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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
44 #include <wsutil/tempfile.h>
45 #include <wsutil/file_util.h>
47 #include <wiretap/merge.h>
49 #include <epan/epan-int.h>
50 #include <epan/epan.h>
51 #include <epan/column.h>
52 #include <epan/packet.h>
53 #include <epan/column-utils.h>
54 #include <epan/expert.h>
55 #include <epan/filesystem.h>
56 #include <epan/prefs.h>
57 #include <epan/dfilter/dfilter.h>
58 #include <epan/epan_dissect.h>
60 #include <epan/dissectors/packet-data.h>
61 #include <epan/dissectors/packet-ber.h>
62 #include <epan/timestamp.h>
63 #include <epan/dfilter/dfilter-macro.h>
64 #include <epan/strutil.h>
65 #include <epan/addr_resolv.h>
68 #include "color_filters.h"
72 #include "frame_tvbuff.h"
74 #include "ui/alert_box.h"
75 #include "ui/simple_dialog.h"
76 #include "ui/main_statusbar.h"
77 #include "ui/progress_dlg.h"
78 #include "ui/ui_util.h"
80 #include "version_info.h"
82 /* Needed for addrinfo */
83 #ifdef HAVE_SYS_TYPES_H
84 # include <sys/types.h>
87 #ifdef HAVE_SYS_SOCKET_H
88 #include <sys/socket.h>
91 #ifdef HAVE_NETINET_IN_H
92 # include <netinet/in.h>
99 #ifdef HAVE_WINSOCK2_H
100 # include <winsock2.h>
103 #if defined(_WIN32) && defined(INET6)
104 # include <ws2tcpip.h>
108 gboolean auto_scroll_live;
111 static void cf_reset_state(capture_file *cf);
113 static int read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
114 column_info *cinfo, gint64 offset);
116 static void rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect);
123 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
125 static void match_subtree_text(proto_node *node, gpointer data);
126 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
128 static match_result match_narrow_and_wide(capture_file *cf, frame_data *fdata,
130 static match_result match_narrow(capture_file *cf, frame_data *fdata,
132 static match_result match_wide(capture_file *cf, frame_data *fdata,
134 static match_result match_binary(capture_file *cf, frame_data *fdata,
136 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
138 static match_result match_marked(capture_file *cf, frame_data *fdata,
140 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
142 static gboolean find_packet(capture_file *cf,
143 match_result (*match_function)(capture_file *, frame_data *, void *),
144 void *criterion, search_direction dir);
146 static const char *cf_get_user_packet_comment(capture_file *cf, const frame_data *fd);
148 static void cf_open_failure_alert_box(const char *filename, int err,
149 gchar *err_info, gboolean for_writing,
151 static void cf_rename_failure_alert_box(const char *filename, int err);
152 static void cf_close_failure_alert_box(const char *filename, int err);
153 static void ref_time_packets(capture_file *cf);
154 /* Update the progress bar this many times when reading a file. */
155 #define N_PROGBAR_UPDATES 100
156 /* We read around 200k/100ms don't update the progress bar more often than that */
157 #define MIN_QUANTUM 200000
158 #define MIN_NUMBER_OF_PACKET 1500
161 * We could probably use g_signal_...() instead of the callbacks below but that
162 * would require linking our CLI programs to libgobject and creating an object
163 * instance for the signals.
166 cf_callback_t cb_fct;
168 } cf_callback_data_t;
170 static GList *cf_callbacks = NULL;
173 cf_callback_invoke(int event, gpointer data)
175 cf_callback_data_t *cb;
176 GList *cb_item = cf_callbacks;
178 /* there should be at least one interested */
179 g_assert(cb_item != NULL);
181 while (cb_item != NULL) {
182 cb = (cf_callback_data_t *)cb_item->data;
183 cb->cb_fct(event, data, cb->user_data);
184 cb_item = g_list_next(cb_item);
190 cf_callback_add(cf_callback_t func, gpointer user_data)
192 cf_callback_data_t *cb;
194 cb = g_new(cf_callback_data_t,1);
196 cb->user_data = user_data;
198 cf_callbacks = g_list_prepend(cf_callbacks, cb);
202 cf_callback_remove(cf_callback_t func)
204 cf_callback_data_t *cb;
205 GList *cb_item = cf_callbacks;
207 while (cb_item != NULL) {
208 cb = (cf_callback_data_t *)cb_item->data;
209 if (cb->cb_fct == func) {
210 cf_callbacks = g_list_remove(cf_callbacks, cb);
214 cb_item = g_list_next(cb_item);
217 g_assert_not_reached();
221 cf_timestamp_auto_precision(capture_file *cf)
224 int prec = timestamp_get_precision();
227 /* don't try to get the file's precision if none is opened */
228 if (cf->state == FILE_CLOSED) {
232 /* if we are in auto mode, set precision of current file */
233 if (prec == TS_PREC_AUTO ||
234 prec == TS_PREC_AUTO_SEC ||
235 prec == TS_PREC_AUTO_DSEC ||
236 prec == TS_PREC_AUTO_CSEC ||
237 prec == TS_PREC_AUTO_MSEC ||
238 prec == TS_PREC_AUTO_USEC ||
239 prec == TS_PREC_AUTO_NSEC)
241 switch(wtap_file_tsprecision(cf->wth)) {
242 case(WTAP_FILE_TSPREC_SEC):
243 timestamp_set_precision(TS_PREC_AUTO_SEC);
245 case(WTAP_FILE_TSPREC_DSEC):
246 timestamp_set_precision(TS_PREC_AUTO_DSEC);
248 case(WTAP_FILE_TSPREC_CSEC):
249 timestamp_set_precision(TS_PREC_AUTO_CSEC);
251 case(WTAP_FILE_TSPREC_MSEC):
252 timestamp_set_precision(TS_PREC_AUTO_MSEC);
254 case(WTAP_FILE_TSPREC_USEC):
255 timestamp_set_precision(TS_PREC_AUTO_USEC);
257 case(WTAP_FILE_TSPREC_NSEC):
258 timestamp_set_precision(TS_PREC_AUTO_NSEC);
261 g_assert_not_reached();
264 /* Set the column widths of those columns that show the time in
265 "command-line-specified" format. */
266 for (i = 0; i < cf->cinfo.num_cols; i++) {
267 if (col_has_time_fmt(&cf->cinfo, i)) {
268 packet_list_resize_column(i);
274 cf_get_computed_elapsed(capture_file *cf)
276 return cf->computed_elapsed;
280 * GLIB_CHECK_VERSION(2,28,0) adds g_get_real_time which could minimize or
283 static void compute_elapsed(capture_file *cf, GTimeVal *start_time)
288 g_get_current_time(&time_now);
290 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
291 time_now.tv_usec - start_time->tv_usec;
293 cf->computed_elapsed = (gulong) (delta_time / 1000); /* ms */
296 static const nstime_t *
297 ws_get_frame_ts(void *data, guint32 frame_num)
299 capture_file *cf = (capture_file *) data;
301 if (cf->prev_dis && cf->prev_dis->num == frame_num)
302 return &cf->prev_dis->abs_ts;
304 if (cf->prev_cap && cf->prev_cap->num == frame_num)
305 return &cf->prev_cap->abs_ts;
308 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
310 return (fd) ? &fd->abs_ts : NULL;
317 ws_get_user_comment(void *data, const frame_data *fd)
319 capture_file *cf = (capture_file *) data;
321 return cf_get_user_packet_comment(cf, fd);
325 ws_epan_new(capture_file *cf)
327 epan_t *epan = epan_new();
330 epan->get_frame_ts = ws_get_frame_ts;
331 epan->get_interface_name = cap_file_get_interface_name;
332 epan->get_user_comment = ws_get_user_comment;
338 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
343 wth = wtap_open_offline(fname, err, &err_info, TRUE);
347 /* The open succeeded. Close whatever capture file we had open,
348 and fill in the information for this file. */
351 /* XXX - we really want to initialize this after we've read all
352 the packets, so we know how much we'll ultimately need. */
353 buffer_init(&cf->buf, 1500);
355 /* Create new epan session for dissection.
356 * (The old one was freed in cf_close().)
358 cf->epan = ws_epan_new(cf);
360 /* We're about to start reading the file. */
361 cf->state = FILE_READ_IN_PROGRESS;
366 /* Set the file name because we need it to set the follow stream filter.
367 XXX - is that still true? We need it for other reasons, though,
369 cf->filename = g_strdup(fname);
371 /* Indicate whether it's a permanent or temporary file. */
372 cf->is_tempfile = is_tempfile;
374 /* No user changes yet. */
375 cf->unsaved_changes = FALSE;
377 cf->computed_elapsed = 0;
379 cf->cd_t = wtap_file_type(cf->wth);
380 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
382 cf->packet_comment_count = 0;
383 cf->displayed_count = 0;
384 cf->marked_count = 0;
385 cf->ignored_count = 0;
386 cf->ref_time_count = 0;
387 cf->drops_known = FALSE;
389 cf->snap = wtap_snapshot_length(cf->wth);
391 /* Snapshot length not known. */
392 cf->has_snap = FALSE;
393 cf->snap = WTAP_MAX_PACKET_SIZE;
397 /* Allocate a frame_data_sequence for the frames in this file */
398 cf->frames = new_frame_data_sequence();
400 nstime_set_zero(&cf->elapsed_time);
406 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
407 cf_timestamp_auto_precision(cf);
409 packet_list_queue_draw();
410 cf_callback_invoke(cf_cb_file_opened, cf);
412 if (cf->cd_t == WTAP_FILE_BER) {
413 /* tell the BER dissector the file name */
414 ber_set_filename(cf->filename);
417 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
418 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
423 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
428 * Add an encapsulation type to cf->linktypes.
431 cf_add_encapsulation_type(capture_file *cf, int encap)
435 for (i = 0; i < cf->linktypes->len; i++) {
436 if (g_array_index(cf->linktypes, gint, i) == encap)
437 return; /* it's already there */
439 /* It's not already there - add it. */
440 g_array_append_val(cf->linktypes, encap);
444 * Reset the state for the currently closed file, but don't do the
445 * UI callbacks; this is for use in "cf_open()", where we don't
446 * want the UI to go from "file open" to "file closed" back to
447 * "file open", we want it to go from "old file open" to "new file
448 * open and being read".
450 * XXX - currently, cf_open() calls cf_close(), rather than
454 cf_reset_state(capture_file *cf)
456 /* Die if we're in the middle of reading a file. */
457 g_assert(cf->state != FILE_READ_IN_PROGRESS);
463 /* We have no file open... */
464 if (cf->filename != NULL) {
465 /* If it's a temporary file, remove it. */
467 ws_unlink(cf->filename);
468 g_free(cf->filename);
471 /* ...which means we have no changes to that file to save. */
472 cf->unsaved_changes = FALSE;
474 /* Free up the packet buffer. */
475 buffer_free(&cf->buf);
477 dfilter_free(cf->rfcode);
479 if (cf->frames != NULL) {
480 free_frame_data_sequence(cf->frames);
483 #ifdef WANT_PACKET_EDITOR
484 if (cf->edited_frames) {
485 g_tree_destroy(cf->edited_frames);
486 cf->edited_frames = NULL;
489 if (cf->frames_user_comments) {
490 g_tree_destroy(cf->frames_user_comments);
491 cf->frames_user_comments = NULL;
493 cf_unselect_packet(cf); /* nothing to select */
494 cf->first_displayed = 0;
495 cf->last_displayed = 0;
497 /* No frames, no frame selected, no field in that frame selected. */
499 cf->current_frame = 0;
501 cf->finfo_selected = NULL;
503 /* No frame link-layer types, either. */
504 g_array_free(cf->linktypes, TRUE);
505 cf->linktypes = NULL;
507 /* Clear the packet list. */
508 packet_list_freeze();
513 nstime_set_zero(&cf->elapsed_time);
515 reset_tap_listeners();
517 /* We have no file open. */
518 cf->state = FILE_CLOSED;
521 /* Reset everything to a pristine state */
523 cf_close(capture_file *cf)
525 if (cf->state != FILE_CLOSED) {
526 cf_callback_invoke(cf_cb_file_closing, cf);
528 /* close things, if not already closed before */
529 color_filters_cleanup();
534 cf_callback_invoke(cf_cb_file_closed, cf);
539 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
543 progbar_val = (gfloat) file_pos / (gfloat) size;
544 if (progbar_val > 1.0) {
546 /* The file probably grew while we were reading it.
547 * Update file size, and try again.
549 size = wtap_file_size(cf->wth, NULL);
552 progbar_val = (gfloat) file_pos / (gfloat) size;
554 /* If it's still > 1, either "wtap_file_size()" failed (in which
555 * case there's not much we can do about it), or the file
556 * *shrank* (in which case there's not much we can do about
557 * it); just clip the progress value at 1.0.
559 if (progbar_val > 1.0f)
563 g_snprintf(status_str, status_size,
564 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
565 file_pos / 1024, size / 1024);
571 cf_read(capture_file *cf, gboolean reloading)
576 progdlg_t *progbar = NULL;
581 volatile gboolean create_proto_tree;
585 /* Compile the current display filter.
586 * We assume this will not fail since cf->dfilter is only set in
587 * cf_filter IFF the filter was valid.
589 compiled = dfilter_compile(cf->dfilter, &dfcode);
590 g_assert(!cf->dfilter || (compiled && dfcode));
592 /* Get the union of the flags for all tap listeners. */
593 tap_flags = union_of_tap_listener_flags();
595 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
597 reset_tap_listeners();
599 name_ptr = g_filename_display_basename(cf->filename);
602 cf_callback_invoke(cf_cb_file_reload_started, cf);
604 cf_callback_invoke(cf_cb_file_read_started, cf);
606 /* Record whether the file is compressed.
607 XXX - do we know this at open time? */
608 cf->iscompressed = wtap_iscompressed(cf->wth);
610 /* The packet list window will be empty until the file is completly loaded */
611 packet_list_freeze();
614 g_get_current_time(&start_time);
616 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
620 int displayed_once = 0;
628 gint64 progbar_quantum;
629 gint64 progbar_nextstep;
631 gchar status_str[100];
635 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
637 /* Find the size of the file. */
638 size = wtap_file_size(cf->wth, NULL);
640 /* Update the progress bar when it gets to this value. */
641 progbar_nextstep = 0;
642 /* When we reach the value that triggers a progress bar update,
643 bump that value by this amount. */
645 progbar_quantum = size/N_PROGBAR_UPDATES;
646 if (progbar_quantum < MIN_QUANTUM)
647 progbar_quantum = MIN_QUANTUM;
651 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
654 file_pos = wtap_read_so_far(cf->wth);
656 /* Create the progress bar if necessary.
657 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
659 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
660 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
662 progbar = delayed_create_progress_dlg(cf->window, "Reloading", name_ptr,
663 TRUE, &stop_flag, &start_time, progbar_val);
665 progbar = delayed_create_progress_dlg(cf->window, "Loading", name_ptr,
666 TRUE, &stop_flag, &start_time, progbar_val);
669 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
670 when we update it, we have to run the GTK+ main loop to get it
671 to repaint what's pending, and doing so may involve an "ioctl()"
672 to see if there's any pending input from an X server, and doing
673 that for every packet can be costly, especially on a big file. */
674 if (file_pos >= progbar_nextstep) {
675 if (progbar != NULL) {
676 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
677 /* update the packet bar content on the first run or frequently on very large files */
679 if (progbar_quantum > 500000 || displayed_once == 0) {
680 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
682 packets_bar_update();
685 #endif /* HAVE_LIBPCAP */
686 update_progress_dlg(progbar, progbar_val, status_str);
688 progbar_nextstep += progbar_quantum;
693 /* Well, the user decided to abort the read. He/She will be warned and
694 it might be enough for him/her to work with the already loaded
696 This is especially true for very large capture files, where you don't
697 want to wait loading the whole file (which may last minutes or even
698 hours even on fast machines) just to see that it was the wrong file. */
701 read_packet(cf, dfcode, &edt, cinfo, data_offset);
704 CATCH(OutOfMemoryError) {
705 simple_message_box(ESD_TYPE_ERROR, NULL,
706 "Some infos / workarounds can be found at:\n"
707 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
708 "Sorry, but Wireshark has run out of memory and has to terminate now!");
710 /* Could we close the current capture and free up memory from that? */
712 /* we have to terminate, as we cannot recover from the memory error */
718 /* Free the display name */
721 /* Cleanup and release all dfilter resources */
722 if (dfcode != NULL) {
723 dfilter_free(dfcode);
726 epan_dissect_cleanup(&edt);
728 /* We're done reading the file; destroy the progress bar if it was created. */
730 destroy_progress_dlg(progbar);
732 /* We're done reading sequentially through the file. */
733 cf->state = FILE_READ_DONE;
735 /* Close the sequential I/O side, to free up memory it requires. */
736 wtap_sequential_close(cf->wth);
738 /* Allow the protocol dissectors to free up memory that they
739 * don't need after the sequential run-through of the packets. */
740 postseq_cleanup_all_protocols();
742 /* compute the time it took to load the file */
743 compute_elapsed(cf, &start_time);
745 /* Set the file encapsulation type now; we don't know what it is until
746 we've looked at all the packets, as we don't know until then whether
747 there's more than one type (and thus whether it's
748 WTAP_ENCAP_PER_PACKET). */
749 cf->lnk_t = wtap_file_encap(cf->wth);
751 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
756 cf_callback_invoke(cf_cb_file_reload_finished, cf);
758 cf_callback_invoke(cf_cb_file_read_finished, cf);
760 /* If we have any displayed packets to select, select the first of those
761 packets by making the first row the selected row. */
762 if (cf->first_displayed != 0) {
763 packet_list_select_first_row();
767 simple_message_box(ESD_TYPE_WARN, NULL,
768 "The remaining packets in the file were discarded.\n"
770 "As a lot of packets from the original file will be missing,\n"
771 "remember to be careful when saving the current content to a file.\n",
772 "File loading was cancelled!");
773 return CF_READ_ERROR;
777 /* Put up a message box noting that the read failed somewhere along
778 the line. Don't throw out the stuff we managed to read, though,
782 case WTAP_ERR_UNSUPPORTED:
783 simple_error_message_box(
784 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
789 case WTAP_ERR_UNSUPPORTED_ENCAP:
790 simple_error_message_box(
791 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
796 case WTAP_ERR_CANT_READ:
797 simple_error_message_box(
798 "An attempt to read from the capture file failed for"
799 " some unknown reason.");
802 case WTAP_ERR_SHORT_READ:
803 simple_error_message_box(
804 "The capture file appears to have been cut short"
805 " in the middle of a packet.");
808 case WTAP_ERR_BAD_FILE:
809 simple_error_message_box(
810 "The capture file appears to be damaged or corrupt.\n(%s)",
815 case WTAP_ERR_DECOMPRESS:
816 simple_error_message_box(
817 "The compressed capture file appears to be damaged or corrupt.\n"
823 simple_error_message_box(
824 "An error occurred while reading the"
825 " capture file: %s.", wtap_strerror(err));
828 return CF_READ_ERROR;
835 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
838 int newly_displayed_packets = 0;
841 gboolean create_proto_tree;
845 /* Compile the current display filter.
846 * We assume this will not fail since cf->dfilter is only set in
847 * cf_filter IFF the filter was valid.
849 compiled = dfilter_compile(cf->dfilter, &dfcode);
850 g_assert(!cf->dfilter || (compiled && dfcode));
852 /* Get the union of the flags for all tap listeners. */
853 tap_flags = union_of_tap_listener_flags();
855 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
859 packet_list_check_end();
860 /* Don't freeze/thaw the list when doing live capture */
861 /*packet_list_freeze();*/
863 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
865 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
868 gint64 data_offset = 0;
871 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
873 while (to_read != 0) {
874 wtap_cleareof(cf->wth);
875 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
878 if (cf->state == FILE_READ_ABORTED) {
879 /* Well, the user decided to exit Wireshark. Break out of the
880 loop, and let the code below (which is called even if there
881 aren't any packets left to read) exit. */
884 if (read_packet(cf, dfcode, &edt, (column_info *) cinfo, data_offset) != -1) {
885 newly_displayed_packets++;
890 CATCH(OutOfMemoryError) {
891 simple_message_box(ESD_TYPE_ERROR, NULL,
892 "Some infos / workarounds can be found at:\n"
893 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
894 "Sorry, but Wireshark has run out of memory and has to terminate now!");
896 /* Could we close the current capture and free up memory from that? */
897 return CF_READ_ABORTED;
899 /* we have to terminate, as we cannot recover from the memory error */
905 /* Update the file encapsulation; it might have changed based on the
906 packets we've read. */
907 cf->lnk_t = wtap_file_encap(cf->wth);
909 /* Cleanup and release all dfilter resources */
910 if (dfcode != NULL) {
911 dfilter_free(dfcode);
914 epan_dissect_cleanup(&edt);
916 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
917 cf->count, cf->state, *err);*/
919 /* Don't freeze/thaw the list when doing live capture */
920 /*packet_list_thaw();*/
921 /* With the new packet list the first packet
922 * isn't automatically selected.
924 if (!cf->current_frame)
925 packet_list_select_first_row();
927 /* moving to the end of the packet list - if the user requested so and
928 we have some new packets. */
929 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
930 packet_list_moveto_end();
932 if (cf->state == FILE_READ_ABORTED) {
933 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
934 so that our caller can kill off the capture child process;
935 this will cause an EOF on the pipe from the child, so
936 "cf_finish_tail()" will be called, and it will clean up
938 return CF_READ_ABORTED;
939 } else if (*err != 0) {
940 /* We got an error reading the capture file.
941 XXX - pop up a dialog box instead? */
942 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
943 wtap_strerror(*err), err_info, cf->filename);
946 return CF_READ_ERROR;
952 cf_fake_continue_tail(capture_file *cf) {
953 cf->state = FILE_READ_DONE;
957 cf_finish_tail(capture_file *cf, int *err)
964 gboolean create_proto_tree;
968 /* Compile the current display filter.
969 * We assume this will not fail since cf->dfilter is only set in
970 * cf_filter IFF the filter was valid.
972 compiled = dfilter_compile(cf->dfilter, &dfcode);
973 g_assert(!cf->dfilter || (compiled && dfcode));
975 /* Get the union of the flags for all tap listeners. */
976 tap_flags = union_of_tap_listener_flags();
977 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
979 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
981 if (cf->wth == NULL) {
983 return CF_READ_ERROR;
986 packet_list_check_end();
987 /* Don't freeze/thaw the list when doing live capture */
988 /*packet_list_freeze();*/
990 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
992 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
993 if (cf->state == FILE_READ_ABORTED) {
994 /* Well, the user decided to abort the read. Break out of the
995 loop, and let the code below (which is called even if there
996 aren't any packets left to read) exit. */
999 read_packet(cf, dfcode, &edt, cinfo, data_offset);
1002 /* Cleanup and release all dfilter resources */
1003 if (dfcode != NULL) {
1004 dfilter_free(dfcode);
1007 epan_dissect_cleanup(&edt);
1009 /* Don't freeze/thaw the list when doing live capture */
1010 /*packet_list_thaw();*/
1012 if (cf->state == FILE_READ_ABORTED) {
1013 /* Well, the user decided to abort the read. We're only called
1014 when the child capture process closes the pipe to us (meaning
1015 it's probably exited), so we can just close the capture
1016 file; we return CF_READ_ABORTED so our caller can do whatever
1017 is appropriate when that happens. */
1019 return CF_READ_ABORTED;
1022 if (auto_scroll_live && cf->count != 0)
1023 packet_list_moveto_end();
1025 /* We're done reading sequentially through the file. */
1026 cf->state = FILE_READ_DONE;
1028 /* We're done reading sequentially through the file; close the
1029 sequential I/O side, to free up memory it requires. */
1030 wtap_sequential_close(cf->wth);
1032 /* Allow the protocol dissectors to free up memory that they
1033 * don't need after the sequential run-through of the packets. */
1034 postseq_cleanup_all_protocols();
1036 /* Update the file encapsulation; it might have changed based on the
1037 packets we've read. */
1038 cf->lnk_t = wtap_file_encap(cf->wth);
1040 /* Update the details in the file-set dialog, as the capture file
1041 * has likely grown since we first stat-ed it */
1042 fileset_update_file(cf->filename);
1045 /* We got an error reading the capture file.
1046 XXX - pop up a dialog box? */
1048 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
1049 wtap_strerror(*err), err_info, cf->filename);
1051 return CF_READ_ERROR;
1056 #endif /* HAVE_LIBPCAP */
1059 cf_get_display_name(capture_file *cf)
1063 /* Return a name to use in displays */
1064 if (!cf->is_tempfile) {
1065 /* Get the last component of the file name, and use that. */
1067 displayname = g_filename_display_basename(cf->filename);
1069 displayname=g_strdup("(No file)");
1072 /* The file we read is a temporary file from a live capture or
1073 a merge operation; we don't mention its name, but, if it's
1074 from a capture, give the source of the capture. */
1076 displayname = g_strdup(cf->source);
1078 displayname = g_strdup("(Untitled)");
1084 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1090 cf->source = g_strdup(source);
1092 cf->source = g_strdup("");
1096 const gchar *cf_get_tempfile_source(capture_file *cf) {
1104 /* XXX - use a macro instead? */
1106 cf_get_packet_count(capture_file *cf)
1111 /* XXX - use a macro instead? */
1113 cf_set_packet_count(capture_file *cf, int packet_count)
1115 cf->count = packet_count;
1118 /* XXX - use a macro instead? */
1120 cf_is_tempfile(capture_file *cf)
1122 return cf->is_tempfile;
1125 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1127 cf->is_tempfile = is_tempfile;
1131 /* XXX - use a macro instead? */
1132 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1134 cf->drops_known = drops_known;
1137 /* XXX - use a macro instead? */
1138 void cf_set_drops(capture_file *cf, guint32 drops)
1143 /* XXX - use a macro instead? */
1144 gboolean cf_get_drops_known(capture_file *cf)
1146 return cf->drops_known;
1149 /* XXX - use a macro instead? */
1150 guint32 cf_get_drops(capture_file *cf)
1155 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1157 cf->rfcode = rfcode;
1161 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1162 epan_dissect_t *edt, dfilter_t *dfcode, column_info *cinfo,
1163 struct wtap_pkthdr *phdr, const guint8 *buf, gboolean add_to_packet_list)
1167 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1168 &cf->ref, cf->prev_dis);
1169 cf->prev_cap = fdata;
1171 if (dfcode != NULL) {
1172 epan_dissect_prime_dfilter(edt, dfcode);
1175 /* Dissect the frame. */
1176 epan_dissect_run_with_taps(edt, phdr, frame_tvbuff_new(fdata, buf), fdata, cinfo);
1178 /* If we don't have a display filter, set "passed_dfilter" to 1. */
1179 if (dfcode != NULL) {
1180 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, edt) ? 1 : 0;
1182 if (fdata->flags.passed_dfilter) {
1183 /* This frame passed the display filter but it may depend on other
1184 * (potentially not displayed) frames. Find those frames and mark them
1187 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1190 fdata->flags.passed_dfilter = 1;
1192 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1193 cf->displayed_count++;
1195 if (add_to_packet_list) {
1196 /* We fill the needed columns from new_packet_list */
1197 row = packet_list_append(cinfo, fdata, &edt->pi);
1200 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1202 frame_data_set_after_dissect(fdata, &cf->cum_bytes);
1203 cf->prev_dis = fdata;
1205 /* If we haven't yet seen the first frame, this is it.
1207 XXX - we must do this before we add the row to the display,
1208 as, if the display's GtkCList's selection mode is
1209 GTK_SELECTION_BROWSE, when the first entry is added to it,
1210 "cf_select_packet()" will be called, and it will fetch the row
1211 data for the 0th row, and will get a null pointer rather than
1212 "fdata", as "gtk_clist_append()" won't yet have returned and
1213 thus "gtk_clist_set_row_data()" won't yet have been called.
1215 We thus need to leave behind bread crumbs so that
1216 "cf_select_packet()" can find this frame. See the comment
1217 in "cf_select_packet()". */
1218 if (cf->first_displayed == 0)
1219 cf->first_displayed = fdata->num;
1221 /* This is the last frame we've seen so far. */
1222 cf->last_displayed = fdata->num;
1225 epan_dissect_reset(edt);
1229 /* read in a new packet */
1230 /* returns the row of the new packet in the packet list or -1 if not displayed */
1232 read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
1233 column_info *cinfo, gint64 offset)
1235 struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1236 const guint8 *buf = wtap_buf_ptr(cf->wth);
1243 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
1244 it's not already there.
1245 XXX - yes, this is O(N), so if every packet had a different
1246 link-layer encapsulation type, it'd be O(N^2) to read the file, but
1247 there are probably going to be a small number of encapsulation types
1249 cf_add_encapsulation_type(cf, phdr->pkt_encap);
1251 /* The frame number of this packet is one more than the count of
1252 frames in the file so far. */
1253 framenum = cf->count + 1;
1255 frame_data_init(&fdlocal, framenum, phdr, offset, cf->cum_bytes);
1259 epan_dissect_t rf_edt;
1261 epan_dissect_init(&rf_edt, cf->epan, TRUE, FALSE);
1262 epan_dissect_prime_dfilter(&rf_edt, cf->rfcode);
1263 epan_dissect_run(&rf_edt, phdr, frame_tvbuff_new(&fdlocal, buf), &fdlocal, NULL);
1264 passed = dfilter_apply_edt(cf->rfcode, &rf_edt);
1265 epan_dissect_cleanup(&rf_edt);
1269 /* This does a shallow copy of fdlocal, which is good enough. */
1270 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1273 if (phdr->opt_comment != NULL)
1274 cf->packet_comment_count++;
1275 cf->f_datalen = offset + fdlocal.cap_len;
1277 if (!cf->redissecting) {
1278 row = add_packet_to_packet_list(fdata, cf, edt, dfcode,
1279 cinfo, phdr, buf, TRUE);
1287 cf_merge_files(char **out_filenamep, int in_file_count,
1288 char *const *in_filenames, int file_type, gboolean do_append)
1290 merge_in_file_t *in_files, *in_file;
1295 int open_err, read_err, write_err, close_err;
1299 gboolean got_read_error = FALSE, got_write_error = FALSE;
1301 progdlg_t *progbar = NULL;
1303 gint64 f_len, file_pos;
1305 GTimeVal start_time;
1306 gchar status_str[100];
1307 gint64 progbar_nextstep;
1308 gint64 progbar_quantum;
1309 gchar *display_basename;
1310 int selected_frame_type;
1311 gboolean fake_interface_ids = FALSE;
1313 /* open the input files */
1314 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1315 &open_err, &err_info, &err_fileno)) {
1317 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1322 if (*out_filenamep != NULL) {
1323 out_filename = *out_filenamep;
1324 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1328 out_fd = create_tempfile(&tmpname, "wireshark");
1331 out_filename = g_strdup(tmpname);
1332 *out_filenamep = out_filename;
1336 merge_close_in_files(in_file_count, in_files);
1338 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1342 selected_frame_type = merge_select_frame_type(in_file_count, in_files);
1344 /* If we are trying to merge a number of libpcap files with different encapsulation types
1345 * change the output file type to pcapng and create SHB and IDB:s for the new file use the
1346 * interface index stored in in_files per file to change the phdr before writing the datablock.
1347 * XXX should it be an option to convert to pcapng?
1349 * We need something similar when merging pcapng files possibly with an option to say
1350 * the same interface(s) used in all in files. SHBs comments should be merged together.
1352 if ((selected_frame_type == WTAP_ENCAP_PER_PACKET)&&(file_type == WTAP_FILE_PCAP)) {
1353 /* Write output in pcapng format */
1354 wtapng_section_t *shb_hdr;
1355 wtapng_iface_descriptions_t *idb_inf, *idb_inf_merge_file;
1356 wtapng_if_descr_t int_data, *file_int_data;
1357 GString *comment_gstr;
1359 fake_interface_ids = TRUE;
1360 /* Create SHB info */
1361 shb_hdr = wtap_file_get_shb_info(in_files[0].wth);
1362 comment_gstr = g_string_new("");
1363 g_string_append_printf(comment_gstr, "%s \n",shb_hdr->opt_comment);
1364 g_string_append_printf(comment_gstr, "File created by merging: \n");
1365 file_type = WTAP_FILE_PCAPNG;
1367 for (i = 0; i < in_file_count; i++) {
1368 g_string_append_printf(comment_gstr, "File%d: %s \n",i+1,in_files[i].filename);
1370 shb_hdr->section_length = -1;
1372 shb_hdr->opt_comment = g_string_free(comment_gstr, FALSE); /* NULL if not available */
1373 shb_hdr->shb_hardware = NULL; /* NULL if not available, UTF-8 string containing the */
1374 /* description of the hardware used to create this section. */
1375 shb_hdr->shb_os = NULL; /* NULL if not available, UTF-8 string containing the name */
1376 /* of the operating system used to create this section. */
1377 shb_hdr->shb_user_appl = "Wireshark"; /* NULL if not available, UTF-8 string containing the name */
1378 /* of the application used to create this section. */
1380 /* create fake IDB info */
1381 idb_inf = g_new(wtapng_iface_descriptions_t,1);
1382 idb_inf->number_of_interfaces = in_file_count; /* TODO make this the number of DIFFERENT encapsulation types
1383 * check that snaplength is the same too?
1385 idb_inf->interface_data = g_array_new(FALSE, FALSE, sizeof(wtapng_if_descr_t));
1387 for (i = 0; i < in_file_count; i++) {
1388 idb_inf_merge_file = wtap_file_get_idb_info(in_files[i].wth);
1389 /* read the interface data from the in file to our combined interfca data */
1390 file_int_data = &g_array_index (idb_inf_merge_file->interface_data, wtapng_if_descr_t, 0);
1391 int_data.wtap_encap = file_int_data->wtap_encap;
1392 int_data.time_units_per_second = file_int_data->time_units_per_second;
1393 int_data.link_type = file_int_data->link_type;
1394 int_data.snap_len = file_int_data->snap_len;
1395 int_data.if_name = g_strdup(file_int_data->if_name);
1396 int_data.opt_comment = NULL;
1397 int_data.if_description = NULL;
1398 int_data.if_speed = 0;
1399 int_data.if_tsresol = 6;
1400 int_data.if_filter_str = NULL;
1401 int_data.bpf_filter_len = 0;
1402 int_data.if_filter_bpf_bytes = NULL;
1403 int_data.if_os = NULL;
1404 int_data.if_fcslen = -1;
1405 int_data.num_stat_entries = 0; /* Number of ISB:s */
1406 int_data.interface_statistics = NULL;
1408 g_array_append_val(idb_inf->interface_data, int_data);
1409 g_free(idb_inf_merge_file);
1411 /* Set fake interface Id in per file data */
1412 in_files[i].interface_id = i;
1415 pdh = wtap_dump_fdopen_ng(out_fd, file_type,
1416 selected_frame_type,
1417 merge_max_snapshot_length(in_file_count, in_files),
1418 FALSE /* compressed */, shb_hdr, idb_inf /* wtapng_iface_descriptions_t *idb_inf */, &open_err);
1422 merge_close_in_files(in_file_count, in_files);
1424 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1431 pdh = wtap_dump_fdopen(out_fd, file_type,
1432 selected_frame_type,
1433 merge_max_snapshot_length(in_file_count, in_files),
1434 FALSE /* compressed */, &open_err);
1437 merge_close_in_files(in_file_count, in_files);
1439 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1445 /* Get the sum of the sizes of all the files. */
1447 for (i = 0; i < in_file_count; i++)
1448 f_len += in_files[i].size;
1450 /* Update the progress bar when it gets to this value. */
1451 progbar_nextstep = 0;
1452 /* When we reach the value that triggers a progress bar update,
1453 bump that value by this amount. */
1454 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1455 /* Progress so far. */
1459 g_get_current_time(&start_time);
1461 /* do the merge (or append) */
1464 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1467 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1469 if (in_file == NULL) {
1474 if (read_err != 0) {
1475 /* I/O error reading from in_file */
1476 got_read_error = TRUE;
1480 /* Get the sum of the data offsets in all of the files. */
1482 for (i = 0; i < in_file_count; i++)
1483 data_offset += in_files[i].data_offset;
1485 /* Create the progress bar if necessary.
1486 We check on every iteration of the loop, so that it takes no
1487 longer than the standard time to create it (otherwise, for a
1488 large file, we might take considerably longer than that standard
1489 time in order to get to the next progress bar step). */
1490 if (progbar == NULL) {
1491 progbar = delayed_create_progress_dlg(NULL, "Merging", "files",
1492 FALSE, &stop_flag, &start_time, progbar_val);
1495 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1496 when we update it, we have to run the GTK+ main loop to get it
1497 to repaint what's pending, and doing so may involve an "ioctl()"
1498 to see if there's any pending input from an X server, and doing
1499 that for every packet can be costly, especially on a big file. */
1500 if (data_offset >= progbar_nextstep) {
1501 /* Get the sum of the seek positions in all of the files. */
1503 for (i = 0; i < in_file_count; i++)
1504 file_pos += wtap_read_so_far(in_files[i].wth);
1505 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1506 if (progbar_val > 1.0f) {
1507 /* Some file probably grew while we were reading it.
1508 That "shouldn't happen", so we'll just clip the progress
1512 if (progbar != NULL) {
1513 g_snprintf(status_str, sizeof(status_str),
1514 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1515 file_pos / 1024, f_len / 1024);
1516 update_progress_dlg(progbar, progbar_val, status_str);
1518 progbar_nextstep += progbar_quantum;
1522 /* Well, the user decided to abort the merge. */
1526 /* If we have WTAP_ENCAP_PER_PACKETend the infiles are of type WTAP_FILE_PCAP
1527 * we need to set the interface id in the paket header = the interface index we used
1528 * in the IDBs interface description for this file(encapsulation type).
1530 if (fake_interface_ids) {
1531 struct wtap_pkthdr *phdr;
1533 phdr = wtap_phdr(in_file->wth);
1534 phdr->interface_id = in_file->interface_id;
1535 phdr->presence_flags = phdr->presence_flags | WTAP_HAS_INTERFACE_ID;
1537 if (!wtap_dump(pdh, wtap_phdr(in_file->wth),
1538 wtap_buf_ptr(in_file->wth), &write_err)) {
1539 got_write_error = TRUE;
1544 /* We're done merging the files; destroy the progress bar if it was created. */
1545 if (progbar != NULL)
1546 destroy_progress_dlg(progbar);
1548 merge_close_in_files(in_file_count, in_files);
1549 if (!got_read_error && !got_write_error) {
1550 if (!wtap_dump_close(pdh, &write_err))
1551 got_write_error = TRUE;
1553 wtap_dump_close(pdh, &close_err);
1555 if (got_read_error) {
1557 * Find the file on which we got the error, and report the error.
1559 for (i = 0; i < in_file_count; i++) {
1560 if (in_files[i].state == GOT_ERROR) {
1561 /* Put up a message box noting that a read failed somewhere along
1563 display_basename = g_filename_display_basename(in_files[i].filename);
1566 case WTAP_ERR_UNSUPPORTED_ENCAP:
1567 simple_error_message_box(
1568 "The capture file %s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1569 display_basename, err_info);
1573 case WTAP_ERR_CANT_READ:
1574 simple_error_message_box(
1575 "An attempt to read from the capture file %s failed for"
1576 " some unknown reason.", display_basename);
1579 case WTAP_ERR_SHORT_READ:
1580 simple_error_message_box(
1581 "The capture file %s appears to have been cut short"
1582 " in the middle of a packet.", display_basename);
1585 case WTAP_ERR_BAD_FILE:
1586 simple_error_message_box(
1587 "The capture file %s appears to be damaged or corrupt.\n(%s)",
1588 display_basename, err_info);
1592 case WTAP_ERR_DECOMPRESS:
1593 simple_error_message_box(
1594 "The compressed capture file %s appears to be damaged or corrupt.\n"
1595 "(%s)", display_basename, err_info);
1600 simple_error_message_box(
1601 "An error occurred while reading the"
1602 " capture file %s: %s.",
1603 display_basename, wtap_strerror(read_err));
1606 g_free(display_basename);
1611 if (got_write_error) {
1612 /* Put up an alert box for the write error. */
1613 if (write_err < 0) {
1614 /* Wiretap error. */
1615 switch (write_err) {
1617 case WTAP_ERR_UNSUPPORTED_ENCAP:
1619 * This is a problem with the particular frame we're writing;
1620 * note that, and give the frame number.
1622 display_basename = g_filename_display_basename(in_file->filename);
1623 simple_error_message_box(
1624 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1625 in_file->packet_num, display_basename,
1626 wtap_file_type_string(file_type));
1627 g_free(display_basename);
1631 display_basename = g_filename_display_basename(out_filename);
1632 simple_error_message_box(
1633 "An error occurred while writing to the file \"%s\": %s.",
1634 out_filename, wtap_strerror(write_err));
1635 g_free(display_basename);
1640 write_failure_alert_box(out_filename, write_err);
1644 if (got_read_error || got_write_error || stop_flag) {
1645 /* Callers aren't expected to treat an error or an explicit abort
1646 differently - we put up error dialogs ourselves, so they don't
1654 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1656 const char *filter_new = dftext ? dftext : "";
1657 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1659 GTimeVal start_time;
1661 /* if new filter equals old one, do nothing unless told to do so */
1662 if (!force && strcmp(filter_new, filter_old) == 0) {
1668 if (dftext == NULL) {
1669 /* The new filter is an empty filter (i.e., display all packets).
1670 * so leave dfcode==NULL
1674 * We have a filter; make a copy of it (as we'll be saving it),
1675 * and try to compile it.
1677 dftext = g_strdup(dftext);
1678 if (!dfilter_compile(dftext, &dfcode)) {
1679 /* The attempt failed; report an error. */
1680 simple_message_box(ESD_TYPE_ERROR, NULL,
1681 "See the help for a description of the display filter syntax.",
1682 "\"%s\" isn't a valid display filter: %s",
1683 dftext, dfilter_error_msg);
1689 if (dfcode == NULL) {
1690 /* Yes - free the filter text, and set it to null. */
1696 /* We have a valid filter. Replace the current filter. */
1697 g_free(cf->dfilter);
1698 cf->dfilter = dftext;
1699 g_get_current_time(&start_time);
1702 /* Now rescan the packet list, applying the new filter, but not
1703 throwing away information constructed on a previous pass. */
1704 if (dftext == NULL) {
1705 rescan_packets(cf, "Resetting", "Filter", FALSE);
1707 rescan_packets(cf, "Filtering", dftext, FALSE);
1710 /* Cleanup and release all dfilter resources */
1711 dfilter_free(dfcode);
1717 cf_reftime_packets(capture_file *cf)
1719 ref_time_packets(cf);
1723 cf_redissect_packets(capture_file *cf)
1725 if (cf->state != FILE_CLOSED) {
1726 rescan_packets(cf, "Reprocessing", "all packets", TRUE);
1731 cf_read_frame_r(capture_file *cf, const frame_data *fdata,
1732 struct wtap_pkthdr *phdr, Buffer *buf)
1736 gchar *display_basename;
1738 #ifdef WANT_PACKET_EDITOR
1739 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1740 if (G_UNLIKELY(fdata->file_off == -1)) {
1741 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1744 simple_error_message_box("fdata->file_off == -1, but can't find modified frame!");
1748 *phdr = frame->phdr;
1749 buffer_assure_space(buf, frame->phdr.caplen);
1750 memcpy(buffer_start_ptr(buf), frame->pd, frame->phdr.caplen);
1755 if (!wtap_seek_read(cf->wth, fdata->file_off, phdr, buf,
1756 fdata->cap_len, &err, &err_info)) {
1757 display_basename = g_filename_display_basename(cf->filename);
1760 case WTAP_ERR_UNSUPPORTED_ENCAP:
1761 simple_error_message_box("The file \"%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1762 display_basename, err_info);
1766 case WTAP_ERR_BAD_FILE:
1767 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1768 display_basename, wtap_strerror(err), err_info);
1773 simple_error_message_box(
1774 "An error occurred while reading from the file \"%s\": %s.",
1775 display_basename, wtap_strerror(err));
1778 g_free(display_basename);
1785 cf_read_frame(capture_file *cf, frame_data *fdata)
1787 return cf_read_frame_r(cf, fdata, &cf->phdr, &cf->buf);
1790 /* Rescan the list of packets, reconstructing the CList.
1792 "action" describes why we're doing this; it's used in the progress
1795 "action_item" describes what we're doing; it's used in the progress
1798 "redissect" is TRUE if we need to make the dissectors reconstruct
1799 any state information they have (because a preference that affects
1800 some dissector has changed, meaning some dissector might construct
1801 its state differently from the way it was constructed the last time). */
1803 rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect)
1805 /* Rescan packets new packet list */
1808 progdlg_t *progbar = NULL;
1811 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1812 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1813 gboolean selected_frame_seen;
1815 GTimeVal start_time;
1816 gchar status_str[100];
1817 int progbar_nextstep;
1818 int progbar_quantum;
1822 gboolean create_proto_tree;
1824 gboolean add_to_packet_list = FALSE;
1826 guint32 frames_count;
1828 /* Compile the current display filter.
1829 * We assume this will not fail since cf->dfilter is only set in
1830 * cf_filter IFF the filter was valid.
1832 compiled = dfilter_compile(cf->dfilter, &dfcode);
1833 g_assert(!cf->dfilter || (compiled && dfcode));
1835 /* Get the union of the flags for all tap listeners. */
1836 tap_flags = union_of_tap_listener_flags();
1837 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1839 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
1841 reset_tap_listeners();
1842 /* Which frame, if any, is the currently selected frame?
1843 XXX - should the selected frame or the focus frame be the "current"
1844 frame, that frame being the one from which "Find Frame" searches
1846 selected_frame = cf->current_frame;
1848 /* Mark frame num as not found */
1849 selected_frame_num = -1;
1851 /* Freeze the packet list while we redo it, so we don't get any
1852 screen updates while it happens. */
1853 packet_list_freeze();
1856 /* We need to re-initialize all the state information that protocols
1857 keep, because some preference that controls a dissector has changed,
1858 which might cause the state information to be constructed differently
1859 by that dissector. */
1861 /* We might receive new packets while redissecting, and we don't
1862 want to dissect those before their time. */
1863 cf->redissecting = TRUE;
1865 /* 'reset' dissection session */
1866 epan_free(cf->epan);
1867 cf->epan = ws_epan_new(cf);
1869 /* We need to redissect the packets so we have to discard our old
1870 * packet list store. */
1871 packet_list_clear();
1872 add_to_packet_list = TRUE;
1875 /* We don't yet know which will be the first and last frames displayed. */
1876 cf->first_displayed = 0;
1877 cf->last_displayed = 0;
1879 /* We currently don't display any packets */
1880 cf->displayed_count = 0;
1882 /* Iterate through the list of frames. Call a routine for each frame
1883 to check whether it should be displayed and, if so, add it to
1884 the display list. */
1886 cf->prev_dis = NULL;
1887 cf->prev_cap = NULL;
1890 /* Update the progress bar when it gets to this value. */
1891 progbar_nextstep = 0;
1892 /* When we reach the value that triggers a progress bar update,
1893 bump that value by this amount. */
1894 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1895 /* Count of packets at which we've looked. */
1897 /* Progress so far. */
1901 g_get_current_time(&start_time);
1903 /* no previous row yet */
1904 prev_frame_num = -1;
1907 preceding_frame_num = -1;
1908 preceding_frame = NULL;
1909 following_frame_num = -1;
1910 following_frame = NULL;
1912 selected_frame_seen = FALSE;
1914 frames_count = cf->count;
1916 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
1918 for (framenum = 1; framenum <= frames_count; framenum++) {
1919 fdata = frame_data_sequence_find(cf->frames, framenum);
1921 /* Create the progress bar if necessary.
1922 We check on every iteration of the loop, so that it takes no
1923 longer than the standard time to create it (otherwise, for a
1924 large file, we might take considerably longer than that standard
1925 time in order to get to the next progress bar step). */
1926 if (progbar == NULL)
1927 progbar = delayed_create_progress_dlg(cf->window, action, action_item, TRUE,
1928 &stop_flag, &start_time,
1931 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1932 when we update it, we have to run the GTK+ main loop to get it
1933 to repaint what's pending, and doing so may involve an "ioctl()"
1934 to see if there's any pending input from an X server, and doing
1935 that for every packet can be costly, especially on a big file. */
1936 if (count >= progbar_nextstep) {
1937 /* let's not divide by zero. I should never be started
1938 * with count == 0, so let's assert that
1940 g_assert(cf->count > 0);
1941 progbar_val = (gfloat) count / frames_count;
1943 if (progbar != NULL) {
1944 g_snprintf(status_str, sizeof(status_str),
1945 "%4u of %u frames", count, frames_count);
1946 update_progress_dlg(progbar, progbar_val, status_str);
1949 progbar_nextstep += progbar_quantum;
1953 /* Well, the user decided to abort the filtering. Just stop.
1955 XXX - go back to the previous filter? Users probably just
1956 want not to wait for a filtering operation to finish;
1957 unless we cancel by having no filter, reverting to the
1958 previous filter will probably be even more expensive than
1959 continuing the filtering, as it involves going back to the
1960 beginning and filtering, and even with no filter we currently
1961 have to re-generate the entire clist, which is also expensive.
1963 I'm not sure what Network Monitor does, but it doesn't appear
1964 to give you an unfiltered display if you cancel. */
1971 /* Since all state for the frame was destroyed, mark the frame
1972 * as not visited, free the GSList referring to the state
1973 * data (the per-frame data itself was freed by
1974 * "init_dissection()"), and null out the GSList pointer. */
1975 frame_data_reset(fdata);
1976 frames_count = cf->count;
1979 /* Frame dependencies from the previous dissection/filtering are no longer valid. */
1980 fdata->flags.dependent_of_displayed = 0;
1982 if (!cf_read_frame(cf, fdata))
1983 break; /* error reading the frame */
1985 /* If the previous frame is displayed, and we haven't yet seen the
1986 selected frame, remember that frame - it's the closest one we've
1987 yet seen before the selected frame. */
1988 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1989 preceding_frame_num = prev_frame_num;
1990 preceding_frame = prev_frame;
1993 add_packet_to_packet_list(fdata, cf, &edt, dfcode,
1995 buffer_start_ptr(&cf->buf),
1996 add_to_packet_list);
1998 /* If this frame is displayed, and this is the first frame we've
1999 seen displayed after the selected frame, remember this frame -
2000 it's the closest one we've yet seen at or after the selected
2002 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2003 following_frame_num = fdata->num;
2004 following_frame = fdata;
2006 if (fdata == selected_frame) {
2007 selected_frame_seen = TRUE;
2008 if (fdata->flags.passed_dfilter)
2009 selected_frame_num = fdata->num;
2012 /* Remember this frame - it'll be the previous frame
2013 on the next pass through the loop. */
2014 prev_frame_num = fdata->num;
2018 epan_dissect_cleanup(&edt);
2020 /* We are done redissecting the packet list. */
2021 cf->redissecting = FALSE;
2024 frames_count = cf->count;
2025 /* Clear out what remains of the visited flags and per-frame data
2028 XXX - that may cause various forms of bogosity when dissecting
2029 these frames, as they won't have been seen by this sequential
2030 pass, but the only alternative I see is to keep scanning them
2031 even though the user requested that the scan stop, and that
2032 would leave the user stuck with an Wireshark grinding on
2033 until it finishes. Should we just stick them with that? */
2034 for (; framenum <= frames_count; framenum++) {
2035 fdata = frame_data_sequence_find(cf->frames, framenum);
2036 frame_data_reset(fdata);
2040 /* We're done filtering the packets; destroy the progress bar if it
2042 if (progbar != NULL)
2043 destroy_progress_dlg(progbar);
2045 /* Unfreeze the packet list. */
2046 if (!add_to_packet_list)
2047 packet_list_recreate_visible_rows();
2049 /* Compute the time it took to filter the file */
2050 compute_elapsed(cf, &start_time);
2054 if (selected_frame_num == -1) {
2055 /* The selected frame didn't pass the filter. */
2056 if (selected_frame == NULL) {
2057 /* That's because there *was* no selected frame. Make the first
2058 displayed frame the current frame. */
2059 selected_frame_num = 0;
2061 /* Find the nearest displayed frame to the selected frame (whether
2062 it's before or after that frame) and make that the current frame.
2063 If the next and previous displayed frames are equidistant from the
2064 selected frame, choose the next one. */
2065 g_assert(following_frame == NULL ||
2066 following_frame->num >= selected_frame->num);
2067 g_assert(preceding_frame == NULL ||
2068 preceding_frame->num <= selected_frame->num);
2069 if (following_frame == NULL) {
2070 /* No frame after the selected frame passed the filter, so we
2071 have to select the last displayed frame before the selected
2073 selected_frame_num = preceding_frame_num;
2074 selected_frame = preceding_frame;
2075 } else if (preceding_frame == NULL) {
2076 /* No frame before the selected frame passed the filter, so we
2077 have to select the first displayed frame after the selected
2079 selected_frame_num = following_frame_num;
2080 selected_frame = following_frame;
2082 /* Frames before and after the selected frame passed the filter, so
2083 we'll select the previous frame */
2084 selected_frame_num = preceding_frame_num;
2085 selected_frame = preceding_frame;
2090 if (selected_frame_num == -1) {
2091 /* There are no frames displayed at all. */
2092 cf_unselect_packet(cf);
2094 /* Either the frame that was selected passed the filter, or we've
2095 found the nearest displayed frame to that frame. Select it, make
2096 it the focus row, and make it visible. */
2097 /* Set to invalid to force update of packet list and packet details */
2098 cf->current_row = -1;
2099 if (selected_frame_num == 0) {
2100 packet_list_select_first_row();
2102 if (!packet_list_select_row_from_data(selected_frame)) {
2103 /* We didn't find a row corresponding to this frame.
2104 This means that the frame isn't being displayed currently,
2105 so we can't select it. */
2106 simple_message_box(ESD_TYPE_INFO, NULL,
2107 "The capture file is probably not fully dissected.",
2108 "End of capture exceeded!");
2113 /* Cleanup and release all dfilter resources */
2114 dfilter_free(dfcode);
2119 * Scan trough all frame data and recalculate the ref time
2120 * without rereading the file.
2121 * XXX - do we need a progres bar or is this fast enough?
2124 ref_time_packets(capture_file *cf)
2131 cf->prev_dis = NULL;
2134 for (framenum = 1; framenum <= cf->count; framenum++) {
2135 fdata = frame_data_sequence_find(cf->frames, framenum);
2137 /* just add some value here until we know if it is being displayed or not */
2138 fdata->cum_bytes = cf->cum_bytes + fdata->pkt_len;
2144 /* If we don't have the time stamp of the first packet in the
2145 capture, it's because this is the first packet. Save the time
2146 stamp of this packet as the time stamp of the first packet. */
2147 if (cf->ref == NULL)
2149 /* if this frames is marked as a reference time frame, reset
2150 firstsec and firstusec to this frame */
2151 if (fdata->flags.ref_time)
2154 /* If we don't have the time stamp of the previous displayed packet,
2155 it's because this is the first displayed packet. Save the time
2156 stamp of this packet as the time stamp of the previous displayed
2158 if (cf->prev_dis == NULL) {
2159 cf->prev_dis = fdata;
2162 /* Get the time elapsed between the first packet and this packet. */
2163 fdata->frame_ref_num = (fdata != cf->ref) ? cf->ref->num : 0;
2164 nstime_delta(&rel_ts, &fdata->abs_ts, &cf->ref->abs_ts);
2166 /* If it's greater than the current elapsed time, set the elapsed time
2167 to it (we check for "greater than" so as not to be confused by
2168 time moving backwards). */
2169 if ((gint32)cf->elapsed_time.secs < rel_ts.secs
2170 || ((gint32)cf->elapsed_time.secs == rel_ts.secs && (gint32)cf->elapsed_time.nsecs < rel_ts.nsecs)) {
2171 cf->elapsed_time = rel_ts;
2174 /* If this frame is displayed, get the time elapsed between the
2175 previous displayed packet and this packet. */
2176 if ( fdata->flags.passed_dfilter ) {
2177 fdata->prev_dis_num = cf->prev_dis->num;
2178 cf->prev_dis = fdata;
2184 if ( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ) {
2185 /* This frame either passed the display filter list or is marked as
2186 a time reference frame. All time reference frames are displayed
2187 even if they dont pass the display filter */
2188 if (fdata->flags.ref_time) {
2189 /* if this was a TIME REF frame we should reset the cum_bytes field */
2190 cf->cum_bytes = fdata->pkt_len;
2191 fdata->cum_bytes = cf->cum_bytes;
2193 /* increase cum_bytes with this packets length */
2194 cf->cum_bytes += fdata->pkt_len;
2207 process_specified_packets(capture_file *cf, packet_range_t *range,
2208 const char *string1, const char *string2, gboolean terminate_is_stop,
2209 gboolean (*callback)(capture_file *, frame_data *,
2210 struct wtap_pkthdr *, const guint8 *, void *),
2211 void *callback_args)
2216 psp_return_t ret = PSP_FINISHED;
2218 progdlg_t *progbar = NULL;
2221 gboolean progbar_stop_flag;
2222 GTimeVal progbar_start_time;
2223 gchar progbar_status_str[100];
2224 int progbar_nextstep;
2225 int progbar_quantum;
2226 range_process_e process_this;
2227 struct wtap_pkthdr phdr;
2229 memset(&phdr, 0, sizeof(struct wtap_pkthdr));
2230 buffer_init(&buf, 1500);
2232 /* Update the progress bar when it gets to this value. */
2233 progbar_nextstep = 0;
2234 /* When we reach the value that triggers a progress bar update,
2235 bump that value by this amount. */
2236 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2237 /* Count of packets at which we've looked. */
2239 /* Progress so far. */
2242 progbar_stop_flag = FALSE;
2243 g_get_current_time(&progbar_start_time);
2246 packet_range_process_init(range);
2248 /* Iterate through all the packets, printing the packets that
2249 were selected by the current display filter. */
2250 for (framenum = 1; framenum <= cf->count; framenum++) {
2251 fdata = frame_data_sequence_find(cf->frames, framenum);
2253 /* Create the progress bar if necessary.
2254 We check on every iteration of the loop, so that it takes no
2255 longer than the standard time to create it (otherwise, for a
2256 large file, we might take considerably longer than that standard
2257 time in order to get to the next progress bar step). */
2258 if (progbar == NULL)
2259 progbar = delayed_create_progress_dlg(cf->window, string1, string2,
2262 &progbar_start_time,
2265 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2266 when we update it, we have to run the GTK+ main loop to get it
2267 to repaint what's pending, and doing so may involve an "ioctl()"
2268 to see if there's any pending input from an X server, and doing
2269 that for every packet can be costly, especially on a big file. */
2270 if (progbar_count >= progbar_nextstep) {
2271 /* let's not divide by zero. I should never be started
2272 * with count == 0, so let's assert that
2274 g_assert(cf->count > 0);
2275 progbar_val = (gfloat) progbar_count / cf->count;
2277 if (progbar != NULL) {
2278 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2279 "%4u of %u packets", progbar_count, cf->count);
2280 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2283 progbar_nextstep += progbar_quantum;
2286 if (progbar_stop_flag) {
2287 /* Well, the user decided to abort the operation. Just stop,
2288 and arrange to return PSP_STOPPED to our caller, so they know
2289 it was stopped explicitly. */
2296 if (range != NULL) {
2297 /* do we have to process this packet? */
2298 process_this = packet_range_process_packet(range, fdata);
2299 if (process_this == range_process_next) {
2300 /* this packet uninteresting, continue with next one */
2302 } else if (process_this == range_processing_finished) {
2303 /* all interesting packets processed, stop the loop */
2308 /* Get the packet */
2309 if (!cf_read_frame_r(cf, fdata, &phdr, &buf)) {
2310 /* Attempt to get the packet failed. */
2314 /* Process the packet */
2315 if (!callback(cf, fdata, &phdr, buffer_start_ptr(&buf), callback_args)) {
2316 /* Callback failed. We assume it reported the error appropriately. */
2322 /* We're done printing the packets; destroy the progress bar if
2324 if (progbar != NULL)
2325 destroy_progress_dlg(progbar);
2335 } retap_callback_args_t;
2338 retap_packet(capture_file *cf _U_, frame_data *fdata,
2339 struct wtap_pkthdr *phdr, const guint8 *pd,
2342 retap_callback_args_t *args = (retap_callback_args_t *)argsp;
2344 epan_dissect_run_with_taps(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, args->cinfo);
2345 epan_dissect_reset(&args->edt);
2351 cf_retap_packets(capture_file *cf)
2353 packet_range_t range;
2354 retap_callback_args_t callback_args;
2355 gboolean construct_protocol_tree;
2356 gboolean filtering_tap_listeners;
2360 /* Do we have any tap listeners with filters? */
2361 filtering_tap_listeners = have_filtering_tap_listeners();
2363 tap_flags = union_of_tap_listener_flags();
2365 /* If any tap listeners have filters, or require the protocol tree,
2366 construct the protocol tree. */
2367 construct_protocol_tree = filtering_tap_listeners ||
2368 (tap_flags & TL_REQUIRES_PROTO_TREE);
2370 /* If any tap listeners require the columns, construct them. */
2371 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2373 /* Reset the tap listeners. */
2374 reset_tap_listeners();
2376 epan_dissect_init(&callback_args.edt, cf->epan, construct_protocol_tree, FALSE);
2378 /* Iterate through the list of packets, dissecting all packets and
2379 re-running the taps. */
2380 packet_range_init(&range, cf);
2381 packet_range_process_init(&range);
2383 ret = process_specified_packets(cf, &range, "Recalculating statistics on",
2384 "all packets", TRUE, retap_packet,
2387 epan_dissect_cleanup(&callback_args.edt);
2391 /* Completed successfully. */
2395 /* Well, the user decided to abort the refiltering.
2396 Return CF_READ_ABORTED so our caller knows they did that. */
2397 return CF_READ_ABORTED;
2400 /* Error while retapping. */
2401 return CF_READ_ERROR;
2404 g_assert_not_reached();
2409 print_args_t *print_args;
2410 gboolean print_header_line;
2411 char *header_line_buf;
2412 int header_line_buf_len;
2413 gboolean print_formfeed;
2414 gboolean print_separator;
2418 int num_visible_cols;
2421 } print_callback_args_t;
2424 print_packet(capture_file *cf, frame_data *fdata,
2425 struct wtap_pkthdr *phdr, const guint8 *pd,
2428 print_callback_args_t *args = (print_callback_args_t *)argsp;
2434 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2435 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2437 /* Fill in the column information if we're printing the summary
2439 if (args->print_args->print_summary) {
2440 col_custom_prime_edt(&args->edt, &cf->cinfo);
2441 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2442 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2444 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2446 if (args->print_formfeed) {
2447 if (!new_page(args->print_args->stream))
2450 if (args->print_separator) {
2451 if (!print_line(args->print_args->stream, 0, ""))
2457 * We generate bookmarks, if the output format supports them.
2458 * The name is "__frameN__".
2460 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2462 if (args->print_args->print_summary) {
2463 if (!args->print_args->print_col_headings)
2464 args->print_header_line = FALSE;
2465 if (args->print_header_line) {
2466 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2468 args->print_header_line = FALSE; /* we might not need to print any more */
2470 cp = &args->line_buf[0];
2472 for (i = 0; i < args->num_visible_cols; i++) {
2473 /* Find the length of the string for this column. */
2474 column_len = (int) strlen(cf->cinfo.col_data[args->visible_cols[i]]);
2475 if (args->col_widths[i] > column_len)
2476 column_len = args->col_widths[i];
2478 /* Make sure there's room in the line buffer for the column; if not,
2479 double its length. */
2480 line_len += column_len + 1; /* "+1" for space */
2481 if (line_len > args->line_buf_len) {
2482 cp_off = (int) (cp - args->line_buf);
2483 args->line_buf_len = 2 * line_len;
2484 args->line_buf = (char *)g_realloc(args->line_buf, args->line_buf_len + 1);
2485 cp = args->line_buf + cp_off;
2488 /* Right-justify the packet number column. */
2489 if (cf->cinfo.col_fmt[args->visible_cols[i]] == COL_NUMBER)
2490 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2492 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2494 if (i != args->num_visible_cols - 1)
2500 * Generate a bookmark, using the summary line as the title.
2502 if (!print_bookmark(args->print_args->stream, bookmark_name,
2506 if (!print_line(args->print_args->stream, 0, args->line_buf))
2510 * Generate a bookmark, using "Frame N" as the title, as we're not
2511 * printing the summary line.
2513 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2514 if (!print_bookmark(args->print_args->stream, bookmark_name,
2517 } /* if (print_summary) */
2519 if (args->print_args->print_dissections != print_dissections_none) {
2520 if (args->print_args->print_summary) {
2521 /* Separate the summary line from the tree with a blank line. */
2522 if (!print_line(args->print_args->stream, 0, ""))
2526 /* Print the information in that tree. */
2527 if (!proto_tree_print(args->print_args, &args->edt, args->print_args->stream))
2530 /* Print a blank line if we print anything after this (aka more than one packet). */
2531 args->print_separator = TRUE;
2533 /* Print a header line if we print any more packet summaries */
2534 if (args->print_args->print_col_headings)
2535 args->print_header_line = TRUE;
2538 if (args->print_args->print_hex) {
2539 if (args->print_args->print_summary || (args->print_args->print_dissections != print_dissections_none)) {
2540 if (!print_line(args->print_args->stream, 0, ""))
2543 /* Print the full packet data as hex. */
2544 if (!print_hex_data(args->print_args->stream, &args->edt))
2547 /* Print a blank line if we print anything after this (aka more than one packet). */
2548 args->print_separator = TRUE;
2550 /* Print a header line if we print any more packet summaries */
2551 if (args->print_args->print_col_headings)
2552 args->print_header_line = TRUE;
2553 } /* if (args->print_args->print_dissections != print_dissections_none) */
2555 epan_dissect_reset(&args->edt);
2557 /* do we want to have a formfeed between each packet from now on? */
2558 if (args->print_args->print_formfeed) {
2559 args->print_formfeed = TRUE;
2565 epan_dissect_reset(&args->edt);
2570 cf_print_packets(capture_file *cf, print_args_t *print_args)
2572 print_callback_args_t callback_args;
2575 int i, cp_off, column_len, line_len;
2576 int num_visible_col = 0, last_visible_col = 0, visible_col_count;
2580 gboolean proto_tree_needed;
2582 callback_args.print_args = print_args;
2583 callback_args.print_header_line = print_args->print_col_headings;
2584 callback_args.header_line_buf = NULL;
2585 callback_args.header_line_buf_len = 256;
2586 callback_args.print_formfeed = FALSE;
2587 callback_args.print_separator = FALSE;
2588 callback_args.line_buf = NULL;
2589 callback_args.line_buf_len = 256;
2590 callback_args.col_widths = NULL;
2591 callback_args.num_visible_cols = 0;
2592 callback_args.visible_cols = NULL;
2594 if (!print_preamble(print_args->stream, cf->filename, wireshark_svnversion)) {
2595 destroy_print_stream(print_args->stream);
2596 return CF_PRINT_WRITE_ERROR;
2599 if (print_args->print_summary) {
2600 /* We're printing packet summaries. Allocate the header line buffer
2601 and get the column widths. */
2602 callback_args.header_line_buf = (char *)g_malloc(callback_args.header_line_buf_len + 1);
2604 /* Find the number of visible columns and the last visible column */
2605 for (i = 0; i < prefs.num_cols; i++) {
2607 clp = g_list_nth(prefs.col_list, i);
2608 if (clp == NULL) /* Sanity check, Invalid column requested */
2611 cfmt = (fmt_data *) clp->data;
2612 if (cfmt->visible) {
2614 last_visible_col = i;
2618 /* Find the widths for each of the columns - maximum of the
2619 width of the title and the width of the data - and construct
2620 a buffer with a line containing the column titles. */
2621 callback_args.num_visible_cols = num_visible_col;
2622 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2623 callback_args.visible_cols = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2624 cp = &callback_args.header_line_buf[0];
2626 visible_col_count = 0;
2627 for (i = 0; i < cf->cinfo.num_cols; i++) {
2629 clp = g_list_nth(prefs.col_list, i);
2630 if (clp == NULL) /* Sanity check, Invalid column requested */
2633 cfmt = (fmt_data *) clp->data;
2634 if (cfmt->visible == FALSE)
2637 /* Save the order of visible columns */
2638 callback_args.visible_cols[visible_col_count] = i;
2640 /* Don't pad the last column. */
2641 if (i == last_visible_col)
2642 callback_args.col_widths[visible_col_count] = 0;
2644 callback_args.col_widths[visible_col_count] = (gint) strlen(cf->cinfo.col_title[i]);
2645 data_width = get_column_char_width(get_column_format(i));
2646 if (data_width > callback_args.col_widths[visible_col_count])
2647 callback_args.col_widths[visible_col_count] = data_width;
2650 /* Find the length of the string for this column. */
2651 column_len = (int) strlen(cf->cinfo.col_title[i]);
2652 if (callback_args.col_widths[i] > column_len)
2653 column_len = callback_args.col_widths[visible_col_count];
2655 /* Make sure there's room in the line buffer for the column; if not,
2656 double its length. */
2657 line_len += column_len + 1; /* "+1" for space */
2658 if (line_len > callback_args.header_line_buf_len) {
2659 cp_off = (int) (cp - callback_args.header_line_buf);
2660 callback_args.header_line_buf_len = 2 * line_len;
2661 callback_args.header_line_buf = (char *)g_realloc(callback_args.header_line_buf,
2662 callback_args.header_line_buf_len + 1);
2663 cp = callback_args.header_line_buf + cp_off;
2666 /* Right-justify the packet number column. */
2667 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2668 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2670 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2672 if (i != cf->cinfo.num_cols - 1)
2675 visible_col_count++;
2679 /* Now start out the main line buffer with the same length as the
2680 header line buffer. */
2681 callback_args.line_buf_len = callback_args.header_line_buf_len;
2682 callback_args.line_buf = (char *)g_malloc(callback_args.line_buf_len + 1);
2683 } /* if (print_summary) */
2685 /* Create the protocol tree, and make it visible, if we're printing
2686 the dissection or the hex data.
2687 XXX - do we need it if we're just printing the hex data? */
2689 callback_args.print_args->print_dissections != print_dissections_none ||
2690 callback_args.print_args->print_hex ||
2691 have_custom_cols(&cf->cinfo);
2692 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2694 /* Iterate through the list of packets, printing the packets we were
2696 ret = process_specified_packets(cf, &print_args->range, "Printing",
2697 "selected packets", TRUE, print_packet,
2699 epan_dissect_cleanup(&callback_args.edt);
2700 g_free(callback_args.header_line_buf);
2701 g_free(callback_args.line_buf);
2702 g_free(callback_args.col_widths);
2703 g_free(callback_args.visible_cols);
2708 /* Completed successfully. */
2712 /* Well, the user decided to abort the printing.
2714 XXX - note that what got generated before they did that
2715 will get printed if we're piping to a print program; we'd
2716 have to write to a file and then hand that to the print
2717 program to make it actually not print anything. */
2721 /* Error while printing.
2723 XXX - note that what got generated before they did that
2724 will get printed if we're piping to a print program; we'd
2725 have to write to a file and then hand that to the print
2726 program to make it actually not print anything. */
2727 destroy_print_stream(print_args->stream);
2728 return CF_PRINT_WRITE_ERROR;
2731 if (!print_finale(print_args->stream)) {
2732 destroy_print_stream(print_args->stream);
2733 return CF_PRINT_WRITE_ERROR;
2736 if (!destroy_print_stream(print_args->stream))
2737 return CF_PRINT_WRITE_ERROR;
2745 } write_packet_callback_args_t;
2748 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2749 struct wtap_pkthdr *phdr, const guint8 *pd,
2752 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2754 /* Create the protocol tree, but don't fill in the column information. */
2755 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2757 /* Write out the information in that tree. */
2758 proto_tree_write_pdml(&args->edt, args->fh);
2760 epan_dissect_reset(&args->edt);
2762 return !ferror(args->fh);
2766 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2768 write_packet_callback_args_t callback_args;
2772 fh = ws_fopen(print_args->file, "w");
2774 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2776 write_pdml_preamble(fh, cf->filename);
2779 return CF_PRINT_WRITE_ERROR;
2782 callback_args.fh = fh;
2783 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2785 /* Iterate through the list of packets, printing the packets we were
2787 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2788 "selected packets", TRUE,
2789 write_pdml_packet, &callback_args);
2791 epan_dissect_cleanup(&callback_args.edt);
2796 /* Completed successfully. */
2800 /* Well, the user decided to abort the printing. */
2804 /* Error while printing. */
2806 return CF_PRINT_WRITE_ERROR;
2809 write_pdml_finale(fh);
2812 return CF_PRINT_WRITE_ERROR;
2815 /* XXX - check for an error */
2822 write_psml_packet(capture_file *cf, frame_data *fdata,
2823 struct wtap_pkthdr *phdr, const guint8 *pd,
2826 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2828 col_custom_prime_edt(&args->edt, &cf->cinfo);
2829 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2830 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2832 /* Write out the information in that tree. */
2833 proto_tree_write_psml(&args->edt, args->fh);
2835 epan_dissect_reset(&args->edt);
2837 return !ferror(args->fh);
2841 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2843 write_packet_callback_args_t callback_args;
2847 gboolean proto_tree_needed;
2849 fh = ws_fopen(print_args->file, "w");
2851 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2853 write_psml_preamble(fh);
2856 return CF_PRINT_WRITE_ERROR;
2859 callback_args.fh = fh;
2861 /* Fill in the column information, only create the protocol tree
2862 if having custom columns. */
2863 proto_tree_needed = have_custom_cols(&cf->cinfo);
2864 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2866 /* Iterate through the list of packets, printing the packets we were
2868 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2869 "selected packets", TRUE,
2870 write_psml_packet, &callback_args);
2872 epan_dissect_cleanup(&callback_args.edt);
2877 /* Completed successfully. */
2881 /* Well, the user decided to abort the printing. */
2885 /* Error while printing. */
2887 return CF_PRINT_WRITE_ERROR;
2890 write_psml_finale(fh);
2893 return CF_PRINT_WRITE_ERROR;
2896 /* XXX - check for an error */
2903 write_csv_packet(capture_file *cf, frame_data *fdata,
2904 struct wtap_pkthdr *phdr, const guint8 *pd,
2907 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2909 /* Fill in the column information */
2910 col_custom_prime_edt(&args->edt, &cf->cinfo);
2911 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2912 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2914 /* Write out the information in that tree. */
2915 proto_tree_write_csv(&args->edt, args->fh);
2917 epan_dissect_reset(&args->edt);
2919 return !ferror(args->fh);
2923 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2925 write_packet_callback_args_t callback_args;
2926 gboolean proto_tree_needed;
2930 fh = ws_fopen(print_args->file, "w");
2932 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2934 write_csv_preamble(fh);
2937 return CF_PRINT_WRITE_ERROR;
2940 callback_args.fh = fh;
2942 /* only create the protocol tree if having custom columns. */
2943 proto_tree_needed = have_custom_cols(&cf->cinfo);
2944 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2946 /* Iterate through the list of packets, printing the packets we were
2948 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2949 "selected packets", TRUE,
2950 write_csv_packet, fh);
2952 epan_dissect_cleanup(&callback_args.edt);
2957 /* Completed successfully. */
2961 /* Well, the user decided to abort the printing. */
2965 /* Error while printing. */
2967 return CF_PRINT_WRITE_ERROR;
2970 write_csv_finale(fh);
2973 return CF_PRINT_WRITE_ERROR;
2976 /* XXX - check for an error */
2983 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
2984 struct wtap_pkthdr *phdr,
2985 const guint8 *pd, void *argsp)
2987 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2989 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2990 proto_tree_write_carrays(fdata->num, args->fh, &args->edt);
2991 epan_dissect_reset(&args->edt);
2993 return !ferror(args->fh);
2997 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2999 write_packet_callback_args_t callback_args;
3003 fh = ws_fopen(print_args->file, "w");
3006 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3008 write_carrays_preamble(fh);
3012 return CF_PRINT_WRITE_ERROR;
3015 callback_args.fh = fh;
3016 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
3018 /* Iterate through the list of packets, printing the packets we were
3020 ret = process_specified_packets(cf, &print_args->range,
3022 "selected packets", TRUE,
3023 write_carrays_packet, &callback_args);
3025 epan_dissect_cleanup(&callback_args.edt);
3029 /* Completed successfully. */
3032 /* Well, the user decided to abort the printing. */
3035 /* Error while printing. */
3037 return CF_PRINT_WRITE_ERROR;
3040 write_carrays_finale(fh);
3044 return CF_PRINT_WRITE_ERROR;
3052 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
3053 search_direction dir)
3057 mdata.string = string;
3058 mdata.string_len = strlen(string);
3059 return find_packet(cf, match_protocol_tree, &mdata, dir);
3063 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
3065 mdata->frame_matched = FALSE;
3066 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
3067 mdata->string_len = strlen(mdata->string);
3069 /* Iterate through all the nodes looking for matching text */
3070 proto_tree_children_foreach(tree, match_subtree_text, mdata);
3071 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3075 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3077 match_data *mdata = (match_data *)criterion;
3080 /* Load the frame's data. */
3081 if (!cf_read_frame(cf, fdata)) {
3082 /* Attempt to get the packet failed. */
3086 /* Construct the protocol tree, including the displayed text */
3087 epan_dissect_init(&edt, cf->epan, TRUE, TRUE);
3088 /* We don't need the column information */
3089 epan_dissect_run(&edt, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3091 /* Iterate through all the nodes, seeing if they have text that matches. */
3093 mdata->frame_matched = FALSE;
3094 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3095 epan_dissect_cleanup(&edt);
3096 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3100 match_subtree_text(proto_node *node, gpointer data)
3102 match_data *mdata = (match_data *) data;
3103 const gchar *string = mdata->string;
3104 size_t string_len = mdata->string_len;
3105 capture_file *cf = mdata->cf;
3106 field_info *fi = PNODE_FINFO(node);
3107 gchar label_str[ITEM_LABEL_LENGTH];
3114 /* dissection with an invisible proto tree? */
3117 if (mdata->frame_matched) {
3118 /* We already had a match; don't bother doing any more work. */
3122 /* Don't match invisible entries. */
3123 if (PROTO_ITEM_IS_HIDDEN(node))
3126 /* was a free format label produced? */
3128 label_ptr = fi->rep->representation;
3130 /* no, make a generic label */
3131 label_ptr = label_str;
3132 proto_item_fill_label(fi, label_str);
3135 /* Does that label match? */
3136 label_len = strlen(label_ptr);
3137 for (i = 0; i < label_len; i++) {
3138 c_char = label_ptr[i];
3140 c_char = toupper(c_char);
3141 if (c_char == string[c_match]) {
3143 if (c_match == string_len) {
3144 /* No need to look further; we have a match */
3145 mdata->frame_matched = TRUE;
3153 /* Recurse into the subtree, if it exists */
3154 if (node->first_child != NULL)
3155 proto_tree_children_foreach(node, match_subtree_text, mdata);
3159 cf_find_packet_summary_line(capture_file *cf, const char *string,
3160 search_direction dir)
3164 mdata.string = string;
3165 mdata.string_len = strlen(string);
3166 return find_packet(cf, match_summary_line, &mdata, dir);
3170 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3172 match_data *mdata = (match_data *)criterion;
3173 const gchar *string = mdata->string;
3174 size_t string_len = mdata->string_len;
3176 const char *info_column;
3177 size_t info_column_len;
3178 match_result result = MR_NOTMATCHED;
3184 /* Load the frame's data. */
3185 if (!cf_read_frame(cf, fdata)) {
3186 /* Attempt to get the packet failed. */
3190 /* Don't bother constructing the protocol tree */
3191 epan_dissect_init(&edt, cf->epan, FALSE, FALSE);
3192 /* Get the column information */
3193 epan_dissect_run(&edt, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata,
3196 /* Find the Info column */
3197 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3198 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3199 /* Found it. See if we match. */
3200 info_column = edt.pi.cinfo->col_data[colx];
3201 info_column_len = strlen(info_column);
3202 for (i = 0; i < info_column_len; i++) {
3203 c_char = info_column[i];
3205 c_char = toupper(c_char);
3206 if (c_char == string[c_match]) {
3208 if (c_match == string_len) {
3209 result = MR_MATCHED;
3218 epan_dissect_cleanup(&edt);
3225 } cbs_t; /* "Counted byte string" */
3229 * The current match_* routines only support ASCII case insensitivity and don't
3230 * convert UTF-8 inputs to UTF-16 for matching.
3232 * We could modify them to use the GLib Unicode routines or the International
3233 * Components for Unicode library but it's not apparent that we could do so
3234 * without consuming a lot more CPU and memory or that searching would be
3235 * significantly better.
3239 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
3240 search_direction dir)
3245 info.data_len = string_size;
3247 /* String or hex search? */
3249 /* String search - what type of string? */
3250 switch (cf->scs_type) {
3252 case SCS_NARROW_AND_WIDE:
3253 return find_packet(cf, match_narrow_and_wide, &info, dir);
3256 return find_packet(cf, match_narrow, &info, dir);
3259 return find_packet(cf, match_wide, &info, dir);
3262 g_assert_not_reached();
3266 return find_packet(cf, match_binary, &info, dir);
3270 match_narrow_and_wide(capture_file *cf, frame_data *fdata, void *criterion)
3272 cbs_t *info = (cbs_t *)criterion;
3273 const guint8 *ascii_text = info->data;
3274 size_t textlen = info->data_len;
3275 match_result result;
3282 /* Load the frame's data. */
3283 if (!cf_read_frame(cf, fdata)) {
3284 /* Attempt to get the packet failed. */
3288 result = MR_NOTMATCHED;
3289 buf_len = fdata->cap_len;
3290 pd = buffer_start_ptr(&cf->buf);
3292 while (i < buf_len) {
3295 c_char = toupper(c_char);
3296 if (c_char != '\0') {
3297 if (c_char == ascii_text[c_match]) {
3299 if (c_match == textlen) {
3300 result = MR_MATCHED;
3301 cf->search_pos = i; /* Save the position of the last character
3302 for highlighting the field. */
3307 g_assert(i>=c_match);
3308 i -= (guint32)c_match;
3318 match_narrow(capture_file *cf, frame_data *fdata, void *criterion)
3321 cbs_t *info = (cbs_t *)criterion;
3322 const guint8 *ascii_text = info->data;
3323 size_t textlen = info->data_len;
3324 match_result result;
3330 /* Load the frame's data. */
3331 if (!cf_read_frame(cf, fdata)) {
3332 /* Attempt to get the packet failed. */
3336 result = MR_NOTMATCHED;
3337 buf_len = fdata->cap_len;
3338 pd = buffer_start_ptr(&cf->buf);
3340 while (i < buf_len) {
3343 c_char = toupper(c_char);
3344 if (c_char == ascii_text[c_match]) {
3346 if (c_match == textlen) {
3347 result = MR_MATCHED;
3348 cf->search_pos = i; /* Save the position of the last character
3349 for highlighting the field. */
3354 g_assert(i>=c_match);
3355 i -= (guint32)c_match;
3365 match_wide(capture_file *cf, frame_data *fdata, void *criterion)
3367 cbs_t *info = (cbs_t *)criterion;
3368 const guint8 *ascii_text = info->data;
3369 size_t textlen = info->data_len;
3370 match_result result;
3377 /* Load the frame's data. */
3378 if (!cf_read_frame(cf, fdata)) {
3379 /* Attempt to get the packet failed. */
3383 result = MR_NOTMATCHED;
3384 buf_len = fdata->cap_len;
3385 pd = buffer_start_ptr(&cf->buf);
3387 while (i < buf_len) {
3390 c_char = toupper(c_char);
3391 if (c_char == ascii_text[c_match]) {
3393 if (c_match == textlen) {
3394 result = MR_MATCHED;
3395 cf->search_pos = i; /* Save the position of the last character
3396 for highlighting the field. */
3402 g_assert(i>=(c_match*2));
3403 i -= (guint32)c_match*2;
3412 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3414 cbs_t *info = (cbs_t *)criterion;
3415 const guint8 *binary_data = info->data;
3416 size_t datalen = info->data_len;
3417 match_result result;
3423 /* Load the frame's data. */
3424 if (!cf_read_frame(cf, fdata)) {
3425 /* Attempt to get the packet failed. */
3429 result = MR_NOTMATCHED;
3430 buf_len = fdata->cap_len;
3431 pd = buffer_start_ptr(&cf->buf);
3433 while (i < buf_len) {
3434 if (pd[i] == binary_data[c_match]) {
3436 if (c_match == datalen) {
3437 result = MR_MATCHED;
3438 cf->search_pos = i; /* Save the position of the last character
3439 for highlighting the field. */
3444 g_assert(i>=c_match);
3445 i -= (guint32)c_match;
3454 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3455 search_direction dir)
3457 return find_packet(cf, match_dfilter, sfcode, dir);
3461 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3462 search_direction dir)
3467 if (!dfilter_compile(filter, &sfcode)) {
3469 * XXX - this shouldn't happen, as the filter string is machine
3474 if (sfcode == NULL) {
3476 * XXX - this shouldn't happen, as the filter string is machine
3481 result = find_packet(cf, match_dfilter, sfcode, dir);
3482 dfilter_free(sfcode);
3487 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3489 dfilter_t *sfcode = (dfilter_t *)criterion;
3491 match_result result;
3493 /* Load the frame's data. */
3494 if (!cf_read_frame(cf, fdata)) {
3495 /* Attempt to get the packet failed. */
3499 epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
3500 epan_dissect_prime_dfilter(&edt, sfcode);
3501 epan_dissect_run(&edt, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3502 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3503 epan_dissect_cleanup(&edt);
3508 cf_find_packet_marked(capture_file *cf, search_direction dir)
3510 return find_packet(cf, match_marked, NULL, dir);
3514 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3516 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3520 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3522 return find_packet(cf, match_time_reference, NULL, dir);
3526 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3528 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3532 find_packet(capture_file *cf,
3533 match_result (*match_function)(capture_file *, frame_data *, void *),
3534 void *criterion, search_direction dir)
3536 frame_data *start_fd;
3539 frame_data *new_fd = NULL;
3540 progdlg_t *progbar = NULL;
3545 GTimeVal start_time;
3546 gchar status_str[100];
3547 int progbar_nextstep;
3548 int progbar_quantum;
3550 match_result result;
3552 start_fd = cf->current_frame;
3553 if (start_fd != NULL) {
3554 /* Iterate through the list of packets, starting at the packet we've
3555 picked, calling a routine to run the filter on the packet, see if
3556 it matches, and stop if so. */
3558 framenum = start_fd->num;
3560 /* Update the progress bar when it gets to this value. */
3561 progbar_nextstep = 0;
3562 /* When we reach the value that triggers a progress bar update,
3563 bump that value by this amount. */
3564 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3565 /* Progress so far. */
3569 g_get_current_time(&start_time);
3571 title = cf->sfilter?cf->sfilter:"";
3573 /* Create the progress bar if necessary.
3574 We check on every iteration of the loop, so that it takes no
3575 longer than the standard time to create it (otherwise, for a
3576 large file, we might take considerably longer than that standard
3577 time in order to get to the next progress bar step). */
3578 if (progbar == NULL)
3579 progbar = delayed_create_progress_dlg(cf->window, "Searching", title,
3580 FALSE, &stop_flag, &start_time, progbar_val);
3582 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3583 when we update it, we have to run the GTK+ main loop to get it
3584 to repaint what's pending, and doing so may involve an "ioctl()"
3585 to see if there's any pending input from an X server, and doing
3586 that for every packet can be costly, especially on a big file. */
3587 if (count >= progbar_nextstep) {
3588 /* let's not divide by zero. I should never be started
3589 * with count == 0, so let's assert that
3591 g_assert(cf->count > 0);
3593 progbar_val = (gfloat) count / cf->count;
3595 if (progbar != NULL) {
3596 g_snprintf(status_str, sizeof(status_str),
3597 "%4u of %u packets", count, cf->count);
3598 update_progress_dlg(progbar, progbar_val, status_str);
3601 progbar_nextstep += progbar_quantum;
3605 /* Well, the user decided to abort the search. Go back to the
3606 frame where we started. */
3611 /* Go past the current frame. */
3612 if (dir == SD_BACKWARD) {
3613 /* Go on to the previous frame. */
3614 if (framenum == 1) {
3616 * XXX - other apps have a bit more of a detailed message
3617 * for this, and instead of offering "OK" and "Cancel",
3618 * they offer things such as "Continue" and "Cancel";
3619 * we need an API for popping up alert boxes with
3620 * {Verb} and "Cancel".
3623 if (prefs.gui_find_wrap)
3625 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3626 framenum = cf->count; /* wrap around */
3630 statusbar_push_temporary_msg("Search reached the beginning.");
3631 framenum = start_fd->num; /* stay on previous packet */
3636 /* Go on to the next frame. */
3637 if (framenum == cf->count) {
3638 if (prefs.gui_find_wrap)
3640 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3641 framenum = 1; /* wrap around */
3645 statusbar_push_temporary_msg("Search reached the end.");
3646 framenum = start_fd->num; /* stay on previous packet */
3651 fdata = frame_data_sequence_find(cf->frames, framenum);
3655 /* Is this packet in the display? */
3656 if (fdata->flags.passed_dfilter) {
3657 /* Yes. Does it match the search criterion? */
3658 result = (*match_function)(cf, fdata, criterion);
3659 if (result == MR_ERROR) {
3660 /* Error; our caller has reported the error. Go back to the frame
3661 where we started. */
3664 } else if (result == MR_MATCHED) {
3665 /* Yes. Go to the new frame. */
3671 if (fdata == start_fd) {
3672 /* We're back to the frame we were on originally, and that frame
3673 doesn't match the search filter. The search failed. */
3678 /* We're done scanning the packets; destroy the progress bar if it
3680 if (progbar != NULL)
3681 destroy_progress_dlg(progbar);
3684 if (new_fd != NULL) {
3685 /* Find and select */
3686 cf->search_in_progress = TRUE;
3687 found = packet_list_select_row_from_data(new_fd);
3688 cf->search_in_progress = FALSE;
3689 cf->search_pos = 0; /* Reset the position */
3691 /* We didn't find a row corresponding to this frame.
3692 This means that the frame isn't being displayed currently,
3693 so we can't select it. */
3694 simple_message_box(ESD_TYPE_INFO, NULL,
3695 "The capture file is probably not fully dissected.",
3696 "End of capture exceeded!");
3699 return TRUE; /* success */
3701 return FALSE; /* failure */
3705 cf_goto_frame(capture_file *cf, guint fnumber)
3709 fdata = frame_data_sequence_find(cf->frames, fnumber);
3711 if (fdata == NULL) {
3712 /* we didn't find a packet with that packet number */
3713 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3714 return FALSE; /* we failed to go to that packet */
3716 if (!fdata->flags.passed_dfilter) {
3717 /* that packet currently isn't displayed */
3718 /* XXX - add it to the set of displayed packets? */
3719 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3720 return FALSE; /* we failed to go to that packet */
3723 if (!packet_list_select_row_from_data(fdata)) {
3724 /* We didn't find a row corresponding to this frame.
3725 This means that the frame isn't being displayed currently,
3726 so we can't select it. */
3727 simple_message_box(ESD_TYPE_INFO, NULL,
3728 "The capture file is probably not fully dissected.",
3729 "End of capture exceeded!");
3732 return TRUE; /* we got to that packet */
3736 cf_goto_top_frame(void)
3738 /* Find and select */
3739 packet_list_select_first_row();
3740 return TRUE; /* we got to that packet */
3744 cf_goto_bottom_frame(void)
3746 /* Find and select */
3747 packet_list_select_last_row();
3748 return TRUE; /* we got to that packet */
3752 * Go to frame specified by currently selected protocol tree item.
3755 cf_goto_framenum(capture_file *cf)
3757 header_field_info *hfinfo;
3760 if (cf->finfo_selected) {
3761 hfinfo = cf->finfo_selected->hfinfo;
3763 if (hfinfo->type == FT_FRAMENUM) {
3764 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3766 return cf_goto_frame(cf, framenum);
3773 /* Select the packet on a given row. */
3775 cf_select_packet(capture_file *cf, int row)
3777 epan_dissect_t *old_edt;
3780 /* Get the frame data struct pointer for this frame */
3781 fdata = packet_list_get_row_data(row);
3783 if (fdata == NULL) {
3784 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3785 the first entry is added to it by "real_insert_row()", that row
3786 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3787 our version and the vanilla GTK+ version).
3789 This means that a "select-row" signal is emitted; this causes
3790 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3793 "cf_select_packet()" fetches, above, the data associated with the
3794 row that was selected; however, as "gtk_clist_append()", which
3795 called "real_insert_row()", hasn't yet returned, we haven't yet
3796 associated any data with that row, so we get back a null pointer.
3798 We can't assume that there's only one frame in the frame list,
3799 either, as we may be filtering the display.
3801 We therefore assume that, if "row" is 0, i.e. the first row
3802 is being selected, and "cf->first_displayed" equals
3803 "cf->last_displayed", i.e. there's only one frame being
3804 displayed, that frame is the frame we want.
3806 This means we have to set "cf->first_displayed" and
3807 "cf->last_displayed" before adding the row to the
3808 GtkCList; see the comment in "add_packet_to_packet_list()". */
3810 if (row == 0 && cf->first_displayed == cf->last_displayed)
3811 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3814 /* If fdata _still_ isn't set simply give up. */
3815 if (fdata == NULL) {
3819 /* Get the data in that frame. */
3820 if (!cf_read_frame (cf, fdata)) {
3824 /* Record that this frame is the current frame. */
3825 cf->current_frame = fdata;
3826 cf->current_row = row;
3829 /* Create the logical protocol tree. */
3830 /* We don't need the columns here. */
3831 cf->edt = epan_dissect_new(cf->epan, TRUE, TRUE);
3833 tap_build_interesting(cf->edt);
3834 epan_dissect_run(cf->edt, &cf->phdr, frame_tvbuff_new_buffer(cf->current_frame, &cf->buf),
3835 cf->current_frame, NULL);
3837 dfilter_macro_build_ftv_cache(cf->edt->tree);
3839 cf_callback_invoke(cf_cb_packet_selected, cf);
3841 if (old_edt != NULL)
3842 epan_dissect_free(old_edt);
3846 /* Unselect the selected packet, if any. */
3848 cf_unselect_packet(capture_file *cf)
3850 epan_dissect_t *old_edt = cf->edt;
3854 /* No packet is selected. */
3855 cf->current_frame = NULL;
3856 cf->current_row = 0;
3858 cf_callback_invoke(cf_cb_packet_unselected, cf);
3860 /* No protocol tree means no selected field. */
3861 cf_unselect_field(cf);
3863 /* Destroy the epan_dissect_t for the unselected packet. */
3864 if (old_edt != NULL)
3865 epan_dissect_free(old_edt);
3868 /* Unset the selected protocol tree field, if any. */
3870 cf_unselect_field(capture_file *cf)
3872 cf->finfo_selected = NULL;
3874 cf_callback_invoke(cf_cb_field_unselected, cf);
3878 * Mark a particular frame.
3881 cf_mark_frame(capture_file *cf, frame_data *frame)
3883 if (! frame->flags.marked) {
3884 frame->flags.marked = TRUE;
3885 if (cf->count > cf->marked_count)
3891 * Unmark a particular frame.
3894 cf_unmark_frame(capture_file *cf, frame_data *frame)
3896 if (frame->flags.marked) {
3897 frame->flags.marked = FALSE;
3898 if (cf->marked_count > 0)
3904 * Ignore a particular frame.
3907 cf_ignore_frame(capture_file *cf, frame_data *frame)
3909 if (! frame->flags.ignored) {
3910 frame->flags.ignored = TRUE;
3911 if (cf->count > cf->ignored_count)
3912 cf->ignored_count++;
3917 * Un-ignore a particular frame.
3920 cf_unignore_frame(capture_file *cf, frame_data *frame)
3922 if (frame->flags.ignored) {
3923 frame->flags.ignored = FALSE;
3924 if (cf->ignored_count > 0)
3925 cf->ignored_count--;
3930 * Read the comment in SHB block
3934 cf_read_shb_comment(capture_file *cf)
3936 wtapng_section_t *shb_inf;
3937 const gchar *temp_str;
3939 /* Get info from SHB */
3940 shb_inf = wtap_file_get_shb_info(cf->wth);
3941 if (shb_inf == NULL)
3943 temp_str = shb_inf->opt_comment;
3951 cf_update_capture_comment(capture_file *cf, gchar *comment)
3953 wtapng_section_t *shb_inf;
3955 /* Get info from SHB */
3956 shb_inf = wtap_file_get_shb_info(cf->wth);
3958 /* See if the comment has changed or not */
3959 if (shb_inf && shb_inf->opt_comment) {
3960 if (strcmp(shb_inf->opt_comment, comment) == 0) {
3969 /* The comment has changed, let's update it */
3970 wtap_write_shb_comment(cf->wth, comment);
3971 /* Mark the file as having unsaved changes */
3972 cf->unsaved_changes = TRUE;
3976 cf_get_user_packet_comment(capture_file *cf, const frame_data *fd)
3978 if (cf->frames_user_comments)
3979 return (const char *)g_tree_lookup(cf->frames_user_comments, fd);
3986 cf_get_comment(capture_file *cf, const frame_data *fd)
3988 /* fetch user comment */
3989 if (fd->flags.has_user_comment)
3990 return g_strdup(cf_get_user_packet_comment(cf, fd));
3992 /* fetch phdr comment */
3993 if (fd->flags.has_phdr_comment) {
3994 struct wtap_pkthdr phdr; /* Packet header */
3995 Buffer buf; /* Packet data */
3997 phdr.opt_comment = NULL;
3999 buffer_init(&buf, 1500);
4000 if (!cf_read_frame_r(cf, fd, &phdr, &buf))
4001 { /* XXX, what we can do here? */ }
4004 return phdr.opt_comment;
4010 frame_cmp(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4012 const frame_data *fdata1 = (const frame_data *) a;
4013 const frame_data *fdata2 = (const frame_data *) b;
4015 return (fdata1->num < fdata2->num) ? -1 :
4016 (fdata1->num > fdata2->num) ? 1 :
4021 cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment)
4023 char *pkt_comment = cf_get_comment(cf, fd);
4025 /* Check if the comment has changed */
4026 if (!g_strcmp0(pkt_comment, new_comment)) {
4027 g_free(pkt_comment);
4030 g_free(pkt_comment);
4033 cf->packet_comment_count--;
4036 cf->packet_comment_count++;
4038 fd->flags.has_user_comment = TRUE;
4040 if (!cf->frames_user_comments)
4041 cf->frames_user_comments = g_tree_new_full(frame_cmp, NULL, NULL, g_free);
4043 /* insert new packet comment */
4044 g_tree_replace(cf->frames_user_comments, fd, g_strdup(new_comment));
4046 expert_update_comment_count(cf->packet_comment_count);
4048 /* OK, we have unsaved changes. */
4049 cf->unsaved_changes = TRUE;
4054 * What types of comments does this capture file have?
4057 cf_comment_types(capture_file *cf)
4059 guint32 comment_types = 0;
4061 if (cf_read_shb_comment(cf) != NULL)
4062 comment_types |= WTAP_COMMENT_PER_SECTION;
4063 if (cf->packet_comment_count != 0)
4064 comment_types |= WTAP_COMMENT_PER_PACKET;
4065 return comment_types;
4072 } save_callback_args_t;
4075 * Save a capture to a file, in a particular format, saving either
4076 * all packets, all currently-displayed packets, or all marked packets.
4078 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4079 * up a message box for the failure.
4082 save_packet(capture_file *cf _U_, frame_data *fdata,
4083 struct wtap_pkthdr *phdr, const guint8 *pd,
4086 save_callback_args_t *args = (save_callback_args_t *)argsp;
4087 struct wtap_pkthdr hdr;
4089 gchar *display_basename;
4090 const char *pkt_comment;
4092 if (fdata->flags.has_user_comment)
4093 pkt_comment = cf_get_user_packet_comment(cf, fdata);
4095 pkt_comment = phdr->opt_comment;
4097 /* init the wtap header for saving */
4098 /* TODO: reuse phdr */
4099 /* XXX - these are the only flags that correspond to data that we have
4100 in the frame_data structure and that matter on a per-packet basis.
4102 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
4103 and "on the wire" lengths, or it doesn't.
4105 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
4108 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
4109 from the packet flags. */
4110 hdr.presence_flags = 0;
4111 if (fdata->flags.has_ts)
4112 hdr.presence_flags |= WTAP_HAS_TS;
4113 if (phdr->presence_flags & WTAP_HAS_INTERFACE_ID)
4114 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
4115 if (phdr->presence_flags & WTAP_HAS_PACK_FLAGS)
4116 hdr.presence_flags |= WTAP_HAS_PACK_FLAGS;
4117 hdr.ts.secs = fdata->abs_ts.secs;
4118 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4119 hdr.caplen = fdata->cap_len;
4120 hdr.len = fdata->pkt_len;
4121 hdr.pkt_encap = fdata->lnk_t;
4123 hdr.interface_id = phdr->interface_id; /* identifier of the interface. */
4125 hdr.pack_flags = phdr->pack_flags;
4126 hdr.opt_comment = g_strdup(pkt_comment);
4129 hdr.pseudo_header = phdr->pseudo_header;
4132 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
4134 /* and save the packet */
4135 if (!wtap_dump(args->pdh, &hdr, pd, &err)) {
4137 /* Wiretap error. */
4140 case WTAP_ERR_UNSUPPORTED_ENCAP:
4142 * This is a problem with the particular frame we're writing;
4143 * note that, and give the frame number.
4145 simple_error_message_box(
4146 "Frame %u has a network type that can't be saved in a \"%s\" file.",
4147 fdata->num, wtap_file_type_string(args->file_type));
4151 display_basename = g_filename_display_basename(args->fname);
4152 simple_error_message_box(
4153 "An error occurred while writing to the file \"%s\": %s.",
4154 display_basename, wtap_strerror(err));
4155 g_free(display_basename);
4160 write_failure_alert_box(args->fname, err);
4165 g_free(hdr.opt_comment);
4170 * Can this capture file be written out in any format using Wiretap
4171 * rather than by copying the raw data?
4174 cf_can_write_with_wiretap(capture_file *cf)
4176 /* We don't care whether we support the comments in this file or not;
4177 if we can't, we'll offer the user the option of discarding the
4179 return wtap_dump_can_write(cf->linktypes, 0);
4183 * Should we let the user do a save?
4187 * the file has unsaved changes, and we can save it in some
4188 * format through Wiretap
4192 * the file is a temporary file and has no unsaved changes (so
4193 * that "saving" it just means copying it).
4195 * XXX - we shouldn't allow files to be edited if they can't be saved,
4196 * so cf->unsaved_changes should be true only if the file can be saved.
4198 * We don't care whether we support the comments in this file or not;
4199 * if we can't, we'll offer the user the option of discarding the
4203 cf_can_save(capture_file *cf)
4205 if (cf->unsaved_changes && wtap_dump_can_write(cf->linktypes, 0)) {
4206 /* Saved changes, and we can write it out with Wiretap. */
4210 if (cf->is_tempfile && !cf->unsaved_changes) {
4212 * Temporary file with no unsaved changes, so we can just do a
4218 /* Nothing to save. */
4223 * Should we let the user do a "save as"?
4227 * we can save it in some format through Wiretap
4231 * the file is a temporary file and has no unsaved changes (so
4232 * that "saving" it just means copying it).
4234 * XXX - we shouldn't allow files to be edited if they can't be saved,
4235 * so cf->unsaved_changes should be true only if the file can be saved.
4237 * We don't care whether we support the comments in this file or not;
4238 * if we can't, we'll offer the user the option of discarding the
4242 cf_can_save_as(capture_file *cf)
4244 if (wtap_dump_can_write(cf->linktypes, 0)) {
4245 /* We can write it out with Wiretap. */
4249 if (cf->is_tempfile && !cf->unsaved_changes) {
4251 * Temporary file with no unsaved changes, so we can just do a
4257 /* Nothing to save. */
4262 * Does this file have unsaved data?
4265 cf_has_unsaved_data(capture_file *cf)
4268 * If this is a temporary file, or a file with unsaved changes, it
4271 return cf->is_tempfile || cf->unsaved_changes;
4275 * Quick scan to find packet offsets.
4277 static cf_read_status_t
4278 rescan_file(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
4280 const struct wtap_pkthdr *phdr;
4285 progdlg_t *progbar = NULL;
4289 GTimeVal start_time;
4290 gchar status_str[100];
4291 gint64 progbar_nextstep;
4292 gint64 progbar_quantum;
4297 int displayed_once = 0;
4300 /* Close the old handle. */
4301 wtap_close(cf->wth);
4303 /* Open the new file. */
4304 cf->wth = wtap_open_offline(fname, err, &err_info, TRUE);
4305 if (cf->wth == NULL) {
4306 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
4307 return CF_READ_ERROR;
4310 /* We're scanning a file whose contents should be the same as what
4311 we had before, so we don't discard dissection state etc.. */
4314 /* Set the file name because we need it to set the follow stream filter.
4315 XXX - is that still true? We need it for other reasons, though,
4317 cf->filename = g_strdup(fname);
4319 /* Indicate whether it's a permanent or temporary file. */
4320 cf->is_tempfile = is_tempfile;
4322 /* No user changes yet. */
4323 cf->unsaved_changes = FALSE;
4325 cf->cd_t = wtap_file_type(cf->wth);
4326 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
4328 cf->snap = wtap_snapshot_length(cf->wth);
4329 if (cf->snap == 0) {
4330 /* Snapshot length not known. */
4331 cf->has_snap = FALSE;
4332 cf->snap = WTAP_MAX_PACKET_SIZE;
4334 cf->has_snap = TRUE;
4336 name_ptr = g_filename_display_basename(cf->filename);
4338 cf_callback_invoke(cf_cb_file_rescan_started, cf);
4340 /* Record whether the file is compressed.
4341 XXX - do we know this at open time? */
4342 cf->iscompressed = wtap_iscompressed(cf->wth);
4344 /* Find the size of the file. */
4345 size = wtap_file_size(cf->wth, NULL);
4347 /* Update the progress bar when it gets to this value. */
4348 progbar_nextstep = 0;
4349 /* When we reach the value that triggers a progress bar update,
4350 bump that value by this amount. */
4352 progbar_quantum = size/N_PROGBAR_UPDATES;
4353 if (progbar_quantum < MIN_QUANTUM)
4354 progbar_quantum = MIN_QUANTUM;
4356 progbar_quantum = 0;
4359 g_get_current_time(&start_time);
4362 phdr = wtap_phdr(cf->wth);
4363 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
4365 fdata = frame_data_sequence_find(cf->frames, framenum);
4366 fdata->file_off = data_offset;
4369 file_pos = wtap_read_so_far(cf->wth);
4371 /* Create the progress bar if necessary.
4372 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
4374 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
4375 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4376 progbar = delayed_create_progress_dlg(cf->window, "Rescanning", name_ptr,
4377 TRUE, &stop_flag, &start_time, progbar_val);
4380 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
4381 when we update it, we have to run the GTK+ main loop to get it
4382 to repaint what's pending, and doing so may involve an "ioctl()"
4383 to see if there's any pending input from an X server, and doing
4384 that for every packet can be costly, especially on a big file. */
4385 if (file_pos >= progbar_nextstep) {
4386 if (progbar != NULL) {
4387 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4388 /* update the packet bar content on the first run or frequently on very large files */
4390 if (progbar_quantum > 500000 || displayed_once == 0) {
4391 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
4393 packets_bar_update();
4396 #endif /* HAVE_LIBPCAP */
4397 update_progress_dlg(progbar, progbar_val, status_str);
4399 progbar_nextstep += progbar_quantum;
4404 /* Well, the user decided to abort the rescan. Sadly, as this
4405 isn't a reread, recovering is difficult, so we'll just
4406 close the current capture. */
4410 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4411 it's not already there.
4412 XXX - yes, this is O(N), so if every packet had a different
4413 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4414 there are probably going to be a small number of encapsulation types
4416 cf_add_encapsulation_type(cf, phdr->pkt_encap);
4419 /* Free the display name */
4422 /* We're done reading the file; destroy the progress bar if it was created. */
4423 if (progbar != NULL)
4424 destroy_progress_dlg(progbar);
4426 /* We're done reading sequentially through the file. */
4427 cf->state = FILE_READ_DONE;
4429 /* Close the sequential I/O side, to free up memory it requires. */
4430 wtap_sequential_close(cf->wth);
4432 /* compute the time it took to load the file */
4433 compute_elapsed(cf, &start_time);
4435 /* Set the file encapsulation type now; we don't know what it is until
4436 we've looked at all the packets, as we don't know until then whether
4437 there's more than one type (and thus whether it's
4438 WTAP_ENCAP_PER_PACKET). */
4439 cf->lnk_t = wtap_file_encap(cf->wth);
4441 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
4444 /* Our caller will give up at this point. */
4445 return CF_READ_ABORTED;
4449 /* Put up a message box noting that the read failed somewhere along
4450 the line. Don't throw out the stuff we managed to read, though,
4454 case WTAP_ERR_UNSUPPORTED:
4455 simple_error_message_box(
4456 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4461 case WTAP_ERR_UNSUPPORTED_ENCAP:
4462 simple_error_message_box(
4463 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
4468 case WTAP_ERR_CANT_READ:
4469 simple_error_message_box(
4470 "An attempt to read from the capture file failed for"
4471 " some unknown reason.");
4474 case WTAP_ERR_SHORT_READ:
4475 simple_error_message_box(
4476 "The capture file appears to have been cut short"
4477 " in the middle of a packet.");
4480 case WTAP_ERR_BAD_FILE:
4481 simple_error_message_box(
4482 "The capture file appears to be damaged or corrupt.\n(%s)",
4487 case WTAP_ERR_DECOMPRESS:
4488 simple_error_message_box(
4489 "The compressed capture file appears to be damaged or corrupt.\n"
4495 simple_error_message_box(
4496 "An error occurred while reading the"
4497 " capture file: %s.", wtap_strerror(*err));
4500 return CF_READ_ERROR;
4506 cf_save_packets(capture_file *cf, const char *fname, guint save_format,
4507 gboolean compressed, gboolean discard_comments,
4508 gboolean dont_reopen)
4511 gchar *fname_new = NULL;
4514 addrinfo_lists_t *addr_lists;
4518 gchar *display_basename;
4525 save_callback_args_t callback_args;
4527 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4529 addr_lists = get_addrinfo_list();
4531 if (save_format == cf->cd_t && compressed == cf->iscompressed
4532 && !discard_comments && !cf->unsaved_changes
4533 && !(addr_lists && wtap_dump_has_name_resolution(save_format))) {
4534 /* We're saving in the format it's already in, and we're
4535 not discarding comments, and there are no changes we have
4536 in memory that aren't saved to the file, and we have no name
4537 resolution blocks to write, so we can just move or copy the raw data. */
4539 if (cf->is_tempfile) {
4540 /* The file being saved is a temporary file from a live
4541 capture, so it doesn't need to stay around under that name;
4542 first, try renaming the capture buffer file to the new name.
4543 This acts as a "safe save", in that, if the file already
4544 exists, the existing file will be removed only if the rename
4547 Sadly, on Windows, as we have the current capture file
4548 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4549 (to cause the rename to remove an existing target), as
4550 done by ws_stdio_rename() (ws_rename() is #defined to
4551 be ws_stdio_rename() on Windows) will fail.
4553 According to the MSDN documentation for CreateFile(), if,
4554 when we open a capture file, we were to directly do a CreateFile(),
4555 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4556 convert it to a file descriptor with _open_osfhandle(),
4557 that would allow the file to be renamed out from under us.
4559 However, that doesn't work in practice. Perhaps the problem
4560 is that the process doing the rename is the process that
4561 has the file open. */
4563 if (ws_rename(cf->filename, fname) == 0) {
4564 /* That succeeded - there's no need to copy the source file. */
4565 how_to_save = SAVE_WITH_MOVE;
4567 if (errno == EXDEV) {
4568 /* They're on different file systems, so we have to copy the
4570 how_to_save = SAVE_WITH_COPY;
4572 /* The rename failed, but not because they're on different
4573 file systems - put up an error message. (Or should we
4574 just punt and try to copy? The only reason why I'd
4575 expect the rename to fail and the copy to succeed would
4576 be if we didn't have permission to remove the file from
4577 the temporary directory, and that might be fixable - but
4578 is it worth requiring the user to go off and fix it?) */
4579 cf_rename_failure_alert_box(fname, errno);
4584 how_to_save = SAVE_WITH_COPY;
4587 /* It's a permanent file, so we should copy it, and not remove the
4589 how_to_save = SAVE_WITH_COPY;
4592 if (how_to_save == SAVE_WITH_COPY) {
4593 /* Copy the file, if we haven't moved it. If we're overwriting
4594 an existing file, we do it with a "safe save", by writing
4595 to a new file and, if the write succeeds, renaming the
4596 new file on top of the old file. */
4597 if (file_exists(fname)) {
4598 fname_new = g_strdup_printf("%s~", fname);
4599 if (!copy_file_binary_mode(cf->filename, fname_new))
4602 if (!copy_file_binary_mode(cf->filename, fname))
4607 /* Either we're saving in a different format or we're saving changes,
4608 such as added, modified, or removed comments, that haven't yet
4609 been written to the underlying file; we can't do that by copying
4610 or moving the capture file, we have to do it by writing the packets
4613 wtapng_section_t *shb_hdr = NULL;
4614 wtapng_iface_descriptions_t *idb_inf = NULL;
4617 shb_hdr = wtap_file_get_shb_info(cf->wth);
4618 idb_inf = wtap_file_get_idb_info(cf->wth);
4620 /* Determine what file encapsulation type we should use. */
4621 encap = wtap_dump_file_encap_type(cf->linktypes);
4623 if (file_exists(fname)) {
4624 /* We're overwriting an existing file; write out to a new file,
4625 and, if that succeeds, rename the new file on top of the
4626 old file. That makes this a "safe save", so that we don't
4627 lose the old file if we have a problem writing out the new
4628 file. (If the existing file is the current capture file,
4629 we *HAVE* to do that, otherwise we're overwriting the file
4630 from which we're reading the packets that we're writing!) */
4631 fname_new = g_strdup_printf("%s~", fname);
4632 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4633 compressed, shb_hdr, idb_inf, &err);
4635 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4636 compressed, shb_hdr, idb_inf, &err);
4642 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4646 /* Add address resolution */
4647 wtap_dump_set_addrinfo_list(pdh, addr_lists);
4649 /* Iterate through the list of packets, processing all the packets. */
4650 callback_args.pdh = pdh;
4651 callback_args.fname = fname;
4652 callback_args.file_type = save_format;
4653 switch (process_specified_packets(cf, NULL, "Saving", "packets",
4654 TRUE, save_packet, &callback_args)) {
4657 /* Completed successfully. */
4661 /* The user decided to abort the saving.
4662 If we're writing to a temporary file, remove it.
4663 XXX - should we do so even if we're not writing to a
4665 wtap_dump_close(pdh, &err);
4666 if (fname_new != NULL)
4667 ws_unlink(fname_new);
4668 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
4669 return CF_WRITE_ABORTED;
4672 /* Error while saving.
4673 If we're writing to a temporary file, remove it. */
4674 if (fname_new != NULL)
4675 ws_unlink(fname_new);
4676 wtap_dump_close(pdh, &err);
4680 if (!wtap_dump_close(pdh, &err)) {
4681 cf_close_failure_alert_box(fname, err);
4685 how_to_save = SAVE_WITH_WTAP;
4688 if (fname_new != NULL) {
4689 /* We wrote out to fname_new, and should rename it on top of
4690 fname. fname_new is now closed, so that should be possible even
4691 on Windows. However, on Windows, we first need to close whatever
4692 file descriptors we have open for fname. */
4694 wtap_fdclose(cf->wth);
4696 /* Now do the rename. */
4697 if (ws_rename(fname_new, fname) == -1) {
4698 /* Well, the rename failed. */
4699 cf_rename_failure_alert_box(fname, errno);
4701 /* Attempt to reopen the random file descriptor using the
4702 current file's filename. (At this point, the sequential
4703 file descriptor is closed.) */
4704 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4705 /* Oh, well, we're screwed. */
4706 display_basename = g_filename_display_basename(cf->filename);
4707 simple_error_message_box(
4708 file_open_error_message(err, FALSE), display_basename);
4709 g_free(display_basename);
4716 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4717 cf->unsaved_changes = FALSE;
4720 switch (how_to_save) {
4722 case SAVE_WITH_MOVE:
4723 /* We just moved the file, so the wtap structure refers to the
4724 new file, and all the information other than the filename
4725 and the "is temporary" status applies to the new file; just
4727 g_free(cf->filename);
4728 cf->filename = g_strdup(fname);
4729 cf->is_tempfile = FALSE;
4730 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4733 case SAVE_WITH_COPY:
4734 /* We just copied the file, s all the information other than
4735 the wtap structure, the filename, and the "is temporary"
4736 status applies to the new file; just update that. */
4737 wtap_close(cf->wth);
4738 cf->wth = wtap_open_offline(fname, &err, &err_info, TRUE);
4739 if (cf->wth == NULL) {
4740 cf_open_failure_alert_box(fname, err, err_info, FALSE, 0);
4743 g_free(cf->filename);
4744 cf->filename = g_strdup(fname);
4745 cf->is_tempfile = FALSE;
4747 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4750 case SAVE_WITH_WTAP:
4751 /* Open and read the file we saved to.
4753 XXX - this is somewhat of a waste; we already have the
4754 packets, all this gets us is updated file type information
4755 (which we could just stuff into "cf"), and having the new
4756 file be the one we have opened and from which we're reading
4757 the data, and it means we have to spend time opening and
4758 reading the file, which could be a significant amount of
4759 time if the file is large.
4761 If the capture-file-writing code were to return the
4762 seek offset of each packet it writes, we could save that
4763 in the frame_data structure for the frame, and just open
4764 the file without reading it again...
4766 ...as long as, for gzipped files, the process of writing
4767 out the file *also* generates the information needed to
4768 support fast random access to the compressed file. */
4769 if (rescan_file(cf, fname, FALSE, &err) != CF_READ_OK) {
4770 /* The rescan failed; just close the file. Either
4771 a dialog was popped up for the failure, so the
4772 user knows what happened, or they stopped the
4773 rescan, in which case they know what happened. */
4779 /* If we were told to discard the comments, do so. */
4780 if (discard_comments) {
4781 /* Remove SHB comment, if any. */
4782 wtap_write_shb_comment(cf->wth, NULL);
4784 /* remove all user comments */
4785 for (framenum = 1; framenum <= cf->count; framenum++) {
4786 fdata = frame_data_sequence_find(cf->frames, framenum);
4788 fdata->flags.has_phdr_comment = FALSE;
4789 fdata->flags.has_user_comment = FALSE;
4792 if (cf->frames_user_comments) {
4793 g_tree_destroy(cf->frames_user_comments);
4794 cf->frames_user_comments = NULL;
4797 cf->packet_comment_count = 0;
4803 if (fname_new != NULL) {
4804 /* We were trying to write to a temporary file; get rid of it if it
4805 exists. (We don't care whether this fails, as, if it fails,
4806 there's not much we can do about it. I guess if it failed for
4807 a reason other than "it doesn't exist", we could report an
4808 error, so the user knows there's a junk file that they might
4809 want to clean up.) */
4810 ws_unlink(fname_new);
4813 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4814 return CF_WRITE_ERROR;
4818 cf_export_specified_packets(capture_file *cf, const char *fname,
4819 packet_range_t *range, guint save_format,
4820 gboolean compressed)
4822 gchar *fname_new = NULL;
4825 save_callback_args_t callback_args;
4826 wtapng_section_t *shb_hdr;
4827 wtapng_iface_descriptions_t *idb_inf;
4830 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4832 packet_range_process_init(range);
4834 /* We're writing out specified packets from the specified capture
4835 file to another file. Even if all captured packets are to be
4836 written, don't special-case the operation - read each packet
4837 and then write it out if it's one of the specified ones. */
4839 shb_hdr = wtap_file_get_shb_info(cf->wth);
4840 idb_inf = wtap_file_get_idb_info(cf->wth);
4842 /* Determine what file encapsulation type we should use. */
4843 encap = wtap_dump_file_encap_type(cf->linktypes);
4845 if (file_exists(fname)) {
4846 /* We're overwriting an existing file; write out to a new file,
4847 and, if that succeeds, rename the new file on top of the
4848 old file. That makes this a "safe save", so that we don't
4849 lose the old file if we have a problem writing out the new
4850 file. (If the existing file is the current capture file,
4851 we *HAVE* to do that, otherwise we're overwriting the file
4852 from which we're reading the packets that we're writing!) */
4853 fname_new = g_strdup_printf("%s~", fname);
4854 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4855 compressed, shb_hdr, idb_inf, &err);
4857 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4858 compressed, shb_hdr, idb_inf, &err);
4864 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4868 /* Add address resolution */
4869 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4871 /* Iterate through the list of packets, processing the packets we were
4874 XXX - we've already called "packet_range_process_init(range)", but
4875 "process_specified_packets()" will do it again. Fortunately,
4876 that's harmless in this case, as we haven't done anything to
4877 "range" since we initialized it. */
4878 callback_args.pdh = pdh;
4879 callback_args.fname = fname;
4880 callback_args.file_type = save_format;
4881 switch (process_specified_packets(cf, range, "Writing", "specified packets",
4882 TRUE, save_packet, &callback_args)) {
4885 /* Completed successfully. */
4889 /* The user decided to abort the saving.
4890 If we're writing to a temporary file, remove it.
4891 XXX - should we do so even if we're not writing to a
4893 wtap_dump_close(pdh, &err);
4894 if (fname_new != NULL)
4895 ws_unlink(fname_new);
4896 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4897 return CF_WRITE_ABORTED;
4901 /* Error while saving.
4902 If we're writing to a temporary file, remove it. */
4903 if (fname_new != NULL)
4904 ws_unlink(fname_new);
4905 wtap_dump_close(pdh, &err);
4909 if (!wtap_dump_close(pdh, &err)) {
4910 cf_close_failure_alert_box(fname, err);
4914 if (fname_new != NULL) {
4915 /* We wrote out to fname_new, and should rename it on top of
4916 fname; fname is now closed, so that should be possible even
4917 on Windows. Do the rename. */
4918 if (ws_rename(fname_new, fname) == -1) {
4919 /* Well, the rename failed. */
4920 cf_rename_failure_alert_box(fname, errno);
4925 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
4929 if (fname_new != NULL) {
4930 /* We were trying to write to a temporary file; get rid of it if it
4931 exists. (We don't care whether this fails, as, if it fails,
4932 there's not much we can do about it. I guess if it failed for
4933 a reason other than "it doesn't exist", we could report an
4934 error, so the user knows there's a junk file that they might
4935 want to clean up.) */
4936 ws_unlink(fname_new);
4939 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
4940 return CF_WRITE_ERROR;
4944 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4945 gboolean for_writing, int file_type)
4947 gchar *display_basename;
4950 /* Wiretap error. */
4951 display_basename = g_filename_display_basename(filename);
4954 case WTAP_ERR_NOT_REGULAR_FILE:
4955 simple_error_message_box(
4956 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4960 case WTAP_ERR_RANDOM_OPEN_PIPE:
4961 /* Seen only when opening a capture file for reading. */
4962 simple_error_message_box(
4963 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
4964 "To capture from a pipe or FIFO use wireshark -i -",
4968 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4969 /* Seen only when opening a capture file for reading. */
4970 simple_error_message_box(
4971 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4975 case WTAP_ERR_UNSUPPORTED:
4976 /* Seen only when opening a capture file for reading. */
4977 simple_error_message_box(
4978 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4980 display_basename, err_info);
4984 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4985 /* Seen only when opening a capture file for writing. */
4986 simple_error_message_box(
4987 "The file \"%s\" is a pipe, and %s capture files can't be "
4988 "written to a pipe.",
4989 display_basename, wtap_file_type_string(file_type));
4992 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
4993 /* Seen only when opening a capture file for writing. */
4994 simple_error_message_box(
4995 "Wireshark doesn't support writing capture files in that format.");
4998 case WTAP_ERR_UNSUPPORTED_ENCAP:
5000 simple_error_message_box("Wireshark can't save this capture in that format.");
5002 simple_error_message_box(
5003 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
5005 display_basename, err_info);
5010 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
5012 simple_error_message_box(
5013 "Wireshark can't save this capture in that format.");
5015 simple_error_message_box(
5016 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
5021 case WTAP_ERR_BAD_FILE:
5022 /* Seen only when opening a capture file for reading. */
5023 simple_error_message_box(
5024 "The file \"%s\" appears to be damaged or corrupt.\n"
5026 display_basename, err_info);
5030 case WTAP_ERR_CANT_OPEN:
5032 simple_error_message_box(
5033 "The file \"%s\" could not be created for some unknown reason.",
5036 simple_error_message_box(
5037 "The file \"%s\" could not be opened for some unknown reason.",
5042 case WTAP_ERR_SHORT_READ:
5043 simple_error_message_box(
5044 "The file \"%s\" appears to have been cut short"
5045 " in the middle of a packet or other data.",
5049 case WTAP_ERR_SHORT_WRITE:
5050 simple_error_message_box(
5051 "A full header couldn't be written to the file \"%s\".",
5055 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
5056 simple_error_message_box(
5057 "This file type cannot be written as a compressed file.");
5060 case WTAP_ERR_DECOMPRESS:
5061 simple_error_message_box(
5062 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
5063 "(%s)", display_basename, err_info);
5068 simple_error_message_box(
5069 "The file \"%s\" could not be %s: %s.",
5071 for_writing ? "created" : "opened",
5072 wtap_strerror(err));
5075 g_free(display_basename);
5078 open_failure_alert_box(filename, err, for_writing);
5083 * XXX - whether we mention the source pathname, the target pathname,
5084 * or both depends on the error and on what we find if we look for
5085 * one or both of them.
5088 cf_rename_failure_alert_box(const char *filename, int err)
5090 gchar *display_basename;
5092 display_basename = g_filename_display_basename(filename);
5096 /* XXX - should check whether the source exists and, if not,
5097 report it as the problem and, if so, report the destination
5099 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
5104 /* XXX - if we're doing a rename after a safe save, we should
5105 probably say something else. */
5106 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
5111 /* XXX - this should probably mention both the source and destination
5113 simple_error_message_box("The file \"%s\" could not be moved: %s.",
5114 display_basename, wtap_strerror(err));
5117 g_free(display_basename);
5120 /* Check for write errors - if the file is being written to an NFS server,
5121 a write error may not show up until the file is closed, as NFS clients
5122 might not send writes to the server until the "write()" call finishes,
5123 so that the write may fail on the server but the "write()" may succeed. */
5125 cf_close_failure_alert_box(const char *filename, int err)
5127 gchar *display_basename;
5130 /* Wiretap error. */
5131 display_basename = g_filename_display_basename(filename);
5134 case WTAP_ERR_CANT_CLOSE:
5135 simple_error_message_box(
5136 "The file \"%s\" couldn't be closed for some unknown reason.",
5140 case WTAP_ERR_SHORT_WRITE:
5141 simple_error_message_box(
5142 "Not all the packets could be written to the file \"%s\".",
5147 simple_error_message_box(
5148 "An error occurred while closing the file \"%s\": %s.",
5149 display_basename, wtap_strerror(err));
5152 g_free(display_basename);
5155 We assume that a close error from the OS is really a write error. */
5156 write_failure_alert_box(filename, err);
5160 /* Reload the current capture file. */
5162 cf_reload(capture_file *cf) {
5164 gboolean is_tempfile;
5167 /* If the file could be opened, "cf_open()" calls "cf_close()"
5168 to get rid of state for the old capture file before filling in state
5169 for the new capture file. "cf_close()" will remove the file if
5170 it's a temporary file; we don't want that to happen (for one thing,
5171 it'd prevent subsequent reopens from working). Remember whether it's
5172 a temporary file, mark it as not being a temporary file, and then
5173 reopen it as the type of file it was.
5175 Also, "cf_close()" will free "cf->filename", so we must make
5176 a copy of it first. */
5177 filename = g_strdup(cf->filename);
5178 is_tempfile = cf->is_tempfile;
5179 cf->is_tempfile = FALSE;
5180 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
5181 switch (cf_read(cf, TRUE)) {
5185 /* Just because we got an error, that doesn't mean we were unable
5186 to read any of the file; we handle what we could get from the
5190 case CF_READ_ABORTED:
5191 /* The user bailed out of re-reading the capture file; the
5192 capture file has been closed - just free the capture file name
5193 string and return (without changing the last containing
5199 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
5200 Instead, the file was left open, so we should restore "cf->is_tempfile"
5203 XXX - change the menu? Presumably "cf_open()" will do that;
5204 make sure it does! */
5205 cf->is_tempfile = is_tempfile;
5207 /* "cf_open()" made a copy of the file name we handed it, so
5208 we should free up our copy. */
5218 * indent-tabs-mode: nil
5221 * ex: set shiftwidth=2 tabstop=8 expandtab:
5222 * :indentSize=2:tabSize=8:noTabs=true: