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>
46 #include <wiretap/merge.h>
48 #include <epan/exceptions.h>
49 #include <epan/epan-int.h>
50 #include <epan/epan.h>
51 #include <epan/column.h>
52 #include <epan/packet.h>
53 #include <epan/column-utils.h>
54 #include <epan/expert.h>
55 #include <epan/prefs.h>
56 #include <epan/dfilter/dfilter.h>
57 #include <epan/epan_dissect.h>
59 #include <epan/dissectors/packet-data.h>
60 #include <epan/dissectors/packet-ber.h>
61 #include <epan/timestamp.h>
62 #include <epan/dfilter/dfilter-macro.h>
63 #include <epan/strutil.h>
64 #include <epan/addr_resolv.h>
67 #include "color_filters.h"
71 #include "frame_tvbuff.h"
73 #include "ui/alert_box.h"
74 #include "ui/simple_dialog.h"
75 #include "ui/main_statusbar.h"
76 #include "ui/progress_dlg.h"
77 #include "ui/ui_util.h"
79 #include "version_info.h"
81 /* Needed for addrinfo */
82 #ifdef HAVE_SYS_TYPES_H
83 # include <sys/types.h>
86 #ifdef HAVE_SYS_SOCKET_H
87 #include <sys/socket.h>
90 #ifdef HAVE_NETINET_IN_H
91 # include <netinet/in.h>
98 #ifdef HAVE_WINSOCK2_H
99 # include <winsock2.h>
102 #if defined(_WIN32) && defined(INET6)
103 # include <ws2tcpip.h>
107 gboolean auto_scroll_live;
110 static void cf_reset_state(capture_file *cf);
112 static int read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
113 column_info *cinfo, gint64 offset);
115 static void rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect);
122 static match_result match_protocol_tree(capture_file *cf, frame_data *fdata,
124 static void match_subtree_text(proto_node *node, gpointer data);
125 static match_result match_summary_line(capture_file *cf, frame_data *fdata,
127 static match_result match_narrow_and_wide(capture_file *cf, frame_data *fdata,
129 static match_result match_narrow(capture_file *cf, frame_data *fdata,
131 static match_result match_wide(capture_file *cf, frame_data *fdata,
133 static match_result match_binary(capture_file *cf, frame_data *fdata,
135 static match_result match_dfilter(capture_file *cf, frame_data *fdata,
137 static match_result match_marked(capture_file *cf, frame_data *fdata,
139 static match_result match_time_reference(capture_file *cf, frame_data *fdata,
141 static gboolean find_packet(capture_file *cf,
142 match_result (*match_function)(capture_file *, frame_data *, void *),
143 void *criterion, search_direction dir);
145 static const char *cf_get_user_packet_comment(capture_file *cf, const frame_data *fd);
147 static void cf_open_failure_alert_box(const char *filename, int err,
148 gchar *err_info, gboolean for_writing,
150 static void cf_rename_failure_alert_box(const char *filename, int err);
151 static void cf_close_failure_alert_box(const char *filename, int err);
152 static void ref_time_packets(capture_file *cf);
153 /* Update the progress bar this many times when reading a file. */
154 #define N_PROGBAR_UPDATES 100
155 /* We read around 200k/100ms don't update the progress bar more often than that */
156 #define MIN_QUANTUM 200000
157 #define MIN_NUMBER_OF_PACKET 1500
160 * We could probably use g_signal_...() instead of the callbacks below but that
161 * would require linking our CLI programs to libgobject and creating an object
162 * instance for the signals.
165 cf_callback_t cb_fct;
167 } cf_callback_data_t;
169 static GList *cf_callbacks = NULL;
172 cf_callback_invoke(int event, gpointer data)
174 cf_callback_data_t *cb;
175 GList *cb_item = cf_callbacks;
177 /* there should be at least one interested */
178 g_assert(cb_item != NULL);
180 while (cb_item != NULL) {
181 cb = (cf_callback_data_t *)cb_item->data;
182 cb->cb_fct(event, data, cb->user_data);
183 cb_item = g_list_next(cb_item);
189 cf_callback_add(cf_callback_t func, gpointer user_data)
191 cf_callback_data_t *cb;
193 cb = g_new(cf_callback_data_t,1);
195 cb->user_data = user_data;
197 cf_callbacks = g_list_prepend(cf_callbacks, cb);
201 cf_callback_remove(cf_callback_t func)
203 cf_callback_data_t *cb;
204 GList *cb_item = cf_callbacks;
206 while (cb_item != NULL) {
207 cb = (cf_callback_data_t *)cb_item->data;
208 if (cb->cb_fct == func) {
209 cf_callbacks = g_list_remove(cf_callbacks, cb);
213 cb_item = g_list_next(cb_item);
216 g_assert_not_reached();
220 cf_timestamp_auto_precision(capture_file *cf)
223 int prec = timestamp_get_precision();
226 /* don't try to get the file's precision if none is opened */
227 if (cf->state == FILE_CLOSED) {
231 /* if we are in auto mode, set precision of current file */
232 if (prec == TS_PREC_AUTO ||
233 prec == TS_PREC_AUTO_SEC ||
234 prec == TS_PREC_AUTO_DSEC ||
235 prec == TS_PREC_AUTO_CSEC ||
236 prec == TS_PREC_AUTO_MSEC ||
237 prec == TS_PREC_AUTO_USEC ||
238 prec == TS_PREC_AUTO_NSEC)
240 switch(wtap_file_tsprecision(cf->wth)) {
241 case(WTAP_FILE_TSPREC_SEC):
242 timestamp_set_precision(TS_PREC_AUTO_SEC);
244 case(WTAP_FILE_TSPREC_DSEC):
245 timestamp_set_precision(TS_PREC_AUTO_DSEC);
247 case(WTAP_FILE_TSPREC_CSEC):
248 timestamp_set_precision(TS_PREC_AUTO_CSEC);
250 case(WTAP_FILE_TSPREC_MSEC):
251 timestamp_set_precision(TS_PREC_AUTO_MSEC);
253 case(WTAP_FILE_TSPREC_USEC):
254 timestamp_set_precision(TS_PREC_AUTO_USEC);
256 case(WTAP_FILE_TSPREC_NSEC):
257 timestamp_set_precision(TS_PREC_AUTO_NSEC);
260 g_assert_not_reached();
263 /* Set the column widths of those columns that show the time in
264 "command-line-specified" format. */
265 for (i = 0; i < cf->cinfo.num_cols; i++) {
266 if (col_has_time_fmt(&cf->cinfo, i)) {
267 packet_list_resize_column(i);
273 cf_get_computed_elapsed(capture_file *cf)
275 return cf->computed_elapsed;
279 * GLIB_CHECK_VERSION(2,28,0) adds g_get_real_time which could minimize or
282 static void compute_elapsed(capture_file *cf, GTimeVal *start_time)
287 g_get_current_time(&time_now);
289 delta_time = (time_now.tv_sec - start_time->tv_sec) * 1e6 +
290 time_now.tv_usec - start_time->tv_usec;
292 cf->computed_elapsed = (gulong) (delta_time / 1000); /* ms */
295 static const nstime_t *
296 ws_get_frame_ts(void *data, guint32 frame_num)
298 capture_file *cf = (capture_file *) data;
300 if (cf->prev_dis && cf->prev_dis->num == frame_num)
301 return &cf->prev_dis->abs_ts;
303 if (cf->prev_cap && cf->prev_cap->num == frame_num)
304 return &cf->prev_cap->abs_ts;
307 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
309 return (fd) ? &fd->abs_ts : NULL;
316 ws_get_user_comment(void *data, const frame_data *fd)
318 capture_file *cf = (capture_file *) data;
320 return cf_get_user_packet_comment(cf, fd);
324 ws_epan_new(capture_file *cf)
326 epan_t *epan = epan_new();
329 epan->get_frame_ts = ws_get_frame_ts;
330 epan->get_interface_name = cap_file_get_interface_name;
331 epan->get_user_comment = ws_get_user_comment;
332 epan->get_interface_option = cap_file_get_interface_option;
338 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
343 wth = wtap_open_offline(fname, type, err, &err_info, TRUE);
347 /* The open succeeded. Close whatever capture file we had open,
348 and fill in the information for this file. */
351 /* XXX - we really want to initialize this after we've read all
352 the packets, so we know how much we'll ultimately need. */
353 buffer_init(&cf->buf, 1500);
355 /* Create new epan session for dissection.
356 * (The old one was freed in cf_close().)
358 cf->epan = ws_epan_new(cf);
360 /* We're about to start reading the file. */
361 cf->state = FILE_READ_IN_PROGRESS;
366 /* Set the file name because we need it to set the follow stream filter.
367 XXX - is that still true? We need it for other reasons, though,
369 cf->filename = g_strdup(fname);
371 /* Indicate whether it's a permanent or temporary file. */
372 cf->is_tempfile = is_tempfile;
374 /* No user changes yet. */
375 cf->unsaved_changes = FALSE;
377 cf->computed_elapsed = 0;
379 cf->cd_t = wtap_file_type_subtype(cf->wth);
380 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
382 cf->packet_comment_count = 0;
383 cf->displayed_count = 0;
384 cf->marked_count = 0;
385 cf->ignored_count = 0;
386 cf->ref_time_count = 0;
387 cf->drops_known = FALSE;
389 cf->snap = wtap_snapshot_length(cf->wth);
391 /* Snapshot length not known. */
392 cf->has_snap = FALSE;
393 cf->snap = WTAP_MAX_PACKET_SIZE;
397 /* Allocate a frame_data_sequence for the frames in this file */
398 cf->frames = new_frame_data_sequence();
400 nstime_set_zero(&cf->elapsed_time);
406 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
407 cf_timestamp_auto_precision(cf);
409 packet_list_queue_draw();
410 cf_callback_invoke(cf_cb_file_opened, cf);
412 if (cf->cd_t == WTAP_FILE_TYPE_SUBTYPE_BER) {
413 /* tell the BER dissector the file name */
414 ber_set_filename(cf->filename);
417 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
418 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
423 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
428 * Add an encapsulation type to cf->linktypes.
431 cf_add_encapsulation_type(capture_file *cf, int encap)
435 for (i = 0; i < cf->linktypes->len; i++) {
436 if (g_array_index(cf->linktypes, gint, i) == encap)
437 return; /* it's already there */
439 /* It's not already there - add it. */
440 g_array_append_val(cf->linktypes, encap);
444 * Reset the state for the currently closed file, but don't do the
445 * UI callbacks; this is for use in "cf_open()", where we don't
446 * want the UI to go from "file open" to "file closed" back to
447 * "file open", we want it to go from "old file open" to "new file
448 * open and being read".
450 * XXX - currently, cf_open() calls cf_close(), rather than
454 cf_reset_state(capture_file *cf)
456 /* Die if we're in the middle of reading a file. */
457 g_assert(cf->state != FILE_READ_IN_PROGRESS);
463 /* We have no file open... */
464 if (cf->filename != NULL) {
465 /* If it's a temporary file, remove it. */
467 ws_unlink(cf->filename);
468 g_free(cf->filename);
471 /* ...which means we have no changes to that file to save. */
472 cf->unsaved_changes = FALSE;
474 /* Free up the packet buffer. */
475 buffer_free(&cf->buf);
477 dfilter_free(cf->rfcode);
479 if (cf->frames != NULL) {
480 free_frame_data_sequence(cf->frames);
483 #ifdef WANT_PACKET_EDITOR
484 if (cf->edited_frames) {
485 g_tree_destroy(cf->edited_frames);
486 cf->edited_frames = NULL;
489 if (cf->frames_user_comments) {
490 g_tree_destroy(cf->frames_user_comments);
491 cf->frames_user_comments = NULL;
493 cf_unselect_packet(cf); /* nothing to select */
494 cf->first_displayed = 0;
495 cf->last_displayed = 0;
497 /* No frames, no frame selected, no field in that frame selected. */
499 cf->current_frame = 0;
501 cf->finfo_selected = NULL;
503 /* No frame link-layer types, either. */
504 g_array_free(cf->linktypes, TRUE);
505 cf->linktypes = NULL;
507 /* Clear the packet list. */
508 packet_list_freeze();
513 nstime_set_zero(&cf->elapsed_time);
515 reset_tap_listeners();
517 /* We have no file open. */
518 cf->state = FILE_CLOSED;
521 /* Reset everything to a pristine state */
523 cf_close(capture_file *cf)
525 if (cf->state != FILE_CLOSED) {
526 cf_callback_invoke(cf_cb_file_closing, cf);
528 /* close things, if not already closed before */
529 color_filters_cleanup();
534 cf_callback_invoke(cf_cb_file_closed, cf);
539 calc_progbar_val(capture_file *cf, gint64 size, gint64 file_pos, gchar *status_str, gulong status_size)
543 progbar_val = (gfloat) file_pos / (gfloat) size;
544 if (progbar_val > 1.0) {
546 /* The file probably grew while we were reading it.
547 * Update file size, and try again.
549 size = wtap_file_size(cf->wth, NULL);
552 progbar_val = (gfloat) file_pos / (gfloat) size;
554 /* If it's still > 1, either "wtap_file_size()" failed (in which
555 * case there's not much we can do about it), or the file
556 * *shrank* (in which case there's not much we can do about
557 * it); just clip the progress value at 1.0.
559 if (progbar_val > 1.0f)
563 g_snprintf(status_str, status_size,
564 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
565 file_pos / 1024, size / 1024);
571 cf_read(capture_file *cf, gboolean reloading)
576 progdlg_t *progbar = NULL;
581 volatile gboolean create_proto_tree;
585 /* Compile the current display filter.
586 * We assume this will not fail since cf->dfilter is only set in
587 * cf_filter IFF the filter was valid.
589 compiled = dfilter_compile(cf->dfilter, &dfcode);
590 g_assert(!cf->dfilter || (compiled && dfcode));
592 /* Get the union of the flags for all tap listeners. */
593 tap_flags = union_of_tap_listener_flags();
595 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
597 reset_tap_listeners();
599 name_ptr = g_filename_display_basename(cf->filename);
602 cf_callback_invoke(cf_cb_file_reload_started, cf);
604 cf_callback_invoke(cf_cb_file_read_started, cf);
606 /* Record whether the file is compressed.
607 XXX - do we know this at open time? */
608 cf->iscompressed = wtap_iscompressed(cf->wth);
610 /* The packet list window will be empty until the file is completly loaded */
611 packet_list_freeze();
614 g_get_current_time(&start_time);
616 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
620 int displayed_once = 0;
628 gint64 progbar_quantum;
629 gint64 progbar_nextstep;
631 gchar status_str[100];
635 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
637 /* Find the size of the file. */
638 size = wtap_file_size(cf->wth, NULL);
640 /* Update the progress bar when it gets to this value. */
641 progbar_nextstep = 0;
642 /* When we reach the value that triggers a progress bar update,
643 bump that value by this amount. */
645 progbar_quantum = size/N_PROGBAR_UPDATES;
646 if (progbar_quantum < MIN_QUANTUM)
647 progbar_quantum = MIN_QUANTUM;
651 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
654 file_pos = wtap_read_so_far(cf->wth);
656 /* Create the progress bar if necessary.
657 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
659 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
660 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
662 progbar = delayed_create_progress_dlg(cf->window, "Reloading", name_ptr,
663 TRUE, &stop_flag, &start_time, progbar_val);
665 progbar = delayed_create_progress_dlg(cf->window, "Loading", name_ptr,
666 TRUE, &stop_flag, &start_time, progbar_val);
669 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
670 when we update it, we have to run the GTK+ main loop to get it
671 to repaint what's pending, and doing so may involve an "ioctl()"
672 to see if there's any pending input from an X server, and doing
673 that for every packet can be costly, especially on a big file. */
674 if (file_pos >= progbar_nextstep) {
675 if (progbar != NULL) {
676 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
677 /* update the packet bar content on the first run or frequently on very large files */
679 if (progbar_quantum > 500000 || displayed_once == 0) {
680 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
682 packets_bar_update();
685 #endif /* HAVE_LIBPCAP */
686 update_progress_dlg(progbar, progbar_val, status_str);
688 progbar_nextstep += progbar_quantum;
693 /* Well, the user decided to abort the read. He/She will be warned and
694 it might be enough for him/her to work with the already loaded
696 This is especially true for very large capture files, where you don't
697 want to wait loading the whole file (which may last minutes or even
698 hours even on fast machines) just to see that it was the wrong file. */
701 read_packet(cf, dfcode, &edt, cinfo, data_offset);
704 CATCH(OutOfMemoryError) {
705 simple_message_box(ESD_TYPE_ERROR, NULL,
706 "Some infos / workarounds can be found at:\n"
707 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
708 "Sorry, but Wireshark has run out of memory and has to terminate now!");
710 /* Could we close the current capture and free up memory from that? */
712 /* we have to terminate, as we cannot recover from the memory error */
718 /* Free the display name */
721 /* Cleanup and release all dfilter resources */
722 if (dfcode != NULL) {
723 dfilter_free(dfcode);
726 epan_dissect_cleanup(&edt);
728 /* We're done reading the file; destroy the progress bar if it was created. */
730 destroy_progress_dlg(progbar);
732 /* We're done reading sequentially through the file. */
733 cf->state = FILE_READ_DONE;
735 /* Close the sequential I/O side, to free up memory it requires. */
736 wtap_sequential_close(cf->wth);
738 /* Allow the protocol dissectors to free up memory that they
739 * don't need after the sequential run-through of the packets. */
740 postseq_cleanup_all_protocols();
742 /* compute the time it took to load the file */
743 compute_elapsed(cf, &start_time);
745 /* Set the file encapsulation type now; we don't know what it is until
746 we've looked at all the packets, as we don't know until then whether
747 there's more than one type (and thus whether it's
748 WTAP_ENCAP_PER_PACKET). */
749 cf->lnk_t = wtap_file_encap(cf->wth);
751 cf->current_frame = frame_data_sequence_find(cf->frames, cf->first_displayed);
756 cf_callback_invoke(cf_cb_file_reload_finished, cf);
758 cf_callback_invoke(cf_cb_file_read_finished, cf);
760 /* If we have any displayed packets to select, select the first of those
761 packets by making the first row the selected row. */
762 if (cf->first_displayed != 0) {
763 packet_list_select_first_row();
767 simple_message_box(ESD_TYPE_WARN, NULL,
768 "The remaining packets in the file were discarded.\n"
770 "As a lot of packets from the original file will be missing,\n"
771 "remember to be careful when saving the current content to a file.\n",
772 "File loading was cancelled!");
773 return CF_READ_ERROR;
777 /* Put up a message box noting that the read failed somewhere along
778 the line. Don't throw out the stuff we managed to read, though,
782 case WTAP_ERR_UNSUPPORTED:
783 simple_error_message_box(
784 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
789 case WTAP_ERR_UNSUPPORTED_ENCAP:
790 simple_error_message_box(
791 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
796 case WTAP_ERR_CANT_READ:
797 simple_error_message_box(
798 "An attempt to read from the capture file failed for"
799 " some unknown reason.");
802 case WTAP_ERR_SHORT_READ:
803 simple_error_message_box(
804 "The capture file appears to have been cut short"
805 " in the middle of a packet.");
808 case WTAP_ERR_BAD_FILE:
809 simple_error_message_box(
810 "The capture file appears to be damaged or corrupt.\n(%s)",
815 case WTAP_ERR_DECOMPRESS:
816 simple_error_message_box(
817 "The compressed capture file appears to be damaged or corrupt.\n"
823 simple_error_message_box(
824 "An error occurred while reading the"
825 " capture file: %s.", wtap_strerror(err));
828 return CF_READ_ERROR;
835 cf_continue_tail(capture_file *cf, volatile int to_read, int *err)
838 int newly_displayed_packets = 0;
841 gboolean create_proto_tree;
845 /* Compile the current display filter.
846 * We assume this will not fail since cf->dfilter is only set in
847 * cf_filter IFF the filter was valid.
849 compiled = dfilter_compile(cf->dfilter, &dfcode);
850 g_assert(!cf->dfilter || (compiled && dfcode));
852 /* Get the union of the flags for all tap listeners. */
853 tap_flags = union_of_tap_listener_flags();
855 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
859 packet_list_check_end();
860 /* Don't freeze/thaw the list when doing live capture */
861 /*packet_list_freeze();*/
863 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
865 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
868 gint64 data_offset = 0;
871 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
873 while (to_read != 0) {
874 wtap_cleareof(cf->wth);
875 if (!wtap_read(cf->wth, err, &err_info, &data_offset)) {
878 if (cf->state == FILE_READ_ABORTED) {
879 /* Well, the user decided to exit Wireshark. Break out of the
880 loop, and let the code below (which is called even if there
881 aren't any packets left to read) exit. */
884 if (read_packet(cf, dfcode, &edt, (column_info *) cinfo, data_offset) != -1) {
885 newly_displayed_packets++;
890 CATCH(OutOfMemoryError) {
891 simple_message_box(ESD_TYPE_ERROR, NULL,
892 "Some infos / workarounds can be found at:\n"
893 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
894 "Sorry, but Wireshark has run out of memory and has to terminate now!");
896 /* Could we close the current capture and free up memory from that? */
897 return CF_READ_ABORTED;
899 /* we have to terminate, as we cannot recover from the memory error */
905 /* Update the file encapsulation; it might have changed based on the
906 packets we've read. */
907 cf->lnk_t = wtap_file_encap(cf->wth);
909 /* Cleanup and release all dfilter resources */
910 if (dfcode != NULL) {
911 dfilter_free(dfcode);
914 epan_dissect_cleanup(&edt);
916 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
917 cf->count, cf->state, *err);*/
919 /* Don't freeze/thaw the list when doing live capture */
920 /*packet_list_thaw();*/
921 /* With the new packet list the first packet
922 * isn't automatically selected.
924 if (!cf->current_frame)
925 packet_list_select_first_row();
927 /* moving to the end of the packet list - if the user requested so and
928 we have some new packets. */
929 if (newly_displayed_packets && auto_scroll_live && cf->count != 0)
930 packet_list_moveto_end();
932 if (cf->state == FILE_READ_ABORTED) {
933 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
934 so that our caller can kill off the capture child process;
935 this will cause an EOF on the pipe from the child, so
936 "cf_finish_tail()" will be called, and it will clean up
938 return CF_READ_ABORTED;
939 } else if (*err != 0) {
940 /* We got an error reading the capture file.
941 XXX - pop up a dialog box instead? */
942 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
943 wtap_strerror(*err), err_info, cf->filename);
946 return CF_READ_ERROR;
952 cf_fake_continue_tail(capture_file *cf) {
953 cf->state = FILE_READ_DONE;
957 cf_finish_tail(capture_file *cf, int *err)
964 gboolean create_proto_tree;
968 /* Compile the current display filter.
969 * We assume this will not fail since cf->dfilter is only set in
970 * cf_filter IFF the filter was valid.
972 compiled = dfilter_compile(cf->dfilter, &dfcode);
973 g_assert(!cf->dfilter || (compiled && dfcode));
975 /* Get the union of the flags for all tap listeners. */
976 tap_flags = union_of_tap_listener_flags();
977 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
979 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
981 if (cf->wth == NULL) {
983 return CF_READ_ERROR;
986 packet_list_check_end();
987 /* Don't freeze/thaw the list when doing live capture */
988 /*packet_list_freeze();*/
990 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
992 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
993 if (cf->state == FILE_READ_ABORTED) {
994 /* Well, the user decided to abort the read. Break out of the
995 loop, and let the code below (which is called even if there
996 aren't any packets left to read) exit. */
999 read_packet(cf, dfcode, &edt, cinfo, data_offset);
1002 /* Cleanup and release all dfilter resources */
1003 if (dfcode != NULL) {
1004 dfilter_free(dfcode);
1007 epan_dissect_cleanup(&edt);
1009 /* Don't freeze/thaw the list when doing live capture */
1010 /*packet_list_thaw();*/
1012 if (cf->state == FILE_READ_ABORTED) {
1013 /* Well, the user decided to abort the read. We're only called
1014 when the child capture process closes the pipe to us (meaning
1015 it's probably exited), so we can just close the capture
1016 file; we return CF_READ_ABORTED so our caller can do whatever
1017 is appropriate when that happens. */
1019 return CF_READ_ABORTED;
1022 if (auto_scroll_live && cf->count != 0)
1023 packet_list_moveto_end();
1025 /* We're done reading sequentially through the file. */
1026 cf->state = FILE_READ_DONE;
1028 /* We're done reading sequentially through the file; close the
1029 sequential I/O side, to free up memory it requires. */
1030 wtap_sequential_close(cf->wth);
1032 /* Allow the protocol dissectors to free up memory that they
1033 * don't need after the sequential run-through of the packets. */
1034 postseq_cleanup_all_protocols();
1036 /* Update the file encapsulation; it might have changed based on the
1037 packets we've read. */
1038 cf->lnk_t = wtap_file_encap(cf->wth);
1040 /* Update the details in the file-set dialog, as the capture file
1041 * has likely grown since we first stat-ed it */
1042 fileset_update_file(cf->filename);
1045 /* We got an error reading the capture file.
1046 XXX - pop up a dialog box? */
1048 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
1049 wtap_strerror(*err), err_info, cf->filename);
1051 return CF_READ_ERROR;
1056 #endif /* HAVE_LIBPCAP */
1059 cf_get_display_name(capture_file *cf)
1063 /* Return a name to use in displays */
1064 if (!cf->is_tempfile) {
1065 /* Get the last component of the file name, and use that. */
1067 displayname = g_filename_display_basename(cf->filename);
1069 displayname=g_strdup("(No file)");
1072 /* The file we read is a temporary file from a live capture or
1073 a merge operation; we don't mention its name, but, if it's
1074 from a capture, give the source of the capture. */
1076 displayname = g_strdup(cf->source);
1078 displayname = g_strdup("(Untitled)");
1084 void cf_set_tempfile_source(capture_file *cf, gchar *source) {
1090 cf->source = g_strdup(source);
1092 cf->source = g_strdup("");
1096 const gchar *cf_get_tempfile_source(capture_file *cf) {
1104 /* XXX - use a macro instead? */
1106 cf_get_packet_count(capture_file *cf)
1111 /* XXX - use a macro instead? */
1113 cf_set_packet_count(capture_file *cf, int packet_count)
1115 cf->count = packet_count;
1118 /* XXX - use a macro instead? */
1120 cf_is_tempfile(capture_file *cf)
1122 return cf->is_tempfile;
1125 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
1127 cf->is_tempfile = is_tempfile;
1131 /* XXX - use a macro instead? */
1132 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
1134 cf->drops_known = drops_known;
1137 /* XXX - use a macro instead? */
1138 void cf_set_drops(capture_file *cf, guint32 drops)
1143 /* XXX - use a macro instead? */
1144 gboolean cf_get_drops_known(capture_file *cf)
1146 return cf->drops_known;
1149 /* XXX - use a macro instead? */
1150 guint32 cf_get_drops(capture_file *cf)
1155 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
1157 cf->rfcode = rfcode;
1161 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
1162 epan_dissect_t *edt, dfilter_t *dfcode, column_info *cinfo,
1163 struct wtap_pkthdr *phdr, const guint8 *buf, gboolean add_to_packet_list)
1167 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1168 &cf->ref, cf->prev_dis);
1169 cf->prev_cap = fdata;
1171 if (dfcode != NULL) {
1172 epan_dissect_prime_dfilter(edt, dfcode);
1175 /* Dissect the frame. */
1176 epan_dissect_run_with_taps(edt, phdr, frame_tvbuff_new(fdata, buf), fdata, cinfo);
1178 /* If we don't have a display filter, set "passed_dfilter" to 1. */
1179 if (dfcode != NULL) {
1180 fdata->flags.passed_dfilter = dfilter_apply_edt(dfcode, edt) ? 1 : 0;
1182 if (fdata->flags.passed_dfilter) {
1183 /* This frame passed the display filter but it may depend on other
1184 * (potentially not displayed) frames. Find those frames and mark them
1187 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1190 fdata->flags.passed_dfilter = 1;
1192 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1193 cf->displayed_count++;
1195 if (add_to_packet_list) {
1196 /* We fill the needed columns from new_packet_list */
1197 row = packet_list_append(cinfo, fdata);
1200 if (fdata->flags.passed_dfilter || fdata->flags.ref_time)
1202 frame_data_set_after_dissect(fdata, &cf->cum_bytes);
1203 cf->prev_dis = fdata;
1205 /* If we haven't yet seen the first frame, this is it.
1207 XXX - we must do this before we add the row to the display,
1208 as, if the display's GtkCList's selection mode is
1209 GTK_SELECTION_BROWSE, when the first entry is added to it,
1210 "cf_select_packet()" will be called, and it will fetch the row
1211 data for the 0th row, and will get a null pointer rather than
1212 "fdata", as "gtk_clist_append()" won't yet have returned and
1213 thus "gtk_clist_set_row_data()" won't yet have been called.
1215 We thus need to leave behind bread crumbs so that
1216 "cf_select_packet()" can find this frame. See the comment
1217 in "cf_select_packet()". */
1218 if (cf->first_displayed == 0)
1219 cf->first_displayed = fdata->num;
1221 /* This is the last frame we've seen so far. */
1222 cf->last_displayed = fdata->num;
1225 epan_dissect_reset(edt);
1229 /* read in a new packet */
1230 /* returns the row of the new packet in the packet list or -1 if not displayed */
1232 read_packet(capture_file *cf, dfilter_t *dfcode, epan_dissect_t *edt,
1233 column_info *cinfo, gint64 offset)
1235 struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
1236 const guint8 *buf = wtap_buf_ptr(cf->wth);
1243 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
1244 it's not already there.
1245 XXX - yes, this is O(N), so if every packet had a different
1246 link-layer encapsulation type, it'd be O(N^2) to read the file, but
1247 there are probably going to be a small number of encapsulation types
1249 cf_add_encapsulation_type(cf, phdr->pkt_encap);
1251 /* The frame number of this packet is one more than the count of
1252 frames in the file so far. */
1253 framenum = cf->count + 1;
1255 frame_data_init(&fdlocal, framenum, phdr, offset, cf->cum_bytes);
1259 epan_dissect_t rf_edt;
1261 epan_dissect_init(&rf_edt, cf->epan, TRUE, FALSE);
1262 epan_dissect_prime_dfilter(&rf_edt, cf->rfcode);
1263 epan_dissect_run(&rf_edt, phdr, frame_tvbuff_new(&fdlocal, buf), &fdlocal, NULL);
1264 passed = dfilter_apply_edt(cf->rfcode, &rf_edt);
1265 epan_dissect_cleanup(&rf_edt);
1269 /* This does a shallow copy of fdlocal, which is good enough. */
1270 fdata = frame_data_sequence_add(cf->frames, &fdlocal);
1273 if (phdr->opt_comment != NULL)
1274 cf->packet_comment_count++;
1275 cf->f_datalen = offset + fdlocal.cap_len;
1277 if (!cf->redissecting) {
1278 row = add_packet_to_packet_list(fdata, cf, edt, dfcode,
1279 cinfo, phdr, buf, TRUE);
1287 cf_merge_files(char **out_filenamep, int in_file_count,
1288 char *const *in_filenames, int file_type, gboolean do_append)
1290 merge_in_file_t *in_files, *in_file;
1295 int open_err, read_err, write_err, close_err;
1299 gboolean got_read_error = FALSE, got_write_error = FALSE;
1301 progdlg_t *progbar = NULL;
1303 gint64 f_len, file_pos;
1305 GTimeVal start_time;
1306 gchar status_str[100];
1307 gint64 progbar_nextstep;
1308 gint64 progbar_quantum;
1309 gchar *display_basename;
1310 int selected_frame_type;
1311 gboolean fake_interface_ids = FALSE;
1313 /* open the input files */
1314 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
1315 &open_err, &err_info, &err_fileno)) {
1317 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
1322 if (*out_filenamep != NULL) {
1323 out_filename = *out_filenamep;
1324 out_fd = ws_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
1328 out_fd = create_tempfile(&tmpname, "wireshark");
1331 out_filename = g_strdup(tmpname);
1332 *out_filenamep = out_filename;
1336 merge_close_in_files(in_file_count, in_files);
1338 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1342 selected_frame_type = merge_select_frame_type(in_file_count, in_files);
1344 /* If we are trying to merge a number of libpcap files with different encapsulation types
1345 * change the output file type to pcapng and create SHB and IDB:s for the new file use the
1346 * interface index stored in in_files per file to change the phdr before writing the datablock.
1347 * XXX should it be an option to convert to pcapng?
1349 * We need something similar when merging pcapng files possibly with an option to say
1350 * the same interface(s) used in all in files. SHBs comments should be merged together.
1352 if ((selected_frame_type == WTAP_ENCAP_PER_PACKET)&&(file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP)) {
1353 /* Write output in pcapng format */
1354 wtapng_section_t *shb_hdr;
1355 wtapng_iface_descriptions_t *idb_inf, *idb_inf_merge_file;
1356 wtapng_if_descr_t int_data, *file_int_data;
1357 GString *comment_gstr;
1359 fake_interface_ids = TRUE;
1360 /* Create SHB info */
1361 shb_hdr = wtap_file_get_shb_info(in_files[0].wth);
1362 comment_gstr = g_string_new("");
1363 g_string_append_printf(comment_gstr, "%s \n",shb_hdr->opt_comment);
1364 g_string_append_printf(comment_gstr, "File created by merging: \n");
1365 file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
1367 for (i = 0; i < in_file_count; i++) {
1368 g_string_append_printf(comment_gstr, "File%d: %s \n",i+1,in_files[i].filename);
1370 shb_hdr->section_length = -1;
1372 shb_hdr->opt_comment = g_string_free(comment_gstr, FALSE); /* NULL if not available */
1373 shb_hdr->shb_hardware = NULL; /* NULL if not available, UTF-8 string containing the */
1374 /* description of the hardware used to create this section. */
1375 shb_hdr->shb_os = NULL; /* NULL if not available, UTF-8 string containing the name */
1376 /* of the operating system used to create this section. */
1377 shb_hdr->shb_user_appl = "Wireshark"; /* NULL if not available, UTF-8 string containing the name */
1378 /* of the application used to create this section. */
1380 /* create fake IDB info */
1381 idb_inf = g_new(wtapng_iface_descriptions_t,1);
1382 idb_inf->number_of_interfaces = in_file_count; /* TODO make this the number of DIFFERENT encapsulation types
1383 * check that snaplength is the same too?
1385 idb_inf->interface_data = g_array_new(FALSE, FALSE, sizeof(wtapng_if_descr_t));
1387 for (i = 0; i < in_file_count; i++) {
1388 idb_inf_merge_file = wtap_file_get_idb_info(in_files[i].wth);
1389 /* read the interface data from the in file to our combined interfca data */
1390 file_int_data = &g_array_index (idb_inf_merge_file->interface_data, wtapng_if_descr_t, 0);
1391 int_data.wtap_encap = file_int_data->wtap_encap;
1392 int_data.time_units_per_second = file_int_data->time_units_per_second;
1393 int_data.link_type = file_int_data->link_type;
1394 int_data.snap_len = file_int_data->snap_len;
1395 int_data.if_name = g_strdup(file_int_data->if_name);
1396 int_data.opt_comment = NULL;
1397 int_data.if_description = NULL;
1398 int_data.if_speed = 0;
1399 int_data.if_tsresol = 6;
1400 int_data.if_filter_str = NULL;
1401 int_data.bpf_filter_len = 0;
1402 int_data.if_filter_bpf_bytes = NULL;
1403 int_data.if_os = NULL;
1404 int_data.if_fcslen = -1;
1405 int_data.num_stat_entries = 0; /* Number of ISB:s */
1406 int_data.interface_statistics = NULL;
1408 g_array_append_val(idb_inf->interface_data, int_data);
1409 g_free(idb_inf_merge_file);
1411 /* Set fake interface Id in per file data */
1412 in_files[i].interface_id = i;
1415 pdh = wtap_dump_fdopen_ng(out_fd, file_type,
1416 selected_frame_type,
1417 merge_max_snapshot_length(in_file_count, in_files),
1418 FALSE /* compressed */, shb_hdr, idb_inf /* wtapng_iface_descriptions_t *idb_inf */, &open_err);
1422 merge_close_in_files(in_file_count, in_files);
1424 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1431 pdh = wtap_dump_fdopen(out_fd, file_type,
1432 selected_frame_type,
1433 merge_max_snapshot_length(in_file_count, in_files),
1434 FALSE /* compressed */, &open_err);
1437 merge_close_in_files(in_file_count, in_files);
1439 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1445 /* Get the sum of the sizes of all the files. */
1447 for (i = 0; i < in_file_count; i++)
1448 f_len += in_files[i].size;
1450 /* Update the progress bar when it gets to this value. */
1451 progbar_nextstep = 0;
1452 /* When we reach the value that triggers a progress bar update,
1453 bump that value by this amount. */
1454 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1455 /* Progress so far. */
1459 g_get_current_time(&start_time);
1461 /* do the merge (or append) */
1464 in_file = merge_append_read_packet(in_file_count, in_files, &read_err,
1467 in_file = merge_read_packet(in_file_count, in_files, &read_err,
1469 if (in_file == NULL) {
1474 if (read_err != 0) {
1475 /* I/O error reading from in_file */
1476 got_read_error = TRUE;
1480 /* Get the sum of the data offsets in all of the files. */
1482 for (i = 0; i < in_file_count; i++)
1483 data_offset += in_files[i].data_offset;
1485 /* Create the progress bar if necessary.
1486 We check on every iteration of the loop, so that it takes no
1487 longer than the standard time to create it (otherwise, for a
1488 large file, we might take considerably longer than that standard
1489 time in order to get to the next progress bar step). */
1490 if (progbar == NULL) {
1491 progbar = delayed_create_progress_dlg(NULL, "Merging", "files",
1492 FALSE, &stop_flag, &start_time, progbar_val);
1495 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1496 when we update it, we have to run the GTK+ main loop to get it
1497 to repaint what's pending, and doing so may involve an "ioctl()"
1498 to see if there's any pending input from an X server, and doing
1499 that for every packet can be costly, especially on a big file. */
1500 if (data_offset >= progbar_nextstep) {
1501 /* Get the sum of the seek positions in all of the files. */
1503 for (i = 0; i < in_file_count; i++)
1504 file_pos += wtap_read_so_far(in_files[i].wth);
1505 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1506 if (progbar_val > 1.0f) {
1507 /* Some file probably grew while we were reading it.
1508 That "shouldn't happen", so we'll just clip the progress
1512 if (progbar != NULL) {
1513 g_snprintf(status_str, sizeof(status_str),
1514 "%" G_GINT64_MODIFIER "dKB of %" G_GINT64_MODIFIER "dKB",
1515 file_pos / 1024, f_len / 1024);
1516 update_progress_dlg(progbar, progbar_val, status_str);
1518 progbar_nextstep += progbar_quantum;
1522 /* Well, the user decided to abort the merge. */
1526 /* If we have WTAP_ENCAP_PER_PACKET and the infiles are of type
1527 * WTAP_FILE_TYPE_SUBTYPE_PCAP, we need to set the interface id
1528 * in the paket header = the interface index we used in the IDBs
1529 * interface description for this file(encapsulation type).
1531 if (fake_interface_ids) {
1532 struct wtap_pkthdr *phdr;
1534 phdr = wtap_phdr(in_file->wth);
1535 phdr->interface_id = in_file->interface_id;
1536 phdr->presence_flags = phdr->presence_flags | WTAP_HAS_INTERFACE_ID;
1538 if (!wtap_dump(pdh, wtap_phdr(in_file->wth),
1539 wtap_buf_ptr(in_file->wth), &write_err)) {
1540 got_write_error = TRUE;
1545 /* We're done merging the files; destroy the progress bar if it was created. */
1546 if (progbar != NULL)
1547 destroy_progress_dlg(progbar);
1549 merge_close_in_files(in_file_count, in_files);
1550 if (!got_write_error) {
1551 if (!wtap_dump_close(pdh, &write_err))
1552 got_write_error = TRUE;
1555 * We already got a write error; no need to report another
1556 * write error on close.
1558 * Don't overwrite the earlier write error.
1560 (void)wtap_dump_close(pdh, &close_err);
1563 if (got_read_error) {
1565 * Find the file on which we got the error, and report the error.
1567 for (i = 0; i < in_file_count; i++) {
1568 if (in_files[i].state == GOT_ERROR) {
1569 /* Put up a message box noting that a read failed somewhere along
1571 display_basename = g_filename_display_basename(in_files[i].filename);
1574 case WTAP_ERR_UNSUPPORTED_ENCAP:
1575 simple_error_message_box(
1576 "The capture file %s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1577 display_basename, err_info);
1581 case WTAP_ERR_CANT_READ:
1582 simple_error_message_box(
1583 "An attempt to read from the capture file %s failed for"
1584 " some unknown reason.", display_basename);
1587 case WTAP_ERR_SHORT_READ:
1588 simple_error_message_box(
1589 "The capture file %s appears to have been cut short"
1590 " in the middle of a packet.", display_basename);
1593 case WTAP_ERR_BAD_FILE:
1594 simple_error_message_box(
1595 "The capture file %s appears to be damaged or corrupt.\n(%s)",
1596 display_basename, err_info);
1600 case WTAP_ERR_DECOMPRESS:
1601 simple_error_message_box(
1602 "The compressed capture file %s appears to be damaged or corrupt.\n"
1603 "(%s)", display_basename, err_info);
1608 simple_error_message_box(
1609 "An error occurred while reading the"
1610 " capture file %s: %s.",
1611 display_basename, wtap_strerror(read_err));
1614 g_free(display_basename);
1619 if (got_write_error) {
1620 /* Put up an alert box for the write error. */
1621 if (write_err < 0) {
1622 /* Wiretap error. */
1623 switch (write_err) {
1625 case WTAP_ERR_UNSUPPORTED_ENCAP:
1627 * This is a problem with the particular frame we're writing and
1628 * the file type and subtype we're writing; note that, and report
1629 * the frame number and file type/subtype.
1631 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1632 simple_error_message_box(
1633 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1634 in_file ? in_file->packet_num : 0, display_basename,
1635 wtap_file_type_subtype_string(file_type));
1636 g_free(display_basename);
1639 case WTAP_ERR_PACKET_TOO_LARGE:
1641 * This is a problem with the particular frame we're writing and
1642 * the file type and subtype we're writing; note that, and report
1643 * the frame number and file type/subtype.
1645 display_basename = g_filename_display_basename(in_file ? in_file->filename : "UNKNOWN");
1646 simple_error_message_box(
1647 "Frame %u of \"%s\" is too large for a \"%s\" file.",
1648 in_file ? in_file->packet_num : 0, display_basename,
1649 wtap_file_type_subtype_string(file_type));
1650 g_free(display_basename);
1654 display_basename = g_filename_display_basename(out_filename);
1655 simple_error_message_box(
1656 "An error occurred while writing to the file \"%s\": %s.",
1657 out_filename, wtap_strerror(write_err));
1658 g_free(display_basename);
1663 write_failure_alert_box(out_filename, write_err);
1667 if (got_read_error || got_write_error || stop_flag) {
1668 /* Callers aren't expected to treat an error or an explicit abort
1669 differently - we put up error dialogs ourselves, so they don't
1677 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1679 const char *filter_new = dftext ? dftext : "";
1680 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1682 GTimeVal start_time;
1684 /* if new filter equals old one, do nothing unless told to do so */
1685 if (!force && strcmp(filter_new, filter_old) == 0) {
1691 if (dftext == NULL) {
1692 /* The new filter is an empty filter (i.e., display all packets).
1693 * so leave dfcode==NULL
1697 * We have a filter; make a copy of it (as we'll be saving it),
1698 * and try to compile it.
1700 dftext = g_strdup(dftext);
1701 if (!dfilter_compile(dftext, &dfcode)) {
1702 /* The attempt failed; report an error. */
1703 simple_message_box(ESD_TYPE_ERROR, NULL,
1704 "See the help for a description of the display filter syntax.",
1705 "\"%s\" isn't a valid display filter: %s",
1706 dftext, dfilter_error_msg);
1712 if (dfcode == NULL) {
1713 /* Yes - free the filter text, and set it to null. */
1719 /* We have a valid filter. Replace the current filter. */
1720 g_free(cf->dfilter);
1721 cf->dfilter = dftext;
1722 g_get_current_time(&start_time);
1725 /* Now rescan the packet list, applying the new filter, but not
1726 throwing away information constructed on a previous pass. */
1727 if (dftext == NULL) {
1728 rescan_packets(cf, "Resetting", "Filter", FALSE);
1730 rescan_packets(cf, "Filtering", dftext, FALSE);
1733 /* Cleanup and release all dfilter resources */
1734 dfilter_free(dfcode);
1740 cf_reftime_packets(capture_file *cf)
1742 ref_time_packets(cf);
1746 cf_redissect_packets(capture_file *cf)
1748 if (cf->state != FILE_CLOSED) {
1749 rescan_packets(cf, "Reprocessing", "all packets", TRUE);
1754 cf_read_frame_r(capture_file *cf, const frame_data *fdata,
1755 struct wtap_pkthdr *phdr, Buffer *buf)
1759 gchar *display_basename;
1761 #ifdef WANT_PACKET_EDITOR
1762 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1763 if (G_UNLIKELY(fdata->file_off == -1)) {
1764 const modified_frame_data *frame = (const modified_frame_data *) g_tree_lookup(cf->edited_frames, GINT_TO_POINTER(fdata->num));
1767 simple_error_message_box("fdata->file_off == -1, but can't find modified frame!");
1771 *phdr = frame->phdr;
1772 buffer_assure_space(buf, frame->phdr.caplen);
1773 memcpy(buffer_start_ptr(buf), frame->pd, frame->phdr.caplen);
1778 if (!wtap_seek_read(cf->wth, fdata->file_off, phdr, buf, &err, &err_info)) {
1779 display_basename = g_filename_display_basename(cf->filename);
1782 case WTAP_ERR_UNSUPPORTED_ENCAP:
1783 simple_error_message_box("The file \"%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1784 display_basename, err_info);
1788 case WTAP_ERR_BAD_FILE:
1789 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1790 display_basename, wtap_strerror(err), err_info);
1795 simple_error_message_box(
1796 "An error occurred while reading from the file \"%s\": %s.",
1797 display_basename, wtap_strerror(err));
1800 g_free(display_basename);
1807 cf_read_frame(capture_file *cf, frame_data *fdata)
1809 return cf_read_frame_r(cf, fdata, &cf->phdr, &cf->buf);
1812 /* Rescan the list of packets, reconstructing the CList.
1814 "action" describes why we're doing this; it's used in the progress
1817 "action_item" describes what we're doing; it's used in the progress
1820 "redissect" is TRUE if we need to make the dissectors reconstruct
1821 any state information they have (because a preference that affects
1822 some dissector has changed, meaning some dissector might construct
1823 its state differently from the way it was constructed the last time). */
1825 rescan_packets(capture_file *cf, const char *action, const char *action_item, gboolean redissect)
1827 /* Rescan packets new packet list */
1830 progdlg_t *progbar = NULL;
1833 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1834 int selected_frame_num, preceding_frame_num, following_frame_num, prev_frame_num;
1835 gboolean selected_frame_seen;
1837 GTimeVal start_time;
1838 gchar status_str[100];
1839 int progbar_nextstep;
1840 int progbar_quantum;
1844 gboolean create_proto_tree;
1846 gboolean add_to_packet_list = FALSE;
1848 guint32 frames_count;
1850 /* Compile the current display filter.
1851 * We assume this will not fail since cf->dfilter is only set in
1852 * cf_filter IFF the filter was valid.
1854 compiled = dfilter_compile(cf->dfilter, &dfcode);
1855 g_assert(!cf->dfilter || (compiled && dfcode));
1857 /* Get the union of the flags for all tap listeners. */
1858 tap_flags = union_of_tap_listener_flags();
1859 cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
1861 (dfcode != NULL || have_filtering_tap_listeners() || (tap_flags & TL_REQUIRES_PROTO_TREE));
1863 reset_tap_listeners();
1864 /* Which frame, if any, is the currently selected frame?
1865 XXX - should the selected frame or the focus frame be the "current"
1866 frame, that frame being the one from which "Find Frame" searches
1868 selected_frame = cf->current_frame;
1870 /* Mark frame num as not found */
1871 selected_frame_num = -1;
1873 /* Freeze the packet list while we redo it, so we don't get any
1874 screen updates while it happens. */
1875 packet_list_freeze();
1878 /* We need to re-initialize all the state information that protocols
1879 keep, because some preference that controls a dissector has changed,
1880 which might cause the state information to be constructed differently
1881 by that dissector. */
1883 /* We might receive new packets while redissecting, and we don't
1884 want to dissect those before their time. */
1885 cf->redissecting = TRUE;
1887 /* 'reset' dissection session */
1888 epan_free(cf->epan);
1889 cf->epan = ws_epan_new(cf);
1891 /* We need to redissect the packets so we have to discard our old
1892 * packet list store. */
1893 packet_list_clear();
1894 add_to_packet_list = TRUE;
1897 /* We don't yet know which will be the first and last frames displayed. */
1898 cf->first_displayed = 0;
1899 cf->last_displayed = 0;
1901 /* We currently don't display any packets */
1902 cf->displayed_count = 0;
1904 /* Iterate through the list of frames. Call a routine for each frame
1905 to check whether it should be displayed and, if so, add it to
1906 the display list. */
1908 cf->prev_dis = NULL;
1909 cf->prev_cap = NULL;
1912 /* Update the progress bar when it gets to this value. */
1913 progbar_nextstep = 0;
1914 /* When we reach the value that triggers a progress bar update,
1915 bump that value by this amount. */
1916 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1917 /* Count of packets at which we've looked. */
1919 /* Progress so far. */
1923 g_get_current_time(&start_time);
1925 /* no previous row yet */
1926 prev_frame_num = -1;
1929 preceding_frame_num = -1;
1930 preceding_frame = NULL;
1931 following_frame_num = -1;
1932 following_frame = NULL;
1934 selected_frame_seen = FALSE;
1936 frames_count = cf->count;
1938 epan_dissect_init(&edt, cf->epan, create_proto_tree, FALSE);
1940 for (framenum = 1; framenum <= frames_count; framenum++) {
1941 fdata = frame_data_sequence_find(cf->frames, framenum);
1943 /* Create the progress bar if necessary.
1944 We check on every iteration of the loop, so that it takes no
1945 longer than the standard time to create it (otherwise, for a
1946 large file, we might take considerably longer than that standard
1947 time in order to get to the next progress bar step). */
1948 if (progbar == NULL)
1949 progbar = delayed_create_progress_dlg(cf->window, action, action_item, TRUE,
1950 &stop_flag, &start_time,
1953 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1954 when we update it, we have to run the GTK+ main loop to get it
1955 to repaint what's pending, and doing so may involve an "ioctl()"
1956 to see if there's any pending input from an X server, and doing
1957 that for every packet can be costly, especially on a big file. */
1958 if (count >= progbar_nextstep) {
1959 /* let's not divide by zero. I should never be started
1960 * with count == 0, so let's assert that
1962 g_assert(cf->count > 0);
1963 progbar_val = (gfloat) count / frames_count;
1965 if (progbar != NULL) {
1966 g_snprintf(status_str, sizeof(status_str),
1967 "%4u of %u frames", count, frames_count);
1968 update_progress_dlg(progbar, progbar_val, status_str);
1971 progbar_nextstep += progbar_quantum;
1975 /* Well, the user decided to abort the filtering. Just stop.
1977 XXX - go back to the previous filter? Users probably just
1978 want not to wait for a filtering operation to finish;
1979 unless we cancel by having no filter, reverting to the
1980 previous filter will probably be even more expensive than
1981 continuing the filtering, as it involves going back to the
1982 beginning and filtering, and even with no filter we currently
1983 have to re-generate the entire clist, which is also expensive.
1985 I'm not sure what Network Monitor does, but it doesn't appear
1986 to give you an unfiltered display if you cancel. */
1993 /* Since all state for the frame was destroyed, mark the frame
1994 * as not visited, free the GSList referring to the state
1995 * data (the per-frame data itself was freed by
1996 * "init_dissection()"), and null out the GSList pointer. */
1997 frame_data_reset(fdata);
1998 frames_count = cf->count;
2001 /* Frame dependencies from the previous dissection/filtering are no longer valid. */
2002 fdata->flags.dependent_of_displayed = 0;
2004 if (!cf_read_frame(cf, fdata))
2005 break; /* error reading the frame */
2007 /* If the previous frame is displayed, and we haven't yet seen the
2008 selected frame, remember that frame - it's the closest one we've
2009 yet seen before the selected frame. */
2010 if (prev_frame_num != -1 && !selected_frame_seen && prev_frame->flags.passed_dfilter) {
2011 preceding_frame_num = prev_frame_num;
2012 preceding_frame = prev_frame;
2015 add_packet_to_packet_list(fdata, cf, &edt, dfcode,
2017 buffer_start_ptr(&cf->buf),
2018 add_to_packet_list);
2020 /* If this frame is displayed, and this is the first frame we've
2021 seen displayed after the selected frame, remember this frame -
2022 it's the closest one we've yet seen at or after the selected
2024 if (fdata->flags.passed_dfilter && selected_frame_seen && following_frame_num == -1) {
2025 following_frame_num = fdata->num;
2026 following_frame = fdata;
2028 if (fdata == selected_frame) {
2029 selected_frame_seen = TRUE;
2030 if (fdata->flags.passed_dfilter)
2031 selected_frame_num = fdata->num;
2034 /* Remember this frame - it'll be the previous frame
2035 on the next pass through the loop. */
2036 prev_frame_num = fdata->num;
2040 epan_dissect_cleanup(&edt);
2042 /* We are done redissecting the packet list. */
2043 cf->redissecting = FALSE;
2046 frames_count = cf->count;
2047 /* Clear out what remains of the visited flags and per-frame data
2050 XXX - that may cause various forms of bogosity when dissecting
2051 these frames, as they won't have been seen by this sequential
2052 pass, but the only alternative I see is to keep scanning them
2053 even though the user requested that the scan stop, and that
2054 would leave the user stuck with an Wireshark grinding on
2055 until it finishes. Should we just stick them with that? */
2056 for (; framenum <= frames_count; framenum++) {
2057 fdata = frame_data_sequence_find(cf->frames, framenum);
2058 frame_data_reset(fdata);
2062 /* We're done filtering the packets; destroy the progress bar if it
2064 if (progbar != NULL)
2065 destroy_progress_dlg(progbar);
2067 /* Unfreeze the packet list. */
2068 if (!add_to_packet_list)
2069 packet_list_recreate_visible_rows();
2071 /* Compute the time it took to filter the file */
2072 compute_elapsed(cf, &start_time);
2076 if (selected_frame_num == -1) {
2077 /* The selected frame didn't pass the filter. */
2078 if (selected_frame == NULL) {
2079 /* That's because there *was* no selected frame. Make the first
2080 displayed frame the current frame. */
2081 selected_frame_num = 0;
2083 /* Find the nearest displayed frame to the selected frame (whether
2084 it's before or after that frame) and make that the current frame.
2085 If the next and previous displayed frames are equidistant from the
2086 selected frame, choose the next one. */
2087 g_assert(following_frame == NULL ||
2088 following_frame->num >= selected_frame->num);
2089 g_assert(preceding_frame == NULL ||
2090 preceding_frame->num <= selected_frame->num);
2091 if (following_frame == NULL) {
2092 /* No frame after the selected frame passed the filter, so we
2093 have to select the last displayed frame before the selected
2095 selected_frame_num = preceding_frame_num;
2096 selected_frame = preceding_frame;
2097 } else if (preceding_frame == NULL) {
2098 /* No frame before the selected frame passed the filter, so we
2099 have to select the first displayed frame after the selected
2101 selected_frame_num = following_frame_num;
2102 selected_frame = following_frame;
2104 /* Frames before and after the selected frame passed the filter, so
2105 we'll select the previous frame */
2106 selected_frame_num = preceding_frame_num;
2107 selected_frame = preceding_frame;
2112 if (selected_frame_num == -1) {
2113 /* There are no frames displayed at all. */
2114 cf_unselect_packet(cf);
2116 /* Either the frame that was selected passed the filter, or we've
2117 found the nearest displayed frame to that frame. Select it, make
2118 it the focus row, and make it visible. */
2119 /* Set to invalid to force update of packet list and packet details */
2120 cf->current_row = -1;
2121 if (selected_frame_num == 0) {
2122 packet_list_select_first_row();
2124 if (!packet_list_select_row_from_data(selected_frame)) {
2125 /* We didn't find a row corresponding to this frame.
2126 This means that the frame isn't being displayed currently,
2127 so we can't select it. */
2128 simple_message_box(ESD_TYPE_INFO, NULL,
2129 "The capture file is probably not fully dissected.",
2130 "End of capture exceeded!");
2135 /* Cleanup and release all dfilter resources */
2136 dfilter_free(dfcode);
2141 * Scan trough all frame data and recalculate the ref time
2142 * without rereading the file.
2143 * XXX - do we need a progres bar or is this fast enough?
2146 ref_time_packets(capture_file *cf)
2153 cf->prev_dis = NULL;
2156 for (framenum = 1; framenum <= cf->count; framenum++) {
2157 fdata = frame_data_sequence_find(cf->frames, framenum);
2159 /* just add some value here until we know if it is being displayed or not */
2160 fdata->cum_bytes = cf->cum_bytes + fdata->pkt_len;
2166 /* If we don't have the time stamp of the first packet in the
2167 capture, it's because this is the first packet. Save the time
2168 stamp of this packet as the time stamp of the first packet. */
2169 if (cf->ref == NULL)
2171 /* if this frames is marked as a reference time frame, reset
2172 firstsec and firstusec to this frame */
2173 if (fdata->flags.ref_time)
2176 /* If we don't have the time stamp of the previous displayed packet,
2177 it's because this is the first displayed packet. Save the time
2178 stamp of this packet as the time stamp of the previous displayed
2180 if (cf->prev_dis == NULL) {
2181 cf->prev_dis = fdata;
2184 /* Get the time elapsed between the first packet and this packet. */
2185 fdata->frame_ref_num = (fdata != cf->ref) ? cf->ref->num : 0;
2186 nstime_delta(&rel_ts, &fdata->abs_ts, &cf->ref->abs_ts);
2188 /* If it's greater than the current elapsed time, set the elapsed time
2189 to it (we check for "greater than" so as not to be confused by
2190 time moving backwards). */
2191 if ((gint32)cf->elapsed_time.secs < rel_ts.secs
2192 || ((gint32)cf->elapsed_time.secs == rel_ts.secs && (gint32)cf->elapsed_time.nsecs < rel_ts.nsecs)) {
2193 cf->elapsed_time = rel_ts;
2196 /* If this frame is displayed, get the time elapsed between the
2197 previous displayed packet and this packet. */
2198 if ( fdata->flags.passed_dfilter ) {
2199 fdata->prev_dis_num = cf->prev_dis->num;
2200 cf->prev_dis = fdata;
2206 if ( (fdata->flags.passed_dfilter) || (fdata->flags.ref_time) ) {
2207 /* This frame either passed the display filter list or is marked as
2208 a time reference frame. All time reference frames are displayed
2209 even if they dont pass the display filter */
2210 if (fdata->flags.ref_time) {
2211 /* if this was a TIME REF frame we should reset the cum_bytes field */
2212 cf->cum_bytes = fdata->pkt_len;
2213 fdata->cum_bytes = cf->cum_bytes;
2215 /* increase cum_bytes with this packets length */
2216 cf->cum_bytes += fdata->pkt_len;
2229 process_specified_packets(capture_file *cf, packet_range_t *range,
2230 const char *string1, const char *string2, gboolean terminate_is_stop,
2231 gboolean (*callback)(capture_file *, frame_data *,
2232 struct wtap_pkthdr *, const guint8 *, void *),
2233 void *callback_args)
2238 psp_return_t ret = PSP_FINISHED;
2240 progdlg_t *progbar = NULL;
2243 gboolean progbar_stop_flag;
2244 GTimeVal progbar_start_time;
2245 gchar progbar_status_str[100];
2246 int progbar_nextstep;
2247 int progbar_quantum;
2248 range_process_e process_this;
2249 struct wtap_pkthdr phdr;
2251 memset(&phdr, 0, sizeof(struct wtap_pkthdr));
2252 buffer_init(&buf, 1500);
2254 /* Update the progress bar when it gets to this value. */
2255 progbar_nextstep = 0;
2256 /* When we reach the value that triggers a progress bar update,
2257 bump that value by this amount. */
2258 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2259 /* Count of packets at which we've looked. */
2261 /* Progress so far. */
2264 progbar_stop_flag = FALSE;
2265 g_get_current_time(&progbar_start_time);
2268 packet_range_process_init(range);
2270 /* Iterate through all the packets, printing the packets that
2271 were selected by the current display filter. */
2272 for (framenum = 1; framenum <= cf->count; framenum++) {
2273 fdata = frame_data_sequence_find(cf->frames, framenum);
2275 /* Create the progress bar if necessary.
2276 We check on every iteration of the loop, so that it takes no
2277 longer than the standard time to create it (otherwise, for a
2278 large file, we might take considerably longer than that standard
2279 time in order to get to the next progress bar step). */
2280 if (progbar == NULL)
2281 progbar = delayed_create_progress_dlg(cf->window, string1, string2,
2284 &progbar_start_time,
2287 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2288 when we update it, we have to run the GTK+ main loop to get it
2289 to repaint what's pending, and doing so may involve an "ioctl()"
2290 to see if there's any pending input from an X server, and doing
2291 that for every packet can be costly, especially on a big file. */
2292 if (progbar_count >= progbar_nextstep) {
2293 /* let's not divide by zero. I should never be started
2294 * with count == 0, so let's assert that
2296 g_assert(cf->count > 0);
2297 progbar_val = (gfloat) progbar_count / cf->count;
2299 if (progbar != NULL) {
2300 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
2301 "%4u of %u packets", progbar_count, cf->count);
2302 update_progress_dlg(progbar, progbar_val, progbar_status_str);
2305 progbar_nextstep += progbar_quantum;
2308 if (progbar_stop_flag) {
2309 /* Well, the user decided to abort the operation. Just stop,
2310 and arrange to return PSP_STOPPED to our caller, so they know
2311 it was stopped explicitly. */
2318 if (range != NULL) {
2319 /* do we have to process this packet? */
2320 process_this = packet_range_process_packet(range, fdata);
2321 if (process_this == range_process_next) {
2322 /* this packet uninteresting, continue with next one */
2324 } else if (process_this == range_processing_finished) {
2325 /* all interesting packets processed, stop the loop */
2330 /* Get the packet */
2331 if (!cf_read_frame_r(cf, fdata, &phdr, &buf)) {
2332 /* Attempt to get the packet failed. */
2336 /* Process the packet */
2337 if (!callback(cf, fdata, &phdr, buffer_start_ptr(&buf), callback_args)) {
2338 /* Callback failed. We assume it reported the error appropriately. */
2344 /* We're done printing the packets; destroy the progress bar if
2346 if (progbar != NULL)
2347 destroy_progress_dlg(progbar);
2357 } retap_callback_args_t;
2360 retap_packet(capture_file *cf _U_, frame_data *fdata,
2361 struct wtap_pkthdr *phdr, const guint8 *pd,
2364 retap_callback_args_t *args = (retap_callback_args_t *)argsp;
2366 epan_dissect_run_with_taps(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, args->cinfo);
2367 epan_dissect_reset(&args->edt);
2373 cf_retap_packets(capture_file *cf)
2375 packet_range_t range;
2376 retap_callback_args_t callback_args;
2377 gboolean construct_protocol_tree;
2378 gboolean filtering_tap_listeners;
2382 /* Do we have any tap listeners with filters? */
2383 filtering_tap_listeners = have_filtering_tap_listeners();
2385 tap_flags = union_of_tap_listener_flags();
2387 /* If any tap listeners have filters, or require the protocol tree,
2388 construct the protocol tree. */
2389 construct_protocol_tree = filtering_tap_listeners ||
2390 (tap_flags & TL_REQUIRES_PROTO_TREE);
2392 /* If any tap listeners require the columns, construct them. */
2393 callback_args.cinfo = (tap_flags & TL_REQUIRES_COLUMNS) ? &cf->cinfo : NULL;
2395 /* Reset the tap listeners. */
2396 reset_tap_listeners();
2398 epan_dissect_init(&callback_args.edt, cf->epan, construct_protocol_tree, FALSE);
2400 /* Iterate through the list of packets, dissecting all packets and
2401 re-running the taps. */
2402 packet_range_init(&range, cf);
2403 packet_range_process_init(&range);
2405 ret = process_specified_packets(cf, &range, "Recalculating statistics on",
2406 "all packets", TRUE, retap_packet,
2409 epan_dissect_cleanup(&callback_args.edt);
2413 /* Completed successfully. */
2417 /* Well, the user decided to abort the refiltering.
2418 Return CF_READ_ABORTED so our caller knows they did that. */
2419 return CF_READ_ABORTED;
2422 /* Error while retapping. */
2423 return CF_READ_ERROR;
2426 g_assert_not_reached();
2431 print_args_t *print_args;
2432 gboolean print_header_line;
2433 char *header_line_buf;
2434 int header_line_buf_len;
2435 gboolean print_formfeed;
2436 gboolean print_separator;
2440 int num_visible_cols;
2443 } print_callback_args_t;
2446 print_packet(capture_file *cf, frame_data *fdata,
2447 struct wtap_pkthdr *phdr, const guint8 *pd,
2450 print_callback_args_t *args = (print_callback_args_t *)argsp;
2456 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2457 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2459 /* Fill in the column information if we're printing the summary
2461 if (args->print_args->print_summary) {
2462 col_custom_prime_edt(&args->edt, &cf->cinfo);
2463 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2464 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2466 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2468 if (args->print_formfeed) {
2469 if (!new_page(args->print_args->stream))
2472 if (args->print_separator) {
2473 if (!print_line(args->print_args->stream, 0, ""))
2479 * We generate bookmarks, if the output format supports them.
2480 * The name is "__frameN__".
2482 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
2484 if (args->print_args->print_summary) {
2485 if (!args->print_args->print_col_headings)
2486 args->print_header_line = FALSE;
2487 if (args->print_header_line) {
2488 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
2490 args->print_header_line = FALSE; /* we might not need to print any more */
2492 cp = &args->line_buf[0];
2494 for (i = 0; i < args->num_visible_cols; i++) {
2495 /* Find the length of the string for this column. */
2496 column_len = (int) strlen(cf->cinfo.col_data[args->visible_cols[i]]);
2497 if (args->col_widths[i] > column_len)
2498 column_len = args->col_widths[i];
2500 /* Make sure there's room in the line buffer for the column; if not,
2501 double its length. */
2502 line_len += column_len + 1; /* "+1" for space */
2503 if (line_len > args->line_buf_len) {
2504 cp_off = (int) (cp - args->line_buf);
2505 args->line_buf_len = 2 * line_len;
2506 args->line_buf = (char *)g_realloc(args->line_buf, args->line_buf_len + 1);
2507 cp = args->line_buf + cp_off;
2510 /* Right-justify the packet number column. */
2511 if (cf->cinfo.col_fmt[args->visible_cols[i]] == COL_NUMBER)
2512 g_snprintf(cp, column_len+1, "%*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2514 g_snprintf(cp, column_len+1, "%-*s", args->col_widths[i], cf->cinfo.col_data[args->visible_cols[i]]);
2516 if (i != args->num_visible_cols - 1)
2522 * Generate a bookmark, using the summary line as the title.
2524 if (!print_bookmark(args->print_args->stream, bookmark_name,
2528 if (!print_line(args->print_args->stream, 0, args->line_buf))
2532 * Generate a bookmark, using "Frame N" as the title, as we're not
2533 * printing the summary line.
2535 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
2536 if (!print_bookmark(args->print_args->stream, bookmark_name,
2539 } /* if (print_summary) */
2541 if (args->print_args->print_dissections != print_dissections_none) {
2542 if (args->print_args->print_summary) {
2543 /* Separate the summary line from the tree with a blank line. */
2544 if (!print_line(args->print_args->stream, 0, ""))
2548 /* Print the information in that tree. */
2549 if (!proto_tree_print(args->print_args, &args->edt, args->print_args->stream))
2552 /* Print a blank line if we print anything after this (aka more than one packet). */
2553 args->print_separator = TRUE;
2555 /* Print a header line if we print any more packet summaries */
2556 if (args->print_args->print_col_headings)
2557 args->print_header_line = TRUE;
2560 if (args->print_args->print_hex) {
2561 if (args->print_args->print_summary || (args->print_args->print_dissections != print_dissections_none)) {
2562 if (!print_line(args->print_args->stream, 0, ""))
2565 /* Print the full packet data as hex. */
2566 if (!print_hex_data(args->print_args->stream, &args->edt))
2569 /* Print a blank line if we print anything after this (aka more than one packet). */
2570 args->print_separator = TRUE;
2572 /* Print a header line if we print any more packet summaries */
2573 if (args->print_args->print_col_headings)
2574 args->print_header_line = TRUE;
2575 } /* if (args->print_args->print_dissections != print_dissections_none) */
2577 epan_dissect_reset(&args->edt);
2579 /* do we want to have a formfeed between each packet from now on? */
2580 if (args->print_args->print_formfeed) {
2581 args->print_formfeed = TRUE;
2587 epan_dissect_reset(&args->edt);
2592 cf_print_packets(capture_file *cf, print_args_t *print_args)
2594 print_callback_args_t callback_args;
2597 int i, cp_off, column_len, line_len;
2598 int num_visible_col = 0, last_visible_col = 0, visible_col_count;
2602 gboolean proto_tree_needed;
2604 callback_args.print_args = print_args;
2605 callback_args.print_header_line = print_args->print_col_headings;
2606 callback_args.header_line_buf = NULL;
2607 callback_args.header_line_buf_len = 256;
2608 callback_args.print_formfeed = FALSE;
2609 callback_args.print_separator = FALSE;
2610 callback_args.line_buf = NULL;
2611 callback_args.line_buf_len = 256;
2612 callback_args.col_widths = NULL;
2613 callback_args.num_visible_cols = 0;
2614 callback_args.visible_cols = NULL;
2616 if (!print_preamble(print_args->stream, cf->filename, wireshark_gitversion)) {
2617 destroy_print_stream(print_args->stream);
2618 return CF_PRINT_WRITE_ERROR;
2621 if (print_args->print_summary) {
2622 /* We're printing packet summaries. Allocate the header line buffer
2623 and get the column widths. */
2624 callback_args.header_line_buf = (char *)g_malloc(callback_args.header_line_buf_len + 1);
2626 /* Find the number of visible columns and the last visible column */
2627 for (i = 0; i < prefs.num_cols; i++) {
2629 clp = g_list_nth(prefs.col_list, i);
2630 if (clp == NULL) /* Sanity check, Invalid column requested */
2633 cfmt = (fmt_data *) clp->data;
2634 if (cfmt->visible) {
2636 last_visible_col = i;
2640 /* Find the widths for each of the columns - maximum of the
2641 width of the title and the width of the data - and construct
2642 a buffer with a line containing the column titles. */
2643 callback_args.num_visible_cols = num_visible_col;
2644 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2645 callback_args.visible_cols = (gint *) g_malloc(sizeof(gint) * num_visible_col);
2646 cp = &callback_args.header_line_buf[0];
2648 visible_col_count = 0;
2649 for (i = 0; i < cf->cinfo.num_cols; i++) {
2651 clp = g_list_nth(prefs.col_list, i);
2652 if (clp == NULL) /* Sanity check, Invalid column requested */
2655 cfmt = (fmt_data *) clp->data;
2656 if (cfmt->visible == FALSE)
2659 /* Save the order of visible columns */
2660 callback_args.visible_cols[visible_col_count] = i;
2662 /* Don't pad the last column. */
2663 if (i == last_visible_col)
2664 callback_args.col_widths[visible_col_count] = 0;
2666 callback_args.col_widths[visible_col_count] = (gint) strlen(cf->cinfo.col_title[i]);
2667 data_width = get_column_char_width(get_column_format(i));
2668 if (data_width > callback_args.col_widths[visible_col_count])
2669 callback_args.col_widths[visible_col_count] = data_width;
2672 /* Find the length of the string for this column. */
2673 column_len = (int) strlen(cf->cinfo.col_title[i]);
2674 if (callback_args.col_widths[i] > column_len)
2675 column_len = callback_args.col_widths[visible_col_count];
2677 /* Make sure there's room in the line buffer for the column; if not,
2678 double its length. */
2679 line_len += column_len + 1; /* "+1" for space */
2680 if (line_len > callback_args.header_line_buf_len) {
2681 cp_off = (int) (cp - callback_args.header_line_buf);
2682 callback_args.header_line_buf_len = 2 * line_len;
2683 callback_args.header_line_buf = (char *)g_realloc(callback_args.header_line_buf,
2684 callback_args.header_line_buf_len + 1);
2685 cp = callback_args.header_line_buf + cp_off;
2688 /* Right-justify the packet number column. */
2689 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2690 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2692 g_snprintf(cp, column_len+1, "%-*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2694 if (i != cf->cinfo.num_cols - 1)
2697 visible_col_count++;
2701 /* Now start out the main line buffer with the same length as the
2702 header line buffer. */
2703 callback_args.line_buf_len = callback_args.header_line_buf_len;
2704 callback_args.line_buf = (char *)g_malloc(callback_args.line_buf_len + 1);
2705 } /* if (print_summary) */
2707 /* Create the protocol tree, and make it visible, if we're printing
2708 the dissection or the hex data.
2709 XXX - do we need it if we're just printing the hex data? */
2711 callback_args.print_args->print_dissections != print_dissections_none ||
2712 callback_args.print_args->print_hex ||
2713 have_custom_cols(&cf->cinfo);
2714 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2716 /* Iterate through the list of packets, printing the packets we were
2718 ret = process_specified_packets(cf, &print_args->range, "Printing",
2719 "selected packets", TRUE, print_packet,
2721 epan_dissect_cleanup(&callback_args.edt);
2722 g_free(callback_args.header_line_buf);
2723 g_free(callback_args.line_buf);
2724 g_free(callback_args.col_widths);
2725 g_free(callback_args.visible_cols);
2730 /* Completed successfully. */
2734 /* Well, the user decided to abort the printing.
2736 XXX - note that what got generated before they did that
2737 will get printed if we're piping to a print program; we'd
2738 have to write to a file and then hand that to the print
2739 program to make it actually not print anything. */
2743 /* Error while printing.
2745 XXX - note that what got generated before they did that
2746 will get printed if we're piping to a print program; we'd
2747 have to write to a file and then hand that to the print
2748 program to make it actually not print anything. */
2749 destroy_print_stream(print_args->stream);
2750 return CF_PRINT_WRITE_ERROR;
2753 if (!print_finale(print_args->stream)) {
2754 destroy_print_stream(print_args->stream);
2755 return CF_PRINT_WRITE_ERROR;
2758 if (!destroy_print_stream(print_args->stream))
2759 return CF_PRINT_WRITE_ERROR;
2767 } write_packet_callback_args_t;
2770 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2771 struct wtap_pkthdr *phdr, const guint8 *pd,
2774 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2776 /* Create the protocol tree, but don't fill in the column information. */
2777 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
2779 /* Write out the information in that tree. */
2780 proto_tree_write_pdml(&args->edt, args->fh);
2782 epan_dissect_reset(&args->edt);
2784 return !ferror(args->fh);
2788 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2790 write_packet_callback_args_t callback_args;
2794 fh = ws_fopen(print_args->file, "w");
2796 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2798 write_pdml_preamble(fh, cf->filename);
2801 return CF_PRINT_WRITE_ERROR;
2804 callback_args.fh = fh;
2805 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
2807 /* Iterate through the list of packets, printing the packets we were
2809 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2810 "selected packets", TRUE,
2811 write_pdml_packet, &callback_args);
2813 epan_dissect_cleanup(&callback_args.edt);
2818 /* Completed successfully. */
2822 /* Well, the user decided to abort the printing. */
2826 /* Error while printing. */
2828 return CF_PRINT_WRITE_ERROR;
2831 write_pdml_finale(fh);
2834 return CF_PRINT_WRITE_ERROR;
2837 /* XXX - check for an error */
2844 write_psml_packet(capture_file *cf, frame_data *fdata,
2845 struct wtap_pkthdr *phdr, const guint8 *pd,
2848 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2850 col_custom_prime_edt(&args->edt, &cf->cinfo);
2851 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2852 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2854 /* Write out the information in that tree. */
2855 proto_tree_write_psml(&args->edt, args->fh);
2857 epan_dissect_reset(&args->edt);
2859 return !ferror(args->fh);
2863 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2865 write_packet_callback_args_t callback_args;
2869 gboolean proto_tree_needed;
2871 fh = ws_fopen(print_args->file, "w");
2873 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2875 write_psml_preamble(fh);
2878 return CF_PRINT_WRITE_ERROR;
2881 callback_args.fh = fh;
2883 /* Fill in the column information, only create the protocol tree
2884 if having custom columns. */
2885 proto_tree_needed = have_custom_cols(&cf->cinfo);
2886 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2888 /* Iterate through the list of packets, printing the packets we were
2890 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2891 "selected packets", TRUE,
2892 write_psml_packet, &callback_args);
2894 epan_dissect_cleanup(&callback_args.edt);
2899 /* Completed successfully. */
2903 /* Well, the user decided to abort the printing. */
2907 /* Error while printing. */
2909 return CF_PRINT_WRITE_ERROR;
2912 write_psml_finale(fh);
2915 return CF_PRINT_WRITE_ERROR;
2918 /* XXX - check for an error */
2925 write_csv_packet(capture_file *cf, frame_data *fdata,
2926 struct wtap_pkthdr *phdr, const guint8 *pd,
2929 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
2931 /* Fill in the column information */
2932 col_custom_prime_edt(&args->edt, &cf->cinfo);
2933 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, &cf->cinfo);
2934 epan_dissect_fill_in_columns(&args->edt, FALSE, TRUE);
2936 /* Write out the information in that tree. */
2937 proto_tree_write_csv(&args->edt, args->fh);
2939 epan_dissect_reset(&args->edt);
2941 return !ferror(args->fh);
2945 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2947 write_packet_callback_args_t callback_args;
2948 gboolean proto_tree_needed;
2952 fh = ws_fopen(print_args->file, "w");
2954 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2956 write_csv_preamble(fh);
2959 return CF_PRINT_WRITE_ERROR;
2962 callback_args.fh = fh;
2964 /* only create the protocol tree if having custom columns. */
2965 proto_tree_needed = have_custom_cols(&cf->cinfo);
2966 epan_dissect_init(&callback_args.edt, cf->epan, proto_tree_needed, proto_tree_needed);
2968 /* Iterate through the list of packets, printing the packets we were
2970 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2971 "selected packets", TRUE,
2972 write_csv_packet, &callback_args);
2974 epan_dissect_cleanup(&callback_args.edt);
2979 /* Completed successfully. */
2983 /* Well, the user decided to abort the printing. */
2987 /* Error while printing. */
2989 return CF_PRINT_WRITE_ERROR;
2992 write_csv_finale(fh);
2995 return CF_PRINT_WRITE_ERROR;
2998 /* XXX - check for an error */
3005 write_carrays_packet(capture_file *cf _U_, frame_data *fdata,
3006 struct wtap_pkthdr *phdr,
3007 const guint8 *pd, void *argsp)
3009 write_packet_callback_args_t *args = (write_packet_callback_args_t *)argsp;
3011 epan_dissect_run(&args->edt, phdr, frame_tvbuff_new(fdata, pd), fdata, NULL);
3012 proto_tree_write_carrays(fdata->num, args->fh, &args->edt);
3013 epan_dissect_reset(&args->edt);
3015 return !ferror(args->fh);
3019 cf_write_carrays_packets(capture_file *cf, print_args_t *print_args)
3021 write_packet_callback_args_t callback_args;
3025 fh = ws_fopen(print_args->file, "w");
3028 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
3030 write_carrays_preamble(fh);
3034 return CF_PRINT_WRITE_ERROR;
3037 callback_args.fh = fh;
3038 epan_dissect_init(&callback_args.edt, cf->epan, TRUE, TRUE);
3040 /* Iterate through the list of packets, printing the packets we were
3042 ret = process_specified_packets(cf, &print_args->range,
3044 "selected packets", TRUE,
3045 write_carrays_packet, &callback_args);
3047 epan_dissect_cleanup(&callback_args.edt);
3051 /* Completed successfully. */
3054 /* Well, the user decided to abort the printing. */
3057 /* Error while printing. */
3059 return CF_PRINT_WRITE_ERROR;
3062 write_carrays_finale(fh);
3066 return CF_PRINT_WRITE_ERROR;
3074 cf_find_packet_protocol_tree(capture_file *cf, const char *string,
3075 search_direction dir)
3079 mdata.string = string;
3080 mdata.string_len = strlen(string);
3081 return find_packet(cf, match_protocol_tree, &mdata, dir);
3085 cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree, match_data *mdata)
3087 mdata->frame_matched = FALSE;
3088 mdata->string = convert_string_case(cf->sfilter, cf->case_type);
3089 mdata->string_len = strlen(mdata->string);
3091 /* Iterate through all the nodes looking for matching text */
3092 proto_tree_children_foreach(tree, match_subtree_text, mdata);
3093 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3097 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
3099 match_data *mdata = (match_data *)criterion;
3102 /* Load the frame's data. */
3103 if (!cf_read_frame(cf, fdata)) {
3104 /* Attempt to get the packet failed. */
3108 /* Construct the protocol tree, including the displayed text */
3109 epan_dissect_init(&edt, cf->epan, TRUE, TRUE);
3110 /* We don't need the column information */
3111 epan_dissect_run(&edt, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3113 /* Iterate through all the nodes, seeing if they have text that matches. */
3115 mdata->frame_matched = FALSE;
3116 proto_tree_children_foreach(edt.tree, match_subtree_text, mdata);
3117 epan_dissect_cleanup(&edt);
3118 return mdata->frame_matched ? MR_MATCHED : MR_NOTMATCHED;
3122 match_subtree_text(proto_node *node, gpointer data)
3124 match_data *mdata = (match_data *) data;
3125 const gchar *string = mdata->string;
3126 size_t string_len = mdata->string_len;
3127 capture_file *cf = mdata->cf;
3128 field_info *fi = PNODE_FINFO(node);
3129 gchar label_str[ITEM_LABEL_LENGTH];
3136 /* dissection with an invisible proto tree? */
3139 if (mdata->frame_matched) {
3140 /* We already had a match; don't bother doing any more work. */
3144 /* Don't match invisible entries. */
3145 if (PROTO_ITEM_IS_HIDDEN(node))
3148 /* was a free format label produced? */
3150 label_ptr = fi->rep->representation;
3152 /* no, make a generic label */
3153 label_ptr = label_str;
3154 proto_item_fill_label(fi, label_str);
3157 /* Does that label match? */
3158 label_len = strlen(label_ptr);
3159 for (i = 0; i < label_len; i++) {
3160 c_char = label_ptr[i];
3162 c_char = toupper(c_char);
3163 if (c_char == string[c_match]) {
3165 if (c_match == string_len) {
3166 /* No need to look further; we have a match */
3167 mdata->frame_matched = TRUE;
3175 /* Recurse into the subtree, if it exists */
3176 if (node->first_child != NULL)
3177 proto_tree_children_foreach(node, match_subtree_text, mdata);
3181 cf_find_packet_summary_line(capture_file *cf, const char *string,
3182 search_direction dir)
3186 mdata.string = string;
3187 mdata.string_len = strlen(string);
3188 return find_packet(cf, match_summary_line, &mdata, dir);
3192 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
3194 match_data *mdata = (match_data *)criterion;
3195 const gchar *string = mdata->string;
3196 size_t string_len = mdata->string_len;
3198 const char *info_column;
3199 size_t info_column_len;
3200 match_result result = MR_NOTMATCHED;
3206 /* Load the frame's data. */
3207 if (!cf_read_frame(cf, fdata)) {
3208 /* Attempt to get the packet failed. */
3212 /* Don't bother constructing the protocol tree */
3213 epan_dissect_init(&edt, cf->epan, FALSE, FALSE);
3214 /* Get the column information */
3215 epan_dissect_run(&edt, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata,
3218 /* Find the Info column */
3219 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
3220 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
3221 /* Found it. See if we match. */
3222 info_column = edt.pi.cinfo->col_data[colx];
3223 info_column_len = strlen(info_column);
3224 for (i = 0; i < info_column_len; i++) {
3225 c_char = info_column[i];
3227 c_char = toupper(c_char);
3228 if (c_char == string[c_match]) {
3230 if (c_match == string_len) {
3231 result = MR_MATCHED;
3240 epan_dissect_cleanup(&edt);
3247 } cbs_t; /* "Counted byte string" */
3251 * The current match_* routines only support ASCII case insensitivity and don't
3252 * convert UTF-8 inputs to UTF-16 for matching.
3254 * We could modify them to use the GLib Unicode routines or the International
3255 * Components for Unicode library but it's not apparent that we could do so
3256 * without consuming a lot more CPU and memory or that searching would be
3257 * significantly better.
3261 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size,
3262 search_direction dir)
3267 info.data_len = string_size;
3269 /* String or hex search? */
3271 /* String search - what type of string? */
3272 switch (cf->scs_type) {
3274 case SCS_NARROW_AND_WIDE:
3275 return find_packet(cf, match_narrow_and_wide, &info, dir);
3278 return find_packet(cf, match_narrow, &info, dir);
3281 return find_packet(cf, match_wide, &info, dir);
3284 g_assert_not_reached();
3288 return find_packet(cf, match_binary, &info, dir);
3292 match_narrow_and_wide(capture_file *cf, frame_data *fdata, void *criterion)
3294 cbs_t *info = (cbs_t *)criterion;
3295 const guint8 *ascii_text = info->data;
3296 size_t textlen = info->data_len;
3297 match_result result;
3304 /* Load the frame's data. */
3305 if (!cf_read_frame(cf, fdata)) {
3306 /* Attempt to get the packet failed. */
3310 result = MR_NOTMATCHED;
3311 buf_len = fdata->cap_len;
3312 pd = buffer_start_ptr(&cf->buf);
3314 while (i < buf_len) {
3317 c_char = toupper(c_char);
3318 if (c_char != '\0') {
3319 if (c_char == ascii_text[c_match]) {
3321 if (c_match == textlen) {
3322 result = MR_MATCHED;
3323 cf->search_pos = i; /* Save the position of the last character
3324 for highlighting the field. */
3329 g_assert(i>=c_match);
3330 i -= (guint32)c_match;
3340 match_narrow(capture_file *cf, frame_data *fdata, void *criterion)
3343 cbs_t *info = (cbs_t *)criterion;
3344 const guint8 *ascii_text = info->data;
3345 size_t textlen = info->data_len;
3346 match_result result;
3352 /* Load the frame's data. */
3353 if (!cf_read_frame(cf, fdata)) {
3354 /* Attempt to get the packet failed. */
3358 result = MR_NOTMATCHED;
3359 buf_len = fdata->cap_len;
3360 pd = buffer_start_ptr(&cf->buf);
3362 while (i < buf_len) {
3365 c_char = toupper(c_char);
3366 if (c_char == ascii_text[c_match]) {
3368 if (c_match == textlen) {
3369 result = MR_MATCHED;
3370 cf->search_pos = i; /* Save the position of the last character
3371 for highlighting the field. */
3376 g_assert(i>=c_match);
3377 i -= (guint32)c_match;
3387 match_wide(capture_file *cf, frame_data *fdata, void *criterion)
3389 cbs_t *info = (cbs_t *)criterion;
3390 const guint8 *ascii_text = info->data;
3391 size_t textlen = info->data_len;
3392 match_result result;
3399 /* Load the frame's data. */
3400 if (!cf_read_frame(cf, fdata)) {
3401 /* Attempt to get the packet failed. */
3405 result = MR_NOTMATCHED;
3406 buf_len = fdata->cap_len;
3407 pd = buffer_start_ptr(&cf->buf);
3409 while (i < buf_len) {
3412 c_char = toupper(c_char);
3413 if (c_char == ascii_text[c_match]) {
3415 if (c_match == textlen) {
3416 result = MR_MATCHED;
3417 cf->search_pos = i; /* Save the position of the last character
3418 for highlighting the field. */
3424 g_assert(i>=(c_match*2));
3425 i -= (guint32)c_match*2;
3434 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
3436 cbs_t *info = (cbs_t *)criterion;
3437 const guint8 *binary_data = info->data;
3438 size_t datalen = info->data_len;
3439 match_result result;
3445 /* Load the frame's data. */
3446 if (!cf_read_frame(cf, fdata)) {
3447 /* Attempt to get the packet failed. */
3451 result = MR_NOTMATCHED;
3452 buf_len = fdata->cap_len;
3453 pd = buffer_start_ptr(&cf->buf);
3455 while (i < buf_len) {
3456 if (pd[i] == binary_data[c_match]) {
3458 if (c_match == datalen) {
3459 result = MR_MATCHED;
3460 cf->search_pos = i; /* Save the position of the last character
3461 for highlighting the field. */
3466 g_assert(i>=c_match);
3467 i -= (guint32)c_match;
3476 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
3477 search_direction dir)
3479 return find_packet(cf, match_dfilter, sfcode, dir);
3483 cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
3484 search_direction dir)
3489 if (!dfilter_compile(filter, &sfcode)) {
3491 * XXX - this shouldn't happen, as the filter string is machine
3496 if (sfcode == NULL) {
3498 * XXX - this shouldn't happen, as the filter string is machine
3503 result = find_packet(cf, match_dfilter, sfcode, dir);
3504 dfilter_free(sfcode);
3509 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
3511 dfilter_t *sfcode = (dfilter_t *)criterion;
3513 match_result result;
3515 /* Load the frame's data. */
3516 if (!cf_read_frame(cf, fdata)) {
3517 /* Attempt to get the packet failed. */
3521 epan_dissect_init(&edt, cf->epan, TRUE, FALSE);
3522 epan_dissect_prime_dfilter(&edt, sfcode);
3523 epan_dissect_run(&edt, &cf->phdr, frame_tvbuff_new_buffer(fdata, &cf->buf), fdata, NULL);
3524 result = dfilter_apply_edt(sfcode, &edt) ? MR_MATCHED : MR_NOTMATCHED;
3525 epan_dissect_cleanup(&edt);
3530 cf_find_packet_marked(capture_file *cf, search_direction dir)
3532 return find_packet(cf, match_marked, NULL, dir);
3536 match_marked(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3538 return fdata->flags.marked ? MR_MATCHED : MR_NOTMATCHED;
3542 cf_find_packet_time_reference(capture_file *cf, search_direction dir)
3544 return find_packet(cf, match_time_reference, NULL, dir);
3548 match_time_reference(capture_file *cf _U_, frame_data *fdata, void *criterion _U_)
3550 return fdata->flags.ref_time ? MR_MATCHED : MR_NOTMATCHED;
3554 find_packet(capture_file *cf,
3555 match_result (*match_function)(capture_file *, frame_data *, void *),
3556 void *criterion, search_direction dir)
3558 frame_data *start_fd;
3561 frame_data *new_fd = NULL;
3562 progdlg_t *progbar = NULL;
3567 GTimeVal start_time;
3568 gchar status_str[100];
3569 int progbar_nextstep;
3570 int progbar_quantum;
3572 match_result result;
3574 start_fd = cf->current_frame;
3575 if (start_fd != NULL) {
3576 /* Iterate through the list of packets, starting at the packet we've
3577 picked, calling a routine to run the filter on the packet, see if
3578 it matches, and stop if so. */
3580 framenum = start_fd->num;
3582 /* Update the progress bar when it gets to this value. */
3583 progbar_nextstep = 0;
3584 /* When we reach the value that triggers a progress bar update,
3585 bump that value by this amount. */
3586 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
3587 /* Progress so far. */
3591 g_get_current_time(&start_time);
3593 title = cf->sfilter?cf->sfilter:"";
3595 /* Create the progress bar if necessary.
3596 We check on every iteration of the loop, so that it takes no
3597 longer than the standard time to create it (otherwise, for a
3598 large file, we might take considerably longer than that standard
3599 time in order to get to the next progress bar step). */
3600 if (progbar == NULL)
3601 progbar = delayed_create_progress_dlg(cf->window, "Searching", title,
3602 FALSE, &stop_flag, &start_time, progbar_val);
3604 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3605 when we update it, we have to run the GTK+ main loop to get it
3606 to repaint what's pending, and doing so may involve an "ioctl()"
3607 to see if there's any pending input from an X server, and doing
3608 that for every packet can be costly, especially on a big file. */
3609 if (count >= progbar_nextstep) {
3610 /* let's not divide by zero. I should never be started
3611 * with count == 0, so let's assert that
3613 g_assert(cf->count > 0);
3615 progbar_val = (gfloat) count / cf->count;
3617 if (progbar != NULL) {
3618 g_snprintf(status_str, sizeof(status_str),
3619 "%4u of %u packets", count, cf->count);
3620 update_progress_dlg(progbar, progbar_val, status_str);
3623 progbar_nextstep += progbar_quantum;
3627 /* Well, the user decided to abort the search. Go back to the
3628 frame where we started. */
3633 /* Go past the current frame. */
3634 if (dir == SD_BACKWARD) {
3635 /* Go on to the previous frame. */
3636 if (framenum == 1) {
3638 * XXX - other apps have a bit more of a detailed message
3639 * for this, and instead of offering "OK" and "Cancel",
3640 * they offer things such as "Continue" and "Cancel";
3641 * we need an API for popping up alert boxes with
3642 * {Verb} and "Cancel".
3645 if (prefs.gui_find_wrap)
3647 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3648 framenum = cf->count; /* wrap around */
3652 statusbar_push_temporary_msg("Search reached the beginning.");
3653 framenum = start_fd->num; /* stay on previous packet */
3658 /* Go on to the next frame. */
3659 if (framenum == cf->count) {
3660 if (prefs.gui_find_wrap)
3662 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3663 framenum = 1; /* wrap around */
3667 statusbar_push_temporary_msg("Search reached the end.");
3668 framenum = start_fd->num; /* stay on previous packet */
3673 fdata = frame_data_sequence_find(cf->frames, framenum);
3677 /* Is this packet in the display? */
3678 if (fdata->flags.passed_dfilter) {
3679 /* Yes. Does it match the search criterion? */
3680 result = (*match_function)(cf, fdata, criterion);
3681 if (result == MR_ERROR) {
3682 /* Error; our caller has reported the error. Go back to the frame
3683 where we started. */
3686 } else if (result == MR_MATCHED) {
3687 /* Yes. Go to the new frame. */
3693 if (fdata == start_fd) {
3694 /* We're back to the frame we were on originally, and that frame
3695 doesn't match the search filter. The search failed. */
3700 /* We're done scanning the packets; destroy the progress bar if it
3702 if (progbar != NULL)
3703 destroy_progress_dlg(progbar);
3706 if (new_fd != NULL) {
3707 /* Find and select */
3708 cf->search_in_progress = TRUE;
3709 found = packet_list_select_row_from_data(new_fd);
3710 cf->search_in_progress = FALSE;
3711 cf->search_pos = 0; /* Reset the position */
3713 /* We didn't find a row corresponding to this frame.
3714 This means that the frame isn't being displayed currently,
3715 so we can't select it. */
3716 simple_message_box(ESD_TYPE_INFO, NULL,
3717 "The capture file is probably not fully dissected.",
3718 "End of capture exceeded!");
3721 return TRUE; /* success */
3723 return FALSE; /* failure */
3727 cf_goto_frame(capture_file *cf, guint fnumber)
3731 fdata = frame_data_sequence_find(cf->frames, fnumber);
3733 if (fdata == NULL) {
3734 /* we didn't find a packet with that packet number */
3735 statusbar_push_temporary_msg("There is no packet number %u.", fnumber);
3736 return FALSE; /* we failed to go to that packet */
3738 if (!fdata->flags.passed_dfilter) {
3739 /* that packet currently isn't displayed */
3740 /* XXX - add it to the set of displayed packets? */
3741 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber);
3742 return FALSE; /* we failed to go to that packet */
3745 if (!packet_list_select_row_from_data(fdata)) {
3746 /* We didn't find a row corresponding to this frame.
3747 This means that the frame isn't being displayed currently,
3748 so we can't select it. */
3749 simple_message_box(ESD_TYPE_INFO, NULL,
3750 "The capture file is probably not fully dissected.",
3751 "End of capture exceeded!");
3754 return TRUE; /* we got to that packet */
3758 cf_goto_top_frame(void)
3760 /* Find and select */
3761 packet_list_select_first_row();
3762 return TRUE; /* we got to that packet */
3766 cf_goto_bottom_frame(void)
3768 /* Find and select */
3769 packet_list_select_last_row();
3770 return TRUE; /* we got to that packet */
3774 * Go to frame specified by currently selected protocol tree item.
3777 cf_goto_framenum(capture_file *cf)
3779 header_field_info *hfinfo;
3782 if (cf->finfo_selected) {
3783 hfinfo = cf->finfo_selected->hfinfo;
3785 if (hfinfo->type == FT_FRAMENUM) {
3786 framenum = fvalue_get_uinteger(&cf->finfo_selected->value);
3788 return cf_goto_frame(cf, framenum);
3795 /* Select the packet on a given row. */
3797 cf_select_packet(capture_file *cf, int row)
3799 epan_dissect_t *old_edt;
3802 /* Get the frame data struct pointer for this frame */
3803 fdata = packet_list_get_row_data(row);
3805 if (fdata == NULL) {
3806 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3807 the first entry is added to it by "real_insert_row()", that row
3808 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3809 our version and the vanilla GTK+ version).
3811 This means that a "select-row" signal is emitted; this causes
3812 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3815 "cf_select_packet()" fetches, above, the data associated with the
3816 row that was selected; however, as "gtk_clist_append()", which
3817 called "real_insert_row()", hasn't yet returned, we haven't yet
3818 associated any data with that row, so we get back a null pointer.
3820 We can't assume that there's only one frame in the frame list,
3821 either, as we may be filtering the display.
3823 We therefore assume that, if "row" is 0, i.e. the first row
3824 is being selected, and "cf->first_displayed" equals
3825 "cf->last_displayed", i.e. there's only one frame being
3826 displayed, that frame is the frame we want.
3828 This means we have to set "cf->first_displayed" and
3829 "cf->last_displayed" before adding the row to the
3830 GtkCList; see the comment in "add_packet_to_packet_list()". */
3832 if (row == 0 && cf->first_displayed == cf->last_displayed)
3833 fdata = frame_data_sequence_find(cf->frames, cf->first_displayed);
3836 /* If fdata _still_ isn't set simply give up. */
3837 if (fdata == NULL) {
3841 /* Get the data in that frame. */
3842 if (!cf_read_frame (cf, fdata)) {
3846 /* Record that this frame is the current frame. */
3847 cf->current_frame = fdata;
3848 cf->current_row = row;
3851 /* Create the logical protocol tree. */
3852 /* We don't need the columns here. */
3853 cf->edt = epan_dissect_new(cf->epan, TRUE, TRUE);
3855 tap_build_interesting(cf->edt);
3856 epan_dissect_run(cf->edt, &cf->phdr, frame_tvbuff_new_buffer(cf->current_frame, &cf->buf),
3857 cf->current_frame, NULL);
3859 dfilter_macro_build_ftv_cache(cf->edt->tree);
3861 cf_callback_invoke(cf_cb_packet_selected, cf);
3863 if (old_edt != NULL)
3864 epan_dissect_free(old_edt);
3868 /* Unselect the selected packet, if any. */
3870 cf_unselect_packet(capture_file *cf)
3872 epan_dissect_t *old_edt = cf->edt;
3876 /* No packet is selected. */
3877 cf->current_frame = NULL;
3878 cf->current_row = 0;
3880 cf_callback_invoke(cf_cb_packet_unselected, cf);
3882 /* No protocol tree means no selected field. */
3883 cf_unselect_field(cf);
3885 /* Destroy the epan_dissect_t for the unselected packet. */
3886 if (old_edt != NULL)
3887 epan_dissect_free(old_edt);
3890 /* Unset the selected protocol tree field, if any. */
3892 cf_unselect_field(capture_file *cf)
3894 cf->finfo_selected = NULL;
3896 cf_callback_invoke(cf_cb_field_unselected, cf);
3900 * Mark a particular frame.
3903 cf_mark_frame(capture_file *cf, frame_data *frame)
3905 if (! frame->flags.marked) {
3906 frame->flags.marked = TRUE;
3907 if (cf->count > cf->marked_count)
3913 * Unmark a particular frame.
3916 cf_unmark_frame(capture_file *cf, frame_data *frame)
3918 if (frame->flags.marked) {
3919 frame->flags.marked = FALSE;
3920 if (cf->marked_count > 0)
3926 * Ignore a particular frame.
3929 cf_ignore_frame(capture_file *cf, frame_data *frame)
3931 if (! frame->flags.ignored) {
3932 frame->flags.ignored = TRUE;
3933 if (cf->count > cf->ignored_count)
3934 cf->ignored_count++;
3939 * Un-ignore a particular frame.
3942 cf_unignore_frame(capture_file *cf, frame_data *frame)
3944 if (frame->flags.ignored) {
3945 frame->flags.ignored = FALSE;
3946 if (cf->ignored_count > 0)
3947 cf->ignored_count--;
3952 * Read the comment in SHB block
3956 cf_read_shb_comment(capture_file *cf)
3958 wtapng_section_t *shb_inf;
3959 const gchar *temp_str;
3961 /* Get info from SHB */
3962 shb_inf = wtap_file_get_shb_info(cf->wth);
3963 if (shb_inf == NULL)
3965 temp_str = shb_inf->opt_comment;
3973 cf_update_capture_comment(capture_file *cf, gchar *comment)
3975 wtapng_section_t *shb_inf;
3977 /* Get info from SHB */
3978 shb_inf = wtap_file_get_shb_info(cf->wth);
3980 /* See if the comment has changed or not */
3981 if (shb_inf && shb_inf->opt_comment) {
3982 if (strcmp(shb_inf->opt_comment, comment) == 0) {
3991 /* The comment has changed, let's update it */
3992 wtap_write_shb_comment(cf->wth, comment);
3993 /* Mark the file as having unsaved changes */
3994 cf->unsaved_changes = TRUE;
3998 cf_get_user_packet_comment(capture_file *cf, const frame_data *fd)
4000 if (cf->frames_user_comments)
4001 return (const char *)g_tree_lookup(cf->frames_user_comments, fd);
4008 cf_get_comment(capture_file *cf, const frame_data *fd)
4010 /* fetch user comment */
4011 if (fd->flags.has_user_comment)
4012 return g_strdup(cf_get_user_packet_comment(cf, fd));
4014 /* fetch phdr comment */
4015 if (fd->flags.has_phdr_comment) {
4016 struct wtap_pkthdr phdr; /* Packet header */
4017 Buffer buf; /* Packet data */
4019 phdr.opt_comment = NULL;
4021 buffer_init(&buf, 1500);
4022 if (!cf_read_frame_r(cf, fd, &phdr, &buf))
4023 { /* XXX, what we can do here? */ }
4026 return phdr.opt_comment;
4032 frame_cmp(gconstpointer a, gconstpointer b, gpointer user_data _U_)
4034 const frame_data *fdata1 = (const frame_data *) a;
4035 const frame_data *fdata2 = (const frame_data *) b;
4037 return (fdata1->num < fdata2->num) ? -1 :
4038 (fdata1->num > fdata2->num) ? 1 :
4043 cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment)
4045 char *pkt_comment = cf_get_comment(cf, fd);
4047 /* Check if the comment has changed */
4048 if (!g_strcmp0(pkt_comment, new_comment)) {
4049 g_free(pkt_comment);
4052 g_free(pkt_comment);
4055 cf->packet_comment_count--;
4058 cf->packet_comment_count++;
4060 fd->flags.has_user_comment = TRUE;
4062 if (!cf->frames_user_comments)
4063 cf->frames_user_comments = g_tree_new_full(frame_cmp, NULL, NULL, g_free);
4065 /* insert new packet comment */
4066 g_tree_replace(cf->frames_user_comments, fd, g_strdup(new_comment));
4068 expert_update_comment_count(cf->packet_comment_count);
4070 /* OK, we have unsaved changes. */
4071 cf->unsaved_changes = TRUE;
4076 * What types of comments does this capture file have?
4079 cf_comment_types(capture_file *cf)
4081 guint32 comment_types = 0;
4083 if (cf_read_shb_comment(cf) != NULL)
4084 comment_types |= WTAP_COMMENT_PER_SECTION;
4085 if (cf->packet_comment_count != 0)
4086 comment_types |= WTAP_COMMENT_PER_PACKET;
4087 return comment_types;
4094 } save_callback_args_t;
4097 * Save a capture to a file, in a particular format, saving either
4098 * all packets, all currently-displayed packets, or all marked packets.
4100 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4101 * up a message box for the failure.
4104 save_packet(capture_file *cf _U_, frame_data *fdata,
4105 struct wtap_pkthdr *phdr, const guint8 *pd,
4108 save_callback_args_t *args = (save_callback_args_t *)argsp;
4109 struct wtap_pkthdr hdr;
4111 gchar *display_basename;
4112 const char *pkt_comment;
4114 if (fdata->flags.has_user_comment)
4115 pkt_comment = cf_get_user_packet_comment(cf, fdata);
4117 pkt_comment = phdr->opt_comment;
4119 /* init the wtap header for saving */
4120 /* TODO: reuse phdr */
4121 /* XXX - these are the only flags that correspond to data that we have
4122 in the frame_data structure and that matter on a per-packet basis.
4124 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
4125 and "on the wire" lengths, or it doesn't.
4127 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
4130 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
4131 from the packet flags. */
4132 hdr.presence_flags = 0;
4133 if (fdata->flags.has_ts)
4134 hdr.presence_flags |= WTAP_HAS_TS;
4135 if (phdr->presence_flags & WTAP_HAS_INTERFACE_ID)
4136 hdr.presence_flags |= WTAP_HAS_INTERFACE_ID;
4137 if (phdr->presence_flags & WTAP_HAS_PACK_FLAGS)
4138 hdr.presence_flags |= WTAP_HAS_PACK_FLAGS;
4139 hdr.ts.secs = fdata->abs_ts.secs;
4140 hdr.ts.nsecs = fdata->abs_ts.nsecs;
4141 hdr.caplen = fdata->cap_len;
4142 hdr.len = fdata->pkt_len;
4143 hdr.pkt_encap = fdata->lnk_t;
4145 hdr.interface_id = phdr->interface_id; /* identifier of the interface. */
4147 hdr.pack_flags = phdr->pack_flags;
4148 hdr.opt_comment = g_strdup(pkt_comment);
4151 hdr.pseudo_header = phdr->pseudo_header;
4154 hdr.pack_flags = /* XXX - 0 for now (any value for "we don't have it"?) */
4156 /* and save the packet */
4157 if (!wtap_dump(args->pdh, &hdr, pd, &err)) {
4159 /* Wiretap error. */
4162 case WTAP_ERR_UNSUPPORTED_ENCAP:
4164 * This is a problem with the particular frame we're writing and
4165 * the file type and subtype we're writing; note that, and report
4166 * the frame number and file type/subtype.
4168 simple_error_message_box(
4169 "Frame %u has a network type that can't be saved in a \"%s\" file.",
4170 fdata->num, wtap_file_type_subtype_string(args->file_type));
4173 case WTAP_ERR_PACKET_TOO_LARGE:
4175 * This is a problem with the particular frame we're writing and
4176 * the file type and subtype we're writing; note that, and report
4177 * the frame number and file type/subtype.
4179 simple_error_message_box(
4180 "Frame %u is larger than Wireshark supports in a \"%s\" file.",
4181 fdata->num, wtap_file_type_subtype_string(args->file_type));
4185 display_basename = g_filename_display_basename(args->fname);
4186 simple_error_message_box(
4187 "An error occurred while writing to the file \"%s\": %s.",
4188 display_basename, wtap_strerror(err));
4189 g_free(display_basename);
4194 write_failure_alert_box(args->fname, err);
4199 g_free(hdr.opt_comment);
4204 * Can this capture file be written out in any format using Wiretap
4205 * rather than by copying the raw data?
4208 cf_can_write_with_wiretap(capture_file *cf)
4210 /* We don't care whether we support the comments in this file or not;
4211 if we can't, we'll offer the user the option of discarding the
4213 return wtap_dump_can_write(cf->linktypes, 0);
4217 * Should we let the user do a save?
4221 * the file has unsaved changes, and we can save it in some
4222 * format through Wiretap
4226 * the file is a temporary file and has no unsaved changes (so
4227 * that "saving" it just means copying it).
4229 * XXX - we shouldn't allow files to be edited if they can't be saved,
4230 * so cf->unsaved_changes should be true only if the file can be saved.
4232 * We don't care whether we support the comments in this file or not;
4233 * if we can't, we'll offer the user the option of discarding the
4237 cf_can_save(capture_file *cf)
4239 if (cf->unsaved_changes && wtap_dump_can_write(cf->linktypes, 0)) {
4240 /* Saved changes, and we can write it out with Wiretap. */
4244 if (cf->is_tempfile && !cf->unsaved_changes) {
4246 * Temporary file with no unsaved changes, so we can just do a
4252 /* Nothing to save. */
4257 * Should we let the user do a "save as"?
4261 * we can save it in some format through Wiretap
4265 * the file is a temporary file and has no unsaved changes (so
4266 * that "saving" it just means copying it).
4268 * XXX - we shouldn't allow files to be edited if they can't be saved,
4269 * so cf->unsaved_changes should be true only if the file can be saved.
4271 * We don't care whether we support the comments in this file or not;
4272 * if we can't, we'll offer the user the option of discarding the
4276 cf_can_save_as(capture_file *cf)
4278 if (wtap_dump_can_write(cf->linktypes, 0)) {
4279 /* We can write it out with Wiretap. */
4283 if (cf->is_tempfile && !cf->unsaved_changes) {
4285 * Temporary file with no unsaved changes, so we can just do a
4291 /* Nothing to save. */
4296 * Does this file have unsaved data?
4299 cf_has_unsaved_data(capture_file *cf)
4302 * If this is a temporary file, or a file with unsaved changes, it
4305 return cf->is_tempfile || cf->unsaved_changes;
4309 * Quick scan to find packet offsets.
4311 static cf_read_status_t
4312 rescan_file(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
4314 const struct wtap_pkthdr *phdr;
4319 progdlg_t *progbar = NULL;
4323 GTimeVal start_time;
4324 gchar status_str[100];
4325 gint64 progbar_nextstep;
4326 gint64 progbar_quantum;
4331 int displayed_once = 0;
4334 /* Close the old handle. */
4335 wtap_close(cf->wth);
4337 /* Open the new file. */
4338 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, err, &err_info, TRUE);
4339 if (cf->wth == NULL) {
4340 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
4341 return CF_READ_ERROR;
4344 /* We're scanning a file whose contents should be the same as what
4345 we had before, so we don't discard dissection state etc.. */
4348 /* Set the file name because we need it to set the follow stream filter.
4349 XXX - is that still true? We need it for other reasons, though,
4351 cf->filename = g_strdup(fname);
4353 /* Indicate whether it's a permanent or temporary file. */
4354 cf->is_tempfile = is_tempfile;
4356 /* No user changes yet. */
4357 cf->unsaved_changes = FALSE;
4359 cf->cd_t = wtap_file_type_subtype(cf->wth);
4360 cf->linktypes = g_array_sized_new(FALSE, FALSE, (guint) sizeof(int), 1);
4362 cf->snap = wtap_snapshot_length(cf->wth);
4363 if (cf->snap == 0) {
4364 /* Snapshot length not known. */
4365 cf->has_snap = FALSE;
4366 cf->snap = WTAP_MAX_PACKET_SIZE;
4368 cf->has_snap = TRUE;
4370 name_ptr = g_filename_display_basename(cf->filename);
4372 cf_callback_invoke(cf_cb_file_rescan_started, cf);
4374 /* Record whether the file is compressed.
4375 XXX - do we know this at open time? */
4376 cf->iscompressed = wtap_iscompressed(cf->wth);
4378 /* Find the size of the file. */
4379 size = wtap_file_size(cf->wth, NULL);
4381 /* Update the progress bar when it gets to this value. */
4382 progbar_nextstep = 0;
4383 /* When we reach the value that triggers a progress bar update,
4384 bump that value by this amount. */
4386 progbar_quantum = size/N_PROGBAR_UPDATES;
4387 if (progbar_quantum < MIN_QUANTUM)
4388 progbar_quantum = MIN_QUANTUM;
4390 progbar_quantum = 0;
4393 g_get_current_time(&start_time);
4396 phdr = wtap_phdr(cf->wth);
4397 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
4399 fdata = frame_data_sequence_find(cf->frames, framenum);
4400 fdata->file_off = data_offset;
4403 file_pos = wtap_read_so_far(cf->wth);
4405 /* Create the progress bar if necessary.
4406 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
4408 if ((progbar == NULL) && !(count % MIN_NUMBER_OF_PACKET)) {
4409 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4410 progbar = delayed_create_progress_dlg(cf->window, "Rescanning", name_ptr,
4411 TRUE, &stop_flag, &start_time, progbar_val);
4414 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
4415 when we update it, we have to run the GTK+ main loop to get it
4416 to repaint what's pending, and doing so may involve an "ioctl()"
4417 to see if there's any pending input from an X server, and doing
4418 that for every packet can be costly, especially on a big file. */
4419 if (file_pos >= progbar_nextstep) {
4420 if (progbar != NULL) {
4421 progbar_val = calc_progbar_val(cf, size, file_pos, status_str, sizeof(status_str));
4422 /* update the packet bar content on the first run or frequently on very large files */
4424 if (progbar_quantum > 500000 || displayed_once == 0) {
4425 if ((auto_scroll_live || displayed_once == 0 || cf->displayed_count < 1000) && cf->count != 0) {
4427 packets_bar_update();
4430 #endif /* HAVE_LIBPCAP */
4431 update_progress_dlg(progbar, progbar_val, status_str);
4433 progbar_nextstep += progbar_quantum;
4438 /* Well, the user decided to abort the rescan. Sadly, as this
4439 isn't a reread, recovering is difficult, so we'll just
4440 close the current capture. */
4444 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4445 it's not already there.
4446 XXX - yes, this is O(N), so if every packet had a different
4447 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4448 there are probably going to be a small number of encapsulation types
4450 cf_add_encapsulation_type(cf, phdr->pkt_encap);
4453 /* Free the display name */
4456 /* We're done reading the file; destroy the progress bar if it was created. */
4457 if (progbar != NULL)
4458 destroy_progress_dlg(progbar);
4460 /* We're done reading sequentially through the file. */
4461 cf->state = FILE_READ_DONE;
4463 /* Close the sequential I/O side, to free up memory it requires. */
4464 wtap_sequential_close(cf->wth);
4466 /* compute the time it took to load the file */
4467 compute_elapsed(cf, &start_time);
4469 /* Set the file encapsulation type now; we don't know what it is until
4470 we've looked at all the packets, as we don't know until then whether
4471 there's more than one type (and thus whether it's
4472 WTAP_ENCAP_PER_PACKET). */
4473 cf->lnk_t = wtap_file_encap(cf->wth);
4475 cf_callback_invoke(cf_cb_file_rescan_finished, cf);
4478 /* Our caller will give up at this point. */
4479 return CF_READ_ABORTED;
4483 /* Put up a message box noting that the read failed somewhere along
4484 the line. Don't throw out the stuff we managed to read, though,
4488 case WTAP_ERR_UNSUPPORTED:
4489 simple_error_message_box(
4490 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4495 case WTAP_ERR_UNSUPPORTED_ENCAP:
4496 simple_error_message_box(
4497 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
4502 case WTAP_ERR_CANT_READ:
4503 simple_error_message_box(
4504 "An attempt to read from the capture file failed for"
4505 " some unknown reason.");
4508 case WTAP_ERR_SHORT_READ:
4509 simple_error_message_box(
4510 "The capture file appears to have been cut short"
4511 " in the middle of a packet.");
4514 case WTAP_ERR_BAD_FILE:
4515 simple_error_message_box(
4516 "The capture file appears to be damaged or corrupt.\n(%s)",
4521 case WTAP_ERR_DECOMPRESS:
4522 simple_error_message_box(
4523 "The compressed capture file appears to be damaged or corrupt.\n"
4529 simple_error_message_box(
4530 "An error occurred while reading the"
4531 " capture file: %s.", wtap_strerror(*err));
4534 return CF_READ_ERROR;
4540 cf_save_packets(capture_file *cf, const char *fname, guint save_format,
4541 gboolean compressed, gboolean discard_comments,
4542 gboolean dont_reopen)
4545 gchar *fname_new = NULL;
4548 addrinfo_lists_t *addr_lists;
4552 gchar *display_basename;
4559 save_callback_args_t callback_args;
4561 cf_callback_invoke(cf_cb_file_save_started, (gpointer)fname);
4563 addr_lists = get_addrinfo_list();
4565 if (save_format == cf->cd_t && compressed == cf->iscompressed
4566 && !discard_comments && !cf->unsaved_changes
4567 && !(addr_lists && wtap_dump_has_name_resolution(save_format))) {
4568 /* We're saving in the format it's already in, and we're
4569 not discarding comments, and there are no changes we have
4570 in memory that aren't saved to the file, and we have no name
4571 resolution blocks to write, so we can just move or copy the raw data. */
4573 if (cf->is_tempfile) {
4574 /* The file being saved is a temporary file from a live
4575 capture, so it doesn't need to stay around under that name;
4576 first, try renaming the capture buffer file to the new name.
4577 This acts as a "safe save", in that, if the file already
4578 exists, the existing file will be removed only if the rename
4581 Sadly, on Windows, as we have the current capture file
4582 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4583 (to cause the rename to remove an existing target), as
4584 done by ws_stdio_rename() (ws_rename() is #defined to
4585 be ws_stdio_rename() on Windows) will fail.
4587 According to the MSDN documentation for CreateFile(), if,
4588 when we open a capture file, we were to directly do a CreateFile(),
4589 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4590 convert it to a file descriptor with _open_osfhandle(),
4591 that would allow the file to be renamed out from under us.
4593 However, that doesn't work in practice. Perhaps the problem
4594 is that the process doing the rename is the process that
4595 has the file open. */
4597 if (ws_rename(cf->filename, fname) == 0) {
4598 /* That succeeded - there's no need to copy the source file. */
4599 how_to_save = SAVE_WITH_MOVE;
4601 if (errno == EXDEV) {
4602 /* They're on different file systems, so we have to copy the
4604 how_to_save = SAVE_WITH_COPY;
4606 /* The rename failed, but not because they're on different
4607 file systems - put up an error message. (Or should we
4608 just punt and try to copy? The only reason why I'd
4609 expect the rename to fail and the copy to succeed would
4610 be if we didn't have permission to remove the file from
4611 the temporary directory, and that might be fixable - but
4612 is it worth requiring the user to go off and fix it?) */
4613 cf_rename_failure_alert_box(fname, errno);
4618 how_to_save = SAVE_WITH_COPY;
4621 /* It's a permanent file, so we should copy it, and not remove the
4623 how_to_save = SAVE_WITH_COPY;
4626 if (how_to_save == SAVE_WITH_COPY) {
4627 /* Copy the file, if we haven't moved it. If we're overwriting
4628 an existing file, we do it with a "safe save", by writing
4629 to a new file and, if the write succeeds, renaming the
4630 new file on top of the old file. */
4631 if (file_exists(fname)) {
4632 fname_new = g_strdup_printf("%s~", fname);
4633 if (!copy_file_binary_mode(cf->filename, fname_new))
4636 if (!copy_file_binary_mode(cf->filename, fname))
4641 /* Either we're saving in a different format or we're saving changes,
4642 such as added, modified, or removed comments, that haven't yet
4643 been written to the underlying file; we can't do that by copying
4644 or moving the capture file, we have to do it by writing the packets
4647 wtapng_section_t *shb_hdr = NULL;
4648 wtapng_iface_descriptions_t *idb_inf = NULL;
4651 shb_hdr = wtap_file_get_shb_info(cf->wth);
4652 idb_inf = wtap_file_get_idb_info(cf->wth);
4654 /* Determine what file encapsulation type we should use. */
4655 encap = wtap_dump_file_encap_type(cf->linktypes);
4657 if (file_exists(fname)) {
4658 /* We're overwriting an existing file; write out to a new file,
4659 and, if that succeeds, rename the new file on top of the
4660 old file. That makes this a "safe save", so that we don't
4661 lose the old file if we have a problem writing out the new
4662 file. (If the existing file is the current capture file,
4663 we *HAVE* to do that, otherwise we're overwriting the file
4664 from which we're reading the packets that we're writing!) */
4665 fname_new = g_strdup_printf("%s~", fname);
4666 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4667 compressed, shb_hdr, idb_inf, &err);
4669 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4670 compressed, shb_hdr, idb_inf, &err);
4676 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4680 /* Add address resolution */
4681 wtap_dump_set_addrinfo_list(pdh, addr_lists);
4683 /* Iterate through the list of packets, processing all the packets. */
4684 callback_args.pdh = pdh;
4685 callback_args.fname = fname;
4686 callback_args.file_type = save_format;
4687 switch (process_specified_packets(cf, NULL, "Saving", "packets",
4688 TRUE, save_packet, &callback_args)) {
4691 /* Completed successfully. */
4695 /* The user decided to abort the saving.
4696 If we're writing to a temporary file, remove it.
4697 XXX - should we do so even if we're not writing to a
4699 wtap_dump_close(pdh, &err);
4700 if (fname_new != NULL)
4701 ws_unlink(fname_new);
4702 cf_callback_invoke(cf_cb_file_save_stopped, NULL);
4703 return CF_WRITE_ABORTED;
4706 /* Error while saving.
4707 If we're writing to a temporary file, remove it. */
4708 if (fname_new != NULL)
4709 ws_unlink(fname_new);
4710 wtap_dump_close(pdh, &err);
4714 if (!wtap_dump_close(pdh, &err)) {
4715 cf_close_failure_alert_box(fname, err);
4719 how_to_save = SAVE_WITH_WTAP;
4722 if (fname_new != NULL) {
4723 /* We wrote out to fname_new, and should rename it on top of
4724 fname. fname_new is now closed, so that should be possible even
4725 on Windows. However, on Windows, we first need to close whatever
4726 file descriptors we have open for fname. */
4728 wtap_fdclose(cf->wth);
4730 /* Now do the rename. */
4731 if (ws_rename(fname_new, fname) == -1) {
4732 /* Well, the rename failed. */
4733 cf_rename_failure_alert_box(fname, errno);
4735 /* Attempt to reopen the random file descriptor using the
4736 current file's filename. (At this point, the sequential
4737 file descriptor is closed.) */
4738 if (!wtap_fdreopen(cf->wth, cf->filename, &err)) {
4739 /* Oh, well, we're screwed. */
4740 display_basename = g_filename_display_basename(cf->filename);
4741 simple_error_message_box(
4742 file_open_error_message(err, FALSE), display_basename);
4743 g_free(display_basename);
4750 cf_callback_invoke(cf_cb_file_save_finished, NULL);
4751 cf->unsaved_changes = FALSE;
4754 switch (how_to_save) {
4756 case SAVE_WITH_MOVE:
4757 /* We just moved the file, so the wtap structure refers to the
4758 new file, and all the information other than the filename
4759 and the "is temporary" status applies to the new file; just
4761 g_free(cf->filename);
4762 cf->filename = g_strdup(fname);
4763 cf->is_tempfile = FALSE;
4764 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4767 case SAVE_WITH_COPY:
4768 /* We just copied the file, s all the information other than
4769 the wtap structure, the filename, and the "is temporary"
4770 status applies to the new file; just update that. */
4771 wtap_close(cf->wth);
4772 cf->wth = wtap_open_offline(fname, WTAP_TYPE_AUTO, &err, &err_info, TRUE);
4773 if (cf->wth == NULL) {
4774 cf_open_failure_alert_box(fname, err, err_info, FALSE, 0);
4777 g_free(cf->filename);
4778 cf->filename = g_strdup(fname);
4779 cf->is_tempfile = FALSE;
4781 cf_callback_invoke(cf_cb_file_fast_save_finished, cf);
4784 case SAVE_WITH_WTAP:
4785 /* Open and read the file we saved to.
4787 XXX - this is somewhat of a waste; we already have the
4788 packets, all this gets us is updated file type information
4789 (which we could just stuff into "cf"), and having the new
4790 file be the one we have opened and from which we're reading
4791 the data, and it means we have to spend time opening and
4792 reading the file, which could be a significant amount of
4793 time if the file is large.
4795 If the capture-file-writing code were to return the
4796 seek offset of each packet it writes, we could save that
4797 in the frame_data structure for the frame, and just open
4798 the file without reading it again...
4800 ...as long as, for gzipped files, the process of writing
4801 out the file *also* generates the information needed to
4802 support fast random access to the compressed file. */
4803 if (rescan_file(cf, fname, FALSE, &err) != CF_READ_OK) {
4804 /* The rescan failed; just close the file. Either
4805 a dialog was popped up for the failure, so the
4806 user knows what happened, or they stopped the
4807 rescan, in which case they know what happened. */
4813 /* If we were told to discard the comments, do so. */
4814 if (discard_comments) {
4815 /* Remove SHB comment, if any. */
4816 wtap_write_shb_comment(cf->wth, NULL);
4818 /* remove all user comments */
4819 for (framenum = 1; framenum <= cf->count; framenum++) {
4820 fdata = frame_data_sequence_find(cf->frames, framenum);
4822 fdata->flags.has_phdr_comment = FALSE;
4823 fdata->flags.has_user_comment = FALSE;
4826 if (cf->frames_user_comments) {
4827 g_tree_destroy(cf->frames_user_comments);
4828 cf->frames_user_comments = NULL;
4831 cf->packet_comment_count = 0;
4837 if (fname_new != NULL) {
4838 /* We were trying to write to a temporary file; get rid of it if it
4839 exists. (We don't care whether this fails, as, if it fails,
4840 there's not much we can do about it. I guess if it failed for
4841 a reason other than "it doesn't exist", we could report an
4842 error, so the user knows there's a junk file that they might
4843 want to clean up.) */
4844 ws_unlink(fname_new);
4847 cf_callback_invoke(cf_cb_file_save_failed, NULL);
4848 return CF_WRITE_ERROR;
4852 cf_export_specified_packets(capture_file *cf, const char *fname,
4853 packet_range_t *range, guint save_format,
4854 gboolean compressed)
4856 gchar *fname_new = NULL;
4859 save_callback_args_t callback_args;
4860 wtapng_section_t *shb_hdr;
4861 wtapng_iface_descriptions_t *idb_inf;
4864 cf_callback_invoke(cf_cb_file_export_specified_packets_started, (gpointer)fname);
4866 packet_range_process_init(range);
4868 /* We're writing out specified packets from the specified capture
4869 file to another file. Even if all captured packets are to be
4870 written, don't special-case the operation - read each packet
4871 and then write it out if it's one of the specified ones. */
4873 shb_hdr = wtap_file_get_shb_info(cf->wth);
4874 idb_inf = wtap_file_get_idb_info(cf->wth);
4876 /* Determine what file encapsulation type we should use. */
4877 encap = wtap_dump_file_encap_type(cf->linktypes);
4879 if (file_exists(fname)) {
4880 /* We're overwriting an existing file; write out to a new file,
4881 and, if that succeeds, rename the new file on top of the
4882 old file. That makes this a "safe save", so that we don't
4883 lose the old file if we have a problem writing out the new
4884 file. (If the existing file is the current capture file,
4885 we *HAVE* to do that, otherwise we're overwriting the file
4886 from which we're reading the packets that we're writing!) */
4887 fname_new = g_strdup_printf("%s~", fname);
4888 pdh = wtap_dump_open_ng(fname_new, save_format, encap, cf->snap,
4889 compressed, shb_hdr, idb_inf, &err);
4891 pdh = wtap_dump_open_ng(fname, save_format, encap, cf->snap,
4892 compressed, shb_hdr, idb_inf, &err);
4898 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
4902 /* Add address resolution */
4903 wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list());
4905 /* Iterate through the list of packets, processing the packets we were
4908 XXX - we've already called "packet_range_process_init(range)", but
4909 "process_specified_packets()" will do it again. Fortunately,
4910 that's harmless in this case, as we haven't done anything to
4911 "range" since we initialized it. */
4912 callback_args.pdh = pdh;
4913 callback_args.fname = fname;
4914 callback_args.file_type = save_format;
4915 switch (process_specified_packets(cf, range, "Writing", "specified packets",
4916 TRUE, save_packet, &callback_args)) {
4919 /* Completed successfully. */
4923 /* The user decided to abort the saving.
4924 If we're writing to a temporary file, remove it.
4925 XXX - should we do so even if we're not writing to a
4927 wtap_dump_close(pdh, &err);
4928 if (fname_new != NULL)
4929 ws_unlink(fname_new);
4930 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped, NULL);
4931 return CF_WRITE_ABORTED;
4935 /* Error while saving.
4936 If we're writing to a temporary file, remove it. */
4937 if (fname_new != NULL)
4938 ws_unlink(fname_new);
4939 wtap_dump_close(pdh, &err);
4943 if (!wtap_dump_close(pdh, &err)) {
4944 cf_close_failure_alert_box(fname, err);
4948 if (fname_new != NULL) {
4949 /* We wrote out to fname_new, and should rename it on top of
4950 fname; fname is now closed, so that should be possible even
4951 on Windows. Do the rename. */
4952 if (ws_rename(fname_new, fname) == -1) {
4953 /* Well, the rename failed. */
4954 cf_rename_failure_alert_box(fname, errno);
4959 cf_callback_invoke(cf_cb_file_export_specified_packets_finished, NULL);
4963 if (fname_new != NULL) {
4964 /* We were trying to write to a temporary file; get rid of it if it
4965 exists. (We don't care whether this fails, as, if it fails,
4966 there's not much we can do about it. I guess if it failed for
4967 a reason other than "it doesn't exist", we could report an
4968 error, so the user knows there's a junk file that they might
4969 want to clean up.) */
4970 ws_unlink(fname_new);
4973 cf_callback_invoke(cf_cb_file_export_specified_packets_failed, NULL);
4974 return CF_WRITE_ERROR;
4978 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
4979 gboolean for_writing, int file_type)
4981 gchar *display_basename;
4984 /* Wiretap error. */
4985 display_basename = g_filename_display_basename(filename);
4988 case WTAP_ERR_NOT_REGULAR_FILE:
4989 simple_error_message_box(
4990 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4994 case WTAP_ERR_RANDOM_OPEN_PIPE:
4995 /* Seen only when opening a capture file for reading. */
4996 simple_error_message_box(
4997 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
4998 "To capture from a pipe or FIFO use wireshark -i -",
5002 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
5003 /* Seen only when opening a capture file for reading. */
5004 simple_error_message_box(
5005 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
5009 case WTAP_ERR_UNSUPPORTED:
5010 /* Seen only when opening a capture file for reading. */
5011 simple_error_message_box(
5012 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
5014 display_basename, err_info);
5018 case WTAP_ERR_CANT_WRITE_TO_PIPE:
5019 /* Seen only when opening a capture file for writing. */
5020 simple_error_message_box(
5021 "The file \"%s\" is a pipe, and %s capture files can't be "
5022 "written to a pipe.",
5023 display_basename, wtap_file_type_subtype_string(file_type));
5026 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
5027 /* Seen only when opening a capture file for writing. */
5028 simple_error_message_box(
5029 "Wireshark doesn't support writing capture files in that format.");
5032 case WTAP_ERR_UNSUPPORTED_ENCAP:
5034 simple_error_message_box("Wireshark can't save this capture in that format.");
5036 simple_error_message_box(
5037 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
5039 display_basename, err_info);
5044 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
5046 simple_error_message_box(
5047 "Wireshark can't save this capture in that format.");
5049 simple_error_message_box(
5050 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
5055 case WTAP_ERR_BAD_FILE:
5056 /* Seen only when opening a capture file for reading. */
5057 simple_error_message_box(
5058 "The file \"%s\" appears to be damaged or corrupt.\n"
5060 display_basename, err_info);
5064 case WTAP_ERR_CANT_OPEN:
5066 simple_error_message_box(
5067 "The file \"%s\" could not be created for some unknown reason.",
5070 simple_error_message_box(
5071 "The file \"%s\" could not be opened for some unknown reason.",
5076 case WTAP_ERR_SHORT_READ:
5077 simple_error_message_box(
5078 "The file \"%s\" appears to have been cut short"
5079 " in the middle of a packet or other data.",
5083 case WTAP_ERR_SHORT_WRITE:
5084 simple_error_message_box(
5085 "A full header couldn't be written to the file \"%s\".",
5089 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
5090 simple_error_message_box(
5091 "This file type cannot be written as a compressed file.");
5094 case WTAP_ERR_DECOMPRESS:
5095 simple_error_message_box(
5096 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
5097 "(%s)", display_basename, err_info);
5102 simple_error_message_box(
5103 "The file \"%s\" could not be %s: %s.",
5105 for_writing ? "created" : "opened",
5106 wtap_strerror(err));
5109 g_free(display_basename);
5112 open_failure_alert_box(filename, err, for_writing);
5117 * XXX - whether we mention the source pathname, the target pathname,
5118 * or both depends on the error and on what we find if we look for
5119 * one or both of them.
5122 cf_rename_failure_alert_box(const char *filename, int err)
5124 gchar *display_basename;
5126 display_basename = g_filename_display_basename(filename);
5130 /* XXX - should check whether the source exists and, if not,
5131 report it as the problem and, if so, report the destination
5133 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
5138 /* XXX - if we're doing a rename after a safe save, we should
5139 probably say something else. */
5140 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
5145 /* XXX - this should probably mention both the source and destination
5147 simple_error_message_box("The file \"%s\" could not be moved: %s.",
5148 display_basename, wtap_strerror(err));
5151 g_free(display_basename);
5154 /* Check for write errors - if the file is being written to an NFS server,
5155 a write error may not show up until the file is closed, as NFS clients
5156 might not send writes to the server until the "write()" call finishes,
5157 so that the write may fail on the server but the "write()" may succeed. */
5159 cf_close_failure_alert_box(const char *filename, int err)
5161 gchar *display_basename;
5164 /* Wiretap error. */
5165 display_basename = g_filename_display_basename(filename);
5168 case WTAP_ERR_CANT_CLOSE:
5169 simple_error_message_box(
5170 "The file \"%s\" couldn't be closed for some unknown reason.",
5174 case WTAP_ERR_SHORT_WRITE:
5175 simple_error_message_box(
5176 "Not all the packets could be written to the file \"%s\".",
5181 simple_error_message_box(
5182 "An error occurred while closing the file \"%s\": %s.",
5183 display_basename, wtap_strerror(err));
5186 g_free(display_basename);
5189 We assume that a close error from the OS is really a write error. */
5190 write_failure_alert_box(filename, err);
5194 /* Reload the current capture file. */
5196 cf_reload(capture_file *cf) {
5198 gboolean is_tempfile;
5201 /* If the file could be opened, "cf_open()" calls "cf_close()"
5202 to get rid of state for the old capture file before filling in state
5203 for the new capture file. "cf_close()" will remove the file if
5204 it's a temporary file; we don't want that to happen (for one thing,
5205 it'd prevent subsequent reopens from working). Remember whether it's
5206 a temporary file, mark it as not being a temporary file, and then
5207 reopen it as the type of file it was.
5209 Also, "cf_close()" will free "cf->filename", so we must make
5210 a copy of it first. */
5211 filename = g_strdup(cf->filename);
5212 is_tempfile = cf->is_tempfile;
5213 cf->is_tempfile = FALSE;
5214 if (cf_open(cf, filename, WTAP_TYPE_AUTO, is_tempfile, &err) == CF_OK) {
5215 switch (cf_read(cf, TRUE)) {
5219 /* Just because we got an error, that doesn't mean we were unable
5220 to read any of the file; we handle what we could get from the
5224 case CF_READ_ABORTED:
5225 /* The user bailed out of re-reading the capture file; the
5226 capture file has been closed - just free the capture file name
5227 string and return (without changing the last containing
5233 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
5234 Instead, the file was left open, so we should restore "cf->is_tempfile"
5237 XXX - change the menu? Presumably "cf_open()" will do that;
5238 make sure it does! */
5239 cf->is_tempfile = is_tempfile;
5241 /* "cf_open()" made a copy of the file name we handed it, so
5242 we should free up our copy. */
5252 * indent-tabs-mode: nil
5255 * ex: set shiftwidth=2 tabstop=8 expandtab:
5256 * :indentSize=2:tabSize=8:noTabs=true: