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.
42 #include <wsutil/tempfile.h>
43 #include <wsutil/file_util.h>
44 #include <wsutil/filesystem.h>
45 #include <wsutil/ws_version_info.h>
47 #include <wiretap/merge.h>
49 #include <epan/exceptions.h>
50 #include <epan/epan-int.h>
51 #include <epan/epan.h>
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include <epan/expert.h>
56 #include <epan/prefs.h>
57 #include <epan/dfilter/dfilter.h>
58 #include <epan/epan_dissect.h>
60 #include <epan/dissectors/packet-data.h>
61 #include <epan/dissectors/packet-ber.h>
62 #include <epan/timestamp.h>
63 #include <epan/dfilter/dfilter-macro.h>
64 #include <epan/strutil.h>
65 #include <epan/addr_resolv.h>
68 #include "color_filters.h"
72 #include "frame_tvbuff.h"
74 #include "ui/alert_box.h"
75 #include "ui/simple_dialog.h"
76 #include "ui/main_statusbar.h"
77 #include "ui/progress_dlg.h"
78 #include "ui/ui_util.h"
80 /* Needed for addrinfo */
81 #ifdef HAVE_SYS_TYPES_H
82 # include <sys/types.h>
85 #ifdef HAVE_SYS_SOCKET_H
86 #include <sys/socket.h>
89 #ifdef HAVE_NETINET_IN_H
90 # include <netinet/in.h>
97 #ifdef HAVE_WINSOCK2_H
98 # include <winsock2.h>
101 #if defined(_WIN32) && defined(INET6)
102 # include <ws2tcpip.h>
106 gboolean auto_scroll_live;
109 static int read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
110 column_info *cinfo, gint64 offset);
112 static void rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect);
119 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
121 static void match_subtree_text(proto_node *node, gpointer data);
122 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
124 static match_result match_narrow_and_wide(capture_file *cf, frame_data *fdata,
126 static match_result match_narrow(capture_file *cf, frame_data *fdata,
128 static match_result match_wide(capture_file *cf, frame_data *fdata,
130 static match_result match_binary(capture_file *cf, frame_data *fdata,
132 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
134 static match_result match_marked(capture_file *cf, frame_data *fdata,
136 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
138 static gboolean find_packet(capture_file *cf,
139 match_result (*match_function)(capture_file *, frame_data *, void *),
140 void *criterion, search_direction dir);
142 static const char *cf_get_user_packet_comment(capture_file *cf, const frame_data *fd);
144 static void cf_open_failure_alert_box(const char *filename, int err,
145 gchar *err_info, gboolean for_writing,
147 static void cf_rename_failure_alert_box(const char *filename, int err);
148 static void cf_close_failure_alert_box(const char *filename, int err);
149 static void ref_time_packets(capture_file *cf);
150 /* Update the progress bar this many times when reading a file. */
151 #define N_PROGBAR_UPDATES 100
152 /* We read around 200k/100ms don't update the progress bar more often than that */
153 #define MIN_QUANTUM 200000
154 #define MIN_NUMBER_OF_PACKET 1500
157 * We could probably use g_signal_...() instead of the callbacks below but that
158 * would require linking our CLI programs to libgobject and creating an object
159 * instance for the signals.
162 cf_callback_t cb_fct;
164 } cf_callback_data_t;
166 static GList *cf_callbacks = NULL;
169 cf_callback_invoke(int event, gpointer data)
171 cf_callback_data_t *cb;
172 GList *cb_item = cf_callbacks;
174 /* there should be at least one interested */
175 g_assert(cb_item != NULL);
177 while (cb_item != NULL) {
178 cb = (cf_callback_data_t *)cb_item->data;
179 cb->cb_fct(event, data, cb->user_data);
180 cb_item = g_list_next(cb_item);
186 cf_callback_add(cf_callback_t func, gpointer user_data)
188 cf_callback_data_t *cb;
190 cb = g_new(cf_callback_data_t,1);
192 cb->user_data = user_data;
194 cf_callbacks = g_list_prepend(cf_callbacks, cb);
198 cf_callback_remove(cf_callback_t func)
200 cf_callback_data_t *cb;
201 GList *cb_item = cf_callbacks;
203 while (cb_item != NULL) {
204 cb = (cf_callback_data_t *)cb_item->data;
205 if (cb->cb_fct == func) {
206 cf_callbacks = g_list_remove(cf_callbacks, cb);
210 cb_item = g_list_next(cb_item);
213 g_assert_not_reached();
217 cf_timestamp_auto_precision(capture_file *cf)
221 /* don't try to get the file's precision if none is opened */
222 if (cf->state == FILE_CLOSED) {
226 /* Set the column widths of those columns that show the time in
227 "command-line-specified" format. */
228 for (i = 0; i < cf->cinfo.num_cols; i++) {
229 if (col_has_time_fmt(&cf->cinfo, i)) {
230 packet_list_resize_column(i);
236 cf_get_computed_elapsed(capture_file *cf)
238 return cf->computed_elapsed;
242 * GLIB_CHECK_VERSION(2,28,0) adds g_get_real_time which could minimize or
245 static void compute_elapsed(capture_file *cf, GTimeVal *start_time)
250 g_get_current_time(&time_now);
252 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
253 time_now.tv_usec - start_time->tv_usec;
255 cf->computed_elapsed = (gulong) (delta_time / 1000); /* ms */
258 static const nstime_t *
259 ws_get_frame_ts(void *data, guint32 frame_num)
261 capture_file *cf = (capture_file *) data;
263 if (cf->prev_dis && cf->prev_dis->num == frame_num)
264 return &cf->prev_dis->abs_ts;
266 if (cf->prev_cap && cf->prev_cap->num == frame_num)
267 return &cf->prev_cap->abs_ts;
270 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
272 return (fd) ? &fd->abs_ts : NULL;
279 ws_get_user_comment(void *data, const frame_data *fd)
281 capture_file *cf = (capture_file *) data;
283 return cf_get_user_packet_comment(cf, fd);
287 ws_epan_new(capture_file *cf)
289 epan_t *epan = epan_new();
292 epan->get_frame_ts = ws_get_frame_ts;
293 epan->get_interface_name = cap_file_get_interface_name;
294 epan->get_user_comment = ws_get_user_comment;
300 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
305 wth = wtap_open_offline(fname, type, err, &err_info, TRUE);
309 /* The open succeeded. Close whatever capture file we had open,
310 and fill in the information for this file. */
313 /* Initialize the packet header. */
314 wtap_phdr_init(&cf->phdr);
316 /* XXX - we really want to initialize this after we've read all
317 the packets, so we know how much we'll ultimately need. */
318 ws_buffer_init(&cf->buf, 1500);
320 /* Create new epan session for dissection.
321 * (The old one was freed in cf_close().)
323 cf->epan = ws_epan_new(cf);
325 /* We're about to start reading the file. */
326 cf->state = FILE_READ_IN_PROGRESS;
331 /* Set the file name because we need it to set the follow stream filter.
332 XXX - is that still true? We need it for other reasons, though,
334 cf->filename = g_strdup(fname);
336 /* Indicate whether it's a permanent or temporary file. */
337 cf->is_tempfile = is_tempfile;
339 /* No user changes yet. */
340 cf->unsaved_changes = FALSE;
342 cf->computed_elapsed = 0;
344 cf->cd_t = wtap_file_type_subtype(cf->wth);
345 cf->open_type = type;
346 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
348 cf->packet_comment_count = 0;
349 cf->displayed_count = 0;
350 cf->marked_count = 0;
351 cf->ignored_count = 0;
352 cf->ref_time_count = 0;
353 cf->drops_known = FALSE;
355 cf->snap = wtap_snapshot_length(cf->wth);
357 /* Snapshot length not known. */
358 cf->has_snap = FALSE;
359 cf->snap = WTAP_MAX_PACKET_SIZE;
363 /* Allocate a frame_data_sequence for the frames in this file */
364 cf->frames = new_frame_data_sequence();
366 nstime_set_zero(&cf->elapsed_time);
372 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
373 cf_timestamp_auto_precision(cf);
375 packet_list_queue_draw();
376 cf_callback_invoke(cf_cb_file_opened, cf);
378 if (cf->cd_t == WTAP_FILE_TYPE_SUBTYPE_BER) {
379 /* tell the BER dissector the file name */
380 ber_set_filename(cf->filename);
383 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
384 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
389 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
394 * Add an encapsulation type to cf->linktypes.
397 cf_add_encapsulation_type(capture_file *cf, int encap)
401 for (i = 0; i < cf->linktypes->len; i++) {
402 if (g_array_index(cf->linktypes, gint, i) == encap)
403 return; /* it's already there */
405 /* It's not already there - add it. */
406 g_array_append_val(cf->linktypes, encap);
409 /* Reset everything to a pristine state */
411 cf_close(capture_file *cf)
413 if (cf->state == FILE_CLOSED)
414 return; /* Nothing to do */
416 /* Die if we're in the middle of reading a file. */
417 g_assert(cf->state != FILE_READ_IN_PROGRESS);
419 cf_callback_invoke(cf_cb_file_closing, cf);
421 /* close things, if not already closed before */
422 color_filters_cleanup();
428 /* We have no file open... */
429 if (cf->filename != NULL) {
430 /* If it's a temporary file, remove it. */
432 ws_unlink(cf->filename);
433 g_free(cf->filename);
436 /* ...which means we have no changes to that file to save. */
437 cf->unsaved_changes = FALSE;
439 /* no open_routine type */
440 cf->open_type = WTAP_TYPE_AUTO;
442 /* Clean up the packet header. */
443 wtap_phdr_cleanup(&cf->phdr);
445 /* Free up the packet buffer. */
446 ws_buffer_free(&cf->buf);
448 dfilter_free(cf->rfcode);
450 if (cf->frames != NULL) {
451 free_frame_data_sequence(cf->frames);
454 #ifdef WANT_PACKET_EDITOR
455 if (cf->edited_frames) {
456 g_tree_destroy(cf->edited_frames);
457 cf->edited_frames = NULL;
460 if (cf->frames_user_comments) {
461 g_tree_destroy(cf->frames_user_comments);
462 cf->frames_user_comments = NULL;
464 cf_unselect_packet(cf); /* nothing to select */
465 cf->first_displayed = 0;
466 cf->last_displayed = 0;
468 /* No frames, no frame selected, no field in that frame selected. */
470 cf->current_frame = 0;
472 cf->finfo_selected = NULL;
474 /* No frame link-layer types, either. */
475 if (cf->linktypes != NULL) {
476 g_array_free(cf->linktypes, TRUE);
477 cf->linktypes = NULL;
480 /* Clear the packet list. */
481 packet_list_freeze();
486 nstime_set_zero(&cf->elapsed_time);
488 reset_tap_listeners();
493 /* We have no file open. */
494 cf->state = FILE_CLOSED;
496 cf_callback_invoke(cf_cb_file_closed, cf);
500 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
504 progbar_val = (gfloat) file_pos / (gfloat) size;
505 if (progbar_val > 1.0) {
507 /* The file probably grew while we were reading it.
508 * Update file size, and try again.
510 size = wtap_file_size(cf->wth, NULL);
513 progbar_val = (gfloat) file_pos / (gfloat) size;
515 /* If it's still > 1, either "wtap_file_size()" failed (in which
516 * case there's not much we can do about it), or the file
517 * *shrank* (in which case there's not much we can do about
518 * it); just clip the progress value at 1.0.
520 if (progbar_val > 1.0f)
524 g_snprintf(status_str, status_size,
525 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
526 file_pos / 1024, size / 1024);
532 cf_read(capture_file *cf, gboolean reloading)
537 progdlg_t *progbar = NULL;
542 volatile gboolean create_proto_tree;
546 /* Compile the current display filter.
547 * We assume this will not fail since cf->dfilter is only set in
548 * cf_filter IFF the filter was valid.
550 compiled = dfilter_compile(cf->dfilter, &dfcode);
551 g_assert(!cf->dfilter || (compiled && dfcode));
553 /* Get the union of the flags for all tap listeners. */
554 tap_flags = union_of_tap_listener_flags();
556 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
558 reset_tap_listeners();
560 name_ptr = g_filename_display_basename(cf->filename);
563 cf_callback_invoke(cf_cb_file_reload_started, cf);
565 cf_callback_invoke(cf_cb_file_read_started, cf);
567 /* Record whether the file is compressed.
568 XXX - do we know this at open time? */
569 cf->iscompressed = wtap_iscompressed(cf->wth);
571 /* The packet list window will be empty until the file is completly loaded */
572 packet_list_freeze();
575 g_get_current_time(&start_time);
577 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
581 int displayed_once = 0;
589 gint64 progbar_quantum;
590 gint64 progbar_nextstep;
592 gchar status_str[100];
596 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
598 /* Find the size of the file. */
599 size = wtap_file_size(cf->wth, NULL);
601 /* Update the progress bar when it gets to this value. */
602 progbar_nextstep = 0;
603 /* When we reach the value that triggers a progress bar update,
604 bump that value by this amount. */
606 progbar_quantum = size/N_PROGBAR_UPDATES;
607 if (progbar_quantum < MIN_QUANTUM)
608 progbar_quantum = MIN_QUANTUM;
612 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
615 file_pos = wtap_read_so_far(cf->wth);
617 /* Create the progress bar if necessary.
618 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
620 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
621 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
623 progbar = delayed_create_progress_dlg(cf->window, "Reloading", name_ptr,
624 TRUE, &stop_flag, &start_time, progbar_val);
626 progbar = delayed_create_progress_dlg(cf->window, "Loading", name_ptr,
627 TRUE, &stop_flag, &start_time, progbar_val);
630 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
631 when we update it, we have to run the GTK+ main loop to get it
632 to repaint what's pending, and doing so may involve an "ioctl()"
633 to see if there's any pending input from an X server, and doing
634 that for every packet can be costly, especially on a big file. */
635 if (file_pos >= progbar_nextstep) {
636 if (progbar != NULL) {
637 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
638 /* update the packet bar content on the first run or frequently on very large files */
640 if (progbar_quantum > 500000 || displayed_once == 0) {
641 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
643 packets_bar_update();
646 #endif /* HAVE_LIBPCAP */
647 update_progress_dlg(progbar, progbar_val, status_str);
649 progbar_nextstep += progbar_quantum;
654 /* Well, the user decided to abort the read. He/She will be warned and
655 it might be enough for him/her to work with the already loaded
657 This is especially true for very large capture files, where you don't
658 want to wait loading the whole file (which may last minutes or even
659 hours even on fast machines) just to see that it was the wrong file. */
662 read_packet(cf, dfcode, &edt, cinfo, data_offset);
665 CATCH(OutOfMemoryError) {
666 simple_message_box(ESD_TYPE_ERROR, NULL,
667 "More information and workarounds can be found at\n"
668 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
669 "Sorry, but Wireshark has run out of memory and has to terminate now.");
671 /* Could we close the current capture and free up memory from that? */
673 /* we have to terminate, as we cannot recover from the memory error */
679 /* Free the display name */
682 /* Cleanup and release all dfilter resources */
683 if (dfcode != NULL) {
684 dfilter_free(dfcode);
687 epan_dissect_cleanup(&edt);
689 /* We're done reading the file; destroy the progress bar if it was created. */
691 destroy_progress_dlg(progbar);
693 /* We're done reading sequentially through the file. */
694 cf->state = FILE_READ_DONE;
696 /* Close the sequential I/O side, to free up memory it requires. */
697 wtap_sequential_close(cf->wth);
699 /* Allow the protocol dissectors to free up memory that they
700 * don't need after the sequential run-through of the packets. */
701 postseq_cleanup_all_protocols();
703 /* compute the time it took to load the file */
704 compute_elapsed(cf, &start_time);
706 /* Set the file encapsulation type now; we don't know what it is until
707 we've looked at all the packets, as we don't know until then whether
708 there's more than one type (and thus whether it's
709 WTAP_ENCAP_PER_PACKET). */
710 cf->lnk_t = wtap_file_encap(cf->wth);
712 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
717 cf_callback_invoke(cf_cb_file_reload_finished, cf);
719 cf_callback_invoke(cf_cb_file_read_finished, cf);
721 /* If we have any displayed packets to select, select the first of those
722 packets by making the first row the selected row. */
723 if (cf->first_displayed != 0) {
724 packet_list_select_first_row();
728 simple_message_box(ESD_TYPE_WARN, NULL,
729 "The remaining packets in the file were discarded.\n"
731 "As a lot of packets from the original file will be missing,\n"
732 "remember to be careful when saving the current content to a file.\n",
733 "File loading was cancelled.");
734 return CF_READ_ERROR;
738 /* Put up a message box noting that the read failed somewhere along
739 the line. Don't throw out the stuff we managed to read, though,
743 case WTAP_ERR_UNSUPPORTED:
744 simple_error_message_box(
745 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
750 case WTAP_ERR_UNWRITABLE_ENCAP:
751 simple_error_message_box(
752 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
757 case WTAP_ERR_SHORT_READ:
758 simple_error_message_box(
759 "The capture file appears to have been cut short"
760 " in the middle of a packet.");
763 case WTAP_ERR_BAD_FILE:
764 simple_error_message_box(
765 "The capture file appears to be damaged or corrupt.\n(%s)",
770 case WTAP_ERR_DECOMPRESS:
771 simple_error_message_box(
772 "The compressed capture file appears to be damaged or corrupt.\n"
778 simple_error_message_box(
779 "An error occurred while reading the"
780 " capture file: %s.", wtap_strerror(err));
783 return CF_READ_ERROR;
790 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
793 volatile int newly_displayed_packets = 0;
796 gboolean create_proto_tree;
800 /* Compile the current display filter.
801 * We assume this will not fail since cf->dfilter is only set in
802 * cf_filter IFF the filter was valid.
804 compiled = dfilter_compile(cf->dfilter, &dfcode);
805 g_assert(!cf->dfilter || (compiled && dfcode));
807 /* Get the union of the flags for all tap listeners. */
808 tap_flags = union_of_tap_listener_flags();
810 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
814 packet_list_check_end();
815 /* Don't freeze/thaw the list when doing live capture */
816 /*packet_list_freeze();*/
818 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
820 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
823 gint64 data_offset = 0;
826 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
828 while (to_read != 0) {
829 wtap_cleareof(cf->wth);
830 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
833 if (cf->state == FILE_READ_ABORTED) {
834 /* Well, the user decided to exit Wireshark. Break out of the
835 loop, and let the code below (which is called even if there
836 aren't any packets left to read) exit. */
839 if (read_packet(cf, dfcode, &edt, (column_info *) cinfo, data_offset) != -1) {
840 newly_displayed_packets++;
845 CATCH(OutOfMemoryError) {
846 simple_message_box(ESD_TYPE_ERROR, NULL,
847 "More information and workarounds can be found at\n"
848 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
849 "Sorry, but Wireshark has run out of memory and has to terminate now.");
851 /* Could we close the current capture and free up memory from that? */
852 return CF_READ_ABORTED;
854 /* we have to terminate, as we cannot recover from the memory error */
860 /* Update the file encapsulation; it might have changed based on the
861 packets we've read. */
862 cf->lnk_t = wtap_file_encap(cf->wth);
864 /* Cleanup and release all dfilter resources */
865 if (dfcode != NULL) {
866 dfilter_free(dfcode);
869 epan_dissect_cleanup(&edt);
871 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
872 cf->count, cf->state, *err);*/
874 /* Don't freeze/thaw the list when doing live capture */
875 /*packet_list_thaw();*/
876 /* With the new packet list the first packet
877 * isn't automatically selected.
879 if (!cf->current_frame)
880 packet_list_select_first_row();
882 /* moving to the end of the packet list - if the user requested so and
883 we have some new packets. */
884 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
885 packet_list_moveto_end();
887 if (cf->state == FILE_READ_ABORTED) {
888 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
889 so that our caller can kill off the capture child process;
890 this will cause an EOF on the pipe from the child, so
891 "cf_finish_tail()" will be called, and it will clean up
893 return CF_READ_ABORTED;
894 } else if (*err != 0) {
895 /* We got an error reading the capture file.
896 XXX - pop up a dialog box instead? */
897 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
898 wtap_strerror(*err), err_info, cf->filename);
901 return CF_READ_ERROR;
907 cf_fake_continue_tail(capture_file *cf) {
908 cf->state = FILE_READ_DONE;
912 cf_finish_tail(capture_file *cf, int *err)
919 gboolean create_proto_tree;
923 /* Compile the current display filter.
924 * We assume this will not fail since cf->dfilter is only set in
925 * cf_filter IFF the filter was valid.
927 compiled = dfilter_compile(cf->dfilter, &dfcode);
928 g_assert(!cf->dfilter || (compiled && dfcode));
930 /* Get the union of the flags for all tap listeners. */
931 tap_flags = union_of_tap_listener_flags();
932 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
934 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
936 if (cf->wth == NULL) {
938 return CF_READ_ERROR;
941 packet_list_check_end();
942 /* Don't freeze/thaw the list when doing live capture */
943 /*packet_list_freeze();*/
945 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
947 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
948 if (cf->state == FILE_READ_ABORTED) {
949 /* Well, the user decided to abort the read. Break out of the
950 loop, and let the code below (which is called even if there
951 aren't any packets left to read) exit. */
954 read_packet(cf, dfcode, &edt, cinfo, data_offset);
957 /* Cleanup and release all dfilter resources */
958 if (dfcode != NULL) {
959 dfilter_free(dfcode);
962 epan_dissect_cleanup(&edt);
964 /* Don't freeze/thaw the list when doing live capture */
965 /*packet_list_thaw();*/
967 if (cf->state == FILE_READ_ABORTED) {
968 /* Well, the user decided to abort the read. We're only called
969 when the child capture process closes the pipe to us (meaning
970 it's probably exited), so we can just close the capture
971 file; we return CF_READ_ABORTED so our caller can do whatever
972 is appropriate when that happens. */
974 return CF_READ_ABORTED;
977 if (auto_scroll_live && cf->count != 0)
978 packet_list_moveto_end();
980 /* We're done reading sequentially through the file. */
981 cf->state = FILE_READ_DONE;
983 /* We're done reading sequentially through the file; close the
984 sequential I/O side, to free up memory it requires. */
985 wtap_sequential_close(cf->wth);
987 /* Allow the protocol dissectors to free up memory that they
988 * don't need after the sequential run-through of the packets. */
989 postseq_cleanup_all_protocols();
991 /* Update the file encapsulation; it might have changed based on the
992 packets we've read. */
993 cf->lnk_t = wtap_file_encap(cf->wth);
995 /* Update the details in the file-set dialog, as the capture file
996 * has likely grown since we first stat-ed it */
997 fileset_update_file(cf->filename);
1000 /* We got an error reading the capture file.
1001 XXX - pop up a dialog box? */
1003 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
1004 wtap_strerror(*err), err_info, 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;
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_UNWRITABLE_ENCAP:
1530 simple_error_message_box(
1531 "The capture file %s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1532 display_basename, err_info);
1536 case WTAP_ERR_SHORT_READ:
1537 simple_error_message_box(
1538 "The capture file %s appears to have been cut short"
1539 " in the middle of a packet.", display_basename);
1542 case WTAP_ERR_BAD_FILE:
1543 simple_error_message_box(
1544 "The capture file %s appears to be damaged or corrupt.\n(%s)",
1545 display_basename, err_info);
1549 case WTAP_ERR_DECOMPRESS:
1550 simple_error_message_box(
1551 "The compressed capture file %s appears to be damaged or corrupt.\n"
1552 "(%s)", display_basename, err_info);
1557 simple_error_message_box(
1558 "An error occurred while reading the"
1559 " capture file %s: %s.",
1560 display_basename, wtap_strerror(read_err));
1563 g_free(display_basename);
1568 if (got_write_error) {
1569 /* Put up an alert box for the write error. */
1570 if (write_err < 0) {
1571 /* Wiretap error. */
1572 switch (write_err) {
1574 case WTAP_ERR_UNWRITABLE_ENCAP:
1576 * This is a problem with the particular frame we're writing and
1577 * the file type and subtype we're writing; note that, and report
1578 * the frame number and file type/subtype.
1580 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1581 simple_error_message_box(
1582 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1583 in_file ? in_file->packet_num : 0, display_basename,
1584 wtap_file_type_subtype_string(file_type));
1585 g_free(display_basename);
1588 case WTAP_ERR_PACKET_TOO_LARGE:
1590 * This is a problem with the particular frame we're writing and
1591 * the file type and subtype we're writing; note that, and report
1592 * the frame number and file type/subtype.
1594 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1595 simple_error_message_box(
1596 "Frame %u of \"%s\" is too large for a \"%s\" file.",
1597 in_file ? in_file->packet_num : 0, display_basename,
1598 wtap_file_type_subtype_string(file_type));
1599 g_free(display_basename);
1602 case WTAP_ERR_UNWRITABLE_REC_TYPE:
1604 * This is a problem with the particular record we're writing and
1605 * the file type and subtype we're writing; note that, and report
1606 * the record number and file type/subtype.
1608 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1609 simple_error_message_box(
1610 "Record %u of \"%s\" has a record type that can't be saved in a \"%s\" file.",
1611 in_file ? in_file->packet_num : 0, display_basename,
1612 wtap_file_type_subtype_string(file_type));
1613 g_free(display_basename);
1616 case WTAP_ERR_UNWRITABLE_REC_DATA:
1618 * This is a problem with the particular record we're writing and
1619 * the file type and subtype we're writing; note that, and report
1620 * the frame number and file type/subtype.
1622 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1623 simple_error_message_box(
1624 "Record %u of \"%s\" has data that can't be saved in a \"%s\" file.\n(%s)",
1625 in_file ? in_file->packet_num : 0, display_basename,
1626 wtap_file_type_subtype_string(file_type),
1628 g_free(write_err_info);
1629 g_free(display_basename);
1633 display_basename = g_filename_display_basename(out_filename);
1634 simple_error_message_box(
1635 "An error occurred while writing to the file \"%s\": %s.",
1636 out_filename, wtap_strerror(write_err));
1637 g_free(display_basename);
1642 write_failure_alert_box(out_filename, write_err);
1646 if (got_read_error || got_write_error || stop_flag) {
1647 /* Callers aren't expected to treat an error or an explicit abort
1648 differently - we put up error dialogs ourselves, so they don't
1656 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1658 const char *filter_new = dftext ? dftext : "";
1659 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1661 GTimeVal start_time;
1663 /* if new filter equals old one, do nothing unless told to do so */
1664 if (!force && strcmp(filter_new, filter_old) == 0) {
1670 if (dftext == NULL) {
1671 /* The new filter is an empty filter (i.e., display all packets).
1672 * so leave dfcode==NULL
1676 * We have a filter; make a copy of it (as we'll be saving it),
1677 * and try to compile it.
1679 dftext = g_strdup(dftext);
1680 if (!dfilter_compile(dftext, &dfcode)) {
1681 /* The attempt failed; report an error. */
1682 simple_message_box(ESD_TYPE_ERROR, NULL,
1683 "See the help for a description of the display filter syntax.",
1684 "\"%s\" isn't a valid display filter: %s",
1685 dftext, dfilter_error_msg);
1691 if (dfcode == NULL) {
1692 /* Yes - free the filter text, and set it to null. */
1698 /* We have a valid filter. Replace the current filter. */
1699 g_free(cf->dfilter);
1700 cf->dfilter = dftext;
1701 g_get_current_time(&start_time);
1704 /* Now rescan the packet list, applying the new filter, but not
1705 throwing away information constructed on a previous pass. */
1706 if (dftext == NULL) {
1707 rescan_packets(cf, "Resetting", "Filter", FALSE);
1709 rescan_packets(cf, "Filtering", dftext, FALSE);
1712 /* Cleanup and release all dfilter resources */
1713 dfilter_free(dfcode);
1719 cf_reftime_packets(capture_file *cf)
1721 ref_time_packets(cf);
1725 cf_redissect_packets(capture_file *cf)
1727 if (cf->state != FILE_CLOSED) {
1728 rescan_packets(cf, "Reprocessing", "all packets", TRUE);
1733 cf_read_record_r(capture_file *cf, const frame_data *fdata,
1734 struct wtap_pkthdr *phdr, Buffer *buf)
1738 gchar *display_basename;
1740 #ifdef WANT_PACKET_EDITOR
1741 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1742 if (G_UNLIKELY(fdata->file_off == -1)) {
1743 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1746 simple_error_message_box("fdata->file_off == -1, but can't find modified frame.");
1750 *phdr = frame->phdr;
1751 ws_buffer_assure_space(buf, frame->phdr.caplen);
1752 memcpy(ws_buffer_start_ptr(buf), frame->pd, frame->phdr.caplen);
1757 if (!wtap_seek_read(cf->wth, fdata->file_off, phdr, buf, &err, &err_info)) {
1758 display_basename = g_filename_display_basename(cf->filename);
1761 case WTAP_ERR_UNWRITABLE_ENCAP:
1762 simple_error_message_box("The file \"%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1763 display_basename, err_info);
1767 case WTAP_ERR_BAD_FILE:
1768 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1769 display_basename, wtap_strerror(err), err_info);
1774 simple_error_message_box(
1775 "An error occurred while reading from the file \"%s\": %s.",
1776 display_basename, wtap_strerror(err));
1779 g_free(display_basename);
1786 cf_read_record(capture_file *cf, frame_data *fdata)
1788 return cf_read_record_r(cf, fdata, &cf->phdr, &cf->buf);
1791 /* Rescan the list of packets, reconstructing the CList.
1793 "action" describes why we're doing this; it's used in the progress
1796 "action_item" describes what we're doing; it's used in the progress
1799 "redissect" is TRUE if we need to make the dissectors reconstruct
1800 any state information they have (because a preference that affects
1801 some dissector has changed, meaning some dissector might construct
1802 its state differently from the way it was constructed the last time). */
1804 rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect)
1806 /* Rescan packets new packet list */
1809 progdlg_t *progbar = NULL;
1812 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1813 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1814 gboolean selected_frame_seen;
1816 GTimeVal start_time;
1817 gchar status_str[100];
1818 int progbar_nextstep;
1819 int progbar_quantum;
1823 gboolean create_proto_tree;
1825 gboolean add_to_packet_list = FALSE;
1827 guint32 frames_count;
1829 /* Compile the current display filter.
1830 * We assume this will not fail since cf->dfilter is only set in
1831 * cf_filter IFF the filter was valid.
1833 compiled = dfilter_compile(cf->dfilter, &dfcode);
1834 g_assert(!cf->dfilter || (compiled && dfcode));
1836 /* Get the union of the flags for all tap listeners. */
1837 tap_flags = union_of_tap_listener_flags();
1838 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1840 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
1842 reset_tap_listeners();
1843 /* Which frame, if any, is the currently selected frame?
1844 XXX - should the selected frame or the focus frame be the "current"
1845 frame, that frame being the one from which "Find Frame" searches
1847 selected_frame = cf->current_frame;
1849 /* Mark frame num as not found */
1850 selected_frame_num = -1;
1852 /* Freeze the packet list while we redo it, so we don't get any
1853 screen updates while it happens. */
1854 packet_list_freeze();
1857 /* We need to re-initialize all the state information that protocols
1858 keep, because some preference that controls a dissector has changed,
1859 which might cause the state information to be constructed differently
1860 by that dissector. */
1862 /* We might receive new packets while redissecting, and we don't
1863 want to dissect those before their time. */
1864 cf->redissecting = TRUE;
1866 /* 'reset' dissection session */
1867 epan_free(cf->epan);
1868 cf->epan = ws_epan_new(cf);
1869 cf->cinfo.epan = cf->epan;
1871 /* We need to redissect the packets so we have to discard our old
1872 * packet list store. */
1873 packet_list_clear();
1874 add_to_packet_list = TRUE;
1877 /* We don't yet know which will be the first and last frames displayed. */
1878 cf->first_displayed = 0;
1879 cf->last_displayed = 0;
1881 /* We currently don't display any packets */
1882 cf->displayed_count = 0;
1884 /* Iterate through the list of frames. Call a routine for each frame
1885 to check whether it should be displayed and, if so, add it to
1886 the display list. */
1888 cf->prev_dis = NULL;
1889 cf->prev_cap = NULL;
1892 /* Update the progress bar when it gets to this value. */
1893 progbar_nextstep = 0;
1894 /* When we reach the value that triggers a progress bar update,
1895 bump that value by this amount. */
1896 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1897 /* Count of packets at which we've looked. */
1899 /* Progress so far. */
1903 g_get_current_time(&start_time);
1905 /* no previous row yet */
1906 prev_frame_num = -1;
1909 preceding_frame_num = -1;
1910 preceding_frame = NULL;
1911 following_frame_num = -1;
1912 following_frame = NULL;
1914 selected_frame_seen = FALSE;
1916 frames_count = cf->count;
1918 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
1920 for (framenum = 1; framenum <= frames_count; framenum++) {
1921 fdata = frame_data_sequence_find(cf->frames, framenum);
1923 /* Create the progress bar if necessary.
1924 We check on every iteration of the loop, so that it takes no
1925 longer than the standard time to create it (otherwise, for a
1926 large file, we might take considerably longer than that standard
1927 time in order to get to the next progress bar step). */
1928 if (progbar == NULL)
1929 progbar = delayed_create_progress_dlg(cf->window, action, action_item, TRUE,
1930 &stop_flag, &start_time,
1933 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1934 when we update it, we have to run the GTK+ main loop to get it
1935 to repaint what's pending, and doing so may involve an "ioctl()"
1936 to see if there's any pending input from an X server, and doing
1937 that for every packet can be costly, especially on a big file. */
1938 if (count >= progbar_nextstep) {
1939 /* let's not divide by zero. I should never be started
1940 * with count == 0, so let's assert that
1942 g_assert(cf->count > 0);
1943 progbar_val = (gfloat) count / frames_count;
1945 if (progbar != NULL) {
1946 g_snprintf(status_str, sizeof(status_str),
1947 "%4u of %u frames", count, frames_count);
1948 update_progress_dlg(progbar, progbar_val, status_str);
1951 progbar_nextstep += progbar_quantum;
1955 /* Well, the user decided to abort the filtering. Just stop.
1957 XXX - go back to the previous filter? Users probably just
1958 want not to wait for a filtering operation to finish;
1959 unless we cancel by having no filter, reverting to the
1960 previous filter will probably be even more expensive than
1961 continuing the filtering, as it involves going back to the
1962 beginning and filtering, and even with no filter we currently
1963 have to re-generate the entire clist, which is also expensive.
1965 I'm not sure what Network Monitor does, but it doesn't appear
1966 to give you an unfiltered display if you cancel. */
1973 /* Since all state for the frame was destroyed, mark the frame
1974 * as not visited, free the GSList referring to the state
1975 * data (the per-frame data itself was freed by
1976 * "init_dissection()"), and null out the GSList pointer. */
1977 frame_data_reset(fdata);
1978 frames_count = cf->count;
1981 /* Frame dependencies from the previous dissection/filtering are no longer valid. */
1982 fdata->flags.dependent_of_displayed = 0;
1984 if (!cf_read_record(cf, fdata))
1985 break; /* error reading the frame */
1987 /* If the previous frame is displayed, and we haven't yet seen the
1988 selected frame, remember that frame - it's the closest one we've
1989 yet seen before the selected frame. */
1990 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
1991 preceding_frame_num = prev_frame_num;
1992 preceding_frame = prev_frame;
1995 add_packet_to_packet_list(fdata, cf, &edt, dfcode,
1997 ws_buffer_start_ptr(&cf->buf),
1998 add_to_packet_list);
2000 /* If this frame is displayed, and this is the first frame we've
2001 seen displayed after the selected frame, remember this frame -
2002 it's the closest one we've yet seen at or after the selected
2004 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2005 following_frame_num = fdata->num;
2006 following_frame = fdata;
2008 if (fdata == selected_frame) {
2009 selected_frame_seen = TRUE;
2010 if (fdata->flags.passed_dfilter)
2011 selected_frame_num = fdata->num;
2014 /* Remember this frame - it'll be the previous frame
2015 on the next pass through the loop. */
2016 prev_frame_num = fdata->num;
2020 epan_dissect_cleanup(&edt);
2022 /* We are done redissecting the packet list. */
2023 cf->redissecting = FALSE;
2026 frames_count = cf->count;
2027 /* Clear out what remains of the visited flags and per-frame data
2030 XXX - that may cause various forms of bogosity when dissecting
2031 these frames, as they won't have been seen by this sequential
2032 pass, but the only alternative I see is to keep scanning them
2033 even though the user requested that the scan stop, and that
2034 would leave the user stuck with an Wireshark grinding on
2035 until it finishes. Should we just stick them with that? */
2036 for (; framenum <= frames_count; framenum++) {
2037 fdata = frame_data_sequence_find(cf->frames, framenum);
2038 frame_data_reset(fdata);
2042 /* We're done filtering the packets; destroy the progress bar if it
2044 if (progbar != NULL)
2045 destroy_progress_dlg(progbar);
2047 /* Unfreeze the packet list. */
2048 if (!add_to_packet_list)
2049 packet_list_recreate_visible_rows();
2051 /* Compute the time it took to filter the file */
2052 compute_elapsed(cf, &start_time);
2056 if (selected_frame_num == -1) {
2057 /* The selected frame didn't pass the filter. */
2058 if (selected_frame == NULL) {
2059 /* That's because there *was* no selected frame. Make the first
2060 displayed frame the current frame. */
2061 selected_frame_num = 0;
2063 /* Find the nearest displayed frame to the selected frame (whether
2064 it's before or after that frame) and make that the current frame.
2065 If the next and previous displayed frames are equidistant from the
2066 selected frame, choose the next one. */
2067 g_assert(following_frame == NULL ||
2068 following_frame->num >= selected_frame->num);
2069 g_assert(preceding_frame == NULL ||
2070 preceding_frame->num <= selected_frame->num);
2071 if (following_frame == NULL) {
2072 /* No frame after the selected frame passed the filter, so we
2073 have to select the last displayed frame before the selected
2075 selected_frame_num = preceding_frame_num;
2076 selected_frame = preceding_frame;
2077 } else if (preceding_frame == NULL) {
2078 /* No frame before the selected frame passed the filter, so we
2079 have to select the first displayed frame after the selected
2081 selected_frame_num = following_frame_num;
2082 selected_frame = following_frame;
2084 /* Frames before and after the selected frame passed the filter, so
2085 we'll select the previous frame */
2086 selected_frame_num = preceding_frame_num;
2087 selected_frame = preceding_frame;
2092 if (selected_frame_num == -1) {
2093 /* There are no frames displayed at all. */
2094 cf_unselect_packet(cf);
2096 /* Either the frame that was selected passed the filter, or we've
2097 found the nearest displayed frame to that frame. Select it, make
2098 it the focus row, and make it visible. */
2099 /* Set to invalid to force update of packet list and packet details */
2100 cf->current_row = -1;
2101 if (selected_frame_num == 0) {
2102 packet_list_select_first_row();
2104 if (!packet_list_select_row_from_data(selected_frame)) {
2105 /* We didn't find a row corresponding to this frame.
2106 This means that the frame isn't being displayed currently,
2107 so we can't select it. */
2108 simple_message_box(ESD_TYPE_INFO, NULL,
2109 "The capture file is probably not fully dissected.",
2110 "End of capture exceeded.");
2115 /* Cleanup and release all dfilter resources */
2116 dfilter_free(dfcode);
2121 * Scan trough all frame data and recalculate the ref time
2122 * without rereading the file.
2123 * XXX - do we need a progres bar or is this fast enough?
2126 ref_time_packets(capture_file *cf)
2133 cf->prev_dis = NULL;
2136 for (framenum = 1; framenum <= cf->count; framenum++) {
2137 fdata = frame_data_sequence_find(cf->frames, framenum);
2139 /* just add some value here until we know if it is being displayed or not */
2140 fdata->cum_bytes = cf->cum_bytes + fdata->pkt_len;
2146 /* If we don't have the time stamp of the first packet in the
2147 capture, it's because this is the first packet. Save the time
2148 stamp of this packet as the time stamp of the first packet. */
2149 if (cf->ref == NULL)
2151 /* if this frames is marked as a reference time frame, reset
2152 firstsec and firstusec to this frame */
2153 if (fdata->flags.ref_time)
2156 /* If we don't have the time stamp of the previous displayed packet,
2157 it's because this is the first displayed packet. Save the time
2158 stamp of this packet as the time stamp of the previous displayed
2160 if (cf->prev_dis == NULL) {
2161 cf->prev_dis = fdata;
2164 /* Get the time elapsed between the first packet and this packet. */
2165 fdata->frame_ref_num = (fdata != cf->ref) ? cf->ref->num : 0;
2166 nstime_delta(&rel_ts, &fdata->abs_ts, &cf->ref->abs_ts);
2168 /* If it's greater than the current elapsed time, set the elapsed time
2169 to it (we check for "greater than" so as not to be confused by
2170 time moving backwards). */
2171 if ((gint32)cf->elapsed_time.secs < rel_ts.secs
2172 || ((gint32)cf->elapsed_time.secs == rel_ts.secs && (gint32)cf->elapsed_time.nsecs < rel_ts.nsecs)) {
2173 cf->elapsed_time = rel_ts;
2176 /* If this frame is displayed, get the time elapsed between the
2177 previous displayed packet and this packet. */
2178 if ( fdata->flags.passed_dfilter ) {
2179 fdata->prev_dis_num = cf->prev_dis->num;
2180 cf->prev_dis = fdata;
2186 if ( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ) {
2187 /* This frame either passed the display filter list or is marked as
2188 a time reference frame. All time reference frames are displayed
2189 even if they don't pass the display filter */
2190 if (fdata->flags.ref_time) {
2191 /* if this was a TIME REF frame we should reset the cum_bytes field */
2192 cf->cum_bytes = fdata->pkt_len;
2193 fdata->cum_bytes = cf->cum_bytes;
2195 /* increase cum_bytes with this packets length */
2196 cf->cum_bytes += fdata->pkt_len;
2209 process_specified_records(capture_file *cf, packet_range_t *range,
2210 const char *string1, const char *string2, gboolean terminate_is_stop,
2211 gboolean (*callback)(capture_file *, frame_data *,
2212 struct wtap_pkthdr *, const guint8 *, void *),
2213 void *callback_args)
2218 psp_return_t ret = PSP_FINISHED;
2220 progdlg_t *progbar = NULL;
2223 gboolean progbar_stop_flag;
2224 GTimeVal progbar_start_time;
2225 gchar progbar_status_str[100];
2226 int progbar_nextstep;
2227 int progbar_quantum;
2228 range_process_e process_this;
2229 struct wtap_pkthdr phdr;
2231 wtap_phdr_init(&phdr);
2232 ws_buffer_init(&buf, 1500);
2234 /* Update the progress bar when it gets to this value. */
2235 progbar_nextstep = 0;
2236 /* When we reach the value that triggers a progress bar update,
2237 bump that value by this amount. */
2238 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2239 /* Count of packets at which we've looked. */
2241 /* Progress so far. */
2244 progbar_stop_flag = FALSE;
2245 g_get_current_time(&progbar_start_time);
2248 packet_range_process_init(range);
2250 /* Iterate through all the packets, printing the packets that
2251 were selected by the current display filter. */
2252 for (framenum = 1; framenum <= cf->count; framenum++) {
2253 fdata = frame_data_sequence_find(cf->frames, framenum);
2255 /* Create the progress bar if necessary.
2256 We check on every iteration of the loop, so that it takes no
2257 longer than the standard time to create it (otherwise, for a
2258 large file, we might take considerably longer than that standard
2259 time in order to get to the next progress bar step). */
2260 if (progbar == NULL)
2261 progbar = delayed_create_progress_dlg(cf->window, string1, string2,
2264 &progbar_start_time,
2267 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2268 when we update it, we have to run the GTK+ main loop to get it
2269 to repaint what's pending, and doing so may involve an "ioctl()"
2270 to see if there's any pending input from an X server, and doing
2271 that for every packet can be costly, especially on a big file. */
2272 if (progbar_count >= progbar_nextstep) {
2273 /* let's not divide by zero. I should never be started
2274 * with count == 0, so let's assert that
2276 g_assert(cf->count > 0);
2277 progbar_val = (gfloat) progbar_count / cf->count;
2279 if (progbar != NULL) {
2280 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2281 "%4u of %u packets", progbar_count, cf->count);
2282 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2285 progbar_nextstep += progbar_quantum;
2288 if (progbar_stop_flag) {
2289 /* Well, the user decided to abort the operation. Just stop,
2290 and arrange to return PSP_STOPPED to our caller, so they know
2291 it was stopped explicitly. */
2298 if (range != NULL) {
2299 /* do we have to process this packet? */
2300 process_this = packet_range_process_packet(range, fdata);
2301 if (process_this == range_process_next) {
2302 /* this packet uninteresting, continue with next one */
2304 } else if (process_this == range_processing_finished) {
2305 /* all interesting packets processed, stop the loop */
2310 /* Get the packet */
2311 if (!cf_read_record_r(cf, fdata, &phdr, &buf)) {
2312 /* Attempt to get the packet failed. */
2316 /* Process the packet */
2317 if (!callback(cf, fdata, &phdr, ws_buffer_start_ptr(&buf), callback_args)) {
2318 /* Callback failed. We assume it reported the error appropriately. */
2324 /* We're done printing the packets; destroy the progress bar if
2326 if (progbar != NULL)
2327 destroy_progress_dlg(progbar);
2329 wtap_phdr_cleanup(&phdr);
2330 ws_buffer_free(&buf);
2338 } retap_callback_args_t;
2341 retap_packet(capture_file *cf, frame_data *fdata,
2342 struct wtap_pkthdr *phdr, const guint8 *pd,
2345 retap_callback_args_t *args = (retap_callback_args_t *)argsp;
2347 epan_dissect_run_with_taps(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, args->cinfo);
2348 epan_dissect_reset(&args->edt);
2354 cf_retap_packets(capture_file *cf)
2356 packet_range_t range;
2357 retap_callback_args_t callback_args;
2358 gboolean construct_protocol_tree;
2359 gboolean filtering_tap_listeners;
2363 /* Presumably the user closed the capture file. */
2365 return CF_READ_ABORTED;
2368 /* Do we have any tap listeners with filters? */
2369 filtering_tap_listeners = have_filtering_tap_listeners();
2371 tap_flags = union_of_tap_listener_flags();
2373 /* If any tap listeners have filters, or require the protocol tree,
2374 construct the protocol tree. */
2375 construct_protocol_tree = filtering_tap_listeners ||
2376 (tap_flags & TL_REQUIRES_PROTO_TREE);
2378 /* If any tap listeners require the columns, construct them. */
2379 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2381 /* Reset the tap listeners. */
2382 reset_tap_listeners();
2384 epan_dissect_init(&callback_args.edt, cf->epan, construct_protocol_tree, FALSE);
2386 /* Iterate through the list of packets, dissecting all packets and
2387 re-running the taps. */
2388 packet_range_init(&range, cf);
2389 packet_range_process_init(&range);
2391 ret = process_specified_records(cf, &range, "Recalculating statistics on",
2392 "all packets", TRUE, retap_packet,
2395 epan_dissect_cleanup(&callback_args.edt);
2399 /* Completed successfully. */
2403 /* Well, the user decided to abort the refiltering.
2404 Return CF_READ_ABORTED so our caller knows they did that. */
2405 return CF_READ_ABORTED;
2408 /* Error while retapping. */
2409 return CF_READ_ERROR;
2412 g_assert_not_reached();
2417 print_args_t *print_args;
2418 gboolean print_header_line;
2419 char *header_line_buf;
2420 int header_line_buf_len;
2421 gboolean print_formfeed;
2422 gboolean print_separator;
2426 int num_visible_cols;
2429 } print_callback_args_t;
2432 print_packet(capture_file *cf, frame_data *fdata,
2433 struct wtap_pkthdr *phdr, const guint8 *pd,
2436 print_callback_args_t *args = (print_callback_args_t *)argsp;
2442 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2443 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2445 /* Fill in the column information if we're printing the summary
2447 if (args->print_args->print_summary) {
2448 col_custom_prime_edt(&args->edt, &cf->cinfo);
2449 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2450 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2452 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2454 if (args->print_formfeed) {
2455 if (!new_page(args->print_args->stream))
2458 if (args->print_separator) {
2459 if (!print_line(args->print_args->stream, 0, ""))
2465 * We generate bookmarks, if the output format supports them.
2466 * The name is "__frameN__".
2468 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2470 if (args->print_args->print_summary) {
2471 if (!args->print_args->print_col_headings)
2472 args->print_header_line = FALSE;
2473 if (args->print_header_line) {
2474 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2476 args->print_header_line = FALSE; /* we might not need to print any more */
2478 cp = &args->line_buf[0];
2480 for (i = 0; i < args->num_visible_cols; i++) {
2481 /* Find the length of the string for this column. */
2482 column_len = (int) strlen(cf->cinfo.col_data[args->visible_cols[i]]);
2483 if (args->col_widths[i] > column_len)
2484 column_len = args->col_widths[i];
2486 /* Make sure there's room in the line buffer for the column; if not,
2487 double its length. */
2488 line_len += column_len + 1; /* "+1" for space */
2489 if (line_len > args->line_buf_len) {
2490 cp_off = (int) (cp - args->line_buf);
2491 args->line_buf_len = 2 * line_len;
2492 args->line_buf = (char *)g_realloc(args->line_buf, args->line_buf_len + 1);
2493 cp = args->line_buf + cp_off;
2496 /* Right-justify the packet number column. */
2497 if (cf->cinfo.col_fmt[args->visible_cols[i]] == COL_NUMBER)
2498 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2500 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2502 if (i != args->num_visible_cols - 1)
2508 * Generate a bookmark, using the summary line as the title.
2510 if (!print_bookmark(args->print_args->stream, bookmark_name,
2514 if (!print_line(args->print_args->stream, 0, args->line_buf))
2518 * Generate a bookmark, using "Frame N" as the title, as we're not
2519 * printing the summary line.
2521 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2522 if (!print_bookmark(args->print_args->stream, bookmark_name,
2525 } /* if (print_summary) */
2527 if (args->print_args->print_dissections != print_dissections_none) {
2528 if (args->print_args->print_summary) {
2529 /* Separate the summary line from the tree with a blank line. */
2530 if (!print_line(args->print_args->stream, 0, ""))
2534 /* Print the information in that tree. */
2535 if (!proto_tree_print(args->print_args, &args->edt, NULL, args->print_args->stream))
2538 /* Print a blank line if we print anything after this (aka more than one packet). */
2539 args->print_separator = TRUE;
2541 /* Print a header line if we print any more packet summaries */
2542 if (args->print_args->print_col_headings)
2543 args->print_header_line = TRUE;
2546 if (args->print_args->print_hex) {
2547 if (args->print_args->print_summary || (args->print_args->print_dissections != print_dissections_none)) {
2548 if (!print_line(args->print_args->stream, 0, ""))
2551 /* Print the full packet data as hex. */
2552 if (!print_hex_data(args->print_args->stream, &args->edt))
2555 /* Print a blank line if we print anything after this (aka more than one packet). */
2556 args->print_separator = TRUE;
2558 /* Print a header line if we print any more packet summaries */
2559 if (args->print_args->print_col_headings)
2560 args->print_header_line = TRUE;
2561 } /* if (args->print_args->print_dissections != print_dissections_none) */
2563 epan_dissect_reset(&args->edt);
2565 /* do we want to have a formfeed between each packet from now on? */
2566 if (args->print_args->print_formfeed) {
2567 args->print_formfeed = TRUE;
2573 epan_dissect_reset(&args->edt);
2578 cf_print_packets(capture_file *cf, print_args_t *print_args)
2580 print_callback_args_t callback_args;
2583 int i, cp_off, column_len, line_len;
2584 int num_visible_col = 0, last_visible_col = 0, visible_col_count;
2588 gboolean proto_tree_needed;
2590 callback_args.print_args = print_args;
2591 callback_args.print_header_line = print_args->print_col_headings;
2592 callback_args.header_line_buf = NULL;
2593 callback_args.header_line_buf_len = 256;
2594 callback_args.print_formfeed = FALSE;
2595 callback_args.print_separator = FALSE;
2596 callback_args.line_buf = NULL;
2597 callback_args.line_buf_len = 256;
2598 callback_args.col_widths = NULL;
2599 callback_args.num_visible_cols = 0;
2600 callback_args.visible_cols = NULL;
2602 if (!print_preamble(print_args->stream, cf->filename, get_ws_vcs_version_info())) {
2603 destroy_print_stream(print_args->stream);
2604 return CF_PRINT_WRITE_ERROR;
2607 if (print_args->print_summary) {
2608 /* We're printing packet summaries. Allocate the header line buffer
2609 and get the column widths. */
2610 callback_args.header_line_buf = (char *)g_malloc(callback_args.header_line_buf_len + 1);
2612 /* Find the number of visible columns and the last visible column */
2613 for (i = 0; i < prefs.num_cols; i++) {
2615 clp = g_list_nth(prefs.col_list, i);
2616 if (clp == NULL) /* Sanity check, Invalid column requested */
2619 cfmt = (fmt_data *) clp->data;
2620 if (cfmt->visible) {
2622 last_visible_col = i;
2626 /* Find the widths for each of the columns - maximum of the
2627 width of the title and the width of the data - and construct
2628 a buffer with a line containing the column titles. */
2629 callback_args.num_visible_cols = num_visible_col;
2630 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2631 callback_args.visible_cols = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2632 cp = &callback_args.header_line_buf[0];
2634 visible_col_count = 0;
2635 for (i = 0; i < cf->cinfo.num_cols; i++) {
2637 clp = g_list_nth(prefs.col_list, i);
2638 if (clp == NULL) /* Sanity check, Invalid column requested */
2641 cfmt = (fmt_data *) clp->data;
2642 if (cfmt->visible == FALSE)
2645 /* Save the order of visible columns */
2646 callback_args.visible_cols[visible_col_count] = i;
2648 /* Don't pad the last column. */
2649 if (i == last_visible_col)
2650 callback_args.col_widths[visible_col_count] = 0;
2652 callback_args.col_widths[visible_col_count] = (gint) strlen(cf->cinfo.col_title[i]);
2653 data_width = get_column_char_width(get_column_format(i));
2654 if (data_width > callback_args.col_widths[visible_col_count])
2655 callback_args.col_widths[visible_col_count] = data_width;
2658 /* Find the length of the string for this column. */
2659 column_len = (int) strlen(cf->cinfo.col_title[i]);
2660 if (callback_args.col_widths[i] > column_len)
2661 column_len = callback_args.col_widths[visible_col_count];
2663 /* Make sure there's room in the line buffer for the column; if not,
2664 double its length. */
2665 line_len += column_len + 1; /* "+1" for space */
2666 if (line_len > callback_args.header_line_buf_len) {
2667 cp_off = (int) (cp - callback_args.header_line_buf);
2668 callback_args.header_line_buf_len = 2 * line_len;
2669 callback_args.header_line_buf = (char *)g_realloc(callback_args.header_line_buf,
2670 callback_args.header_line_buf_len + 1);
2671 cp = callback_args.header_line_buf + cp_off;
2674 /* Right-justify the packet number column. */
2675 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2676 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2678 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2680 if (i != cf->cinfo.num_cols - 1)
2683 visible_col_count++;
2687 /* Now start out the main line buffer with the same length as the
2688 header line buffer. */
2689 callback_args.line_buf_len = callback_args.header_line_buf_len;
2690 callback_args.line_buf = (char *)g_malloc(callback_args.line_buf_len + 1);
2691 } /* if (print_summary) */
2693 /* Create the protocol tree, and make it visible, if we're printing
2694 the dissection or the hex data.
2695 XXX - do we need it if we're just printing the hex data? */
2697 callback_args.print_args->print_dissections != print_dissections_none ||
2698 callback_args.print_args->print_hex ||
2699 have_custom_cols(&cf->cinfo);
2700 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2702 /* Iterate through the list of packets, printing the packets we were
2704 ret = process_specified_records(cf, &print_args->range, "Printing",
2705 "selected packets", TRUE, print_packet,
2707 epan_dissect_cleanup(&callback_args.edt);
2708 g_free(callback_args.header_line_buf);
2709 g_free(callback_args.line_buf);
2710 g_free(callback_args.col_widths);
2711 g_free(callback_args.visible_cols);
2716 /* Completed successfully. */
2720 /* Well, the user decided to abort the 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. */
2729 /* Error while printing.
2731 XXX - note that what got generated before they did that
2732 will get printed if we're piping to a print program; we'd
2733 have to write to a file and then hand that to the print
2734 program to make it actually not print anything. */
2735 destroy_print_stream(print_args->stream);
2736 return CF_PRINT_WRITE_ERROR;
2739 if (!print_finale(print_args->stream)) {
2740 destroy_print_stream(print_args->stream);
2741 return CF_PRINT_WRITE_ERROR;
2744 if (!destroy_print_stream(print_args->stream))
2745 return CF_PRINT_WRITE_ERROR;
2753 } write_packet_callback_args_t;
2756 write_pdml_packet(capture_file *cf, frame_data *fdata,
2757 struct wtap_pkthdr *phdr, const guint8 *pd,
2760 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2762 /* Create the protocol tree, but don't fill in the column information. */
2763 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2765 /* Write out the information in that tree. */
2766 write_pdml_proto_tree(&args->edt, args->fh);
2768 epan_dissect_reset(&args->edt);
2770 return !ferror(args->fh);
2774 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2776 write_packet_callback_args_t callback_args;
2780 fh = ws_fopen(print_args->file, "w");
2782 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2784 write_pdml_preamble(fh, cf->filename);
2787 return CF_PRINT_WRITE_ERROR;
2790 callback_args.fh = fh;
2791 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2793 /* Iterate through the list of packets, printing the packets we were
2795 ret = process_specified_records(cf, &print_args->range, "Writing PDML",
2796 "selected packets", TRUE,
2797 write_pdml_packet, &callback_args);
2799 epan_dissect_cleanup(&callback_args.edt);
2804 /* Completed successfully. */
2808 /* Well, the user decided to abort the printing. */
2812 /* Error while printing. */
2814 return CF_PRINT_WRITE_ERROR;
2817 write_pdml_finale(fh);
2820 return CF_PRINT_WRITE_ERROR;
2823 /* XXX - check for an error */
2830 write_psml_packet(capture_file *cf, frame_data *fdata,
2831 struct wtap_pkthdr *phdr, const guint8 *pd,
2834 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2836 /* Fill in the column information */
2837 col_custom_prime_edt(&args->edt, &cf->cinfo);
2838 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2839 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2841 /* Write out the column information. */
2842 write_psml_columns(&args->edt, args->fh);
2844 epan_dissect_reset(&args->edt);
2846 return !ferror(args->fh);
2850 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2852 write_packet_callback_args_t callback_args;
2856 gboolean proto_tree_needed;
2858 fh = ws_fopen(print_args->file, "w");
2860 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2862 write_psml_preamble(&cf->cinfo, fh);
2865 return CF_PRINT_WRITE_ERROR;
2868 callback_args.fh = fh;
2870 /* Fill in the column information, only create the protocol tree
2871 if having custom columns. */
2872 proto_tree_needed = have_custom_cols(&cf->cinfo);
2873 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2875 /* Iterate through the list of packets, printing the packets we were
2877 ret = process_specified_records(cf, &print_args->range, "Writing PSML",
2878 "selected packets", TRUE,
2879 write_psml_packet, &callback_args);
2881 epan_dissect_cleanup(&callback_args.edt);
2886 /* Completed successfully. */
2890 /* Well, the user decided to abort the printing. */
2894 /* Error while printing. */
2896 return CF_PRINT_WRITE_ERROR;
2899 write_psml_finale(fh);
2902 return CF_PRINT_WRITE_ERROR;
2905 /* XXX - check for an error */
2912 write_csv_packet(capture_file *cf, frame_data *fdata,
2913 struct wtap_pkthdr *phdr, const guint8 *pd,
2916 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2918 /* Fill in the column information */
2919 col_custom_prime_edt(&args->edt, &cf->cinfo);
2920 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2921 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2923 /* Write out the column information. */
2924 write_csv_columns(&args->edt, args->fh);
2926 epan_dissect_reset(&args->edt);
2928 return !ferror(args->fh);
2932 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2934 write_packet_callback_args_t callback_args;
2935 gboolean proto_tree_needed;
2939 fh = ws_fopen(print_args->file, "w");
2941 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2943 write_csv_column_titles(&cf->cinfo, fh);
2946 return CF_PRINT_WRITE_ERROR;
2949 callback_args.fh = fh;
2951 /* only create the protocol tree if having custom columns. */
2952 proto_tree_needed = have_custom_cols(&cf->cinfo);
2953 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2955 /* Iterate through the list of packets, printing the packets we were
2957 ret = process_specified_records(cf, &print_args->range, "Writing CSV",
2958 "selected packets", TRUE,
2959 write_csv_packet, &callback_args);
2961 epan_dissect_cleanup(&callback_args.edt);
2966 /* Completed successfully. */
2970 /* Well, the user decided to abort the printing. */
2974 /* Error while printing. */
2976 return CF_PRINT_WRITE_ERROR;
2979 /* XXX - check for an error */
2986 carrays_write_packet(capture_file *cf, frame_data *fdata,
2987 struct wtap_pkthdr *phdr,
2988 const guint8 *pd, void *argsp)
2990 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2992 epan_dissect_run(&args->edt, cf->cd_t, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2993 write_carrays_hex_data(fdata->num, args->fh, &args->edt);
2994 epan_dissect_reset(&args->edt);
2996 return !ferror(args->fh);
3000 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3002 write_packet_callback_args_t callback_args;
3006 fh = ws_fopen(print_args->file, "w");
3009 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3013 return CF_PRINT_WRITE_ERROR;
3016 callback_args.fh = fh;
3017 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
3019 /* Iterate through the list of packets, printing the packets we were
3021 ret = process_specified_records(cf, &print_args->range,
3023 "selected packets", TRUE,
3024 carrays_write_packet, &callback_args);
3026 epan_dissect_cleanup(&callback_args.edt);
3030 /* Completed successfully. */
3033 /* Well, the user decided to abort the printing. */
3036 /* Error while printing. */
3038 return CF_PRINT_WRITE_ERROR;
3046 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
3047 search_direction dir)
3051 mdata.string = string;
3052 mdata.string_len = strlen(string);
3053 return find_packet(cf, match_protocol_tree, &mdata, dir);
3057 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
3059 mdata->frame_matched = FALSE;
3060 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
3061 mdata->string_len = strlen(mdata->string);
3063 /* Iterate through all the nodes looking for matching text */
3064 proto_tree_children_foreach(tree, match_subtree_text, mdata);
3065 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3069 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3071 match_data *mdata = (match_data *)criterion;
3074 /* Load the frame's data. */
3075 if (!cf_read_record(cf, fdata)) {
3076 /* Attempt to get the packet failed. */
3080 /* Construct the protocol tree, including the displayed text */
3081 epan_dissect_init(&edt, cf->epan, TRUE, TRUE);
3082 /* We don't need the column information */
3083 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3085 /* Iterate through all the nodes, seeing if they have text that matches. */
3087 mdata->frame_matched = FALSE;
3088 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3089 epan_dissect_cleanup(&edt);
3090 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3094 match_subtree_text(proto_node *node, gpointer data)
3096 match_data *mdata = (match_data *) data;
3097 const gchar *string = mdata->string;
3098 size_t string_len = mdata->string_len;
3099 capture_file *cf = mdata->cf;
3100 field_info *fi = PNODE_FINFO(node);
3101 gchar label_str[ITEM_LABEL_LENGTH];
3108 /* dissection with an invisible proto tree? */
3111 if (mdata->frame_matched) {
3112 /* We already had a match; don't bother doing any more work. */
3116 /* Don't match invisible entries. */
3117 if (PROTO_ITEM_IS_HIDDEN(node))
3120 /* was a free format label produced? */
3122 label_ptr = fi->rep->representation;
3124 /* no, make a generic label */
3125 label_ptr = label_str;
3126 proto_item_fill_label(fi, label_str);
3129 /* Does that label match? */
3130 label_len = strlen(label_ptr);
3131 for (i = 0; i < label_len; i++) {
3132 c_char = label_ptr[i];
3134 c_char = toupper(c_char);
3135 if (c_char == string[c_match]) {
3137 if (c_match == string_len) {
3138 /* No need to look further; we have a match */
3139 mdata->frame_matched = TRUE;
3147 /* Recurse into the subtree, if it exists */
3148 if (node->first_child != NULL)
3149 proto_tree_children_foreach(node, match_subtree_text, mdata);
3153 cf_find_packet_summary_line(capture_file *cf, const char *string,
3154 search_direction dir)
3158 mdata.string = string;
3159 mdata.string_len = strlen(string);
3160 return find_packet(cf, match_summary_line, &mdata, dir);
3164 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3166 match_data *mdata = (match_data *)criterion;
3167 const gchar *string = mdata->string;
3168 size_t string_len = mdata->string_len;
3170 const char *info_column;
3171 size_t info_column_len;
3172 match_result result = MR_NOTMATCHED;
3178 /* Load the frame's data. */
3179 if (!cf_read_record(cf, fdata)) {
3180 /* Attempt to get the packet failed. */
3184 /* Don't bother constructing the protocol tree */
3185 epan_dissect_init(&edt, cf->epan, FALSE, FALSE);
3186 /* Get the column information */
3187 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata,
3190 /* Find the Info column */
3191 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3192 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3193 /* Found it. See if we match. */
3194 info_column = edt.pi.cinfo->col_data[colx];
3195 info_column_len = strlen(info_column);
3196 for (i = 0; i < info_column_len; i++) {
3197 c_char = info_column[i];
3199 c_char = toupper(c_char);
3200 if (c_char == string[c_match]) {
3202 if (c_match == string_len) {
3203 result = MR_MATCHED;
3212 epan_dissect_cleanup(&edt);
3219 } cbs_t; /* "Counted byte string" */
3223 * The current match_* routines only support ASCII case insensitivity and don't
3224 * convert UTF-8 inputs to UTF-16 for matching.
3226 * We could modify them to use the GLib Unicode routines or the International
3227 * Components for Unicode library but it's not apparent that we could do so
3228 * without consuming a lot more CPU and memory or that searching would be
3229 * significantly better.
3233 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
3234 search_direction dir)
3239 info.data_len = string_size;
3241 /* String or hex search? */
3243 /* String search - what type of string? */
3244 switch (cf->scs_type) {
3246 case SCS_NARROW_AND_WIDE:
3247 return find_packet(cf, match_narrow_and_wide, &info, dir);
3250 return find_packet(cf, match_narrow, &info, dir);
3253 return find_packet(cf, match_wide, &info, dir);
3256 g_assert_not_reached();
3260 return find_packet(cf, match_binary, &info, dir);
3264 match_narrow_and_wide(capture_file *cf, frame_data *fdata, void *criterion)
3266 cbs_t *info = (cbs_t *)criterion;
3267 const guint8 *ascii_text = info->data;
3268 size_t textlen = info->data_len;
3269 match_result result;
3276 /* Load the frame's data. */
3277 if (!cf_read_record(cf, fdata)) {
3278 /* Attempt to get the packet failed. */
3282 result = MR_NOTMATCHED;
3283 buf_len = fdata->cap_len;
3284 pd = ws_buffer_start_ptr(&cf->buf);
3286 while (i < buf_len) {
3289 c_char = toupper(c_char);
3290 if (c_char != '\0') {
3291 if (c_char == ascii_text[c_match]) {
3293 if (c_match == textlen) {
3294 result = MR_MATCHED;
3295 cf->search_pos = i; /* Save the position of the last character
3296 for highlighting the field. */
3301 g_assert(i>=c_match);
3302 i -= (guint32)c_match;
3312 match_narrow(capture_file *cf, frame_data *fdata, void *criterion)
3315 cbs_t *info = (cbs_t *)criterion;
3316 const guint8 *ascii_text = info->data;
3317 size_t textlen = info->data_len;
3318 match_result result;
3324 /* Load the frame's data. */
3325 if (!cf_read_record(cf, fdata)) {
3326 /* Attempt to get the packet failed. */
3330 result = MR_NOTMATCHED;
3331 buf_len = fdata->cap_len;
3332 pd = ws_buffer_start_ptr(&cf->buf);
3334 while (i < buf_len) {
3337 c_char = toupper(c_char);
3338 if (c_char == ascii_text[c_match]) {
3340 if (c_match == textlen) {
3341 result = MR_MATCHED;
3342 cf->search_pos = i; /* Save the position of the last character
3343 for highlighting the field. */
3348 g_assert(i>=c_match);
3349 i -= (guint32)c_match;
3359 match_wide(capture_file *cf, frame_data *fdata, void *criterion)
3361 cbs_t *info = (cbs_t *)criterion;
3362 const guint8 *ascii_text = info->data;
3363 size_t textlen = info->data_len;
3364 match_result result;
3371 /* Load the frame's data. */
3372 if (!cf_read_record(cf, fdata)) {
3373 /* Attempt to get the packet failed. */
3377 result = MR_NOTMATCHED;
3378 buf_len = fdata->cap_len;
3379 pd = ws_buffer_start_ptr(&cf->buf);
3381 while (i < buf_len) {
3384 c_char = toupper(c_char);
3385 if (c_char == ascii_text[c_match]) {
3387 if (c_match == textlen) {
3388 result = MR_MATCHED;
3389 cf->search_pos = i; /* Save the position of the last character
3390 for highlighting the field. */
3396 g_assert(i>=(c_match*2));
3397 i -= (guint32)c_match*2;
3406 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3408 cbs_t *info = (cbs_t *)criterion;
3409 const guint8 *binary_data = info->data;
3410 size_t datalen = info->data_len;
3411 match_result result;
3417 /* Load the frame's data. */
3418 if (!cf_read_record(cf, fdata)) {
3419 /* Attempt to get the packet failed. */
3423 result = MR_NOTMATCHED;
3424 buf_len = fdata->cap_len;
3425 pd = ws_buffer_start_ptr(&cf->buf);
3427 while (i < buf_len) {
3428 if (pd[i] == binary_data[c_match]) {
3430 if (c_match == datalen) {
3431 result = MR_MATCHED;
3432 cf->search_pos = i; /* Save the position of the last character
3433 for highlighting the field. */
3438 g_assert(i>=c_match);
3439 i -= (guint32)c_match;
3448 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3449 search_direction dir)
3451 return find_packet(cf, match_dfilter, sfcode, dir);
3455 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3456 search_direction dir)
3461 if (!dfilter_compile(filter, &sfcode)) {
3463 * XXX - this shouldn't happen, as the filter string is machine
3468 if (sfcode == NULL) {
3470 * XXX - this shouldn't happen, as the filter string is machine
3475 result = find_packet(cf, match_dfilter, sfcode, dir);
3476 dfilter_free(sfcode);
3481 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3483 dfilter_t *sfcode = (dfilter_t *)criterion;
3485 match_result result;
3487 /* Load the frame's data. */
3488 if (!cf_read_record(cf, fdata)) {
3489 /* Attempt to get the packet failed. */
3493 epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
3494 epan_dissect_prime_dfilter(&edt, sfcode);
3495 epan_dissect_run(&edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3496 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3497 epan_dissect_cleanup(&edt);
3502 cf_find_packet_marked(capture_file *cf, search_direction dir)
3504 return find_packet(cf, match_marked, NULL, dir);
3508 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3510 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3514 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3516 return find_packet(cf, match_time_reference, NULL, dir);
3520 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3522 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3526 find_packet(capture_file *cf,
3527 match_result (*match_function)(capture_file *, frame_data *, void *),
3528 void *criterion, search_direction dir)
3530 frame_data *start_fd;
3533 frame_data *new_fd = NULL;
3534 progdlg_t *progbar = NULL;
3539 GTimeVal start_time;
3540 gchar status_str[100];
3541 int progbar_nextstep;
3542 int progbar_quantum;
3544 match_result result;
3546 start_fd = cf->current_frame;
3547 if (start_fd != NULL) {
3548 /* Iterate through the list of packets, starting at the packet we've
3549 picked, calling a routine to run the filter on the packet, see if
3550 it matches, and stop if so. */
3552 framenum = start_fd->num;
3554 /* Update the progress bar when it gets to this value. */
3555 progbar_nextstep = 0;
3556 /* When we reach the value that triggers a progress bar update,
3557 bump that value by this amount. */
3558 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3559 /* Progress so far. */
3563 g_get_current_time(&start_time);
3565 title = cf->sfilter?cf->sfilter:"";
3567 /* Create the progress bar if necessary.
3568 We check on every iteration of the loop, so that it takes no
3569 longer than the standard time to create it (otherwise, for a
3570 large file, we might take considerably longer than that standard
3571 time in order to get to the next progress bar step). */
3572 if (progbar == NULL)
3573 progbar = delayed_create_progress_dlg(cf->window, "Searching", title,
3574 FALSE, &stop_flag, &start_time, progbar_val);
3576 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3577 when we update it, we have to run the GTK+ main loop to get it
3578 to repaint what's pending, and doing so may involve an "ioctl()"
3579 to see if there's any pending input from an X server, and doing
3580 that for every packet can be costly, especially on a big file. */
3581 if (count >= progbar_nextstep) {
3582 /* let's not divide by zero. I should never be started
3583 * with count == 0, so let's assert that
3585 g_assert(cf->count > 0);
3587 progbar_val = (gfloat) count / cf->count;
3589 if (progbar != NULL) {
3590 g_snprintf(status_str, sizeof(status_str),
3591 "%4u of %u packets", count, cf->count);
3592 update_progress_dlg(progbar, progbar_val, status_str);
3595 progbar_nextstep += progbar_quantum;
3599 /* Well, the user decided to abort the search. Go back to the
3600 frame where we started. */
3605 /* Go past the current frame. */
3606 if (dir == SD_BACKWARD) {
3607 /* Go on to the previous frame. */
3608 if (framenum == 1) {
3610 * XXX - other apps have a bit more of a detailed message
3611 * for this, and instead of offering "OK" and "Cancel",
3612 * they offer things such as "Continue" and "Cancel";
3613 * we need an API for popping up alert boxes with
3614 * {Verb} and "Cancel".
3617 if (prefs.gui_find_wrap)
3619 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3620 framenum = cf->count; /* wrap around */
3624 statusbar_push_temporary_msg("Search reached the beginning.");
3625 framenum = start_fd->num; /* stay on previous packet */
3630 /* Go on to the next frame. */
3631 if (framenum == cf->count) {
3632 if (prefs.gui_find_wrap)
3634 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3635 framenum = 1; /* wrap around */
3639 statusbar_push_temporary_msg("Search reached the end.");
3640 framenum = start_fd->num; /* stay on previous packet */
3645 fdata = frame_data_sequence_find(cf->frames, framenum);
3649 /* Is this packet in the display? */
3650 if (fdata->flags.passed_dfilter) {
3651 /* Yes. Does it match the search criterion? */
3652 result = (*match_function)(cf, fdata, criterion);
3653 if (result == MR_ERROR) {
3654 /* Error; our caller has reported the error. Go back to the frame
3655 where we started. */
3658 } else if (result == MR_MATCHED) {
3659 /* Yes. Go to the new frame. */
3665 if (fdata == start_fd) {
3666 /* We're back to the frame we were on originally, and that frame
3667 doesn't match the search filter. The search failed. */
3672 /* We're done scanning the packets; destroy the progress bar if it
3674 if (progbar != NULL)
3675 destroy_progress_dlg(progbar);
3678 if (new_fd != NULL) {
3679 /* Find and select */
3680 cf->search_in_progress = TRUE;
3681 found = packet_list_select_row_from_data(new_fd);
3682 cf->search_in_progress = FALSE;
3683 cf->search_pos = 0; /* Reset the position */
3685 /* We didn't find a row corresponding to this frame.
3686 This means that the frame isn't being displayed currently,
3687 so we can't select it. */
3688 simple_message_box(ESD_TYPE_INFO, NULL,
3689 "The capture file is probably not fully dissected.",
3690 "End of capture exceeded.");
3693 return TRUE; /* success */
3695 return FALSE; /* failure */
3699 cf_goto_frame(capture_file *cf, guint fnumber)
3703 fdata = frame_data_sequence_find(cf->frames, fnumber);
3705 if (fdata == NULL) {
3706 /* we didn't find a packet with that packet number */
3707 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3708 return FALSE; /* we failed to go to that packet */
3710 if (!fdata->flags.passed_dfilter) {
3711 /* that packet currently isn't displayed */
3712 /* XXX - add it to the set of displayed packets? */
3713 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3714 return FALSE; /* we failed to go to that packet */
3717 if (!packet_list_select_row_from_data(fdata)) {
3718 /* We didn't find a row corresponding to this frame.
3719 This means that the frame isn't being displayed currently,
3720 so we can't select it. */
3721 simple_message_box(ESD_TYPE_INFO, NULL,
3722 "The capture file is probably not fully dissected.",
3723 "End of capture exceeded.");
3726 return TRUE; /* we got to that packet */
3730 cf_goto_top_frame(void)
3732 /* Find and select */
3733 packet_list_select_first_row();
3734 return TRUE; /* we got to that packet */
3738 cf_goto_bottom_frame(void)
3740 /* Find and select */
3741 packet_list_select_last_row();
3742 return TRUE; /* we got to that packet */
3746 * Go to frame specified by currently selected protocol tree item.
3749 cf_goto_framenum(capture_file *cf)
3751 header_field_info *hfinfo;
3754 if (cf->finfo_selected) {
3755 hfinfo = cf->finfo_selected->hfinfo;
3757 if (hfinfo->type == FT_FRAMENUM) {
3758 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3760 return cf_goto_frame(cf, framenum);
3767 /* Select the packet on a given row. */
3769 cf_select_packet(capture_file *cf, int row)
3771 epan_dissect_t *old_edt;
3774 /* Get the frame data struct pointer for this frame */
3775 fdata = packet_list_get_row_data(row);
3777 if (fdata == NULL) {
3778 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3779 the first entry is added to it by "real_insert_row()", that row
3780 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3781 our version and the vanilla GTK+ version).
3783 This means that a "select-row" signal is emitted; this causes
3784 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3787 "cf_select_packet()" fetches, above, the data associated with the
3788 row that was selected; however, as "gtk_clist_append()", which
3789 called "real_insert_row()", hasn't yet returned, we haven't yet
3790 associated any data with that row, so we get back a null pointer.
3792 We can't assume that there's only one frame in the frame list,
3793 either, as we may be filtering the display.
3795 We therefore assume that, if "row" is 0, i.e. the first row
3796 is being selected, and "cf->first_displayed" equals
3797 "cf->last_displayed", i.e. there's only one frame being
3798 displayed, that frame is the frame we want.
3800 This means we have to set "cf->first_displayed" and
3801 "cf->last_displayed" before adding the row to the
3802 GtkCList; see the comment in "add_packet_to_packet_list()". */
3804 if (row == 0 && cf->first_displayed == cf->last_displayed)
3805 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3808 /* If fdata _still_ isn't set simply give up. */
3809 if (fdata == NULL) {
3813 /* Get the data in that frame. */
3814 if (!cf_read_record (cf, fdata)) {
3818 /* Record that this frame is the current frame. */
3819 cf->current_frame = fdata;
3820 cf->current_row = row;
3823 /* Create the logical protocol tree. */
3824 /* We don't need the columns here. */
3825 cf->edt = epan_dissect_new(cf->epan, TRUE, TRUE);
3827 tap_build_interesting(cf->edt);
3828 epan_dissect_run(cf->edt, cf->cd_t, &cf->phdr, frame_tvbuff_new_buffer(cf->current_frame, &cf->buf),
3829 cf->current_frame, NULL);
3831 dfilter_macro_build_ftv_cache(cf->edt->tree);
3833 cf_callback_invoke(cf_cb_packet_selected, cf);
3835 if (old_edt != NULL)
3836 epan_dissect_free(old_edt);
3840 /* Unselect the selected packet, if any. */
3842 cf_unselect_packet(capture_file *cf)
3844 epan_dissect_t *old_edt = cf->edt;
3848 /* No packet is selected. */
3849 cf->current_frame = NULL;
3850 cf->current_row = 0;
3852 cf_callback_invoke(cf_cb_packet_unselected, cf);
3854 /* No protocol tree means no selected field. */
3855 cf_unselect_field(cf);
3857 /* Destroy the epan_dissect_t for the unselected packet. */
3858 if (old_edt != NULL)
3859 epan_dissect_free(old_edt);
3862 /* Unset the selected protocol tree field, if any. */
3864 cf_unselect_field(capture_file *cf)
3866 cf->finfo_selected = NULL;
3868 cf_callback_invoke(cf_cb_field_unselected, cf);
3872 * Mark a particular frame.
3875 cf_mark_frame(capture_file *cf, frame_data *frame)
3877 if (! frame->flags.marked) {
3878 frame->flags.marked = TRUE;
3879 if (cf->count > cf->marked_count)
3885 * Unmark a particular frame.
3888 cf_unmark_frame(capture_file *cf, frame_data *frame)
3890 if (frame->flags.marked) {
3891 frame->flags.marked = FALSE;
3892 if (cf->marked_count > 0)
3898 * Ignore a particular frame.
3901 cf_ignore_frame(capture_file *cf, frame_data *frame)
3903 if (! frame->flags.ignored) {
3904 frame->flags.ignored = TRUE;
3905 if (cf->count > cf->ignored_count)
3906 cf->ignored_count++;
3911 * Un-ignore a particular frame.
3914 cf_unignore_frame(capture_file *cf, frame_data *frame)
3916 if (frame->flags.ignored) {
3917 frame->flags.ignored = FALSE;
3918 if (cf->ignored_count > 0)
3919 cf->ignored_count--;
3924 * Read the comment in SHB block
3928 cf_read_shb_comment(capture_file *cf)
3930 wtapng_section_t *shb_inf;
3931 const gchar *temp_str;
3933 /* Get info from SHB */
3934 shb_inf = wtap_file_get_shb_info(cf->wth);
3935 if (shb_inf == NULL)
3937 temp_str = shb_inf->opt_comment;
3945 cf_update_capture_comment(capture_file *cf, gchar *comment)
3947 wtapng_section_t *shb_inf;
3949 /* Get info from SHB */
3950 shb_inf = wtap_file_get_shb_info(cf->wth);
3952 /* See if the comment has changed or not */
3953 if (shb_inf && shb_inf->opt_comment) {
3954 if (strcmp(shb_inf->opt_comment, comment) == 0) {
3963 /* The comment has changed, let's update it */
3964 wtap_write_shb_comment(cf->wth, comment);
3965 /* Mark the file as having unsaved changes */
3966 cf->unsaved_changes = TRUE;
3970 cf_get_user_packet_comment(capture_file *cf, const frame_data *fd)
3972 if (cf->frames_user_comments)
3973 return (const char *)g_tree_lookup(cf->frames_user_comments, fd);
3980 cf_get_comment(capture_file *cf, const frame_data *fd)
3984 /* fetch user comment */
3985 if (fd->flags.has_user_comment)
3986 return g_strdup(cf_get_user_packet_comment(cf, fd));
3988 /* fetch phdr comment */
3989 if (fd->flags.has_phdr_comment) {
3990 struct wtap_pkthdr phdr; /* Packet header */
3991 Buffer buf; /* Packet data */
3993 wtap_phdr_init(&phdr);
3994 ws_buffer_init(&buf, 1500);
3996 if (!cf_read_record_r(cf, fd, &phdr, &buf))
3997 { /* XXX, what we can do here? */ }
3999 comment = phdr.opt_comment;
4000 wtap_phdr_cleanup(&phdr);
4001 ws_buffer_free(&buf);
4008 frame_cmp(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4010 const frame_data *fdata1 = (const frame_data *) a;
4011 const frame_data *fdata2 = (const frame_data *) b;
4013 return (fdata1->num < fdata2->num) ? -1 :
4014 (fdata1->num > fdata2->num) ? 1 :
4019 cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment)
4021 char *pkt_comment = cf_get_comment(cf, fd);
4023 /* Check if the comment has changed */
4024 if (!g_strcmp0(pkt_comment, new_comment)) {
4025 g_free(pkt_comment);
4028 g_free(pkt_comment);
4031 cf->packet_comment_count--;
4034 cf->packet_comment_count++;
4036 fd->flags.has_user_comment = TRUE;
4038 if (!cf->frames_user_comments)
4039 cf->frames_user_comments = g_tree_new_full(frame_cmp, NULL, NULL, g_free);
4041 /* insert new packet comment */
4042 g_tree_replace(cf->frames_user_comments, fd, g_strdup(new_comment));
4044 expert_update_comment_count(cf->packet_comment_count);
4046 /* OK, we have unsaved changes. */
4047 cf->unsaved_changes = TRUE;
4052 * What types of comments does this capture file have?
4055 cf_comment_types(capture_file *cf)
4057 guint32 comment_types = 0;
4059 if (cf_read_shb_comment(cf) != NULL)
4060 comment_types |= WTAP_COMMENT_PER_SECTION;
4061 if (cf->packet_comment_count != 0)
4062 comment_types |= WTAP_COMMENT_PER_PACKET;
4063 return comment_types;
4066 #ifdef WANT_PACKET_EDITOR
4068 g_direct_compare_func(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4079 modified_frame_data_free(gpointer data)
4081 modified_frame_data *mfd = (modified_frame_data *)data;
4088 * Give a frame new, edited data.
4091 cf_set_frame_edited(capture_file *cf, frame_data *fd,
4092 struct wtap_pkthdr *phdr, guint8 *pd)
4094 modified_frame_data *mfd = (modified_frame_data *)g_malloc(sizeof(modified_frame_data));
4099 if (cf->edited_frames == NULL)
4100 cf->edited_frames = g_tree_new_full(g_direct_compare_func, NULL, NULL,
4101 modified_frame_data_free);
4102 g_tree_insert(cf->edited_frames, GINT_TO_POINTER(fd->num), mfd);
4105 /* Mark the file as having unsaved changes */
4106 cf->unsaved_changes = TRUE;
4114 } save_callback_args_t;
4117 * Save a capture to a file, in a particular format, saving either
4118 * all packets, all currently-displayed packets, or all marked packets.
4120 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4121 * up a message box for the failure.
4124 save_record(capture_file *cf, frame_data *fdata,
4125 struct wtap_pkthdr *phdr, const guint8 *pd,
4128 save_callback_args_t *args = (save_callback_args_t *)argsp;
4129 struct wtap_pkthdr hdr;
4132 gchar *display_basename;
4133 const char *pkt_comment;
4135 if (fdata->flags.has_user_comment)
4136 pkt_comment = cf_get_user_packet_comment(cf, fdata);
4138 pkt_comment = phdr->opt_comment;
4140 /* init the wtap header for saving */
4141 /* TODO: reuse phdr */
4142 /* XXX - these are the only flags that correspond to data that we have
4143 in the frame_data structure and that matter on a per-packet basis.
4145 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
4146 and "on the wire" lengths, or it doesn't.
4148 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
4151 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
4152 from the packet flags. */
4153 hdr.rec_type = phdr->rec_type;
4154 hdr.presence_flags = 0;
4155 if (fdata->flags.has_ts)
4156 hdr.presence_flags |= WTAP_HAS_TS;
4157 if (phdr->presence_flags & WTAP_HAS_INTERFACE_ID)
4158 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
4159 if (phdr->presence_flags & WTAP_HAS_PACK_FLAGS)
4160 hdr.presence_flags |= WTAP_HAS_PACK_FLAGS;
4161 hdr.ts.secs = fdata->abs_ts.secs;
4162 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4163 hdr.caplen = phdr->caplen;
4164 hdr.len = phdr->len;
4165 hdr.pkt_encap = fdata->lnk_t;
4167 hdr.interface_id = phdr->interface_id; /* identifier of the interface. */
4169 hdr.pack_flags = phdr->pack_flags;
4170 hdr.opt_comment = g_strdup(pkt_comment);
4173 hdr.pseudo_header = phdr->pseudo_header;
4176 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
4178 /* and save the packet */
4179 if (!wtap_dump(args->pdh, &hdr, pd, &err, &err_info)) {
4181 /* Wiretap error. */
4184 case WTAP_ERR_UNWRITABLE_ENCAP:
4186 * This is a problem with the particular frame we're writing and
4187 * the file type and subtype we're writing; note that, and report
4188 * the frame number and file type/subtype.
4190 simple_error_message_box(
4191 "Frame %u has a network type that can't be saved in a \"%s\" file.",
4192 fdata->num, wtap_file_type_subtype_string(args->file_type));
4195 case WTAP_ERR_PACKET_TOO_LARGE:
4197 * This is a problem with the particular frame we're writing and
4198 * the file type and subtype we're writing; note that, and report
4199 * the frame number and file type/subtype.
4201 simple_error_message_box(
4202 "Frame %u is larger than Wireshark supports in a \"%s\" file.",
4203 fdata->num, wtap_file_type_subtype_string(args->file_type));
4206 case WTAP_ERR_UNWRITABLE_REC_TYPE:
4208 * This is a problem with the particular record we're writing and
4209 * the file type and subtype we're writing; note that, and report
4210 * the record number and file type/subtype.
4212 simple_error_message_box(
4213 "Record %u has a record type that can't be saved in a \"%s\" file.",
4214 fdata->num, wtap_file_type_subtype_string(args->file_type));
4217 case WTAP_ERR_UNWRITABLE_REC_DATA:
4219 * This is a problem with the particular frame we're writing and
4220 * the file type and subtype we're writing; note that, and report
4221 * the frame number and file type/subtype.
4223 simple_error_message_box(
4224 "Record %u has data that can't be saved in a \"%s\" file.\n(%s)",
4225 fdata->num, wtap_file_type_subtype_string(args->file_type),
4231 display_basename = g_filename_display_basename(args->fname);
4232 simple_error_message_box(
4233 "An error occurred while writing to the file \"%s\": %s.",
4234 display_basename, wtap_strerror(err));
4235 g_free(display_basename);
4240 write_failure_alert_box(args->fname, err);
4245 g_free(hdr.opt_comment);
4250 * Can this capture file be written out in any format using Wiretap
4251 * rather than by copying the raw data?
4254 cf_can_write_with_wiretap(capture_file *cf)
4256 /* We don't care whether we support the comments in this file or not;
4257 if we can't, we'll offer the user the option of discarding the
4259 return wtap_dump_can_write(cf->linktypes, 0);
4263 * Should we let the user do a save?
4267 * the file has unsaved changes, and we can save it in some
4268 * format through Wiretap
4272 * the file is a temporary file and has no unsaved changes (so
4273 * that "saving" it just means copying it).
4275 * XXX - we shouldn't allow files to be edited if they can't be saved,
4276 * so cf->unsaved_changes should be true only if the file can be saved.
4278 * We don't care whether we support the comments in this file or not;
4279 * if we can't, we'll offer the user the option of discarding the
4283 cf_can_save(capture_file *cf)
4285 if (cf->unsaved_changes && wtap_dump_can_write(cf->linktypes, 0)) {
4286 /* Saved changes, and we can write it out with Wiretap. */
4290 if (cf->is_tempfile && !cf->unsaved_changes) {
4292 * Temporary file with no unsaved changes, so we can just do a
4298 /* Nothing to save. */
4303 * Should we let the user do a "save as"?
4307 * we can save it in some format through Wiretap
4311 * the file is a temporary file and has no unsaved changes (so
4312 * that "saving" it just means copying it).
4314 * XXX - we shouldn't allow files to be edited if they can't be saved,
4315 * so cf->unsaved_changes should be true only if the file can be saved.
4317 * We don't care whether we support the comments in this file or not;
4318 * if we can't, we'll offer the user the option of discarding the
4322 cf_can_save_as(capture_file *cf)
4324 if (wtap_dump_can_write(cf->linktypes, 0)) {
4325 /* We can write it out with Wiretap. */
4329 if (cf->is_tempfile && !cf->unsaved_changes) {
4331 * Temporary file with no unsaved changes, so we can just do a
4337 /* Nothing to save. */
4342 * Does this file have unsaved data?
4345 cf_has_unsaved_data(capture_file *cf)
4348 * If this is a temporary file, or a file with unsaved changes, it
4351 return cf->is_tempfile || cf->unsaved_changes;
4355 * Quick scan to find packet offsets.
4357 static cf_read_status_t
4358 rescan_file(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
4360 const struct wtap_pkthdr *phdr;
4365 progdlg_t *progbar = NULL;
4369 GTimeVal start_time;
4370 gchar status_str[100];
4371 gint64 progbar_nextstep;
4372 gint64 progbar_quantum;
4377 int displayed_once = 0;
4380 /* Close the old handle. */
4381 wtap_close(cf->wth);
4383 /* Open the new file. */
4384 /* XXX: this will go through all open_routines for a matching one. But right
4385 now rescan_file() is only used when a file is being saved to a different
4386 format than the original, and the user is not given a choice of which
4387 reader to use (only which format to save it in), so doing this makes
4389 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, err, &err_info, TRUE);
4390 if (cf->wth == NULL) {
4391 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
4392 return CF_READ_ERROR;
4395 /* We're scanning a file whose contents should be the same as what
4396 we had before, so we don't discard dissection state etc.. */
4399 /* Set the file name because we need it to set the follow stream filter.
4400 XXX - is that still true? We need it for other reasons, though,
4402 cf->filename = g_strdup(fname);
4404 /* Indicate whether it's a permanent or temporary file. */
4405 cf->is_tempfile = is_tempfile;
4407 /* No user changes yet. */
4408 cf->unsaved_changes = FALSE;
4410 cf->cd_t = wtap_file_type_subtype(cf->wth);
4411 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
4413 cf->snap = wtap_snapshot_length(cf->wth);
4414 if (cf->snap == 0) {
4415 /* Snapshot length not known. */
4416 cf->has_snap = FALSE;
4417 cf->snap = WTAP_MAX_PACKET_SIZE;
4419 cf->has_snap = TRUE;
4421 name_ptr = g_filename_display_basename(cf->filename);
4423 cf_callback_invoke(cf_cb_file_rescan_started, cf);
4425 /* Record whether the file is compressed.
4426 XXX - do we know this at open time? */
4427 cf->iscompressed = wtap_iscompressed(cf->wth);
4429 /* Find the size of the file. */
4430 size = wtap_file_size(cf->wth, NULL);
4432 /* Update the progress bar when it gets to this value. */
4433 progbar_nextstep = 0;
4434 /* When we reach the value that triggers a progress bar update,
4435 bump that value by this amount. */
4437 progbar_quantum = size/N_PROGBAR_UPDATES;
4438 if (progbar_quantum < MIN_QUANTUM)
4439 progbar_quantum = MIN_QUANTUM;
4441 progbar_quantum = 0;
4444 g_get_current_time(&start_time);
4447 phdr = wtap_phdr(cf->wth);
4448 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
4450 fdata = frame_data_sequence_find(cf->frames, framenum);
4451 fdata->file_off = data_offset;
4454 file_pos = wtap_read_so_far(cf->wth);
4456 /* Create the progress bar if necessary.
4457 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
4459 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
4460 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4461 progbar = delayed_create_progress_dlg(cf->window, "Rescanning", name_ptr,
4462 TRUE, &stop_flag, &start_time, progbar_val);
4465 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
4466 when we update it, we have to run the GTK+ main loop to get it
4467 to repaint what's pending, and doing so may involve an "ioctl()"
4468 to see if there's any pending input from an X server, and doing
4469 that for every packet can be costly, especially on a big file. */
4470 if (file_pos >= progbar_nextstep) {
4471 if (progbar != NULL) {
4472 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4473 /* update the packet bar content on the first run or frequently on very large files */
4475 if (progbar_quantum > 500000 || displayed_once == 0) {
4476 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
4478 packets_bar_update();
4481 #endif /* HAVE_LIBPCAP */
4482 update_progress_dlg(progbar, progbar_val, status_str);
4484 progbar_nextstep += progbar_quantum;
4489 /* Well, the user decided to abort the rescan. Sadly, as this
4490 isn't a reread, recovering is difficult, so we'll just
4491 close the current capture. */
4495 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4496 it's not already there.
4497 XXX - yes, this is O(N), so if every packet had a different
4498 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4499 there are probably going to be a small number of encapsulation types
4501 cf_add_encapsulation_type(cf, phdr->pkt_encap);
4504 /* Free the display name */
4507 /* We're done reading the file; destroy the progress bar if it was created. */
4508 if (progbar != NULL)
4509 destroy_progress_dlg(progbar);
4511 /* We're done reading sequentially through the file. */
4512 cf->state = FILE_READ_DONE;
4514 /* Close the sequential I/O side, to free up memory it requires. */
4515 wtap_sequential_close(cf->wth);
4517 /* compute the time it took to load the file */
4518 compute_elapsed(cf, &start_time);
4520 /* Set the file encapsulation type now; we don't know what it is until
4521 we've looked at all the packets, as we don't know until then whether
4522 there's more than one type (and thus whether it's
4523 WTAP_ENCAP_PER_PACKET). */
4524 cf->lnk_t = wtap_file_encap(cf->wth);
4526 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
4529 /* Our caller will give up at this point. */
4530 return CF_READ_ABORTED;
4534 /* Put up a message box noting that the read failed somewhere along
4535 the line. Don't throw out the stuff we managed to read, though,
4539 case WTAP_ERR_UNSUPPORTED:
4540 simple_error_message_box(
4541 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4546 case WTAP_ERR_UNWRITABLE_ENCAP:
4547 simple_error_message_box(
4548 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
4553 case WTAP_ERR_SHORT_READ:
4554 simple_error_message_box(
4555 "The capture file appears to have been cut short"
4556 " in the middle of a packet.");
4559 case WTAP_ERR_BAD_FILE:
4560 simple_error_message_box(
4561 "The capture file appears to be damaged or corrupt.\n(%s)",
4566 case WTAP_ERR_DECOMPRESS:
4567 simple_error_message_box(
4568 "The compressed capture file appears to be damaged or corrupt.\n"
4574 simple_error_message_box(
4575 "An error occurred while reading the"
4576 " capture file: %s.", wtap_strerror(*err));
4579 return CF_READ_ERROR;
4585 cf_save_records(capture_file *cf, const char *fname, guint save_format,
4586 gboolean compressed, gboolean discard_comments,
4587 gboolean dont_reopen)
4590 gchar *fname_new = NULL;
4593 addrinfo_lists_t *addr_lists;
4597 gchar *display_basename;
4604 save_callback_args_t callback_args;
4606 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4608 addr_lists = get_addrinfo_list();
4610 if (save_format == cf->cd_t && compressed == cf->iscompressed
4611 && !discard_comments && !cf->unsaved_changes
4612 && !(addr_lists && wtap_dump_has_name_resolution(save_format))) {
4613 /* We're saving in the format it's already in, and we're
4614 not discarding comments, and there are no changes we have
4615 in memory that aren't saved to the file, and we have no name
4616 resolution blocks to write, so we can just move or copy the raw data. */
4618 if (cf->is_tempfile) {
4619 /* The file being saved is a temporary file from a live
4620 capture, so it doesn't need to stay around under that name;
4621 first, try renaming the capture buffer file to the new name.
4622 This acts as a "safe save", in that, if the file already
4623 exists, the existing file will be removed only if the rename
4626 Sadly, on Windows, as we have the current capture file
4627 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4628 (to cause the rename to remove an existing target), as
4629 done by ws_stdio_rename() (ws_rename() is #defined to
4630 be ws_stdio_rename() on Windows) will fail.
4632 According to the MSDN documentation for CreateFile(), if,
4633 when we open a capture file, we were to directly do a CreateFile(),
4634 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4635 convert it to a file descriptor with _open_osfhandle(),
4636 that would allow the file to be renamed out from under us.
4638 However, that doesn't work in practice. Perhaps the problem
4639 is that the process doing the rename is the process that
4640 has the file open. */
4642 if (ws_rename(cf->filename, fname) == 0) {
4643 /* That succeeded - there's no need to copy the source file. */
4644 how_to_save = SAVE_WITH_MOVE;
4646 if (errno == EXDEV) {
4647 /* They're on different file systems, so we have to copy the
4649 how_to_save = SAVE_WITH_COPY;
4651 /* The rename failed, but not because they're on different
4652 file systems - put up an error message. (Or should we
4653 just punt and try to copy? The only reason why I'd
4654 expect the rename to fail and the copy to succeed would
4655 be if we didn't have permission to remove the file from
4656 the temporary directory, and that might be fixable - but
4657 is it worth requiring the user to go off and fix it?) */
4658 cf_rename_failure_alert_box(fname, errno);
4663 how_to_save = SAVE_WITH_COPY;
4666 /* It's a permanent file, so we should copy it, and not remove the
4668 how_to_save = SAVE_WITH_COPY;
4671 if (how_to_save == SAVE_WITH_COPY) {
4672 /* Copy the file, if we haven't moved it. If we're overwriting
4673 an existing file, we do it with a "safe save", by writing
4674 to a new file and, if the write succeeds, renaming the
4675 new file on top of the old file. */
4676 if (file_exists(fname)) {
4677 fname_new = g_strdup_printf("%s~", fname);
4678 if (!copy_file_binary_mode(cf->filename, fname_new))
4681 if (!copy_file_binary_mode(cf->filename, fname))
4686 /* Either we're saving in a different format or we're saving changes,
4687 such as added, modified, or removed comments, that haven't yet
4688 been written to the underlying file; we can't do that by copying
4689 or moving the capture file, we have to do it by writing the packets
4692 wtapng_section_t *shb_hdr = NULL;
4693 wtapng_iface_descriptions_t *idb_inf = NULL;
4696 shb_hdr = wtap_file_get_shb_info(cf->wth);
4697 idb_inf = wtap_file_get_idb_info(cf->wth);
4699 /* Determine what file encapsulation type we should use. */
4700 encap = wtap_dump_file_encap_type(cf->linktypes);
4702 if (file_exists(fname)) {
4703 /* We're overwriting an existing file; write out to a new file,
4704 and, if that succeeds, rename the new file on top of the
4705 old file. That makes this a "safe save", so that we don't
4706 lose the old file if we have a problem writing out the new
4707 file. (If the existing file is the current capture file,
4708 we *HAVE* to do that, otherwise we're overwriting the file
4709 from which we're reading the packets that we're writing!) */
4710 fname_new = g_strdup_printf("%s~", fname);
4711 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4712 compressed, shb_hdr, idb_inf, &err);
4714 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4715 compressed, shb_hdr, idb_inf, &err);
4721 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4725 /* Add address resolution */
4726 wtap_dump_set_addrinfo_list(pdh, addr_lists);
4728 /* Iterate through the list of packets, processing all the packets. */
4729 callback_args.pdh = pdh;
4730 callback_args.fname = fname;
4731 callback_args.file_type = save_format;
4732 switch (process_specified_records(cf, NULL, "Saving", "packets",
4733 TRUE, save_record, &callback_args)) {
4736 /* Completed successfully. */
4740 /* The user decided to abort the saving.
4741 If we're writing to a temporary file, remove it.
4742 XXX - should we do so even if we're not writing to a
4744 wtap_dump_close(pdh, &err);
4745 if (fname_new != NULL)
4746 ws_unlink(fname_new);
4747 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
4748 return CF_WRITE_ABORTED;
4751 /* Error while saving.
4752 If we're writing to a temporary file, remove it. */
4753 if (fname_new != NULL)
4754 ws_unlink(fname_new);
4755 wtap_dump_close(pdh, &err);
4759 if (!wtap_dump_close(pdh, &err)) {
4760 cf_close_failure_alert_box(fname, err);
4764 how_to_save = SAVE_WITH_WTAP;
4767 if (fname_new != NULL) {
4768 /* We wrote out to fname_new, and should rename it on top of
4769 fname. fname_new is now closed, so that should be possible even
4770 on Windows. However, on Windows, we first need to close whatever
4771 file descriptors we have open for fname. */
4773 wtap_fdclose(cf->wth);
4775 /* Now do the rename. */
4776 if (ws_rename(fname_new, fname) == -1) {
4777 /* Well, the rename failed. */
4778 cf_rename_failure_alert_box(fname, errno);
4780 /* Attempt to reopen the random file descriptor using the
4781 current file's filename. (At this point, the sequential
4782 file descriptor is closed.) */
4783 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4784 /* Oh, well, we're screwed. */
4785 display_basename = g_filename_display_basename(cf->filename);
4786 simple_error_message_box(
4787 file_open_error_message(err, FALSE), display_basename);
4788 g_free(display_basename);
4795 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4796 cf->unsaved_changes = FALSE;
4799 switch (how_to_save) {
4801 case SAVE_WITH_MOVE:
4802 /* We just moved the file, so the wtap structure refers to the
4803 new file, and all the information other than the filename
4804 and the "is temporary" status applies to the new file; just
4806 g_free(cf->filename);
4807 cf->filename = g_strdup(fname);
4808 cf->is_tempfile = FALSE;
4809 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4812 case SAVE_WITH_COPY:
4813 /* We just copied the file, s all the information other than
4814 the wtap structure, the filename, and the "is temporary"
4815 status applies to the new file; just update that. */
4816 wtap_close(cf->wth);
4817 /* Although we're just "copying" and then opening the copy, it will
4818 try all open_routine readers to open the copy, so we need to
4819 reset the cfile's open_type. */
4820 cf->open_type = WTAP_TYPE_AUTO;
4821 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, &err, &err_info, TRUE);
4822 if (cf->wth == NULL) {
4823 cf_open_failure_alert_box(fname, err, err_info, FALSE, 0);
4826 g_free(cf->filename);
4827 cf->filename = g_strdup(fname);
4828 cf->is_tempfile = FALSE;
4830 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4833 case SAVE_WITH_WTAP:
4834 /* Open and read the file we saved to.
4836 XXX - this is somewhat of a waste; we already have the
4837 packets, all this gets us is updated file type information
4838 (which we could just stuff into "cf"), and having the new
4839 file be the one we have opened and from which we're reading
4840 the data, and it means we have to spend time opening and
4841 reading the file, which could be a significant amount of
4842 time if the file is large.
4844 If the capture-file-writing code were to return the
4845 seek offset of each packet it writes, we could save that
4846 in the frame_data structure for the frame, and just open
4847 the file without reading it again...
4849 ...as long as, for gzipped files, the process of writing
4850 out the file *also* generates the information needed to
4851 support fast random access to the compressed file. */
4852 /* rescan_file will cause us to try all open_routines, so
4853 reset cfile's open_type */
4854 cf->open_type = WTAP_TYPE_AUTO;
4855 if (rescan_file(cf, fname, FALSE, &err) != CF_READ_OK) {
4856 /* The rescan failed; just close the file. Either
4857 a dialog was popped up for the failure, so the
4858 user knows what happened, or they stopped the
4859 rescan, in which case they know what happened. */
4865 /* If we were told to discard the comments, do so. */
4866 if (discard_comments) {
4867 /* Remove SHB comment, if any. */
4868 wtap_write_shb_comment(cf->wth, NULL);
4870 /* remove all user comments */
4871 for (framenum = 1; framenum <= cf->count; framenum++) {
4872 fdata = frame_data_sequence_find(cf->frames, framenum);
4874 fdata->flags.has_phdr_comment = FALSE;
4875 fdata->flags.has_user_comment = FALSE;
4878 if (cf->frames_user_comments) {
4879 g_tree_destroy(cf->frames_user_comments);
4880 cf->frames_user_comments = NULL;
4883 cf->packet_comment_count = 0;
4889 if (fname_new != NULL) {
4890 /* We were trying to write to a temporary file; get rid of it if it
4891 exists. (We don't care whether this fails, as, if it fails,
4892 there's not much we can do about it. I guess if it failed for
4893 a reason other than "it doesn't exist", we could report an
4894 error, so the user knows there's a junk file that they might
4895 want to clean up.) */
4896 ws_unlink(fname_new);
4899 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4900 return CF_WRITE_ERROR;
4904 cf_export_specified_packets(capture_file *cf, const char *fname,
4905 packet_range_t *range, guint save_format,
4906 gboolean compressed)
4908 gchar *fname_new = NULL;
4911 save_callback_args_t callback_args;
4912 wtapng_section_t *shb_hdr;
4913 wtapng_iface_descriptions_t *idb_inf;
4916 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4918 packet_range_process_init(range);
4920 /* We're writing out specified packets from the specified capture
4921 file to another file. Even if all captured packets are to be
4922 written, don't special-case the operation - read each packet
4923 and then write it out if it's one of the specified ones. */
4925 shb_hdr = wtap_file_get_shb_info(cf->wth);
4926 idb_inf = wtap_file_get_idb_info(cf->wth);
4928 /* Determine what file encapsulation type we should use. */
4929 encap = wtap_dump_file_encap_type(cf->linktypes);
4931 if (file_exists(fname)) {
4932 /* We're overwriting an existing file; write out to a new file,
4933 and, if that succeeds, rename the new file on top of the
4934 old file. That makes this a "safe save", so that we don't
4935 lose the old file if we have a problem writing out the new
4936 file. (If the existing file is the current capture file,
4937 we *HAVE* to do that, otherwise we're overwriting the file
4938 from which we're reading the packets that we're writing!) */
4939 fname_new = g_strdup_printf("%s~", fname);
4940 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4941 compressed, shb_hdr, idb_inf, &err);
4943 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4944 compressed, shb_hdr, idb_inf, &err);
4950 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4954 /* Add address resolution */
4955 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4957 /* Iterate through the list of packets, processing the packets we were
4960 XXX - we've already called "packet_range_process_init(range)", but
4961 "process_specified_records()" will do it again. Fortunately,
4962 that's harmless in this case, as we haven't done anything to
4963 "range" since we initialized it. */
4964 callback_args.pdh = pdh;
4965 callback_args.fname = fname;
4966 callback_args.file_type = save_format;
4967 switch (process_specified_records(cf, range, "Writing", "specified records",
4968 TRUE, save_record, &callback_args)) {
4971 /* Completed successfully. */
4975 /* The user decided to abort the saving.
4976 If we're writing to a temporary file, remove it.
4977 XXX - should we do so even if we're not writing to a
4979 wtap_dump_close(pdh, &err);
4980 if (fname_new != NULL)
4981 ws_unlink(fname_new);
4982 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4983 return CF_WRITE_ABORTED;
4987 /* Error while saving.
4988 If we're writing to a temporary file, remove it. */
4989 if (fname_new != NULL)
4990 ws_unlink(fname_new);
4991 wtap_dump_close(pdh, &err);
4995 if (!wtap_dump_close(pdh, &err)) {
4996 cf_close_failure_alert_box(fname, err);
5000 if (fname_new != NULL) {
5001 /* We wrote out to fname_new, and should rename it on top of
5002 fname; fname is now closed, so that should be possible even
5003 on Windows. Do the rename. */
5004 if (ws_rename(fname_new, fname) == -1) {
5005 /* Well, the rename failed. */
5006 cf_rename_failure_alert_box(fname, errno);
5011 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
5015 if (fname_new != NULL) {
5016 /* We were trying to write to a temporary file; get rid of it if it
5017 exists. (We don't care whether this fails, as, if it fails,
5018 there's not much we can do about it. I guess if it failed for
5019 a reason other than "it doesn't exist", we could report an
5020 error, so the user knows there's a junk file that they might
5021 want to clean up.) */
5022 ws_unlink(fname_new);
5025 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
5026 return CF_WRITE_ERROR;
5030 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
5031 gboolean for_writing, int file_type)
5033 gchar *display_basename;
5036 /* Wiretap error. */
5037 display_basename = g_filename_display_basename(filename);
5040 case WTAP_ERR_NOT_REGULAR_FILE:
5041 simple_error_message_box(
5042 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
5046 case WTAP_ERR_RANDOM_OPEN_PIPE:
5047 /* Seen only when opening a capture file for reading. */
5048 simple_error_message_box(
5049 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
5050 "To capture from a pipe or FIFO use wireshark -i -",
5054 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
5055 /* Seen only when opening a capture file for reading. */
5056 simple_error_message_box(
5057 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
5061 case WTAP_ERR_UNSUPPORTED:
5062 /* Seen only when opening a capture file for reading. */
5063 simple_error_message_box(
5064 "The file \"%s\" contains record data that Wireshark doesn't support.\n",
5066 display_basename, err_info);
5070 case WTAP_ERR_CANT_WRITE_TO_PIPE:
5071 /* Seen only when opening a capture file for writing. */
5072 simple_error_message_box(
5073 "The file \"%s\" is a pipe, and %s capture files can't be "
5074 "written to a pipe.",
5075 display_basename, wtap_file_type_subtype_string(file_type));
5078 case WTAP_ERR_UNWRITABLE_FILE_TYPE:
5079 /* Seen only when opening a capture file for writing. */
5080 simple_error_message_box(
5081 "Wireshark doesn't support writing capture files in that format.");
5084 case WTAP_ERR_UNWRITABLE_ENCAP:
5086 simple_error_message_box("Wireshark can't save this capture in that format.");
5088 simple_error_message_box(
5089 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
5091 display_basename, err_info);
5096 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
5098 simple_error_message_box(
5099 "Wireshark can't save this capture in that format.");
5101 simple_error_message_box(
5102 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
5107 case WTAP_ERR_BAD_FILE:
5108 /* Seen only when opening a capture file for reading. */
5109 simple_error_message_box(
5110 "The file \"%s\" appears to be damaged or corrupt.\n"
5112 display_basename, err_info);
5116 case WTAP_ERR_CANT_OPEN:
5118 simple_error_message_box(
5119 "The file \"%s\" could not be created for some unknown reason.",
5122 simple_error_message_box(
5123 "The file \"%s\" could not be opened for some unknown reason.",
5128 case WTAP_ERR_SHORT_READ:
5129 simple_error_message_box(
5130 "The file \"%s\" appears to have been cut short"
5131 " in the middle of a packet or other data.",
5135 case WTAP_ERR_SHORT_WRITE:
5136 simple_error_message_box(
5137 "A full header couldn't be written to the file \"%s\".",
5141 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
5142 simple_error_message_box(
5143 "This file type cannot be written as a compressed file.");
5146 case WTAP_ERR_DECOMPRESS:
5147 simple_error_message_box(
5148 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
5149 "(%s)", display_basename, err_info);
5154 simple_error_message_box(
5155 "The file \"%s\" could not be %s: %s.",
5157 for_writing ? "created" : "opened",
5158 wtap_strerror(err));
5161 g_free(display_basename);
5164 open_failure_alert_box(filename, err, for_writing);
5169 * XXX - whether we mention the source pathname, the target pathname,
5170 * or both depends on the error and on what we find if we look for
5171 * one or both of them.
5174 cf_rename_failure_alert_box(const char *filename, int err)
5176 gchar *display_basename;
5178 display_basename = g_filename_display_basename(filename);
5182 /* XXX - should check whether the source exists and, if not,
5183 report it as the problem and, if so, report the destination
5185 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
5190 /* XXX - if we're doing a rename after a safe save, we should
5191 probably say something else. */
5192 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
5197 /* XXX - this should probably mention both the source and destination
5199 simple_error_message_box("The file \"%s\" could not be moved: %s.",
5200 display_basename, wtap_strerror(err));
5203 g_free(display_basename);
5206 /* Check for write errors - if the file is being written to an NFS server,
5207 a write error may not show up until the file is closed, as NFS clients
5208 might not send writes to the server until the "write()" call finishes,
5209 so that the write may fail on the server but the "write()" may succeed. */
5211 cf_close_failure_alert_box(const char *filename, int err)
5213 gchar *display_basename;
5216 /* Wiretap error. */
5217 display_basename = g_filename_display_basename(filename);
5220 case WTAP_ERR_CANT_CLOSE:
5221 simple_error_message_box(
5222 "The file \"%s\" couldn't be closed for some unknown reason.",
5226 case WTAP_ERR_SHORT_WRITE:
5227 simple_error_message_box(
5228 "Not all the packets could be written to the file \"%s\".",
5233 simple_error_message_box(
5234 "An error occurred while closing the file \"%s\": %s.",
5235 display_basename, wtap_strerror(err));
5238 g_free(display_basename);
5241 We assume that a close error from the OS is really a write error. */
5242 write_failure_alert_box(filename, err);
5246 /* Reload the current capture file. */
5248 cf_reload(capture_file *cf) {
5250 gboolean is_tempfile;
5253 /* If the file could be opened, "cf_open()" calls "cf_close()"
5254 to get rid of state for the old capture file before filling in state
5255 for the new capture file. "cf_close()" will remove the file if
5256 it's a temporary file; we don't want that to happen (for one thing,
5257 it'd prevent subsequent reopens from working). Remember whether it's
5258 a temporary file, mark it as not being a temporary file, and then
5259 reopen it as the type of file it was.
5261 Also, "cf_close()" will free "cf->filename", so we must make
5262 a copy of it first. */
5263 filename = g_strdup(cf->filename);
5264 is_tempfile = cf->is_tempfile;
5265 cf->is_tempfile = FALSE;
5266 if (cf_open(cf, filename, cf->open_type, is_tempfile, &err) == CF_OK) {
5267 switch (cf_read(cf, TRUE)) {
5271 /* Just because we got an error, that doesn't mean we were unable
5272 to read any of the file; we handle what we could get from the
5276 case CF_READ_ABORTED:
5277 /* The user bailed out of re-reading the capture file; the
5278 capture file has been closed - just free the capture file name
5279 string and return (without changing the last containing
5285 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
5286 Instead, the file was left open, so we should restore "cf->is_tempfile"
5289 XXX - change the menu? Presumably "cf_open()" will do that;
5290 make sure it does! */
5291 cf->is_tempfile = is_tempfile;
5293 /* "cf_open()" made a copy of the file name we handed it, so
5294 we should free up our copy. */
5304 * indent-tabs-mode: nil
5307 * ex: set shiftwidth=2 tabstop=8 expandtab:
5308 * :indentSize=2:tabSize=8:noTabs=true: