6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
44 #include <wsutil/tempfile.h>
45 #include <wsutil/file_util.h>
47 #include <wiretap/merge.h>
49 #include <epan/exceptions.h>
50 #include <epan/epan-int.h>
51 #include <epan/epan.h>
52 #include <epan/column.h>
53 #include <epan/packet.h>
54 #include <epan/column-utils.h>
55 #include <epan/expert.h>
56 #include <epan/filesystem.h>
57 #include <epan/prefs.h>
58 #include <epan/dfilter/dfilter.h>
59 #include <epan/epan_dissect.h>
61 #include <epan/dissectors/packet-data.h>
62 #include <epan/dissectors/packet-ber.h>
63 #include <epan/timestamp.h>
64 #include <epan/dfilter/dfilter-macro.h>
65 #include <epan/strutil.h>
66 #include <epan/addr_resolv.h>
69 #include "color_filters.h"
73 #include "frame_tvbuff.h"
75 #include "ui/alert_box.h"
76 #include "ui/simple_dialog.h"
77 #include "ui/main_statusbar.h"
78 #include "ui/progress_dlg.h"
79 #include "ui/ui_util.h"
81 #include "version_info.h"
83 /* Needed for addrinfo */
84 #ifdef HAVE_SYS_TYPES_H
85 # include <sys/types.h>
88 #ifdef HAVE_SYS_SOCKET_H
89 #include <sys/socket.h>
92 #ifdef HAVE_NETINET_IN_H
93 # include <netinet/in.h>
100 #ifdef HAVE_WINSOCK2_H
101 # include <winsock2.h>
104 #if defined(_WIN32) && defined(INET6)
105 # include <ws2tcpip.h>
109 gboolean auto_scroll_live
;
112 static void cf_reset_state(capture_file
*cf
);
114 static int read_packet(capture_file
*cf
, dfilter_t
*dfcode
, epan_dissect_t
*edt
,
115 column_info
*cinfo
, gint64 offset
);
117 static void rescan_packets(capture_file
*cf
, const char *action
, const char *action_item
, gboolean redissect
);
124 static match_result
match_protocol_tree(capture_file
*cf
, frame_data
*fdata
,
126 static void match_subtree_text(proto_node
*node
, gpointer data
);
127 static match_result
match_summary_line(capture_file
*cf
, frame_data
*fdata
,
129 static match_result
match_narrow_and_wide(capture_file
*cf
, frame_data
*fdata
,
131 static match_result
match_narrow(capture_file
*cf
, frame_data
*fdata
,
133 static match_result
match_wide(capture_file
*cf
, frame_data
*fdata
,
135 static match_result
match_binary(capture_file
*cf
, frame_data
*fdata
,
137 static match_result
match_dfilter(capture_file
*cf
, frame_data
*fdata
,
139 static match_result
match_marked(capture_file
*cf
, frame_data
*fdata
,
141 static match_result
match_time_reference(capture_file
*cf
, frame_data
*fdata
,
143 static gboolean
find_packet(capture_file
*cf
,
144 match_result (*match_function
)(capture_file
*, frame_data
*, void *),
145 void *criterion
, search_direction dir
);
147 static const char *cf_get_user_packet_comment(capture_file
*cf
, const frame_data
*fd
);
149 static void cf_open_failure_alert_box(const char *filename
, int err
,
150 gchar
*err_info
, gboolean for_writing
,
152 static void cf_rename_failure_alert_box(const char *filename
, int err
);
153 static void cf_close_failure_alert_box(const char *filename
, int err
);
154 static void ref_time_packets(capture_file
*cf
);
155 /* Update the progress bar this many times when reading a file. */
156 #define N_PROGBAR_UPDATES 100
157 /* We read around 200k/100ms don't update the progress bar more often than that */
158 #define MIN_QUANTUM 200000
159 #define MIN_NUMBER_OF_PACKET 1500
162 * We could probably use g_signal_...() instead of the callbacks below but that
163 * would require linking our CLI programs to libgobject and creating an object
164 * instance for the signals.
167 cf_callback_t cb_fct
;
169 } cf_callback_data_t
;
171 static GList
*cf_callbacks
= NULL
;
174 cf_callback_invoke(int event
, gpointer data
)
176 cf_callback_data_t
*cb
;
177 GList
*cb_item
= cf_callbacks
;
179 /* there should be at least one interested */
180 g_assert(cb_item
!= NULL
);
182 while (cb_item
!= NULL
) {
183 cb
= (cf_callback_data_t
*)cb_item
->data
;
184 cb
->cb_fct(event
, data
, cb
->user_data
);
185 cb_item
= g_list_next(cb_item
);
191 cf_callback_add(cf_callback_t func
, gpointer user_data
)
193 cf_callback_data_t
*cb
;
195 cb
= g_new(cf_callback_data_t
,1);
197 cb
->user_data
= user_data
;
199 cf_callbacks
= g_list_prepend(cf_callbacks
, cb
);
203 cf_callback_remove(cf_callback_t func
)
205 cf_callback_data_t
*cb
;
206 GList
*cb_item
= cf_callbacks
;
208 while (cb_item
!= NULL
) {
209 cb
= (cf_callback_data_t
*)cb_item
->data
;
210 if (cb
->cb_fct
== func
) {
211 cf_callbacks
= g_list_remove(cf_callbacks
, cb
);
215 cb_item
= g_list_next(cb_item
);
218 g_assert_not_reached();
222 cf_timestamp_auto_precision(capture_file
*cf
)
225 int prec
= timestamp_get_precision();
228 /* don't try to get the file's precision if none is opened */
229 if (cf
->state
== FILE_CLOSED
) {
233 /* if we are in auto mode, set precision of current file */
234 if (prec
== TS_PREC_AUTO
||
235 prec
== TS_PREC_AUTO_SEC
||
236 prec
== TS_PREC_AUTO_DSEC
||
237 prec
== TS_PREC_AUTO_CSEC
||
238 prec
== TS_PREC_AUTO_MSEC
||
239 prec
== TS_PREC_AUTO_USEC
||
240 prec
== TS_PREC_AUTO_NSEC
)
242 switch(wtap_file_tsprecision(cf
->wth
)) {
243 case(WTAP_FILE_TSPREC_SEC
):
244 timestamp_set_precision(TS_PREC_AUTO_SEC
);
246 case(WTAP_FILE_TSPREC_DSEC
):
247 timestamp_set_precision(TS_PREC_AUTO_DSEC
);
249 case(WTAP_FILE_TSPREC_CSEC
):
250 timestamp_set_precision(TS_PREC_AUTO_CSEC
);
252 case(WTAP_FILE_TSPREC_MSEC
):
253 timestamp_set_precision(TS_PREC_AUTO_MSEC
);
255 case(WTAP_FILE_TSPREC_USEC
):
256 timestamp_set_precision(TS_PREC_AUTO_USEC
);
258 case(WTAP_FILE_TSPREC_NSEC
):
259 timestamp_set_precision(TS_PREC_AUTO_NSEC
);
262 g_assert_not_reached();
265 /* Set the column widths of those columns that show the time in
266 "command-line-specified" format. */
267 for (i
= 0; i
< cf
->cinfo
.num_cols
; i
++) {
268 if (col_has_time_fmt(&cf
->cinfo
, i
)) {
269 packet_list_resize_column(i
);
275 cf_get_computed_elapsed(capture_file
*cf
)
277 return cf
->computed_elapsed
;
281 * GLIB_CHECK_VERSION(2,28,0) adds g_get_real_time which could minimize or
284 static void compute_elapsed(capture_file
*cf
, GTimeVal
*start_time
)
289 g_get_current_time(&time_now
);
291 delta_time
= (time_now
.tv_sec
- start_time
->tv_sec
) * 1e6
+
292 time_now
.tv_usec
- start_time
->tv_usec
;
294 cf
->computed_elapsed
= (gulong
) (delta_time
/ 1000); /* ms */
297 static const nstime_t
*
298 ws_get_frame_ts(void *data
, guint32 frame_num
)
300 capture_file
*cf
= (capture_file
*) data
;
302 if (cf
->prev_dis
&& cf
->prev_dis
->num
== frame_num
)
303 return &cf
->prev_dis
->abs_ts
;
305 if (cf
->prev_cap
&& cf
->prev_cap
->num
== frame_num
)
306 return &cf
->prev_cap
->abs_ts
;
309 frame_data
*fd
= frame_data_sequence_find(cf
->frames
, frame_num
);
311 return (fd
) ? &fd
->abs_ts
: NULL
;
318 ws_get_user_comment(void *data
, const frame_data
*fd
)
320 capture_file
*cf
= (capture_file
*) data
;
322 return cf_get_user_packet_comment(cf
, fd
);
326 ws_epan_new(capture_file
*cf
)
328 epan_t
*epan
= epan_new();
331 epan
->get_frame_ts
= ws_get_frame_ts
;
332 epan
->get_interface_name
= cap_file_get_interface_name
;
333 epan
->get_user_comment
= ws_get_user_comment
;
339 cf_open(capture_file
*cf
, const char *fname
, gboolean is_tempfile
, int *err
)
344 wth
= wtap_open_offline(fname
, err
, &err_info
, TRUE
);
348 /* The open succeeded. Close whatever capture file we had open,
349 and fill in the information for this file. */
352 /* XXX - we really want to initialize this after we've read all
353 the packets, so we know how much we'll ultimately need. */
354 buffer_init(&cf
->buf
, 1500);
356 /* Create new epan session for dissection.
357 * (The old one was freed in cf_close().)
359 cf
->epan
= ws_epan_new(cf
);
361 /* We're about to start reading the file. */
362 cf
->state
= FILE_READ_IN_PROGRESS
;
367 /* Set the file name because we need it to set the follow stream filter.
368 XXX - is that still true? We need it for other reasons, though,
370 cf
->filename
= g_strdup(fname
);
372 /* Indicate whether it's a permanent or temporary file. */
373 cf
->is_tempfile
= is_tempfile
;
375 /* No user changes yet. */
376 cf
->unsaved_changes
= FALSE
;
378 cf
->computed_elapsed
= 0;
380 cf
->cd_t
= wtap_file_type_subtype(cf
->wth
);
381 cf
->linktypes
= g_array_sized_new(FALSE
, FALSE
, (guint
) sizeof(int), 1);
383 cf
->packet_comment_count
= 0;
384 cf
->displayed_count
= 0;
385 cf
->marked_count
= 0;
386 cf
->ignored_count
= 0;
387 cf
->ref_time_count
= 0;
388 cf
->drops_known
= FALSE
;
390 cf
->snap
= wtap_snapshot_length(cf
->wth
);
392 /* Snapshot length not known. */
393 cf
->has_snap
= FALSE
;
394 cf
->snap
= WTAP_MAX_PACKET_SIZE
;
398 /* Allocate a frame_data_sequence for the frames in this file */
399 cf
->frames
= new_frame_data_sequence();
401 nstime_set_zero(&cf
->elapsed_time
);
407 /* Adjust timestamp precision if auto is selected, col width will be adjusted */
408 cf_timestamp_auto_precision(cf
);
410 packet_list_queue_draw();
411 cf_callback_invoke(cf_cb_file_opened
, cf
);
413 if (cf
->cd_t
== WTAP_FILE_TYPE_SUBTYPE_BER
) {
414 /* tell the BER dissector the file name */
415 ber_set_filename(cf
->filename
);
418 wtap_set_cb_new_ipv4(cf
->wth
, add_ipv4_name
);
419 wtap_set_cb_new_ipv6(cf
->wth
, (wtap_new_ipv6_callback_t
) add_ipv6_name
);
424 cf_open_failure_alert_box(fname
, *err
, err_info
, FALSE
, 0);
429 * Add an encapsulation type to cf->linktypes.
432 cf_add_encapsulation_type(capture_file
*cf
, int encap
)
436 for (i
= 0; i
< cf
->linktypes
->len
; i
++) {
437 if (g_array_index(cf
->linktypes
, gint
, i
) == encap
)
438 return; /* it's already there */
440 /* It's not already there - add it. */
441 g_array_append_val(cf
->linktypes
, encap
);
445 * Reset the state for the currently closed file, but don't do the
446 * UI callbacks; this is for use in "cf_open()", where we don't
447 * want the UI to go from "file open" to "file closed" back to
448 * "file open", we want it to go from "old file open" to "new file
449 * open and being read".
451 * XXX - currently, cf_open() calls cf_close(), rather than
455 cf_reset_state(capture_file
*cf
)
457 /* Die if we're in the middle of reading a file. */
458 g_assert(cf
->state
!= FILE_READ_IN_PROGRESS
);
464 /* We have no file open... */
465 if (cf
->filename
!= NULL
) {
466 /* If it's a temporary file, remove it. */
468 ws_unlink(cf
->filename
);
469 g_free(cf
->filename
);
472 /* ...which means we have no changes to that file to save. */
473 cf
->unsaved_changes
= FALSE
;
475 /* Free up the packet buffer. */
476 buffer_free(&cf
->buf
);
478 dfilter_free(cf
->rfcode
);
480 if (cf
->frames
!= NULL
) {
481 free_frame_data_sequence(cf
->frames
);
484 #ifdef WANT_PACKET_EDITOR
485 if (cf
->edited_frames
) {
486 g_tree_destroy(cf
->edited_frames
);
487 cf
->edited_frames
= NULL
;
490 if (cf
->frames_user_comments
) {
491 g_tree_destroy(cf
->frames_user_comments
);
492 cf
->frames_user_comments
= NULL
;
494 cf_unselect_packet(cf
); /* nothing to select */
495 cf
->first_displayed
= 0;
496 cf
->last_displayed
= 0;
498 /* No frames, no frame selected, no field in that frame selected. */
500 cf
->current_frame
= 0;
502 cf
->finfo_selected
= NULL
;
504 /* No frame link-layer types, either. */
505 g_array_free(cf
->linktypes
, TRUE
);
506 cf
->linktypes
= NULL
;
508 /* Clear the packet list. */
509 packet_list_freeze();
514 nstime_set_zero(&cf
->elapsed_time
);
516 reset_tap_listeners();
518 /* We have no file open. */
519 cf
->state
= FILE_CLOSED
;
522 /* Reset everything to a pristine state */
524 cf_close(capture_file
*cf
)
526 if (cf
->state
!= FILE_CLOSED
) {
527 cf_callback_invoke(cf_cb_file_closing
, cf
);
529 /* close things, if not already closed before */
530 color_filters_cleanup();
535 cf_callback_invoke(cf_cb_file_closed
, cf
);
540 calc_progbar_val(capture_file
*cf
, gint64 size
, gint64 file_pos
, gchar
*status_str
, gulong status_size
)
544 progbar_val
= (gfloat
) file_pos
/ (gfloat
) size
;
545 if (progbar_val
> 1.0) {
547 /* The file probably grew while we were reading it.
548 * Update file size, and try again.
550 size
= wtap_file_size(cf
->wth
, NULL
);
553 progbar_val
= (gfloat
) file_pos
/ (gfloat
) size
;
555 /* If it's still > 1, either "wtap_file_size()" failed (in which
556 * case there's not much we can do about it), or the file
557 * *shrank* (in which case there's not much we can do about
558 * it); just clip the progress value at 1.0.
560 if (progbar_val
> 1.0f
)
564 g_snprintf(status_str
, status_size
,
565 "%" G_GINT64_MODIFIER
"dKB of %" G_GINT64_MODIFIER
"dKB",
566 file_pos
/ 1024, size
/ 1024);
572 cf_read(capture_file
*cf
, gboolean reloading
)
577 progdlg_t
*progbar
= NULL
;
582 volatile gboolean create_proto_tree
;
586 /* Compile the current display filter.
587 * We assume this will not fail since cf->dfilter is only set in
588 * cf_filter IFF the filter was valid.
590 compiled
= dfilter_compile(cf
->dfilter
, &dfcode
);
591 g_assert(!cf
->dfilter
|| (compiled
&& dfcode
));
593 /* Get the union of the flags for all tap listeners. */
594 tap_flags
= union_of_tap_listener_flags();
596 (dfcode
!= NULL
|| have_filtering_tap_listeners() || (tap_flags
& TL_REQUIRES_PROTO_TREE
));
598 reset_tap_listeners();
600 name_ptr
= g_filename_display_basename(cf
->filename
);
603 cf_callback_invoke(cf_cb_file_reload_started
, cf
);
605 cf_callback_invoke(cf_cb_file_read_started
, cf
);
607 /* Record whether the file is compressed.
608 XXX - do we know this at open time? */
609 cf
->iscompressed
= wtap_iscompressed(cf
->wth
);
611 /* The packet list window will be empty until the file is completly loaded */
612 packet_list_freeze();
615 g_get_current_time(&start_time
);
617 epan_dissect_init(&edt
, cf
->epan
, create_proto_tree
, FALSE
);
621 int displayed_once
= 0;
629 gint64 progbar_quantum
;
630 gint64 progbar_nextstep
;
632 gchar status_str
[100];
636 cinfo
= (tap_flags
& TL_REQUIRES_COLUMNS
) ? &cf
->cinfo
: NULL
;
638 /* Find the size of the file. */
639 size
= wtap_file_size(cf
->wth
, NULL
);
641 /* Update the progress bar when it gets to this value. */
642 progbar_nextstep
= 0;
643 /* When we reach the value that triggers a progress bar update,
644 bump that value by this amount. */
646 progbar_quantum
= size
/N_PROGBAR_UPDATES
;
647 if (progbar_quantum
< MIN_QUANTUM
)
648 progbar_quantum
= MIN_QUANTUM
;
652 while ((wtap_read(cf
->wth
, &err
, &err_info
, &data_offset
))) {
655 file_pos
= wtap_read_so_far(cf
->wth
);
657 /* Create the progress bar if necessary.
658 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
660 if ((progbar
== NULL
) && !(count
% MIN_NUMBER_OF_PACKET
)) {
661 progbar_val
= calc_progbar_val(cf
, size
, file_pos
, status_str
, sizeof(status_str
));
663 progbar
= delayed_create_progress_dlg(cf
->window
, "Reloading", name_ptr
,
664 TRUE
, &stop_flag
, &start_time
, progbar_val
);
666 progbar
= delayed_create_progress_dlg(cf
->window
, "Loading", name_ptr
,
667 TRUE
, &stop_flag
, &start_time
, progbar_val
);
670 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
671 when we update it, we have to run the GTK+ main loop to get it
672 to repaint what's pending, and doing so may involve an "ioctl()"
673 to see if there's any pending input from an X server, and doing
674 that for every packet can be costly, especially on a big file. */
675 if (file_pos
>= progbar_nextstep
) {
676 if (progbar
!= NULL
) {
677 progbar_val
= calc_progbar_val(cf
, size
, file_pos
, status_str
, sizeof(status_str
));
678 /* update the packet bar content on the first run or frequently on very large files */
680 if (progbar_quantum
> 500000 || displayed_once
== 0) {
681 if ((auto_scroll_live
|| displayed_once
== 0 || cf
->displayed_count
< 1000) && cf
->count
!= 0) {
683 packets_bar_update();
686 #endif /* HAVE_LIBPCAP */
687 update_progress_dlg(progbar
, progbar_val
, status_str
);
689 progbar_nextstep
+= progbar_quantum
;
694 /* Well, the user decided to abort the read. He/She will be warned and
695 it might be enough for him/her to work with the already loaded
697 This is especially true for very large capture files, where you don't
698 want to wait loading the whole file (which may last minutes or even
699 hours even on fast machines) just to see that it was the wrong file. */
702 read_packet(cf
, dfcode
, &edt
, cinfo
, data_offset
);
705 CATCH(OutOfMemoryError
) {
706 simple_message_box(ESD_TYPE_ERROR
, NULL
,
707 "Some infos / workarounds can be found at:\n"
708 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
709 "Sorry, but Wireshark has run out of memory and has to terminate now!");
711 /* Could we close the current capture and free up memory from that? */
713 /* we have to terminate, as we cannot recover from the memory error */
719 /* Free the display name */
722 /* Cleanup and release all dfilter resources */
723 if (dfcode
!= NULL
) {
724 dfilter_free(dfcode
);
727 epan_dissect_cleanup(&edt
);
729 /* We're done reading the file; destroy the progress bar if it was created. */
731 destroy_progress_dlg(progbar
);
733 /* We're done reading sequentially through the file. */
734 cf
->state
= FILE_READ_DONE
;
736 /* Close the sequential I/O side, to free up memory it requires. */
737 wtap_sequential_close(cf
->wth
);
739 /* Allow the protocol dissectors to free up memory that they
740 * don't need after the sequential run-through of the packets. */
741 postseq_cleanup_all_protocols();
743 /* compute the time it took to load the file */
744 compute_elapsed(cf
, &start_time
);
746 /* Set the file encapsulation type now; we don't know what it is until
747 we've looked at all the packets, as we don't know until then whether
748 there's more than one type (and thus whether it's
749 WTAP_ENCAP_PER_PACKET). */
750 cf
->lnk_t
= wtap_file_encap(cf
->wth
);
752 cf
->current_frame
= frame_data_sequence_find(cf
->frames
, cf
->first_displayed
);
757 cf_callback_invoke(cf_cb_file_reload_finished
, cf
);
759 cf_callback_invoke(cf_cb_file_read_finished
, cf
);
761 /* If we have any displayed packets to select, select the first of those
762 packets by making the first row the selected row. */
763 if (cf
->first_displayed
!= 0) {
764 packet_list_select_first_row();
768 simple_message_box(ESD_TYPE_WARN
, NULL
,
769 "The remaining packets in the file were discarded.\n"
771 "As a lot of packets from the original file will be missing,\n"
772 "remember to be careful when saving the current content to a file.\n",
773 "File loading was cancelled!");
774 return CF_READ_ERROR
;
778 /* Put up a message box noting that the read failed somewhere along
779 the line. Don't throw out the stuff we managed to read, though,
783 case WTAP_ERR_UNSUPPORTED
:
784 simple_error_message_box(
785 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
790 case WTAP_ERR_UNSUPPORTED_ENCAP
:
791 simple_error_message_box(
792 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
797 case WTAP_ERR_CANT_READ
:
798 simple_error_message_box(
799 "An attempt to read from the capture file failed for"
800 " some unknown reason.");
803 case WTAP_ERR_SHORT_READ
:
804 simple_error_message_box(
805 "The capture file appears to have been cut short"
806 " in the middle of a packet.");
809 case WTAP_ERR_BAD_FILE
:
810 simple_error_message_box(
811 "The capture file appears to be damaged or corrupt.\n(%s)",
816 case WTAP_ERR_DECOMPRESS
:
817 simple_error_message_box(
818 "The compressed capture file appears to be damaged or corrupt.\n"
824 simple_error_message_box(
825 "An error occurred while reading the"
826 " capture file: %s.", wtap_strerror(err
));
829 return CF_READ_ERROR
;
836 cf_continue_tail(capture_file
*cf
, volatile int to_read
, int *err
)
839 int newly_displayed_packets
= 0;
842 gboolean create_proto_tree
;
846 /* Compile the current display filter.
847 * We assume this will not fail since cf->dfilter is only set in
848 * cf_filter IFF the filter was valid.
850 compiled
= dfilter_compile(cf
->dfilter
, &dfcode
);
851 g_assert(!cf
->dfilter
|| (compiled
&& dfcode
));
853 /* Get the union of the flags for all tap listeners. */
854 tap_flags
= union_of_tap_listener_flags();
856 (dfcode
!= NULL
|| have_filtering_tap_listeners() || (tap_flags
& TL_REQUIRES_PROTO_TREE
));
860 packet_list_check_end();
861 /* Don't freeze/thaw the list when doing live capture */
862 /*packet_list_freeze();*/
864 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
866 epan_dissect_init(&edt
, cf
->epan
, create_proto_tree
, FALSE
);
869 gint64 data_offset
= 0;
872 cinfo
= (tap_flags
& TL_REQUIRES_COLUMNS
) ? &cf
->cinfo
: NULL
;
874 while (to_read
!= 0) {
875 wtap_cleareof(cf
->wth
);
876 if (!wtap_read(cf
->wth
, err
, &err_info
, &data_offset
)) {
879 if (cf
->state
== FILE_READ_ABORTED
) {
880 /* Well, the user decided to exit Wireshark. Break out of the
881 loop, and let the code below (which is called even if there
882 aren't any packets left to read) exit. */
885 if (read_packet(cf
, dfcode
, &edt
, (column_info
*) cinfo
, data_offset
) != -1) {
886 newly_displayed_packets
++;
891 CATCH(OutOfMemoryError
) {
892 simple_message_box(ESD_TYPE_ERROR
, NULL
,
893 "Some infos / workarounds can be found at:\n"
894 "http://wiki.wireshark.org/KnownBugs/OutOfMemory",
895 "Sorry, but Wireshark has run out of memory and has to terminate now!");
897 /* Could we close the current capture and free up memory from that? */
898 return CF_READ_ABORTED
;
900 /* we have to terminate, as we cannot recover from the memory error */
906 /* Update the file encapsulation; it might have changed based on the
907 packets we've read. */
908 cf
->lnk_t
= wtap_file_encap(cf
->wth
);
910 /* Cleanup and release all dfilter resources */
911 if (dfcode
!= NULL
) {
912 dfilter_free(dfcode
);
915 epan_dissect_cleanup(&edt
);
917 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
918 cf->count, cf->state, *err);*/
920 /* Don't freeze/thaw the list when doing live capture */
921 /*packet_list_thaw();*/
922 /* With the new packet list the first packet
923 * isn't automatically selected.
925 if (!cf
->current_frame
)
926 packet_list_select_first_row();
928 /* moving to the end of the packet list - if the user requested so and
929 we have some new packets. */
930 if (newly_displayed_packets
&& auto_scroll_live
&& cf
->count
!= 0)
931 packet_list_moveto_end();
933 if (cf
->state
== FILE_READ_ABORTED
) {
934 /* Well, the user decided to exit Wireshark. Return CF_READ_ABORTED
935 so that our caller can kill off the capture child process;
936 this will cause an EOF on the pipe from the child, so
937 "cf_finish_tail()" will be called, and it will clean up
939 return CF_READ_ABORTED
;
940 } else if (*err
!= 0) {
941 /* We got an error reading the capture file.
942 XXX - pop up a dialog box instead? */
943 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
944 wtap_strerror(*err
), err_info
, cf
->filename
);
947 return CF_READ_ERROR
;
953 cf_fake_continue_tail(capture_file
*cf
) {
954 cf
->state
= FILE_READ_DONE
;
958 cf_finish_tail(capture_file
*cf
, int *err
)
965 gboolean create_proto_tree
;
969 /* Compile the current display filter.
970 * We assume this will not fail since cf->dfilter is only set in
971 * cf_filter IFF the filter was valid.
973 compiled
= dfilter_compile(cf
->dfilter
, &dfcode
);
974 g_assert(!cf
->dfilter
|| (compiled
&& dfcode
));
976 /* Get the union of the flags for all tap listeners. */
977 tap_flags
= union_of_tap_listener_flags();
978 cinfo
= (tap_flags
& TL_REQUIRES_COLUMNS
) ? &cf
->cinfo
: NULL
;
980 (dfcode
!= NULL
|| have_filtering_tap_listeners() || (tap_flags
& TL_REQUIRES_PROTO_TREE
));
982 if (cf
->wth
== NULL
) {
984 return CF_READ_ERROR
;
987 packet_list_check_end();
988 /* Don't freeze/thaw the list when doing live capture */
989 /*packet_list_freeze();*/
991 epan_dissect_init(&edt
, cf
->epan
, create_proto_tree
, FALSE
);
993 while ((wtap_read(cf
->wth
, err
, &err_info
, &data_offset
))) {
994 if (cf
->state
== FILE_READ_ABORTED
) {
995 /* Well, the user decided to abort the read. Break out of the
996 loop, and let the code below (which is called even if there
997 aren't any packets left to read) exit. */
1000 read_packet(cf
, dfcode
, &edt
, cinfo
, data_offset
);
1003 /* Cleanup and release all dfilter resources */
1004 if (dfcode
!= NULL
) {
1005 dfilter_free(dfcode
);
1008 epan_dissect_cleanup(&edt
);
1010 /* Don't freeze/thaw the list when doing live capture */
1011 /*packet_list_thaw();*/
1013 if (cf
->state
== FILE_READ_ABORTED
) {
1014 /* Well, the user decided to abort the read. We're only called
1015 when the child capture process closes the pipe to us (meaning
1016 it's probably exited), so we can just close the capture
1017 file; we return CF_READ_ABORTED so our caller can do whatever
1018 is appropriate when that happens. */
1020 return CF_READ_ABORTED
;
1023 if (auto_scroll_live
&& cf
->count
!= 0)
1024 packet_list_moveto_end();
1026 /* We're done reading sequentially through the file. */
1027 cf
->state
= FILE_READ_DONE
;
1029 /* We're done reading sequentially through the file; close the
1030 sequential I/O side, to free up memory it requires. */
1031 wtap_sequential_close(cf
->wth
);
1033 /* Allow the protocol dissectors to free up memory that they
1034 * don't need after the sequential run-through of the packets. */
1035 postseq_cleanup_all_protocols();
1037 /* Update the file encapsulation; it might have changed based on the
1038 packets we've read. */
1039 cf
->lnk_t
= wtap_file_encap(cf
->wth
);
1041 /* Update the details in the file-set dialog, as the capture file
1042 * has likely grown since we first stat-ed it */
1043 fileset_update_file(cf
->filename
);
1046 /* We got an error reading the capture file.
1047 XXX - pop up a dialog box? */
1049 g_warning("Error \"%s\" while reading: \"%s\" (\"%s\")",
1050 wtap_strerror(*err
), err_info
, cf
->filename
);
1052 return CF_READ_ERROR
;
1057 #endif /* HAVE_LIBPCAP */
1060 cf_get_display_name(capture_file
*cf
)
1064 /* Return a name to use in displays */
1065 if (!cf
->is_tempfile
) {
1066 /* Get the last component of the file name, and use that. */
1068 displayname
= g_filename_display_basename(cf
->filename
);
1070 displayname
=g_strdup("(No file)");
1073 /* The file we read is a temporary file from a live capture or
1074 a merge operation; we don't mention its name, but, if it's
1075 from a capture, give the source of the capture. */
1077 displayname
= g_strdup(cf
->source
);
1079 displayname
= g_strdup("(Untitled)");
1085 void cf_set_tempfile_source(capture_file
*cf
, gchar
*source
) {
1091 cf
->source
= g_strdup(source
);
1093 cf
->source
= g_strdup("");
1097 const gchar
*cf_get_tempfile_source(capture_file
*cf
) {
1105 /* XXX - use a macro instead? */
1107 cf_get_packet_count(capture_file
*cf
)
1112 /* XXX - use a macro instead? */
1114 cf_set_packet_count(capture_file
*cf
, int packet_count
)
1116 cf
->count
= packet_count
;
1119 /* XXX - use a macro instead? */
1121 cf_is_tempfile(capture_file
*cf
)
1123 return cf
->is_tempfile
;
1126 void cf_set_tempfile(capture_file
*cf
, gboolean is_tempfile
)
1128 cf
->is_tempfile
= is_tempfile
;
1132 /* XXX - use a macro instead? */
1133 void cf_set_drops_known(capture_file
*cf
, gboolean drops_known
)
1135 cf
->drops_known
= drops_known
;
1138 /* XXX - use a macro instead? */
1139 void cf_set_drops(capture_file
*cf
, guint32 drops
)
1144 /* XXX - use a macro instead? */
1145 gboolean
cf_get_drops_known(capture_file
*cf
)
1147 return cf
->drops_known
;
1150 /* XXX - use a macro instead? */
1151 guint32
cf_get_drops(capture_file
*cf
)
1156 void cf_set_rfcode(capture_file
*cf
, dfilter_t
*rfcode
)
1158 cf
->rfcode
= rfcode
;
1162 add_packet_to_packet_list(frame_data
*fdata
, capture_file
*cf
,
1163 epan_dissect_t
*edt
, dfilter_t
*dfcode
, column_info
*cinfo
,
1164 struct wtap_pkthdr
*phdr
, const guint8
*buf
, gboolean add_to_packet_list
)
1168 frame_data_set_before_dissect(fdata
, &cf
->elapsed_time
,
1169 &cf
->ref
, cf
->prev_dis
);
1170 cf
->prev_cap
= fdata
;
1172 if (dfcode
!= NULL
) {
1173 epan_dissect_prime_dfilter(edt
, dfcode
);
1176 /* Dissect the frame. */
1177 epan_dissect_run_with_taps(edt
, phdr
, frame_tvbuff_new(fdata
, buf
), fdata
, cinfo
);
1179 /* If we don't have a display filter, set "passed_dfilter" to 1. */
1180 if (dfcode
!= NULL
) {
1181 fdata
->flags
.passed_dfilter
= dfilter_apply_edt(dfcode
, edt
) ? 1 : 0;
1183 if (fdata
->flags
.passed_dfilter
) {
1184 /* This frame passed the display filter but it may depend on other
1185 * (potentially not displayed) frames. Find those frames and mark them
1188 g_slist_foreach(edt
->pi
.dependent_frames
, find_and_mark_frame_depended_upon
, cf
->frames
);
1191 fdata
->flags
.passed_dfilter
= 1;
1193 if (fdata
->flags
.passed_dfilter
|| fdata
->flags
.ref_time
)
1194 cf
->displayed_count
++;
1196 if (add_to_packet_list
) {
1197 /* We fill the needed columns from new_packet_list */
1198 row
= packet_list_append(cinfo
, fdata
, &edt
->pi
);
1201 if (fdata
->flags
.passed_dfilter
|| fdata
->flags
.ref_time
)
1203 frame_data_set_after_dissect(fdata
, &cf
->cum_bytes
);
1204 cf
->prev_dis
= fdata
;
1206 /* If we haven't yet seen the first frame, this is it.
1208 XXX - we must do this before we add the row to the display,
1209 as, if the display's GtkCList's selection mode is
1210 GTK_SELECTION_BROWSE, when the first entry is added to it,
1211 "cf_select_packet()" will be called, and it will fetch the row
1212 data for the 0th row, and will get a null pointer rather than
1213 "fdata", as "gtk_clist_append()" won't yet have returned and
1214 thus "gtk_clist_set_row_data()" won't yet have been called.
1216 We thus need to leave behind bread crumbs so that
1217 "cf_select_packet()" can find this frame. See the comment
1218 in "cf_select_packet()". */
1219 if (cf
->first_displayed
== 0)
1220 cf
->first_displayed
= fdata
->num
;
1222 /* This is the last frame we've seen so far. */
1223 cf
->last_displayed
= fdata
->num
;
1226 epan_dissect_reset(edt
);
1230 /* read in a new packet */
1231 /* returns the row of the new packet in the packet list or -1 if not displayed */
1233 read_packet(capture_file
*cf
, dfilter_t
*dfcode
, epan_dissect_t
*edt
,
1234 column_info
*cinfo
, gint64 offset
)
1236 struct wtap_pkthdr
*phdr
= wtap_phdr(cf
->wth
);
1237 const guint8
*buf
= wtap_buf_ptr(cf
->wth
);
1244 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
1245 it's not already there.
1246 XXX - yes, this is O(N), so if every packet had a different
1247 link-layer encapsulation type, it'd be O(N^2) to read the file, but
1248 there are probably going to be a small number of encapsulation types
1250 cf_add_encapsulation_type(cf
, phdr
->pkt_encap
);
1252 /* The frame number of this packet is one more than the count of
1253 frames in the file so far. */
1254 framenum
= cf
->count
+ 1;
1256 frame_data_init(&fdlocal
, framenum
, phdr
, offset
, cf
->cum_bytes
);
1260 epan_dissect_t rf_edt
;
1262 epan_dissect_init(&rf_edt
, cf
->epan
, TRUE
, FALSE
);
1263 epan_dissect_prime_dfilter(&rf_edt
, cf
->rfcode
);
1264 epan_dissect_run(&rf_edt
, phdr
, frame_tvbuff_new(&fdlocal
, buf
), &fdlocal
, NULL
);
1265 passed
= dfilter_apply_edt(cf
->rfcode
, &rf_edt
);
1266 epan_dissect_cleanup(&rf_edt
);
1270 /* This does a shallow copy of fdlocal, which is good enough. */
1271 fdata
= frame_data_sequence_add(cf
->frames
, &fdlocal
);
1274 if (phdr
->opt_comment
!= NULL
)
1275 cf
->packet_comment_count
++;
1276 cf
->f_datalen
= offset
+ fdlocal
.cap_len
;
1278 if (!cf
->redissecting
) {
1279 row
= add_packet_to_packet_list(fdata
, cf
, edt
, dfcode
,
1280 cinfo
, phdr
, buf
, TRUE
);
1288 cf_merge_files(char **out_filenamep
, int in_file_count
,
1289 char *const *in_filenames
, int file_type
, gboolean do_append
)
1291 merge_in_file_t
*in_files
, *in_file
;
1296 int open_err
, read_err
, write_err
, close_err
;
1300 gboolean got_read_error
= FALSE
, got_write_error
= FALSE
;
1302 progdlg_t
*progbar
= NULL
;
1304 gint64 f_len
, file_pos
;
1306 GTimeVal start_time
;
1307 gchar status_str
[100];
1308 gint64 progbar_nextstep
;
1309 gint64 progbar_quantum
;
1310 gchar
*display_basename
;
1311 int selected_frame_type
;
1312 gboolean fake_interface_ids
= FALSE
;
1314 /* open the input files */
1315 if (!merge_open_in_files(in_file_count
, in_filenames
, &in_files
,
1316 &open_err
, &err_info
, &err_fileno
)) {
1318 cf_open_failure_alert_box(in_filenames
[err_fileno
], open_err
, err_info
,
1323 if (*out_filenamep
!= NULL
) {
1324 out_filename
= *out_filenamep
;
1325 out_fd
= ws_open(out_filename
, O_CREAT
|O_TRUNC
|O_BINARY
, 0600);
1329 out_fd
= create_tempfile(&tmpname
, "wireshark");
1332 out_filename
= g_strdup(tmpname
);
1333 *out_filenamep
= out_filename
;
1337 merge_close_in_files(in_file_count
, in_files
);
1339 cf_open_failure_alert_box(out_filename
, open_err
, NULL
, TRUE
, file_type
);
1343 selected_frame_type
= merge_select_frame_type(in_file_count
, in_files
);
1345 /* If we are trying to merge a number of libpcap files with different encapsulation types
1346 * change the output file type to pcapng and create SHB and IDB:s for the new file use the
1347 * interface index stored in in_files per file to change the phdr before writing the datablock.
1348 * XXX should it be an option to convert to pcapng?
1350 * We need something similar when merging pcapng files possibly with an option to say
1351 * the same interface(s) used in all in files. SHBs comments should be merged together.
1353 if ((selected_frame_type
== WTAP_ENCAP_PER_PACKET
)&&(file_type
== WTAP_FILE_TYPE_SUBTYPE_PCAP
)) {
1354 /* Write output in pcapng format */
1355 wtapng_section_t
*shb_hdr
;
1356 wtapng_iface_descriptions_t
*idb_inf
, *idb_inf_merge_file
;
1357 wtapng_if_descr_t int_data
, *file_int_data
;
1358 GString
*comment_gstr
;
1360 fake_interface_ids
= TRUE
;
1361 /* Create SHB info */
1362 shb_hdr
= wtap_file_get_shb_info(in_files
[0].wth
);
1363 comment_gstr
= g_string_new("");
1364 g_string_append_printf(comment_gstr
, "%s \n",shb_hdr
->opt_comment
);
1365 g_string_append_printf(comment_gstr
, "File created by merging: \n");
1366 file_type
= WTAP_FILE_TYPE_SUBTYPE_PCAPNG
;
1368 for (i
= 0; i
< in_file_count
; i
++) {
1369 g_string_append_printf(comment_gstr
, "File%d: %s \n",i
+1,in_files
[i
].filename
);
1371 shb_hdr
->section_length
= -1;
1373 shb_hdr
->opt_comment
= g_string_free(comment_gstr
, FALSE
); /* NULL if not available */
1374 shb_hdr
->shb_hardware
= NULL
; /* NULL if not available, UTF-8 string containing the */
1375 /* description of the hardware used to create this section. */
1376 shb_hdr
->shb_os
= NULL
; /* NULL if not available, UTF-8 string containing the name */
1377 /* of the operating system used to create this section. */
1378 shb_hdr
->shb_user_appl
= "Wireshark"; /* NULL if not available, UTF-8 string containing the name */
1379 /* of the application used to create this section. */
1381 /* create fake IDB info */
1382 idb_inf
= g_new(wtapng_iface_descriptions_t
,1);
1383 idb_inf
->number_of_interfaces
= in_file_count
; /* TODO make this the number of DIFFERENT encapsulation types
1384 * check that snaplength is the same too?
1386 idb_inf
->interface_data
= g_array_new(FALSE
, FALSE
, sizeof(wtapng_if_descr_t
));
1388 for (i
= 0; i
< in_file_count
; i
++) {
1389 idb_inf_merge_file
= wtap_file_get_idb_info(in_files
[i
].wth
);
1390 /* read the interface data from the in file to our combined interfca data */
1391 file_int_data
= &g_array_index (idb_inf_merge_file
->interface_data
, wtapng_if_descr_t
, 0);
1392 int_data
.wtap_encap
= file_int_data
->wtap_encap
;
1393 int_data
.time_units_per_second
= file_int_data
->time_units_per_second
;
1394 int_data
.link_type
= file_int_data
->link_type
;
1395 int_data
.snap_len
= file_int_data
->snap_len
;
1396 int_data
.if_name
= g_strdup(file_int_data
->if_name
);
1397 int_data
.opt_comment
= NULL
;
1398 int_data
.if_description
= NULL
;
1399 int_data
.if_speed
= 0;
1400 int_data
.if_tsresol
= 6;
1401 int_data
.if_filter_str
= NULL
;
1402 int_data
.bpf_filter_len
= 0;
1403 int_data
.if_filter_bpf_bytes
= NULL
;
1404 int_data
.if_os
= NULL
;
1405 int_data
.if_fcslen
= -1;
1406 int_data
.num_stat_entries
= 0; /* Number of ISB:s */
1407 int_data
.interface_statistics
= NULL
;
1409 g_array_append_val(idb_inf
->interface_data
, int_data
);
1410 g_free(idb_inf_merge_file
);
1412 /* Set fake interface Id in per file data */
1413 in_files
[i
].interface_id
= i
;
1416 pdh
= wtap_dump_fdopen_ng(out_fd
, file_type
,
1417 selected_frame_type
,
1418 merge_max_snapshot_length(in_file_count
, in_files
),
1419 FALSE
/* compressed */, shb_hdr
, idb_inf
/* wtapng_iface_descriptions_t *idb_inf */, &open_err
);
1423 merge_close_in_files(in_file_count
, in_files
);
1425 cf_open_failure_alert_box(out_filename
, open_err
, err_info
, TRUE
,
1432 pdh
= wtap_dump_fdopen(out_fd
, file_type
,
1433 selected_frame_type
,
1434 merge_max_snapshot_length(in_file_count
, in_files
),
1435 FALSE
/* compressed */, &open_err
);
1438 merge_close_in_files(in_file_count
, in_files
);
1440 cf_open_failure_alert_box(out_filename
, open_err
, err_info
, TRUE
,
1446 /* Get the sum of the sizes of all the files. */
1448 for (i
= 0; i
< in_file_count
; i
++)
1449 f_len
+= in_files
[i
].size
;
1451 /* Update the progress bar when it gets to this value. */
1452 progbar_nextstep
= 0;
1453 /* When we reach the value that triggers a progress bar update,
1454 bump that value by this amount. */
1455 progbar_quantum
= f_len
/N_PROGBAR_UPDATES
;
1456 /* Progress so far. */
1460 g_get_current_time(&start_time
);
1462 /* do the merge (or append) */
1465 in_file
= merge_append_read_packet(in_file_count
, in_files
, &read_err
,
1468 in_file
= merge_read_packet(in_file_count
, in_files
, &read_err
,
1470 if (in_file
== NULL
) {
1475 if (read_err
!= 0) {
1476 /* I/O error reading from in_file */
1477 got_read_error
= TRUE
;
1481 /* Get the sum of the data offsets in all of the files. */
1483 for (i
= 0; i
< in_file_count
; i
++)
1484 data_offset
+= in_files
[i
].data_offset
;
1486 /* Create the progress bar if necessary.
1487 We check on every iteration of the loop, so that it takes no
1488 longer than the standard time to create it (otherwise, for a
1489 large file, we might take considerably longer than that standard
1490 time in order to get to the next progress bar step). */
1491 if (progbar
== NULL
) {
1492 progbar
= delayed_create_progress_dlg(NULL
, "Merging", "files",
1493 FALSE
, &stop_flag
, &start_time
, progbar_val
);
1496 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1497 when we update it, we have to run the GTK+ main loop to get it
1498 to repaint what's pending, and doing so may involve an "ioctl()"
1499 to see if there's any pending input from an X server, and doing
1500 that for every packet can be costly, especially on a big file. */
1501 if (data_offset
>= progbar_nextstep
) {
1502 /* Get the sum of the seek positions in all of the files. */
1504 for (i
= 0; i
< in_file_count
; i
++)
1505 file_pos
+= wtap_read_so_far(in_files
[i
].wth
);
1506 progbar_val
= (gfloat
) file_pos
/ (gfloat
) f_len
;
1507 if (progbar_val
> 1.0f
) {
1508 /* Some file probably grew while we were reading it.
1509 That "shouldn't happen", so we'll just clip the progress
1513 if (progbar
!= NULL
) {
1514 g_snprintf(status_str
, sizeof(status_str
),
1515 "%" G_GINT64_MODIFIER
"dKB of %" G_GINT64_MODIFIER
"dKB",
1516 file_pos
/ 1024, f_len
/ 1024);
1517 update_progress_dlg(progbar
, progbar_val
, status_str
);
1519 progbar_nextstep
+= progbar_quantum
;
1523 /* Well, the user decided to abort the merge. */
1527 /* If we have WTAP_ENCAP_PER_PACKET and the infiles are of type
1528 * WTAP_FILE_TYPE_SUBTYPE_PCAP, we need to set the interface id
1529 * in the paket header = the interface index we used in the IDBs
1530 * interface description for this file(encapsulation type).
1532 if (fake_interface_ids
) {
1533 struct wtap_pkthdr
*phdr
;
1535 phdr
= wtap_phdr(in_file
->wth
);
1536 phdr
->interface_id
= in_file
->interface_id
;
1537 phdr
->presence_flags
= phdr
->presence_flags
| WTAP_HAS_INTERFACE_ID
;
1539 if (!wtap_dump(pdh
, wtap_phdr(in_file
->wth
),
1540 wtap_buf_ptr(in_file
->wth
), &write_err
)) {
1541 got_write_error
= TRUE
;
1546 /* We're done merging the files; destroy the progress bar if it was created. */
1547 if (progbar
!= NULL
)
1548 destroy_progress_dlg(progbar
);
1550 merge_close_in_files(in_file_count
, in_files
);
1551 if (!got_read_error
&& !got_write_error
) {
1552 if (!wtap_dump_close(pdh
, &write_err
))
1553 got_write_error
= TRUE
;
1555 wtap_dump_close(pdh
, &close_err
);
1557 if (got_read_error
) {
1559 * Find the file on which we got the error, and report the error.
1561 for (i
= 0; i
< in_file_count
; i
++) {
1562 if (in_files
[i
].state
== GOT_ERROR
) {
1563 /* Put up a message box noting that a read failed somewhere along
1565 display_basename
= g_filename_display_basename(in_files
[i
].filename
);
1568 case WTAP_ERR_UNSUPPORTED_ENCAP
:
1569 simple_error_message_box(
1570 "The capture file %s has a packet with a network type that Wireshark doesn't support.\n(%s)",
1571 display_basename
, err_info
);
1575 case WTAP_ERR_CANT_READ
:
1576 simple_error_message_box(
1577 "An attempt to read from the capture file %s failed for"
1578 " some unknown reason.", display_basename
);
1581 case WTAP_ERR_SHORT_READ
:
1582 simple_error_message_box(
1583 "The capture file %s appears to have been cut short"
1584 " in the middle of a packet.", display_basename
);
1587 case WTAP_ERR_BAD_FILE
:
1588 simple_error_message_box(
1589 "The capture file %s appears to be damaged or corrupt.\n(%s)",
1590 display_basename
, err_info
);
1594 case WTAP_ERR_DECOMPRESS
:
1595 simple_error_message_box(
1596 "The compressed capture file %s appears to be damaged or corrupt.\n"
1597 "(%s)", display_basename
, err_info
);
1602 simple_error_message_box(
1603 "An error occurred while reading the"
1604 " capture file %s: %s.",
1605 display_basename
, wtap_strerror(read_err
));
1608 g_free(display_basename
);
1613 if (got_write_error
) {
1614 /* Put up an alert box for the write error. */
1615 if (write_err
< 0) {
1616 /* Wiretap error. */
1617 switch (write_err
) {
1619 case WTAP_ERR_UNSUPPORTED_ENCAP
:
1621 * This is a problem with the particular frame we're writing;
1622 * note that, and give the frame number.
1624 display_basename
= g_filename_display_basename(in_file
->filename
);
1625 simple_error_message_box(
1626 "Frame %u of \"%s\" has a network type that can't be saved in a \"%s\" file.",
1627 in_file
->packet_num
, display_basename
,
1628 wtap_file_type_subtype_string(file_type
));
1629 g_free(display_basename
);
1633 display_basename
= g_filename_display_basename(out_filename
);
1634 simple_error_message_box(
1635 "An error occurred while writing to the file \"%s\": %s.",
1636 out_filename
, wtap_strerror(write_err
));
1637 g_free(display_basename
);
1642 write_failure_alert_box(out_filename
, write_err
);
1646 if (got_read_error
|| got_write_error
|| stop_flag
) {
1647 /* Callers aren't expected to treat an error or an explicit abort
1648 differently - we put up error dialogs ourselves, so they don't
1656 cf_filter_packets(capture_file
*cf
, gchar
*dftext
, gboolean force
)
1658 const char *filter_new
= dftext
? dftext
: "";
1659 const char *filter_old
= cf
->dfilter
? cf
->dfilter
: "";
1661 GTimeVal start_time
;
1663 /* if new filter equals old one, do nothing unless told to do so */
1664 if (!force
&& strcmp(filter_new
, filter_old
) == 0) {
1670 if (dftext
== NULL
) {
1671 /* The new filter is an empty filter (i.e., display all packets).
1672 * so leave dfcode==NULL
1676 * We have a filter; make a copy of it (as we'll be saving it),
1677 * and try to compile it.
1679 dftext
= g_strdup(dftext
);
1680 if (!dfilter_compile(dftext
, &dfcode
)) {
1681 /* The attempt failed; report an error. */
1682 simple_message_box(ESD_TYPE_ERROR
, NULL
,
1683 "See the help for a description of the display filter syntax.",
1684 "\"%s\" isn't a valid display filter: %s",
1685 dftext
, dfilter_error_msg
);
1691 if (dfcode
== NULL
) {
1692 /* Yes - free the filter text, and set it to null. */
1698 /* We have a valid filter. Replace the current filter. */
1699 g_free(cf
->dfilter
);
1700 cf
->dfilter
= dftext
;
1701 g_get_current_time(&start_time
);
1704 /* Now rescan the packet list, applying the new filter, but not
1705 throwing away information constructed on a previous pass. */
1706 if (dftext
== NULL
) {
1707 rescan_packets(cf
, "Resetting", "Filter", FALSE
);
1709 rescan_packets(cf
, "Filtering", dftext
, FALSE
);
1712 /* Cleanup and release all dfilter resources */
1713 dfilter_free(dfcode
);
1719 cf_reftime_packets(capture_file
*cf
)
1721 ref_time_packets(cf
);
1725 cf_redissect_packets(capture_file
*cf
)
1727 if (cf
->state
!= FILE_CLOSED
) {
1728 rescan_packets(cf
, "Reprocessing", "all packets", TRUE
);
1733 cf_read_frame_r(capture_file
*cf
, const frame_data
*fdata
,
1734 struct wtap_pkthdr
*phdr
, Buffer
*buf
)
1738 gchar
*display_basename
;
1740 #ifdef WANT_PACKET_EDITOR
1741 /* if fdata->file_off == -1 it means packet was edited, and we must find data inside edited_frames tree */
1742 if (G_UNLIKELY(fdata
->file_off
== -1)) {
1743 const modified_frame_data
*frame
= (const modified_frame_data
*) g_tree_lookup(cf
->edited_frames
, GINT_TO_POINTER(fdata
->num
));
1746 simple_error_message_box("fdata->file_off == -1, but can't find modified frame!");
1750 *phdr
= frame
->phdr
;
1751 buffer_assure_space(buf
, frame
->phdr
.caplen
);
1752 memcpy(buffer_start_ptr(buf
), frame
->pd
, frame
->phdr
.caplen
);
1757 if (!wtap_seek_read(cf
->wth
, fdata
->file_off
, phdr
, buf
,
1758 fdata
->cap_len
, &err
, &err_info
)) {
1759 display_basename
= g_filename_display_basename(cf
->filename
);
1762 case WTAP_ERR_UNSUPPORTED_ENCAP
:
1763 simple_error_message_box("The file \"%s\" has a packet with a network type that Wireshark doesn't support.\n(%s)",
1764 display_basename
, err_info
);
1768 case WTAP_ERR_BAD_FILE
:
1769 simple_error_message_box("An error occurred while reading from the file \"%s\": %s.\n(%s)",
1770 display_basename
, wtap_strerror(err
), err_info
);
1775 simple_error_message_box(
1776 "An error occurred while reading from the file \"%s\": %s.",
1777 display_basename
, wtap_strerror(err
));
1780 g_free(display_basename
);
1787 cf_read_frame(capture_file
*cf
, frame_data
*fdata
)
1789 return cf_read_frame_r(cf
, fdata
, &cf
->phdr
, &cf
->buf
);
1792 /* Rescan the list of packets, reconstructing the CList.
1794 "action" describes why we're doing this; it's used in the progress
1797 "action_item" describes what we're doing; it's used in the progress
1800 "redissect" is TRUE if we need to make the dissectors reconstruct
1801 any state information they have (because a preference that affects
1802 some dissector has changed, meaning some dissector might construct
1803 its state differently from the way it was constructed the last time). */
1805 rescan_packets(capture_file
*cf
, const char *action
, const char *action_item
, gboolean redissect
)
1807 /* Rescan packets new packet list */
1810 progdlg_t
*progbar
= NULL
;
1813 frame_data
*selected_frame
, *preceding_frame
, *following_frame
, *prev_frame
;
1814 int selected_frame_num
, preceding_frame_num
, following_frame_num
, prev_frame_num
;
1815 gboolean selected_frame_seen
;
1817 GTimeVal start_time
;
1818 gchar status_str
[100];
1819 int progbar_nextstep
;
1820 int progbar_quantum
;
1824 gboolean create_proto_tree
;
1826 gboolean add_to_packet_list
= FALSE
;
1828 guint32 frames_count
;
1830 /* Compile the current display filter.
1831 * We assume this will not fail since cf->dfilter is only set in
1832 * cf_filter IFF the filter was valid.
1834 compiled
= dfilter_compile(cf
->dfilter
, &dfcode
);
1835 g_assert(!cf
->dfilter
|| (compiled
&& dfcode
));
1837 /* Get the union of the flags for all tap listeners. */
1838 tap_flags
= union_of_tap_listener_flags();
1839 cinfo
= (tap_flags
& TL_REQUIRES_COLUMNS
) ? &cf
->cinfo
: NULL
;
1841 (dfcode
!= NULL
|| have_filtering_tap_listeners() || (tap_flags
& TL_REQUIRES_PROTO_TREE
));
1843 reset_tap_listeners();
1844 /* Which frame, if any, is the currently selected frame?
1845 XXX - should the selected frame or the focus frame be the "current"
1846 frame, that frame being the one from which "Find Frame" searches
1848 selected_frame
= cf
->current_frame
;
1850 /* Mark frame num as not found */
1851 selected_frame_num
= -1;
1853 /* Freeze the packet list while we redo it, so we don't get any
1854 screen updates while it happens. */
1855 packet_list_freeze();
1858 /* We need to re-initialize all the state information that protocols
1859 keep, because some preference that controls a dissector has changed,
1860 which might cause the state information to be constructed differently
1861 by that dissector. */
1863 /* We might receive new packets while redissecting, and we don't
1864 want to dissect those before their time. */
1865 cf
->redissecting
= TRUE
;
1867 /* 'reset' dissection session */
1868 epan_free(cf
->epan
);
1869 cf
->epan
= ws_epan_new(cf
);
1871 /* We need to redissect the packets so we have to discard our old
1872 * packet list store. */
1873 packet_list_clear();
1874 add_to_packet_list
= TRUE
;
1877 /* We don't yet know which will be the first and last frames displayed. */
1878 cf
->first_displayed
= 0;
1879 cf
->last_displayed
= 0;
1881 /* We currently don't display any packets */
1882 cf
->displayed_count
= 0;
1884 /* Iterate through the list of frames. Call a routine for each frame
1885 to check whether it should be displayed and, if so, add it to
1886 the display list. */
1888 cf
->prev_dis
= NULL
;
1889 cf
->prev_cap
= NULL
;
1892 /* Update the progress bar when it gets to this value. */
1893 progbar_nextstep
= 0;
1894 /* When we reach the value that triggers a progress bar update,
1895 bump that value by this amount. */
1896 progbar_quantum
= cf
->count
/N_PROGBAR_UPDATES
;
1897 /* Count of packets at which we've looked. */
1899 /* Progress so far. */
1903 g_get_current_time(&start_time
);
1905 /* no previous row yet */
1906 prev_frame_num
= -1;
1909 preceding_frame_num
= -1;
1910 preceding_frame
= NULL
;
1911 following_frame_num
= -1;
1912 following_frame
= NULL
;
1914 selected_frame_seen
= FALSE
;
1916 frames_count
= cf
->count
;
1918 epan_dissect_init(&edt
, cf
->epan
, create_proto_tree
, FALSE
);
1920 for (framenum
= 1; framenum
<= frames_count
; framenum
++) {
1921 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
1923 /* Create the progress bar if necessary.
1924 We check on every iteration of the loop, so that it takes no
1925 longer than the standard time to create it (otherwise, for a
1926 large file, we might take considerably longer than that standard
1927 time in order to get to the next progress bar step). */
1928 if (progbar
== NULL
)
1929 progbar
= delayed_create_progress_dlg(cf
->window
, action
, action_item
, TRUE
,
1930 &stop_flag
, &start_time
,
1933 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1934 when we update it, we have to run the GTK+ main loop to get it
1935 to repaint what's pending, and doing so may involve an "ioctl()"
1936 to see if there's any pending input from an X server, and doing
1937 that for every packet can be costly, especially on a big file. */
1938 if (count
>= progbar_nextstep
) {
1939 /* let's not divide by zero. I should never be started
1940 * with count == 0, so let's assert that
1942 g_assert(cf
->count
> 0);
1943 progbar_val
= (gfloat
) count
/ frames_count
;
1945 if (progbar
!= NULL
) {
1946 g_snprintf(status_str
, sizeof(status_str
),
1947 "%4u of %u frames", count
, frames_count
);
1948 update_progress_dlg(progbar
, progbar_val
, status_str
);
1951 progbar_nextstep
+= progbar_quantum
;
1955 /* Well, the user decided to abort the filtering. Just stop.
1957 XXX - go back to the previous filter? Users probably just
1958 want not to wait for a filtering operation to finish;
1959 unless we cancel by having no filter, reverting to the
1960 previous filter will probably be even more expensive than
1961 continuing the filtering, as it involves going back to the
1962 beginning and filtering, and even with no filter we currently
1963 have to re-generate the entire clist, which is also expensive.
1965 I'm not sure what Network Monitor does, but it doesn't appear
1966 to give you an unfiltered display if you cancel. */
1973 /* Since all state for the frame was destroyed, mark the frame
1974 * as not visited, free the GSList referring to the state
1975 * data (the per-frame data itself was freed by
1976 * "init_dissection()"), and null out the GSList pointer. */
1977 frame_data_reset(fdata
);
1978 frames_count
= cf
->count
;
1981 /* Frame dependencies from the previous dissection/filtering are no longer valid. */
1982 fdata
->flags
.dependent_of_displayed
= 0;
1984 if (!cf_read_frame(cf
, fdata
))
1985 break; /* error reading the frame */
1987 /* If the previous frame is displayed, and we haven't yet seen the
1988 selected frame, remember that frame - it's the closest one we've
1989 yet seen before the selected frame. */
1990 if (prev_frame_num
!= -1 && !selected_frame_seen
&& prev_frame
->flags
.passed_dfilter
) {
1991 preceding_frame_num
= prev_frame_num
;
1992 preceding_frame
= prev_frame
;
1995 add_packet_to_packet_list(fdata
, cf
, &edt
, dfcode
,
1997 buffer_start_ptr(&cf
->buf
),
1998 add_to_packet_list
);
2000 /* If this frame is displayed, and this is the first frame we've
2001 seen displayed after the selected frame, remember this frame -
2002 it's the closest one we've yet seen at or after the selected
2004 if (fdata
->flags
.passed_dfilter
&& selected_frame_seen
&& following_frame_num
== -1) {
2005 following_frame_num
= fdata
->num
;
2006 following_frame
= fdata
;
2008 if (fdata
== selected_frame
) {
2009 selected_frame_seen
= TRUE
;
2010 if (fdata
->flags
.passed_dfilter
)
2011 selected_frame_num
= fdata
->num
;
2014 /* Remember this frame - it'll be the previous frame
2015 on the next pass through the loop. */
2016 prev_frame_num
= fdata
->num
;
2020 epan_dissect_cleanup(&edt
);
2022 /* We are done redissecting the packet list. */
2023 cf
->redissecting
= FALSE
;
2026 frames_count
= cf
->count
;
2027 /* Clear out what remains of the visited flags and per-frame data
2030 XXX - that may cause various forms of bogosity when dissecting
2031 these frames, as they won't have been seen by this sequential
2032 pass, but the only alternative I see is to keep scanning them
2033 even though the user requested that the scan stop, and that
2034 would leave the user stuck with an Wireshark grinding on
2035 until it finishes. Should we just stick them with that? */
2036 for (; framenum
<= frames_count
; framenum
++) {
2037 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
2038 frame_data_reset(fdata
);
2042 /* We're done filtering the packets; destroy the progress bar if it
2044 if (progbar
!= NULL
)
2045 destroy_progress_dlg(progbar
);
2047 /* Unfreeze the packet list. */
2048 if (!add_to_packet_list
)
2049 packet_list_recreate_visible_rows();
2051 /* Compute the time it took to filter the file */
2052 compute_elapsed(cf
, &start_time
);
2056 if (selected_frame_num
== -1) {
2057 /* The selected frame didn't pass the filter. */
2058 if (selected_frame
== NULL
) {
2059 /* That's because there *was* no selected frame. Make the first
2060 displayed frame the current frame. */
2061 selected_frame_num
= 0;
2063 /* Find the nearest displayed frame to the selected frame (whether
2064 it's before or after that frame) and make that the current frame.
2065 If the next and previous displayed frames are equidistant from the
2066 selected frame, choose the next one. */
2067 g_assert(following_frame
== NULL
||
2068 following_frame
->num
>= selected_frame
->num
);
2069 g_assert(preceding_frame
== NULL
||
2070 preceding_frame
->num
<= selected_frame
->num
);
2071 if (following_frame
== NULL
) {
2072 /* No frame after the selected frame passed the filter, so we
2073 have to select the last displayed frame before the selected
2075 selected_frame_num
= preceding_frame_num
;
2076 selected_frame
= preceding_frame
;
2077 } else if (preceding_frame
== NULL
) {
2078 /* No frame before the selected frame passed the filter, so we
2079 have to select the first displayed frame after the selected
2081 selected_frame_num
= following_frame_num
;
2082 selected_frame
= following_frame
;
2084 /* Frames before and after the selected frame passed the filter, so
2085 we'll select the previous frame */
2086 selected_frame_num
= preceding_frame_num
;
2087 selected_frame
= preceding_frame
;
2092 if (selected_frame_num
== -1) {
2093 /* There are no frames displayed at all. */
2094 cf_unselect_packet(cf
);
2096 /* Either the frame that was selected passed the filter, or we've
2097 found the nearest displayed frame to that frame. Select it, make
2098 it the focus row, and make it visible. */
2099 /* Set to invalid to force update of packet list and packet details */
2100 cf
->current_row
= -1;
2101 if (selected_frame_num
== 0) {
2102 packet_list_select_first_row();
2104 if (!packet_list_select_row_from_data(selected_frame
)) {
2105 /* We didn't find a row corresponding to this frame.
2106 This means that the frame isn't being displayed currently,
2107 so we can't select it. */
2108 simple_message_box(ESD_TYPE_INFO
, NULL
,
2109 "The capture file is probably not fully dissected.",
2110 "End of capture exceeded!");
2115 /* Cleanup and release all dfilter resources */
2116 dfilter_free(dfcode
);
2121 * Scan trough all frame data and recalculate the ref time
2122 * without rereading the file.
2123 * XXX - do we need a progres bar or is this fast enough?
2126 ref_time_packets(capture_file
*cf
)
2133 cf
->prev_dis
= NULL
;
2136 for (framenum
= 1; framenum
<= cf
->count
; framenum
++) {
2137 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
2139 /* just add some value here until we know if it is being displayed or not */
2140 fdata
->cum_bytes
= cf
->cum_bytes
+ fdata
->pkt_len
;
2146 /* If we don't have the time stamp of the first packet in the
2147 capture, it's because this is the first packet. Save the time
2148 stamp of this packet as the time stamp of the first packet. */
2149 if (cf
->ref
== NULL
)
2151 /* if this frames is marked as a reference time frame, reset
2152 firstsec and firstusec to this frame */
2153 if (fdata
->flags
.ref_time
)
2156 /* If we don't have the time stamp of the previous displayed packet,
2157 it's because this is the first displayed packet. Save the time
2158 stamp of this packet as the time stamp of the previous displayed
2160 if (cf
->prev_dis
== NULL
) {
2161 cf
->prev_dis
= fdata
;
2164 /* Get the time elapsed between the first packet and this packet. */
2165 fdata
->frame_ref_num
= (fdata
!= cf
->ref
) ? cf
->ref
->num
: 0;
2166 nstime_delta(&rel_ts
, &fdata
->abs_ts
, &cf
->ref
->abs_ts
);
2168 /* If it's greater than the current elapsed time, set the elapsed time
2169 to it (we check for "greater than" so as not to be confused by
2170 time moving backwards). */
2171 if ((gint32
)cf
->elapsed_time
.secs
< rel_ts
.secs
2172 || ((gint32
)cf
->elapsed_time
.secs
== rel_ts
.secs
&& (gint32
)cf
->elapsed_time
.nsecs
< rel_ts
.nsecs
)) {
2173 cf
->elapsed_time
= rel_ts
;
2176 /* If this frame is displayed, get the time elapsed between the
2177 previous displayed packet and this packet. */
2178 if ( fdata
->flags
.passed_dfilter
) {
2179 fdata
->prev_dis_num
= cf
->prev_dis
->num
;
2180 cf
->prev_dis
= fdata
;
2186 if ( (fdata
->flags
.passed_dfilter
) || (fdata
->flags
.ref_time
) ) {
2187 /* This frame either passed the display filter list or is marked as
2188 a time reference frame. All time reference frames are displayed
2189 even if they dont pass the display filter */
2190 if (fdata
->flags
.ref_time
) {
2191 /* if this was a TIME REF frame we should reset the cum_bytes field */
2192 cf
->cum_bytes
= fdata
->pkt_len
;
2193 fdata
->cum_bytes
= cf
->cum_bytes
;
2195 /* increase cum_bytes with this packets length */
2196 cf
->cum_bytes
+= fdata
->pkt_len
;
2209 process_specified_packets(capture_file
*cf
, packet_range_t
*range
,
2210 const char *string1
, const char *string2
, gboolean terminate_is_stop
,
2211 gboolean (*callback
)(capture_file
*, frame_data
*,
2212 struct wtap_pkthdr
*, const guint8
*, void *),
2213 void *callback_args
)
2218 psp_return_t ret
= PSP_FINISHED
;
2220 progdlg_t
*progbar
= NULL
;
2223 gboolean progbar_stop_flag
;
2224 GTimeVal progbar_start_time
;
2225 gchar progbar_status_str
[100];
2226 int progbar_nextstep
;
2227 int progbar_quantum
;
2228 range_process_e process_this
;
2229 struct wtap_pkthdr phdr
;
2231 memset(&phdr
, 0, sizeof(struct wtap_pkthdr
));
2232 buffer_init(&buf
, 1500);
2234 /* Update the progress bar when it gets to this value. */
2235 progbar_nextstep
= 0;
2236 /* When we reach the value that triggers a progress bar update,
2237 bump that value by this amount. */
2238 progbar_quantum
= cf
->count
/N_PROGBAR_UPDATES
;
2239 /* Count of packets at which we've looked. */
2241 /* Progress so far. */
2244 progbar_stop_flag
= FALSE
;
2245 g_get_current_time(&progbar_start_time
);
2248 packet_range_process_init(range
);
2250 /* Iterate through all the packets, printing the packets that
2251 were selected by the current display filter. */
2252 for (framenum
= 1; framenum
<= cf
->count
; framenum
++) {
2253 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
2255 /* Create the progress bar if necessary.
2256 We check on every iteration of the loop, so that it takes no
2257 longer than the standard time to create it (otherwise, for a
2258 large file, we might take considerably longer than that standard
2259 time in order to get to the next progress bar step). */
2260 if (progbar
== NULL
)
2261 progbar
= delayed_create_progress_dlg(cf
->window
, string1
, string2
,
2264 &progbar_start_time
,
2267 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2268 when we update it, we have to run the GTK+ main loop to get it
2269 to repaint what's pending, and doing so may involve an "ioctl()"
2270 to see if there's any pending input from an X server, and doing
2271 that for every packet can be costly, especially on a big file. */
2272 if (progbar_count
>= progbar_nextstep
) {
2273 /* let's not divide by zero. I should never be started
2274 * with count == 0, so let's assert that
2276 g_assert(cf
->count
> 0);
2277 progbar_val
= (gfloat
) progbar_count
/ cf
->count
;
2279 if (progbar
!= NULL
) {
2280 g_snprintf(progbar_status_str
, sizeof(progbar_status_str
),
2281 "%4u of %u packets", progbar_count
, cf
->count
);
2282 update_progress_dlg(progbar
, progbar_val
, progbar_status_str
);
2285 progbar_nextstep
+= progbar_quantum
;
2288 if (progbar_stop_flag
) {
2289 /* Well, the user decided to abort the operation. Just stop,
2290 and arrange to return PSP_STOPPED to our caller, so they know
2291 it was stopped explicitly. */
2298 if (range
!= NULL
) {
2299 /* do we have to process this packet? */
2300 process_this
= packet_range_process_packet(range
, fdata
);
2301 if (process_this
== range_process_next
) {
2302 /* this packet uninteresting, continue with next one */
2304 } else if (process_this
== range_processing_finished
) {
2305 /* all interesting packets processed, stop the loop */
2310 /* Get the packet */
2311 if (!cf_read_frame_r(cf
, fdata
, &phdr
, &buf
)) {
2312 /* Attempt to get the packet failed. */
2316 /* Process the packet */
2317 if (!callback(cf
, fdata
, &phdr
, buffer_start_ptr(&buf
), callback_args
)) {
2318 /* Callback failed. We assume it reported the error appropriately. */
2324 /* We're done printing the packets; destroy the progress bar if
2326 if (progbar
!= NULL
)
2327 destroy_progress_dlg(progbar
);
2337 } retap_callback_args_t
;
2340 retap_packet(capture_file
*cf _U_
, frame_data
*fdata
,
2341 struct wtap_pkthdr
*phdr
, const guint8
*pd
,
2344 retap_callback_args_t
*args
= (retap_callback_args_t
*)argsp
;
2346 epan_dissect_run_with_taps(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, args
->cinfo
);
2347 epan_dissect_reset(&args
->edt
);
2353 cf_retap_packets(capture_file
*cf
)
2355 packet_range_t range
;
2356 retap_callback_args_t callback_args
;
2357 gboolean construct_protocol_tree
;
2358 gboolean filtering_tap_listeners
;
2362 /* Do we have any tap listeners with filters? */
2363 filtering_tap_listeners
= have_filtering_tap_listeners();
2365 tap_flags
= union_of_tap_listener_flags();
2367 /* If any tap listeners have filters, or require the protocol tree,
2368 construct the protocol tree. */
2369 construct_protocol_tree
= filtering_tap_listeners
||
2370 (tap_flags
& TL_REQUIRES_PROTO_TREE
);
2372 /* If any tap listeners require the columns, construct them. */
2373 callback_args
.cinfo
= (tap_flags
& TL_REQUIRES_COLUMNS
) ? &cf
->cinfo
: NULL
;
2375 /* Reset the tap listeners. */
2376 reset_tap_listeners();
2378 epan_dissect_init(&callback_args
.edt
, cf
->epan
, construct_protocol_tree
, FALSE
);
2380 /* Iterate through the list of packets, dissecting all packets and
2381 re-running the taps. */
2382 packet_range_init(&range
, cf
);
2383 packet_range_process_init(&range
);
2385 ret
= process_specified_packets(cf
, &range
, "Recalculating statistics on",
2386 "all packets", TRUE
, retap_packet
,
2389 epan_dissect_cleanup(&callback_args
.edt
);
2393 /* Completed successfully. */
2397 /* Well, the user decided to abort the refiltering.
2398 Return CF_READ_ABORTED so our caller knows they did that. */
2399 return CF_READ_ABORTED
;
2402 /* Error while retapping. */
2403 return CF_READ_ERROR
;
2406 g_assert_not_reached();
2411 print_args_t
*print_args
;
2412 gboolean print_header_line
;
2413 char *header_line_buf
;
2414 int header_line_buf_len
;
2415 gboolean print_formfeed
;
2416 gboolean print_separator
;
2420 int num_visible_cols
;
2423 } print_callback_args_t
;
2426 print_packet(capture_file
*cf
, frame_data
*fdata
,
2427 struct wtap_pkthdr
*phdr
, const guint8
*pd
,
2430 print_callback_args_t
*args
= (print_callback_args_t
*)argsp
;
2436 char bookmark_name
[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
2437 char bookmark_title
[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
2439 /* Fill in the column information if we're printing the summary
2441 if (args
->print_args
->print_summary
) {
2442 col_custom_prime_edt(&args
->edt
, &cf
->cinfo
);
2443 epan_dissect_run(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, &cf
->cinfo
);
2444 epan_dissect_fill_in_columns(&args
->edt
, FALSE
, TRUE
);
2446 epan_dissect_run(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, NULL
);
2448 if (args
->print_formfeed
) {
2449 if (!new_page(args
->print_args
->stream
))
2452 if (args
->print_separator
) {
2453 if (!print_line(args
->print_args
->stream
, 0, ""))
2459 * We generate bookmarks, if the output format supports them.
2460 * The name is "__frameN__".
2462 g_snprintf(bookmark_name
, sizeof bookmark_name
, "__frame%u__", fdata
->num
);
2464 if (args
->print_args
->print_summary
) {
2465 if (!args
->print_args
->print_col_headings
)
2466 args
->print_header_line
= FALSE
;
2467 if (args
->print_header_line
) {
2468 if (!print_line(args
->print_args
->stream
, 0, args
->header_line_buf
))
2470 args
->print_header_line
= FALSE
; /* we might not need to print any more */
2472 cp
= &args
->line_buf
[0];
2474 for (i
= 0; i
< args
->num_visible_cols
; i
++) {
2475 /* Find the length of the string for this column. */
2476 column_len
= (int) strlen(cf
->cinfo
.col_data
[args
->visible_cols
[i
]]);
2477 if (args
->col_widths
[i
] > column_len
)
2478 column_len
= args
->col_widths
[i
];
2480 /* Make sure there's room in the line buffer for the column; if not,
2481 double its length. */
2482 line_len
+= column_len
+ 1; /* "+1" for space */
2483 if (line_len
> args
->line_buf_len
) {
2484 cp_off
= (int) (cp
- args
->line_buf
);
2485 args
->line_buf_len
= 2 * line_len
;
2486 args
->line_buf
= (char *)g_realloc(args
->line_buf
, args
->line_buf_len
+ 1);
2487 cp
= args
->line_buf
+ cp_off
;
2490 /* Right-justify the packet number column. */
2491 if (cf
->cinfo
.col_fmt
[args
->visible_cols
[i
]] == COL_NUMBER
)
2492 g_snprintf(cp
, column_len
+1, "%*s", args
->col_widths
[i
], cf
->cinfo
.col_data
[args
->visible_cols
[i
]]);
2494 g_snprintf(cp
, column_len
+1, "%-*s", args
->col_widths
[i
], cf
->cinfo
.col_data
[args
->visible_cols
[i
]]);
2496 if (i
!= args
->num_visible_cols
- 1)
2502 * Generate a bookmark, using the summary line as the title.
2504 if (!print_bookmark(args
->print_args
->stream
, bookmark_name
,
2508 if (!print_line(args
->print_args
->stream
, 0, args
->line_buf
))
2512 * Generate a bookmark, using "Frame N" as the title, as we're not
2513 * printing the summary line.
2515 g_snprintf(bookmark_title
, sizeof bookmark_title
, "Frame %u", fdata
->num
);
2516 if (!print_bookmark(args
->print_args
->stream
, bookmark_name
,
2519 } /* if (print_summary) */
2521 if (args
->print_args
->print_dissections
!= print_dissections_none
) {
2522 if (args
->print_args
->print_summary
) {
2523 /* Separate the summary line from the tree with a blank line. */
2524 if (!print_line(args
->print_args
->stream
, 0, ""))
2528 /* Print the information in that tree. */
2529 if (!proto_tree_print(args
->print_args
, &args
->edt
, args
->print_args
->stream
))
2532 /* Print a blank line if we print anything after this (aka more than one packet). */
2533 args
->print_separator
= TRUE
;
2535 /* Print a header line if we print any more packet summaries */
2536 if (args
->print_args
->print_col_headings
)
2537 args
->print_header_line
= TRUE
;
2540 if (args
->print_args
->print_hex
) {
2541 if (args
->print_args
->print_summary
|| (args
->print_args
->print_dissections
!= print_dissections_none
)) {
2542 if (!print_line(args
->print_args
->stream
, 0, ""))
2545 /* Print the full packet data as hex. */
2546 if (!print_hex_data(args
->print_args
->stream
, &args
->edt
))
2549 /* Print a blank line if we print anything after this (aka more than one packet). */
2550 args
->print_separator
= TRUE
;
2552 /* Print a header line if we print any more packet summaries */
2553 if (args
->print_args
->print_col_headings
)
2554 args
->print_header_line
= TRUE
;
2555 } /* if (args->print_args->print_dissections != print_dissections_none) */
2557 epan_dissect_reset(&args
->edt
);
2559 /* do we want to have a formfeed between each packet from now on? */
2560 if (args
->print_args
->print_formfeed
) {
2561 args
->print_formfeed
= TRUE
;
2567 epan_dissect_reset(&args
->edt
);
2572 cf_print_packets(capture_file
*cf
, print_args_t
*print_args
)
2574 print_callback_args_t callback_args
;
2577 int i
, cp_off
, column_len
, line_len
;
2578 int num_visible_col
= 0, last_visible_col
= 0, visible_col_count
;
2582 gboolean proto_tree_needed
;
2584 callback_args
.print_args
= print_args
;
2585 callback_args
.print_header_line
= print_args
->print_col_headings
;
2586 callback_args
.header_line_buf
= NULL
;
2587 callback_args
.header_line_buf_len
= 256;
2588 callback_args
.print_formfeed
= FALSE
;
2589 callback_args
.print_separator
= FALSE
;
2590 callback_args
.line_buf
= NULL
;
2591 callback_args
.line_buf_len
= 256;
2592 callback_args
.col_widths
= NULL
;
2593 callback_args
.num_visible_cols
= 0;
2594 callback_args
.visible_cols
= NULL
;
2596 if (!print_preamble(print_args
->stream
, cf
->filename
, wireshark_svnversion
)) {
2597 destroy_print_stream(print_args
->stream
);
2598 return CF_PRINT_WRITE_ERROR
;
2601 if (print_args
->print_summary
) {
2602 /* We're printing packet summaries. Allocate the header line buffer
2603 and get the column widths. */
2604 callback_args
.header_line_buf
= (char *)g_malloc(callback_args
.header_line_buf_len
+ 1);
2606 /* Find the number of visible columns and the last visible column */
2607 for (i
= 0; i
< prefs
.num_cols
; i
++) {
2609 clp
= g_list_nth(prefs
.col_list
, i
);
2610 if (clp
== NULL
) /* Sanity check, Invalid column requested */
2613 cfmt
= (fmt_data
*) clp
->data
;
2614 if (cfmt
->visible
) {
2616 last_visible_col
= i
;
2620 /* Find the widths for each of the columns - maximum of the
2621 width of the title and the width of the data - and construct
2622 a buffer with a line containing the column titles. */
2623 callback_args
.num_visible_cols
= num_visible_col
;
2624 callback_args
.col_widths
= (gint
*) g_malloc(sizeof(gint
) * num_visible_col
);
2625 callback_args
.visible_cols
= (gint
*) g_malloc(sizeof(gint
) * num_visible_col
);
2626 cp
= &callback_args
.header_line_buf
[0];
2628 visible_col_count
= 0;
2629 for (i
= 0; i
< cf
->cinfo
.num_cols
; i
++) {
2631 clp
= g_list_nth(prefs
.col_list
, i
);
2632 if (clp
== NULL
) /* Sanity check, Invalid column requested */
2635 cfmt
= (fmt_data
*) clp
->data
;
2636 if (cfmt
->visible
== FALSE
)
2639 /* Save the order of visible columns */
2640 callback_args
.visible_cols
[visible_col_count
] = i
;
2642 /* Don't pad the last column. */
2643 if (i
== last_visible_col
)
2644 callback_args
.col_widths
[visible_col_count
] = 0;
2646 callback_args
.col_widths
[visible_col_count
] = (gint
) strlen(cf
->cinfo
.col_title
[i
]);
2647 data_width
= get_column_char_width(get_column_format(i
));
2648 if (data_width
> callback_args
.col_widths
[visible_col_count
])
2649 callback_args
.col_widths
[visible_col_count
] = data_width
;
2652 /* Find the length of the string for this column. */
2653 column_len
= (int) strlen(cf
->cinfo
.col_title
[i
]);
2654 if (callback_args
.col_widths
[i
] > column_len
)
2655 column_len
= callback_args
.col_widths
[visible_col_count
];
2657 /* Make sure there's room in the line buffer for the column; if not,
2658 double its length. */
2659 line_len
+= column_len
+ 1; /* "+1" for space */
2660 if (line_len
> callback_args
.header_line_buf_len
) {
2661 cp_off
= (int) (cp
- callback_args
.header_line_buf
);
2662 callback_args
.header_line_buf_len
= 2 * line_len
;
2663 callback_args
.header_line_buf
= (char *)g_realloc(callback_args
.header_line_buf
,
2664 callback_args
.header_line_buf_len
+ 1);
2665 cp
= callback_args
.header_line_buf
+ cp_off
;
2668 /* Right-justify the packet number column. */
2669 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2670 g_snprintf(cp, column_len+1, "%*s", callback_args.col_widths[visible_col_count], cf->cinfo.col_title[i]);
2672 g_snprintf(cp
, column_len
+1, "%-*s", callback_args
.col_widths
[visible_col_count
], cf
->cinfo
.col_title
[i
]);
2674 if (i
!= cf
->cinfo
.num_cols
- 1)
2677 visible_col_count
++;
2681 /* Now start out the main line buffer with the same length as the
2682 header line buffer. */
2683 callback_args
.line_buf_len
= callback_args
.header_line_buf_len
;
2684 callback_args
.line_buf
= (char *)g_malloc(callback_args
.line_buf_len
+ 1);
2685 } /* if (print_summary) */
2687 /* Create the protocol tree, and make it visible, if we're printing
2688 the dissection or the hex data.
2689 XXX - do we need it if we're just printing the hex data? */
2691 callback_args
.print_args
->print_dissections
!= print_dissections_none
||
2692 callback_args
.print_args
->print_hex
||
2693 have_custom_cols(&cf
->cinfo
);
2694 epan_dissect_init(&callback_args
.edt
, cf
->epan
, proto_tree_needed
, proto_tree_needed
);
2696 /* Iterate through the list of packets, printing the packets we were
2698 ret
= process_specified_packets(cf
, &print_args
->range
, "Printing",
2699 "selected packets", TRUE
, print_packet
,
2701 epan_dissect_cleanup(&callback_args
.edt
);
2702 g_free(callback_args
.header_line_buf
);
2703 g_free(callback_args
.line_buf
);
2704 g_free(callback_args
.col_widths
);
2705 g_free(callback_args
.visible_cols
);
2710 /* Completed successfully. */
2714 /* Well, the user decided to abort the printing.
2716 XXX - note that what got generated before they did that
2717 will get printed if we're piping to a print program; we'd
2718 have to write to a file and then hand that to the print
2719 program to make it actually not print anything. */
2723 /* Error while printing.
2725 XXX - note that what got generated before they did that
2726 will get printed if we're piping to a print program; we'd
2727 have to write to a file and then hand that to the print
2728 program to make it actually not print anything. */
2729 destroy_print_stream(print_args
->stream
);
2730 return CF_PRINT_WRITE_ERROR
;
2733 if (!print_finale(print_args
->stream
)) {
2734 destroy_print_stream(print_args
->stream
);
2735 return CF_PRINT_WRITE_ERROR
;
2738 if (!destroy_print_stream(print_args
->stream
))
2739 return CF_PRINT_WRITE_ERROR
;
2747 } write_packet_callback_args_t
;
2750 write_pdml_packet(capture_file
*cf _U_
, frame_data
*fdata
,
2751 struct wtap_pkthdr
*phdr
, const guint8
*pd
,
2754 write_packet_callback_args_t
*args
= (write_packet_callback_args_t
*)argsp
;
2756 /* Create the protocol tree, but don't fill in the column information. */
2757 epan_dissect_run(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, NULL
);
2759 /* Write out the information in that tree. */
2760 proto_tree_write_pdml(&args
->edt
, args
->fh
);
2762 epan_dissect_reset(&args
->edt
);
2764 return !ferror(args
->fh
);
2768 cf_write_pdml_packets(capture_file
*cf
, print_args_t
*print_args
)
2770 write_packet_callback_args_t callback_args
;
2774 fh
= ws_fopen(print_args
->file
, "w");
2776 return CF_PRINT_OPEN_ERROR
; /* attempt to open destination failed */
2778 write_pdml_preamble(fh
, cf
->filename
);
2781 return CF_PRINT_WRITE_ERROR
;
2784 callback_args
.fh
= fh
;
2785 epan_dissect_init(&callback_args
.edt
, cf
->epan
, TRUE
, TRUE
);
2787 /* Iterate through the list of packets, printing the packets we were
2789 ret
= process_specified_packets(cf
, &print_args
->range
, "Writing PDML",
2790 "selected packets", TRUE
,
2791 write_pdml_packet
, &callback_args
);
2793 epan_dissect_cleanup(&callback_args
.edt
);
2798 /* Completed successfully. */
2802 /* Well, the user decided to abort the printing. */
2806 /* Error while printing. */
2808 return CF_PRINT_WRITE_ERROR
;
2811 write_pdml_finale(fh
);
2814 return CF_PRINT_WRITE_ERROR
;
2817 /* XXX - check for an error */
2824 write_psml_packet(capture_file
*cf
, frame_data
*fdata
,
2825 struct wtap_pkthdr
*phdr
, const guint8
*pd
,
2828 write_packet_callback_args_t
*args
= (write_packet_callback_args_t
*)argsp
;
2830 col_custom_prime_edt(&args
->edt
, &cf
->cinfo
);
2831 epan_dissect_run(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, &cf
->cinfo
);
2832 epan_dissect_fill_in_columns(&args
->edt
, FALSE
, TRUE
);
2834 /* Write out the information in that tree. */
2835 proto_tree_write_psml(&args
->edt
, args
->fh
);
2837 epan_dissect_reset(&args
->edt
);
2839 return !ferror(args
->fh
);
2843 cf_write_psml_packets(capture_file
*cf
, print_args_t
*print_args
)
2845 write_packet_callback_args_t callback_args
;
2849 gboolean proto_tree_needed
;
2851 fh
= ws_fopen(print_args
->file
, "w");
2853 return CF_PRINT_OPEN_ERROR
; /* attempt to open destination failed */
2855 write_psml_preamble(fh
);
2858 return CF_PRINT_WRITE_ERROR
;
2861 callback_args
.fh
= fh
;
2863 /* Fill in the column information, only create the protocol tree
2864 if having custom columns. */
2865 proto_tree_needed
= have_custom_cols(&cf
->cinfo
);
2866 epan_dissect_init(&callback_args
.edt
, cf
->epan
, proto_tree_needed
, proto_tree_needed
);
2868 /* Iterate through the list of packets, printing the packets we were
2870 ret
= process_specified_packets(cf
, &print_args
->range
, "Writing PSML",
2871 "selected packets", TRUE
,
2872 write_psml_packet
, &callback_args
);
2874 epan_dissect_cleanup(&callback_args
.edt
);
2879 /* Completed successfully. */
2883 /* Well, the user decided to abort the printing. */
2887 /* Error while printing. */
2889 return CF_PRINT_WRITE_ERROR
;
2892 write_psml_finale(fh
);
2895 return CF_PRINT_WRITE_ERROR
;
2898 /* XXX - check for an error */
2905 write_csv_packet(capture_file
*cf
, frame_data
*fdata
,
2906 struct wtap_pkthdr
*phdr
, const guint8
*pd
,
2909 write_packet_callback_args_t
*args
= (write_packet_callback_args_t
*)argsp
;
2911 /* Fill in the column information */
2912 col_custom_prime_edt(&args
->edt
, &cf
->cinfo
);
2913 epan_dissect_run(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, &cf
->cinfo
);
2914 epan_dissect_fill_in_columns(&args
->edt
, FALSE
, TRUE
);
2916 /* Write out the information in that tree. */
2917 proto_tree_write_csv(&args
->edt
, args
->fh
);
2919 epan_dissect_reset(&args
->edt
);
2921 return !ferror(args
->fh
);
2925 cf_write_csv_packets(capture_file
*cf
, print_args_t
*print_args
)
2927 write_packet_callback_args_t callback_args
;
2928 gboolean proto_tree_needed
;
2932 fh
= ws_fopen(print_args
->file
, "w");
2934 return CF_PRINT_OPEN_ERROR
; /* attempt to open destination failed */
2936 write_csv_preamble(fh
);
2939 return CF_PRINT_WRITE_ERROR
;
2942 callback_args
.fh
= fh
;
2944 /* only create the protocol tree if having custom columns. */
2945 proto_tree_needed
= have_custom_cols(&cf
->cinfo
);
2946 epan_dissect_init(&callback_args
.edt
, cf
->epan
, proto_tree_needed
, proto_tree_needed
);
2948 /* Iterate through the list of packets, printing the packets we were
2950 ret
= process_specified_packets(cf
, &print_args
->range
, "Writing CSV",
2951 "selected packets", TRUE
,
2952 write_csv_packet
, fh
);
2954 epan_dissect_cleanup(&callback_args
.edt
);
2959 /* Completed successfully. */
2963 /* Well, the user decided to abort the printing. */
2967 /* Error while printing. */
2969 return CF_PRINT_WRITE_ERROR
;
2972 write_csv_finale(fh
);
2975 return CF_PRINT_WRITE_ERROR
;
2978 /* XXX - check for an error */
2985 write_carrays_packet(capture_file
*cf _U_
, frame_data
*fdata
,
2986 struct wtap_pkthdr
*phdr
,
2987 const guint8
*pd
, void *argsp
)
2989 write_packet_callback_args_t
*args
= (write_packet_callback_args_t
*)argsp
;
2991 epan_dissect_run(&args
->edt
, phdr
, frame_tvbuff_new(fdata
, pd
), fdata
, NULL
);
2992 proto_tree_write_carrays(fdata
->num
, args
->fh
, &args
->edt
);
2993 epan_dissect_reset(&args
->edt
);
2995 return !ferror(args
->fh
);
2999 cf_write_carrays_packets(capture_file
*cf
, print_args_t
*print_args
)
3001 write_packet_callback_args_t callback_args
;
3005 fh
= ws_fopen(print_args
->file
, "w");
3008 return CF_PRINT_OPEN_ERROR
; /* attempt to open destination failed */
3010 write_carrays_preamble(fh
);
3014 return CF_PRINT_WRITE_ERROR
;
3017 callback_args
.fh
= fh
;
3018 epan_dissect_init(&callback_args
.edt
, cf
->epan
, TRUE
, TRUE
);
3020 /* Iterate through the list of packets, printing the packets we were
3022 ret
= process_specified_packets(cf
, &print_args
->range
,
3024 "selected packets", TRUE
,
3025 write_carrays_packet
, &callback_args
);
3027 epan_dissect_cleanup(&callback_args
.edt
);
3031 /* Completed successfully. */
3034 /* Well, the user decided to abort the printing. */
3037 /* Error while printing. */
3039 return CF_PRINT_WRITE_ERROR
;
3042 write_carrays_finale(fh
);
3046 return CF_PRINT_WRITE_ERROR
;
3054 cf_find_packet_protocol_tree(capture_file
*cf
, const char *string
,
3055 search_direction dir
)
3059 mdata
.string
= string
;
3060 mdata
.string_len
= strlen(string
);
3061 return find_packet(cf
, match_protocol_tree
, &mdata
, dir
);
3065 cf_find_string_protocol_tree(capture_file
*cf
, proto_tree
*tree
, match_data
*mdata
)
3067 mdata
->frame_matched
= FALSE
;
3068 mdata
->string
= convert_string_case(cf
->sfilter
, cf
->case_type
);
3069 mdata
->string_len
= strlen(mdata
->string
);
3071 /* Iterate through all the nodes looking for matching text */
3072 proto_tree_children_foreach(tree
, match_subtree_text
, mdata
);
3073 return mdata
->frame_matched
? MR_MATCHED
: MR_NOTMATCHED
;
3077 match_protocol_tree(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3079 match_data
*mdata
= (match_data
*)criterion
;
3082 /* Load the frame's data. */
3083 if (!cf_read_frame(cf
, fdata
)) {
3084 /* Attempt to get the packet failed. */
3088 /* Construct the protocol tree, including the displayed text */
3089 epan_dissect_init(&edt
, cf
->epan
, TRUE
, TRUE
);
3090 /* We don't need the column information */
3091 epan_dissect_run(&edt
, &cf
->phdr
, frame_tvbuff_new_buffer(fdata
, &cf
->buf
), fdata
, NULL
);
3093 /* Iterate through all the nodes, seeing if they have text that matches. */
3095 mdata
->frame_matched
= FALSE
;
3096 proto_tree_children_foreach(edt
.tree
, match_subtree_text
, mdata
);
3097 epan_dissect_cleanup(&edt
);
3098 return mdata
->frame_matched
? MR_MATCHED
: MR_NOTMATCHED
;
3102 match_subtree_text(proto_node
*node
, gpointer data
)
3104 match_data
*mdata
= (match_data
*) data
;
3105 const gchar
*string
= mdata
->string
;
3106 size_t string_len
= mdata
->string_len
;
3107 capture_file
*cf
= mdata
->cf
;
3108 field_info
*fi
= PNODE_FINFO(node
);
3109 gchar label_str
[ITEM_LABEL_LENGTH
];
3116 /* dissection with an invisible proto tree? */
3119 if (mdata
->frame_matched
) {
3120 /* We already had a match; don't bother doing any more work. */
3124 /* Don't match invisible entries. */
3125 if (PROTO_ITEM_IS_HIDDEN(node
))
3128 /* was a free format label produced? */
3130 label_ptr
= fi
->rep
->representation
;
3132 /* no, make a generic label */
3133 label_ptr
= label_str
;
3134 proto_item_fill_label(fi
, label_str
);
3137 /* Does that label match? */
3138 label_len
= strlen(label_ptr
);
3139 for (i
= 0; i
< label_len
; i
++) {
3140 c_char
= label_ptr
[i
];
3142 c_char
= toupper(c_char
);
3143 if (c_char
== string
[c_match
]) {
3145 if (c_match
== string_len
) {
3146 /* No need to look further; we have a match */
3147 mdata
->frame_matched
= TRUE
;
3155 /* Recurse into the subtree, if it exists */
3156 if (node
->first_child
!= NULL
)
3157 proto_tree_children_foreach(node
, match_subtree_text
, mdata
);
3161 cf_find_packet_summary_line(capture_file
*cf
, const char *string
,
3162 search_direction dir
)
3166 mdata
.string
= string
;
3167 mdata
.string_len
= strlen(string
);
3168 return find_packet(cf
, match_summary_line
, &mdata
, dir
);
3172 match_summary_line(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3174 match_data
*mdata
= (match_data
*)criterion
;
3175 const gchar
*string
= mdata
->string
;
3176 size_t string_len
= mdata
->string_len
;
3178 const char *info_column
;
3179 size_t info_column_len
;
3180 match_result result
= MR_NOTMATCHED
;
3186 /* Load the frame's data. */
3187 if (!cf_read_frame(cf
, fdata
)) {
3188 /* Attempt to get the packet failed. */
3192 /* Don't bother constructing the protocol tree */
3193 epan_dissect_init(&edt
, cf
->epan
, FALSE
, FALSE
);
3194 /* Get the column information */
3195 epan_dissect_run(&edt
, &cf
->phdr
, frame_tvbuff_new_buffer(fdata
, &cf
->buf
), fdata
,
3198 /* Find the Info column */
3199 for (colx
= 0; colx
< cf
->cinfo
.num_cols
; colx
++) {
3200 if (cf
->cinfo
.fmt_matx
[colx
][COL_INFO
]) {
3201 /* Found it. See if we match. */
3202 info_column
= edt
.pi
.cinfo
->col_data
[colx
];
3203 info_column_len
= strlen(info_column
);
3204 for (i
= 0; i
< info_column_len
; i
++) {
3205 c_char
= info_column
[i
];
3207 c_char
= toupper(c_char
);
3208 if (c_char
== string
[c_match
]) {
3210 if (c_match
== string_len
) {
3211 result
= MR_MATCHED
;
3220 epan_dissect_cleanup(&edt
);
3227 } cbs_t
; /* "Counted byte string" */
3231 * The current match_* routines only support ASCII case insensitivity and don't
3232 * convert UTF-8 inputs to UTF-16 for matching.
3234 * We could modify them to use the GLib Unicode routines or the International
3235 * Components for Unicode library but it's not apparent that we could do so
3236 * without consuming a lot more CPU and memory or that searching would be
3237 * significantly better.
3241 cf_find_packet_data(capture_file
*cf
, const guint8
*string
, size_t string_size
,
3242 search_direction dir
)
3247 info
.data_len
= string_size
;
3249 /* String or hex search? */
3251 /* String search - what type of string? */
3252 switch (cf
->scs_type
) {
3254 case SCS_NARROW_AND_WIDE
:
3255 return find_packet(cf
, match_narrow_and_wide
, &info
, dir
);
3258 return find_packet(cf
, match_narrow
, &info
, dir
);
3261 return find_packet(cf
, match_wide
, &info
, dir
);
3264 g_assert_not_reached();
3268 return find_packet(cf
, match_binary
, &info
, dir
);
3272 match_narrow_and_wide(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3274 cbs_t
*info
= (cbs_t
*)criterion
;
3275 const guint8
*ascii_text
= info
->data
;
3276 size_t textlen
= info
->data_len
;
3277 match_result result
;
3284 /* Load the frame's data. */
3285 if (!cf_read_frame(cf
, fdata
)) {
3286 /* Attempt to get the packet failed. */
3290 result
= MR_NOTMATCHED
;
3291 buf_len
= fdata
->cap_len
;
3292 pd
= buffer_start_ptr(&cf
->buf
);
3294 while (i
< buf_len
) {
3297 c_char
= toupper(c_char
);
3298 if (c_char
!= '\0') {
3299 if (c_char
== ascii_text
[c_match
]) {
3301 if (c_match
== textlen
) {
3302 result
= MR_MATCHED
;
3303 cf
->search_pos
= i
; /* Save the position of the last character
3304 for highlighting the field. */
3309 g_assert(i
>=c_match
);
3310 i
-= (guint32
)c_match
;
3320 match_narrow(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3323 cbs_t
*info
= (cbs_t
*)criterion
;
3324 const guint8
*ascii_text
= info
->data
;
3325 size_t textlen
= info
->data_len
;
3326 match_result result
;
3332 /* Load the frame's data. */
3333 if (!cf_read_frame(cf
, fdata
)) {
3334 /* Attempt to get the packet failed. */
3338 result
= MR_NOTMATCHED
;
3339 buf_len
= fdata
->cap_len
;
3340 pd
= buffer_start_ptr(&cf
->buf
);
3342 while (i
< buf_len
) {
3345 c_char
= toupper(c_char
);
3346 if (c_char
== ascii_text
[c_match
]) {
3348 if (c_match
== textlen
) {
3349 result
= MR_MATCHED
;
3350 cf
->search_pos
= i
; /* Save the position of the last character
3351 for highlighting the field. */
3356 g_assert(i
>=c_match
);
3357 i
-= (guint32
)c_match
;
3367 match_wide(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3369 cbs_t
*info
= (cbs_t
*)criterion
;
3370 const guint8
*ascii_text
= info
->data
;
3371 size_t textlen
= info
->data_len
;
3372 match_result result
;
3379 /* Load the frame's data. */
3380 if (!cf_read_frame(cf
, fdata
)) {
3381 /* Attempt to get the packet failed. */
3385 result
= MR_NOTMATCHED
;
3386 buf_len
= fdata
->cap_len
;
3387 pd
= buffer_start_ptr(&cf
->buf
);
3389 while (i
< buf_len
) {
3392 c_char
= toupper(c_char
);
3393 if (c_char
== ascii_text
[c_match
]) {
3395 if (c_match
== textlen
) {
3396 result
= MR_MATCHED
;
3397 cf
->search_pos
= i
; /* Save the position of the last character
3398 for highlighting the field. */
3404 g_assert(i
>=(c_match
*2));
3405 i
-= (guint32
)c_match
*2;
3414 match_binary(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3416 cbs_t
*info
= (cbs_t
*)criterion
;
3417 const guint8
*binary_data
= info
->data
;
3418 size_t datalen
= info
->data_len
;
3419 match_result result
;
3425 /* Load the frame's data. */
3426 if (!cf_read_frame(cf
, fdata
)) {
3427 /* Attempt to get the packet failed. */
3431 result
= MR_NOTMATCHED
;
3432 buf_len
= fdata
->cap_len
;
3433 pd
= buffer_start_ptr(&cf
->buf
);
3435 while (i
< buf_len
) {
3436 if (pd
[i
] == binary_data
[c_match
]) {
3438 if (c_match
== datalen
) {
3439 result
= MR_MATCHED
;
3440 cf
->search_pos
= i
; /* Save the position of the last character
3441 for highlighting the field. */
3446 g_assert(i
>=c_match
);
3447 i
-= (guint32
)c_match
;
3456 cf_find_packet_dfilter(capture_file
*cf
, dfilter_t
*sfcode
,
3457 search_direction dir
)
3459 return find_packet(cf
, match_dfilter
, sfcode
, dir
);
3463 cf_find_packet_dfilter_string(capture_file
*cf
, const char *filter
,
3464 search_direction dir
)
3469 if (!dfilter_compile(filter
, &sfcode
)) {
3471 * XXX - this shouldn't happen, as the filter string is machine
3476 if (sfcode
== NULL
) {
3478 * XXX - this shouldn't happen, as the filter string is machine
3483 result
= find_packet(cf
, match_dfilter
, sfcode
, dir
);
3484 dfilter_free(sfcode
);
3489 match_dfilter(capture_file
*cf
, frame_data
*fdata
, void *criterion
)
3491 dfilter_t
*sfcode
= (dfilter_t
*)criterion
;
3493 match_result result
;
3495 /* Load the frame's data. */
3496 if (!cf_read_frame(cf
, fdata
)) {
3497 /* Attempt to get the packet failed. */
3501 epan_dissect_init(&edt
, cf
->epan
, TRUE
, FALSE
);
3502 epan_dissect_prime_dfilter(&edt
, sfcode
);
3503 epan_dissect_run(&edt
, &cf
->phdr
, frame_tvbuff_new_buffer(fdata
, &cf
->buf
), fdata
, NULL
);
3504 result
= dfilter_apply_edt(sfcode
, &edt
) ? MR_MATCHED
: MR_NOTMATCHED
;
3505 epan_dissect_cleanup(&edt
);
3510 cf_find_packet_marked(capture_file
*cf
, search_direction dir
)
3512 return find_packet(cf
, match_marked
, NULL
, dir
);
3516 match_marked(capture_file
*cf _U_
, frame_data
*fdata
, void *criterion _U_
)
3518 return fdata
->flags
.marked
? MR_MATCHED
: MR_NOTMATCHED
;
3522 cf_find_packet_time_reference(capture_file
*cf
, search_direction dir
)
3524 return find_packet(cf
, match_time_reference
, NULL
, dir
);
3528 match_time_reference(capture_file
*cf _U_
, frame_data
*fdata
, void *criterion _U_
)
3530 return fdata
->flags
.ref_time
? MR_MATCHED
: MR_NOTMATCHED
;
3534 find_packet(capture_file
*cf
,
3535 match_result (*match_function
)(capture_file
*, frame_data
*, void *),
3536 void *criterion
, search_direction dir
)
3538 frame_data
*start_fd
;
3541 frame_data
*new_fd
= NULL
;
3542 progdlg_t
*progbar
= NULL
;
3547 GTimeVal start_time
;
3548 gchar status_str
[100];
3549 int progbar_nextstep
;
3550 int progbar_quantum
;
3552 match_result result
;
3554 start_fd
= cf
->current_frame
;
3555 if (start_fd
!= NULL
) {
3556 /* Iterate through the list of packets, starting at the packet we've
3557 picked, calling a routine to run the filter on the packet, see if
3558 it matches, and stop if so. */
3560 framenum
= start_fd
->num
;
3562 /* Update the progress bar when it gets to this value. */
3563 progbar_nextstep
= 0;
3564 /* When we reach the value that triggers a progress bar update,
3565 bump that value by this amount. */
3566 progbar_quantum
= cf
->count
/N_PROGBAR_UPDATES
;
3567 /* Progress so far. */
3571 g_get_current_time(&start_time
);
3573 title
= cf
->sfilter
?cf
->sfilter
:"";
3575 /* Create the progress bar if necessary.
3576 We check on every iteration of the loop, so that it takes no
3577 longer than the standard time to create it (otherwise, for a
3578 large file, we might take considerably longer than that standard
3579 time in order to get to the next progress bar step). */
3580 if (progbar
== NULL
)
3581 progbar
= delayed_create_progress_dlg(cf
->window
, "Searching", title
,
3582 FALSE
, &stop_flag
, &start_time
, progbar_val
);
3584 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
3585 when we update it, we have to run the GTK+ main loop to get it
3586 to repaint what's pending, and doing so may involve an "ioctl()"
3587 to see if there's any pending input from an X server, and doing
3588 that for every packet can be costly, especially on a big file. */
3589 if (count
>= progbar_nextstep
) {
3590 /* let's not divide by zero. I should never be started
3591 * with count == 0, so let's assert that
3593 g_assert(cf
->count
> 0);
3595 progbar_val
= (gfloat
) count
/ cf
->count
;
3597 if (progbar
!= NULL
) {
3598 g_snprintf(status_str
, sizeof(status_str
),
3599 "%4u of %u packets", count
, cf
->count
);
3600 update_progress_dlg(progbar
, progbar_val
, status_str
);
3603 progbar_nextstep
+= progbar_quantum
;
3607 /* Well, the user decided to abort the search. Go back to the
3608 frame where we started. */
3613 /* Go past the current frame. */
3614 if (dir
== SD_BACKWARD
) {
3615 /* Go on to the previous frame. */
3616 if (framenum
== 1) {
3618 * XXX - other apps have a bit more of a detailed message
3619 * for this, and instead of offering "OK" and "Cancel",
3620 * they offer things such as "Continue" and "Cancel";
3621 * we need an API for popping up alert boxes with
3622 * {Verb} and "Cancel".
3625 if (prefs
.gui_find_wrap
)
3627 statusbar_push_temporary_msg("Search reached the beginning. Continuing at end.");
3628 framenum
= cf
->count
; /* wrap around */
3632 statusbar_push_temporary_msg("Search reached the beginning.");
3633 framenum
= start_fd
->num
; /* stay on previous packet */
3638 /* Go on to the next frame. */
3639 if (framenum
== cf
->count
) {
3640 if (prefs
.gui_find_wrap
)
3642 statusbar_push_temporary_msg("Search reached the end. Continuing at beginning.");
3643 framenum
= 1; /* wrap around */
3647 statusbar_push_temporary_msg("Search reached the end.");
3648 framenum
= start_fd
->num
; /* stay on previous packet */
3653 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
3657 /* Is this packet in the display? */
3658 if (fdata
->flags
.passed_dfilter
) {
3659 /* Yes. Does it match the search criterion? */
3660 result
= (*match_function
)(cf
, fdata
, criterion
);
3661 if (result
== MR_ERROR
) {
3662 /* Error; our caller has reported the error. Go back to the frame
3663 where we started. */
3666 } else if (result
== MR_MATCHED
) {
3667 /* Yes. Go to the new frame. */
3673 if (fdata
== start_fd
) {
3674 /* We're back to the frame we were on originally, and that frame
3675 doesn't match the search filter. The search failed. */
3680 /* We're done scanning the packets; destroy the progress bar if it
3682 if (progbar
!= NULL
)
3683 destroy_progress_dlg(progbar
);
3686 if (new_fd
!= NULL
) {
3687 /* Find and select */
3688 cf
->search_in_progress
= TRUE
;
3689 found
= packet_list_select_row_from_data(new_fd
);
3690 cf
->search_in_progress
= FALSE
;
3691 cf
->search_pos
= 0; /* Reset the position */
3693 /* We didn't find a row corresponding to this frame.
3694 This means that the frame isn't being displayed currently,
3695 so we can't select it. */
3696 simple_message_box(ESD_TYPE_INFO
, NULL
,
3697 "The capture file is probably not fully dissected.",
3698 "End of capture exceeded!");
3701 return TRUE
; /* success */
3703 return FALSE
; /* failure */
3707 cf_goto_frame(capture_file
*cf
, guint fnumber
)
3711 fdata
= frame_data_sequence_find(cf
->frames
, fnumber
);
3713 if (fdata
== NULL
) {
3714 /* we didn't find a packet with that packet number */
3715 statusbar_push_temporary_msg("There is no packet number %u.", fnumber
);
3716 return FALSE
; /* we failed to go to that packet */
3718 if (!fdata
->flags
.passed_dfilter
) {
3719 /* that packet currently isn't displayed */
3720 /* XXX - add it to the set of displayed packets? */
3721 statusbar_push_temporary_msg("Packet number %u isn't displayed.", fnumber
);
3722 return FALSE
; /* we failed to go to that packet */
3725 if (!packet_list_select_row_from_data(fdata
)) {
3726 /* We didn't find a row corresponding to this frame.
3727 This means that the frame isn't being displayed currently,
3728 so we can't select it. */
3729 simple_message_box(ESD_TYPE_INFO
, NULL
,
3730 "The capture file is probably not fully dissected.",
3731 "End of capture exceeded!");
3734 return TRUE
; /* we got to that packet */
3738 cf_goto_top_frame(void)
3740 /* Find and select */
3741 packet_list_select_first_row();
3742 return TRUE
; /* we got to that packet */
3746 cf_goto_bottom_frame(void)
3748 /* Find and select */
3749 packet_list_select_last_row();
3750 return TRUE
; /* we got to that packet */
3754 * Go to frame specified by currently selected protocol tree item.
3757 cf_goto_framenum(capture_file
*cf
)
3759 header_field_info
*hfinfo
;
3762 if (cf
->finfo_selected
) {
3763 hfinfo
= cf
->finfo_selected
->hfinfo
;
3765 if (hfinfo
->type
== FT_FRAMENUM
) {
3766 framenum
= fvalue_get_uinteger(&cf
->finfo_selected
->value
);
3768 return cf_goto_frame(cf
, framenum
);
3775 /* Select the packet on a given row. */
3777 cf_select_packet(capture_file
*cf
, int row
)
3779 epan_dissect_t
*old_edt
;
3782 /* Get the frame data struct pointer for this frame */
3783 fdata
= packet_list_get_row_data(row
);
3785 if (fdata
== NULL
) {
3786 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3787 the first entry is added to it by "real_insert_row()", that row
3788 is selected (see "real_insert_row()", in "ui/gtk/gtkclist.c", in both
3789 our version and the vanilla GTK+ version).
3791 This means that a "select-row" signal is emitted; this causes
3792 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3795 "cf_select_packet()" fetches, above, the data associated with the
3796 row that was selected; however, as "gtk_clist_append()", which
3797 called "real_insert_row()", hasn't yet returned, we haven't yet
3798 associated any data with that row, so we get back a null pointer.
3800 We can't assume that there's only one frame in the frame list,
3801 either, as we may be filtering the display.
3803 We therefore assume that, if "row" is 0, i.e. the first row
3804 is being selected, and "cf->first_displayed" equals
3805 "cf->last_displayed", i.e. there's only one frame being
3806 displayed, that frame is the frame we want.
3808 This means we have to set "cf->first_displayed" and
3809 "cf->last_displayed" before adding the row to the
3810 GtkCList; see the comment in "add_packet_to_packet_list()". */
3812 if (row
== 0 && cf
->first_displayed
== cf
->last_displayed
)
3813 fdata
= frame_data_sequence_find(cf
->frames
, cf
->first_displayed
);
3816 /* If fdata _still_ isn't set simply give up. */
3817 if (fdata
== NULL
) {
3821 /* Get the data in that frame. */
3822 if (!cf_read_frame (cf
, fdata
)) {
3826 /* Record that this frame is the current frame. */
3827 cf
->current_frame
= fdata
;
3828 cf
->current_row
= row
;
3831 /* Create the logical protocol tree. */
3832 /* We don't need the columns here. */
3833 cf
->edt
= epan_dissect_new(cf
->epan
, TRUE
, TRUE
);
3835 tap_build_interesting(cf
->edt
);
3836 epan_dissect_run(cf
->edt
, &cf
->phdr
, frame_tvbuff_new_buffer(cf
->current_frame
, &cf
->buf
),
3837 cf
->current_frame
, NULL
);
3839 dfilter_macro_build_ftv_cache(cf
->edt
->tree
);
3841 cf_callback_invoke(cf_cb_packet_selected
, cf
);
3843 if (old_edt
!= NULL
)
3844 epan_dissect_free(old_edt
);
3848 /* Unselect the selected packet, if any. */
3850 cf_unselect_packet(capture_file
*cf
)
3852 epan_dissect_t
*old_edt
= cf
->edt
;
3856 /* No packet is selected. */
3857 cf
->current_frame
= NULL
;
3858 cf
->current_row
= 0;
3860 cf_callback_invoke(cf_cb_packet_unselected
, cf
);
3862 /* No protocol tree means no selected field. */
3863 cf_unselect_field(cf
);
3865 /* Destroy the epan_dissect_t for the unselected packet. */
3866 if (old_edt
!= NULL
)
3867 epan_dissect_free(old_edt
);
3870 /* Unset the selected protocol tree field, if any. */
3872 cf_unselect_field(capture_file
*cf
)
3874 cf
->finfo_selected
= NULL
;
3876 cf_callback_invoke(cf_cb_field_unselected
, cf
);
3880 * Mark a particular frame.
3883 cf_mark_frame(capture_file
*cf
, frame_data
*frame
)
3885 if (! frame
->flags
.marked
) {
3886 frame
->flags
.marked
= TRUE
;
3887 if (cf
->count
> cf
->marked_count
)
3893 * Unmark a particular frame.
3896 cf_unmark_frame(capture_file
*cf
, frame_data
*frame
)
3898 if (frame
->flags
.marked
) {
3899 frame
->flags
.marked
= FALSE
;
3900 if (cf
->marked_count
> 0)
3906 * Ignore a particular frame.
3909 cf_ignore_frame(capture_file
*cf
, frame_data
*frame
)
3911 if (! frame
->flags
.ignored
) {
3912 frame
->flags
.ignored
= TRUE
;
3913 if (cf
->count
> cf
->ignored_count
)
3914 cf
->ignored_count
++;
3919 * Un-ignore a particular frame.
3922 cf_unignore_frame(capture_file
*cf
, frame_data
*frame
)
3924 if (frame
->flags
.ignored
) {
3925 frame
->flags
.ignored
= FALSE
;
3926 if (cf
->ignored_count
> 0)
3927 cf
->ignored_count
--;
3932 * Read the comment in SHB block
3936 cf_read_shb_comment(capture_file
*cf
)
3938 wtapng_section_t
*shb_inf
;
3939 const gchar
*temp_str
;
3941 /* Get info from SHB */
3942 shb_inf
= wtap_file_get_shb_info(cf
->wth
);
3943 if (shb_inf
== NULL
)
3945 temp_str
= shb_inf
->opt_comment
;
3953 cf_update_capture_comment(capture_file
*cf
, gchar
*comment
)
3955 wtapng_section_t
*shb_inf
;
3957 /* Get info from SHB */
3958 shb_inf
= wtap_file_get_shb_info(cf
->wth
);
3960 /* See if the comment has changed or not */
3961 if (shb_inf
&& shb_inf
->opt_comment
) {
3962 if (strcmp(shb_inf
->opt_comment
, comment
) == 0) {
3971 /* The comment has changed, let's update it */
3972 wtap_write_shb_comment(cf
->wth
, comment
);
3973 /* Mark the file as having unsaved changes */
3974 cf
->unsaved_changes
= TRUE
;
3978 cf_get_user_packet_comment(capture_file
*cf
, const frame_data
*fd
)
3980 if (cf
->frames_user_comments
)
3981 return (const char *)g_tree_lookup(cf
->frames_user_comments
, fd
);
3988 cf_get_comment(capture_file
*cf
, const frame_data
*fd
)
3990 /* fetch user comment */
3991 if (fd
->flags
.has_user_comment
)
3992 return g_strdup(cf_get_user_packet_comment(cf
, fd
));
3994 /* fetch phdr comment */
3995 if (fd
->flags
.has_phdr_comment
) {
3996 struct wtap_pkthdr phdr
; /* Packet header */
3997 Buffer buf
; /* Packet data */
3999 phdr
.opt_comment
= NULL
;
4001 buffer_init(&buf
, 1500);
4002 if (!cf_read_frame_r(cf
, fd
, &phdr
, &buf
))
4003 { /* XXX, what we can do here? */ }
4006 return phdr
.opt_comment
;
4012 frame_cmp(gconstpointer a
, gconstpointer b
, gpointer user_data _U_
)
4014 const frame_data
*fdata1
= (const frame_data
*) a
;
4015 const frame_data
*fdata2
= (const frame_data
*) b
;
4017 return (fdata1
->num
< fdata2
->num
) ? -1 :
4018 (fdata1
->num
> fdata2
->num
) ? 1 :
4023 cf_set_user_packet_comment(capture_file
*cf
, frame_data
*fd
, const gchar
*new_comment
)
4025 char *pkt_comment
= cf_get_comment(cf
, fd
);
4027 /* Check if the comment has changed */
4028 if (!g_strcmp0(pkt_comment
, new_comment
)) {
4029 g_free(pkt_comment
);
4032 g_free(pkt_comment
);
4035 cf
->packet_comment_count
--;
4038 cf
->packet_comment_count
++;
4040 fd
->flags
.has_user_comment
= TRUE
;
4042 if (!cf
->frames_user_comments
)
4043 cf
->frames_user_comments
= g_tree_new_full(frame_cmp
, NULL
, NULL
, g_free
);
4045 /* insert new packet comment */
4046 g_tree_replace(cf
->frames_user_comments
, fd
, g_strdup(new_comment
));
4048 expert_update_comment_count(cf
->packet_comment_count
);
4050 /* OK, we have unsaved changes. */
4051 cf
->unsaved_changes
= TRUE
;
4056 * What types of comments does this capture file have?
4059 cf_comment_types(capture_file
*cf
)
4061 guint32 comment_types
= 0;
4063 if (cf_read_shb_comment(cf
) != NULL
)
4064 comment_types
|= WTAP_COMMENT_PER_SECTION
;
4065 if (cf
->packet_comment_count
!= 0)
4066 comment_types
|= WTAP_COMMENT_PER_PACKET
;
4067 return comment_types
;
4074 } save_callback_args_t
;
4077 * Save a capture to a file, in a particular format, saving either
4078 * all packets, all currently-displayed packets, or all marked packets.
4080 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
4081 * up a message box for the failure.
4084 save_packet(capture_file
*cf _U_
, frame_data
*fdata
,
4085 struct wtap_pkthdr
*phdr
, const guint8
*pd
,
4088 save_callback_args_t
*args
= (save_callback_args_t
*)argsp
;
4089 struct wtap_pkthdr hdr
;
4091 gchar
*display_basename
;
4092 const char *pkt_comment
;
4094 if (fdata
->flags
.has_user_comment
)
4095 pkt_comment
= cf_get_user_packet_comment(cf
, fdata
);
4097 pkt_comment
= phdr
->opt_comment
;
4099 /* init the wtap header for saving */
4100 /* TODO: reuse phdr */
4101 /* XXX - these are the only flags that correspond to data that we have
4102 in the frame_data structure and that matter on a per-packet basis.
4104 For WTAP_HAS_CAP_LEN, either the file format has separate "captured"
4105 and "on the wire" lengths, or it doesn't.
4107 For WTAP_HAS_DROP_COUNT, Wiretap doesn't actually supply the value
4110 For WTAP_HAS_PACK_FLAGS, we currently don't save the FCS length
4111 from the packet flags. */
4112 hdr
.presence_flags
= 0;
4113 if (fdata
->flags
.has_ts
)
4114 hdr
.presence_flags
|= WTAP_HAS_TS
;
4115 if (phdr
->presence_flags
& WTAP_HAS_INTERFACE_ID
)
4116 hdr
.presence_flags
|= WTAP_HAS_INTERFACE_ID
;
4117 if (phdr
->presence_flags
& WTAP_HAS_PACK_FLAGS
)
4118 hdr
.presence_flags
|= WTAP_HAS_PACK_FLAGS
;
4119 hdr
.ts
.secs
= fdata
->abs_ts
.secs
;
4120 hdr
.ts
.nsecs
= fdata
->abs_ts
.nsecs
;
4121 hdr
.caplen
= fdata
->cap_len
;
4122 hdr
.len
= fdata
->pkt_len
;
4123 hdr
.pkt_encap
= fdata
->lnk_t
;
4125 hdr
.interface_id
= phdr
->interface_id
; /* identifier of the interface. */
4127 hdr
.pack_flags
= phdr
->pack_flags
;
4128 hdr
.opt_comment
= g_strdup(pkt_comment
);
4131 hdr
.pseudo_header
= phdr
->pseudo_header
;
4134 hdr
.pack_flags
= /* XXX - 0 for now (any value for "we don't have it"?) */
4136 /* and save the packet */
4137 if (!wtap_dump(args
->pdh
, &hdr
, pd
, &err
)) {
4139 /* Wiretap error. */
4142 case WTAP_ERR_UNSUPPORTED_ENCAP
:
4144 * This is a problem with the particular frame we're writing;
4145 * note that, and give the frame number.
4147 simple_error_message_box(
4148 "Frame %u has a network type that can't be saved in a \"%s\" file.",
4149 fdata
->num
, wtap_file_type_subtype_string(args
->file_type
));
4153 display_basename
= g_filename_display_basename(args
->fname
);
4154 simple_error_message_box(
4155 "An error occurred while writing to the file \"%s\": %s.",
4156 display_basename
, wtap_strerror(err
));
4157 g_free(display_basename
);
4162 write_failure_alert_box(args
->fname
, err
);
4167 g_free(hdr
.opt_comment
);
4172 * Can this capture file be written out in any format using Wiretap
4173 * rather than by copying the raw data?
4176 cf_can_write_with_wiretap(capture_file
*cf
)
4178 /* We don't care whether we support the comments in this file or not;
4179 if we can't, we'll offer the user the option of discarding the
4181 return wtap_dump_can_write(cf
->linktypes
, 0);
4185 * Should we let the user do a save?
4189 * the file has unsaved changes, and we can save it in some
4190 * format through Wiretap
4194 * the file is a temporary file and has no unsaved changes (so
4195 * that "saving" it just means copying it).
4197 * XXX - we shouldn't allow files to be edited if they can't be saved,
4198 * so cf->unsaved_changes should be true only if the file can be saved.
4200 * We don't care whether we support the comments in this file or not;
4201 * if we can't, we'll offer the user the option of discarding the
4205 cf_can_save(capture_file
*cf
)
4207 if (cf
->unsaved_changes
&& wtap_dump_can_write(cf
->linktypes
, 0)) {
4208 /* Saved changes, and we can write it out with Wiretap. */
4212 if (cf
->is_tempfile
&& !cf
->unsaved_changes
) {
4214 * Temporary file with no unsaved changes, so we can just do a
4220 /* Nothing to save. */
4225 * Should we let the user do a "save as"?
4229 * we can save it in some format through Wiretap
4233 * the file is a temporary file and has no unsaved changes (so
4234 * that "saving" it just means copying it).
4236 * XXX - we shouldn't allow files to be edited if they can't be saved,
4237 * so cf->unsaved_changes should be true only if the file can be saved.
4239 * We don't care whether we support the comments in this file or not;
4240 * if we can't, we'll offer the user the option of discarding the
4244 cf_can_save_as(capture_file
*cf
)
4246 if (wtap_dump_can_write(cf
->linktypes
, 0)) {
4247 /* We can write it out with Wiretap. */
4251 if (cf
->is_tempfile
&& !cf
->unsaved_changes
) {
4253 * Temporary file with no unsaved changes, so we can just do a
4259 /* Nothing to save. */
4264 * Does this file have unsaved data?
4267 cf_has_unsaved_data(capture_file
*cf
)
4270 * If this is a temporary file, or a file with unsaved changes, it
4273 return cf
->is_tempfile
|| cf
->unsaved_changes
;
4277 * Quick scan to find packet offsets.
4279 static cf_read_status_t
4280 rescan_file(capture_file
*cf
, const char *fname
, gboolean is_tempfile
, int *err
)
4282 const struct wtap_pkthdr
*phdr
;
4287 progdlg_t
*progbar
= NULL
;
4291 GTimeVal start_time
;
4292 gchar status_str
[100];
4293 gint64 progbar_nextstep
;
4294 gint64 progbar_quantum
;
4299 int displayed_once
= 0;
4302 /* Close the old handle. */
4303 wtap_close(cf
->wth
);
4305 /* Open the new file. */
4306 cf
->wth
= wtap_open_offline(fname
, err
, &err_info
, TRUE
);
4307 if (cf
->wth
== NULL
) {
4308 cf_open_failure_alert_box(fname
, *err
, err_info
, FALSE
, 0);
4309 return CF_READ_ERROR
;
4312 /* We're scanning a file whose contents should be the same as what
4313 we had before, so we don't discard dissection state etc.. */
4316 /* Set the file name because we need it to set the follow stream filter.
4317 XXX - is that still true? We need it for other reasons, though,
4319 cf
->filename
= g_strdup(fname
);
4321 /* Indicate whether it's a permanent or temporary file. */
4322 cf
->is_tempfile
= is_tempfile
;
4324 /* No user changes yet. */
4325 cf
->unsaved_changes
= FALSE
;
4327 cf
->cd_t
= wtap_file_type_subtype(cf
->wth
);
4328 cf
->linktypes
= g_array_sized_new(FALSE
, FALSE
, (guint
) sizeof(int), 1);
4330 cf
->snap
= wtap_snapshot_length(cf
->wth
);
4331 if (cf
->snap
== 0) {
4332 /* Snapshot length not known. */
4333 cf
->has_snap
= FALSE
;
4334 cf
->snap
= WTAP_MAX_PACKET_SIZE
;
4336 cf
->has_snap
= TRUE
;
4338 name_ptr
= g_filename_display_basename(cf
->filename
);
4340 cf_callback_invoke(cf_cb_file_rescan_started
, cf
);
4342 /* Record whether the file is compressed.
4343 XXX - do we know this at open time? */
4344 cf
->iscompressed
= wtap_iscompressed(cf
->wth
);
4346 /* Find the size of the file. */
4347 size
= wtap_file_size(cf
->wth
, NULL
);
4349 /* Update the progress bar when it gets to this value. */
4350 progbar_nextstep
= 0;
4351 /* When we reach the value that triggers a progress bar update,
4352 bump that value by this amount. */
4354 progbar_quantum
= size
/N_PROGBAR_UPDATES
;
4355 if (progbar_quantum
< MIN_QUANTUM
)
4356 progbar_quantum
= MIN_QUANTUM
;
4358 progbar_quantum
= 0;
4361 g_get_current_time(&start_time
);
4364 phdr
= wtap_phdr(cf
->wth
);
4365 while ((wtap_read(cf
->wth
, err
, &err_info
, &data_offset
))) {
4367 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
4368 fdata
->file_off
= data_offset
;
4371 file_pos
= wtap_read_so_far(cf
->wth
);
4373 /* Create the progress bar if necessary.
4374 * Check whether it should be created or not every MIN_NUMBER_OF_PACKET
4376 if ((progbar
== NULL
) && !(count
% MIN_NUMBER_OF_PACKET
)) {
4377 progbar_val
= calc_progbar_val(cf
, size
, file_pos
, status_str
, sizeof(status_str
));
4378 progbar
= delayed_create_progress_dlg(cf
->window
, "Rescanning", name_ptr
,
4379 TRUE
, &stop_flag
, &start_time
, progbar_val
);
4382 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
4383 when we update it, we have to run the GTK+ main loop to get it
4384 to repaint what's pending, and doing so may involve an "ioctl()"
4385 to see if there's any pending input from an X server, and doing
4386 that for every packet can be costly, especially on a big file. */
4387 if (file_pos
>= progbar_nextstep
) {
4388 if (progbar
!= NULL
) {
4389 progbar_val
= calc_progbar_val(cf
, size
, file_pos
, status_str
, sizeof(status_str
));
4390 /* update the packet bar content on the first run or frequently on very large files */
4392 if (progbar_quantum
> 500000 || displayed_once
== 0) {
4393 if ((auto_scroll_live
|| displayed_once
== 0 || cf
->displayed_count
< 1000) && cf
->count
!= 0) {
4395 packets_bar_update();
4398 #endif /* HAVE_LIBPCAP */
4399 update_progress_dlg(progbar
, progbar_val
, status_str
);
4401 progbar_nextstep
+= progbar_quantum
;
4406 /* Well, the user decided to abort the rescan. Sadly, as this
4407 isn't a reread, recovering is difficult, so we'll just
4408 close the current capture. */
4412 /* Add this packet's link-layer encapsulation type to cf->linktypes, if
4413 it's not already there.
4414 XXX - yes, this is O(N), so if every packet had a different
4415 link-layer encapsulation type, it'd be O(N^2) to read the file, but
4416 there are probably going to be a small number of encapsulation types
4418 cf_add_encapsulation_type(cf
, phdr
->pkt_encap
);
4421 /* Free the display name */
4424 /* We're done reading the file; destroy the progress bar if it was created. */
4425 if (progbar
!= NULL
)
4426 destroy_progress_dlg(progbar
);
4428 /* We're done reading sequentially through the file. */
4429 cf
->state
= FILE_READ_DONE
;
4431 /* Close the sequential I/O side, to free up memory it requires. */
4432 wtap_sequential_close(cf
->wth
);
4434 /* compute the time it took to load the file */
4435 compute_elapsed(cf
, &start_time
);
4437 /* Set the file encapsulation type now; we don't know what it is until
4438 we've looked at all the packets, as we don't know until then whether
4439 there's more than one type (and thus whether it's
4440 WTAP_ENCAP_PER_PACKET). */
4441 cf
->lnk_t
= wtap_file_encap(cf
->wth
);
4443 cf_callback_invoke(cf_cb_file_rescan_finished
, cf
);
4446 /* Our caller will give up at this point. */
4447 return CF_READ_ABORTED
;
4451 /* Put up a message box noting that the read failed somewhere along
4452 the line. Don't throw out the stuff we managed to read, though,
4456 case WTAP_ERR_UNSUPPORTED
:
4457 simple_error_message_box(
4458 "The capture file contains record data that Wireshark doesn't support.\n(%s)",
4463 case WTAP_ERR_UNSUPPORTED_ENCAP
:
4464 simple_error_message_box(
4465 "The capture file has a packet with a network type that Wireshark doesn't support.\n(%s)",
4470 case WTAP_ERR_CANT_READ
:
4471 simple_error_message_box(
4472 "An attempt to read from the capture file failed for"
4473 " some unknown reason.");
4476 case WTAP_ERR_SHORT_READ
:
4477 simple_error_message_box(
4478 "The capture file appears to have been cut short"
4479 " in the middle of a packet.");
4482 case WTAP_ERR_BAD_FILE
:
4483 simple_error_message_box(
4484 "The capture file appears to be damaged or corrupt.\n(%s)",
4489 case WTAP_ERR_DECOMPRESS
:
4490 simple_error_message_box(
4491 "The compressed capture file appears to be damaged or corrupt.\n"
4497 simple_error_message_box(
4498 "An error occurred while reading the"
4499 " capture file: %s.", wtap_strerror(*err
));
4502 return CF_READ_ERROR
;
4508 cf_save_packets(capture_file
*cf
, const char *fname
, guint save_format
,
4509 gboolean compressed
, gboolean discard_comments
,
4510 gboolean dont_reopen
)
4513 gchar
*fname_new
= NULL
;
4516 addrinfo_lists_t
*addr_lists
;
4520 gchar
*display_basename
;
4527 save_callback_args_t callback_args
;
4529 cf_callback_invoke(cf_cb_file_save_started
, (gpointer
)fname
);
4531 addr_lists
= get_addrinfo_list();
4533 if (save_format
== cf
->cd_t
&& compressed
== cf
->iscompressed
4534 && !discard_comments
&& !cf
->unsaved_changes
4535 && !(addr_lists
&& wtap_dump_has_name_resolution(save_format
))) {
4536 /* We're saving in the format it's already in, and we're
4537 not discarding comments, and there are no changes we have
4538 in memory that aren't saved to the file, and we have no name
4539 resolution blocks to write, so we can just move or copy the raw data. */
4541 if (cf
->is_tempfile
) {
4542 /* The file being saved is a temporary file from a live
4543 capture, so it doesn't need to stay around under that name;
4544 first, try renaming the capture buffer file to the new name.
4545 This acts as a "safe save", in that, if the file already
4546 exists, the existing file will be removed only if the rename
4549 Sadly, on Windows, as we have the current capture file
4550 open, even MoveFileEx() with MOVEFILE_REPLACE_EXISTING
4551 (to cause the rename to remove an existing target), as
4552 done by ws_stdio_rename() (ws_rename() is #defined to
4553 be ws_stdio_rename() on Windows) will fail.
4555 According to the MSDN documentation for CreateFile(), if,
4556 when we open a capture file, we were to directly do a CreateFile(),
4557 opening with FILE_SHARE_DELETE|FILE_SHARE_READ, and then
4558 convert it to a file descriptor with _open_osfhandle(),
4559 that would allow the file to be renamed out from under us.
4561 However, that doesn't work in practice. Perhaps the problem
4562 is that the process doing the rename is the process that
4563 has the file open. */
4565 if (ws_rename(cf
->filename
, fname
) == 0) {
4566 /* That succeeded - there's no need to copy the source file. */
4567 how_to_save
= SAVE_WITH_MOVE
;
4569 if (errno
== EXDEV
) {
4570 /* They're on different file systems, so we have to copy the
4572 how_to_save
= SAVE_WITH_COPY
;
4574 /* The rename failed, but not because they're on different
4575 file systems - put up an error message. (Or should we
4576 just punt and try to copy? The only reason why I'd
4577 expect the rename to fail and the copy to succeed would
4578 be if we didn't have permission to remove the file from
4579 the temporary directory, and that might be fixable - but
4580 is it worth requiring the user to go off and fix it?) */
4581 cf_rename_failure_alert_box(fname
, errno
);
4586 how_to_save
= SAVE_WITH_COPY
;
4589 /* It's a permanent file, so we should copy it, and not remove the
4591 how_to_save
= SAVE_WITH_COPY
;
4594 if (how_to_save
== SAVE_WITH_COPY
) {
4595 /* Copy the file, if we haven't moved it. If we're overwriting
4596 an existing file, we do it with a "safe save", by writing
4597 to a new file and, if the write succeeds, renaming the
4598 new file on top of the old file. */
4599 if (file_exists(fname
)) {
4600 fname_new
= g_strdup_printf("%s~", fname
);
4601 if (!copy_file_binary_mode(cf
->filename
, fname_new
))
4604 if (!copy_file_binary_mode(cf
->filename
, fname
))
4609 /* Either we're saving in a different format or we're saving changes,
4610 such as added, modified, or removed comments, that haven't yet
4611 been written to the underlying file; we can't do that by copying
4612 or moving the capture file, we have to do it by writing the packets
4615 wtapng_section_t
*shb_hdr
= NULL
;
4616 wtapng_iface_descriptions_t
*idb_inf
= NULL
;
4619 shb_hdr
= wtap_file_get_shb_info(cf
->wth
);
4620 idb_inf
= wtap_file_get_idb_info(cf
->wth
);
4622 /* Determine what file encapsulation type we should use. */
4623 encap
= wtap_dump_file_encap_type(cf
->linktypes
);
4625 if (file_exists(fname
)) {
4626 /* We're overwriting an existing file; write out to a new file,
4627 and, if that succeeds, rename the new file on top of the
4628 old file. That makes this a "safe save", so that we don't
4629 lose the old file if we have a problem writing out the new
4630 file. (If the existing file is the current capture file,
4631 we *HAVE* to do that, otherwise we're overwriting the file
4632 from which we're reading the packets that we're writing!) */
4633 fname_new
= g_strdup_printf("%s~", fname
);
4634 pdh
= wtap_dump_open_ng(fname_new
, save_format
, encap
, cf
->snap
,
4635 compressed
, shb_hdr
, idb_inf
, &err
);
4637 pdh
= wtap_dump_open_ng(fname
, save_format
, encap
, cf
->snap
,
4638 compressed
, shb_hdr
, idb_inf
, &err
);
4644 cf_open_failure_alert_box(fname
, err
, NULL
, TRUE
, save_format
);
4648 /* Add address resolution */
4649 wtap_dump_set_addrinfo_list(pdh
, addr_lists
);
4651 /* Iterate through the list of packets, processing all the packets. */
4652 callback_args
.pdh
= pdh
;
4653 callback_args
.fname
= fname
;
4654 callback_args
.file_type
= save_format
;
4655 switch (process_specified_packets(cf
, NULL
, "Saving", "packets",
4656 TRUE
, save_packet
, &callback_args
)) {
4659 /* Completed successfully. */
4663 /* The user decided to abort the saving.
4664 If we're writing to a temporary file, remove it.
4665 XXX - should we do so even if we're not writing to a
4667 wtap_dump_close(pdh
, &err
);
4668 if (fname_new
!= NULL
)
4669 ws_unlink(fname_new
);
4670 cf_callback_invoke(cf_cb_file_save_stopped
, NULL
);
4671 return CF_WRITE_ABORTED
;
4674 /* Error while saving.
4675 If we're writing to a temporary file, remove it. */
4676 if (fname_new
!= NULL
)
4677 ws_unlink(fname_new
);
4678 wtap_dump_close(pdh
, &err
);
4682 if (!wtap_dump_close(pdh
, &err
)) {
4683 cf_close_failure_alert_box(fname
, err
);
4687 how_to_save
= SAVE_WITH_WTAP
;
4690 if (fname_new
!= NULL
) {
4691 /* We wrote out to fname_new, and should rename it on top of
4692 fname. fname_new is now closed, so that should be possible even
4693 on Windows. However, on Windows, we first need to close whatever
4694 file descriptors we have open for fname. */
4696 wtap_fdclose(cf
->wth
);
4698 /* Now do the rename. */
4699 if (ws_rename(fname_new
, fname
) == -1) {
4700 /* Well, the rename failed. */
4701 cf_rename_failure_alert_box(fname
, errno
);
4703 /* Attempt to reopen the random file descriptor using the
4704 current file's filename. (At this point, the sequential
4705 file descriptor is closed.) */
4706 if (!wtap_fdreopen(cf
->wth
, cf
->filename
, &err
)) {
4707 /* Oh, well, we're screwed. */
4708 display_basename
= g_filename_display_basename(cf
->filename
);
4709 simple_error_message_box(
4710 file_open_error_message(err
, FALSE
), display_basename
);
4711 g_free(display_basename
);
4718 cf_callback_invoke(cf_cb_file_save_finished
, NULL
);
4719 cf
->unsaved_changes
= FALSE
;
4722 switch (how_to_save
) {
4724 case SAVE_WITH_MOVE
:
4725 /* We just moved the file, so the wtap structure refers to the
4726 new file, and all the information other than the filename
4727 and the "is temporary" status applies to the new file; just
4729 g_free(cf
->filename
);
4730 cf
->filename
= g_strdup(fname
);
4731 cf
->is_tempfile
= FALSE
;
4732 cf_callback_invoke(cf_cb_file_fast_save_finished
, cf
);
4735 case SAVE_WITH_COPY
:
4736 /* We just copied the file, s all the information other than
4737 the wtap structure, the filename, and the "is temporary"
4738 status applies to the new file; just update that. */
4739 wtap_close(cf
->wth
);
4740 cf
->wth
= wtap_open_offline(fname
, &err
, &err_info
, TRUE
);
4741 if (cf
->wth
== NULL
) {
4742 cf_open_failure_alert_box(fname
, err
, err_info
, FALSE
, 0);
4745 g_free(cf
->filename
);
4746 cf
->filename
= g_strdup(fname
);
4747 cf
->is_tempfile
= FALSE
;
4749 cf_callback_invoke(cf_cb_file_fast_save_finished
, cf
);
4752 case SAVE_WITH_WTAP
:
4753 /* Open and read the file we saved to.
4755 XXX - this is somewhat of a waste; we already have the
4756 packets, all this gets us is updated file type information
4757 (which we could just stuff into "cf"), and having the new
4758 file be the one we have opened and from which we're reading
4759 the data, and it means we have to spend time opening and
4760 reading the file, which could be a significant amount of
4761 time if the file is large.
4763 If the capture-file-writing code were to return the
4764 seek offset of each packet it writes, we could save that
4765 in the frame_data structure for the frame, and just open
4766 the file without reading it again...
4768 ...as long as, for gzipped files, the process of writing
4769 out the file *also* generates the information needed to
4770 support fast random access to the compressed file. */
4771 if (rescan_file(cf
, fname
, FALSE
, &err
) != CF_READ_OK
) {
4772 /* The rescan failed; just close the file. Either
4773 a dialog was popped up for the failure, so the
4774 user knows what happened, or they stopped the
4775 rescan, in which case they know what happened. */
4781 /* If we were told to discard the comments, do so. */
4782 if (discard_comments
) {
4783 /* Remove SHB comment, if any. */
4784 wtap_write_shb_comment(cf
->wth
, NULL
);
4786 /* remove all user comments */
4787 for (framenum
= 1; framenum
<= cf
->count
; framenum
++) {
4788 fdata
= frame_data_sequence_find(cf
->frames
, framenum
);
4790 fdata
->flags
.has_phdr_comment
= FALSE
;
4791 fdata
->flags
.has_user_comment
= FALSE
;
4794 if (cf
->frames_user_comments
) {
4795 g_tree_destroy(cf
->frames_user_comments
);
4796 cf
->frames_user_comments
= NULL
;
4799 cf
->packet_comment_count
= 0;
4805 if (fname_new
!= NULL
) {
4806 /* We were trying to write to a temporary file; get rid of it if it
4807 exists. (We don't care whether this fails, as, if it fails,
4808 there's not much we can do about it. I guess if it failed for
4809 a reason other than "it doesn't exist", we could report an
4810 error, so the user knows there's a junk file that they might
4811 want to clean up.) */
4812 ws_unlink(fname_new
);
4815 cf_callback_invoke(cf_cb_file_save_failed
, NULL
);
4816 return CF_WRITE_ERROR
;
4820 cf_export_specified_packets(capture_file
*cf
, const char *fname
,
4821 packet_range_t
*range
, guint save_format
,
4822 gboolean compressed
)
4824 gchar
*fname_new
= NULL
;
4827 save_callback_args_t callback_args
;
4828 wtapng_section_t
*shb_hdr
;
4829 wtapng_iface_descriptions_t
*idb_inf
;
4832 cf_callback_invoke(cf_cb_file_export_specified_packets_started
, (gpointer
)fname
);
4834 packet_range_process_init(range
);
4836 /* We're writing out specified packets from the specified capture
4837 file to another file. Even if all captured packets are to be
4838 written, don't special-case the operation - read each packet
4839 and then write it out if it's one of the specified ones. */
4841 shb_hdr
= wtap_file_get_shb_info(cf
->wth
);
4842 idb_inf
= wtap_file_get_idb_info(cf
->wth
);
4844 /* Determine what file encapsulation type we should use. */
4845 encap
= wtap_dump_file_encap_type(cf
->linktypes
);
4847 if (file_exists(fname
)) {
4848 /* We're overwriting an existing file; write out to a new file,
4849 and, if that succeeds, rename the new file on top of the
4850 old file. That makes this a "safe save", so that we don't
4851 lose the old file if we have a problem writing out the new
4852 file. (If the existing file is the current capture file,
4853 we *HAVE* to do that, otherwise we're overwriting the file
4854 from which we're reading the packets that we're writing!) */
4855 fname_new
= g_strdup_printf("%s~", fname
);
4856 pdh
= wtap_dump_open_ng(fname_new
, save_format
, encap
, cf
->snap
,
4857 compressed
, shb_hdr
, idb_inf
, &err
);
4859 pdh
= wtap_dump_open_ng(fname
, save_format
, encap
, cf
->snap
,
4860 compressed
, shb_hdr
, idb_inf
, &err
);
4866 cf_open_failure_alert_box(fname
, err
, NULL
, TRUE
, save_format
);
4870 /* Add address resolution */
4871 wtap_dump_set_addrinfo_list(pdh
, get_addrinfo_list());
4873 /* Iterate through the list of packets, processing the packets we were
4876 XXX - we've already called "packet_range_process_init(range)", but
4877 "process_specified_packets()" will do it again. Fortunately,
4878 that's harmless in this case, as we haven't done anything to
4879 "range" since we initialized it. */
4880 callback_args
.pdh
= pdh
;
4881 callback_args
.fname
= fname
;
4882 callback_args
.file_type
= save_format
;
4883 switch (process_specified_packets(cf
, range
, "Writing", "specified packets",
4884 TRUE
, save_packet
, &callback_args
)) {
4887 /* Completed successfully. */
4891 /* The user decided to abort the saving.
4892 If we're writing to a temporary file, remove it.
4893 XXX - should we do so even if we're not writing to a
4895 wtap_dump_close(pdh
, &err
);
4896 if (fname_new
!= NULL
)
4897 ws_unlink(fname_new
);
4898 cf_callback_invoke(cf_cb_file_export_specified_packets_stopped
, NULL
);
4899 return CF_WRITE_ABORTED
;
4903 /* Error while saving.
4904 If we're writing to a temporary file, remove it. */
4905 if (fname_new
!= NULL
)
4906 ws_unlink(fname_new
);
4907 wtap_dump_close(pdh
, &err
);
4911 if (!wtap_dump_close(pdh
, &err
)) {
4912 cf_close_failure_alert_box(fname
, err
);
4916 if (fname_new
!= NULL
) {
4917 /* We wrote out to fname_new, and should rename it on top of
4918 fname; fname is now closed, so that should be possible even
4919 on Windows. Do the rename. */
4920 if (ws_rename(fname_new
, fname
) == -1) {
4921 /* Well, the rename failed. */
4922 cf_rename_failure_alert_box(fname
, errno
);
4927 cf_callback_invoke(cf_cb_file_export_specified_packets_finished
, NULL
);
4931 if (fname_new
!= NULL
) {
4932 /* We were trying to write to a temporary file; get rid of it if it
4933 exists. (We don't care whether this fails, as, if it fails,
4934 there's not much we can do about it. I guess if it failed for
4935 a reason other than "it doesn't exist", we could report an
4936 error, so the user knows there's a junk file that they might
4937 want to clean up.) */
4938 ws_unlink(fname_new
);
4941 cf_callback_invoke(cf_cb_file_export_specified_packets_failed
, NULL
);
4942 return CF_WRITE_ERROR
;
4946 cf_open_failure_alert_box(const char *filename
, int err
, gchar
*err_info
,
4947 gboolean for_writing
, int file_type
)
4949 gchar
*display_basename
;
4952 /* Wiretap error. */
4953 display_basename
= g_filename_display_basename(filename
);
4956 case WTAP_ERR_NOT_REGULAR_FILE
:
4957 simple_error_message_box(
4958 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
4962 case WTAP_ERR_RANDOM_OPEN_PIPE
:
4963 /* Seen only when opening a capture file for reading. */
4964 simple_error_message_box(
4965 "The file \"%s\" is a pipe or FIFO; Wireshark can't read pipe or FIFO files.\n"
4966 "To capture from a pipe or FIFO use wireshark -i -",
4970 case WTAP_ERR_FILE_UNKNOWN_FORMAT
:
4971 /* Seen only when opening a capture file for reading. */
4972 simple_error_message_box(
4973 "The file \"%s\" isn't a capture file in a format Wireshark understands.",
4977 case WTAP_ERR_UNSUPPORTED
:
4978 /* Seen only when opening a capture file for reading. */
4979 simple_error_message_box(
4980 "The file \"%s\" isn't a capture file in a format Wireshark understands.\n"
4982 display_basename
, err_info
);
4986 case WTAP_ERR_CANT_WRITE_TO_PIPE
:
4987 /* Seen only when opening a capture file for writing. */
4988 simple_error_message_box(
4989 "The file \"%s\" is a pipe, and %s capture files can't be "
4990 "written to a pipe.",
4991 display_basename
, wtap_file_type_subtype_string(file_type
));
4994 case WTAP_ERR_UNSUPPORTED_FILE_TYPE
:
4995 /* Seen only when opening a capture file for writing. */
4996 simple_error_message_box(
4997 "Wireshark doesn't support writing capture files in that format.");
5000 case WTAP_ERR_UNSUPPORTED_ENCAP
:
5002 simple_error_message_box("Wireshark can't save this capture in that format.");
5004 simple_error_message_box(
5005 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.\n"
5007 display_basename
, err_info
);
5012 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED
:
5014 simple_error_message_box(
5015 "Wireshark can't save this capture in that format.");
5017 simple_error_message_box(
5018 "The file \"%s\" is a capture for a network type that Wireshark doesn't support.",
5023 case WTAP_ERR_BAD_FILE
:
5024 /* Seen only when opening a capture file for reading. */
5025 simple_error_message_box(
5026 "The file \"%s\" appears to be damaged or corrupt.\n"
5028 display_basename
, err_info
);
5032 case WTAP_ERR_CANT_OPEN
:
5034 simple_error_message_box(
5035 "The file \"%s\" could not be created for some unknown reason.",
5038 simple_error_message_box(
5039 "The file \"%s\" could not be opened for some unknown reason.",
5044 case WTAP_ERR_SHORT_READ
:
5045 simple_error_message_box(
5046 "The file \"%s\" appears to have been cut short"
5047 " in the middle of a packet or other data.",
5051 case WTAP_ERR_SHORT_WRITE
:
5052 simple_error_message_box(
5053 "A full header couldn't be written to the file \"%s\".",
5057 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED
:
5058 simple_error_message_box(
5059 "This file type cannot be written as a compressed file.");
5062 case WTAP_ERR_DECOMPRESS
:
5063 simple_error_message_box(
5064 "The compressed file \"%s\" appears to be damaged or corrupt.\n"
5065 "(%s)", display_basename
, err_info
);
5070 simple_error_message_box(
5071 "The file \"%s\" could not be %s: %s.",
5073 for_writing
? "created" : "opened",
5074 wtap_strerror(err
));
5077 g_free(display_basename
);
5080 open_failure_alert_box(filename
, err
, for_writing
);
5085 * XXX - whether we mention the source pathname, the target pathname,
5086 * or both depends on the error and on what we find if we look for
5087 * one or both of them.
5090 cf_rename_failure_alert_box(const char *filename
, int err
)
5092 gchar
*display_basename
;
5094 display_basename
= g_filename_display_basename(filename
);
5098 /* XXX - should check whether the source exists and, if not,
5099 report it as the problem and, if so, report the destination
5101 simple_error_message_box("The path to the file \"%s\" doesn't exist.",
5106 /* XXX - if we're doing a rename after a safe save, we should
5107 probably say something else. */
5108 simple_error_message_box("You don't have permission to move the capture file to \"%s\".",
5113 /* XXX - this should probably mention both the source and destination
5115 simple_error_message_box("The file \"%s\" could not be moved: %s.",
5116 display_basename
, wtap_strerror(err
));
5119 g_free(display_basename
);
5122 /* Check for write errors - if the file is being written to an NFS server,
5123 a write error may not show up until the file is closed, as NFS clients
5124 might not send writes to the server until the "write()" call finishes,
5125 so that the write may fail on the server but the "write()" may succeed. */
5127 cf_close_failure_alert_box(const char *filename
, int err
)
5129 gchar
*display_basename
;
5132 /* Wiretap error. */
5133 display_basename
= g_filename_display_basename(filename
);
5136 case WTAP_ERR_CANT_CLOSE
:
5137 simple_error_message_box(
5138 "The file \"%s\" couldn't be closed for some unknown reason.",
5142 case WTAP_ERR_SHORT_WRITE
:
5143 simple_error_message_box(
5144 "Not all the packets could be written to the file \"%s\".",
5149 simple_error_message_box(
5150 "An error occurred while closing the file \"%s\": %s.",
5151 display_basename
, wtap_strerror(err
));
5154 g_free(display_basename
);
5157 We assume that a close error from the OS is really a write error. */
5158 write_failure_alert_box(filename
, err
);
5162 /* Reload the current capture file. */
5164 cf_reload(capture_file
*cf
) {
5166 gboolean is_tempfile
;
5169 /* If the file could be opened, "cf_open()" calls "cf_close()"
5170 to get rid of state for the old capture file before filling in state
5171 for the new capture file. "cf_close()" will remove the file if
5172 it's a temporary file; we don't want that to happen (for one thing,
5173 it'd prevent subsequent reopens from working). Remember whether it's
5174 a temporary file, mark it as not being a temporary file, and then
5175 reopen it as the type of file it was.
5177 Also, "cf_close()" will free "cf->filename", so we must make
5178 a copy of it first. */
5179 filename
= g_strdup(cf
->filename
);
5180 is_tempfile
= cf
->is_tempfile
;
5181 cf
->is_tempfile
= FALSE
;
5182 if (cf_open(cf
, filename
, is_tempfile
, &err
) == CF_OK
) {
5183 switch (cf_read(cf
, TRUE
)) {
5187 /* Just because we got an error, that doesn't mean we were unable
5188 to read any of the file; we handle what we could get from the
5192 case CF_READ_ABORTED
:
5193 /* The user bailed out of re-reading the capture file; the
5194 capture file has been closed - just free the capture file name
5195 string and return (without changing the last containing
5201 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
5202 Instead, the file was left open, so we should restore "cf->is_tempfile"
5205 XXX - change the menu? Presumably "cf_open()" will do that;
5206 make sure it does! */
5207 cf
->is_tempfile
= is_tempfile
;
5209 /* "cf_open()" made a copy of the file name we handed it, so
5210 we should free up our copy. */
5220 * indent-tabs-mode: nil
5223 * ex: set shiftwidth=2 tabstop=8 expandtab:
5224 * :indentSize=2:tabSize=8:noTabs=true: