4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
33 #include <wsutil/tempfile.h>
34 #include <wsutil/file_util.h>
35 #include <wsutil/filesystem.h>
36 #include <ws_version_info.h>
38 #include <wiretap/merge.h>
40 #include <epan/exceptions.h>
41 #include <epan/epan-int.h>
42 #include <epan/epan.h>
43 #include <epan/column.h>
44 #include <epan/packet.h>
45 #include <epan/column-utils.h>
46 #include <epan/expert.h>
47 #include <epan/prefs.h>
48 #include <epan/dfilter/dfilter.h>
49 #include <epan/epan_dissect.h>
51 #include <epan/dissectors/packet-ber.h>
52 #include <epan/timestamp.h>
53 #include <epan/dfilter/dfilter-macro.h>
54 #include <epan/strutil.h>
55 #include <epan/addr_resolv.h>
56 #include <epan/color_filters.h>
61 #include "frame_tvbuff.h"
63 #include "ui/alert_box.h"
64 #include "ui/simple_dialog.h"
65 #include "ui/main_statusbar.h"
66 #include "ui/progress_dlg.h"
67 #include "ui/ui_util.h"
69 /* Needed for addrinfo */
70 #ifdef HAVE_SYS_TYPES_H
71 # include <sys/types.h>
74 #ifdef HAVE_SYS_SOCKET_H
75 #include <sys/socket.h>
78 #ifdef HAVE_NETINET_IN_H
79 # include <netinet/in.h>
86 #ifdef HAVE_WINSOCK2_H
87 # include <winsock2.h>
91 # include <ws2tcpip.h>
95 gboolean auto_scroll_live; /* GTK+ only? */
98 static int read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
99 column_info *cinfo, gint64 offset);
101 static void rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect);
108 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
110 static void match_subtree_text(proto_node *node, gpointer data);
111 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
113 static match_result match_narrow_and_wide(capture_file *cf, frame_data *fdata,
115 static match_result match_narrow(capture_file *cf, frame_data *fdata,
117 static match_result match_wide(capture_file *cf, frame_data *fdata,
119 static match_result match_binary(capture_file *cf, frame_data *fdata,
121 static match_result match_regex(capture_file *cf, frame_data *fdata,
123 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
125 static match_result match_marked(capture_file *cf, frame_data *fdata,
127 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
129 static gboolean find_packet(capture_file *cf,
130 match_result (*match_function)(capture_file *, frame_data *, void *),
131 void *criterion, search_direction dir);
133 static const char *cf_get_user_packet_comment(capture_file *cf, const frame_data *fd);
135 static void cf_open_failure_alert_box(const char *filename, int err,
136 gchar *err_info, gboolean for_writing,
138 static void cf_rename_failure_alert_box(const char *filename, int err);
139 static void cf_close_failure_alert_box(const char *filename, int err);
140 static void ref_time_packets(capture_file *cf);
142 /* Seconds spent processing packets between pushing UI updates. */
143 #define PROGBAR_UPDATE_INTERVAL 0.150
145 /* Show the progress bar after this many seconds. */
146 #define PROGBAR_SHOW_DELAY 0.5
149 * We could probably use g_signal_...() instead of the callbacks below but that
150 * would require linking our CLI programs to libgobject and creating an object
151 * instance for the signals.
154 cf_callback_t cb_fct;
156 } cf_callback_data_t;
158 static GList *cf_callbacks = NULL;
161 cf_callback_invoke(int event, gpointer data)
163 cf_callback_data_t *cb;
164 GList *cb_item = cf_callbacks;
166 /* there should be at least one interested */
167 g_assert(cb_item != NULL);
169 while (cb_item != NULL) {
170 cb = (cf_callback_data_t *)cb_item->data;
171 cb->cb_fct(event, data, cb->user_data);
172 cb_item = g_list_next(cb_item);
178 cf_callback_add(cf_callback_t func, gpointer user_data)
180 cf_callback_data_t *cb;
182 cb = g_new(cf_callback_data_t,1);
184 cb->user_data = user_data;
186 cf_callbacks = g_list_prepend(cf_callbacks, cb);
190 cf_callback_remove(cf_callback_t func, gpointer user_data)
192 cf_callback_data_t *cb;
193 GList *cb_item = cf_callbacks;
195 while (cb_item != NULL) {
196 cb = (cf_callback_data_t *)cb_item->data;
197 if (cb->cb_fct == func && cb->user_data == user_data) {
198 cf_callbacks = g_list_remove(cf_callbacks, cb);
202 cb_item = g_list_next(cb_item);
205 g_assert_not_reached();
209 cf_timestamp_auto_precision(capture_file *cf)
213 /* don't try to get the file's precision if none is opened */
214 if (cf->state == FILE_CLOSED) {
218 /* Set the column widths of those columns that show the time in
219 "command-line-specified" format. */
220 for (i = 0; i < cf->cinfo.num_cols; i++) {
221 if (col_has_time_fmt(&cf->cinfo, i)) {
222 packet_list_resize_column(i);
228 cf_get_computed_elapsed(capture_file *cf)
230 return cf->computed_elapsed;
234 * GLIB_CHECK_VERSION(2,28,0) adds g_get_real_time which could minimize or
237 static void compute_elapsed(capture_file *cf, GTimeVal *start_time)
242 g_get_current_time(&time_now);
244 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
245 time_now.tv_usec - start_time->tv_usec;
247 cf->computed_elapsed = (gulong) (delta_time / 1000); /* ms */
250 static const nstime_t *
251 ws_get_frame_ts(void *data, guint32 frame_num)
253 capture_file *cf = (capture_file *) data;
255 if (cf->prev_dis && cf->prev_dis->num == frame_num)
256 return &cf->prev_dis->abs_ts;
258 if (cf->prev_cap && cf->prev_cap->num == frame_num)
259 return &cf->prev_cap->abs_ts;
262 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
264 return (fd) ? &fd->abs_ts : NULL;
271 ws_get_user_comment(void *data, const frame_data *fd)
273 capture_file *cf = (capture_file *) data;
275 return cf_get_user_packet_comment(cf, fd);
279 ws_epan_new(capture_file *cf)
281 epan_t *epan = epan_new();
284 epan->get_frame_ts = ws_get_frame_ts;
285 epan->get_interface_name = cap_file_get_interface_name;
286 epan->get_user_comment = ws_get_user_comment;
292 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
297 wth = wtap_open_offline(fname, type, err, &err_info, TRUE);
301 /* The open succeeded. Close whatever capture file we had open,
302 and fill in the information for this file. */
305 /* Initialize the packet header. */
306 wtap_phdr_init(&cf->phdr);
308 /* XXX - we really want to initialize this after we've read all
309 the packets, so we know how much we'll ultimately need. */
310 ws_buffer_init(&cf->buf, 1500);
312 /* Create new epan session for dissection.
313 * (The old one was freed in cf_close().)
315 cf->epan = ws_epan_new(cf);
317 /* We're about to start reading the file. */
318 cf->state = FILE_READ_IN_PROGRESS;
323 /* Set the file name because we need it to set the follow stream filter.
324 XXX - is that still true? We need it for other reasons, though,
326 cf->filename = g_strdup(fname);
328 /* Indicate whether it's a permanent or temporary file. */
329 cf->is_tempfile = is_tempfile;
331 /* No user changes yet. */
332 cf->unsaved_changes = FALSE;
334 cf->computed_elapsed = 0;
336 cf->cd_t = wtap_file_type_subtype(cf->wth);
337 cf->open_type = type;
338 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
340 cf->packet_comment_count = 0;
341 cf->displayed_count = 0;
342 cf->marked_count = 0;
343 cf->ignored_count = 0;
344 cf->ref_time_count = 0;
345 cf->drops_known = FALSE;
347 cf->snap = wtap_snapshot_length(cf->wth);
349 /* Snapshot length not known. */
350 cf->has_snap = FALSE;
351 cf->snap = WTAP_MAX_PACKET_SIZE;
355 /* Allocate a frame_data_sequence for the frames in this file */
356 cf->frames = new_frame_data_sequence();
358 nstime_set_zero(&cf->elapsed_time);
364 packet_list_queue_draw();
365 cf_callback_invoke(cf_cb_file_opened, cf);
367 if (cf->cd_t == WTAP_FILE_TYPE_SUBTYPE_BER) {
368 /* tell the BER dissector the file name */
369 ber_set_filename(cf->filename);
372 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
373 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
378 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
383 * Add an encapsulation type to cf->linktypes.
386 cf_add_encapsulation_type(capture_file *cf, int encap)
390 for (i = 0; i < cf->linktypes->len; i++) {
391 if (g_array_index(cf->linktypes, gint, i) == encap)
392 return; /* it's already there */
394 /* It's not already there - add it. */
395 g_array_append_val(cf->linktypes, encap);
398 /* Reset everything to a pristine state */
400 cf_close(capture_file *cf)
402 cf->stop_flag = FALSE;
403 if (cf->state == FILE_CLOSED)
404 return; /* Nothing to do */
406 /* Die if we're in the middle of reading a file. */
407 g_assert(cf->state != FILE_READ_IN_PROGRESS);
409 cf_callback_invoke(cf_cb_file_closing, cf);
411 /* close things, if not already closed before */
412 color_filters_cleanup();
418 /* We have no file open... */
419 if (cf->filename != NULL) {
420 /* If it's a temporary file, remove it. */
422 ws_unlink(cf->filename);
423 g_free(cf->filename);
426 /* ...which means we have no changes to that file to save. */
427 cf->unsaved_changes = FALSE;
429 /* no open_routine type */
430 cf->open_type = WTAP_TYPE_AUTO;
432 /* Clean up the packet header. */
433 wtap_phdr_cleanup(&cf->phdr);
435 /* Free up the packet buffer. */
436 ws_buffer_free(&cf->buf);
438 dfilter_free(cf->rfcode);
440 if (cf->frames != NULL) {
441 free_frame_data_sequence(cf->frames);
444 #ifdef WANT_PACKET_EDITOR
445 if (cf->edited_frames) {
446 g_tree_destroy(cf->edited_frames);
447 cf->edited_frames = NULL;
450 if (cf->frames_user_comments) {
451 g_tree_destroy(cf->frames_user_comments);
452 cf->frames_user_comments = NULL;
454 cf_unselect_packet(cf); /* nothing to select */
455 cf->first_displayed = 0;
456 cf->last_displayed = 0;
458 /* No frames, no frame selected, no field in that frame selected. */
460 cf->current_frame = 0;
462 cf->finfo_selected = NULL;
464 /* No frame link-layer types, either. */
465 if (cf->linktypes != NULL) {
466 g_array_free(cf->linktypes, TRUE);
467 cf->linktypes = NULL;
470 /* Clear the packet list. */
471 packet_list_freeze();
476 nstime_set_zero(&cf->elapsed_time);
478 reset_tap_listeners();
483 /* We have no file open. */
484 cf->state = FILE_CLOSED;
486 cf_callback_invoke(cf_cb_file_closed, cf);
490 * TRUE if the progress dialog doesn't exist and it looks like we'll
491 * take > 2s to load, FALSE otherwise.
493 static inline gboolean
494 progress_is_slow(progdlg_t *progdlg, GTimer *prog_timer, gint64 size, gint64 pos)
498 if (progdlg) return FALSE;
499 elapsed = g_timer_elapsed(prog_timer, NULL);
500 if ((elapsed / 2 > PROGBAR_SHOW_DELAY && (size / pos) > 2) /* It looks like we're going to be slow. */
501 || elapsed > PROGBAR_SHOW_DELAY) { /* We are indeed slow. */
508 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
512 progbar_val = (gfloat) file_pos / (gfloat) size;
513 if (progbar_val > 1.0) {
515 /* The file probably grew while we were reading it.
516 * Update file size, and try again.
518 size = wtap_file_size(cf->wth, NULL);
521 progbar_val = (gfloat) file_pos / (gfloat) size;
523 /* If it's still > 1, either "wtap_file_size()" failed (in which
524 * case there's not much we can do about it), or the file
525 * *shrank* (in which case there's not much we can do about
526 * it); just clip the progress value at 1.0.
528 if (progbar_val > 1.0f)
532 g_snprintf(status_str, status_size,
533 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
534 file_pos / 1024, size / 1024);
540 cf_read(capture_file *cf, gboolean reloading)
543 gchar *err_info = NULL;
545 progdlg_t *volatile progbar = NULL;
546 GTimer *prog_timer = g_timer_new();
550 volatile gboolean create_proto_tree;
554 /* Compile the current display filter.
555 * We assume this will not fail since cf->dfilter is only set in
556 * cf_filter IFF the filter was valid.
558 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
559 g_assert(!cf->dfilter || (compiled && dfcode));
561 /* Get the union of the flags for all tap listeners. */
562 tap_flags = union_of_tap_listener_flags();
564 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
566 reset_tap_listeners();
568 name_ptr = g_filename_display_basename(cf->filename);
571 cf_callback_invoke(cf_cb_file_reload_started, cf);
573 cf_callback_invoke(cf_cb_file_read_started, cf);
575 /* Record whether the file is compressed.
576 XXX - do we know this at open time? */
577 cf->iscompressed = wtap_iscompressed(cf->wth);
579 /* The packet list window will be empty until the file is completly loaded */
580 packet_list_freeze();
582 cf->stop_flag = FALSE;
583 g_get_current_time(&start_time);
585 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
595 gchar status_str[100];
599 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
601 /* Find the size of the file. */
602 size = wtap_file_size(cf->wth, NULL);
604 g_timer_start(prog_timer);
606 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
609 file_pos = wtap_read_so_far(cf->wth);
611 /* Create the progress bar if necessary. */
612 if (progress_is_slow(progbar, prog_timer, size, file_pos)) {
613 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
615 progbar = delayed_create_progress_dlg(cf->window, "Reloading", name_ptr,
616 TRUE, &cf->stop_flag, &start_time, progbar_val);
618 progbar = delayed_create_progress_dlg(cf->window, "Loading", name_ptr,
619 TRUE, &cf->stop_flag, &start_time, progbar_val);
623 * Update the progress bar, but do it only after
624 * PROGBAR_UPDATE_INTERVAL has elapsed. Calling update_progress_dlg
625 * and packets_bar_update will likely trigger UI paint events, which
626 * might take a while depending on the platform and display. Reset
627 * our timer *after* painting.
629 if (progbar && g_timer_elapsed(prog_timer, NULL) > PROGBAR_UPDATE_INTERVAL) {
630 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
631 /* update the packet bar content on the first run or frequently on very large files */
632 update_progress_dlg(progbar, progbar_val, status_str);
633 packets_bar_update();
634 g_timer_start(prog_timer);
639 /* Well, the user decided to abort the read. He/She will be warned and
640 it might be enough for him/her to work with the already loaded
642 This is especially true for very large capture files, where you don't
643 want to wait loading the whole file (which may last minutes or even
644 hours even on fast machines) just to see that it was the wrong file. */
647 read_packet(cf, dfcode, &edt, cinfo, data_offset);
650 CATCH(OutOfMemoryError) {
651 simple_message_box(ESD_TYPE_ERROR, NULL,
652 "More information and workarounds can be found at\n"
653 "https://wiki.wireshark.org/KnownBugs/OutOfMemory",
654 "Sorry, but Wireshark has run out of memory and has to terminate now.");
656 /* Could we close the current capture and free up memory from that? */
658 /* we have to terminate, as we cannot recover from the memory error */
664 /* Free the display name */
667 /* Cleanup and release all dfilter resources */
668 if (dfcode != NULL) {
669 dfilter_free(dfcode);
672 epan_dissect_cleanup(&edt);
674 /* We're done reading the file; destroy the progress bar if it was created. */
676 destroy_progress_dlg(progbar);
677 g_timer_destroy(prog_timer);
679 /* We're done reading sequentially through the file. */
680 cf->state = FILE_READ_DONE;
682 /* Close the sequential I/O side, to free up memory it requires. */
683 wtap_sequential_close(cf->wth);
685 /* Allow the protocol dissectors to free up memory that they
686 * don't need after the sequential run-through of the packets. */
687 postseq_cleanup_all_protocols();
689 /* compute the time it took to load the file */
690 compute_elapsed(cf, &start_time);
692 /* Set the file encapsulation type now; we don't know what it is until
693 we've looked at all the packets, as we don't know until then whether
694 there's more than one type (and thus whether it's
695 WTAP_ENCAP_PER_PACKET). */
696 cf->lnk_t = wtap_file_encap(cf->wth);
698 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
703 cf_callback_invoke(cf_cb_file_reload_finished, cf);
705 cf_callback_invoke(cf_cb_file_read_finished, cf);
707 /* If we have any displayed packets to select, select the first of those
708 packets by making the first row the selected row. */
709 if (cf->first_displayed != 0) {
710 packet_list_select_first_row();
714 simple_message_box(ESD_TYPE_WARN, NULL,
715 "The remaining packets in the file were discarded.\n"
717 "As a lot of packets from the original file will be missing,\n"
718 "remember to be careful when saving the current content to a file.\n",
719 "File loading was cancelled.");
720 return CF_READ_ERROR;
724 /* Put up a message box noting that the read failed somewhere along
725 the line. Don't throw out the stuff we managed to read, though,
729 case WTAP_ERR_UNSUPPORTED:
730 simple_error_message_box(
731 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
732 err_info != NULL ? err_info : "no information supplied");
736 case WTAP_ERR_SHORT_READ:
737 simple_error_message_box(
738 "The capture file appears to have been cut short"
739 " in the middle of a packet.");
742 case WTAP_ERR_BAD_FILE:
743 simple_error_message_box(
744 "The capture file appears to be damaged or corrupt.\n(%s)",
745 err_info != NULL ? err_info : "no information supplied");
749 case WTAP_ERR_DECOMPRESS:
750 simple_error_message_box(
751 "The compressed capture file appears to be damaged or corrupt.\n(%s)",
752 err_info != NULL ? err_info : "no information supplied");
757 simple_error_message_box(
758 "An error occurred while reading the"
759 " capture file: %s.", wtap_strerror(err));
762 return CF_READ_ERROR;
769 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
772 volatile int newly_displayed_packets = 0;
775 gboolean create_proto_tree;
779 /* Compile the current display filter.
780 * We assume this will not fail since cf->dfilter is only set in
781 * cf_filter IFF the filter was valid.
783 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
784 g_assert(!cf->dfilter || (compiled && dfcode));
786 /* Get the union of the flags for all tap listeners. */
787 tap_flags = union_of_tap_listener_flags();
789 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
793 packet_list_check_end();
794 /* Don't freeze/thaw the list when doing live capture */
795 /*packet_list_freeze();*/
797 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
799 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
802 gint64 data_offset = 0;
805 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
807 while (to_read != 0) {
808 wtap_cleareof(cf->wth);
809 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
812 if (cf->state == FILE_READ_ABORTED) {
813 /* Well, the user decided to exit Wireshark. Break out of the
814 loop, and let the code below (which is called even if there
815 aren't any packets left to read) exit. */
818 if (read_packet(cf, dfcode, &edt, (column_info *) cinfo, data_offset) != -1) {
819 newly_displayed_packets++;
824 CATCH(OutOfMemoryError) {
825 simple_message_box(ESD_TYPE_ERROR, NULL,
826 "More information and workarounds can be found at\n"
827 "https://wiki.wireshark.org/KnownBugs/OutOfMemory",
828 "Sorry, but Wireshark has run out of memory and has to terminate now.");
830 /* Could we close the current capture and free up memory from that? */
831 return CF_READ_ABORTED;
833 /* we have to terminate, as we cannot recover from the memory error */
839 /* Update the file encapsulation; it might have changed based on the
840 packets we've read. */
841 cf->lnk_t = wtap_file_encap(cf->wth);
843 /* Cleanup and release all dfilter resources */
844 if (dfcode != NULL) {
845 dfilter_free(dfcode);
848 epan_dissect_cleanup(&edt);
850 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
851 cf->count, cf->state, *err);*/
853 /* Don't freeze/thaw the list when doing live capture */
854 /*packet_list_thaw();*/
855 /* With the new packet list the first packet
856 * isn't automatically selected.
858 if (!cf->current_frame)
859 packet_list_select_first_row();
861 /* moving to the end of the packet list - if the user requested so and
862 we have some new packets. */
863 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
864 packet_list_moveto_end();
866 if (cf->state == FILE_READ_ABORTED) {
867 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
868 so that our caller can kill off the capture child process;
869 this will cause an EOF on the pipe from the child, so
870 "cf_finish_tail()" will be called, and it will clean up
872 return CF_READ_ABORTED;
873 } else if (*err != 0) {
874 /* We got an error reading the capture file.
875 XXX - pop up a dialog box instead? */
876 if (err_info != NULL) {
877 g_warning("Error \"%s\" while reading \"%s\" (\"%s\")",
878 wtap_strerror(*err), cf->filename, err_info);
881 g_warning("Error \"%s\" while reading \"%s\"",
882 wtap_strerror(*err), cf->filename);
884 return CF_READ_ERROR;
890 cf_fake_continue_tail(capture_file *cf) {
891 cf->state = FILE_READ_DONE;
895 cf_finish_tail(capture_file *cf, int *err)
902 gboolean create_proto_tree;
906 /* Compile the current display filter.
907 * We assume this will not fail since cf->dfilter is only set in
908 * cf_filter IFF the filter was valid.
910 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
911 g_assert(!cf->dfilter || (compiled && dfcode));
913 /* Get the union of the flags for all tap listeners. */
914 tap_flags = union_of_tap_listener_flags();
915 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
917 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
919 if (cf->wth == NULL) {
921 return CF_READ_ERROR;
924 packet_list_check_end();
925 /* Don't freeze/thaw the list when doing live capture */
926 /*packet_list_freeze();*/
928 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
930 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
931 if (cf->state == FILE_READ_ABORTED) {
932 /* Well, the user decided to abort the read. Break out of the
933 loop, and let the code below (which is called even if there
934 aren't any packets left to read) exit. */
937 read_packet(cf, dfcode, &edt, cinfo, data_offset);
940 /* Cleanup and release all dfilter resources */
941 if (dfcode != NULL) {
942 dfilter_free(dfcode);
945 epan_dissect_cleanup(&edt);
947 /* Don't freeze/thaw the list when doing live capture */
948 /*packet_list_thaw();*/
950 if (cf->state == FILE_READ_ABORTED) {
951 /* Well, the user decided to abort the read. We're only called
952 when the child capture process closes the pipe to us (meaning
953 it's probably exited), so we can just close the capture
954 file; we return CF_READ_ABORTED so our caller can do whatever
955 is appropriate when that happens. */
957 return CF_READ_ABORTED;
960 if (auto_scroll_live && cf->count != 0)
961 packet_list_moveto_end();
963 /* We're done reading sequentially through the file. */
964 cf->state = FILE_READ_DONE;
966 /* We're done reading sequentially through the file; close the
967 sequential I/O side, to free up memory it requires. */
968 wtap_sequential_close(cf->wth);
970 /* Allow the protocol dissectors to free up memory that they
971 * don't need after the sequential run-through of the packets. */
972 postseq_cleanup_all_protocols();
974 /* Update the file encapsulation; it might have changed based on the
975 packets we've read. */
976 cf->lnk_t = wtap_file_encap(cf->wth);
978 /* Update the details in the file-set dialog, as the capture file
979 * has likely grown since we first stat-ed it */
980 fileset_update_file(cf->filename);
983 /* We got an error reading the capture file.
984 XXX - pop up a dialog box? */
985 if (err_info != NULL) {
986 g_warning("Error \"%s\" while reading \"%s\" (\"%s\")",
987 wtap_strerror(*err), cf->filename, err_info);
990 g_warning("Error \"%s\" while reading \"%s\"",
991 wtap_strerror(*err), cf->filename);
993 return CF_READ_ERROR;
998 #endif /* HAVE_LIBPCAP */
1001 cf_get_display_name(capture_file *cf)
1005 /* Return a name to use in displays */
1006 if (!cf->is_tempfile) {
1007 /* Get the last component of the file name, and use that. */
1009 displayname = g_filename_display_basename(cf->filename);
1011 displayname=g_strdup("(No file)");
1014 /* The file we read is a temporary file from a live capture or
1015 a merge operation; we don't mention its name, but, if it's
1016 from a capture, give the source of the capture. */
1018 displayname = g_strdup(cf->source);
1020 displayname = g_strdup("(Untitled)");
1026 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1032 cf->source = g_strdup(source);
1034 cf->source = g_strdup("");
1038 const gchar *cf_get_tempfile_source(capture_file *cf) {
1046 /* XXX - use a macro instead? */
1048 cf_get_packet_count(capture_file *cf)
1053 /* XXX - use a macro instead? */
1055 cf_is_tempfile(capture_file *cf)
1057 return cf->is_tempfile;
1060 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1062 cf->is_tempfile = is_tempfile;
1066 /* XXX - use a macro instead? */
1067 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1069 cf->drops_known = drops_known;
1072 /* XXX - use a macro instead? */
1073 void cf_set_drops(capture_file *cf, guint32 drops)
1078 /* XXX - use a macro instead? */
1079 gboolean cf_get_drops_known(capture_file *cf)
1081 return cf->drops_known;
1084 /* XXX - use a macro instead? */
1085 guint32 cf_get_drops(capture_file *cf)
1090 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1092 cf->rfcode = rfcode;
1096 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1097 epan_dissect_t *edt, dfilter_t *dfcode, column_info *cinfo,
1098 struct wtap_pkthdr *phdr, const guint8 *buf, gboolean add_to_packet_list)
1102 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1103 &cf->ref, cf->prev_dis);
1104 cf->prev_cap = fdata;
1106 if (dfcode != NULL) {
1107 epan_dissect_prime_dfilter(edt, dfcode);
1110 /* Prepare coloring rules, this ensures that display filter rules containing
1111 * frame.color_rule references are still processed.
1112 * TODO: actually detect that situation or maybe apply other optimizations? */
1113 if (edt->tree && color_filters_used()) {
1114 color_filters_prime_edt(edt);
1115 fdata->flags.need_colorize = 1;
1119 /* Dissect the frame. */
1120 epan_dissect_run_with_taps(edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, buf), fdata, cinfo);
1122 /* If we don't have a display filter, set "passed_dfilter" to 1. */
1123 if (dfcode != NULL) {
1124 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, edt) ? 1 : 0;
1126 if (fdata->flags.passed_dfilter) {
1127 /* This frame passed the display filter but it may depend on other
1128 * (potentially not displayed) frames. Find those frames and mark them
1131 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1134 fdata->flags.passed_dfilter = 1;
1136 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1137 cf->displayed_count++;
1139 if (add_to_packet_list) {
1140 /* We fill the needed columns from new_packet_list */
1141 row = packet_list_append(cinfo, fdata);
1144 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1146 frame_data_set_after_dissect(fdata, &cf->cum_bytes);
1147 cf->prev_dis = fdata;
1149 /* If we haven't yet seen the first frame, this is it.
1151 XXX - we must do this before we add the row to the display,
1152 as, if the display's GtkCList's selection mode is
1153 GTK_SELECTION_BROWSE, when the first entry is added to it,
1154 "cf_select_packet()" will be called, and it will fetch the row
1155 data for the 0th row, and will get a null pointer rather than
1156 "fdata", as "gtk_clist_append()" won't yet have returned and
1157 thus "gtk_clist_set_row_data()" won't yet have been called.
1159 We thus need to leave behind bread crumbs so that
1160 "cf_select_packet()" can find this frame. See the comment
1161 in "cf_select_packet()". */
1162 if (cf->first_displayed == 0)
1163 cf->first_displayed = fdata->num;
1165 /* This is the last frame we've seen so far. */
1166 cf->last_displayed = fdata->num;
1169 epan_dissect_reset(edt);
1173 /* read in a new packet */
1174 /* returns the row of the new packet in the packet list or -1 if not displayed */
1176 read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
1177 column_info *cinfo, gint64 offset)
1179 struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1180 const guint8 *buf = wtap_buf_ptr(cf->wth);
1187 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
1188 it's not already there.
1189 XXX - yes, this is O(N), so if every packet had a different
1190 link-layer encapsulation type, it'd be O(N^2) to read the file, but
1191 there are probably going to be a small number of encapsulation types
1193 cf_add_encapsulation_type(cf, phdr->pkt_encap);
1195 /* The frame number of this packet is one more than the count of
1196 frames in the file so far. */
1197 framenum = cf->count + 1;
1199 frame_data_init(&fdlocal, framenum, phdr, offset, cf->cum_bytes);
1203 epan_dissect_t rf_edt;
1205 epan_dissect_init(&rf_edt, cf->epan, TRUE, FALSE);
1206 epan_dissect_prime_dfilter(&rf_edt, cf->rfcode);
1207 epan_dissect_run(&rf_edt, cf->cd_t, phdr, frame_tvbuff_new(&fdlocal, buf), &fdlocal, NULL);
1208 passed = dfilter_apply_edt(cf->rfcode, &rf_edt);
1209 epan_dissect_cleanup(&rf_edt);
1213 /* This does a shallow copy of fdlocal, which is good enough. */
1214 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1217 if (phdr->opt_comment != NULL)
1218 cf->packet_comment_count++;
1219 cf->f_datalen = offset + fdlocal.cap_len;
1221 if (!cf->redissecting) {
1222 row = add_packet_to_packet_list(fdata, cf, edt, dfcode,
1223 cinfo, phdr, buf, TRUE);
1231 typedef struct _callback_data_t {
1233 GTimeVal start_time;
1241 merge_callback(merge_event event, int num _U_,
1242 const merge_in_file_t in_files[], const guint in_file_count,
1246 callback_data_t *cb_data = (callback_data_t*) data;
1248 g_assert(cb_data != NULL);
1252 case MERGE_EVENT_INPUT_FILES_OPENED:
1256 case MERGE_EVENT_FRAME_TYPE_SELECTED:
1260 case MERGE_EVENT_READY_TO_MERGE:
1261 /* Get the sum of the sizes of all the files. */
1262 for (i = 0; i < in_file_count; i++)
1263 cb_data->f_len += in_files[i].size;
1265 cb_data->prog_timer = g_timer_new();
1266 g_timer_start(cb_data->prog_timer);
1268 g_get_current_time(&cb_data->start_time);
1271 case MERGE_EVENT_PACKET_WAS_READ:
1273 gint64 data_offset = 0;
1275 /* Get the sum of the data offsets in all of the files. */
1277 for (i = 0; i < in_file_count; i++)
1278 data_offset += in_files[i].data_offset;
1280 /* Create the progress bar if necessary.
1281 We check on every iteration of the loop, so that it takes no
1282 longer than the standard time to create it (otherwise, for a
1283 large file, we might take considerably longer than that standard
1284 time in order to get to the next progress bar step). */
1285 if (cb_data->progbar == NULL) {
1286 cb_data->progbar = delayed_create_progress_dlg(NULL, "Merging", "files",
1287 FALSE, &cb_data->stop_flag, &cb_data->start_time, 0.0f);
1291 * Update the progress bar, but do it only after
1292 * PROGBAR_UPDATE_INTERVAL has elapsed. Calling update_progress_dlg
1293 * and packets_bar_update will likely trigger UI paint events, which
1294 * might take a while depending on the platform and display. Reset
1295 * our timer *after* painting.
1297 if (g_timer_elapsed(cb_data->prog_timer, NULL) > PROGBAR_UPDATE_INTERVAL) {
1299 gint64 file_pos = 0;
1300 /* Get the sum of the seek positions in all of the files. */
1301 for (i = 0; i < in_file_count; i++)
1302 file_pos += wtap_read_so_far(in_files[i].wth);
1304 progbar_val = (gfloat) file_pos / (gfloat) cb_data->f_len;
1305 if (progbar_val > 1.0f) {
1306 /* Some file probably grew while we were reading it.
1307 That "shouldn't happen", so we'll just clip the progress
1312 if (cb_data->progbar != NULL) {
1313 gchar status_str[100];
1314 g_snprintf(status_str, sizeof(status_str),
1315 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1316 file_pos / 1024, cb_data->f_len / 1024);
1317 update_progress_dlg(cb_data->progbar, progbar_val, status_str);
1319 g_timer_start(cb_data->prog_timer);
1324 case MERGE_EVENT_DONE:
1325 /* We're done merging the files; destroy the progress bar if it was created. */
1326 if (cb_data->progbar != NULL)
1327 destroy_progress_dlg(cb_data->progbar);
1328 g_timer_destroy(cb_data->prog_timer);
1332 return cb_data->stop_flag;
1338 cf_merge_files(char **out_filenamep, int in_file_count,
1339 char *const *in_filenames, int file_type, gboolean do_append)
1345 gchar *err_info = NULL;
1347 merge_result status;
1348 merge_progress_callback_t cb;
1351 if (*out_filenamep != NULL) {
1352 out_filename = *out_filenamep;
1353 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1357 out_fd = create_tempfile(&tmpname, "wireshark", NULL);
1360 out_filename = g_strdup(tmpname);
1361 *out_filenamep = out_filename;
1364 cf_open_failure_alert_box(out_filename, err, NULL, TRUE, file_type);
1368 /* prepare our callback routine */
1369 cb.callback_func = merge_callback;
1370 cb.data = g_malloc0(sizeof(callback_data_t));
1372 /* merge the files */
1373 status = merge_files(out_fd, out_filename, file_type,
1374 (const char *const *) in_filenames, in_file_count,
1375 do_append, IDB_MERGE_MODE_ALL_SAME, 0 /* snaplen */,
1376 "Wireshark", &cb, &err, &err_info, &err_fileno);
1384 case MERGE_USER_ABORTED:
1385 /* this isn't really an error, though we will return CF_ERROR later */
1388 case MERGE_ERR_CANT_OPEN_INFILE:
1389 cf_open_failure_alert_box(in_filenames[err_fileno], err, err_info,
1394 case MERGE_ERR_CANT_OPEN_OUTFILE:
1395 cf_open_failure_alert_box(out_filename, err, err_info, TRUE,
1400 case MERGE_ERR_CANT_READ_INFILE: /* fall through */
1401 case MERGE_ERR_BAD_PHDR_INTERFACE_ID:
1402 case MERGE_ERR_CANT_WRITE_OUTFILE:
1403 case MERGE_ERR_CANT_CLOSE_OUTFILE:
1405 simple_error_message_box("%s", err_info ? err_info : "unknown error");
1410 /* for general case, no need to close out_fd: file handle associated to this file
1411 descriptor was already closed by the call to wtap_dump_close() in merge_files() */
1413 if (status != MERGE_OK) {
1414 /* Callers aren't expected to treat an error or an explicit abort
1415 differently - we put up error dialogs ourselves, so they don't
1423 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1425 const char *filter_new = dftext ? dftext : "";
1426 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1429 GTimeVal start_time;
1431 /* if new filter equals old one, do nothing unless told to do so */
1432 if (!force && strcmp(filter_new, filter_old) == 0) {
1438 if (dftext == NULL) {
1439 /* The new filter is an empty filter (i.e., display all packets).
1440 * so leave dfcode==NULL
1444 * We have a filter; make a copy of it (as we'll be saving it),
1445 * and try to compile it.
1447 dftext = g_strdup(dftext);
1448 if (!dfilter_compile(dftext, &dfcode, &err_msg)) {
1449 /* The attempt failed; report an error. */
1450 simple_message_box(ESD_TYPE_ERROR, NULL,
1451 "See the help for a description of the display filter syntax.",
1452 "\"%s\" isn't a valid display filter: %s",
1460 if (dfcode == NULL) {
1461 /* Yes - free the filter text, and set it to null. */
1467 /* We have a valid filter. Replace the current filter. */
1468 g_free(cf->dfilter);
1469 cf->dfilter = dftext;
1470 g_get_current_time(&start_time);
1473 /* Now rescan the packet list, applying the new filter, but not
1474 throwing away information constructed on a previous pass. */
1475 if (cf->state != FILE_CLOSED) {
1476 if (dftext == NULL) {
1477 rescan_packets(cf, "Resetting", "Filter", FALSE);
1479 rescan_packets(cf, "Filtering", dftext, FALSE);
1483 /* Cleanup and release all dfilter resources */
1484 dfilter_free(dfcode);
1490 cf_reftime_packets(capture_file *cf)
1492 ref_time_packets(cf);
1496 cf_redissect_packets(capture_file *cf)
1498 if (cf->state != FILE_CLOSED) {
1499 rescan_packets(cf, "Reprocessing", "all packets", TRUE);
1504 cf_read_record_r(capture_file *cf, const frame_data *fdata,
1505 struct wtap_pkthdr *phdr, Buffer *buf)
1509 gchar *display_basename;
1511 #ifdef WANT_PACKET_EDITOR
1512 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1513 if (G_UNLIKELY(fdata->file_off == -1)) {
1514 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1517 simple_error_message_box("fdata->file_off == -1, but can't find modified frame.");
1521 *phdr = frame->phdr;
1522 ws_buffer_assure_space(buf, frame->phdr.caplen);
1523 memcpy(ws_buffer_start_ptr(buf), frame->pd, frame->phdr.caplen);
1528 if (!wtap_seek_read(cf->wth, fdata->file_off, phdr, buf, &err, &err_info)) {
1529 display_basename = g_filename_display_basename(cf->filename);
1532 case WTAP_ERR_BAD_FILE:
1533 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1534 display_basename, wtap_strerror(err),
1535 err_info != NULL ? err_info : "no information supplied");
1540 simple_error_message_box(
1541 "An error occurred while reading from the file \"%s\": %s.",
1542 display_basename, wtap_strerror(err));
1545 g_free(display_basename);
1552 cf_read_record(capture_file *cf, frame_data *fdata)
1554 return cf_read_record_r(cf, fdata, &cf->phdr, &cf->buf);
1557 /* Rescan the list of packets, reconstructing the CList.
1559 "action" describes why we're doing this; it's used in the progress
1562 "action_item" describes what we're doing; it's used in the progress
1565 "redissect" is TRUE if we need to make the dissectors reconstruct
1566 any state information they have (because a preference that affects
1567 some dissector has changed, meaning some dissector might construct
1568 its state differently from the way it was constructed the last time). */
1570 rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect)
1572 /* Rescan packets new packet list */
1575 progdlg_t *progbar = NULL;
1576 GTimer *prog_timer = g_timer_new();
1578 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1579 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1580 gboolean selected_frame_seen;
1582 GTimeVal start_time;
1583 gchar status_str[100];
1587 gboolean create_proto_tree;
1589 gboolean add_to_packet_list = FALSE;
1591 guint32 frames_count;
1593 /* Compile the current display filter.
1594 * We assume this will not fail since cf->dfilter is only set in
1595 * cf_filter IFF the filter was valid.
1597 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
1598 g_assert(!cf->dfilter || (compiled && dfcode));
1600 /* Get the union of the flags for all tap listeners. */
1601 tap_flags = union_of_tap_listener_flags();
1602 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1604 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
1606 reset_tap_listeners();
1607 /* Which frame, if any, is the currently selected frame?
1608 XXX - should the selected frame or the focus frame be the "current"
1609 frame, that frame being the one from which "Find Frame" searches
1611 selected_frame = cf->current_frame;
1613 /* Mark frame num as not found */
1614 selected_frame_num = -1;
1616 /* Freeze the packet list while we redo it, so we don't get any
1617 screen updates while it happens. */
1618 packet_list_freeze();
1621 /* We need to re-initialize all the state information that protocols
1622 keep, because some preference that controls a dissector has changed,
1623 which might cause the state information to be constructed differently
1624 by that dissector. */
1626 /* We might receive new packets while redissecting, and we don't
1627 want to dissect those before their time. */
1628 cf->redissecting = TRUE;
1630 /* 'reset' dissection session */
1631 epan_free(cf->epan);
1632 if (cf->edt && cf->edt->pi.fd) {
1633 /* All pointers in "per frame proto data" for the currently selected
1634 packet are allocated in wmem_file_scope() and deallocated in epan_free().
1635 Free them here to avoid unintended usage in packet_list_clear(). */
1636 frame_data_destroy(cf->edt->pi.fd);
1638 cf->epan = ws_epan_new(cf);
1639 cf->cinfo.epan = cf->epan;
1641 /* A new Lua tap listener may be registered in lua_prime_all_fields()
1642 called via epan_new() / init_dissection() when reloading Lua plugins. */
1643 if (!create_proto_tree && have_filtering_tap_listeners()) {
1644 create_proto_tree = TRUE;
1647 /* We need to redissect the packets so we have to discard our old
1648 * packet list store. */
1649 packet_list_clear();
1650 add_to_packet_list = TRUE;
1653 /* We don't yet know which will be the first and last frames displayed. */
1654 cf->first_displayed = 0;
1655 cf->last_displayed = 0;
1657 /* We currently don't display any packets */
1658 cf->displayed_count = 0;
1660 /* Iterate through the list of frames. Call a routine for each frame
1661 to check whether it should be displayed and, if so, add it to
1662 the display list. */
1664 cf->prev_dis = NULL;
1665 cf->prev_cap = NULL;
1668 cf_callback_invoke(cf_cb_file_rescan_started, cf);
1670 g_timer_start(prog_timer);
1671 /* Count of packets at which we've looked. */
1673 /* Progress so far. */
1676 cf->stop_flag = FALSE;
1677 g_get_current_time(&start_time);
1679 /* no previous row yet */
1680 prev_frame_num = -1;
1683 preceding_frame_num = -1;
1684 preceding_frame = NULL;
1685 following_frame_num = -1;
1686 following_frame = NULL;
1688 selected_frame_seen = FALSE;
1690 frames_count = cf->count;
1692 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
1694 for (framenum = 1; framenum <= frames_count; framenum++) {
1695 fdata = frame_data_sequence_find(cf->frames, framenum);
1697 /* Create the progress bar if necessary.
1698 We check on every iteration of the loop, so that it takes no
1699 longer than the standard time to create it (otherwise, for a
1700 large file, we might take considerably longer than that standard
1701 time in order to get to the next progress bar step). */
1702 if (progbar == NULL)
1703 progbar = delayed_create_progress_dlg(cf->window, action, action_item, TRUE,
1709 * Update the progress bar, but do it only after PROGBAR_UPDATE_INTERVAL
1710 * has elapsed. Calling update_progress_dlg and packets_bar_update will
1711 * likely trigger UI paint events, which might take a while depending on
1712 * the platform and display. Reset our timer *after* painting.
1714 if (g_timer_elapsed(prog_timer, NULL) > PROGBAR_UPDATE_INTERVAL) {
1715 /* let's not divide by zero. I should never be started
1716 * with count == 0, so let's assert that
1718 g_assert(cf->count > 0);
1719 progbar_val = (gfloat) count / frames_count;
1721 if (progbar != NULL) {
1722 g_snprintf(status_str, sizeof(status_str),
1723 "%4u of %u frames", count, frames_count);
1724 update_progress_dlg(progbar, progbar_val, status_str);
1727 g_timer_start(prog_timer);
1730 if (cf->stop_flag) {
1731 /* Well, the user decided to abort the filtering. Just stop.
1733 XXX - go back to the previous filter? Users probably just
1734 want not to wait for a filtering operation to finish;
1735 unless we cancel by having no filter, reverting to the
1736 previous filter will probably be even more expensive than
1737 continuing the filtering, as it involves going back to the
1738 beginning and filtering, and even with no filter we currently
1739 have to re-generate the entire clist, which is also expensive.
1741 I'm not sure what Network Monitor does, but it doesn't appear
1742 to give you an unfiltered display if you cancel. */
1749 /* Since all state for the frame was destroyed, mark the frame
1750 * as not visited, free the GSList referring to the state
1751 * data (the per-frame data itself was freed by
1752 * "init_dissection()"), and null out the GSList pointer. */
1753 frame_data_reset(fdata);
1754 frames_count = cf->count;
1757 /* Frame dependencies from the previous dissection/filtering are no longer valid. */
1758 fdata->flags.dependent_of_displayed = 0;
1760 if (!cf_read_record(cf, fdata))
1761 break; /* error reading the frame */
1763 /* If the previous frame is displayed, and we haven't yet seen the
1764 selected frame, remember that frame - it's the closest one we've
1765 yet seen before the selected frame. */
1766 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1767 preceding_frame_num = prev_frame_num;
1768 preceding_frame = prev_frame;
1771 add_packet_to_packet_list(fdata, cf, &edt, dfcode,
1773 ws_buffer_start_ptr(&cf->buf),
1774 add_to_packet_list);
1776 /* If this frame is displayed, and this is the first frame we've
1777 seen displayed after the selected frame, remember this frame -
1778 it's the closest one we've yet seen at or after the selected
1780 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1781 following_frame_num = fdata->num;
1782 following_frame = fdata;
1784 if (fdata == selected_frame) {
1785 selected_frame_seen = TRUE;
1786 if (fdata->flags.passed_dfilter)
1787 selected_frame_num = fdata->num;
1790 /* Remember this frame - it'll be the previous frame
1791 on the next pass through the loop. */
1792 prev_frame_num = fdata->num;
1796 epan_dissect_cleanup(&edt);
1798 /* We are done redissecting the packet list. */
1799 cf->redissecting = FALSE;
1802 frames_count = cf->count;
1803 /* Clear out what remains of the visited flags and per-frame data
1806 XXX - that may cause various forms of bogosity when dissecting
1807 these frames, as they won't have been seen by this sequential
1808 pass, but the only alternative I see is to keep scanning them
1809 even though the user requested that the scan stop, and that
1810 would leave the user stuck with an Wireshark grinding on
1811 until it finishes. Should we just stick them with that? */
1812 for (; framenum <= frames_count; framenum++) {
1813 fdata = frame_data_sequence_find(cf->frames, framenum);
1814 frame_data_reset(fdata);
1818 /* We're done filtering the packets; destroy the progress bar if it
1820 if (progbar != NULL)
1821 destroy_progress_dlg(progbar);
1822 g_timer_destroy(prog_timer);
1824 /* Unfreeze the packet list. */
1825 if (!add_to_packet_list)
1826 packet_list_recreate_visible_rows();
1828 /* Compute the time it took to filter the file */
1829 compute_elapsed(cf, &start_time);
1833 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
1835 if (selected_frame_num == -1) {
1836 /* The selected frame didn't pass the filter. */
1837 if (selected_frame == NULL) {
1838 /* That's because there *was* no selected frame. Make the first
1839 displayed frame the current frame. */
1840 selected_frame_num = 0;
1842 /* Find the nearest displayed frame to the selected frame (whether
1843 it's before or after that frame) and make that the current frame.
1844 If the next and previous displayed frames are equidistant from the
1845 selected frame, choose the next one. */
1846 g_assert(following_frame == NULL ||
1847 following_frame->num >= selected_frame->num);
1848 g_assert(preceding_frame == NULL ||
1849 preceding_frame->num <= selected_frame->num);
1850 if (following_frame == NULL) {
1851 /* No frame after the selected frame passed the filter, so we
1852 have to select the last displayed frame before the selected
1854 selected_frame_num = preceding_frame_num;
1855 selected_frame = preceding_frame;
1856 } else if (preceding_frame == NULL) {
1857 /* No frame before the selected frame passed the filter, so we
1858 have to select the first displayed frame after the selected
1860 selected_frame_num = following_frame_num;
1861 selected_frame = following_frame;
1863 /* Frames before and after the selected frame passed the filter, so
1864 we'll select the previous frame */
1865 selected_frame_num = preceding_frame_num;
1866 selected_frame = preceding_frame;
1871 if (selected_frame_num == -1) {
1872 /* There are no frames displayed at all. */
1873 cf_unselect_packet(cf);
1875 /* Either the frame that was selected passed the filter, or we've
1876 found the nearest displayed frame to that frame. Select it, make
1877 it the focus row, and make it visible. */
1878 /* Set to invalid to force update of packet list and packet details */
1879 cf->current_row = -1;
1880 if (selected_frame_num == 0) {
1881 packet_list_select_first_row();
1883 if (!packet_list_select_row_from_data(selected_frame)) {
1884 /* We didn't find a row corresponding to this frame.
1885 This means that the frame isn't being displayed currently,
1886 so we can't select it. */
1887 simple_message_box(ESD_TYPE_INFO, NULL,
1888 "The capture file is probably not fully dissected.",
1889 "End of capture exceeded.");
1894 /* Cleanup and release all dfilter resources */
1895 dfilter_free(dfcode);
1900 * Scan through all frame data and recalculate the ref time
1901 * without rereading the file.
1902 * XXX - do we need a progres bar or is this fast enough?
1905 ref_time_packets(capture_file *cf)
1912 cf->prev_dis = NULL;
1915 for (framenum = 1; framenum <= cf->count; framenum++) {
1916 fdata = frame_data_sequence_find(cf->frames, framenum);
1918 /* just add some value here until we know if it is being displayed or not */
1919 fdata->cum_bytes = cf->cum_bytes + fdata->pkt_len;
1925 /* If we don't have the time stamp of the first packet in the
1926 capture, it's because this is the first packet. Save the time
1927 stamp of this packet as the time stamp of the first packet. */
1928 if (cf->ref == NULL)
1930 /* if this frames is marked as a reference time frame, reset
1931 firstsec and firstusec to this frame */
1932 if (fdata->flags.ref_time)
1935 /* If we don't have the time stamp of the previous displayed packet,
1936 it's because this is the first displayed packet. Save the time
1937 stamp of this packet as the time stamp of the previous displayed
1939 if (cf->prev_dis == NULL) {
1940 cf->prev_dis = fdata;
1943 /* Get the time elapsed between the first packet and this packet. */
1944 fdata->frame_ref_num = (fdata != cf->ref) ? cf->ref->num : 0;
1945 nstime_delta(&rel_ts, &fdata->abs_ts, &cf->ref->abs_ts);
1947 /* If it's greater than the current elapsed time, set the elapsed time
1948 to it (we check for "greater than" so as not to be confused by
1949 time moving backwards). */
1950 if ((gint32)cf->elapsed_time.secs < rel_ts.secs
1951 || ((gint32)cf->elapsed_time.secs == rel_ts.secs && (gint32)cf->elapsed_time.nsecs < rel_ts.nsecs)) {
1952 cf->elapsed_time = rel_ts;
1955 /* If this frame is displayed, get the time elapsed between the
1956 previous displayed packet and this packet. */
1957 if ( fdata->flags.passed_dfilter ) {
1958 fdata->prev_dis_num = cf->prev_dis->num;
1959 cf->prev_dis = fdata;
1965 if ( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ) {
1966 /* This frame either passed the display filter list or is marked as
1967 a time reference frame. All time reference frames are displayed
1968 even if they don't pass the display filter */
1969 if (fdata->flags.ref_time) {
1970 /* if this was a TIME REF frame we should reset the cum_bytes field */
1971 cf->cum_bytes = fdata->pkt_len;
1972 fdata->cum_bytes = cf->cum_bytes;
1974 /* increase cum_bytes with this packets length */
1975 cf->cum_bytes += fdata->pkt_len;
1988 process_specified_records(capture_file *cf, packet_range_t *range,
1989 const char *string1, const char *string2, gboolean terminate_is_stop,
1990 gboolean (*callback)(capture_file *, frame_data *,
1991 struct wtap_pkthdr *, const guint8 *, void *),
1992 void *callback_args,
1993 gboolean show_progress_bar)
1998 psp_return_t ret = PSP_FINISHED;
2000 progdlg_t *progbar = NULL;
2001 GTimer *prog_timer = g_timer_new();
2004 GTimeVal progbar_start_time;
2005 gchar progbar_status_str[100];
2006 range_process_e process_this;
2007 struct wtap_pkthdr phdr;
2009 wtap_phdr_init(&phdr);
2010 ws_buffer_init(&buf, 1500);
2012 g_timer_start(prog_timer);
2013 /* Count of packets at which we've looked. */
2015 /* Progress so far. */
2018 cf->stop_flag = FALSE;
2019 g_get_current_time(&progbar_start_time);
2022 packet_range_process_init(range);
2024 /* Iterate through all the packets, printing the packets that
2025 were selected by the current display filter. */
2026 for (framenum = 1; framenum <= cf->count; framenum++) {
2027 fdata = frame_data_sequence_find(cf->frames, framenum);
2029 /* Create the progress bar if necessary.
2030 We check on every iteration of the loop, so that it takes no
2031 longer than the standard time to create it (otherwise, for a
2032 large file, we might take considerably longer than that standard
2033 time in order to get to the next progress bar step). */
2034 if (show_progress_bar && progbar == NULL)
2035 progbar = delayed_create_progress_dlg(cf->window, string1, string2,
2038 &progbar_start_time,
2042 * Update the progress bar, but do it only after PROGBAR_UPDATE_INTERVAL
2043 * has elapsed. Calling update_progress_dlg and packets_bar_update will
2044 * likely trigger UI paint events, which might take a while depending on
2045 * the platform and display. Reset our timer *after* painting.
2047 if (progbar && g_timer_elapsed(prog_timer, NULL) > PROGBAR_UPDATE_INTERVAL) {
2048 /* let's not divide by zero. I should never be started
2049 * with count == 0, so let's assert that
2051 g_assert(cf->count > 0);
2052 progbar_val = (gfloat) progbar_count / cf->count;
2054 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2055 "%4u of %u packets", progbar_count, cf->count);
2056 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2058 g_timer_start(prog_timer);
2061 if (cf->stop_flag) {
2062 /* Well, the user decided to abort the operation. Just stop,
2063 and arrange to return PSP_STOPPED to our caller, so they know
2064 it was stopped explicitly. */
2071 if (range != NULL) {
2072 /* do we have to process this packet? */
2073 process_this = packet_range_process_packet(range, fdata);
2074 if (process_this == range_process_next) {
2075 /* this packet uninteresting, continue with next one */
2077 } else if (process_this == range_processing_finished) {
2078 /* all interesting packets processed, stop the loop */
2083 /* Get the packet */
2084 if (!cf_read_record_r(cf, fdata, &phdr, &buf)) {
2085 /* Attempt to get the packet failed. */
2089 /* Process the packet */
2090 if (!callback(cf, fdata, &phdr, ws_buffer_start_ptr(&buf), callback_args)) {
2091 /* Callback failed. We assume it reported the error appropriately. */
2097 /* We're done printing the packets; destroy the progress bar if
2099 if (progbar != NULL)
2100 destroy_progress_dlg(progbar);
2101 g_timer_destroy(prog_timer);
2103 wtap_phdr_cleanup(&phdr);
2104 ws_buffer_free(&buf);
2112 } retap_callback_args_t;
2115 retap_packet(capture_file *cf, frame_data *fdata,
2116 struct wtap_pkthdr *phdr, const guint8 *pd,
2119 retap_callback_args_t *args = (retap_callback_args_t *)argsp;
2121 epan_dissect_run_with_taps(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, args->cinfo);
2122 epan_dissect_reset(&args->edt);
2128 cf_retap_packets(capture_file *cf)
2130 packet_range_t range;
2131 retap_callback_args_t callback_args;
2132 gboolean construct_protocol_tree;
2133 gboolean filtering_tap_listeners;
2137 /* Presumably the user closed the capture file. */
2139 return CF_READ_ABORTED;
2142 cf_callback_invoke(cf_cb_file_retap_started, cf);
2144 /* Do we have any tap listeners with filters? */
2145 filtering_tap_listeners = have_filtering_tap_listeners();
2147 tap_flags = union_of_tap_listener_flags();
2149 /* If any tap listeners have filters, or require the protocol tree,
2150 construct the protocol tree. */
2151 construct_protocol_tree = filtering_tap_listeners ||
2152 (tap_flags & TL_REQUIRES_PROTO_TREE);
2154 /* If any tap listeners require the columns, construct them. */
2155 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2157 /* Reset the tap listeners. */
2158 reset_tap_listeners();
2160 epan_dissect_init(&callback_args.edt, cf->epan, construct_protocol_tree, FALSE);
2162 /* Iterate through the list of packets, dissecting all packets and
2163 re-running the taps. */
2164 packet_range_init(&range, cf);
2165 packet_range_process_init(&range);
2167 ret = process_specified_records(cf, &range, "Recalculating statistics on",
2168 "all packets", TRUE, retap_packet,
2169 &callback_args, TRUE);
2171 epan_dissect_cleanup(&callback_args.edt);
2173 cf_callback_invoke(cf_cb_file_retap_finished, cf);
2177 /* Completed successfully. */
2181 /* Well, the user decided to abort the refiltering.
2182 Return CF_READ_ABORTED so our caller knows they did that. */
2183 return CF_READ_ABORTED;
2186 /* Error while retapping. */
2187 return CF_READ_ERROR;
2190 g_assert_not_reached();
2195 print_args_t *print_args;
2196 gboolean print_header_line;
2197 char *header_line_buf;
2198 int header_line_buf_len;
2199 gboolean print_formfeed;
2200 gboolean print_separator;
2204 int num_visible_cols;
2207 } print_callback_args_t;
2210 print_packet(capture_file *cf, frame_data *fdata,
2211 struct wtap_pkthdr *phdr, const guint8 *pd,
2214 print_callback_args_t *args = (print_callback_args_t *)argsp;
2220 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2221 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2222 col_item_t* col_item;
2224 /* Fill in the column information if we're printing the summary
2226 if (args->print_args->print_summary) {
2227 col_custom_prime_edt(&args->edt, &cf->cinfo);
2228 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2229 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2231 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2233 if (args->print_formfeed) {
2234 if (!new_page(args->print_args->stream))
2237 if (args->print_separator) {
2238 if (!print_line(args->print_args->stream, 0, ""))
2244 * We generate bookmarks, if the output format supports them.
2245 * The name is "__frameN__".
2247 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2249 if (args->print_args->print_summary) {
2250 if (!args->print_args->print_col_headings)
2251 args->print_header_line = FALSE;
2252 if (args->print_header_line) {
2253 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2255 args->print_header_line = FALSE; /* we might not need to print any more */
2257 cp = &args->line_buf[0];
2259 for (i = 0; i < args->num_visible_cols; i++) {
2260 col_item = &cf->cinfo.columns[args->visible_cols[i]];
2261 /* Find the length of the string for this column. */
2262 column_len = (int) strlen(col_item->col_data);
2263 if (args->col_widths[i] > column_len)
2264 column_len = args->col_widths[i];
2266 /* Make sure there's room in the line buffer for the column; if not,
2267 double its length. */
2268 line_len += column_len + 1; /* "+1" for space */
2269 if (line_len > args->line_buf_len) {
2270 cp_off = (int) (cp - args->line_buf);
2271 args->line_buf_len = 2 * line_len;
2272 args->line_buf = (char *)g_realloc(args->line_buf, args->line_buf_len + 1);
2273 cp = args->line_buf + cp_off;
2276 /* Right-justify the packet number column. */
2277 if (col_item->col_fmt == COL_NUMBER)
2278 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], col_item->col_data);
2280 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], col_item->col_data);
2282 if (i != args->num_visible_cols - 1)
2288 * Generate a bookmark, using the summary line as the title.
2290 if (!print_bookmark(args->print_args->stream, bookmark_name,
2294 if (!print_line(args->print_args->stream, 0, args->line_buf))
2298 * Generate a bookmark, using "Frame N" as the title, as we're not
2299 * printing the summary line.
2301 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2302 if (!print_bookmark(args->print_args->stream, bookmark_name,
2305 } /* if (print_summary) */
2307 if (args->print_args->print_dissections != print_dissections_none) {
2308 if (args->print_args->print_summary) {
2309 /* Separate the summary line from the tree with a blank line. */
2310 if (!print_line(args->print_args->stream, 0, ""))
2314 /* Print the information in that tree. */
2315 if (!proto_tree_print(args->print_args, &args->edt, NULL, args->print_args->stream))
2318 /* Print a blank line if we print anything after this (aka more than one packet). */
2319 args->print_separator = TRUE;
2321 /* Print a header line if we print any more packet summaries */
2322 if (args->print_args->print_col_headings)
2323 args->print_header_line = TRUE;
2326 if (args->print_args->print_hex) {
2327 if (args->print_args->print_summary || (args->print_args->print_dissections != print_dissections_none)) {
2328 if (!print_line(args->print_args->stream, 0, ""))
2331 /* Print the full packet data as hex. */
2332 if (!print_hex_data(args->print_args->stream, &args->edt))
2335 /* Print a blank line if we print anything after this (aka more than one packet). */
2336 args->print_separator = TRUE;
2338 /* Print a header line if we print any more packet summaries */
2339 if (args->print_args->print_col_headings)
2340 args->print_header_line = TRUE;
2341 } /* if (args->print_args->print_dissections != print_dissections_none) */
2343 epan_dissect_reset(&args->edt);
2345 /* do we want to have a formfeed between each packet from now on? */
2346 if (args->print_args->print_formfeed) {
2347 args->print_formfeed = TRUE;
2353 epan_dissect_reset(&args->edt);
2358 cf_print_packets(capture_file *cf, print_args_t *print_args,
2359 gboolean show_progress_bar)
2361 print_callback_args_t callback_args;
2364 int i, cp_off, column_len, line_len;
2365 int num_visible_col = 0, last_visible_col = 0, visible_col_count;
2369 gboolean proto_tree_needed;
2371 callback_args.print_args = print_args;
2372 callback_args.print_header_line = print_args->print_col_headings;
2373 callback_args.header_line_buf = NULL;
2374 callback_args.header_line_buf_len = 256;
2375 callback_args.print_formfeed = FALSE;
2376 callback_args.print_separator = FALSE;
2377 callback_args.line_buf = NULL;
2378 callback_args.line_buf_len = 256;
2379 callback_args.col_widths = NULL;
2380 callback_args.num_visible_cols = 0;
2381 callback_args.visible_cols = NULL;
2383 if (!print_preamble(print_args->stream, cf->filename, get_ws_vcs_version_info())) {
2384 destroy_print_stream(print_args->stream);
2385 return CF_PRINT_WRITE_ERROR;
2388 if (print_args->print_summary) {
2389 /* We're printing packet summaries. Allocate the header line buffer
2390 and get the column widths. */
2391 callback_args.header_line_buf = (char *)g_malloc(callback_args.header_line_buf_len + 1);
2393 /* Find the number of visible columns and the last visible column */
2394 for (i = 0; i < prefs.num_cols; i++) {
2396 clp = g_list_nth(prefs.col_list, i);
2397 if (clp == NULL) /* Sanity check, Invalid column requested */
2400 cfmt = (fmt_data *) clp->data;
2401 if (cfmt->visible) {
2403 last_visible_col = i;
2407 /* Find the widths for each of the columns - maximum of the
2408 width of the title and the width of the data - and construct
2409 a buffer with a line containing the column titles. */
2410 callback_args.num_visible_cols = num_visible_col;
2411 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2412 callback_args.visible_cols = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2413 cp = &callback_args.header_line_buf[0];
2415 visible_col_count = 0;
2416 for (i = 0; i < cf->cinfo.num_cols; i++) {
2418 clp = g_list_nth(prefs.col_list, i);
2419 if (clp == NULL) /* Sanity check, Invalid column requested */
2422 cfmt = (fmt_data *) clp->data;
2423 if (cfmt->visible == FALSE)
2426 /* Save the order of visible columns */
2427 callback_args.visible_cols[visible_col_count] = i;
2429 /* Don't pad the last column. */
2430 if (i == last_visible_col)
2431 callback_args.col_widths[visible_col_count] = 0;
2433 callback_args.col_widths[visible_col_count] = (gint) strlen(cf->cinfo.columns[i].col_title);
2434 data_width = get_column_char_width(get_column_format(i));
2435 if (data_width > callback_args.col_widths[visible_col_count])
2436 callback_args.col_widths[visible_col_count] = data_width;
2439 /* Find the length of the string for this column. */
2440 column_len = (int) strlen(cf->cinfo.columns[i].col_title);
2441 if (callback_args.col_widths[i] > column_len)
2442 column_len = callback_args.col_widths[visible_col_count];
2444 /* Make sure there's room in the line buffer for the column; if not,
2445 double its length. */
2446 line_len += column_len + 1; /* "+1" for space */
2447 if (line_len > callback_args.header_line_buf_len) {
2448 cp_off = (int) (cp - callback_args.header_line_buf);
2449 callback_args.header_line_buf_len = 2 * line_len;
2450 callback_args.header_line_buf = (char *)g_realloc(callback_args.header_line_buf,
2451 callback_args.header_line_buf_len + 1);
2452 cp = callback_args.header_line_buf + cp_off;
2455 /* Right-justify the packet number column. */
2456 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2457 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.columns[i].col_title);
2459 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[visible_col_count], cf->cinfo.columns[i].col_title);
2461 if (i != cf->cinfo.num_cols - 1)
2464 visible_col_count++;
2468 /* Now start out the main line buffer with the same length as the
2469 header line buffer. */
2470 callback_args.line_buf_len = callback_args.header_line_buf_len;
2471 callback_args.line_buf = (char *)g_malloc(callback_args.line_buf_len + 1);
2472 } /* if (print_summary) */
2474 /* Create the protocol tree, and make it visible, if we're printing
2475 the dissection or the hex data.
2476 XXX - do we need it if we're just printing the hex data? */
2478 callback_args.print_args->print_dissections != print_dissections_none ||
2479 callback_args.print_args->print_hex ||
2480 have_custom_cols(&cf->cinfo) || have_field_extractors();
2481 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2483 /* Iterate through the list of packets, printing the packets we were
2485 ret = process_specified_records(cf, &print_args->range, "Printing",
2486 "selected packets", TRUE, print_packet,
2487 &callback_args, show_progress_bar);
2488 epan_dissect_cleanup(&callback_args.edt);
2489 g_free(callback_args.header_line_buf);
2490 g_free(callback_args.line_buf);
2491 g_free(callback_args.col_widths);
2492 g_free(callback_args.visible_cols);
2497 /* Completed successfully. */
2501 /* Well, the user decided to abort the printing.
2503 XXX - note that what got generated before they did that
2504 will get printed if we're piping to a print program; we'd
2505 have to write to a file and then hand that to the print
2506 program to make it actually not print anything. */
2510 /* Error while printing.
2512 XXX - note that what got generated before they did that
2513 will get printed if we're piping to a print program; we'd
2514 have to write to a file and then hand that to the print
2515 program to make it actually not print anything. */
2516 destroy_print_stream(print_args->stream);
2517 return CF_PRINT_WRITE_ERROR;
2520 if (!print_finale(print_args->stream)) {
2521 destroy_print_stream(print_args->stream);
2522 return CF_PRINT_WRITE_ERROR;
2525 if (!destroy_print_stream(print_args->stream))
2526 return CF_PRINT_WRITE_ERROR;
2534 print_args_t *print_args;
2535 } write_packet_callback_args_t;
2538 write_pdml_packet(capture_file *cf, frame_data *fdata,
2539 struct wtap_pkthdr *phdr, const guint8 *pd,
2542 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2544 /* Create the protocol tree, but don't fill in the column information. */
2545 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2547 /* Write out the information in that tree. */
2548 write_pdml_proto_tree(NULL, NULL, &args->edt, args->fh);
2550 epan_dissect_reset(&args->edt);
2552 return !ferror(args->fh);
2556 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2558 write_packet_callback_args_t callback_args;
2562 fh = ws_fopen(print_args->file, "w");
2564 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2566 write_pdml_preamble(fh, cf->filename);
2569 return CF_PRINT_WRITE_ERROR;
2572 callback_args.fh = fh;
2573 callback_args.print_args = print_args;
2574 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2576 /* Iterate through the list of packets, printing the packets we were
2578 ret = process_specified_records(cf, &print_args->range, "Writing PDML",
2579 "selected packets", TRUE,
2580 write_pdml_packet, &callback_args, TRUE);
2582 epan_dissect_cleanup(&callback_args.edt);
2587 /* Completed successfully. */
2591 /* Well, the user decided to abort the printing. */
2595 /* Error while printing. */
2597 return CF_PRINT_WRITE_ERROR;
2600 write_pdml_finale(fh);
2603 return CF_PRINT_WRITE_ERROR;
2606 /* XXX - check for an error */
2613 write_psml_packet(capture_file *cf, frame_data *fdata,
2614 struct wtap_pkthdr *phdr, const guint8 *pd,
2617 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2619 /* Fill in the column information */
2620 col_custom_prime_edt(&args->edt, &cf->cinfo);
2621 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2622 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2624 /* Write out the column information. */
2625 write_psml_columns(&args->edt, args->fh);
2627 epan_dissect_reset(&args->edt);
2629 return !ferror(args->fh);
2633 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2635 write_packet_callback_args_t callback_args;
2639 gboolean proto_tree_needed;
2641 fh = ws_fopen(print_args->file, "w");
2643 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2645 write_psml_preamble(&cf->cinfo, fh);
2648 return CF_PRINT_WRITE_ERROR;
2651 callback_args.fh = fh;
2652 callback_args.print_args = print_args;
2654 /* Fill in the column information, only create the protocol tree
2655 if having custom columns or field extractors. */
2656 proto_tree_needed = have_custom_cols(&cf->cinfo) || have_field_extractors();
2657 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2659 /* Iterate through the list of packets, printing the packets we were
2661 ret = process_specified_records(cf, &print_args->range, "Writing PSML",
2662 "selected packets", TRUE,
2663 write_psml_packet, &callback_args, TRUE);
2665 epan_dissect_cleanup(&callback_args.edt);
2670 /* Completed successfully. */
2674 /* Well, the user decided to abort the printing. */
2678 /* Error while printing. */
2680 return CF_PRINT_WRITE_ERROR;
2683 write_psml_finale(fh);
2686 return CF_PRINT_WRITE_ERROR;
2689 /* XXX - check for an error */
2696 write_csv_packet(capture_file *cf, frame_data *fdata,
2697 struct wtap_pkthdr *phdr, const guint8 *pd,
2700 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2702 /* Fill in the column information */
2703 col_custom_prime_edt(&args->edt, &cf->cinfo);
2704 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2705 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2707 /* Write out the column information. */
2708 write_csv_columns(&args->edt, args->fh);
2710 epan_dissect_reset(&args->edt);
2712 return !ferror(args->fh);
2716 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2718 write_packet_callback_args_t callback_args;
2719 gboolean proto_tree_needed;
2723 fh = ws_fopen(print_args->file, "w");
2725 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2727 write_csv_column_titles(&cf->cinfo, fh);
2730 return CF_PRINT_WRITE_ERROR;
2733 callback_args.fh = fh;
2734 callback_args.print_args = print_args;
2736 /* only create the protocol tree if having custom columns or field extractors. */
2737 proto_tree_needed = have_custom_cols(&cf->cinfo) || have_field_extractors();
2738 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2740 /* Iterate through the list of packets, printing the packets we were
2742 ret = process_specified_records(cf, &print_args->range, "Writing CSV",
2743 "selected packets", TRUE,
2744 write_csv_packet, &callback_args, TRUE);
2746 epan_dissect_cleanup(&callback_args.edt);
2751 /* Completed successfully. */
2755 /* Well, the user decided to abort the printing. */
2759 /* Error while printing. */
2761 return CF_PRINT_WRITE_ERROR;
2764 /* XXX - check for an error */
2771 carrays_write_packet(capture_file *cf, frame_data *fdata,
2772 struct wtap_pkthdr *phdr,
2773 const guint8 *pd, void *argsp)
2775 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2777 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2778 write_carrays_hex_data(fdata->num, args->fh, &args->edt);
2779 epan_dissect_reset(&args->edt);
2781 return !ferror(args->fh);
2785 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2787 write_packet_callback_args_t callback_args;
2791 fh = ws_fopen(print_args->file, "w");
2794 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2798 return CF_PRINT_WRITE_ERROR;
2801 callback_args.fh = fh;
2802 callback_args.print_args = print_args;
2803 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2805 /* Iterate through the list of packets, printing the packets we were
2807 ret = process_specified_records(cf, &print_args->range,
2809 "selected packets", TRUE,
2810 carrays_write_packet, &callback_args, TRUE);
2812 epan_dissect_cleanup(&callback_args.edt);
2816 /* Completed successfully. */
2819 /* Well, the user decided to abort the printing. */
2822 /* Error while printing. */
2824 return CF_PRINT_WRITE_ERROR;
2832 write_json_packet(capture_file *cf, frame_data *fdata,
2833 struct wtap_pkthdr *phdr, const guint8 *pd,
2836 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2838 /* Create the protocol tree, but don't fill in the column information. */
2839 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2841 /* Write out the information in that tree. */
2842 write_json_proto_tree(NULL, args->print_args, NULL, &args->edt, args->fh);
2844 epan_dissect_reset(&args->edt);
2846 return !ferror(args->fh);
2850 cf_write_json_packets(capture_file *cf, print_args_t *print_args)
2852 write_packet_callback_args_t callback_args;
2856 fh = ws_fopen(print_args->file, "w");
2858 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2860 write_json_preamble(fh);
2863 return CF_PRINT_WRITE_ERROR;
2866 callback_args.fh = fh;
2867 callback_args.print_args = print_args;
2868 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2870 /* Iterate through the list of packets, printing the packets we were
2872 ret = process_specified_records(cf, &print_args->range, "Writing PDML",
2873 "selected packets", TRUE,
2874 write_json_packet, &callback_args, TRUE);
2876 epan_dissect_cleanup(&callback_args.edt);
2881 /* Completed successfully. */
2885 /* Well, the user decided to abort the printing. */
2889 /* Error while printing. */
2891 return CF_PRINT_WRITE_ERROR;
2894 write_json_finale(fh);
2897 return CF_PRINT_WRITE_ERROR;
2900 /* XXX - check for an error */
2907 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
2908 search_direction dir)
2912 mdata.string = string;
2913 mdata.string_len = strlen(string);
2914 return find_packet(cf, match_protocol_tree, &mdata, dir);
2918 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
2920 mdata->frame_matched = FALSE;
2921 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
2922 mdata->string_len = strlen(mdata->string);
2924 /* Iterate through all the nodes looking for matching text */
2925 proto_tree_children_foreach(tree, match_subtree_text, mdata);
2926 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2930 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2932 match_data *mdata = (match_data *)criterion;
2935 /* Load the frame's data. */
2936 if (!cf_read_record(cf, fdata)) {
2937 /* Attempt to get the packet failed. */
2941 /* Construct the protocol tree, including the displayed text */
2942 epan_dissect_init(&edt, cf->epan, TRUE, TRUE);
2943 /* We don't need the column information */
2944 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
2946 /* Iterate through all the nodes, seeing if they have text that matches. */
2948 mdata->frame_matched = FALSE;
2949 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
2950 epan_dissect_cleanup(&edt);
2951 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
2955 match_subtree_text(proto_node *node, gpointer data)
2957 match_data *mdata = (match_data *) data;
2958 const gchar *string = mdata->string;
2959 size_t string_len = mdata->string_len;
2960 capture_file *cf = mdata->cf;
2961 field_info *fi = PNODE_FINFO(node);
2962 gchar label_str[ITEM_LABEL_LENGTH];
2969 /* dissection with an invisible proto tree? */
2972 if (mdata->frame_matched) {
2973 /* We already had a match; don't bother doing any more work. */
2977 /* Don't match invisible entries. */
2978 if (PROTO_ITEM_IS_HIDDEN(node))
2981 /* was a free format label produced? */
2983 label_ptr = fi->rep->representation;
2985 /* no, make a generic label */
2986 label_ptr = label_str;
2987 proto_item_fill_label(fi, label_str);
2991 if (g_regex_match(cf->regex, label_ptr, (GRegexMatchFlags) 0, NULL)) {
2992 mdata->frame_matched = TRUE;
2997 /* Does that label match? */
2998 label_len = strlen(label_ptr);
2999 for (i = 0; i < label_len; i++) {
3000 c_char = label_ptr[i];
3002 c_char = g_ascii_toupper(c_char);
3003 if (c_char == string[c_match]) {
3005 if (c_match == string_len) {
3006 /* No need to look further; we have a match */
3007 mdata->frame_matched = TRUE;
3016 /* Recurse into the subtree, if it exists */
3017 if (node->first_child != NULL)
3018 proto_tree_children_foreach(node, match_subtree_text, mdata);
3022 cf_find_packet_summary_line(capture_file *cf, const char *string,
3023 search_direction dir)
3027 mdata.string = string;
3028 mdata.string_len = strlen(string);
3029 return find_packet(cf, match_summary_line, &mdata, dir);
3033 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3035 match_data *mdata = (match_data *)criterion;
3036 const gchar *string = mdata->string;
3037 size_t string_len = mdata->string_len;
3039 const char *info_column;
3040 size_t info_column_len;
3041 match_result result = MR_NOTMATCHED;
3047 /* Load the frame's data. */
3048 if (!cf_read_record(cf, fdata)) {
3049 /* Attempt to get the packet failed. */
3053 /* Don't bother constructing the protocol tree */
3054 epan_dissect_init(&edt, cf->epan, FALSE, FALSE);
3055 /* Get the column information */
3056 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata,
3059 /* Find the Info column */
3060 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3061 if (cf->cinfo.columns[colx].fmt_matx[COL_INFO]) {
3062 /* Found it. See if we match. */
3063 info_column = edt.pi.cinfo->columns[colx].col_data;
3064 info_column_len = strlen(info_column);
3066 if (g_regex_match(cf->regex, info_column, (GRegexMatchFlags) 0, NULL)) {
3067 result = MR_MATCHED;
3071 for (i = 0; i < info_column_len; i++) {
3072 c_char = info_column[i];
3074 c_char = g_ascii_toupper(c_char);
3075 if (c_char == string[c_match]) {
3077 if (c_match == string_len) {
3078 result = MR_MATCHED;
3088 epan_dissect_cleanup(&edt);
3095 } cbs_t; /* "Counted byte string" */
3099 * The current match_* routines only support ASCII case insensitivity and don't
3100 * convert UTF-8 inputs to UTF-16 for matching.
3102 * We could modify them to use the GLib Unicode routines or the International
3103 * Components for Unicode library but it's not apparent that we could do so
3104 * without consuming a lot more CPU and memory or that searching would be
3105 * significantly better.
3109 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
3110 search_direction dir)
3115 info.data_len = string_size;
3117 /* Regex, String or hex search? */
3119 /* Regular Expression search */
3120 return find_packet(cf, match_regex, NULL, dir);
3121 } else if (cf->string) {
3122 /* String search - what type of string? */
3123 switch (cf->scs_type) {
3125 case SCS_NARROW_AND_WIDE:
3126 return find_packet(cf, match_narrow_and_wide, &info, dir);
3129 return find_packet(cf, match_narrow, &info, dir);
3132 return find_packet(cf, match_wide, &info, dir);
3135 g_assert_not_reached();
3139 return find_packet(cf, match_binary, &info, dir);
3143 match_narrow_and_wide(capture_file *cf, frame_data *fdata, void *criterion)
3145 cbs_t *info = (cbs_t *)criterion;
3146 const guint8 *ascii_text = info->data;
3147 size_t textlen = info->data_len;
3148 match_result result;
3155 /* Load the frame's data. */
3156 if (!cf_read_record(cf, fdata)) {
3157 /* Attempt to get the packet failed. */
3161 result = MR_NOTMATCHED;
3162 buf_len = fdata->cap_len;
3163 pd = ws_buffer_start_ptr(&cf->buf);
3165 while (i < buf_len) {
3168 c_char = g_ascii_toupper(c_char);
3169 if (c_char != '\0') {
3170 if (c_char == ascii_text[c_match]) {
3172 if (c_match == textlen) {
3173 result = MR_MATCHED;
3174 cf->search_pos = i; /* Save the position of the last character
3175 for highlighting the field. */
3176 cf->search_len = (guint32)textlen;
3181 g_assert(i>=c_match);
3182 i -= (guint32)c_match;
3192 match_narrow(capture_file *cf, frame_data *fdata, void *criterion)
3195 cbs_t *info = (cbs_t *)criterion;
3196 const guint8 *ascii_text = info->data;
3197 size_t textlen = info->data_len;
3198 match_result result;
3204 /* Load the frame's data. */
3205 if (!cf_read_record(cf, fdata)) {
3206 /* Attempt to get the packet failed. */
3210 result = MR_NOTMATCHED;
3211 buf_len = fdata->cap_len;
3212 pd = ws_buffer_start_ptr(&cf->buf);
3214 while (i < buf_len) {
3217 c_char = g_ascii_toupper(c_char);
3218 if (c_char == ascii_text[c_match]) {
3220 if (c_match == textlen) {
3221 result = MR_MATCHED;
3222 cf->search_pos = i; /* Save the position of the last character
3223 for highlighting the field. */
3224 cf->search_len = (guint32)textlen;
3229 g_assert(i>=c_match);
3230 i -= (guint32)c_match;
3240 match_wide(capture_file *cf, frame_data *fdata, void *criterion)
3242 cbs_t *info = (cbs_t *)criterion;
3243 const guint8 *ascii_text = info->data;
3244 size_t textlen = info->data_len;
3245 match_result result;
3252 /* Load the frame's data. */
3253 if (!cf_read_record(cf, fdata)) {
3254 /* Attempt to get the packet failed. */
3258 result = MR_NOTMATCHED;
3259 buf_len = fdata->cap_len;
3260 pd = ws_buffer_start_ptr(&cf->buf);
3262 while (i < buf_len) {
3265 c_char = g_ascii_toupper(c_char);
3266 if (c_char == ascii_text[c_match]) {
3268 if (c_match == textlen) {
3269 result = MR_MATCHED;
3270 cf->search_pos = i; /* Save the position of the last character
3271 for highlighting the field. */
3272 cf->search_len = (guint32)textlen;
3278 g_assert(i>=(c_match*2));
3279 i -= (guint32)c_match*2;
3288 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3290 cbs_t *info = (cbs_t *)criterion;
3291 const guint8 *binary_data = info->data;
3292 size_t datalen = info->data_len;
3293 match_result result;
3299 /* Load the frame's data. */
3300 if (!cf_read_record(cf, fdata)) {
3301 /* Attempt to get the packet failed. */
3305 result = MR_NOTMATCHED;
3306 buf_len = fdata->cap_len;
3307 pd = ws_buffer_start_ptr(&cf->buf);
3309 while (i < buf_len) {
3310 if (pd[i] == binary_data[c_match]) {
3312 if (c_match == datalen) {
3313 result = MR_MATCHED;
3314 cf->search_pos = i; /* Save the position of the last character
3315 for highlighting the field. */
3316 cf->search_len = (guint32)datalen;
3321 g_assert(i>=c_match);
3322 i -= (guint32)c_match;
3331 match_regex(capture_file *cf, frame_data *fdata, void *criterion _U_)
3333 match_result result = MR_NOTMATCHED;
3334 GMatchInfo *match_info = NULL;
3336 /* Load the frame's data. */
3337 if (!cf_read_record(cf, fdata)) {
3338 /* Attempt to get the packet failed. */
3342 if (g_regex_match_full(cf->regex, (const gchar *)ws_buffer_start_ptr(&cf->buf), fdata->cap_len,
3343 0, (GRegexMatchFlags) 0, &match_info, NULL))
3345 gint start_pos = 0, end_pos = 0;
3346 g_match_info_fetch_pos (match_info, 0, &start_pos, &end_pos);
3347 cf->search_pos = end_pos - 1;
3348 cf->search_len = end_pos - start_pos;
3349 result = MR_MATCHED;
3355 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3356 search_direction dir)
3358 return find_packet(cf, match_dfilter, sfcode, dir);
3362 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3363 search_direction dir)
3368 if (!dfilter_compile(filter, &sfcode, NULL)) {
3370 * XXX - this shouldn't happen, as the filter string is machine
3375 if (sfcode == NULL) {
3377 * XXX - this shouldn't happen, as the filter string is machine
3382 result = find_packet(cf, match_dfilter, sfcode, dir);
3383 dfilter_free(sfcode);
3388 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3390 dfilter_t *sfcode = (dfilter_t *)criterion;
3392 match_result result;
3394 /* Load the frame's data. */
3395 if (!cf_read_record(cf, fdata)) {
3396 /* Attempt to get the packet failed. */
3400 epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
3401 epan_dissect_prime_dfilter(&edt, sfcode);
3402 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3403 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3404 epan_dissect_cleanup(&edt);
3409 cf_find_packet_marked(capture_file *cf, search_direction dir)
3411 return find_packet(cf, match_marked, NULL, dir);
3415 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3417 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3421 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3423 return find_packet(cf, match_time_reference, NULL, dir);
3427 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3429 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3433 find_packet(capture_file *cf,
3434 match_result (*match_function)(capture_file *, frame_data *, void *),
3435 void *criterion, search_direction dir)
3437 frame_data *start_fd;
3440 frame_data *new_fd = NULL;
3441 progdlg_t *progbar = NULL;
3442 GTimer *prog_timer = g_timer_new();
3446 GTimeVal start_time;
3447 gchar status_str[100];
3449 match_result result;
3451 start_fd = cf->current_frame;
3452 if (start_fd != NULL) {
3453 /* Iterate through the list of packets, starting at the packet we've
3454 picked, calling a routine to run the filter on the packet, see if
3455 it matches, and stop if so. */
3457 framenum = start_fd->num;
3459 g_timer_start(prog_timer);
3460 /* Progress so far. */
3463 cf->stop_flag = FALSE;
3464 g_get_current_time(&start_time);
3466 title = cf->sfilter?cf->sfilter:"";
3468 /* Create the progress bar if necessary.
3469 We check on every iteration of the loop, so that it takes no
3470 longer than the standard time to create it (otherwise, for a
3471 large file, we might take considerably longer than that standard
3472 time in order to get to the next progress bar step). */
3473 if (progbar == NULL)
3474 progbar = delayed_create_progress_dlg(cf->window, "Searching", title,
3475 FALSE, &cf->stop_flag, &start_time, progbar_val);
3478 * Update the progress bar, but do it only after PROGBAR_UPDATE_INTERVAL
3479 * has elapsed. Calling update_progress_dlg and packets_bar_update will
3480 * likely trigger UI paint events, which might take a while depending on
3481 * the platform and display. Reset our timer *after* painting.
3483 if (g_timer_elapsed(prog_timer, NULL) > PROGBAR_UPDATE_INTERVAL) {
3484 /* let's not divide by zero. I should never be started
3485 * with count == 0, so let's assert that
3487 g_assert(cf->count > 0);
3489 progbar_val = (gfloat) count / cf->count;
3491 g_snprintf(status_str, sizeof(status_str),
3492 "%4u of %u packets", count, cf->count);
3493 update_progress_dlg(progbar, progbar_val, status_str);
3495 g_timer_start(prog_timer);
3498 if (cf->stop_flag) {
3499 /* Well, the user decided to abort the search. Go back to the
3500 frame where we started. */
3505 /* Go past the current frame. */
3506 if (dir == SD_BACKWARD) {
3507 /* Go on to the previous frame. */
3508 if (framenum == 1) {
3510 * XXX - other apps have a bit more of a detailed message
3511 * for this, and instead of offering "OK" and "Cancel",
3512 * they offer things such as "Continue" and "Cancel";
3513 * we need an API for popping up alert boxes with
3514 * {Verb} and "Cancel".
3517 if (prefs.gui_find_wrap)
3519 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3520 framenum = cf->count; /* wrap around */
3524 statusbar_push_temporary_msg("Search reached the beginning.");
3525 framenum = start_fd->num; /* stay on previous packet */
3530 /* Go on to the next frame. */
3531 if (framenum == cf->count) {
3532 if (prefs.gui_find_wrap)
3534 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3535 framenum = 1; /* wrap around */
3539 statusbar_push_temporary_msg("Search reached the end.");
3540 framenum = start_fd->num; /* stay on previous packet */
3545 fdata = frame_data_sequence_find(cf->frames, framenum);
3549 /* Is this packet in the display? */
3550 if (fdata->flags.passed_dfilter) {
3551 /* Yes. Does it match the search criterion? */
3552 result = (*match_function)(cf, fdata, criterion);
3553 if (result == MR_ERROR) {
3554 /* Error; our caller has reported the error. Go back to the frame
3555 where we started. */
3558 } else if (result == MR_MATCHED) {
3559 /* Yes. Go to the new frame. */
3565 if (fdata == start_fd) {
3566 /* We're back to the frame we were on originally, and that frame
3567 doesn't match the search filter. The search failed. */
3572 /* We're done scanning the packets; destroy the progress bar if it
3574 if (progbar != NULL)
3575 destroy_progress_dlg(progbar);
3576 g_timer_destroy(prog_timer);
3579 if (new_fd != NULL) {
3580 /* Find and select */
3581 cf->search_in_progress = TRUE;
3582 found = packet_list_select_row_from_data(new_fd);
3583 cf->search_in_progress = FALSE;
3584 cf->search_pos = 0; /* Reset the position */
3585 cf->search_len = 0; /* Reset length */
3587 /* We didn't find a row corresponding to this frame.
3588 This means that the frame isn't being displayed currently,
3589 so we can't select it. */
3590 simple_message_box(ESD_TYPE_INFO, NULL,
3591 "The capture file is probably not fully dissected.",
3592 "End of capture exceeded.");
3595 return TRUE; /* success */
3597 return FALSE; /* failure */
3601 cf_goto_frame(capture_file *cf, guint fnumber)
3605 if (cf == NULL || cf->frames == NULL) {
3606 /* we don't have a loaded capture file - fix for bugs 11810 & 11989 */
3607 statusbar_push_temporary_msg("There is no file loaded");
3608 return FALSE; /* we failed to go to that packet */
3611 fdata = frame_data_sequence_find(cf->frames, fnumber);
3613 if (fdata == NULL) {
3614 /* we didn't find a packet with that packet number */
3615 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3616 return FALSE; /* we failed to go to that packet */
3618 if (!fdata->flags.passed_dfilter) {
3619 /* that packet currently isn't displayed */
3620 /* XXX - add it to the set of displayed packets? */
3621 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3622 return FALSE; /* we failed to go to that packet */
3625 if (!packet_list_select_row_from_data(fdata)) {
3626 /* We didn't find a row corresponding to this frame.
3627 This means that the frame isn't being displayed currently,
3628 so we can't select it. */
3629 simple_message_box(ESD_TYPE_INFO, NULL,
3630 "The capture file is probably not fully dissected.",
3631 "End of capture exceeded.");
3634 return TRUE; /* we got to that packet */
3638 cf_goto_top_frame(void)
3640 /* Find and select */
3641 packet_list_select_first_row();
3642 return TRUE; /* we got to that packet */
3646 cf_goto_bottom_frame(void)
3648 /* Find and select */
3649 packet_list_select_last_row();
3650 return TRUE; /* we got to that packet */
3654 * Go to frame specified by currently selected protocol tree item.
3657 cf_goto_framenum(capture_file *cf)
3659 header_field_info *hfinfo;
3662 if (cf->finfo_selected) {
3663 hfinfo = cf->finfo_selected->hfinfo;
3665 if (hfinfo->type == FT_FRAMENUM) {
3666 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3668 return cf_goto_frame(cf, framenum);
3675 /* Select the packet on a given row. */
3677 cf_select_packet(capture_file *cf, int row)
3679 epan_dissect_t *old_edt;
3682 /* Get the frame data struct pointer for this frame */
3683 fdata = packet_list_get_row_data(row);
3685 if (fdata == NULL) {
3686 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3687 the first entry is added to it by "real_insert_row()", that row
3688 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3689 our version and the vanilla GTK+ version).
3691 This means that a "select-row" signal is emitted; this causes
3692 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3695 "cf_select_packet()" fetches, above, the data associated with the
3696 row that was selected; however, as "gtk_clist_append()", which
3697 called "real_insert_row()", hasn't yet returned, we haven't yet
3698 associated any data with that row, so we get back a null pointer.
3700 We can't assume that there's only one frame in the frame list,
3701 either, as we may be filtering the display.
3703 We therefore assume that, if "row" is 0, i.e. the first row
3704 is being selected, and "cf->first_displayed" equals
3705 "cf->last_displayed", i.e. there's only one frame being
3706 displayed, that frame is the frame we want.
3708 This means we have to set "cf->first_displayed" and
3709 "cf->last_displayed" before adding the row to the
3710 GtkCList; see the comment in "add_packet_to_packet_list()". */
3712 if (row == 0 && cf->first_displayed == cf->last_displayed)
3713 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3716 /* If fdata _still_ isn't set simply give up. */
3717 if (fdata == NULL) {
3721 /* Get the data in that frame. */
3722 if (!cf_read_record (cf, fdata)) {
3726 /* Record that this frame is the current frame. */
3727 cf->current_frame = fdata;
3728 cf->current_row = row;
3731 /* Create the logical protocol tree. */
3732 /* We don't need the columns here. */
3733 cf->edt = epan_dissect_new(cf->epan, TRUE, TRUE);
3735 tap_build_interesting(cf->edt);
3736 epan_dissect_run(cf->edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(cf->current_frame, &cf->buf),
3737 cf->current_frame, NULL);
3739 dfilter_macro_build_ftv_cache(cf->edt->tree);
3741 cf_callback_invoke(cf_cb_packet_selected, cf);
3743 if (old_edt != NULL)
3744 epan_dissect_free(old_edt);
3748 /* Unselect the selected packet, if any. */
3750 cf_unselect_packet(capture_file *cf)
3752 epan_dissect_t *old_edt = cf->edt;
3756 /* No packet is selected. */
3757 cf->current_frame = NULL;
3758 cf->current_row = 0;
3760 cf_callback_invoke(cf_cb_packet_unselected, cf);
3762 /* No protocol tree means no selected field. */
3763 cf_unselect_field(cf);
3765 /* Destroy the epan_dissect_t for the unselected packet. */
3766 if (old_edt != NULL)
3767 epan_dissect_free(old_edt);
3770 /* Unset the selected protocol tree field, if any. */
3772 cf_unselect_field(capture_file *cf)
3774 cf->finfo_selected = NULL;
3776 cf_callback_invoke(cf_cb_field_unselected, cf);
3780 * Mark a particular frame.
3783 cf_mark_frame(capture_file *cf, frame_data *frame)
3785 if (! frame->flags.marked) {
3786 frame->flags.marked = TRUE;
3787 if (cf->count > cf->marked_count)
3793 * Unmark a particular frame.
3796 cf_unmark_frame(capture_file *cf, frame_data *frame)
3798 if (frame->flags.marked) {
3799 frame->flags.marked = FALSE;
3800 if (cf->marked_count > 0)
3806 * Ignore a particular frame.
3809 cf_ignore_frame(capture_file *cf, frame_data *frame)
3811 if (! frame->flags.ignored) {
3812 frame->flags.ignored = TRUE;
3813 if (cf->count > cf->ignored_count)
3814 cf->ignored_count++;
3819 * Un-ignore a particular frame.
3822 cf_unignore_frame(capture_file *cf, frame_data *frame)
3824 if (frame->flags.ignored) {
3825 frame->flags.ignored = FALSE;
3826 if (cf->ignored_count > 0)
3827 cf->ignored_count--;
3832 * Read the comment in SHB block
3836 cf_read_shb_comment(capture_file *cf)
3838 wtap_block_t shb_inf;
3842 /* XXX - support multiple SHBs */
3843 shb_inf = wtap_file_get_shb(cf->wth);
3845 /* Get the first comment from the SHB. */
3846 /* XXX - support multiple comments */
3847 if (wtap_block_get_nth_string_option_value(shb_inf, OPT_COMMENT, 0, &shb_comment) != WTAP_OPTTYPE_SUCCESS)
3853 cf_update_capture_comment(capture_file *cf, gchar *comment)
3855 wtap_block_t shb_inf;
3859 /* XXX - support multiple SHBs */
3860 shb_inf = wtap_file_get_shb(cf->wth);
3862 /* Get the first comment from the SHB. */
3863 /* XXX - support multiple comments */
3864 if (wtap_block_get_nth_string_option_value(shb_inf, OPT_COMMENT, 0, &shb_comment) != WTAP_OPTTYPE_SUCCESS) {
3865 /* There's no comment - add one. */
3866 wtap_block_add_string_option(shb_inf, OPT_COMMENT, comment, strlen(comment));
3868 /* See if the comment has changed or not */
3869 if (strcmp(shb_comment, comment) == 0) {
3874 /* The comment has changed, let's update it */
3875 wtap_block_set_nth_string_option_value(shb_inf, OPT_COMMENT, 0, comment, strlen(comment));
3877 /* Mark the file as having unsaved changes */
3878 cf->unsaved_changes = TRUE;
3882 cf_get_user_packet_comment(capture_file *cf, const frame_data *fd)
3884 if (cf->frames_user_comments)
3885 return (const char *)g_tree_lookup(cf->frames_user_comments, fd);
3892 cf_get_comment(capture_file *cf, const frame_data *fd)
3896 /* fetch user comment */
3897 if (fd->flags.has_user_comment)
3898 return g_strdup(cf_get_user_packet_comment(cf, fd));
3900 /* fetch phdr comment */
3901 if (fd->flags.has_phdr_comment) {
3902 struct wtap_pkthdr phdr; /* Packet header */
3903 Buffer buf; /* Packet data */
3905 wtap_phdr_init(&phdr);
3906 ws_buffer_init(&buf, 1500);
3908 if (!cf_read_record_r(cf, fd, &phdr, &buf))
3909 { /* XXX, what we can do here? */ }
3911 comment = phdr.opt_comment;
3912 wtap_phdr_cleanup(&phdr);
3913 ws_buffer_free(&buf);
3920 frame_cmp(gconstpointer a, gconstpointer b, gpointer user_data _U_)
3922 const frame_data *fdata1 = (const frame_data *) a;
3923 const frame_data *fdata2 = (const frame_data *) b;
3925 return (fdata1->num < fdata2->num) ? -1 :
3926 (fdata1->num > fdata2->num) ? 1 :
3931 cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment)
3933 char *pkt_comment = cf_get_comment(cf, fd);
3935 /* Check if the comment has changed */
3936 if (!g_strcmp0(pkt_comment, new_comment)) {
3937 g_free(pkt_comment);
3940 g_free(pkt_comment);
3943 cf->packet_comment_count--;
3946 cf->packet_comment_count++;
3948 fd->flags.has_user_comment = TRUE;
3950 if (!cf->frames_user_comments)
3951 cf->frames_user_comments = g_tree_new_full(frame_cmp, NULL, NULL, g_free);
3953 /* insert new packet comment */
3954 g_tree_replace(cf->frames_user_comments, fd, g_strdup(new_comment));
3956 expert_update_comment_count(cf->packet_comment_count);
3958 /* OK, we have unsaved changes. */
3959 cf->unsaved_changes = TRUE;
3964 * What types of comments does this capture file have?
3967 cf_comment_types(capture_file *cf)
3969 guint32 comment_types = 0;
3971 if (cf_read_shb_comment(cf) != NULL)
3972 comment_types |= WTAP_COMMENT_PER_SECTION;
3973 if (cf->packet_comment_count != 0)
3974 comment_types |= WTAP_COMMENT_PER_PACKET;
3975 return comment_types;
3979 * Add a resolved address to this file's list of resolved addresses.
3982 cf_add_ip_name_from_string(capture_file *cf, const char *addr, const char *name)
3985 * XXX - support multiple resolved address lists, and add to the one
3986 * attached to this file?
3988 if (!add_ip_name_from_string(addr, name))
3991 /* OK, we have unsaved changes. */
3992 cf->unsaved_changes = TRUE;
3996 #ifdef WANT_PACKET_EDITOR
3998 g_direct_compare_func(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4009 modified_frame_data_free(gpointer data)
4011 modified_frame_data *mfd = (modified_frame_data *)data;
4018 * Give a frame new, edited data.
4021 cf_set_frame_edited(capture_file *cf, frame_data *fd,
4022 struct wtap_pkthdr *phdr, guint8 *pd)
4024 modified_frame_data *mfd = (modified_frame_data *)g_malloc(sizeof(modified_frame_data));
4027 mfd->pd = (char *)pd;
4029 if (cf->edited_frames == NULL)
4030 cf->edited_frames = g_tree_new_full(g_direct_compare_func, NULL, NULL,
4031 modified_frame_data_free);
4032 g_tree_insert(cf->edited_frames, GINT_TO_POINTER(fd->num), mfd);
4035 /* Mark the file as having unsaved changes */
4036 cf->unsaved_changes = TRUE;
4044 } save_callback_args_t;
4047 * Save a capture to a file, in a particular format, saving either
4048 * all packets, all currently-displayed packets, or all marked packets.
4050 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4051 * up a message box for the failure.
4054 save_record(capture_file *cf, frame_data *fdata,
4055 struct wtap_pkthdr *phdr, const guint8 *pd,
4058 save_callback_args_t *args = (save_callback_args_t *)argsp;
4059 struct wtap_pkthdr hdr;
4062 gchar *display_basename;
4063 const char *pkt_comment;
4065 if (fdata->flags.has_user_comment)
4066 pkt_comment = cf_get_user_packet_comment(cf, fdata);
4068 pkt_comment = phdr->opt_comment;
4070 /* init the wtap header for saving */
4071 /* TODO: reuse phdr */
4072 /* XXX - these are the only flags that correspond to data that we have
4073 in the frame_data structure and that matter on a per-packet basis.
4075 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
4076 and "on the wire" lengths, or it doesn't.
4078 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
4081 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
4082 from the packet flags. */
4083 hdr.rec_type = phdr->rec_type;
4084 hdr.presence_flags = 0;
4085 if (fdata->flags.has_ts)
4086 hdr.presence_flags |= WTAP_HAS_TS;
4087 if (phdr->presence_flags & WTAP_HAS_INTERFACE_ID)
4088 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
4089 if (phdr->presence_flags & WTAP_HAS_PACK_FLAGS)
4090 hdr.presence_flags |= WTAP_HAS_PACK_FLAGS;
4092 hdr.caplen = phdr->caplen;
4093 hdr.len = phdr->len;
4094 hdr.pkt_encap = phdr->pkt_encap;
4096 hdr.interface_id = phdr->interface_id; /* identifier of the interface. */
4098 hdr.pack_flags = phdr->pack_flags;
4099 hdr.opt_comment = g_strdup(pkt_comment);
4102 hdr.pseudo_header = phdr->pseudo_header;
4105 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
4107 /* and save the packet */
4108 if (!wtap_dump(args->pdh, &hdr, pd, &err, &err_info)) {
4110 /* Wiretap error. */
4113 case WTAP_ERR_UNWRITABLE_ENCAP:
4115 * This is a problem with the particular frame we're writing and
4116 * the file type and subtype we're writing; note that, and report
4117 * the frame number and file type/subtype.
4119 simple_error_message_box(
4120 "Frame %u has a network type that can't be saved in a \"%s\" file.",
4121 fdata->num, wtap_file_type_subtype_string(args->file_type));
4124 case WTAP_ERR_PACKET_TOO_LARGE:
4126 * This is a problem with the particular frame we're writing and
4127 * the file type and subtype we're writing; note that, and report
4128 * the frame number and file type/subtype.
4130 simple_error_message_box(
4131 "Frame %u is larger than Wireshark supports in a \"%s\" file.",
4132 fdata->num, wtap_file_type_subtype_string(args->file_type));
4135 case WTAP_ERR_UNWRITABLE_REC_TYPE:
4137 * This is a problem with the particular record we're writing and
4138 * the file type and subtype we're writing; note that, and report
4139 * the record number and file type/subtype.
4141 simple_error_message_box(
4142 "Record %u has a record type that can't be saved in a \"%s\" file.",
4143 fdata->num, wtap_file_type_subtype_string(args->file_type));
4146 case WTAP_ERR_UNWRITABLE_REC_DATA:
4148 * This is a problem with the particular frame we're writing and
4149 * the file type and subtype we're writing; note that, and report
4150 * the frame number and file type/subtype.
4152 simple_error_message_box(
4153 "Record %u has data that can't be saved in a \"%s\" file.\n(%s)",
4154 fdata->num, wtap_file_type_subtype_string(args->file_type),
4155 err_info != NULL ? err_info : "no information supplied");
4160 display_basename = g_filename_display_basename(args->fname);
4161 simple_error_message_box(
4162 "An error occurred while writing to the file \"%s\": %s.",
4163 display_basename, wtap_strerror(err));
4164 g_free(display_basename);
4169 write_failure_alert_box(args->fname, err);
4174 g_free(hdr.opt_comment);
4179 * Can this capture file be written out in any format using Wiretap
4180 * rather than by copying the raw data?
4183 cf_can_write_with_wiretap(capture_file *cf)
4185 /* We don't care whether we support the comments in this file or not;
4186 if we can't, we'll offer the user the option of discarding the
4188 return wtap_dump_can_write(cf->linktypes, 0);
4192 * Should we let the user do a save?
4196 * the file has unsaved changes, and we can save it in some
4197 * format through Wiretap
4201 * the file is a temporary file and has no unsaved changes (so
4202 * that "saving" it just means copying it).
4204 * XXX - we shouldn't allow files to be edited if they can't be saved,
4205 * so cf->unsaved_changes should be true only if the file can be saved.
4207 * We don't care whether we support the comments in this file or not;
4208 * if we can't, we'll offer the user the option of discarding the
4212 cf_can_save(capture_file *cf)
4214 if (cf->unsaved_changes && wtap_dump_can_write(cf->linktypes, 0)) {
4215 /* Saved changes, and we can write it out with Wiretap. */
4219 if (cf->is_tempfile && !cf->unsaved_changes) {
4221 * Temporary file with no unsaved changes, so we can just do a
4227 /* Nothing to save. */
4232 * Should we let the user do a "save as"?
4236 * we can save it in some format through Wiretap
4240 * the file is a temporary file and has no unsaved changes (so
4241 * that "saving" it just means copying it).
4243 * XXX - we shouldn't allow files to be edited if they can't be saved,
4244 * so cf->unsaved_changes should be true only if the file can be saved.
4246 * We don't care whether we support the comments in this file or not;
4247 * if we can't, we'll offer the user the option of discarding the
4251 cf_can_save_as(capture_file *cf)
4253 if (wtap_dump_can_write(cf->linktypes, 0)) {
4254 /* We can write it out with Wiretap. */
4258 if (cf->is_tempfile && !cf->unsaved_changes) {
4260 * Temporary file with no unsaved changes, so we can just do a
4266 /* Nothing to save. */
4271 * Does this file have unsaved data?
4274 cf_has_unsaved_data(capture_file *cf)
4277 * If this is a temporary file, or a file with unsaved changes, it
4280 return (cf->is_tempfile && cf->count>0) || cf->unsaved_changes;
4284 * Quick scan to find packet offsets.
4286 static cf_read_status_t
4287 rescan_file(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
4289 const struct wtap_pkthdr *phdr;
4293 progdlg_t *progbar = NULL;
4294 GTimer *prog_timer = g_timer_new();
4297 GTimeVal start_time;
4298 gchar status_str[100];
4303 /* Close the old handle. */
4304 wtap_close(cf->wth);
4306 /* Open the new file. */
4307 /* XXX: this will go through all open_routines for a matching one. But right
4308 now rescan_file() is only used when a file is being saved to a different
4309 format than the original, and the user is not given a choice of which
4310 reader to use (only which format to save it in), so doing this makes
4312 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, err, &err_info, TRUE);
4313 if (cf->wth == NULL) {
4314 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
4315 return CF_READ_ERROR;
4318 /* We're scanning a file whose contents should be the same as what
4319 we had before, so we don't discard dissection state etc.. */
4322 /* Set the file name because we need it to set the follow stream filter.
4323 XXX - is that still true? We need it for other reasons, though,
4325 cf->filename = g_strdup(fname);
4327 /* Indicate whether it's a permanent or temporary file. */
4328 cf->is_tempfile = is_tempfile;
4330 /* No user changes yet. */
4331 cf->unsaved_changes = FALSE;
4333 cf->cd_t = wtap_file_type_subtype(cf->wth);
4334 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
4336 cf->snap = wtap_snapshot_length(cf->wth);
4337 if (cf->snap == 0) {
4338 /* Snapshot length not known. */
4339 cf->has_snap = FALSE;
4340 cf->snap = WTAP_MAX_PACKET_SIZE;
4342 cf->has_snap = TRUE;
4344 name_ptr = g_filename_display_basename(cf->filename);
4346 cf_callback_invoke(cf_cb_file_rescan_started, cf);
4348 /* Record whether the file is compressed.
4349 XXX - do we know this at open time? */
4350 cf->iscompressed = wtap_iscompressed(cf->wth);
4352 /* Find the size of the file. */
4353 size = wtap_file_size(cf->wth, NULL);
4355 g_timer_start(prog_timer);
4357 cf->stop_flag = FALSE;
4358 g_get_current_time(&start_time);
4361 phdr = wtap_phdr(cf->wth);
4362 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
4364 fdata = frame_data_sequence_find(cf->frames, framenum);
4365 fdata->file_off = data_offset;
4368 cf->f_datalen = wtap_read_so_far(cf->wth);
4370 /* Create the progress bar if necessary. */
4371 if (progress_is_slow(progbar, prog_timer, size, cf->f_datalen)) {
4372 progbar_val = calc_progbar_val(cf, size, cf->f_datalen, status_str, sizeof(status_str));
4373 progbar = delayed_create_progress_dlg(cf->window, "Rescanning", name_ptr,
4374 TRUE, &cf->stop_flag, &start_time, progbar_val);
4378 * Update the progress bar, but do it only after PROGBAR_UPDATE_INTERVAL
4379 * has elapsed. Calling update_progress_dlg and packets_bar_update will
4380 * likely trigger UI paint events, which might take a while depending on
4381 * the platform and display. Reset our timer *after* painting.
4383 if (progbar && g_timer_elapsed(prog_timer, NULL) > PROGBAR_UPDATE_INTERVAL) {
4384 progbar_val = calc_progbar_val(cf, size, cf->f_datalen, status_str, sizeof(status_str));
4385 /* update the packet bar content on the first run or frequently on very large files */
4386 update_progress_dlg(progbar, progbar_val, status_str);
4387 packets_bar_update();
4388 g_timer_start(prog_timer);
4392 if (cf->stop_flag) {
4393 /* Well, the user decided to abort the rescan. Sadly, as this
4394 isn't a reread, recovering is difficult, so we'll just
4395 close the current capture. */
4399 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4400 it's not already there.
4401 XXX - yes, this is O(N), so if every packet had a different
4402 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4403 there are probably going to be a small number of encapsulation types
4405 cf_add_encapsulation_type(cf, phdr->pkt_encap);
4408 /* Free the display name */
4411 /* We're done reading the file; destroy the progress bar if it was created. */
4412 if (progbar != NULL)
4413 destroy_progress_dlg(progbar);
4414 g_timer_destroy(prog_timer);
4416 /* We're done reading sequentially through the file. */
4417 cf->state = FILE_READ_DONE;
4419 /* Close the sequential I/O side, to free up memory it requires. */
4420 wtap_sequential_close(cf->wth);
4422 /* compute the time it took to load the file */
4423 compute_elapsed(cf, &start_time);
4425 /* Set the file encapsulation type now; we don't know what it is until
4426 we've looked at all the packets, as we don't know until then whether
4427 there's more than one type (and thus whether it's
4428 WTAP_ENCAP_PER_PACKET). */
4429 cf->lnk_t = wtap_file_encap(cf->wth);
4431 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
4433 if (cf->stop_flag) {
4434 /* Our caller will give up at this point. */
4435 return CF_READ_ABORTED;
4439 /* Put up a message box noting that the read failed somewhere along
4440 the line. Don't throw out the stuff we managed to read, though,
4444 case WTAP_ERR_UNSUPPORTED:
4445 simple_error_message_box(
4446 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4447 err_info != NULL ? err_info : "no information supplied");
4451 case WTAP_ERR_SHORT_READ:
4452 simple_error_message_box(
4453 "The capture file appears to have been cut short"
4454 " in the middle of a packet.");
4457 case WTAP_ERR_BAD_FILE:
4458 simple_error_message_box(
4459 "The capture file appears to be damaged or corrupt.\n(%s)",
4460 err_info != NULL ? err_info : "no information supplied");
4464 case WTAP_ERR_DECOMPRESS:
4465 simple_error_message_box(
4466 "The compressed capture file appears to be damaged or corrupt.\n"
4468 err_info != NULL ? err_info : "no information supplied");
4473 simple_error_message_box(
4474 "An error occurred while reading the"
4475 " capture file: %s.", wtap_strerror(*err));
4478 return CF_READ_ERROR;
4484 cf_save_records(capture_file *cf, const char *fname, guint save_format,
4485 gboolean compressed, gboolean discard_comments,
4486 gboolean dont_reopen)
4489 gchar *fname_new = NULL;
4492 addrinfo_lists_t *addr_lists;
4496 gchar *display_basename;
4503 save_callback_args_t callback_args;
4505 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4507 addr_lists = get_addrinfo_list();
4509 if (save_format == cf->cd_t && compressed == cf->iscompressed
4510 && !discard_comments && !cf->unsaved_changes
4511 && !(addr_lists && wtap_dump_has_name_resolution(save_format))) {
4512 /* We're saving in the format it's already in, and we're
4513 not discarding comments, and there are no changes we have
4514 in memory that aren't saved to the file, and we have no name
4515 resolution blocks to write, so we can just move or copy the raw data. */
4517 if (cf->is_tempfile) {
4518 /* The file being saved is a temporary file from a live
4519 capture, so it doesn't need to stay around under that name;
4520 first, try renaming the capture buffer file to the new name.
4521 This acts as a "safe save", in that, if the file already
4522 exists, the existing file will be removed only if the rename
4525 Sadly, on Windows, as we have the current capture file
4526 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4527 (to cause the rename to remove an existing target), as
4528 done by ws_stdio_rename() (ws_rename() is #defined to
4529 be ws_stdio_rename() on Windows) will fail.
4531 According to the MSDN documentation for CreateFile(), if,
4532 when we open a capture file, we were to directly do a CreateFile(),
4533 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4534 convert it to a file descriptor with _open_osfhandle(),
4535 that would allow the file to be renamed out from under us.
4537 However, that doesn't work in practice. Perhaps the problem
4538 is that the process doing the rename is the process that
4539 has the file open. */
4541 if (ws_rename(cf->filename, fname) == 0) {
4542 /* That succeeded - there's no need to copy the source file. */
4543 how_to_save = SAVE_WITH_MOVE;
4545 if (errno == EXDEV) {
4546 /* They're on different file systems, so we have to copy the
4548 how_to_save = SAVE_WITH_COPY;
4550 /* The rename failed, but not because they're on different
4551 file systems - put up an error message. (Or should we
4552 just punt and try to copy? The only reason why I'd
4553 expect the rename to fail and the copy to succeed would
4554 be if we didn't have permission to remove the file from
4555 the temporary directory, and that might be fixable - but
4556 is it worth requiring the user to go off and fix it?) */
4557 cf_rename_failure_alert_box(fname, errno);
4562 how_to_save = SAVE_WITH_COPY;
4565 /* It's a permanent file, so we should copy it, and not remove the
4567 how_to_save = SAVE_WITH_COPY;
4570 if (how_to_save == SAVE_WITH_COPY) {
4571 /* Copy the file, if we haven't moved it. If we're overwriting
4572 an existing file, we do it with a "safe save", by writing
4573 to a new file and, if the write succeeds, renaming the
4574 new file on top of the old file. */
4575 if (file_exists(fname)) {
4576 fname_new = g_strdup_printf("%s~", fname);
4577 if (!copy_file_binary_mode(cf->filename, fname_new))
4580 if (!copy_file_binary_mode(cf->filename, fname))
4585 /* Either we're saving in a different format or we're saving changes,
4586 such as added, modified, or removed comments, that haven't yet
4587 been written to the underlying file; we can't do that by copying
4588 or moving the capture file, we have to do it by writing the packets
4591 GArray *shb_hdrs = NULL;
4592 wtapng_iface_descriptions_t *idb_inf = NULL;
4593 GArray *nrb_hdrs = NULL;
4596 /* XXX: what free's this shb_hdr? */
4597 shb_hdrs = wtap_file_get_shb_for_new_file(cf->wth);
4598 idb_inf = wtap_file_get_idb_info(cf->wth);
4599 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->wth);
4601 /* Determine what file encapsulation type we should use. */
4602 encap = wtap_dump_file_encap_type(cf->linktypes);
4604 if (file_exists(fname)) {
4605 /* We're overwriting an existing file; write out to a new file,
4606 and, if that succeeds, rename the new file on top of the
4607 old file. That makes this a "safe save", so that we don't
4608 lose the old file if we have a problem writing out the new
4609 file. (If the existing file is the current capture file,
4610 we *HAVE* to do that, otherwise we're overwriting the file
4611 from which we're reading the packets that we're writing!) */
4612 fname_new = g_strdup_printf("%s~", fname);
4613 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4614 compressed, shb_hdrs, idb_inf, nrb_hdrs, &err);
4616 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4617 compressed, shb_hdrs, idb_inf, nrb_hdrs, &err);
4623 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4627 /* Add address resolution */
4628 wtap_dump_set_addrinfo_list(pdh, addr_lists);
4630 /* Iterate through the list of packets, processing all the packets. */
4631 callback_args.pdh = pdh;
4632 callback_args.fname = fname;
4633 callback_args.file_type = save_format;
4634 switch (process_specified_records(cf, NULL, "Saving", "packets",
4635 TRUE, save_record, &callback_args, TRUE)) {
4638 /* Completed successfully. */
4642 /* The user decided to abort the saving.
4643 If we're writing to a temporary file, remove it.
4644 XXX - should we do so even if we're not writing to a
4646 wtap_dump_close(pdh, &err);
4647 if (fname_new != NULL)
4648 ws_unlink(fname_new);
4649 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
4650 return CF_WRITE_ABORTED;
4653 /* Error while saving.
4654 If we're writing to a temporary file, remove it. */
4655 if (fname_new != NULL)
4656 ws_unlink(fname_new);
4657 wtap_dump_close(pdh, &err);
4661 if (!wtap_dump_close(pdh, &err)) {
4662 cf_close_failure_alert_box(fname, err);
4666 how_to_save = SAVE_WITH_WTAP;
4669 if (fname_new != NULL) {
4670 /* We wrote out to fname_new, and should rename it on top of
4671 fname. fname_new is now closed, so that should be possible even
4672 on Windows. However, on Windows, we first need to close whatever
4673 file descriptors we have open for fname. */
4675 wtap_fdclose(cf->wth);
4677 /* Now do the rename. */
4678 if (ws_rename(fname_new, fname) == -1) {
4679 /* Well, the rename failed. */
4680 cf_rename_failure_alert_box(fname, errno);
4682 /* Attempt to reopen the random file descriptor using the
4683 current file's filename. (At this point, the sequential
4684 file descriptor is closed.) */
4685 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4686 /* Oh, well, we're screwed. */
4687 display_basename = g_filename_display_basename(cf->filename);
4688 simple_error_message_box(
4689 file_open_error_message(err, FALSE), display_basename);
4690 g_free(display_basename);
4697 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4698 cf->unsaved_changes = FALSE;
4701 switch (how_to_save) {
4703 case SAVE_WITH_MOVE:
4704 /* We just moved the file, so the wtap structure refers to the
4705 new file, and all the information other than the filename
4706 and the "is temporary" status applies to the new file; just
4708 g_free(cf->filename);
4709 cf->filename = g_strdup(fname);
4710 cf->is_tempfile = FALSE;
4711 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4714 case SAVE_WITH_COPY:
4715 /* We just copied the file, s all the information other than
4716 the wtap structure, the filename, and the "is temporary"
4717 status applies to the new file; just update that. */
4718 wtap_close(cf->wth);
4719 /* Although we're just "copying" and then opening the copy, it will
4720 try all open_routine readers to open the copy, so we need to
4721 reset the cfile's open_type. */
4722 cf->open_type = WTAP_TYPE_AUTO;
4723 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, &err, &err_info, TRUE);
4724 if (cf->wth == NULL) {
4725 cf_open_failure_alert_box(fname, err, err_info, FALSE, 0);
4728 g_free(cf->filename);
4729 cf->filename = g_strdup(fname);
4730 cf->is_tempfile = FALSE;
4732 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4735 case SAVE_WITH_WTAP:
4736 /* Open and read the file we saved to.
4738 XXX - this is somewhat of a waste; we already have the
4739 packets, all this gets us is updated file type information
4740 (which we could just stuff into "cf"), and having the new
4741 file be the one we have opened and from which we're reading
4742 the data, and it means we have to spend time opening and
4743 reading the file, which could be a significant amount of
4744 time if the file is large.
4746 If the capture-file-writing code were to return the
4747 seek offset of each packet it writes, we could save that
4748 in the frame_data structure for the frame, and just open
4749 the file without reading it again...
4751 ...as long as, for gzipped files, the process of writing
4752 out the file *also* generates the information needed to
4753 support fast random access to the compressed file. */
4754 /* rescan_file will cause us to try all open_routines, so
4755 reset cfile's open_type */
4756 cf->open_type = WTAP_TYPE_AUTO;
4757 if (rescan_file(cf, fname, FALSE, &err) != CF_READ_OK) {
4758 /* The rescan failed; just close the file. Either
4759 a dialog was popped up for the failure, so the
4760 user knows what happened, or they stopped the
4761 rescan, in which case they know what happened. */
4767 /* If we were told to discard the comments, do so. */
4768 if (discard_comments) {
4769 /* Remove SHB comment, if any. */
4770 wtap_write_shb_comment(cf->wth, NULL);
4772 /* remove all user comments */
4773 for (framenum = 1; framenum <= cf->count; framenum++) {
4774 fdata = frame_data_sequence_find(cf->frames, framenum);
4776 fdata->flags.has_phdr_comment = FALSE;
4777 fdata->flags.has_user_comment = FALSE;
4780 if (cf->frames_user_comments) {
4781 g_tree_destroy(cf->frames_user_comments);
4782 cf->frames_user_comments = NULL;
4785 cf->packet_comment_count = 0;
4791 if (fname_new != NULL) {
4792 /* We were trying to write to a temporary file; get rid of it if it
4793 exists. (We don't care whether this fails, as, if it fails,
4794 there's not much we can do about it. I guess if it failed for
4795 a reason other than "it doesn't exist", we could report an
4796 error, so the user knows there's a junk file that they might
4797 want to clean up.) */
4798 ws_unlink(fname_new);
4801 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4802 return CF_WRITE_ERROR;
4806 cf_export_specified_packets(capture_file *cf, const char *fname,
4807 packet_range_t *range, guint save_format,
4808 gboolean compressed)
4810 gchar *fname_new = NULL;
4813 save_callback_args_t callback_args;
4814 GArray *shb_hdrs = NULL;
4815 wtapng_iface_descriptions_t *idb_inf = NULL;
4816 GArray *nrb_hdrs = NULL;
4819 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4821 packet_range_process_init(range);
4823 /* We're writing out specified packets from the specified capture
4824 file to another file. Even if all captured packets are to be
4825 written, don't special-case the operation - read each packet
4826 and then write it out if it's one of the specified ones. */
4828 /* XXX: what free's this shb_hdr? */
4829 shb_hdrs = wtap_file_get_shb_for_new_file(cf->wth);
4830 idb_inf = wtap_file_get_idb_info(cf->wth);
4831 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->wth);
4833 /* Determine what file encapsulation type we should use. */
4834 encap = wtap_dump_file_encap_type(cf->linktypes);
4836 if (file_exists(fname)) {
4837 /* We're overwriting an existing file; write out to a new file,
4838 and, if that succeeds, rename the new file on top of the
4839 old file. That makes this a "safe save", so that we don't
4840 lose the old file if we have a problem writing out the new
4841 file. (If the existing file is the current capture file,
4842 we *HAVE* to do that, otherwise we're overwriting the file
4843 from which we're reading the packets that we're writing!) */
4844 fname_new = g_strdup_printf("%s~", fname);
4845 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4846 compressed, shb_hdrs, idb_inf, nrb_hdrs, &err);
4848 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4849 compressed, shb_hdrs, idb_inf, nrb_hdrs, &err);
4855 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4859 /* Add address resolution */
4860 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4862 /* Iterate through the list of packets, processing the packets we were
4865 XXX - we've already called "packet_range_process_init(range)", but
4866 "process_specified_records()" will do it again. Fortunately,
4867 that's harmless in this case, as we haven't done anything to
4868 "range" since we initialized it. */
4869 callback_args.pdh = pdh;
4870 callback_args.fname = fname;
4871 callback_args.file_type = save_format;
4872 switch (process_specified_records(cf, range, "Writing", "specified records",
4873 TRUE, save_record, &callback_args, TRUE)) {
4876 /* Completed successfully. */
4880 /* The user decided to abort the saving.
4881 If we're writing to a temporary file, remove it.
4882 XXX - should we do so even if we're not writing to a
4884 wtap_dump_close(pdh, &err);
4885 if (fname_new != NULL)
4886 ws_unlink(fname_new);
4887 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4888 return CF_WRITE_ABORTED;
4892 /* Error while saving.
4893 If we're writing to a temporary file, remove it. */
4894 if (fname_new != NULL)
4895 ws_unlink(fname_new);
4896 wtap_dump_close(pdh, &err);
4900 if (!wtap_dump_close(pdh, &err)) {
4901 cf_close_failure_alert_box(fname, err);
4905 if (fname_new != NULL) {
4906 /* We wrote out to fname_new, and should rename it on top of
4907 fname; fname is now closed, so that should be possible even
4908 on Windows. Do the rename. */
4909 if (ws_rename(fname_new, fname) == -1) {
4910 /* Well, the rename failed. */
4911 cf_rename_failure_alert_box(fname, errno);
4916 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
4920 if (fname_new != NULL) {
4921 /* We were trying to write to a temporary file; get rid of it if it
4922 exists. (We don't care whether this fails, as, if it fails,
4923 there's not much we can do about it. I guess if it failed for
4924 a reason other than "it doesn't exist", we could report an
4925 error, so the user knows there's a junk file that they might
4926 want to clean up.) */
4927 ws_unlink(fname_new);
4930 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
4931 return CF_WRITE_ERROR;
4935 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4936 gboolean for_writing, int file_type)
4938 gchar *display_basename;
4941 /* Wiretap error. */
4942 display_basename = g_filename_display_basename(filename);
4945 case WTAP_ERR_NOT_REGULAR_FILE:
4946 simple_error_message_box(
4947 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4951 case WTAP_ERR_RANDOM_OPEN_PIPE:
4952 /* Seen only when opening a capture file for reading. */
4953 simple_error_message_box(
4954 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
4955 "To capture from a pipe or FIFO use wireshark -i -",
4959 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
4960 /* Seen only when opening a capture file for reading. */
4961 simple_error_message_box(
4962 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4966 case WTAP_ERR_UNSUPPORTED:
4967 /* Seen only when opening a capture file for reading. */
4968 simple_error_message_box(
4969 "The file \"%s\" contains record data that Wireshark doesn't support.\n"
4972 err_info != NULL ? err_info : "no information supplied");
4976 case WTAP_ERR_CANT_WRITE_TO_PIPE:
4977 /* Seen only when opening a capture file for writing. */
4978 simple_error_message_box(
4979 "The file \"%s\" is a pipe, and %s capture files can't be "
4980 "written to a pipe.",
4981 display_basename, wtap_file_type_subtype_string(file_type));
4984 case WTAP_ERR_UNWRITABLE_FILE_TYPE:
4985 /* Seen only when opening a capture file for writing. */
4986 simple_error_message_box(
4987 "Wireshark doesn't support writing capture files in that format.");
4990 case WTAP_ERR_UNWRITABLE_ENCAP:
4991 /* Seen only when opening a capture file for writing. */
4992 simple_error_message_box("Wireshark can't save this capture in that format.");
4995 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
4997 simple_error_message_box(
4998 "Wireshark can't save this capture in that format.");
5000 simple_error_message_box(
5001 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
5006 case WTAP_ERR_BAD_FILE:
5007 /* Seen only when opening a capture file for reading. */
5008 simple_error_message_box(
5009 "The file \"%s\" appears to be damaged or corrupt.\n"
5012 err_info != NULL ? err_info : "no information supplied");
5016 case WTAP_ERR_CANT_OPEN:
5018 simple_error_message_box(
5019 "The file \"%s\" could not be created for some unknown reason.",
5022 simple_error_message_box(
5023 "The file \"%s\" could not be opened for some unknown reason.",
5028 case WTAP_ERR_SHORT_READ:
5029 simple_error_message_box(
5030 "The file \"%s\" appears to have been cut short"
5031 " in the middle of a packet or other data.",
5035 case WTAP_ERR_SHORT_WRITE:
5036 simple_error_message_box(
5037 "A full header couldn't be written to the file \"%s\".",
5041 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
5042 simple_error_message_box(
5043 "This file type cannot be written as a compressed file.");
5046 case WTAP_ERR_DECOMPRESS:
5047 simple_error_message_box(
5048 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
5049 "(%s)", display_basename,
5050 err_info != NULL ? err_info : "no information supplied");
5055 simple_error_message_box(
5056 "The file \"%s\" could not be %s: %s.",
5058 for_writing ? "created" : "opened",
5059 wtap_strerror(err));
5062 g_free(display_basename);
5065 open_failure_alert_box(filename, err, for_writing);
5070 * XXX - whether we mention the source pathname, the target pathname,
5071 * or both depends on the error and on what we find if we look for
5072 * one or both of them.
5075 cf_rename_failure_alert_box(const char *filename, int err)
5077 gchar *display_basename;
5079 display_basename = g_filename_display_basename(filename);
5083 /* XXX - should check whether the source exists and, if not,
5084 report it as the problem and, if so, report the destination
5086 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
5091 /* XXX - if we're doing a rename after a safe save, we should
5092 probably say something else. */
5093 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
5098 /* XXX - this should probably mention both the source and destination
5100 simple_error_message_box("The file \"%s\" could not be moved: %s.",
5101 display_basename, wtap_strerror(err));
5104 g_free(display_basename);
5107 /* Check for write errors - if the file is being written to an NFS server,
5108 a write error may not show up until the file is closed, as NFS clients
5109 might not send writes to the server until the "write()" call finishes,
5110 so that the write may fail on the server but the "write()" may succeed. */
5112 cf_close_failure_alert_box(const char *filename, int err)
5114 gchar *display_basename;
5117 /* Wiretap error. */
5118 display_basename = g_filename_display_basename(filename);
5121 case WTAP_ERR_CANT_CLOSE:
5122 simple_error_message_box(
5123 "The file \"%s\" couldn't be closed for some unknown reason.",
5127 case WTAP_ERR_SHORT_WRITE:
5128 simple_error_message_box(
5129 "Not all the packets could be written to the file \"%s\".",
5134 simple_error_message_box(
5135 "An error occurred while closing the file \"%s\": %s.",
5136 display_basename, wtap_strerror(err));
5139 g_free(display_basename);
5142 We assume that a close error from the OS is really a write error. */
5143 write_failure_alert_box(filename, err);
5147 /* Reload the current capture file. */
5149 cf_reload(capture_file *cf) {
5151 gboolean is_tempfile;
5154 /* If the file could be opened, "cf_open()" calls "cf_close()"
5155 to get rid of state for the old capture file before filling in state
5156 for the new capture file. "cf_close()" will remove the file if
5157 it's a temporary file; we don't want that to happen (for one thing,
5158 it'd prevent subsequent reopens from working). Remember whether it's
5159 a temporary file, mark it as not being a temporary file, and then
5160 reopen it as the type of file it was.
5162 Also, "cf_close()" will free "cf->filename", so we must make
5163 a copy of it first. */
5164 filename = g_strdup(cf->filename);
5165 is_tempfile = cf->is_tempfile;
5166 cf->is_tempfile = FALSE;
5167 if (cf_open(cf, filename, cf->open_type, is_tempfile, &err) == CF_OK) {
5168 switch (cf_read(cf, TRUE)) {
5172 /* Just because we got an error, that doesn't mean we were unable
5173 to read any of the file; we handle what we could get from the
5177 case CF_READ_ABORTED:
5178 /* The user bailed out of re-reading the capture file; the
5179 capture file has been closed - just free the capture file name
5180 string and return (without changing the last containing
5186 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
5187 Instead, the file was left open, so we should restore "cf->is_tempfile"
5190 XXX - change the menu? Presumably "cf_open()" will do that;
5191 make sure it does! */
5192 cf->is_tempfile = is_tempfile;
5194 /* "cf_open()" made a copy of the file name we handed it, so
5195 we should free up our copy. */
5205 * indent-tabs-mode: nil
5208 * ex: set shiftwidth=2 tabstop=8 expandtab:
5209 * :indentSize=2:tabSize=8:noTabs=true: