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.
41 #include <wsutil/tempfile.h>
42 #include <wsutil/file_util.h>
43 #include <wsutil/filesystem.h>
44 #include <wsutil/ws_version_info.h>
46 #include <wiretap/merge.h>
48 #include <epan/exceptions.h>
49 #include <epan/epan-int.h>
50 #include <epan/epan.h>
51 #include <epan/column.h>
52 #include <epan/packet.h>
53 #include <epan/column-utils.h>
54 #include <epan/expert.h>
55 #include <epan/prefs.h>
56 #include <epan/dfilter/dfilter.h>
57 #include <epan/epan_dissect.h>
59 #include <epan/dissectors/packet-data.h>
60 #include <epan/dissectors/packet-ber.h>
61 #include <epan/timestamp.h>
62 #include <epan/dfilter/dfilter-macro.h>
63 #include <epan/strutil.h>
64 #include <epan/addr_resolv.h>
67 #include "color_filters.h"
71 #include "frame_tvbuff.h"
73 #include "ui/alert_box.h"
74 #include "ui/simple_dialog.h"
75 #include "ui/main_statusbar.h"
76 #include "ui/progress_dlg.h"
77 #include "ui/ui_util.h"
79 /* Needed for addrinfo */
80 #ifdef HAVE_SYS_TYPES_H
81 # include <sys/types.h>
84 #ifdef HAVE_SYS_SOCKET_H
85 #include <sys/socket.h>
88 #ifdef HAVE_NETINET_IN_H
89 # include <netinet/in.h>
96 #ifdef HAVE_WINSOCK2_H
97 # include <winsock2.h>
100 #if defined(_WIN32) && defined(INET6)
101 # include <ws2tcpip.h>
105 gboolean auto_scroll_live; /* GTK+ only? */
108 static int read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
109 column_info *cinfo, gint64 offset);
111 static void rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect);
118 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
120 static void match_subtree_text(proto_node *node, gpointer data);
121 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
123 static match_result match_narrow_and_wide(capture_file *cf, frame_data *fdata,
125 static match_result match_narrow(capture_file *cf, frame_data *fdata,
127 static match_result match_wide(capture_file *cf, frame_data *fdata,
129 static match_result match_binary(capture_file *cf, frame_data *fdata,
131 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
133 static match_result match_marked(capture_file *cf, frame_data *fdata,
135 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
137 static gboolean find_packet(capture_file *cf,
138 match_result (*match_function)(capture_file *, frame_data *, void *),
139 void *criterion, search_direction dir);
141 static const char *cf_get_user_packet_comment(capture_file *cf, const frame_data *fd);
143 static void cf_open_failure_alert_box(const char *filename, int err,
144 gchar *err_info, gboolean for_writing,
146 static void cf_rename_failure_alert_box(const char *filename, int err);
147 static void cf_close_failure_alert_box(const char *filename, int err);
148 static void ref_time_packets(capture_file *cf);
149 /* Update the progress bar this many times when reading a file. */
150 #define N_PROGBAR_UPDATES 100
151 /* We read around 200k/100ms don't update the progress bar more often than that */
152 #define MIN_QUANTUM 200000
153 #define MIN_NUMBER_OF_PACKET 1500
156 * We could probably use g_signal_...() instead of the callbacks below but that
157 * would require linking our CLI programs to libgobject and creating an object
158 * instance for the signals.
161 cf_callback_t cb_fct;
163 } cf_callback_data_t;
165 static GList *cf_callbacks = NULL;
168 cf_callback_invoke(int event, gpointer data)
170 cf_callback_data_t *cb;
171 GList *cb_item = cf_callbacks;
173 /* there should be at least one interested */
174 g_assert(cb_item != NULL);
176 while (cb_item != NULL) {
177 cb = (cf_callback_data_t *)cb_item->data;
178 cb->cb_fct(event, data, cb->user_data);
179 cb_item = g_list_next(cb_item);
185 cf_callback_add(cf_callback_t func, gpointer user_data)
187 cf_callback_data_t *cb;
189 cb = g_new(cf_callback_data_t,1);
191 cb->user_data = user_data;
193 cf_callbacks = g_list_prepend(cf_callbacks, cb);
197 cf_callback_remove(cf_callback_t func, gpointer user_data)
199 cf_callback_data_t *cb;
200 GList *cb_item = cf_callbacks;
202 while (cb_item != NULL) {
203 cb = (cf_callback_data_t *)cb_item->data;
204 if (cb->cb_fct == func && cb->user_data == user_data) {
205 cf_callbacks = g_list_remove(cf_callbacks, cb);
209 cb_item = g_list_next(cb_item);
212 g_assert_not_reached();
216 cf_timestamp_auto_precision(capture_file *cf)
220 /* don't try to get the file's precision if none is opened */
221 if (cf->state == FILE_CLOSED) {
225 /* Set the column widths of those columns that show the time in
226 "command-line-specified" format. */
227 for (i = 0; i < cf->cinfo.num_cols; i++) {
228 if (col_has_time_fmt(&cf->cinfo, i)) {
229 packet_list_resize_column(i);
235 cf_get_computed_elapsed(capture_file *cf)
237 return cf->computed_elapsed;
241 * GLIB_CHECK_VERSION(2,28,0) adds g_get_real_time which could minimize or
244 static void compute_elapsed(capture_file *cf, GTimeVal *start_time)
249 g_get_current_time(&time_now);
251 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
252 time_now.tv_usec - start_time->tv_usec;
254 cf->computed_elapsed = (gulong) (delta_time / 1000); /* ms */
257 static const nstime_t *
258 ws_get_frame_ts(void *data, guint32 frame_num)
260 capture_file *cf = (capture_file *) data;
262 if (cf->prev_dis && cf->prev_dis->num == frame_num)
263 return &cf->prev_dis->abs_ts;
265 if (cf->prev_cap && cf->prev_cap->num == frame_num)
266 return &cf->prev_cap->abs_ts;
269 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
271 return (fd) ? &fd->abs_ts : NULL;
278 ws_get_user_comment(void *data, const frame_data *fd)
280 capture_file *cf = (capture_file *) data;
282 return cf_get_user_packet_comment(cf, fd);
286 ws_epan_new(capture_file *cf)
288 epan_t *epan = epan_new();
291 epan->get_frame_ts = ws_get_frame_ts;
292 epan->get_interface_name = cap_file_get_interface_name;
293 epan->get_user_comment = ws_get_user_comment;
299 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
304 wth = wtap_open_offline(fname, type, err, &err_info, TRUE);
308 /* The open succeeded. Close whatever capture file we had open,
309 and fill in the information for this file. */
312 /* Initialize the packet header. */
313 wtap_phdr_init(&cf->phdr);
315 /* XXX - we really want to initialize this after we've read all
316 the packets, so we know how much we'll ultimately need. */
317 ws_buffer_init(&cf->buf, 1500);
319 /* Create new epan session for dissection.
320 * (The old one was freed in cf_close().)
322 cf->epan = ws_epan_new(cf);
324 /* We're about to start reading the file. */
325 cf->state = FILE_READ_IN_PROGRESS;
330 /* Set the file name because we need it to set the follow stream filter.
331 XXX - is that still true? We need it for other reasons, though,
333 cf->filename = g_strdup(fname);
335 /* Indicate whether it's a permanent or temporary file. */
336 cf->is_tempfile = is_tempfile;
338 /* No user changes yet. */
339 cf->unsaved_changes = FALSE;
341 cf->computed_elapsed = 0;
343 cf->cd_t = wtap_file_type_subtype(cf->wth);
344 cf->open_type = type;
345 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
347 cf->packet_comment_count = 0;
348 cf->displayed_count = 0;
349 cf->marked_count = 0;
350 cf->ignored_count = 0;
351 cf->ref_time_count = 0;
352 cf->drops_known = FALSE;
354 cf->snap = wtap_snapshot_length(cf->wth);
356 /* Snapshot length not known. */
357 cf->has_snap = FALSE;
358 cf->snap = WTAP_MAX_PACKET_SIZE;
362 /* Allocate a frame_data_sequence for the frames in this file */
363 cf->frames = new_frame_data_sequence();
365 nstime_set_zero(&cf->elapsed_time);
371 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
372 cf_timestamp_auto_precision(cf);
374 packet_list_queue_draw();
375 cf_callback_invoke(cf_cb_file_opened, cf);
377 if (cf->cd_t == WTAP_FILE_TYPE_SUBTYPE_BER) {
378 /* tell the BER dissector the file name */
379 ber_set_filename(cf->filename);
382 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
383 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
388 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
393 * Add an encapsulation type to cf->linktypes.
396 cf_add_encapsulation_type(capture_file *cf, int encap)
400 for (i = 0; i < cf->linktypes->len; i++) {
401 if (g_array_index(cf->linktypes, gint, i) == encap)
402 return; /* it's already there */
404 /* It's not already there - add it. */
405 g_array_append_val(cf->linktypes, encap);
408 /* Reset everything to a pristine state */
410 cf_close(capture_file *cf)
412 if (cf->state == FILE_CLOSED)
413 return; /* Nothing to do */
415 /* Die if we're in the middle of reading a file. */
416 g_assert(cf->state != FILE_READ_IN_PROGRESS);
418 cf_callback_invoke(cf_cb_file_closing, cf);
420 /* close things, if not already closed before */
421 color_filters_cleanup();
427 /* We have no file open... */
428 if (cf->filename != NULL) {
429 /* If it's a temporary file, remove it. */
431 ws_unlink(cf->filename);
432 g_free(cf->filename);
435 /* ...which means we have no changes to that file to save. */
436 cf->unsaved_changes = FALSE;
438 /* no open_routine type */
439 cf->open_type = WTAP_TYPE_AUTO;
441 /* Clean up the packet header. */
442 wtap_phdr_cleanup(&cf->phdr);
444 /* Free up the packet buffer. */
445 ws_buffer_free(&cf->buf);
447 dfilter_free(cf->rfcode);
449 if (cf->frames != NULL) {
450 free_frame_data_sequence(cf->frames);
453 #ifdef WANT_PACKET_EDITOR
454 if (cf->edited_frames) {
455 g_tree_destroy(cf->edited_frames);
456 cf->edited_frames = NULL;
459 if (cf->frames_user_comments) {
460 g_tree_destroy(cf->frames_user_comments);
461 cf->frames_user_comments = NULL;
463 cf_unselect_packet(cf); /* nothing to select */
464 cf->first_displayed = 0;
465 cf->last_displayed = 0;
467 /* No frames, no frame selected, no field in that frame selected. */
469 cf->current_frame = 0;
471 cf->finfo_selected = NULL;
473 /* No frame link-layer types, either. */
474 if (cf->linktypes != NULL) {
475 g_array_free(cf->linktypes, TRUE);
476 cf->linktypes = NULL;
479 /* Clear the packet list. */
480 packet_list_freeze();
485 nstime_set_zero(&cf->elapsed_time);
487 reset_tap_listeners();
492 /* We have no file open. */
493 cf->state = FILE_CLOSED;
495 cf_callback_invoke(cf_cb_file_closed, cf);
499 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
503 progbar_val = (gfloat) file_pos / (gfloat) size;
504 if (progbar_val > 1.0) {
506 /* The file probably grew while we were reading it.
507 * Update file size, and try again.
509 size = wtap_file_size(cf->wth, NULL);
512 progbar_val = (gfloat) file_pos / (gfloat) size;
514 /* If it's still > 1, either "wtap_file_size()" failed (in which
515 * case there's not much we can do about it), or the file
516 * *shrank* (in which case there's not much we can do about
517 * it); just clip the progress value at 1.0.
519 if (progbar_val > 1.0f)
523 g_snprintf(status_str, status_size,
524 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
525 file_pos / 1024, size / 1024);
531 cf_read(capture_file *cf, gboolean reloading)
536 progdlg_t *progbar = NULL;
541 volatile gboolean create_proto_tree;
545 /* Compile the current display filter.
546 * We assume this will not fail since cf->dfilter is only set in
547 * cf_filter IFF the filter was valid.
549 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
550 g_assert(!cf->dfilter || (compiled && dfcode));
552 /* Get the union of the flags for all tap listeners. */
553 tap_flags = union_of_tap_listener_flags();
555 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
557 reset_tap_listeners();
559 name_ptr = g_filename_display_basename(cf->filename);
562 cf_callback_invoke(cf_cb_file_reload_started, cf);
564 cf_callback_invoke(cf_cb_file_read_started, cf);
566 /* Record whether the file is compressed.
567 XXX - do we know this at open time? */
568 cf->iscompressed = wtap_iscompressed(cf->wth);
570 /* The packet list window will be empty until the file is completly loaded */
571 packet_list_freeze();
574 g_get_current_time(&start_time);
576 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
580 int displayed_once = 0;
588 gint64 progbar_quantum;
589 gint64 progbar_nextstep;
591 gchar status_str[100];
595 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
597 /* Find the size of the file. */
598 size = wtap_file_size(cf->wth, NULL);
600 /* Update the progress bar when it gets to this value. */
601 progbar_nextstep = 0;
602 /* When we reach the value that triggers a progress bar update,
603 bump that value by this amount. */
605 progbar_quantum = size/N_PROGBAR_UPDATES;
606 if (progbar_quantum < MIN_QUANTUM)
607 progbar_quantum = MIN_QUANTUM;
611 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
614 file_pos = wtap_read_so_far(cf->wth);
616 /* Create the progress bar if necessary.
617 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
619 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
620 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
622 progbar = delayed_create_progress_dlg(cf->window, "Reloading", name_ptr,
623 TRUE, &stop_flag, &start_time, progbar_val);
625 progbar = delayed_create_progress_dlg(cf->window, "Loading", name_ptr,
626 TRUE, &stop_flag, &start_time, progbar_val);
629 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
630 when we update it, we have to run the GTK+ main loop to get it
631 to repaint what's pending, and doing so may involve an "ioctl()"
632 to see if there's any pending input from an X server, and doing
633 that for every packet can be costly, especially on a big file. */
634 if (file_pos >= progbar_nextstep) {
635 if (progbar != NULL) {
636 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
637 /* update the packet bar content on the first run or frequently on very large files */
639 if (progbar_quantum > 500000 || displayed_once == 0) {
640 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
642 packets_bar_update();
645 #endif /* HAVE_LIBPCAP */
646 update_progress_dlg(progbar, progbar_val, status_str);
648 progbar_nextstep += progbar_quantum;
653 /* Well, the user decided to abort the read. He/She will be warned and
654 it might be enough for him/her to work with the already loaded
656 This is especially true for very large capture files, where you don't
657 want to wait loading the whole file (which may last minutes or even
658 hours even on fast machines) just to see that it was the wrong file. */
661 read_packet(cf, dfcode, &edt, cinfo, data_offset);
664 CATCH(OutOfMemoryError) {
665 simple_message_box(ESD_TYPE_ERROR, NULL,
666 "More information and workarounds can be found at\n"
667 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
668 "Sorry, but Wireshark has run out of memory and has to terminate now.");
670 /* Could we close the current capture and free up memory from that? */
672 /* we have to terminate, as we cannot recover from the memory error */
678 /* Free the display name */
681 /* Cleanup and release all dfilter resources */
682 if (dfcode != NULL) {
683 dfilter_free(dfcode);
686 epan_dissect_cleanup(&edt);
688 /* We're done reading the file; destroy the progress bar if it was created. */
690 destroy_progress_dlg(progbar);
692 /* We're done reading sequentially through the file. */
693 cf->state = FILE_READ_DONE;
695 /* Close the sequential I/O side, to free up memory it requires. */
696 wtap_sequential_close(cf->wth);
698 /* Allow the protocol dissectors to free up memory that they
699 * don't need after the sequential run-through of the packets. */
700 postseq_cleanup_all_protocols();
702 /* compute the time it took to load the file */
703 compute_elapsed(cf, &start_time);
705 /* Set the file encapsulation type now; we don't know what it is until
706 we've looked at all the packets, as we don't know until then whether
707 there's more than one type (and thus whether it's
708 WTAP_ENCAP_PER_PACKET). */
709 cf->lnk_t = wtap_file_encap(cf->wth);
711 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
716 cf_callback_invoke(cf_cb_file_reload_finished, cf);
718 cf_callback_invoke(cf_cb_file_read_finished, cf);
720 /* If we have any displayed packets to select, select the first of those
721 packets by making the first row the selected row. */
722 if (cf->first_displayed != 0) {
723 packet_list_select_first_row();
727 simple_message_box(ESD_TYPE_WARN, NULL,
728 "The remaining packets in the file were discarded.\n"
730 "As a lot of packets from the original file will be missing,\n"
731 "remember to be careful when saving the current content to a file.\n",
732 "File loading was cancelled.");
733 return CF_READ_ERROR;
737 /* Put up a message box noting that the read failed somewhere along
738 the line. Don't throw out the stuff we managed to read, though,
742 case WTAP_ERR_UNSUPPORTED:
743 simple_error_message_box(
744 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
745 err_info != NULL ? err_info : "no information supplied");
749 case WTAP_ERR_SHORT_READ:
750 simple_error_message_box(
751 "The capture file appears to have been cut short"
752 " in the middle of a packet.");
755 case WTAP_ERR_BAD_FILE:
756 simple_error_message_box(
757 "The capture file appears to be damaged or corrupt.\n(%s)",
758 err_info != NULL ? err_info : "no information supplied");
762 case WTAP_ERR_DECOMPRESS:
763 simple_error_message_box(
764 "The compressed capture file appears to be damaged or corrupt.\n",
765 err_info != NULL ? err_info : "no information supplied");
770 simple_error_message_box(
771 "An error occurred while reading the"
772 " capture file: %s.", wtap_strerror(err));
775 return CF_READ_ERROR;
782 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
785 volatile int newly_displayed_packets = 0;
788 gboolean create_proto_tree;
792 /* Compile the current display filter.
793 * We assume this will not fail since cf->dfilter is only set in
794 * cf_filter IFF the filter was valid.
796 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
797 g_assert(!cf->dfilter || (compiled && dfcode));
799 /* Get the union of the flags for all tap listeners. */
800 tap_flags = union_of_tap_listener_flags();
802 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
806 packet_list_check_end();
807 /* Don't freeze/thaw the list when doing live capture */
808 /*packet_list_freeze();*/
810 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
812 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
815 gint64 data_offset = 0;
818 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
820 while (to_read != 0) {
821 wtap_cleareof(cf->wth);
822 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
825 if (cf->state == FILE_READ_ABORTED) {
826 /* Well, the user decided to exit Wireshark. Break out of the
827 loop, and let the code below (which is called even if there
828 aren't any packets left to read) exit. */
831 if (read_packet(cf, dfcode, &edt, (column_info *) cinfo, data_offset) != -1) {
832 newly_displayed_packets++;
837 CATCH(OutOfMemoryError) {
838 simple_message_box(ESD_TYPE_ERROR, NULL,
839 "More information and workarounds can be found at\n"
840 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
841 "Sorry, but Wireshark has run out of memory and has to terminate now.");
843 /* Could we close the current capture and free up memory from that? */
844 return CF_READ_ABORTED;
846 /* we have to terminate, as we cannot recover from the memory error */
852 /* Update the file encapsulation; it might have changed based on the
853 packets we've read. */
854 cf->lnk_t = wtap_file_encap(cf->wth);
856 /* Cleanup and release all dfilter resources */
857 if (dfcode != NULL) {
858 dfilter_free(dfcode);
861 epan_dissect_cleanup(&edt);
863 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
864 cf->count, cf->state, *err);*/
866 /* Don't freeze/thaw the list when doing live capture */
867 /*packet_list_thaw();*/
868 /* With the new packet list the first packet
869 * isn't automatically selected.
871 if (!cf->current_frame)
872 packet_list_select_first_row();
874 /* moving to the end of the packet list - if the user requested so and
875 we have some new packets. */
876 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
877 packet_list_moveto_end();
879 if (cf->state == FILE_READ_ABORTED) {
880 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
881 so that our caller can kill off the capture child process;
882 this will cause an EOF on the pipe from the child, so
883 "cf_finish_tail()" will be called, and it will clean up
885 return CF_READ_ABORTED;
886 } else if (*err != 0) {
887 /* We got an error reading the capture file.
888 XXX - pop up a dialog box instead? */
889 if (err_info != NULL) {
890 g_warning("Error \"%s\" while reading \"%s\" (\"%s\")",
891 wtap_strerror(*err), cf->filename, err_info);
894 g_warning("Error \"%s\" while reading \"%s\"",
895 wtap_strerror(*err), cf->filename);
897 return CF_READ_ERROR;
903 cf_fake_continue_tail(capture_file *cf) {
904 cf->state = FILE_READ_DONE;
908 cf_finish_tail(capture_file *cf, int *err)
915 gboolean create_proto_tree;
919 /* Compile the current display filter.
920 * We assume this will not fail since cf->dfilter is only set in
921 * cf_filter IFF the filter was valid.
923 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
924 g_assert(!cf->dfilter || (compiled && dfcode));
926 /* Get the union of the flags for all tap listeners. */
927 tap_flags = union_of_tap_listener_flags();
928 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
930 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
932 if (cf->wth == NULL) {
934 return CF_READ_ERROR;
937 packet_list_check_end();
938 /* Don't freeze/thaw the list when doing live capture */
939 /*packet_list_freeze();*/
941 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
943 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
944 if (cf->state == FILE_READ_ABORTED) {
945 /* Well, the user decided to abort the read. Break out of the
946 loop, and let the code below (which is called even if there
947 aren't any packets left to read) exit. */
950 read_packet(cf, dfcode, &edt, cinfo, data_offset);
953 /* Cleanup and release all dfilter resources */
954 if (dfcode != NULL) {
955 dfilter_free(dfcode);
958 epan_dissect_cleanup(&edt);
960 /* Don't freeze/thaw the list when doing live capture */
961 /*packet_list_thaw();*/
963 if (cf->state == FILE_READ_ABORTED) {
964 /* Well, the user decided to abort the read. We're only called
965 when the child capture process closes the pipe to us (meaning
966 it's probably exited), so we can just close the capture
967 file; we return CF_READ_ABORTED so our caller can do whatever
968 is appropriate when that happens. */
970 return CF_READ_ABORTED;
973 if (auto_scroll_live && cf->count != 0)
974 packet_list_moveto_end();
976 /* We're done reading sequentially through the file. */
977 cf->state = FILE_READ_DONE;
979 /* We're done reading sequentially through the file; close the
980 sequential I/O side, to free up memory it requires. */
981 wtap_sequential_close(cf->wth);
983 /* Allow the protocol dissectors to free up memory that they
984 * don't need after the sequential run-through of the packets. */
985 postseq_cleanup_all_protocols();
987 /* Update the file encapsulation; it might have changed based on the
988 packets we've read. */
989 cf->lnk_t = wtap_file_encap(cf->wth);
991 /* Update the details in the file-set dialog, as the capture file
992 * has likely grown since we first stat-ed it */
993 fileset_update_file(cf->filename);
996 /* We got an error reading the capture file.
997 XXX - pop up a dialog box? */
998 if (err_info != NULL) {
999 g_warning("Error \"%s\" while reading \"%s\" (\"%s\")",
1000 wtap_strerror(*err), cf->filename, err_info);
1003 g_warning("Error \"%s\" while reading \"%s\"",
1004 wtap_strerror(*err), cf->filename);
1006 return CF_READ_ERROR;
1011 #endif /* HAVE_LIBPCAP */
1014 cf_get_display_name(capture_file *cf)
1018 /* Return a name to use in displays */
1019 if (!cf->is_tempfile) {
1020 /* Get the last component of the file name, and use that. */
1022 displayname = g_filename_display_basename(cf->filename);
1024 displayname=g_strdup("(No file)");
1027 /* The file we read is a temporary file from a live capture or
1028 a merge operation; we don't mention its name, but, if it's
1029 from a capture, give the source of the capture. */
1031 displayname = g_strdup(cf->source);
1033 displayname = g_strdup("(Untitled)");
1039 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1045 cf->source = g_strdup(source);
1047 cf->source = g_strdup("");
1051 const gchar *cf_get_tempfile_source(capture_file *cf) {
1059 /* XXX - use a macro instead? */
1061 cf_get_packet_count(capture_file *cf)
1066 /* XXX - use a macro instead? */
1068 cf_set_packet_count(capture_file *cf, int packet_count)
1070 cf->count = packet_count;
1073 /* XXX - use a macro instead? */
1075 cf_is_tempfile(capture_file *cf)
1077 return cf->is_tempfile;
1080 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1082 cf->is_tempfile = is_tempfile;
1086 /* XXX - use a macro instead? */
1087 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1089 cf->drops_known = drops_known;
1092 /* XXX - use a macro instead? */
1093 void cf_set_drops(capture_file *cf, guint32 drops)
1098 /* XXX - use a macro instead? */
1099 gboolean cf_get_drops_known(capture_file *cf)
1101 return cf->drops_known;
1104 /* XXX - use a macro instead? */
1105 guint32 cf_get_drops(capture_file *cf)
1110 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1112 cf->rfcode = rfcode;
1116 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1117 epan_dissect_t *edt, dfilter_t *dfcode, column_info *cinfo,
1118 struct wtap_pkthdr *phdr, const guint8 *buf, gboolean add_to_packet_list)
1122 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1123 &cf->ref, cf->prev_dis);
1124 cf->prev_cap = fdata;
1126 if (dfcode != NULL) {
1127 epan_dissect_prime_dfilter(edt, dfcode);
1130 /* Dissect the frame. */
1131 epan_dissect_run_with_taps(edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, buf), fdata, cinfo);
1133 /* If we don't have a display filter, set "passed_dfilter" to 1. */
1134 if (dfcode != NULL) {
1135 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, edt) ? 1 : 0;
1137 if (fdata->flags.passed_dfilter) {
1138 /* This frame passed the display filter but it may depend on other
1139 * (potentially not displayed) frames. Find those frames and mark them
1142 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1145 fdata->flags.passed_dfilter = 1;
1147 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1148 cf->displayed_count++;
1150 if (add_to_packet_list) {
1151 /* We fill the needed columns from new_packet_list */
1152 row = packet_list_append(cinfo, fdata);
1155 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1157 frame_data_set_after_dissect(fdata, &cf->cum_bytes);
1158 cf->prev_dis = fdata;
1160 /* If we haven't yet seen the first frame, this is it.
1162 XXX - we must do this before we add the row to the display,
1163 as, if the display's GtkCList's selection mode is
1164 GTK_SELECTION_BROWSE, when the first entry is added to it,
1165 "cf_select_packet()" will be called, and it will fetch the row
1166 data for the 0th row, and will get a null pointer rather than
1167 "fdata", as "gtk_clist_append()" won't yet have returned and
1168 thus "gtk_clist_set_row_data()" won't yet have been called.
1170 We thus need to leave behind bread crumbs so that
1171 "cf_select_packet()" can find this frame. See the comment
1172 in "cf_select_packet()". */
1173 if (cf->first_displayed == 0)
1174 cf->first_displayed = fdata->num;
1176 /* This is the last frame we've seen so far. */
1177 cf->last_displayed = fdata->num;
1180 epan_dissect_reset(edt);
1184 /* read in a new packet */
1185 /* returns the row of the new packet in the packet list or -1 if not displayed */
1187 read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
1188 column_info *cinfo, gint64 offset)
1190 struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1191 const guint8 *buf = wtap_buf_ptr(cf->wth);
1198 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
1199 it's not already there.
1200 XXX - yes, this is O(N), so if every packet had a different
1201 link-layer encapsulation type, it'd be O(N^2) to read the file, but
1202 there are probably going to be a small number of encapsulation types
1204 cf_add_encapsulation_type(cf, phdr->pkt_encap);
1206 /* The frame number of this packet is one more than the count of
1207 frames in the file so far. */
1208 framenum = cf->count + 1;
1210 frame_data_init(&fdlocal, framenum, phdr, offset, cf->cum_bytes);
1214 epan_dissect_t rf_edt;
1216 epan_dissect_init(&rf_edt, cf->epan, TRUE, FALSE);
1217 epan_dissect_prime_dfilter(&rf_edt, cf->rfcode);
1218 epan_dissect_run(&rf_edt, cf->cd_t, phdr, frame_tvbuff_new(&fdlocal, buf), &fdlocal, NULL);
1219 passed = dfilter_apply_edt(cf->rfcode, &rf_edt);
1220 epan_dissect_cleanup(&rf_edt);
1224 /* This does a shallow copy of fdlocal, which is good enough. */
1225 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1228 if (phdr->opt_comment != NULL)
1229 cf->packet_comment_count++;
1230 cf->f_datalen = offset + fdlocal.cap_len;
1232 if (!cf->redissecting) {
1233 row = add_packet_to_packet_list(fdata, cf, edt, dfcode,
1234 cinfo, phdr, buf, TRUE);
1242 cf_merge_files(char **out_filenamep, int in_file_count,
1243 char *const *in_filenames, int file_type, gboolean do_append)
1245 merge_in_file_t *in_files, *in_file;
1250 int open_err, read_err, write_err, close_err;
1251 gchar *err_info, *write_err_info = NULL;
1254 gboolean got_read_error = FALSE, got_write_error = FALSE;
1256 progdlg_t *progbar = NULL;
1258 gint64 f_len, file_pos;
1260 GTimeVal start_time;
1261 gchar status_str[100];
1262 gint64 progbar_nextstep;
1263 gint64 progbar_quantum;
1264 gchar *display_basename;
1265 int selected_frame_type;
1266 gboolean fake_interface_ids = FALSE;
1268 /* open the input files */
1269 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1270 &open_err, &err_info, &err_fileno)) {
1272 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1277 if (*out_filenamep != NULL) {
1278 out_filename = *out_filenamep;
1279 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1283 out_fd = create_tempfile(&tmpname, "wireshark");
1286 out_filename = g_strdup(tmpname);
1287 *out_filenamep = out_filename;
1291 merge_close_in_files(in_file_count, in_files);
1293 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1297 selected_frame_type = merge_select_frame_type(in_file_count, in_files);
1299 /* If we are trying to merge a number of libpcap files with different encapsulation types
1300 * change the output file type to pcapng and create SHB and IDB:s for the new file use the
1301 * interface index stored in in_files per file to change the phdr before writing the datablock.
1302 * XXX should it be an option to convert to pcapng?
1304 * We need something similar when merging pcapng files possibly with an option to say
1305 * the same interface(s) used in all in files. SHBs comments should be merged together.
1307 if ((selected_frame_type == WTAP_ENCAP_PER_PACKET)&&(file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP)) {
1308 /* Write output in pcapng format */
1309 wtapng_section_t *shb_hdr;
1310 wtapng_iface_descriptions_t *idb_inf, *idb_inf_merge_file;
1311 wtapng_if_descr_t int_data, *file_int_data;
1312 GString *comment_gstr;
1314 fake_interface_ids = TRUE;
1315 /* Create SHB info */
1316 shb_hdr = wtap_file_get_shb_info(in_files[0].wth);
1317 comment_gstr = g_string_new("");
1318 g_string_append_printf(comment_gstr, "%s \n",shb_hdr->opt_comment);
1319 g_string_append_printf(comment_gstr, "File created by merging: \n");
1320 file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
1322 for (i = 0; i < in_file_count; i++) {
1323 g_string_append_printf(comment_gstr, "File%d: %s \n",i+1,in_files[i].filename);
1325 shb_hdr->section_length = -1;
1327 shb_hdr->opt_comment = g_string_free(comment_gstr, FALSE); /* NULL if not available */
1328 shb_hdr->shb_hardware = NULL; /* NULL if not available, UTF-8 string containing the */
1329 /* description of the hardware used to create this section. */
1330 shb_hdr->shb_os = NULL; /* NULL if not available, UTF-8 string containing the name */
1331 /* of the operating system used to create this section. */
1332 shb_hdr->shb_user_appl = g_strdup("Wireshark"); /* NULL if not available, UTF-8 string containing the name */
1333 /* of the application used to create this section. */
1335 /* create fake IDB info */
1336 idb_inf = g_new(wtapng_iface_descriptions_t,1);
1337 /* TODO make this the number of DIFFERENT encapsulation types
1338 * check that snaplength is the same too?
1340 idb_inf->interface_data = g_array_new(FALSE, FALSE, sizeof(wtapng_if_descr_t));
1342 for (i = 0; i < in_file_count; i++) {
1343 idb_inf_merge_file = wtap_file_get_idb_info(in_files[i].wth);
1344 /* read the interface data from the in file to our combined interfca data */
1345 file_int_data = &g_array_index (idb_inf_merge_file->interface_data, wtapng_if_descr_t, 0);
1346 int_data.wtap_encap = file_int_data->wtap_encap;
1347 int_data.time_units_per_second = file_int_data->time_units_per_second;
1348 int_data.link_type = file_int_data->link_type;
1349 int_data.snap_len = file_int_data->snap_len;
1350 int_data.if_name = g_strdup(file_int_data->if_name);
1351 int_data.opt_comment = NULL;
1352 int_data.if_description = NULL;
1353 int_data.if_speed = 0;
1354 int_data.if_tsresol = 6;
1355 int_data.if_filter_str = NULL;
1356 int_data.bpf_filter_len = 0;
1357 int_data.if_filter_bpf_bytes = NULL;
1358 int_data.if_os = NULL;
1359 int_data.if_fcslen = -1;
1360 int_data.num_stat_entries = 0; /* Number of ISB:s */
1361 int_data.interface_statistics = NULL;
1363 g_array_append_val(idb_inf->interface_data, int_data);
1364 g_free(idb_inf_merge_file);
1366 /* Set fake interface Id in per file data */
1367 in_files[i].interface_id = i;
1370 pdh = wtap_dump_fdopen_ng(out_fd, file_type,
1371 selected_frame_type,
1372 merge_max_snapshot_length(in_file_count, in_files),
1373 FALSE /* compressed */, shb_hdr, idb_inf /* wtapng_iface_descriptions_t *idb_inf */, &open_err);
1377 merge_close_in_files(in_file_count, in_files);
1379 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1386 pdh = wtap_dump_fdopen(out_fd, file_type,
1387 selected_frame_type,
1388 merge_max_snapshot_length(in_file_count, in_files),
1389 FALSE /* compressed */, &open_err);
1392 merge_close_in_files(in_file_count, in_files);
1394 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1400 /* Get the sum of the sizes of all the files. */
1402 for (i = 0; i < in_file_count; i++)
1403 f_len += in_files[i].size;
1405 /* Update the progress bar when it gets to this value. */
1406 progbar_nextstep = 0;
1407 /* When we reach the value that triggers a progress bar update,
1408 bump that value by this amount. */
1409 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1410 /* Progress so far. */
1414 g_get_current_time(&start_time);
1416 /* do the merge (or append) */
1419 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1422 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1424 if (in_file == NULL) {
1429 if (read_err != 0) {
1430 /* I/O error reading from in_file */
1431 got_read_error = TRUE;
1435 /* Get the sum of the data offsets in all of the files. */
1437 for (i = 0; i < in_file_count; i++)
1438 data_offset += in_files[i].data_offset;
1440 /* Create the progress bar if necessary.
1441 We check on every iteration of the loop, so that it takes no
1442 longer than the standard time to create it (otherwise, for a
1443 large file, we might take considerably longer than that standard
1444 time in order to get to the next progress bar step). */
1445 if (progbar == NULL) {
1446 progbar = delayed_create_progress_dlg(NULL, "Merging", "files",
1447 FALSE, &stop_flag, &start_time, progbar_val);
1450 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1451 when we update it, we have to run the GTK+ main loop to get it
1452 to repaint what's pending, and doing so may involve an "ioctl()"
1453 to see if there's any pending input from an X server, and doing
1454 that for every packet can be costly, especially on a big file. */
1455 if (data_offset >= progbar_nextstep) {
1456 /* Get the sum of the seek positions in all of the files. */
1458 for (i = 0; i < in_file_count; i++)
1459 file_pos += wtap_read_so_far(in_files[i].wth);
1460 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1461 if (progbar_val > 1.0f) {
1462 /* Some file probably grew while we were reading it.
1463 That "shouldn't happen", so we'll just clip the progress
1467 if (progbar != NULL) {
1468 g_snprintf(status_str, sizeof(status_str),
1469 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1470 file_pos / 1024, f_len / 1024);
1471 update_progress_dlg(progbar, progbar_val, status_str);
1473 progbar_nextstep += progbar_quantum;
1477 /* Well, the user decided to abort the merge. */
1481 /* If we have WTAP_ENCAP_PER_PACKET and the infiles are of type
1482 * WTAP_FILE_TYPE_SUBTYPE_PCAP, we need to set the interface id
1483 * in the paket header = the interface index we used in the IDBs
1484 * interface description for this file(encapsulation type).
1486 if (fake_interface_ids) {
1487 struct wtap_pkthdr *phdr;
1489 phdr = wtap_phdr(in_file->wth);
1490 phdr->interface_id = in_file->interface_id;
1491 phdr->presence_flags = phdr->presence_flags | WTAP_HAS_INTERFACE_ID;
1493 if (!wtap_dump(pdh, wtap_phdr(in_file->wth),
1494 wtap_buf_ptr(in_file->wth), &write_err, &write_err_info)) {
1495 got_write_error = TRUE;
1500 /* We're done merging the files; destroy the progress bar if it was created. */
1501 if (progbar != NULL)
1502 destroy_progress_dlg(progbar);
1504 merge_close_in_files(in_file_count, in_files);
1505 if (!got_write_error) {
1506 if (!wtap_dump_close(pdh, &write_err))
1507 got_write_error = TRUE;
1510 * We already got a write error; no need to report another
1511 * write error on close.
1513 * Don't overwrite the earlier write error.
1515 (void)wtap_dump_close(pdh, &close_err);
1518 if (got_read_error) {
1520 * Find the file on which we got the error, and report the error.
1522 for (i = 0; i < in_file_count; i++) {
1523 if (in_files[i].state == GOT_ERROR) {
1524 /* Put up a message box noting that a read failed somewhere along
1526 display_basename = g_filename_display_basename(in_files[i].filename);
1529 case WTAP_ERR_SHORT_READ:
1530 simple_error_message_box(
1531 "The capture file %s appears to have been cut short"
1532 " in the middle of a packet.", display_basename);
1535 case WTAP_ERR_BAD_FILE:
1536 simple_error_message_box(
1537 "The capture file %s appears to be damaged or corrupt.\n(%s)",
1538 display_basename, err_info);
1542 case WTAP_ERR_DECOMPRESS:
1543 simple_error_message_box(
1544 "The compressed capture file %s appears to be damaged or corrupt.\n"
1545 "(%s)", display_basename,
1546 err_info != NULL ? err_info : "no information supplied");
1551 simple_error_message_box(
1552 "An error occurred while reading the"
1553 " capture file %s: %s.",
1554 display_basename, wtap_strerror(read_err));
1557 g_free(display_basename);
1562 if (got_write_error) {
1563 /* Put up an alert box for the write error. */
1564 if (write_err < 0) {
1565 /* Wiretap error. */
1566 switch (write_err) {
1568 case WTAP_ERR_UNWRITABLE_ENCAP:
1570 * This is a problem with the particular frame we're writing and
1571 * the file type and subtype we're writing; note that, and report
1572 * the frame number and file type/subtype.
1574 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1575 simple_error_message_box(
1576 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1577 in_file ? in_file->packet_num : 0, display_basename,
1578 wtap_file_type_subtype_string(file_type));
1579 g_free(display_basename);
1582 case WTAP_ERR_PACKET_TOO_LARGE:
1584 * This is a problem with the particular frame we're writing and
1585 * the file type and subtype we're writing; note that, and report
1586 * the frame number and file type/subtype.
1588 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1589 simple_error_message_box(
1590 "Frame %u of \"%s\" is too large for a \"%s\" file.",
1591 in_file ? in_file->packet_num : 0, display_basename,
1592 wtap_file_type_subtype_string(file_type));
1593 g_free(display_basename);
1596 case WTAP_ERR_UNWRITABLE_REC_TYPE:
1598 * This is a problem with the particular record we're writing and
1599 * the file type and subtype we're writing; note that, and report
1600 * the record number and file type/subtype.
1602 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1603 simple_error_message_box(
1604 "Record %u of \"%s\" has a record type that can't be saved in a \"%s\" file.",
1605 in_file ? in_file->packet_num : 0, display_basename,
1606 wtap_file_type_subtype_string(file_type));
1607 g_free(display_basename);
1610 case WTAP_ERR_UNWRITABLE_REC_DATA:
1612 * This is a problem with the particular record we're writing and
1613 * the file type and subtype we're writing; note that, and report
1614 * the frame number and file type/subtype.
1616 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1617 simple_error_message_box(
1618 "Record %u of \"%s\" has data that can't be saved in a \"%s\" file.\n(%s)",
1619 in_file ? in_file->packet_num : 0, display_basename,
1620 wtap_file_type_subtype_string(file_type),
1621 write_err_info != NULL ? write_err_info : "no information supplied");
1622 g_free(write_err_info);
1623 g_free(display_basename);
1627 display_basename = g_filename_display_basename(out_filename);
1628 simple_error_message_box(
1629 "An error occurred while writing to the file \"%s\": %s.",
1630 out_filename, wtap_strerror(write_err));
1631 g_free(display_basename);
1636 write_failure_alert_box(out_filename, write_err);
1640 if (got_read_error || got_write_error || stop_flag) {
1641 /* Callers aren't expected to treat an error or an explicit abort
1642 differently - we put up error dialogs ourselves, so they don't
1650 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1652 const char *filter_new = dftext ? dftext : "";
1653 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1656 GTimeVal start_time;
1658 /* if new filter equals old one, do nothing unless told to do so */
1659 if (!force && strcmp(filter_new, filter_old) == 0) {
1665 if (dftext == NULL) {
1666 /* The new filter is an empty filter (i.e., display all packets).
1667 * so leave dfcode==NULL
1671 * We have a filter; make a copy of it (as we'll be saving it),
1672 * and try to compile it.
1674 dftext = g_strdup(dftext);
1675 if (!dfilter_compile(dftext, &dfcode, &err_msg)) {
1676 /* The attempt failed; report an error. */
1677 simple_message_box(ESD_TYPE_ERROR, NULL,
1678 "See the help for a description of the display filter syntax.",
1679 "\"%s\" isn't a valid display filter: %s",
1687 if (dfcode == NULL) {
1688 /* Yes - free the filter text, and set it to null. */
1694 /* We have a valid filter. Replace the current filter. */
1695 g_free(cf->dfilter);
1696 cf->dfilter = dftext;
1697 g_get_current_time(&start_time);
1700 /* Now rescan the packet list, applying the new filter, but not
1701 throwing away information constructed on a previous pass. */
1702 if (dftext == NULL) {
1703 rescan_packets(cf, "Resetting", "Filter", FALSE);
1705 rescan_packets(cf, "Filtering", dftext, FALSE);
1708 /* Cleanup and release all dfilter resources */
1709 dfilter_free(dfcode);
1715 cf_reftime_packets(capture_file *cf)
1717 ref_time_packets(cf);
1721 cf_redissect_packets(capture_file *cf)
1723 if (cf->state != FILE_CLOSED) {
1724 rescan_packets(cf, "Reprocessing", "all packets", TRUE);
1729 cf_read_record_r(capture_file *cf, const frame_data *fdata,
1730 struct wtap_pkthdr *phdr, Buffer *buf)
1734 gchar *display_basename;
1736 #ifdef WANT_PACKET_EDITOR
1737 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1738 if (G_UNLIKELY(fdata->file_off == -1)) {
1739 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1742 simple_error_message_box("fdata->file_off == -1, but can't find modified frame.");
1746 *phdr = frame->phdr;
1747 ws_buffer_assure_space(buf, frame->phdr.caplen);
1748 memcpy(ws_buffer_start_ptr(buf), frame->pd, frame->phdr.caplen);
1753 if (!wtap_seek_read(cf->wth, fdata->file_off, phdr, buf, &err, &err_info)) {
1754 display_basename = g_filename_display_basename(cf->filename);
1757 case WTAP_ERR_BAD_FILE:
1758 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1759 display_basename, wtap_strerror(err),
1760 err_info != NULL ? err_info : "no information supplied");
1765 simple_error_message_box(
1766 "An error occurred while reading from the file \"%s\": %s.",
1767 display_basename, wtap_strerror(err));
1770 g_free(display_basename);
1777 cf_read_record(capture_file *cf, frame_data *fdata)
1779 return cf_read_record_r(cf, fdata, &cf->phdr, &cf->buf);
1782 /* Rescan the list of packets, reconstructing the CList.
1784 "action" describes why we're doing this; it's used in the progress
1787 "action_item" describes what we're doing; it's used in the progress
1790 "redissect" is TRUE if we need to make the dissectors reconstruct
1791 any state information they have (because a preference that affects
1792 some dissector has changed, meaning some dissector might construct
1793 its state differently from the way it was constructed the last time). */
1795 rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect)
1797 /* Rescan packets new packet list */
1800 progdlg_t *progbar = NULL;
1803 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1804 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1805 gboolean selected_frame_seen;
1807 GTimeVal start_time;
1808 gchar status_str[100];
1809 int progbar_nextstep;
1810 int progbar_quantum;
1814 gboolean create_proto_tree;
1816 gboolean add_to_packet_list = FALSE;
1818 guint32 frames_count;
1820 /* Compile the current display filter.
1821 * We assume this will not fail since cf->dfilter is only set in
1822 * cf_filter IFF the filter was valid.
1824 compiled = dfilter_compile(cf->dfilter, &dfcode, NULL);
1825 g_assert(!cf->dfilter || (compiled && dfcode));
1827 /* Get the union of the flags for all tap listeners. */
1828 tap_flags = union_of_tap_listener_flags();
1829 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1831 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
1833 reset_tap_listeners();
1834 /* Which frame, if any, is the currently selected frame?
1835 XXX - should the selected frame or the focus frame be the "current"
1836 frame, that frame being the one from which "Find Frame" searches
1838 selected_frame = cf->current_frame;
1840 /* Mark frame num as not found */
1841 selected_frame_num = -1;
1843 /* Freeze the packet list while we redo it, so we don't get any
1844 screen updates while it happens. */
1845 packet_list_freeze();
1848 /* We need to re-initialize all the state information that protocols
1849 keep, because some preference that controls a dissector has changed,
1850 which might cause the state information to be constructed differently
1851 by that dissector. */
1853 /* We might receive new packets while redissecting, and we don't
1854 want to dissect those before their time. */
1855 cf->redissecting = TRUE;
1857 /* 'reset' dissection session */
1858 epan_free(cf->epan);
1859 cf->epan = ws_epan_new(cf);
1860 cf->cinfo.epan = cf->epan;
1862 /* We need to redissect the packets so we have to discard our old
1863 * packet list store. */
1864 packet_list_clear();
1865 add_to_packet_list = TRUE;
1868 /* We don't yet know which will be the first and last frames displayed. */
1869 cf->first_displayed = 0;
1870 cf->last_displayed = 0;
1872 /* We currently don't display any packets */
1873 cf->displayed_count = 0;
1875 /* Iterate through the list of frames. Call a routine for each frame
1876 to check whether it should be displayed and, if so, add it to
1877 the display list. */
1879 cf->prev_dis = NULL;
1880 cf->prev_cap = NULL;
1883 /* Update the progress bar when it gets to this value. */
1884 progbar_nextstep = 0;
1885 /* When we reach the value that triggers a progress bar update,
1886 bump that value by this amount. */
1887 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1888 /* Count of packets at which we've looked. */
1890 /* Progress so far. */
1894 g_get_current_time(&start_time);
1896 /* no previous row yet */
1897 prev_frame_num = -1;
1900 preceding_frame_num = -1;
1901 preceding_frame = NULL;
1902 following_frame_num = -1;
1903 following_frame = NULL;
1905 selected_frame_seen = FALSE;
1907 frames_count = cf->count;
1909 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
1911 for (framenum = 1; framenum <= frames_count; framenum++) {
1912 fdata = frame_data_sequence_find(cf->frames, framenum);
1914 /* Create the progress bar if necessary.
1915 We check on every iteration of the loop, so that it takes no
1916 longer than the standard time to create it (otherwise, for a
1917 large file, we might take considerably longer than that standard
1918 time in order to get to the next progress bar step). */
1919 if (progbar == NULL)
1920 progbar = delayed_create_progress_dlg(cf->window, action, action_item, TRUE,
1921 &stop_flag, &start_time,
1924 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1925 when we update it, we have to run the GTK+ main loop to get it
1926 to repaint what's pending, and doing so may involve an "ioctl()"
1927 to see if there's any pending input from an X server, and doing
1928 that for every packet can be costly, especially on a big file. */
1929 if (count >= progbar_nextstep) {
1930 /* let's not divide by zero. I should never be started
1931 * with count == 0, so let's assert that
1933 g_assert(cf->count > 0);
1934 progbar_val = (gfloat) count / frames_count;
1936 if (progbar != NULL) {
1937 g_snprintf(status_str, sizeof(status_str),
1938 "%4u of %u frames", count, frames_count);
1939 update_progress_dlg(progbar, progbar_val, status_str);
1942 progbar_nextstep += progbar_quantum;
1946 /* Well, the user decided to abort the filtering. Just stop.
1948 XXX - go back to the previous filter? Users probably just
1949 want not to wait for a filtering operation to finish;
1950 unless we cancel by having no filter, reverting to the
1951 previous filter will probably be even more expensive than
1952 continuing the filtering, as it involves going back to the
1953 beginning and filtering, and even with no filter we currently
1954 have to re-generate the entire clist, which is also expensive.
1956 I'm not sure what Network Monitor does, but it doesn't appear
1957 to give you an unfiltered display if you cancel. */
1964 /* Since all state for the frame was destroyed, mark the frame
1965 * as not visited, free the GSList referring to the state
1966 * data (the per-frame data itself was freed by
1967 * "init_dissection()"), and null out the GSList pointer. */
1968 frame_data_reset(fdata);
1969 frames_count = cf->count;
1972 /* Frame dependencies from the previous dissection/filtering are no longer valid. */
1973 fdata->flags.dependent_of_displayed = 0;
1975 if (!cf_read_record(cf, fdata))
1976 break; /* error reading the frame */
1978 /* If the previous frame is displayed, and we haven't yet seen the
1979 selected frame, remember that frame - it's the closest one we've
1980 yet seen before the selected frame. */
1981 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1982 preceding_frame_num = prev_frame_num;
1983 preceding_frame = prev_frame;
1986 add_packet_to_packet_list(fdata, cf, &edt, dfcode,
1988 ws_buffer_start_ptr(&cf->buf),
1989 add_to_packet_list);
1991 /* If this frame is displayed, and this is the first frame we've
1992 seen displayed after the selected frame, remember this frame -
1993 it's the closest one we've yet seen at or after the selected
1995 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
1996 following_frame_num = fdata->num;
1997 following_frame = fdata;
1999 if (fdata == selected_frame) {
2000 selected_frame_seen = TRUE;
2001 if (fdata->flags.passed_dfilter)
2002 selected_frame_num = fdata->num;
2005 /* Remember this frame - it'll be the previous frame
2006 on the next pass through the loop. */
2007 prev_frame_num = fdata->num;
2011 epan_dissect_cleanup(&edt);
2013 /* We are done redissecting the packet list. */
2014 cf->redissecting = FALSE;
2017 frames_count = cf->count;
2018 /* Clear out what remains of the visited flags and per-frame data
2021 XXX - that may cause various forms of bogosity when dissecting
2022 these frames, as they won't have been seen by this sequential
2023 pass, but the only alternative I see is to keep scanning them
2024 even though the user requested that the scan stop, and that
2025 would leave the user stuck with an Wireshark grinding on
2026 until it finishes. Should we just stick them with that? */
2027 for (; framenum <= frames_count; framenum++) {
2028 fdata = frame_data_sequence_find(cf->frames, framenum);
2029 frame_data_reset(fdata);
2033 /* We're done filtering the packets; destroy the progress bar if it
2035 if (progbar != NULL)
2036 destroy_progress_dlg(progbar);
2038 /* Unfreeze the packet list. */
2039 if (!add_to_packet_list)
2040 packet_list_recreate_visible_rows();
2042 /* Compute the time it took to filter the file */
2043 compute_elapsed(cf, &start_time);
2047 if (selected_frame_num == -1) {
2048 /* The selected frame didn't pass the filter. */
2049 if (selected_frame == NULL) {
2050 /* That's because there *was* no selected frame. Make the first
2051 displayed frame the current frame. */
2052 selected_frame_num = 0;
2054 /* Find the nearest displayed frame to the selected frame (whether
2055 it's before or after that frame) and make that the current frame.
2056 If the next and previous displayed frames are equidistant from the
2057 selected frame, choose the next one. */
2058 g_assert(following_frame == NULL ||
2059 following_frame->num >= selected_frame->num);
2060 g_assert(preceding_frame == NULL ||
2061 preceding_frame->num <= selected_frame->num);
2062 if (following_frame == NULL) {
2063 /* No frame after the selected frame passed the filter, so we
2064 have to select the last displayed frame before the selected
2066 selected_frame_num = preceding_frame_num;
2067 selected_frame = preceding_frame;
2068 } else if (preceding_frame == NULL) {
2069 /* No frame before the selected frame passed the filter, so we
2070 have to select the first displayed frame after the selected
2072 selected_frame_num = following_frame_num;
2073 selected_frame = following_frame;
2075 /* Frames before and after the selected frame passed the filter, so
2076 we'll select the previous frame */
2077 selected_frame_num = preceding_frame_num;
2078 selected_frame = preceding_frame;
2083 if (selected_frame_num == -1) {
2084 /* There are no frames displayed at all. */
2085 cf_unselect_packet(cf);
2087 /* Either the frame that was selected passed the filter, or we've
2088 found the nearest displayed frame to that frame. Select it, make
2089 it the focus row, and make it visible. */
2090 /* Set to invalid to force update of packet list and packet details */
2091 cf->current_row = -1;
2092 if (selected_frame_num == 0) {
2093 packet_list_select_first_row();
2095 if (!packet_list_select_row_from_data(selected_frame)) {
2096 /* We didn't find a row corresponding to this frame.
2097 This means that the frame isn't being displayed currently,
2098 so we can't select it. */
2099 simple_message_box(ESD_TYPE_INFO, NULL,
2100 "The capture file is probably not fully dissected.",
2101 "End of capture exceeded.");
2106 /* Cleanup and release all dfilter resources */
2107 dfilter_free(dfcode);
2112 * Scan trough all frame data and recalculate the ref time
2113 * without rereading the file.
2114 * XXX - do we need a progres bar or is this fast enough?
2117 ref_time_packets(capture_file *cf)
2124 cf->prev_dis = NULL;
2127 for (framenum = 1; framenum <= cf->count; framenum++) {
2128 fdata = frame_data_sequence_find(cf->frames, framenum);
2130 /* just add some value here until we know if it is being displayed or not */
2131 fdata->cum_bytes = cf->cum_bytes + fdata->pkt_len;
2137 /* If we don't have the time stamp of the first packet in the
2138 capture, it's because this is the first packet. Save the time
2139 stamp of this packet as the time stamp of the first packet. */
2140 if (cf->ref == NULL)
2142 /* if this frames is marked as a reference time frame, reset
2143 firstsec and firstusec to this frame */
2144 if (fdata->flags.ref_time)
2147 /* If we don't have the time stamp of the previous displayed packet,
2148 it's because this is the first displayed packet. Save the time
2149 stamp of this packet as the time stamp of the previous displayed
2151 if (cf->prev_dis == NULL) {
2152 cf->prev_dis = fdata;
2155 /* Get the time elapsed between the first packet and this packet. */
2156 fdata->frame_ref_num = (fdata != cf->ref) ? cf->ref->num : 0;
2157 nstime_delta(&rel_ts, &fdata->abs_ts, &cf->ref->abs_ts);
2159 /* If it's greater than the current elapsed time, set the elapsed time
2160 to it (we check for "greater than" so as not to be confused by
2161 time moving backwards). */
2162 if ((gint32)cf->elapsed_time.secs < rel_ts.secs
2163 || ((gint32)cf->elapsed_time.secs == rel_ts.secs && (gint32)cf->elapsed_time.nsecs < rel_ts.nsecs)) {
2164 cf->elapsed_time = rel_ts;
2167 /* If this frame is displayed, get the time elapsed between the
2168 previous displayed packet and this packet. */
2169 if ( fdata->flags.passed_dfilter ) {
2170 fdata->prev_dis_num = cf->prev_dis->num;
2171 cf->prev_dis = fdata;
2177 if ( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ) {
2178 /* This frame either passed the display filter list or is marked as
2179 a time reference frame. All time reference frames are displayed
2180 even if they don't pass the display filter */
2181 if (fdata->flags.ref_time) {
2182 /* if this was a TIME REF frame we should reset the cum_bytes field */
2183 cf->cum_bytes = fdata->pkt_len;
2184 fdata->cum_bytes = cf->cum_bytes;
2186 /* increase cum_bytes with this packets length */
2187 cf->cum_bytes += fdata->pkt_len;
2200 process_specified_records(capture_file *cf, packet_range_t *range,
2201 const char *string1, const char *string2, gboolean terminate_is_stop,
2202 gboolean (*callback)(capture_file *, frame_data *,
2203 struct wtap_pkthdr *, const guint8 *, void *),
2204 void *callback_args)
2209 psp_return_t ret = PSP_FINISHED;
2211 progdlg_t *progbar = NULL;
2214 gboolean progbar_stop_flag;
2215 GTimeVal progbar_start_time;
2216 gchar progbar_status_str[100];
2217 int progbar_nextstep;
2218 int progbar_quantum;
2219 range_process_e process_this;
2220 struct wtap_pkthdr phdr;
2222 wtap_phdr_init(&phdr);
2223 ws_buffer_init(&buf, 1500);
2225 /* Update the progress bar when it gets to this value. */
2226 progbar_nextstep = 0;
2227 /* When we reach the value that triggers a progress bar update,
2228 bump that value by this amount. */
2229 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2230 /* Count of packets at which we've looked. */
2232 /* Progress so far. */
2235 progbar_stop_flag = FALSE;
2236 g_get_current_time(&progbar_start_time);
2239 packet_range_process_init(range);
2241 /* Iterate through all the packets, printing the packets that
2242 were selected by the current display filter. */
2243 for (framenum = 1; framenum <= cf->count; framenum++) {
2244 fdata = frame_data_sequence_find(cf->frames, framenum);
2246 /* Create the progress bar if necessary.
2247 We check on every iteration of the loop, so that it takes no
2248 longer than the standard time to create it (otherwise, for a
2249 large file, we might take considerably longer than that standard
2250 time in order to get to the next progress bar step). */
2251 if (progbar == NULL)
2252 progbar = delayed_create_progress_dlg(cf->window, string1, string2,
2255 &progbar_start_time,
2258 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2259 when we update it, we have to run the GTK+ main loop to get it
2260 to repaint what's pending, and doing so may involve an "ioctl()"
2261 to see if there's any pending input from an X server, and doing
2262 that for every packet can be costly, especially on a big file. */
2263 if (progbar_count >= progbar_nextstep) {
2264 /* let's not divide by zero. I should never be started
2265 * with count == 0, so let's assert that
2267 g_assert(cf->count > 0);
2268 progbar_val = (gfloat) progbar_count / cf->count;
2270 if (progbar != NULL) {
2271 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2272 "%4u of %u packets", progbar_count, cf->count);
2273 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2276 progbar_nextstep += progbar_quantum;
2279 if (progbar_stop_flag) {
2280 /* Well, the user decided to abort the operation. Just stop,
2281 and arrange to return PSP_STOPPED to our caller, so they know
2282 it was stopped explicitly. */
2289 if (range != NULL) {
2290 /* do we have to process this packet? */
2291 process_this = packet_range_process_packet(range, fdata);
2292 if (process_this == range_process_next) {
2293 /* this packet uninteresting, continue with next one */
2295 } else if (process_this == range_processing_finished) {
2296 /* all interesting packets processed, stop the loop */
2301 /* Get the packet */
2302 if (!cf_read_record_r(cf, fdata, &phdr, &buf)) {
2303 /* Attempt to get the packet failed. */
2307 /* Process the packet */
2308 if (!callback(cf, fdata, &phdr, ws_buffer_start_ptr(&buf), callback_args)) {
2309 /* Callback failed. We assume it reported the error appropriately. */
2315 /* We're done printing the packets; destroy the progress bar if
2317 if (progbar != NULL)
2318 destroy_progress_dlg(progbar);
2320 wtap_phdr_cleanup(&phdr);
2321 ws_buffer_free(&buf);
2329 } retap_callback_args_t;
2332 retap_packet(capture_file *cf, frame_data *fdata,
2333 struct wtap_pkthdr *phdr, const guint8 *pd,
2336 retap_callback_args_t *args = (retap_callback_args_t *)argsp;
2338 epan_dissect_run_with_taps(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, args->cinfo);
2339 epan_dissect_reset(&args->edt);
2345 cf_retap_packets(capture_file *cf)
2347 packet_range_t range;
2348 retap_callback_args_t callback_args;
2349 gboolean construct_protocol_tree;
2350 gboolean filtering_tap_listeners;
2354 /* Presumably the user closed the capture file. */
2356 return CF_READ_ABORTED;
2359 /* Do we have any tap listeners with filters? */
2360 filtering_tap_listeners = have_filtering_tap_listeners();
2362 tap_flags = union_of_tap_listener_flags();
2364 /* If any tap listeners have filters, or require the protocol tree,
2365 construct the protocol tree. */
2366 construct_protocol_tree = filtering_tap_listeners ||
2367 (tap_flags & TL_REQUIRES_PROTO_TREE);
2369 /* If any tap listeners require the columns, construct them. */
2370 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2372 /* Reset the tap listeners. */
2373 reset_tap_listeners();
2375 epan_dissect_init(&callback_args.edt, cf->epan, construct_protocol_tree, FALSE);
2377 /* Iterate through the list of packets, dissecting all packets and
2378 re-running the taps. */
2379 packet_range_init(&range, cf);
2380 packet_range_process_init(&range);
2382 ret = process_specified_records(cf, &range, "Recalculating statistics on",
2383 "all packets", TRUE, retap_packet,
2386 epan_dissect_cleanup(&callback_args.edt);
2390 /* Completed successfully. */
2394 /* Well, the user decided to abort the refiltering.
2395 Return CF_READ_ABORTED so our caller knows they did that. */
2396 return CF_READ_ABORTED;
2399 /* Error while retapping. */
2400 return CF_READ_ERROR;
2403 g_assert_not_reached();
2408 print_args_t *print_args;
2409 gboolean print_header_line;
2410 char *header_line_buf;
2411 int header_line_buf_len;
2412 gboolean print_formfeed;
2413 gboolean print_separator;
2417 int num_visible_cols;
2420 } print_callback_args_t;
2423 print_packet(capture_file *cf, frame_data *fdata,
2424 struct wtap_pkthdr *phdr, const guint8 *pd,
2427 print_callback_args_t *args = (print_callback_args_t *)argsp;
2433 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2434 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2436 /* Fill in the column information if we're printing the summary
2438 if (args->print_args->print_summary) {
2439 col_custom_prime_edt(&args->edt, &cf->cinfo);
2440 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2441 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2443 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2445 if (args->print_formfeed) {
2446 if (!new_page(args->print_args->stream))
2449 if (args->print_separator) {
2450 if (!print_line(args->print_args->stream, 0, ""))
2456 * We generate bookmarks, if the output format supports them.
2457 * The name is "__frameN__".
2459 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2461 if (args->print_args->print_summary) {
2462 if (!args->print_args->print_col_headings)
2463 args->print_header_line = FALSE;
2464 if (args->print_header_line) {
2465 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2467 args->print_header_line = FALSE; /* we might not need to print any more */
2469 cp = &args->line_buf[0];
2471 for (i = 0; i < args->num_visible_cols; i++) {
2472 /* Find the length of the string for this column. */
2473 column_len = (int) strlen(cf->cinfo.col_data[args->visible_cols[i]]);
2474 if (args->col_widths[i] > column_len)
2475 column_len = args->col_widths[i];
2477 /* Make sure there's room in the line buffer for the column; if not,
2478 double its length. */
2479 line_len += column_len + 1; /* "+1" for space */
2480 if (line_len > args->line_buf_len) {
2481 cp_off = (int) (cp - args->line_buf);
2482 args->line_buf_len = 2 * line_len;
2483 args->line_buf = (char *)g_realloc(args->line_buf, args->line_buf_len + 1);
2484 cp = args->line_buf + cp_off;
2487 /* Right-justify the packet number column. */
2488 if (cf->cinfo.col_fmt[args->visible_cols[i]] == COL_NUMBER)
2489 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2491 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2493 if (i != args->num_visible_cols - 1)
2499 * Generate a bookmark, using the summary line as the title.
2501 if (!print_bookmark(args->print_args->stream, bookmark_name,
2505 if (!print_line(args->print_args->stream, 0, args->line_buf))
2509 * Generate a bookmark, using "Frame N" as the title, as we're not
2510 * printing the summary line.
2512 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2513 if (!print_bookmark(args->print_args->stream, bookmark_name,
2516 } /* if (print_summary) */
2518 if (args->print_args->print_dissections != print_dissections_none) {
2519 if (args->print_args->print_summary) {
2520 /* Separate the summary line from the tree with a blank line. */
2521 if (!print_line(args->print_args->stream, 0, ""))
2525 /* Print the information in that tree. */
2526 if (!proto_tree_print(args->print_args, &args->edt, NULL, args->print_args->stream))
2529 /* Print a blank line if we print anything after this (aka more than one packet). */
2530 args->print_separator = TRUE;
2532 /* Print a header line if we print any more packet summaries */
2533 if (args->print_args->print_col_headings)
2534 args->print_header_line = TRUE;
2537 if (args->print_args->print_hex) {
2538 if (args->print_args->print_summary || (args->print_args->print_dissections != print_dissections_none)) {
2539 if (!print_line(args->print_args->stream, 0, ""))
2542 /* Print the full packet data as hex. */
2543 if (!print_hex_data(args->print_args->stream, &args->edt))
2546 /* Print a blank line if we print anything after this (aka more than one packet). */
2547 args->print_separator = TRUE;
2549 /* Print a header line if we print any more packet summaries */
2550 if (args->print_args->print_col_headings)
2551 args->print_header_line = TRUE;
2552 } /* if (args->print_args->print_dissections != print_dissections_none) */
2554 epan_dissect_reset(&args->edt);
2556 /* do we want to have a formfeed between each packet from now on? */
2557 if (args->print_args->print_formfeed) {
2558 args->print_formfeed = TRUE;
2564 epan_dissect_reset(&args->edt);
2569 cf_print_packets(capture_file *cf, print_args_t *print_args)
2571 print_callback_args_t callback_args;
2574 int i, cp_off, column_len, line_len;
2575 int num_visible_col = 0, last_visible_col = 0, visible_col_count;
2579 gboolean proto_tree_needed;
2581 callback_args.print_args = print_args;
2582 callback_args.print_header_line = print_args->print_col_headings;
2583 callback_args.header_line_buf = NULL;
2584 callback_args.header_line_buf_len = 256;
2585 callback_args.print_formfeed = FALSE;
2586 callback_args.print_separator = FALSE;
2587 callback_args.line_buf = NULL;
2588 callback_args.line_buf_len = 256;
2589 callback_args.col_widths = NULL;
2590 callback_args.num_visible_cols = 0;
2591 callback_args.visible_cols = NULL;
2593 if (!print_preamble(print_args->stream, cf->filename, get_ws_vcs_version_info())) {
2594 destroy_print_stream(print_args->stream);
2595 return CF_PRINT_WRITE_ERROR;
2598 if (print_args->print_summary) {
2599 /* We're printing packet summaries. Allocate the header line buffer
2600 and get the column widths. */
2601 callback_args.header_line_buf = (char *)g_malloc(callback_args.header_line_buf_len + 1);
2603 /* Find the number of visible columns and the last visible column */
2604 for (i = 0; i < prefs.num_cols; i++) {
2606 clp = g_list_nth(prefs.col_list, i);
2607 if (clp == NULL) /* Sanity check, Invalid column requested */
2610 cfmt = (fmt_data *) clp->data;
2611 if (cfmt->visible) {
2613 last_visible_col = i;
2617 /* Find the widths for each of the columns - maximum of the
2618 width of the title and the width of the data - and construct
2619 a buffer with a line containing the column titles. */
2620 callback_args.num_visible_cols = num_visible_col;
2621 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2622 callback_args.visible_cols = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2623 cp = &callback_args.header_line_buf[0];
2625 visible_col_count = 0;
2626 for (i = 0; i < cf->cinfo.num_cols; i++) {
2628 clp = g_list_nth(prefs.col_list, i);
2629 if (clp == NULL) /* Sanity check, Invalid column requested */
2632 cfmt = (fmt_data *) clp->data;
2633 if (cfmt->visible == FALSE)
2636 /* Save the order of visible columns */
2637 callback_args.visible_cols[visible_col_count] = i;
2639 /* Don't pad the last column. */
2640 if (i == last_visible_col)
2641 callback_args.col_widths[visible_col_count] = 0;
2643 callback_args.col_widths[visible_col_count] = (gint) strlen(cf->cinfo.col_title[i]);
2644 data_width = get_column_char_width(get_column_format(i));
2645 if (data_width > callback_args.col_widths[visible_col_count])
2646 callback_args.col_widths[visible_col_count] = data_width;
2649 /* Find the length of the string for this column. */
2650 column_len = (int) strlen(cf->cinfo.col_title[i]);
2651 if (callback_args.col_widths[i] > column_len)
2652 column_len = callback_args.col_widths[visible_col_count];
2654 /* Make sure there's room in the line buffer for the column; if not,
2655 double its length. */
2656 line_len += column_len + 1; /* "+1" for space */
2657 if (line_len > callback_args.header_line_buf_len) {
2658 cp_off = (int) (cp - callback_args.header_line_buf);
2659 callback_args.header_line_buf_len = 2 * line_len;
2660 callback_args.header_line_buf = (char *)g_realloc(callback_args.header_line_buf,
2661 callback_args.header_line_buf_len + 1);
2662 cp = callback_args.header_line_buf + cp_off;
2665 /* Right-justify the packet number column. */
2666 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2667 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2669 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2671 if (i != cf->cinfo.num_cols - 1)
2674 visible_col_count++;
2678 /* Now start out the main line buffer with the same length as the
2679 header line buffer. */
2680 callback_args.line_buf_len = callback_args.header_line_buf_len;
2681 callback_args.line_buf = (char *)g_malloc(callback_args.line_buf_len + 1);
2682 } /* if (print_summary) */
2684 /* Create the protocol tree, and make it visible, if we're printing
2685 the dissection or the hex data.
2686 XXX - do we need it if we're just printing the hex data? */
2688 callback_args.print_args->print_dissections != print_dissections_none ||
2689 callback_args.print_args->print_hex ||
2690 have_custom_cols(&cf->cinfo);
2691 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2693 /* Iterate through the list of packets, printing the packets we were
2695 ret = process_specified_records(cf, &print_args->range, "Printing",
2696 "selected packets", TRUE, print_packet,
2698 epan_dissect_cleanup(&callback_args.edt);
2699 g_free(callback_args.header_line_buf);
2700 g_free(callback_args.line_buf);
2701 g_free(callback_args.col_widths);
2702 g_free(callback_args.visible_cols);
2707 /* Completed successfully. */
2711 /* Well, the user decided to abort the printing.
2713 XXX - note that what got generated before they did that
2714 will get printed if we're piping to a print program; we'd
2715 have to write to a file and then hand that to the print
2716 program to make it actually not print anything. */
2720 /* Error while printing.
2722 XXX - note that what got generated before they did that
2723 will get printed if we're piping to a print program; we'd
2724 have to write to a file and then hand that to the print
2725 program to make it actually not print anything. */
2726 destroy_print_stream(print_args->stream);
2727 return CF_PRINT_WRITE_ERROR;
2730 if (!print_finale(print_args->stream)) {
2731 destroy_print_stream(print_args->stream);
2732 return CF_PRINT_WRITE_ERROR;
2735 if (!destroy_print_stream(print_args->stream))
2736 return CF_PRINT_WRITE_ERROR;
2744 } write_packet_callback_args_t;
2747 write_pdml_packet(capture_file *cf, frame_data *fdata,
2748 struct wtap_pkthdr *phdr, const guint8 *pd,
2751 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2753 /* Create the protocol tree, but don't fill in the column information. */
2754 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2756 /* Write out the information in that tree. */
2757 write_pdml_proto_tree(&args->edt, args->fh);
2759 epan_dissect_reset(&args->edt);
2761 return !ferror(args->fh);
2765 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2767 write_packet_callback_args_t callback_args;
2771 fh = ws_fopen(print_args->file, "w");
2773 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2775 write_pdml_preamble(fh, cf->filename);
2778 return CF_PRINT_WRITE_ERROR;
2781 callback_args.fh = fh;
2782 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2784 /* Iterate through the list of packets, printing the packets we were
2786 ret = process_specified_records(cf, &print_args->range, "Writing PDML",
2787 "selected packets", TRUE,
2788 write_pdml_packet, &callback_args);
2790 epan_dissect_cleanup(&callback_args.edt);
2795 /* Completed successfully. */
2799 /* Well, the user decided to abort the printing. */
2803 /* Error while printing. */
2805 return CF_PRINT_WRITE_ERROR;
2808 write_pdml_finale(fh);
2811 return CF_PRINT_WRITE_ERROR;
2814 /* XXX - check for an error */
2821 write_psml_packet(capture_file *cf, frame_data *fdata,
2822 struct wtap_pkthdr *phdr, const guint8 *pd,
2825 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2827 /* Fill in the column information */
2828 col_custom_prime_edt(&args->edt, &cf->cinfo);
2829 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2830 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2832 /* Write out the column information. */
2833 write_psml_columns(&args->edt, args->fh);
2835 epan_dissect_reset(&args->edt);
2837 return !ferror(args->fh);
2841 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2843 write_packet_callback_args_t callback_args;
2847 gboolean proto_tree_needed;
2849 fh = ws_fopen(print_args->file, "w");
2851 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2853 write_psml_preamble(&cf->cinfo, fh);
2856 return CF_PRINT_WRITE_ERROR;
2859 callback_args.fh = fh;
2861 /* Fill in the column information, only create the protocol tree
2862 if having custom columns. */
2863 proto_tree_needed = have_custom_cols(&cf->cinfo);
2864 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2866 /* Iterate through the list of packets, printing the packets we were
2868 ret = process_specified_records(cf, &print_args->range, "Writing PSML",
2869 "selected packets", TRUE,
2870 write_psml_packet, &callback_args);
2872 epan_dissect_cleanup(&callback_args.edt);
2877 /* Completed successfully. */
2881 /* Well, the user decided to abort the printing. */
2885 /* Error while printing. */
2887 return CF_PRINT_WRITE_ERROR;
2890 write_psml_finale(fh);
2893 return CF_PRINT_WRITE_ERROR;
2896 /* XXX - check for an error */
2903 write_csv_packet(capture_file *cf, frame_data *fdata,
2904 struct wtap_pkthdr *phdr, const guint8 *pd,
2907 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2909 /* Fill in the column information */
2910 col_custom_prime_edt(&args->edt, &cf->cinfo);
2911 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2912 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2914 /* Write out the column information. */
2915 write_csv_columns(&args->edt, args->fh);
2917 epan_dissect_reset(&args->edt);
2919 return !ferror(args->fh);
2923 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2925 write_packet_callback_args_t callback_args;
2926 gboolean proto_tree_needed;
2930 fh = ws_fopen(print_args->file, "w");
2932 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2934 write_csv_column_titles(&cf->cinfo, fh);
2937 return CF_PRINT_WRITE_ERROR;
2940 callback_args.fh = fh;
2942 /* only create the protocol tree if having custom columns. */
2943 proto_tree_needed = have_custom_cols(&cf->cinfo);
2944 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2946 /* Iterate through the list of packets, printing the packets we were
2948 ret = process_specified_records(cf, &print_args->range, "Writing CSV",
2949 "selected packets", TRUE,
2950 write_csv_packet, &callback_args);
2952 epan_dissect_cleanup(&callback_args.edt);
2957 /* Completed successfully. */
2961 /* Well, the user decided to abort the printing. */
2965 /* Error while printing. */
2967 return CF_PRINT_WRITE_ERROR;
2970 /* XXX - check for an error */
2977 carrays_write_packet(capture_file *cf, frame_data *fdata,
2978 struct wtap_pkthdr *phdr,
2979 const guint8 *pd, void *argsp)
2981 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2983 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2984 write_carrays_hex_data(fdata->num, args->fh, &args->edt);
2985 epan_dissect_reset(&args->edt);
2987 return !ferror(args->fh);
2991 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
2993 write_packet_callback_args_t callback_args;
2997 fh = ws_fopen(print_args->file, "w");
3000 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3004 return CF_PRINT_WRITE_ERROR;
3007 callback_args.fh = fh;
3008 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
3010 /* Iterate through the list of packets, printing the packets we were
3012 ret = process_specified_records(cf, &print_args->range,
3014 "selected packets", TRUE,
3015 carrays_write_packet, &callback_args);
3017 epan_dissect_cleanup(&callback_args.edt);
3021 /* Completed successfully. */
3024 /* Well, the user decided to abort the printing. */
3027 /* Error while printing. */
3029 return CF_PRINT_WRITE_ERROR;
3037 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
3038 search_direction dir)
3042 mdata.string = string;
3043 mdata.string_len = strlen(string);
3044 return find_packet(cf, match_protocol_tree, &mdata, dir);
3048 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
3050 mdata->frame_matched = FALSE;
3051 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
3052 mdata->string_len = strlen(mdata->string);
3054 /* Iterate through all the nodes looking for matching text */
3055 proto_tree_children_foreach(tree, match_subtree_text, mdata);
3056 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3060 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3062 match_data *mdata = (match_data *)criterion;
3065 /* Load the frame's data. */
3066 if (!cf_read_record(cf, fdata)) {
3067 /* Attempt to get the packet failed. */
3071 /* Construct the protocol tree, including the displayed text */
3072 epan_dissect_init(&edt, cf->epan, TRUE, TRUE);
3073 /* We don't need the column information */
3074 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3076 /* Iterate through all the nodes, seeing if they have text that matches. */
3078 mdata->frame_matched = FALSE;
3079 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3080 epan_dissect_cleanup(&edt);
3081 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3085 match_subtree_text(proto_node *node, gpointer data)
3087 match_data *mdata = (match_data *) data;
3088 const gchar *string = mdata->string;
3089 size_t string_len = mdata->string_len;
3090 capture_file *cf = mdata->cf;
3091 field_info *fi = PNODE_FINFO(node);
3092 gchar label_str[ITEM_LABEL_LENGTH];
3099 /* dissection with an invisible proto tree? */
3102 if (mdata->frame_matched) {
3103 /* We already had a match; don't bother doing any more work. */
3107 /* Don't match invisible entries. */
3108 if (PROTO_ITEM_IS_HIDDEN(node))
3111 /* was a free format label produced? */
3113 label_ptr = fi->rep->representation;
3115 /* no, make a generic label */
3116 label_ptr = label_str;
3117 proto_item_fill_label(fi, label_str);
3120 /* Does that label match? */
3121 label_len = strlen(label_ptr);
3122 for (i = 0; i < label_len; i++) {
3123 c_char = label_ptr[i];
3125 c_char = toupper(c_char);
3126 if (c_char == string[c_match]) {
3128 if (c_match == string_len) {
3129 /* No need to look further; we have a match */
3130 mdata->frame_matched = TRUE;
3138 /* Recurse into the subtree, if it exists */
3139 if (node->first_child != NULL)
3140 proto_tree_children_foreach(node, match_subtree_text, mdata);
3144 cf_find_packet_summary_line(capture_file *cf, const char *string,
3145 search_direction dir)
3149 mdata.string = string;
3150 mdata.string_len = strlen(string);
3151 return find_packet(cf, match_summary_line, &mdata, dir);
3155 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3157 match_data *mdata = (match_data *)criterion;
3158 const gchar *string = mdata->string;
3159 size_t string_len = mdata->string_len;
3161 const char *info_column;
3162 size_t info_column_len;
3163 match_result result = MR_NOTMATCHED;
3169 /* Load the frame's data. */
3170 if (!cf_read_record(cf, fdata)) {
3171 /* Attempt to get the packet failed. */
3175 /* Don't bother constructing the protocol tree */
3176 epan_dissect_init(&edt, cf->epan, FALSE, FALSE);
3177 /* Get the column information */
3178 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata,
3181 /* Find the Info column */
3182 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3183 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3184 /* Found it. See if we match. */
3185 info_column = edt.pi.cinfo->col_data[colx];
3186 info_column_len = strlen(info_column);
3187 for (i = 0; i < info_column_len; i++) {
3188 c_char = info_column[i];
3190 c_char = toupper(c_char);
3191 if (c_char == string[c_match]) {
3193 if (c_match == string_len) {
3194 result = MR_MATCHED;
3203 epan_dissect_cleanup(&edt);
3210 } cbs_t; /* "Counted byte string" */
3214 * The current match_* routines only support ASCII case insensitivity and don't
3215 * convert UTF-8 inputs to UTF-16 for matching.
3217 * We could modify them to use the GLib Unicode routines or the International
3218 * Components for Unicode library but it's not apparent that we could do so
3219 * without consuming a lot more CPU and memory or that searching would be
3220 * significantly better.
3224 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
3225 search_direction dir)
3230 info.data_len = string_size;
3232 /* String or hex search? */
3234 /* String search - what type of string? */
3235 switch (cf->scs_type) {
3237 case SCS_NARROW_AND_WIDE:
3238 return find_packet(cf, match_narrow_and_wide, &info, dir);
3241 return find_packet(cf, match_narrow, &info, dir);
3244 return find_packet(cf, match_wide, &info, dir);
3247 g_assert_not_reached();
3251 return find_packet(cf, match_binary, &info, dir);
3255 match_narrow_and_wide(capture_file *cf, frame_data *fdata, void *criterion)
3257 cbs_t *info = (cbs_t *)criterion;
3258 const guint8 *ascii_text = info->data;
3259 size_t textlen = info->data_len;
3260 match_result result;
3267 /* Load the frame's data. */
3268 if (!cf_read_record(cf, fdata)) {
3269 /* Attempt to get the packet failed. */
3273 result = MR_NOTMATCHED;
3274 buf_len = fdata->cap_len;
3275 pd = ws_buffer_start_ptr(&cf->buf);
3277 while (i < buf_len) {
3280 c_char = toupper(c_char);
3281 if (c_char != '\0') {
3282 if (c_char == ascii_text[c_match]) {
3284 if (c_match == textlen) {
3285 result = MR_MATCHED;
3286 cf->search_pos = i; /* Save the position of the last character
3287 for highlighting the field. */
3292 g_assert(i>=c_match);
3293 i -= (guint32)c_match;
3303 match_narrow(capture_file *cf, frame_data *fdata, void *criterion)
3306 cbs_t *info = (cbs_t *)criterion;
3307 const guint8 *ascii_text = info->data;
3308 size_t textlen = info->data_len;
3309 match_result result;
3315 /* Load the frame's data. */
3316 if (!cf_read_record(cf, fdata)) {
3317 /* Attempt to get the packet failed. */
3321 result = MR_NOTMATCHED;
3322 buf_len = fdata->cap_len;
3323 pd = ws_buffer_start_ptr(&cf->buf);
3325 while (i < buf_len) {
3328 c_char = toupper(c_char);
3329 if (c_char == ascii_text[c_match]) {
3331 if (c_match == textlen) {
3332 result = MR_MATCHED;
3333 cf->search_pos = i; /* Save the position of the last character
3334 for highlighting the field. */
3339 g_assert(i>=c_match);
3340 i -= (guint32)c_match;
3350 match_wide(capture_file *cf, frame_data *fdata, void *criterion)
3352 cbs_t *info = (cbs_t *)criterion;
3353 const guint8 *ascii_text = info->data;
3354 size_t textlen = info->data_len;
3355 match_result result;
3362 /* Load the frame's data. */
3363 if (!cf_read_record(cf, fdata)) {
3364 /* Attempt to get the packet failed. */
3368 result = MR_NOTMATCHED;
3369 buf_len = fdata->cap_len;
3370 pd = ws_buffer_start_ptr(&cf->buf);
3372 while (i < buf_len) {
3375 c_char = toupper(c_char);
3376 if (c_char == ascii_text[c_match]) {
3378 if (c_match == textlen) {
3379 result = MR_MATCHED;
3380 cf->search_pos = i; /* Save the position of the last character
3381 for highlighting the field. */
3387 g_assert(i>=(c_match*2));
3388 i -= (guint32)c_match*2;
3397 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3399 cbs_t *info = (cbs_t *)criterion;
3400 const guint8 *binary_data = info->data;
3401 size_t datalen = info->data_len;
3402 match_result result;
3408 /* Load the frame's data. */
3409 if (!cf_read_record(cf, fdata)) {
3410 /* Attempt to get the packet failed. */
3414 result = MR_NOTMATCHED;
3415 buf_len = fdata->cap_len;
3416 pd = ws_buffer_start_ptr(&cf->buf);
3418 while (i < buf_len) {
3419 if (pd[i] == binary_data[c_match]) {
3421 if (c_match == datalen) {
3422 result = MR_MATCHED;
3423 cf->search_pos = i; /* Save the position of the last character
3424 for highlighting the field. */
3429 g_assert(i>=c_match);
3430 i -= (guint32)c_match;
3439 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3440 search_direction dir)
3442 return find_packet(cf, match_dfilter, sfcode, dir);
3446 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3447 search_direction dir)
3452 if (!dfilter_compile(filter, &sfcode, NULL)) {
3454 * XXX - this shouldn't happen, as the filter string is machine
3459 if (sfcode == NULL) {
3461 * XXX - this shouldn't happen, as the filter string is machine
3466 result = find_packet(cf, match_dfilter, sfcode, dir);
3467 dfilter_free(sfcode);
3472 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3474 dfilter_t *sfcode = (dfilter_t *)criterion;
3476 match_result result;
3478 /* Load the frame's data. */
3479 if (!cf_read_record(cf, fdata)) {
3480 /* Attempt to get the packet failed. */
3484 epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
3485 epan_dissect_prime_dfilter(&edt, sfcode);
3486 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3487 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3488 epan_dissect_cleanup(&edt);
3493 cf_find_packet_marked(capture_file *cf, search_direction dir)
3495 return find_packet(cf, match_marked, NULL, dir);
3499 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3501 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3505 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3507 return find_packet(cf, match_time_reference, NULL, dir);
3511 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3513 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3517 find_packet(capture_file *cf,
3518 match_result (*match_function)(capture_file *, frame_data *, void *),
3519 void *criterion, search_direction dir)
3521 frame_data *start_fd;
3524 frame_data *new_fd = NULL;
3525 progdlg_t *progbar = NULL;
3530 GTimeVal start_time;
3531 gchar status_str[100];
3532 int progbar_nextstep;
3533 int progbar_quantum;
3535 match_result result;
3537 start_fd = cf->current_frame;
3538 if (start_fd != NULL) {
3539 /* Iterate through the list of packets, starting at the packet we've
3540 picked, calling a routine to run the filter on the packet, see if
3541 it matches, and stop if so. */
3543 framenum = start_fd->num;
3545 /* Update the progress bar when it gets to this value. */
3546 progbar_nextstep = 0;
3547 /* When we reach the value that triggers a progress bar update,
3548 bump that value by this amount. */
3549 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3550 /* Progress so far. */
3554 g_get_current_time(&start_time);
3556 title = cf->sfilter?cf->sfilter:"";
3558 /* Create the progress bar if necessary.
3559 We check on every iteration of the loop, so that it takes no
3560 longer than the standard time to create it (otherwise, for a
3561 large file, we might take considerably longer than that standard
3562 time in order to get to the next progress bar step). */
3563 if (progbar == NULL)
3564 progbar = delayed_create_progress_dlg(cf->window, "Searching", title,
3565 FALSE, &stop_flag, &start_time, progbar_val);
3567 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3568 when we update it, we have to run the GTK+ main loop to get it
3569 to repaint what's pending, and doing so may involve an "ioctl()"
3570 to see if there's any pending input from an X server, and doing
3571 that for every packet can be costly, especially on a big file. */
3572 if (count >= progbar_nextstep) {
3573 /* let's not divide by zero. I should never be started
3574 * with count == 0, so let's assert that
3576 g_assert(cf->count > 0);
3578 progbar_val = (gfloat) count / cf->count;
3580 if (progbar != NULL) {
3581 g_snprintf(status_str, sizeof(status_str),
3582 "%4u of %u packets", count, cf->count);
3583 update_progress_dlg(progbar, progbar_val, status_str);
3586 progbar_nextstep += progbar_quantum;
3590 /* Well, the user decided to abort the search. Go back to the
3591 frame where we started. */
3596 /* Go past the current frame. */
3597 if (dir == SD_BACKWARD) {
3598 /* Go on to the previous frame. */
3599 if (framenum == 1) {
3601 * XXX - other apps have a bit more of a detailed message
3602 * for this, and instead of offering "OK" and "Cancel",
3603 * they offer things such as "Continue" and "Cancel";
3604 * we need an API for popping up alert boxes with
3605 * {Verb} and "Cancel".
3608 if (prefs.gui_find_wrap)
3610 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3611 framenum = cf->count; /* wrap around */
3615 statusbar_push_temporary_msg("Search reached the beginning.");
3616 framenum = start_fd->num; /* stay on previous packet */
3621 /* Go on to the next frame. */
3622 if (framenum == cf->count) {
3623 if (prefs.gui_find_wrap)
3625 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3626 framenum = 1; /* wrap around */
3630 statusbar_push_temporary_msg("Search reached the end.");
3631 framenum = start_fd->num; /* stay on previous packet */
3636 fdata = frame_data_sequence_find(cf->frames, framenum);
3640 /* Is this packet in the display? */
3641 if (fdata->flags.passed_dfilter) {
3642 /* Yes. Does it match the search criterion? */
3643 result = (*match_function)(cf, fdata, criterion);
3644 if (result == MR_ERROR) {
3645 /* Error; our caller has reported the error. Go back to the frame
3646 where we started. */
3649 } else if (result == MR_MATCHED) {
3650 /* Yes. Go to the new frame. */
3656 if (fdata == start_fd) {
3657 /* We're back to the frame we were on originally, and that frame
3658 doesn't match the search filter. The search failed. */
3663 /* We're done scanning the packets; destroy the progress bar if it
3665 if (progbar != NULL)
3666 destroy_progress_dlg(progbar);
3669 if (new_fd != NULL) {
3670 /* Find and select */
3671 cf->search_in_progress = TRUE;
3672 found = packet_list_select_row_from_data(new_fd);
3673 cf->search_in_progress = FALSE;
3674 cf->search_pos = 0; /* Reset the position */
3676 /* We didn't find a row corresponding to this frame.
3677 This means that the frame isn't being displayed currently,
3678 so we can't select it. */
3679 simple_message_box(ESD_TYPE_INFO, NULL,
3680 "The capture file is probably not fully dissected.",
3681 "End of capture exceeded.");
3684 return TRUE; /* success */
3686 return FALSE; /* failure */
3690 cf_goto_frame(capture_file *cf, guint fnumber)
3694 fdata = frame_data_sequence_find(cf->frames, fnumber);
3696 if (fdata == NULL) {
3697 /* we didn't find a packet with that packet number */
3698 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3699 return FALSE; /* we failed to go to that packet */
3701 if (!fdata->flags.passed_dfilter) {
3702 /* that packet currently isn't displayed */
3703 /* XXX - add it to the set of displayed packets? */
3704 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3705 return FALSE; /* we failed to go to that packet */
3708 if (!packet_list_select_row_from_data(fdata)) {
3709 /* We didn't find a row corresponding to this frame.
3710 This means that the frame isn't being displayed currently,
3711 so we can't select it. */
3712 simple_message_box(ESD_TYPE_INFO, NULL,
3713 "The capture file is probably not fully dissected.",
3714 "End of capture exceeded.");
3717 return TRUE; /* we got to that packet */
3721 cf_goto_top_frame(void)
3723 /* Find and select */
3724 packet_list_select_first_row();
3725 return TRUE; /* we got to that packet */
3729 cf_goto_bottom_frame(void)
3731 /* Find and select */
3732 packet_list_select_last_row();
3733 return TRUE; /* we got to that packet */
3737 * Go to frame specified by currently selected protocol tree item.
3740 cf_goto_framenum(capture_file *cf)
3742 header_field_info *hfinfo;
3745 if (cf->finfo_selected) {
3746 hfinfo = cf->finfo_selected->hfinfo;
3748 if (hfinfo->type == FT_FRAMENUM) {
3749 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3751 return cf_goto_frame(cf, framenum);
3758 /* Select the packet on a given row. */
3760 cf_select_packet(capture_file *cf, int row)
3762 epan_dissect_t *old_edt;
3765 /* Get the frame data struct pointer for this frame */
3766 fdata = packet_list_get_row_data(row);
3768 if (fdata == NULL) {
3769 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3770 the first entry is added to it by "real_insert_row()", that row
3771 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3772 our version and the vanilla GTK+ version).
3774 This means that a "select-row" signal is emitted; this causes
3775 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3778 "cf_select_packet()" fetches, above, the data associated with the
3779 row that was selected; however, as "gtk_clist_append()", which
3780 called "real_insert_row()", hasn't yet returned, we haven't yet
3781 associated any data with that row, so we get back a null pointer.
3783 We can't assume that there's only one frame in the frame list,
3784 either, as we may be filtering the display.
3786 We therefore assume that, if "row" is 0, i.e. the first row
3787 is being selected, and "cf->first_displayed" equals
3788 "cf->last_displayed", i.e. there's only one frame being
3789 displayed, that frame is the frame we want.
3791 This means we have to set "cf->first_displayed" and
3792 "cf->last_displayed" before adding the row to the
3793 GtkCList; see the comment in "add_packet_to_packet_list()". */
3795 if (row == 0 && cf->first_displayed == cf->last_displayed)
3796 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3799 /* If fdata _still_ isn't set simply give up. */
3800 if (fdata == NULL) {
3804 /* Get the data in that frame. */
3805 if (!cf_read_record (cf, fdata)) {
3809 /* Record that this frame is the current frame. */
3810 cf->current_frame = fdata;
3811 cf->current_row = row;
3814 /* Create the logical protocol tree. */
3815 /* We don't need the columns here. */
3816 cf->edt = epan_dissect_new(cf->epan, TRUE, TRUE);
3818 tap_build_interesting(cf->edt);
3819 epan_dissect_run(cf->edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(cf->current_frame, &cf->buf),
3820 cf->current_frame, NULL);
3822 dfilter_macro_build_ftv_cache(cf->edt->tree);
3824 cf_callback_invoke(cf_cb_packet_selected, cf);
3826 if (old_edt != NULL)
3827 epan_dissect_free(old_edt);
3831 /* Unselect the selected packet, if any. */
3833 cf_unselect_packet(capture_file *cf)
3835 epan_dissect_t *old_edt = cf->edt;
3839 /* No packet is selected. */
3840 cf->current_frame = NULL;
3841 cf->current_row = 0;
3843 cf_callback_invoke(cf_cb_packet_unselected, cf);
3845 /* No protocol tree means no selected field. */
3846 cf_unselect_field(cf);
3848 /* Destroy the epan_dissect_t for the unselected packet. */
3849 if (old_edt != NULL)
3850 epan_dissect_free(old_edt);
3853 /* Unset the selected protocol tree field, if any. */
3855 cf_unselect_field(capture_file *cf)
3857 cf->finfo_selected = NULL;
3859 cf_callback_invoke(cf_cb_field_unselected, cf);
3863 * Mark a particular frame.
3866 cf_mark_frame(capture_file *cf, frame_data *frame)
3868 if (! frame->flags.marked) {
3869 frame->flags.marked = TRUE;
3870 if (cf->count > cf->marked_count)
3876 * Unmark a particular frame.
3879 cf_unmark_frame(capture_file *cf, frame_data *frame)
3881 if (frame->flags.marked) {
3882 frame->flags.marked = FALSE;
3883 if (cf->marked_count > 0)
3889 * Ignore a particular frame.
3892 cf_ignore_frame(capture_file *cf, frame_data *frame)
3894 if (! frame->flags.ignored) {
3895 frame->flags.ignored = TRUE;
3896 if (cf->count > cf->ignored_count)
3897 cf->ignored_count++;
3902 * Un-ignore a particular frame.
3905 cf_unignore_frame(capture_file *cf, frame_data *frame)
3907 if (frame->flags.ignored) {
3908 frame->flags.ignored = FALSE;
3909 if (cf->ignored_count > 0)
3910 cf->ignored_count--;
3915 * Read the comment in SHB block
3919 cf_read_shb_comment(capture_file *cf)
3921 wtapng_section_t *shb_inf;
3922 const gchar *temp_str;
3924 /* Get info from SHB */
3925 shb_inf = wtap_file_get_shb_info(cf->wth);
3926 if (shb_inf == NULL)
3928 temp_str = shb_inf->opt_comment;
3936 cf_update_capture_comment(capture_file *cf, gchar *comment)
3938 wtapng_section_t *shb_inf;
3940 /* Get info from SHB */
3941 shb_inf = wtap_file_get_shb_info(cf->wth);
3943 /* See if the comment has changed or not */
3944 if (shb_inf && shb_inf->opt_comment) {
3945 if (strcmp(shb_inf->opt_comment, comment) == 0) {
3954 /* The comment has changed, let's update it */
3955 wtap_write_shb_comment(cf->wth, comment);
3956 /* Mark the file as having unsaved changes */
3957 cf->unsaved_changes = TRUE;
3961 cf_get_user_packet_comment(capture_file *cf, const frame_data *fd)
3963 if (cf->frames_user_comments)
3964 return (const char *)g_tree_lookup(cf->frames_user_comments, fd);
3971 cf_get_comment(capture_file *cf, const frame_data *fd)
3975 /* fetch user comment */
3976 if (fd->flags.has_user_comment)
3977 return g_strdup(cf_get_user_packet_comment(cf, fd));
3979 /* fetch phdr comment */
3980 if (fd->flags.has_phdr_comment) {
3981 struct wtap_pkthdr phdr; /* Packet header */
3982 Buffer buf; /* Packet data */
3984 wtap_phdr_init(&phdr);
3985 ws_buffer_init(&buf, 1500);
3987 if (!cf_read_record_r(cf, fd, &phdr, &buf))
3988 { /* XXX, what we can do here? */ }
3990 comment = phdr.opt_comment;
3991 wtap_phdr_cleanup(&phdr);
3992 ws_buffer_free(&buf);
3999 frame_cmp(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4001 const frame_data *fdata1 = (const frame_data *) a;
4002 const frame_data *fdata2 = (const frame_data *) b;
4004 return (fdata1->num < fdata2->num) ? -1 :
4005 (fdata1->num > fdata2->num) ? 1 :
4010 cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment)
4012 char *pkt_comment = cf_get_comment(cf, fd);
4014 /* Check if the comment has changed */
4015 if (!g_strcmp0(pkt_comment, new_comment)) {
4016 g_free(pkt_comment);
4019 g_free(pkt_comment);
4022 cf->packet_comment_count--;
4025 cf->packet_comment_count++;
4027 fd->flags.has_user_comment = TRUE;
4029 if (!cf->frames_user_comments)
4030 cf->frames_user_comments = g_tree_new_full(frame_cmp, NULL, NULL, g_free);
4032 /* insert new packet comment */
4033 g_tree_replace(cf->frames_user_comments, fd, g_strdup(new_comment));
4035 expert_update_comment_count(cf->packet_comment_count);
4037 /* OK, we have unsaved changes. */
4038 cf->unsaved_changes = TRUE;
4043 * What types of comments does this capture file have?
4046 cf_comment_types(capture_file *cf)
4048 guint32 comment_types = 0;
4050 if (cf_read_shb_comment(cf) != NULL)
4051 comment_types |= WTAP_COMMENT_PER_SECTION;
4052 if (cf->packet_comment_count != 0)
4053 comment_types |= WTAP_COMMENT_PER_PACKET;
4054 return comment_types;
4057 #ifdef WANT_PACKET_EDITOR
4059 g_direct_compare_func(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4070 modified_frame_data_free(gpointer data)
4072 modified_frame_data *mfd = (modified_frame_data *)data;
4079 * Give a frame new, edited data.
4082 cf_set_frame_edited(capture_file *cf, frame_data *fd,
4083 struct wtap_pkthdr *phdr, guint8 *pd)
4085 modified_frame_data *mfd = (modified_frame_data *)g_malloc(sizeof(modified_frame_data));
4090 if (cf->edited_frames == NULL)
4091 cf->edited_frames = g_tree_new_full(g_direct_compare_func, NULL, NULL,
4092 modified_frame_data_free);
4093 g_tree_insert(cf->edited_frames, GINT_TO_POINTER(fd->num), mfd);
4096 /* Mark the file as having unsaved changes */
4097 cf->unsaved_changes = TRUE;
4105 } save_callback_args_t;
4108 * Save a capture to a file, in a particular format, saving either
4109 * all packets, all currently-displayed packets, or all marked packets.
4111 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4112 * up a message box for the failure.
4115 save_record(capture_file *cf, frame_data *fdata,
4116 struct wtap_pkthdr *phdr, const guint8 *pd,
4119 save_callback_args_t *args = (save_callback_args_t *)argsp;
4120 struct wtap_pkthdr hdr;
4123 gchar *display_basename;
4124 const char *pkt_comment;
4126 if (fdata->flags.has_user_comment)
4127 pkt_comment = cf_get_user_packet_comment(cf, fdata);
4129 pkt_comment = phdr->opt_comment;
4131 /* init the wtap header for saving */
4132 /* TODO: reuse phdr */
4133 /* XXX - these are the only flags that correspond to data that we have
4134 in the frame_data structure and that matter on a per-packet basis.
4136 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
4137 and "on the wire" lengths, or it doesn't.
4139 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
4142 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
4143 from the packet flags. */
4144 hdr.rec_type = phdr->rec_type;
4145 hdr.presence_flags = 0;
4146 if (fdata->flags.has_ts)
4147 hdr.presence_flags |= WTAP_HAS_TS;
4148 if (phdr->presence_flags & WTAP_HAS_INTERFACE_ID)
4149 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
4150 if (phdr->presence_flags & WTAP_HAS_PACK_FLAGS)
4151 hdr.presence_flags |= WTAP_HAS_PACK_FLAGS;
4152 hdr.ts.secs = fdata->abs_ts.secs;
4153 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4154 hdr.caplen = phdr->caplen;
4155 hdr.len = phdr->len;
4156 hdr.pkt_encap = fdata->lnk_t;
4158 hdr.interface_id = phdr->interface_id; /* identifier of the interface. */
4160 hdr.pack_flags = phdr->pack_flags;
4161 hdr.opt_comment = g_strdup(pkt_comment);
4164 hdr.pseudo_header = phdr->pseudo_header;
4167 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
4169 /* and save the packet */
4170 if (!wtap_dump(args->pdh, &hdr, pd, &err, &err_info)) {
4172 /* Wiretap error. */
4175 case WTAP_ERR_UNWRITABLE_ENCAP:
4177 * This is a problem with the particular frame we're writing and
4178 * the file type and subtype we're writing; note that, and report
4179 * the frame number and file type/subtype.
4181 simple_error_message_box(
4182 "Frame %u has a network type that can't be saved in a \"%s\" file.",
4183 fdata->num, wtap_file_type_subtype_string(args->file_type));
4186 case WTAP_ERR_PACKET_TOO_LARGE:
4188 * This is a problem with the particular frame we're writing and
4189 * the file type and subtype we're writing; note that, and report
4190 * the frame number and file type/subtype.
4192 simple_error_message_box(
4193 "Frame %u is larger than Wireshark supports in a \"%s\" file.",
4194 fdata->num, wtap_file_type_subtype_string(args->file_type));
4197 case WTAP_ERR_UNWRITABLE_REC_TYPE:
4199 * This is a problem with the particular record we're writing and
4200 * the file type and subtype we're writing; note that, and report
4201 * the record number and file type/subtype.
4203 simple_error_message_box(
4204 "Record %u has a record type that can't be saved in a \"%s\" file.",
4205 fdata->num, wtap_file_type_subtype_string(args->file_type));
4208 case WTAP_ERR_UNWRITABLE_REC_DATA:
4210 * This is a problem with the particular frame we're writing and
4211 * the file type and subtype we're writing; note that, and report
4212 * the frame number and file type/subtype.
4214 simple_error_message_box(
4215 "Record %u has data that can't be saved in a \"%s\" file.\n(%s)",
4216 fdata->num, wtap_file_type_subtype_string(args->file_type),
4217 err_info != NULL ? err_info : "no information supplied");
4222 display_basename = g_filename_display_basename(args->fname);
4223 simple_error_message_box(
4224 "An error occurred while writing to the file \"%s\": %s.",
4225 display_basename, wtap_strerror(err));
4226 g_free(display_basename);
4231 write_failure_alert_box(args->fname, err);
4236 g_free(hdr.opt_comment);
4241 * Can this capture file be written out in any format using Wiretap
4242 * rather than by copying the raw data?
4245 cf_can_write_with_wiretap(capture_file *cf)
4247 /* We don't care whether we support the comments in this file or not;
4248 if we can't, we'll offer the user the option of discarding the
4250 return wtap_dump_can_write(cf->linktypes, 0);
4254 * Should we let the user do a save?
4258 * the file has unsaved changes, and we can save it in some
4259 * format through Wiretap
4263 * the file is a temporary file and has no unsaved changes (so
4264 * that "saving" it just means copying it).
4266 * XXX - we shouldn't allow files to be edited if they can't be saved,
4267 * so cf->unsaved_changes should be true only if the file can be saved.
4269 * We don't care whether we support the comments in this file or not;
4270 * if we can't, we'll offer the user the option of discarding the
4274 cf_can_save(capture_file *cf)
4276 if (cf->unsaved_changes && wtap_dump_can_write(cf->linktypes, 0)) {
4277 /* Saved changes, and we can write it out with Wiretap. */
4281 if (cf->is_tempfile && !cf->unsaved_changes) {
4283 * Temporary file with no unsaved changes, so we can just do a
4289 /* Nothing to save. */
4294 * Should we let the user do a "save as"?
4298 * we can save it in some format through Wiretap
4302 * the file is a temporary file and has no unsaved changes (so
4303 * that "saving" it just means copying it).
4305 * XXX - we shouldn't allow files to be edited if they can't be saved,
4306 * so cf->unsaved_changes should be true only if the file can be saved.
4308 * We don't care whether we support the comments in this file or not;
4309 * if we can't, we'll offer the user the option of discarding the
4313 cf_can_save_as(capture_file *cf)
4315 if (wtap_dump_can_write(cf->linktypes, 0)) {
4316 /* We can write it out with Wiretap. */
4320 if (cf->is_tempfile && !cf->unsaved_changes) {
4322 * Temporary file with no unsaved changes, so we can just do a
4328 /* Nothing to save. */
4333 * Does this file have unsaved data?
4336 cf_has_unsaved_data(capture_file *cf)
4339 * If this is a temporary file, or a file with unsaved changes, it
4342 return cf->is_tempfile || cf->unsaved_changes;
4346 * Quick scan to find packet offsets.
4348 static cf_read_status_t
4349 rescan_file(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
4351 const struct wtap_pkthdr *phdr;
4356 progdlg_t *progbar = NULL;
4360 GTimeVal start_time;
4361 gchar status_str[100];
4362 gint64 progbar_nextstep;
4363 gint64 progbar_quantum;
4368 int displayed_once = 0;
4371 /* Close the old handle. */
4372 wtap_close(cf->wth);
4374 /* Open the new file. */
4375 /* XXX: this will go through all open_routines for a matching one. But right
4376 now rescan_file() is only used when a file is being saved to a different
4377 format than the original, and the user is not given a choice of which
4378 reader to use (only which format to save it in), so doing this makes
4380 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, err, &err_info, TRUE);
4381 if (cf->wth == NULL) {
4382 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
4383 return CF_READ_ERROR;
4386 /* We're scanning a file whose contents should be the same as what
4387 we had before, so we don't discard dissection state etc.. */
4390 /* Set the file name because we need it to set the follow stream filter.
4391 XXX - is that still true? We need it for other reasons, though,
4393 cf->filename = g_strdup(fname);
4395 /* Indicate whether it's a permanent or temporary file. */
4396 cf->is_tempfile = is_tempfile;
4398 /* No user changes yet. */
4399 cf->unsaved_changes = FALSE;
4401 cf->cd_t = wtap_file_type_subtype(cf->wth);
4402 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
4404 cf->snap = wtap_snapshot_length(cf->wth);
4405 if (cf->snap == 0) {
4406 /* Snapshot length not known. */
4407 cf->has_snap = FALSE;
4408 cf->snap = WTAP_MAX_PACKET_SIZE;
4410 cf->has_snap = TRUE;
4412 name_ptr = g_filename_display_basename(cf->filename);
4414 cf_callback_invoke(cf_cb_file_rescan_started, cf);
4416 /* Record whether the file is compressed.
4417 XXX - do we know this at open time? */
4418 cf->iscompressed = wtap_iscompressed(cf->wth);
4420 /* Find the size of the file. */
4421 size = wtap_file_size(cf->wth, NULL);
4423 /* Update the progress bar when it gets to this value. */
4424 progbar_nextstep = 0;
4425 /* When we reach the value that triggers a progress bar update,
4426 bump that value by this amount. */
4428 progbar_quantum = size/N_PROGBAR_UPDATES;
4429 if (progbar_quantum < MIN_QUANTUM)
4430 progbar_quantum = MIN_QUANTUM;
4432 progbar_quantum = 0;
4435 g_get_current_time(&start_time);
4438 phdr = wtap_phdr(cf->wth);
4439 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
4441 fdata = frame_data_sequence_find(cf->frames, framenum);
4442 fdata->file_off = data_offset;
4445 file_pos = wtap_read_so_far(cf->wth);
4447 /* Create the progress bar if necessary.
4448 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
4450 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
4451 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4452 progbar = delayed_create_progress_dlg(cf->window, "Rescanning", name_ptr,
4453 TRUE, &stop_flag, &start_time, progbar_val);
4456 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
4457 when we update it, we have to run the GTK+ main loop to get it
4458 to repaint what's pending, and doing so may involve an "ioctl()"
4459 to see if there's any pending input from an X server, and doing
4460 that for every packet can be costly, especially on a big file. */
4461 if (file_pos >= progbar_nextstep) {
4462 if (progbar != NULL) {
4463 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4464 /* update the packet bar content on the first run or frequently on very large files */
4466 if (progbar_quantum > 500000 || displayed_once == 0) {
4467 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
4469 packets_bar_update();
4472 #endif /* HAVE_LIBPCAP */
4473 update_progress_dlg(progbar, progbar_val, status_str);
4475 progbar_nextstep += progbar_quantum;
4480 /* Well, the user decided to abort the rescan. Sadly, as this
4481 isn't a reread, recovering is difficult, so we'll just
4482 close the current capture. */
4486 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4487 it's not already there.
4488 XXX - yes, this is O(N), so if every packet had a different
4489 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4490 there are probably going to be a small number of encapsulation types
4492 cf_add_encapsulation_type(cf, phdr->pkt_encap);
4495 /* Free the display name */
4498 /* We're done reading the file; destroy the progress bar if it was created. */
4499 if (progbar != NULL)
4500 destroy_progress_dlg(progbar);
4502 /* We're done reading sequentially through the file. */
4503 cf->state = FILE_READ_DONE;
4505 /* Close the sequential I/O side, to free up memory it requires. */
4506 wtap_sequential_close(cf->wth);
4508 /* compute the time it took to load the file */
4509 compute_elapsed(cf, &start_time);
4511 /* Set the file encapsulation type now; we don't know what it is until
4512 we've looked at all the packets, as we don't know until then whether
4513 there's more than one type (and thus whether it's
4514 WTAP_ENCAP_PER_PACKET). */
4515 cf->lnk_t = wtap_file_encap(cf->wth);
4517 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
4520 /* Our caller will give up at this point. */
4521 return CF_READ_ABORTED;
4525 /* Put up a message box noting that the read failed somewhere along
4526 the line. Don't throw out the stuff we managed to read, though,
4530 case WTAP_ERR_UNSUPPORTED:
4531 simple_error_message_box(
4532 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4533 err_info != NULL ? err_info : "no information supplied");
4537 case WTAP_ERR_SHORT_READ:
4538 simple_error_message_box(
4539 "The capture file appears to have been cut short"
4540 " in the middle of a packet.");
4543 case WTAP_ERR_BAD_FILE:
4544 simple_error_message_box(
4545 "The capture file appears to be damaged or corrupt.\n(%s)",
4546 err_info != NULL ? err_info : "no information supplied");
4550 case WTAP_ERR_DECOMPRESS:
4551 simple_error_message_box(
4552 "The compressed capture file appears to be damaged or corrupt.\n"
4554 err_info != NULL ? err_info : "no information supplied");
4559 simple_error_message_box(
4560 "An error occurred while reading the"
4561 " capture file: %s.", wtap_strerror(*err));
4564 return CF_READ_ERROR;
4570 cf_save_records(capture_file *cf, const char *fname, guint save_format,
4571 gboolean compressed, gboolean discard_comments,
4572 gboolean dont_reopen)
4575 gchar *fname_new = NULL;
4578 addrinfo_lists_t *addr_lists;
4582 gchar *display_basename;
4589 save_callback_args_t callback_args;
4591 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4593 addr_lists = get_addrinfo_list();
4595 if (save_format == cf->cd_t && compressed == cf->iscompressed
4596 && !discard_comments && !cf->unsaved_changes
4597 && !(addr_lists && wtap_dump_has_name_resolution(save_format))) {
4598 /* We're saving in the format it's already in, and we're
4599 not discarding comments, and there are no changes we have
4600 in memory that aren't saved to the file, and we have no name
4601 resolution blocks to write, so we can just move or copy the raw data. */
4603 if (cf->is_tempfile) {
4604 /* The file being saved is a temporary file from a live
4605 capture, so it doesn't need to stay around under that name;
4606 first, try renaming the capture buffer file to the new name.
4607 This acts as a "safe save", in that, if the file already
4608 exists, the existing file will be removed only if the rename
4611 Sadly, on Windows, as we have the current capture file
4612 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4613 (to cause the rename to remove an existing target), as
4614 done by ws_stdio_rename() (ws_rename() is #defined to
4615 be ws_stdio_rename() on Windows) will fail.
4617 According to the MSDN documentation for CreateFile(), if,
4618 when we open a capture file, we were to directly do a CreateFile(),
4619 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4620 convert it to a file descriptor with _open_osfhandle(),
4621 that would allow the file to be renamed out from under us.
4623 However, that doesn't work in practice. Perhaps the problem
4624 is that the process doing the rename is the process that
4625 has the file open. */
4627 if (ws_rename(cf->filename, fname) == 0) {
4628 /* That succeeded - there's no need to copy the source file. */
4629 how_to_save = SAVE_WITH_MOVE;
4631 if (errno == EXDEV) {
4632 /* They're on different file systems, so we have to copy the
4634 how_to_save = SAVE_WITH_COPY;
4636 /* The rename failed, but not because they're on different
4637 file systems - put up an error message. (Or should we
4638 just punt and try to copy? The only reason why I'd
4639 expect the rename to fail and the copy to succeed would
4640 be if we didn't have permission to remove the file from
4641 the temporary directory, and that might be fixable - but
4642 is it worth requiring the user to go off and fix it?) */
4643 cf_rename_failure_alert_box(fname, errno);
4648 how_to_save = SAVE_WITH_COPY;
4651 /* It's a permanent file, so we should copy it, and not remove the
4653 how_to_save = SAVE_WITH_COPY;
4656 if (how_to_save == SAVE_WITH_COPY) {
4657 /* Copy the file, if we haven't moved it. If we're overwriting
4658 an existing file, we do it with a "safe save", by writing
4659 to a new file and, if the write succeeds, renaming the
4660 new file on top of the old file. */
4661 if (file_exists(fname)) {
4662 fname_new = g_strdup_printf("%s~", fname);
4663 if (!copy_file_binary_mode(cf->filename, fname_new))
4666 if (!copy_file_binary_mode(cf->filename, fname))
4671 /* Either we're saving in a different format or we're saving changes,
4672 such as added, modified, or removed comments, that haven't yet
4673 been written to the underlying file; we can't do that by copying
4674 or moving the capture file, we have to do it by writing the packets
4677 wtapng_section_t *shb_hdr = NULL;
4678 wtapng_iface_descriptions_t *idb_inf = NULL;
4681 shb_hdr = wtap_file_get_shb_info(cf->wth);
4682 idb_inf = wtap_file_get_idb_info(cf->wth);
4684 /* Determine what file encapsulation type we should use. */
4685 encap = wtap_dump_file_encap_type(cf->linktypes);
4687 if (file_exists(fname)) {
4688 /* We're overwriting an existing file; write out to a new file,
4689 and, if that succeeds, rename the new file on top of the
4690 old file. That makes this a "safe save", so that we don't
4691 lose the old file if we have a problem writing out the new
4692 file. (If the existing file is the current capture file,
4693 we *HAVE* to do that, otherwise we're overwriting the file
4694 from which we're reading the packets that we're writing!) */
4695 fname_new = g_strdup_printf("%s~", fname);
4696 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4697 compressed, shb_hdr, idb_inf, &err);
4699 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4700 compressed, shb_hdr, idb_inf, &err);
4706 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4710 /* Add address resolution */
4711 wtap_dump_set_addrinfo_list(pdh, addr_lists);
4713 /* Iterate through the list of packets, processing all the packets. */
4714 callback_args.pdh = pdh;
4715 callback_args.fname = fname;
4716 callback_args.file_type = save_format;
4717 switch (process_specified_records(cf, NULL, "Saving", "packets",
4718 TRUE, save_record, &callback_args)) {
4721 /* Completed successfully. */
4725 /* The user decided to abort the saving.
4726 If we're writing to a temporary file, remove it.
4727 XXX - should we do so even if we're not writing to a
4729 wtap_dump_close(pdh, &err);
4730 if (fname_new != NULL)
4731 ws_unlink(fname_new);
4732 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
4733 return CF_WRITE_ABORTED;
4736 /* Error while saving.
4737 If we're writing to a temporary file, remove it. */
4738 if (fname_new != NULL)
4739 ws_unlink(fname_new);
4740 wtap_dump_close(pdh, &err);
4744 if (!wtap_dump_close(pdh, &err)) {
4745 cf_close_failure_alert_box(fname, err);
4749 how_to_save = SAVE_WITH_WTAP;
4752 if (fname_new != NULL) {
4753 /* We wrote out to fname_new, and should rename it on top of
4754 fname. fname_new is now closed, so that should be possible even
4755 on Windows. However, on Windows, we first need to close whatever
4756 file descriptors we have open for fname. */
4758 wtap_fdclose(cf->wth);
4760 /* Now do the rename. */
4761 if (ws_rename(fname_new, fname) == -1) {
4762 /* Well, the rename failed. */
4763 cf_rename_failure_alert_box(fname, errno);
4765 /* Attempt to reopen the random file descriptor using the
4766 current file's filename. (At this point, the sequential
4767 file descriptor is closed.) */
4768 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4769 /* Oh, well, we're screwed. */
4770 display_basename = g_filename_display_basename(cf->filename);
4771 simple_error_message_box(
4772 file_open_error_message(err, FALSE), display_basename);
4773 g_free(display_basename);
4780 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4781 cf->unsaved_changes = FALSE;
4784 switch (how_to_save) {
4786 case SAVE_WITH_MOVE:
4787 /* We just moved the file, so the wtap structure refers to the
4788 new file, and all the information other than the filename
4789 and the "is temporary" status applies to the new file; just
4791 g_free(cf->filename);
4792 cf->filename = g_strdup(fname);
4793 cf->is_tempfile = FALSE;
4794 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4797 case SAVE_WITH_COPY:
4798 /* We just copied the file, s all the information other than
4799 the wtap structure, the filename, and the "is temporary"
4800 status applies to the new file; just update that. */
4801 wtap_close(cf->wth);
4802 /* Although we're just "copying" and then opening the copy, it will
4803 try all open_routine readers to open the copy, so we need to
4804 reset the cfile's open_type. */
4805 cf->open_type = WTAP_TYPE_AUTO;
4806 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, &err, &err_info, TRUE);
4807 if (cf->wth == NULL) {
4808 cf_open_failure_alert_box(fname, err, err_info, FALSE, 0);
4811 g_free(cf->filename);
4812 cf->filename = g_strdup(fname);
4813 cf->is_tempfile = FALSE;
4815 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4818 case SAVE_WITH_WTAP:
4819 /* Open and read the file we saved to.
4821 XXX - this is somewhat of a waste; we already have the
4822 packets, all this gets us is updated file type information
4823 (which we could just stuff into "cf"), and having the new
4824 file be the one we have opened and from which we're reading
4825 the data, and it means we have to spend time opening and
4826 reading the file, which could be a significant amount of
4827 time if the file is large.
4829 If the capture-file-writing code were to return the
4830 seek offset of each packet it writes, we could save that
4831 in the frame_data structure for the frame, and just open
4832 the file without reading it again...
4834 ...as long as, for gzipped files, the process of writing
4835 out the file *also* generates the information needed to
4836 support fast random access to the compressed file. */
4837 /* rescan_file will cause us to try all open_routines, so
4838 reset cfile's open_type */
4839 cf->open_type = WTAP_TYPE_AUTO;
4840 if (rescan_file(cf, fname, FALSE, &err) != CF_READ_OK) {
4841 /* The rescan failed; just close the file. Either
4842 a dialog was popped up for the failure, so the
4843 user knows what happened, or they stopped the
4844 rescan, in which case they know what happened. */
4850 /* If we were told to discard the comments, do so. */
4851 if (discard_comments) {
4852 /* Remove SHB comment, if any. */
4853 wtap_write_shb_comment(cf->wth, NULL);
4855 /* remove all user comments */
4856 for (framenum = 1; framenum <= cf->count; framenum++) {
4857 fdata = frame_data_sequence_find(cf->frames, framenum);
4859 fdata->flags.has_phdr_comment = FALSE;
4860 fdata->flags.has_user_comment = FALSE;
4863 if (cf->frames_user_comments) {
4864 g_tree_destroy(cf->frames_user_comments);
4865 cf->frames_user_comments = NULL;
4868 cf->packet_comment_count = 0;
4874 if (fname_new != NULL) {
4875 /* We were trying to write to a temporary file; get rid of it if it
4876 exists. (We don't care whether this fails, as, if it fails,
4877 there's not much we can do about it. I guess if it failed for
4878 a reason other than "it doesn't exist", we could report an
4879 error, so the user knows there's a junk file that they might
4880 want to clean up.) */
4881 ws_unlink(fname_new);
4884 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4885 return CF_WRITE_ERROR;
4889 cf_export_specified_packets(capture_file *cf, const char *fname,
4890 packet_range_t *range, guint save_format,
4891 gboolean compressed)
4893 gchar *fname_new = NULL;
4896 save_callback_args_t callback_args;
4897 wtapng_section_t *shb_hdr;
4898 wtapng_iface_descriptions_t *idb_inf;
4901 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4903 packet_range_process_init(range);
4905 /* We're writing out specified packets from the specified capture
4906 file to another file. Even if all captured packets are to be
4907 written, don't special-case the operation - read each packet
4908 and then write it out if it's one of the specified ones. */
4910 shb_hdr = wtap_file_get_shb_info(cf->wth);
4911 idb_inf = wtap_file_get_idb_info(cf->wth);
4913 /* Determine what file encapsulation type we should use. */
4914 encap = wtap_dump_file_encap_type(cf->linktypes);
4916 if (file_exists(fname)) {
4917 /* We're overwriting an existing file; write out to a new file,
4918 and, if that succeeds, rename the new file on top of the
4919 old file. That makes this a "safe save", so that we don't
4920 lose the old file if we have a problem writing out the new
4921 file. (If the existing file is the current capture file,
4922 we *HAVE* to do that, otherwise we're overwriting the file
4923 from which we're reading the packets that we're writing!) */
4924 fname_new = g_strdup_printf("%s~", fname);
4925 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4926 compressed, shb_hdr, idb_inf, &err);
4928 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4929 compressed, shb_hdr, idb_inf, &err);
4935 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4939 /* Add address resolution */
4940 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4942 /* Iterate through the list of packets, processing the packets we were
4945 XXX - we've already called "packet_range_process_init(range)", but
4946 "process_specified_records()" will do it again. Fortunately,
4947 that's harmless in this case, as we haven't done anything to
4948 "range" since we initialized it. */
4949 callback_args.pdh = pdh;
4950 callback_args.fname = fname;
4951 callback_args.file_type = save_format;
4952 switch (process_specified_records(cf, range, "Writing", "specified records",
4953 TRUE, save_record, &callback_args)) {
4956 /* Completed successfully. */
4960 /* The user decided to abort the saving.
4961 If we're writing to a temporary file, remove it.
4962 XXX - should we do so even if we're not writing to a
4964 wtap_dump_close(pdh, &err);
4965 if (fname_new != NULL)
4966 ws_unlink(fname_new);
4967 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4968 return CF_WRITE_ABORTED;
4972 /* Error while saving.
4973 If we're writing to a temporary file, remove it. */
4974 if (fname_new != NULL)
4975 ws_unlink(fname_new);
4976 wtap_dump_close(pdh, &err);
4980 if (!wtap_dump_close(pdh, &err)) {
4981 cf_close_failure_alert_box(fname, err);
4985 if (fname_new != NULL) {
4986 /* We wrote out to fname_new, and should rename it on top of
4987 fname; fname is now closed, so that should be possible even
4988 on Windows. Do the rename. */
4989 if (ws_rename(fname_new, fname) == -1) {
4990 /* Well, the rename failed. */
4991 cf_rename_failure_alert_box(fname, errno);
4996 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
5000 if (fname_new != NULL) {
5001 /* We were trying to write to a temporary file; get rid of it if it
5002 exists. (We don't care whether this fails, as, if it fails,
5003 there's not much we can do about it. I guess if it failed for
5004 a reason other than "it doesn't exist", we could report an
5005 error, so the user knows there's a junk file that they might
5006 want to clean up.) */
5007 ws_unlink(fname_new);
5010 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
5011 return CF_WRITE_ERROR;
5015 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
5016 gboolean for_writing, int file_type)
5018 gchar *display_basename;
5021 /* Wiretap error. */
5022 display_basename = g_filename_display_basename(filename);
5025 case WTAP_ERR_NOT_REGULAR_FILE:
5026 simple_error_message_box(
5027 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
5031 case WTAP_ERR_RANDOM_OPEN_PIPE:
5032 /* Seen only when opening a capture file for reading. */
5033 simple_error_message_box(
5034 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
5035 "To capture from a pipe or FIFO use wireshark -i -",
5039 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
5040 /* Seen only when opening a capture file for reading. */
5041 simple_error_message_box(
5042 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
5046 case WTAP_ERR_UNSUPPORTED:
5047 /* Seen only when opening a capture file for reading. */
5048 simple_error_message_box(
5049 "The file \"%s\" contains record data that Wireshark doesn't support.\n",
5052 err_info != NULL ? err_info : "no information supplied");
5056 case WTAP_ERR_CANT_WRITE_TO_PIPE:
5057 /* Seen only when opening a capture file for writing. */
5058 simple_error_message_box(
5059 "The file \"%s\" is a pipe, and %s capture files can't be "
5060 "written to a pipe.",
5061 display_basename, wtap_file_type_subtype_string(file_type));
5064 case WTAP_ERR_UNWRITABLE_FILE_TYPE:
5065 /* Seen only when opening a capture file for writing. */
5066 simple_error_message_box(
5067 "Wireshark doesn't support writing capture files in that format.");
5070 case WTAP_ERR_UNWRITABLE_ENCAP:
5071 /* Seen only when opening a capture file for writing. */
5072 simple_error_message_box("Wireshark can't save this capture in that format.");
5075 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
5077 simple_error_message_box(
5078 "Wireshark can't save this capture in that format.");
5080 simple_error_message_box(
5081 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
5086 case WTAP_ERR_BAD_FILE:
5087 /* Seen only when opening a capture file for reading. */
5088 simple_error_message_box(
5089 "The file \"%s\" appears to be damaged or corrupt.\n"
5092 err_info != NULL ? err_info : "no information supplied");
5096 case WTAP_ERR_CANT_OPEN:
5098 simple_error_message_box(
5099 "The file \"%s\" could not be created for some unknown reason.",
5102 simple_error_message_box(
5103 "The file \"%s\" could not be opened for some unknown reason.",
5108 case WTAP_ERR_SHORT_READ:
5109 simple_error_message_box(
5110 "The file \"%s\" appears to have been cut short"
5111 " in the middle of a packet or other data.",
5115 case WTAP_ERR_SHORT_WRITE:
5116 simple_error_message_box(
5117 "A full header couldn't be written to the file \"%s\".",
5121 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
5122 simple_error_message_box(
5123 "This file type cannot be written as a compressed file.");
5126 case WTAP_ERR_DECOMPRESS:
5127 simple_error_message_box(
5128 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
5129 "(%s)", display_basename,
5130 err_info != NULL ? err_info : "no information supplied");
5135 simple_error_message_box(
5136 "The file \"%s\" could not be %s: %s.",
5138 for_writing ? "created" : "opened",
5139 wtap_strerror(err));
5142 g_free(display_basename);
5145 open_failure_alert_box(filename, err, for_writing);
5150 * XXX - whether we mention the source pathname, the target pathname,
5151 * or both depends on the error and on what we find if we look for
5152 * one or both of them.
5155 cf_rename_failure_alert_box(const char *filename, int err)
5157 gchar *display_basename;
5159 display_basename = g_filename_display_basename(filename);
5163 /* XXX - should check whether the source exists and, if not,
5164 report it as the problem and, if so, report the destination
5166 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
5171 /* XXX - if we're doing a rename after a safe save, we should
5172 probably say something else. */
5173 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
5178 /* XXX - this should probably mention both the source and destination
5180 simple_error_message_box("The file \"%s\" could not be moved: %s.",
5181 display_basename, wtap_strerror(err));
5184 g_free(display_basename);
5187 /* Check for write errors - if the file is being written to an NFS server,
5188 a write error may not show up until the file is closed, as NFS clients
5189 might not send writes to the server until the "write()" call finishes,
5190 so that the write may fail on the server but the "write()" may succeed. */
5192 cf_close_failure_alert_box(const char *filename, int err)
5194 gchar *display_basename;
5197 /* Wiretap error. */
5198 display_basename = g_filename_display_basename(filename);
5201 case WTAP_ERR_CANT_CLOSE:
5202 simple_error_message_box(
5203 "The file \"%s\" couldn't be closed for some unknown reason.",
5207 case WTAP_ERR_SHORT_WRITE:
5208 simple_error_message_box(
5209 "Not all the packets could be written to the file \"%s\".",
5214 simple_error_message_box(
5215 "An error occurred while closing the file \"%s\": %s.",
5216 display_basename, wtap_strerror(err));
5219 g_free(display_basename);
5222 We assume that a close error from the OS is really a write error. */
5223 write_failure_alert_box(filename, err);
5227 /* Reload the current capture file. */
5229 cf_reload(capture_file *cf) {
5231 gboolean is_tempfile;
5234 /* If the file could be opened, "cf_open()" calls "cf_close()"
5235 to get rid of state for the old capture file before filling in state
5236 for the new capture file. "cf_close()" will remove the file if
5237 it's a temporary file; we don't want that to happen (for one thing,
5238 it'd prevent subsequent reopens from working). Remember whether it's
5239 a temporary file, mark it as not being a temporary file, and then
5240 reopen it as the type of file it was.
5242 Also, "cf_close()" will free "cf->filename", so we must make
5243 a copy of it first. */
5244 filename = g_strdup(cf->filename);
5245 is_tempfile = cf->is_tempfile;
5246 cf->is_tempfile = FALSE;
5247 if (cf_open(cf, filename, cf->open_type, is_tempfile, &err) == CF_OK) {
5248 switch (cf_read(cf, TRUE)) {
5252 /* Just because we got an error, that doesn't mean we were unable
5253 to read any of the file; we handle what we could get from the
5257 case CF_READ_ABORTED:
5258 /* The user bailed out of re-reading the capture file; the
5259 capture file has been closed - just free the capture file name
5260 string and return (without changing the last containing
5266 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
5267 Instead, the file was left open, so we should restore "cf->is_tempfile"
5270 XXX - change the menu? Presumably "cf_open()" will do that;
5271 make sure it does! */
5272 cf->is_tempfile = is_tempfile;
5274 /* "cf_open()" made a copy of the file name we handed it, so
5275 we should free up our copy. */
5285 * indent-tabs-mode: nil
5288 * ex: set shiftwidth=2 tabstop=8 expandtab:
5289 * :indentSize=2:tabSize=8:noTabs=true: