\" doesn't exist.";
4159 errmsg = "You don't have permission to move the capture file to \"%s\".";
4163 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4164 "The file \"%%s\" could not be moved: %s.",
4165 wtap_strerror(err));
4166 errmsg = errmsg_errno;
4173 cf_read_error_message(int err, gchar *err_info)
4175 static char errmsg_errno[1024+1];
4179 case WTAP_ERR_UNSUPPORTED_ENCAP:
4180 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4181 "The file \"%%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
4186 case WTAP_ERR_BAD_RECORD:
4187 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4188 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
4189 wtap_strerror(err), err_info);
4194 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
4195 "An error occurred while reading from the file \"%%s\": %s.",
4196 wtap_strerror(err));
4199 return errmsg_errno;
4203 cf_write_failure_alert_box(const char *filename, int err)
4206 /* Wiretap error. */
4207 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4208 "An error occurred while writing to the file \"%s\": %s.",
4209 filename, wtap_strerror(err));
4212 write_failure_alert_box(filename, err);
4216 /* Check for write errors - if the file is being written to an NFS server,
4217 a write error may not show up until the file is closed, as NFS clients
4218 might not send writes to the server until the "write()" call finishes,
4219 so that the write may fail on the server but the "write()" may succeed. */
4221 cf_close_failure_alert_box(const char *filename, int err)
4224 /* Wiretap error. */
4227 case WTAP_ERR_CANT_CLOSE:
4228 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4229 "The file \"%s\" couldn't be closed for some unknown reason.",
4233 case WTAP_ERR_SHORT_WRITE:
4234 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4235 "Not all the packets could be written to the file \"%s\".",
4240 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
4241 "An error occurred while closing the file \"%s\": %s.",
4242 filename, wtap_strerror(err));
4247 We assume that a close error from the OS is really a write error. */
4248 write_failure_alert_box(filename, err);
4252 /* Reload the current capture file. */
4254 cf_reload(capture_file *cf) {
4256 gboolean is_tempfile;
4259 /* If the file could be opened, "cf_open()" calls "cf_close()"
4260 to get rid of state for the old capture file before filling in state
4261 for the new capture file. "cf_close()" will remove the file if
4262 it's a temporary file; we don't want that to happen (for one thing,
4263 it'd prevent subsequent reopens from working). Remember whether it's
4264 a temporary file, mark it as not being a temporary file, and then
4265 reopen it as the type of file it was.
4267 Also, "cf_close()" will free "cf->filename", so we must make
4268 a copy of it first. */
4269 filename = g_strdup(cf->filename);
4270 is_tempfile = cf->is_tempfile;
4271 cf->is_tempfile = FALSE;
4272 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
4273 switch (cf_read(cf)) {
4277 /* Just because we got an error, that doesn't mean we were unable
4278 to read any of the file; we handle what we could get from the
4282 case CF_READ_ABORTED:
4283 /* The user bailed out of re-reading the capture file; the
4284 capture file has been closed - just free the capture file name
4285 string and return (without changing the last containing
4291 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
4292 Instead, the file was left open, so we should restore "cf->is_tempfile"
4295 XXX - change the menu? Presumably "cf_open()" will do that;
4296 make sure it does! */
4297 cf->is_tempfile = is_tempfile;
4299 /* "cf_open()" made a copy of the file name we handed it, so
4300 we should free up our copy. */