4 * $Id: file.c,v 1.274 2002/05/23 07:46:58 guy Exp $
6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
47 #ifdef HAVE_SYS_STAT_H
55 #ifdef NEED_SNPRINTF_H
56 # include "snprintf.h"
59 #ifdef NEED_STRERROR_H
63 #ifdef HAVE_SYS_TYPES_H
64 # include <sys/types.h>
67 #ifdef HAVE_NETINET_IN_H
68 # include <netinet/in.h>
71 #include <epan/epan.h>
72 #include <epan/filesystem.h>
76 #include "gtk/color_utils.h"
78 #include <epan/packet.h>
83 #include "simple_dialog.h"
84 #include "progress_dlg.h"
86 #include "statusbar.h"
88 #include "gtk/proto_draw.h"
89 #include "gtk/packet_win.h"
90 #include <epan/dfilter/dfilter.h>
91 #include <epan/conversation.h>
93 #include "gtk/colors.h"
94 #include <epan/epan_dissect.h>
96 extern GtkWidget *packet_list, *byte_nb_ptr, *tree_view;
99 gboolean auto_scroll_live;
102 static guint32 firstsec, firstusec;
103 static guint32 prevsec, prevusec;
105 static void read_packet(capture_file *cf, long offset);
107 static void rescan_packets(capture_file *cf, const char *action,
108 gboolean refilter, gboolean redissect);
110 static void set_selected_row(int row);
112 static void freeze_clist(capture_file *cf);
113 static void thaw_clist(capture_file *cf);
115 static char *file_rename_error_message(int err);
116 static char *file_close_error_message(int err);
117 static gboolean copy_binary_file(char *from_filename, char *to_filename);
119 /* Update the progress bar this many times when reading a file. */
120 #define N_PROGBAR_UPDATES 100
122 /* Number of "frame_data" structures per memory chunk.
123 XXX - is this the right number? */
124 #define FRAME_DATA_CHUNK_SIZE 1024
127 open_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
134 wth = wtap_open_offline(fname, &err, TRUE);
138 /* Find the size of the file. */
140 if (fstat(fd, &cf_stat) < 0) {
146 /* The open succeeded. Close whatever capture file we had open,
147 and fill in the information for this file. */
150 /* Initialize all data structures used for dissection. */
153 /* We're about to start reading the file. */
154 cf->state = FILE_READ_IN_PROGRESS;
158 cf->f_len = cf_stat.st_size;
160 /* Set the file name because we need it to set the follow stream filter.
161 XXX - is that still true? We need it for other reasons, though,
163 cf->filename = g_strdup(fname);
165 /* Indicate whether it's a permanent or temporary file. */
166 cf->is_tempfile = is_tempfile;
168 /* If it's a temporary capture buffer file, mark it as not saved. */
169 cf->user_saved = !is_tempfile;
171 cf->cd_t = wtap_file_type(cf->wth);
173 cf->marked_count = 0;
174 cf->drops_known = FALSE;
178 cf->snap = wtap_snapshot_length(cf->wth);
180 /* Snapshot length not known. */
181 cf->has_snap = FALSE;
182 cf->snap = WTAP_MAX_PACKET_SIZE;
185 cf->progbar_quantum = 0;
186 cf->progbar_nextstep = 0;
187 firstsec = 0, firstusec = 0;
188 prevsec = 0, prevusec = 0;
190 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
192 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
194 g_assert(cf->plist_chunk);
199 simple_dialog(ESD_TYPE_CRIT, NULL,
200 file_open_error_message(err, FALSE), fname);
204 /* Reset everything to a pristine state */
206 close_cap_file(capture_file *cf)
208 /* Die if we're in the middle of reading a file. */
209 g_assert(cf->state != FILE_READ_IN_PROGRESS);
211 /* Destroy all popup packet windows, as they refer to packets in the
212 capture file we're closing. */
213 destroy_packet_wins();
219 /* We have no file open... */
220 if (cf->filename != NULL) {
221 /* If it's a temporary file, remove it. */
223 unlink(cf->filename);
224 g_free(cf->filename);
227 /* ...which means we have nothing to save. */
228 cf->user_saved = FALSE;
230 if (cf->plist_chunk != NULL) {
231 g_mem_chunk_destroy(cf->plist_chunk);
232 cf->plist_chunk = NULL;
234 if (cf->rfcode != NULL) {
235 dfilter_free(cf->rfcode);
239 cf->plist_end = NULL;
240 unselect_packet(cf); /* nothing to select */
241 cf->first_displayed = NULL;
242 cf->last_displayed = NULL;
244 /* Clear the packet list. */
245 gtk_clist_freeze(GTK_CLIST(packet_list));
246 gtk_clist_clear(GTK_CLIST(packet_list));
247 gtk_clist_thaw(GTK_CLIST(packet_list));
249 /* Clear any file-related status bar messages.
250 XXX - should be "clear *ALL* file-related status bar messages;
251 will there ever be more than one on the stack? */
252 statusbar_pop_file_msg();
254 /* Restore the standard title bar message. */
255 set_main_window_name("The Ethereal Network Analyzer");
257 /* Disable all menu items that make sense only if you have a capture. */
258 set_menus_for_capture_file(FALSE);
259 set_menus_for_unsaved_capture_file(FALSE);
260 set_menus_for_captured_packets(FALSE);
261 set_menus_for_selected_packet(FALSE);
262 set_menus_for_capture_in_progress(FALSE);
263 set_menus_for_selected_tree_row(FALSE);
265 /* We have no file open. */
266 cf->state = FILE_CLOSED;
269 /* Set the file name in the status line, in the name for the main window,
270 and in the name for the main window's icon. */
272 set_display_filename(capture_file *cf)
276 static const gchar done_fmt_nodrops[] = " File: %s";
277 static const gchar done_fmt_drops[] = " File: %s Drops: %u";
279 gchar *win_name_fmt = "%s - Ethereal";
282 if (!cf->is_tempfile) {
283 /* Get the last component of the file name, and put that in the
285 name_ptr = get_basename(cf->filename);
287 /* The file we read is a temporary file from a live capture;
288 we don't mention its name in the status bar. */
289 name_ptr = "<capture>";
292 if (cf->drops_known) {
293 msg_len = strlen(name_ptr) + strlen(done_fmt_drops) + 64;
294 done_msg = g_malloc(msg_len);
295 snprintf(done_msg, msg_len, done_fmt_drops, name_ptr, cf->drops);
297 msg_len = strlen(name_ptr) + strlen(done_fmt_nodrops);
298 done_msg = g_malloc(msg_len);
299 snprintf(done_msg, msg_len, done_fmt_nodrops, name_ptr);
301 statusbar_push_file_msg(done_msg);
304 msg_len = strlen(name_ptr) + strlen(win_name_fmt) + 1;
305 win_name = g_malloc(msg_len);
306 snprintf(win_name, msg_len, win_name_fmt, name_ptr);
307 set_main_window_name(win_name);
312 read_cap_file(capture_file *cf, int *err)
314 gchar *name_ptr, *load_msg, *load_fmt = " Loading: %s...";
317 char errmsg_errno[1024+1];
318 gchar err_str[2048+1];
327 name_ptr = get_basename(cf->filename);
329 msg_len = strlen(name_ptr) + strlen(load_fmt) + 2;
330 load_msg = g_malloc(msg_len);
331 snprintf(load_msg, msg_len, load_fmt, name_ptr);
332 statusbar_push_file_msg(load_msg);
334 /* Update the progress bar when it gets to this value. */
335 cf->progbar_nextstep = 0;
336 /* When we reach the value that triggers a progress bar update,
337 bump that value by this amount. */
338 cf->progbar_quantum = cf->f_len/N_PROGBAR_UPDATES;
347 progbar = create_progress_dlg(load_msg, "Stop", &stop_flag);
350 while ((wtap_read(cf->wth, err, &data_offset))) {
351 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
352 when we update it, we have to run the GTK+ main loop to get it
353 to repaint what's pending, and doing so may involve an "ioctl()"
354 to see if there's any pending input from an X server, and doing
355 that for every packet can be costly, especially on a big file. */
356 if (data_offset >= cf->progbar_nextstep) {
357 file_pos = lseek(cf->filed, 0, SEEK_CUR);
358 prog_val = (gfloat) file_pos / (gfloat) cf->f_len;
359 if (prog_val > 1.0) {
360 /* The file probably grew while we were reading it.
361 Update "cf->f_len", and try again. */
362 fd = wtap_fd(cf->wth);
363 if (fstat(fd, &cf_stat) >= 0) {
364 cf->f_len = cf_stat.st_size;
365 prog_val = (gfloat) file_pos / (gfloat) cf->f_len;
367 /* If it's still > 1, either the "fstat()" failed (in which
368 case there's not much we can do about it), or the file
369 *shrank* (in which case there's not much we can do about
370 it); just clip the progress value at 1.0. */
374 update_progress_dlg(progbar, prog_val);
375 cf->progbar_nextstep += cf->progbar_quantum;
379 /* Well, the user decided to abort the read. Destroy the progress
380 bar, close the capture file, and return READ_ABORTED so our caller
381 can do whatever is appropriate when that happens. */
382 destroy_progress_dlg(progbar);
383 cf->state = FILE_READ_ABORTED; /* so that we're allowed to close it */
384 gtk_clist_thaw(GTK_CLIST(packet_list)); /* undo our freeze */
386 return (READ_ABORTED);
388 read_packet(cf, data_offset);
391 /* We're done reading the file; destroy the progress bar. */
392 destroy_progress_dlg(progbar);
394 /* We're done reading sequentially through the file. */
395 cf->state = FILE_READ_DONE;
397 /* Close the sequential I/O side, to free up memory it requires. */
398 wtap_sequential_close(cf->wth);
400 /* Allow the protocol dissectors to free up memory that they
401 * don't need after the sequential run-through of the packets. */
402 postseq_cleanup_all_protocols();
404 /* Set the file encapsulation type now; we don't know what it is until
405 we've looked at all the packets, as we don't know until then whether
406 there's more than one type (and thus whether it's
407 WTAP_ENCAP_PER_PACKET). */
408 cf->lnk_t = wtap_file_encap(cf->wth);
410 cf->current_frame = cf->first_displayed;
413 statusbar_pop_file_msg();
414 set_display_filename(cf);
416 /* Enable menu items that make sense if you have a capture file you've
418 set_menus_for_capture_file(TRUE);
419 set_menus_for_unsaved_capture_file(!cf->user_saved);
421 /* Enable menu items that make sense if you have some captured packets. */
422 set_menus_for_captured_packets(TRUE);
424 /* If we have any displayed packets to select, select the first of those
425 packets by making the first row the selected row. */
426 if (cf->first_displayed != NULL)
427 gtk_signal_emit_by_name(GTK_OBJECT(packet_list), "select_row", 0);
430 /* Put up a message box noting that the read failed somewhere along
431 the line. Don't throw out the stuff we managed to read, though,
435 case WTAP_ERR_UNSUPPORTED_ENCAP:
436 errmsg = "The capture file is for a network type that Ethereal doesn't support.";
439 case WTAP_ERR_CANT_READ:
440 errmsg = "An attempt to read from the file failed for"
441 " some unknown reason.";
444 case WTAP_ERR_SHORT_READ:
445 errmsg = "The capture file appears to have been cut short"
446 " in the middle of a packet.";
449 case WTAP_ERR_BAD_RECORD:
450 errmsg = "The capture file appears to be damaged or corrupt.";
454 snprintf(errmsg_errno, sizeof(errmsg_errno),
455 "An error occurred while reading the"
456 " capture file: %s.", wtap_strerror(*err));
457 errmsg = errmsg_errno;
460 snprintf(err_str, sizeof err_str, errmsg);
461 simple_dialog(ESD_TYPE_CRIT, NULL, err_str);
464 return (READ_SUCCESS);
469 start_tail_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
474 err = open_cap_file(fname, is_tempfile, cf);
476 /* Disable menu items that make no sense if you're currently running
478 set_menus_for_capture_in_progress(TRUE);
480 /* Enable menu items that make sense if you have some captured
481 packets (yes, I know, we don't have any *yet*). */
482 set_menus_for_captured_packets(TRUE);
484 for (i = 0; i < cf->cinfo.num_cols; i++) {
485 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_LIVE)
486 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
488 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
489 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
490 cf->cinfo.col_width[i]);
491 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
495 statusbar_push_file_msg(" <live capture in progress>");
501 continue_tail_cap_file(capture_file *cf, int to_read, int *err)
503 long data_offset = 0;
505 gtk_clist_freeze(GTK_CLIST(packet_list));
507 while (to_read != 0 && (wtap_read(cf->wth, err, &data_offset))) {
508 if (cf->state == FILE_READ_ABORTED) {
509 /* Well, the user decided to exit Ethereal. Break out of the
510 loop, and let the code below (which is called even if there
511 aren't any packets left to read) exit. */
514 read_packet(cf, data_offset);
518 gtk_clist_thaw(GTK_CLIST(packet_list));
520 /* XXX - this cheats and looks inside the packet list to find the final
522 if (auto_scroll_live && cf->plist_end != NULL)
523 gtk_clist_moveto(GTK_CLIST(packet_list),
524 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
526 if (cf->state == FILE_READ_ABORTED) {
527 /* Well, the user decided to exit Ethereal. Return READ_ABORTED
528 so that our caller can kill off the capture child process;
529 this will cause an EOF on the pipe from the child, so
530 "finish_tail_cap_file()" will be called, and it will clean up
533 } else if (*err != 0) {
534 /* We got an error reading the capture file.
535 XXX - pop up a dialog box? */
538 return (READ_SUCCESS);
542 finish_tail_cap_file(capture_file *cf, int *err)
546 gtk_clist_freeze(GTK_CLIST(packet_list));
548 while ((wtap_read(cf->wth, err, &data_offset))) {
549 if (cf->state == FILE_READ_ABORTED) {
550 /* Well, the user decided to abort the read. Break out of the
551 loop, and let the code below (which is called even if there
552 aren't any packets left to read) exit. */
555 read_packet(cf, data_offset);
558 if (cf->state == FILE_READ_ABORTED) {
559 /* Well, the user decided to abort the read. We're only called
560 when the child capture process closes the pipe to us (meaning
561 it's probably exited), so we can just close the capture
562 file; we return READ_ABORTED so our caller can do whatever
563 is appropriate when that happens. */
569 if (auto_scroll_live && cf->plist_end != NULL)
570 /* XXX - this cheats and looks inside the packet list to find the final
572 gtk_clist_moveto(GTK_CLIST(packet_list),
573 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
575 /* We're done reading sequentially through the file. */
576 cf->state = FILE_READ_DONE;
578 /* We're done reading sequentially through the file; close the
579 sequential I/O side, to free up memory it requires. */
580 wtap_sequential_close(cf->wth);
582 /* Allow the protocol dissectors to free up memory that they
583 * don't need after the sequential run-through of the packets. */
584 postseq_cleanup_all_protocols();
586 /* Set the file encapsulation type now; we don't know what it is until
587 we've looked at all the packets, as we don't know until then whether
588 there's more than one type (and thus whether it's
589 WTAP_ENCAP_PER_PACKET). */
590 cf->lnk_t = wtap_file_encap(cf->wth);
592 /* Pop the "<live capture in progress>" message off the status bar. */
593 statusbar_pop_file_msg();
595 set_display_filename(cf);
597 /* Enable menu items that make sense if you're not currently running
599 set_menus_for_capture_in_progress(FALSE);
601 /* Enable menu items that make sense if you have a capture file
602 you've finished reading. */
603 set_menus_for_capture_file(TRUE);
604 set_menus_for_unsaved_capture_file(!cf->user_saved);
607 /* We got an error reading the capture file.
608 XXX - pop up a dialog box? */
611 return (READ_SUCCESS);
613 #endif /* HAVE_LIBPCAP */
616 color_filter_t *colorf;
618 } apply_color_filter_args;
621 * If no color filter has been applied, apply this one.
622 * (The "if no color filter has been applied" is to handle the case where
623 * more than one color filter matches the packet.)
626 apply_color_filter(gpointer filter_arg, gpointer argp)
628 color_filter_t *colorf = filter_arg;
629 apply_color_filter_args *args = argp;
631 if (colorf->c_colorfilter != NULL && args->colorf == NULL) {
632 if (dfilter_apply_edt(colorf->c_colorfilter, args->edt))
633 args->colorf = colorf;
638 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
639 union wtap_pseudo_header *pseudo_header, const u_char *buf,
642 apply_color_filter_args args;
644 gboolean create_proto_tree = FALSE;
648 /* We don't yet have a color filter to apply. */
651 /* If we don't have the time stamp of the first packet in the
652 capture, it's because this is the first packet. Save the time
653 stamp of this packet as the time stamp of the first packet. */
654 if (!firstsec && !firstusec) {
655 firstsec = fdata->abs_secs;
656 firstusec = fdata->abs_usecs;
661 we have a display filter and are re-applying it;
663 we have a list of color filters;
665 allocate a protocol tree root node, so that we'll construct
666 a protocol tree against which a filter expression can be
668 if ((cf->dfcode != NULL && refilter) || filter_list != NULL)
669 create_proto_tree = TRUE;
671 /* Dissect the frame. */
672 edt = epan_dissect_new(create_proto_tree, FALSE);
674 if (cf->dfcode != NULL && refilter) {
675 epan_dissect_prime_dfilter(edt, cf->dfcode);
678 filter_list_prime_edt(edt);
680 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
683 /* If we have a display filter, apply it if we're refiltering, otherwise
684 leave the "passed_dfilter" flag alone.
686 If we don't have a display filter, set "passed_dfilter" to 1. */
687 if (cf->dfcode != NULL) {
689 if (cf->dfcode != NULL)
690 fdata->flags.passed_dfilter = dfilter_apply_edt(cf->dfcode, edt) ? 1 : 0;
692 fdata->flags.passed_dfilter = 1;
695 fdata->flags.passed_dfilter = 1;
697 /* If we have color filters, and the frame is to be displayed, apply
698 the color filters. */
699 if (fdata->flags.passed_dfilter) {
700 if (filter_list != NULL) {
702 g_slist_foreach(filter_list, apply_color_filter, &args);
707 if (fdata->flags.passed_dfilter) {
708 /* This frame passed the display filter, so add it to the clist. */
710 /* If we don't have the time stamp of the previous displayed packet,
711 it's because this is the first displayed packet. Save the time
712 stamp of this packet as the time stamp of the previous displayed
714 if (!prevsec && !prevusec) {
715 prevsec = fdata->abs_secs;
716 prevusec = fdata->abs_usecs;
719 /* Get the time elapsed between the first packet and this packet. */
720 compute_timestamp_diff(&fdata->rel_secs, &fdata->rel_usecs,
721 fdata->abs_secs, fdata->abs_usecs, firstsec, firstusec);
723 /* If it's greater than the current elapsed time, set the elapsed time
724 to it (we check for "greater than" so as not to be confused by
725 time moving backwards). */
726 if ((gint32)cf->esec < fdata->rel_secs
727 || ((gint32)cf->esec == fdata->rel_secs && (gint32)cf->eusec < fdata->rel_usecs)) {
728 cf->esec = fdata->rel_secs;
729 cf->eusec = fdata->rel_usecs;
732 /* Get the time elapsed between the previous displayed packet and
734 compute_timestamp_diff(&fdata->del_secs, &fdata->del_usecs,
735 fdata->abs_secs, fdata->abs_usecs, prevsec, prevusec);
736 prevsec = fdata->abs_secs;
737 prevusec = fdata->abs_usecs;
739 epan_dissect_fill_in_columns(edt);
741 /* If we haven't yet seen the first frame, this is it.
743 XXX - we must do this before we add the row to the display,
744 as, if the display's GtkCList's selection mode is
745 GTK_SELECTION_BROWSE, when the first entry is added to it,
746 "select_packet()" will be called, and it will fetch the row
747 data for the 0th row, and will get a null pointer rather than
748 "fdata", as "gtk_clist_append()" won't yet have returned and
749 thus "gtk_clist_set_row_data()" won't yet have been called.
751 We thus need to leave behind bread crumbs so that
752 "select_packet()" can find this frame. See the comment
753 in "select_packet()". */
754 if (cf->first_displayed == NULL)
755 cf->first_displayed = fdata;
757 /* This is the last frame we've seen so far. */
758 cf->last_displayed = fdata;
760 row = gtk_clist_append(GTK_CLIST(packet_list), cf->cinfo.col_data);
761 gtk_clist_set_row_data(GTK_CLIST(packet_list), row, fdata);
763 if (fdata->flags.marked) {
764 color_t_to_gdkcolor(&bg, &prefs.gui_marked_bg);
765 color_t_to_gdkcolor(&fg, &prefs.gui_marked_fg);
766 } else if (filter_list != NULL && (args.colorf != NULL)) {
767 bg = args.colorf->bg_color;
768 fg = args.colorf->fg_color;
773 gtk_clist_set_background(GTK_CLIST(packet_list), row, &bg);
774 gtk_clist_set_foreground(GTK_CLIST(packet_list), row, &fg);
776 /* This frame didn't pass the display filter, so it's not being added
777 to the clist, and thus has no row. */
780 epan_dissect_free(edt);
785 read_packet(capture_file *cf, long offset)
787 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
788 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
789 const u_char *buf = wtap_buf_ptr(cf->wth);
792 frame_data *plist_end;
795 /* Allocate the next list entry, and add it to the list. */
796 fdata = g_mem_chunk_alloc(cf->plist_chunk);
801 fdata->data_src = NULL;
802 fdata->pkt_len = phdr->len;
803 fdata->cap_len = phdr->caplen;
804 fdata->file_off = offset;
805 fdata->lnk_t = phdr->pkt_encap;
806 fdata->abs_secs = phdr->ts.tv_sec;
807 fdata->abs_usecs = phdr->ts.tv_usec;
808 fdata->flags.encoding = CHAR_ASCII;
809 fdata->flags.visited = 0;
810 fdata->flags.marked = 0;
814 edt = epan_dissect_new(TRUE, FALSE);
815 epan_dissect_prime_dfilter(edt, cf->rfcode);
816 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
817 passed = dfilter_apply_edt(cf->rfcode, edt);
818 epan_dissect_free(edt);
821 plist_end = cf->plist_end;
822 fdata->prev = plist_end;
823 if (plist_end != NULL)
824 plist_end->next = fdata;
827 cf->plist_end = fdata;
830 fdata->num = cf->count;
831 add_packet_to_packet_list(fdata, cf, pseudo_header, buf, TRUE);
833 /* XXX - if we didn't have read filters, or if we could avoid
834 allocating the "frame_data" structure until we knew whether
835 the frame passed the read filter, we could use a G_ALLOC_ONLY
838 ...but, at least in one test I did, where I just made the chunk
839 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
840 seem to save a noticeable amount of time or space. */
841 g_mem_chunk_free(cf->plist_chunk, fdata);
846 filter_packets(capture_file *cf, gchar *dftext)
850 if (dftext == NULL) {
851 /* The new filter is an empty filter (i.e., display all packets). */
855 * We have a filter; make a copy of it (as we'll be saving it),
856 * and try to compile it.
858 dftext = g_strdup(dftext);
859 if (!dfilter_compile(dftext, &dfcode)) {
860 /* The attempt failed; report an error. */
861 simple_dialog(ESD_TYPE_CRIT, NULL, dfilter_error_msg);
866 if (dfcode == NULL) {
867 /* Yes - free the filter text, and set it to null. */
873 /* We have a valid filter. Replace the current filter. */
874 if (cf->dfilter != NULL)
876 cf->dfilter = dftext;
877 if (cf->dfcode != NULL)
878 dfilter_free(cf->dfcode);
881 /* Now rescan the packet list, applying the new filter, but not
882 throwing away information constructed on a previous pass. */
883 rescan_packets(cf, "Filtering", TRUE, FALSE);
888 colorize_packets(capture_file *cf)
890 rescan_packets(cf, "Colorizing", FALSE, FALSE);
894 redissect_packets(capture_file *cf)
896 rescan_packets(cf, "Reprocessing", TRUE, TRUE);
899 /* Rescan the list of packets, reconstructing the CList.
901 "action" describes why we're doing this; it's used in the progress
904 "refilter" is TRUE if we need to re-evaluate the filter expression.
906 "redissect" is TRUE if we need to make the dissectors reconstruct
907 any state information they have (because a preference that affects
908 some dissector has changed, meaning some dissector might construct
909 its state differently from the way it was constructed the last time). */
911 rescan_packets(capture_file *cf, const char *action, gboolean refilter,
917 guint32 progbar_quantum;
918 guint32 progbar_nextstep;
921 frame_data *selected_frame;
925 /* Which frame, if any, is the currently selected frame?
926 XXX - should the selected frame or the focus frame be the "current"
927 frame, that frame being the one from which "Find Frame" searches
929 selected_frame = cf->current_frame;
931 /* We don't yet know what row that frame will be on, if any, after we
932 rebuild the clist, however. */
936 /* We need to re-initialize all the state information that protocols
937 keep, because some preference that controls a dissector has changed,
938 which might cause the state information to be constructed differently
939 by that dissector. */
941 /* Initialize all data structures used for dissection. */
945 /* Freeze the packet list while we redo it, so we don't get any
946 screen updates while it happens. */
947 gtk_clist_freeze(GTK_CLIST(packet_list));
950 gtk_clist_clear(GTK_CLIST(packet_list));
952 /* We don't yet know which will be the first and last frames displayed. */
953 cf->first_displayed = NULL;
954 cf->last_displayed = NULL;
956 /* Iterate through the list of frames. Call a routine for each frame
957 to check whether it should be displayed and, if so, add it to
964 /* Update the progress bar when it gets to this value. */
965 progbar_nextstep = 0;
966 /* When we reach the value that triggers a progress bar update,
967 bump that value by this amount. */
968 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
969 /* Count of packets at which we've looked. */
973 progbar = create_progress_dlg(action, "Stop", &stop_flag);
975 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
976 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
977 when we update it, we have to run the GTK+ main loop to get it
978 to repaint what's pending, and doing so may involve an "ioctl()"
979 to see if there's any pending input from an X server, and doing
980 that for every packet can be costly, especially on a big file. */
981 if (count >= progbar_nextstep) {
982 /* let's not divide by zero. I should never be started
983 * with count == 0, so let's assert that
985 g_assert(cf->count > 0);
987 update_progress_dlg(progbar, (gfloat) count / cf->count);
989 progbar_nextstep += progbar_quantum;
993 /* Well, the user decided to abort the filtering. Just stop.
995 XXX - go back to the previous filter? Users probably just
996 want not to wait for a filtering operation to finish;
997 unless we cancel by having no filter, reverting to the
998 previous filter will probably be even more expensive than
999 continuing the filtering, as it involves going back to the
1000 beginning and filtering, and even with no filter we currently
1001 have to re-generate the entire clist, which is also expensive.
1003 I'm not sure what Network Monitor does, but it doesn't appear
1004 to give you an unfiltered display if you cancel. */
1011 /* Since all state for the frame was destroyed, mark the frame
1012 * as not visited, free the GSList referring to the state
1013 * data (the per-frame data itself was freed by
1014 * "init_dissection()"), and null out the GSList pointer. */
1015 fdata->flags.visited = 0;
1017 g_slist_free(fdata->pfd);
1020 free_data_sources(fdata); /* release data source list */
1023 /* XXX - do something with "err" */
1024 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1025 cf->pd, fdata->cap_len, &err);
1027 row = add_packet_to_packet_list(fdata, cf, &cf->pseudo_header, cf->pd,
1029 if (fdata == selected_frame)
1034 /* Clear out what remains of the visited flags and per-frame data
1037 XXX - that may cause various forms of bogosity when dissecting
1038 these frames, as they won't have been seen by this sequential
1039 pass, but the only alternative I see is to keep scanning them
1040 even though the user requested that the scan stop, and that
1041 would leave the user stuck with an Ethereal grinding on
1042 until it finishes. Should we just stick them with that? */
1043 for (; fdata != NULL; fdata = fdata->next) {
1044 fdata->flags.visited = 0;
1046 g_slist_free(fdata->pfd);
1049 free_data_sources(fdata); /* release data source list */
1053 /* We're done filtering the packets; destroy the progress bar. */
1054 destroy_progress_dlg(progbar);
1056 /* Unfreeze the packet list. */
1057 gtk_clist_thaw(GTK_CLIST(packet_list));
1059 if (selected_row != -1) {
1060 /* The frame that was selected passed the filter; select it, make it
1061 the focus row, and make it visible. */
1062 set_selected_row(selected_row);
1063 finfo_selected = NULL;
1065 /* The selected frame didn't pass the filter; make the first frame
1066 the current frame, and leave it unselected. */
1067 unselect_packet(cf);
1068 cf->current_frame = cf->first_displayed;
1073 print_packets(capture_file *cf, print_args_t *print_args)
1079 guint32 progbar_quantum;
1080 guint32 progbar_nextstep;
1083 gint *col_widths = NULL;
1085 gboolean print_separator;
1086 char *line_buf = NULL;
1087 int line_buf_len = 256;
1091 epan_dissect_t *edt = NULL;
1093 cf->print_fh = open_print_dest(print_args->to_file, print_args->dest);
1094 if (cf->print_fh == NULL)
1095 return FALSE; /* attempt to open destination failed */
1097 print_preamble(cf->print_fh, print_args->format);
1099 if (print_args->print_summary) {
1100 /* We're printing packet summaries. Allocate the line buffer at
1101 its initial length. */
1102 line_buf = g_malloc(line_buf_len + 1);
1104 /* Find the widths for each of the columns - maximum of the
1105 width of the title and the width of the data - and print
1106 the column titles. */
1107 col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
1110 for (i = 0; i < cf->cinfo.num_cols; i++) {
1111 /* Don't pad the last column. */
1112 if (i == cf->cinfo.num_cols - 1)
1115 col_widths[i] = strlen(cf->cinfo.col_title[i]);
1116 data_width = get_column_char_width(get_column_format(i));
1117 if (data_width > col_widths[i])
1118 col_widths[i] = data_width;
1121 /* Find the length of the string for this column. */
1122 column_len = strlen(cf->cinfo.col_title[i]);
1123 if (col_widths[i] > column_len)
1124 column_len = col_widths[i];
1126 /* Make sure there's room in the line buffer for the column; if not,
1127 double its length. */
1128 line_len += column_len + 1; /* "+1" for space or \n */
1129 if (line_len > line_buf_len) {
1131 line_buf = g_realloc(line_buf, line_buf_len + 1);
1134 /* Right-justify the packet number column. */
1135 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1136 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_title[i]);
1138 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_title[i]);
1140 if (i == cf->cinfo.num_cols - 1)
1146 print_line(cf->print_fh, print_args->format, line_buf);
1149 print_separator = FALSE;
1151 /* Update the progress bar when it gets to this value. */
1152 progbar_nextstep = 0;
1153 /* When we reach the value that triggers a progress bar update,
1154 bump that value by this amount. */
1155 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1156 /* Count of packets at which we've looked. */
1160 progbar = create_progress_dlg("Printing", "Stop", &stop_flag);
1162 /* Iterate through the list of packets, printing the packets that
1163 were selected by the current display filter. */
1164 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1165 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1166 when we update it, we have to run the GTK+ main loop to get it
1167 to repaint what's pending, and doing so may involve an "ioctl()"
1168 to see if there's any pending input from an X server, and doing
1169 that for every packet can be costly, especially on a big file. */
1170 if (count >= progbar_nextstep) {
1171 /* let's not divide by zero. I should never be started
1172 * with count == 0, so let's assert that
1174 g_assert(cf->count > 0);
1176 update_progress_dlg(progbar, (gfloat) count / cf->count);
1178 progbar_nextstep += progbar_quantum;
1182 /* Well, the user decided to abort the printing. Just stop.
1184 XXX - note that what got generated before they did that
1185 will get printed, as we're piping to a print program; we'd
1186 have to write to a file and then hand that to the print
1187 program to make it actually not print anything. */
1192 /* Check to see if we are suppressing unmarked packets, if so,
1193 * suppress them and then proceed to check for visibility.
1195 if (((print_args->suppress_unmarked && fdata->flags.marked ) ||
1196 !(print_args->suppress_unmarked)) && fdata->flags.passed_dfilter) {
1197 /* XXX - do something with "err" */
1198 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1199 cf->pd, fdata->cap_len, &err);
1200 if (print_args->print_summary) {
1201 /* Fill in the column information, but don't bother creating
1202 the logical protocol tree. */
1203 edt = epan_dissect_new(FALSE, FALSE);
1204 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
1205 epan_dissect_fill_in_columns(edt);
1208 for (i = 0; i < cf->cinfo.num_cols; i++) {
1209 /* Find the length of the string for this column. */
1210 column_len = strlen(cf->cinfo.col_data[i]);
1211 if (col_widths[i] > column_len)
1212 column_len = col_widths[i];
1214 /* Make sure there's room in the line buffer for the column; if not,
1215 double its length. */
1216 line_len += column_len + 1; /* "+1" for space or \n */
1217 if (line_len > line_buf_len) {
1219 line_buf = g_realloc(line_buf, line_buf_len + 1);
1222 /* Right-justify the packet number column. */
1223 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1224 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_data[i]);
1226 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_data[i]);
1228 if (i == cf->cinfo.num_cols - 1)
1234 print_line(cf->print_fh, print_args->format, line_buf);
1236 if (print_separator)
1237 print_line(cf->print_fh, print_args->format, "\n");
1239 /* Create the logical protocol tree, complete with the display
1240 representation of the items; we don't need the columns here,
1242 edt = epan_dissect_new(TRUE, TRUE);
1243 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1245 /* Print the information in that tree. */
1246 proto_tree_print(print_args, (GNode *)edt->tree,
1247 fdata, cf->print_fh);
1249 if (print_args->print_hex) {
1250 /* Print the full packet data as hex. */
1251 print_hex_data(cf->print_fh, print_args->format, fdata);
1254 /* Print a blank line if we print anything after this. */
1255 print_separator = TRUE;
1257 epan_dissect_free(edt);
1261 /* We're done printing the packets; destroy the progress bar. */
1262 destroy_progress_dlg(progbar);
1264 if (col_widths != NULL)
1266 if (line_buf != NULL)
1269 print_finale(cf->print_fh, print_args->format);
1271 close_print_dest(print_args->to_file, cf->print_fh);
1273 cf->print_fh = NULL;
1278 /* Scan through the packet list and change all columns that use the
1279 "command-line-specified" time stamp format to use the current
1280 value of that format. */
1282 change_time_formats(capture_file *cf)
1287 guint32 progbar_quantum;
1288 guint32 progbar_nextstep;
1294 /* Are there any columns with time stamps in the "command-line-specified"
1297 XXX - we have to force the "column is writable" flag on, as it
1298 might be off from the last frame that was dissected. */
1299 col_set_writable(&cf->cinfo, TRUE);
1300 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
1301 /* No, there aren't any columns in that format, so we have no work
1306 /* Freeze the packet list while we redo it, so we don't get any
1307 screen updates while it happens. */
1310 /* Update the progress bar when it gets to this value. */
1311 progbar_nextstep = 0;
1312 /* When we reach the value that triggers a progress bar update,
1313 bump that value by this amount. */
1314 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1315 /* Count of packets at which we've looked. */
1319 progbar = create_progress_dlg("Changing time display", "Stop", &stop_flag);
1321 /* Iterate through the list of packets, checking whether the packet
1322 is in a row of the summary list and, if so, whether there are
1323 any columns that show the time in the "command-line-specified"
1324 format and, if so, update that row. */
1325 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1326 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1327 when we update it, we have to run the GTK+ main loop to get it
1328 to repaint what's pending, and doing so may involve an "ioctl()"
1329 to see if there's any pending input from an X server, and doing
1330 that for every packet can be costly, especially on a big file. */
1331 if (count >= progbar_nextstep) {
1332 /* let's not divide by zero. I should never be started
1333 * with count == 0, so let's assert that
1335 g_assert(cf->count > 0);
1337 update_progress_dlg(progbar, (gfloat) count / cf->count);
1339 progbar_nextstep += progbar_quantum;
1343 /* Well, the user decided to abort the redisplay. Just stop.
1345 XXX - this leaves the time field in the old format in
1346 frames we haven't yet processed. So it goes; should we
1347 simply not offer them the option of stopping? */
1353 /* Find what row this packet is in. */
1354 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1357 /* This packet is in the summary list, on row "row". */
1359 for (i = 0; i < cf->cinfo.num_cols; i++) {
1360 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1361 /* This is one of the columns that shows the time in
1362 "command-line-specified" format; update it. */
1363 cf->cinfo.col_buf[i][0] = '\0';
1364 col_set_cls_time(fdata, &cf->cinfo, i);
1365 gtk_clist_set_text(GTK_CLIST(packet_list), row, i,
1366 cf->cinfo.col_data[i]);
1372 /* We're done redisplaying the packets; destroy the progress bar. */
1373 destroy_progress_dlg(progbar);
1375 /* Set the column widths of those columns that show the time in
1376 "command-line-specified" format. */
1377 pl_style = gtk_widget_get_style(packet_list);
1378 for (i = 0; i < cf->cinfo.num_cols; i++) {
1379 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1380 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1381 gdk_string_width(pl_style->font, get_column_longest_string(COL_CLS_TIME)));
1385 /* Unfreeze the packet list. */
1390 find_packet(capture_file *cf, dfilter_t *sfcode)
1392 frame_data *start_fd;
1394 frame_data *new_fd = NULL;
1395 progdlg_t *progbar = NULL;
1397 guint32 progbar_quantum;
1398 guint32 progbar_nextstep;
1401 gboolean frame_matched;
1403 epan_dissect_t *edt;
1405 start_fd = cf->current_frame;
1406 if (start_fd != NULL) {
1407 /* Iterate through the list of packets, starting at the packet we've
1408 picked, calling a routine to run the filter on the packet, see if
1409 it matches, and stop if so. */
1413 /* Update the progress bar when it gets to this value. We start at
1414 20, not 0, so that we don't get a progress bar until we've
1415 checked at least that many frames, so that a very quick search
1416 doesn't pop up and immediately destroy a progress bar.
1418 XXX - should use a timer? Like 50 ms. */
1419 progbar_nextstep = 20;
1420 /* When we reach the value that triggers a progress bar update,
1421 bump that value by this amount. */
1422 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1428 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1429 when we update it, we have to run the GTK+ main loop to get it
1430 to repaint what's pending, and doing so may involve an "ioctl()"
1431 to see if there's any pending input from an X server, and doing
1432 that for every packet can be costly, especially on a big file. */
1433 if (count >= progbar_nextstep) {
1434 /* let's not divide by zero. I should never be started
1435 * with count == 0, so let's assert that
1437 g_assert(cf->count > 0);
1439 /* Create the progress bar if it doesn't exist; we don't create it
1440 immediately, so that we don't have it appear and immediately
1441 disappear if the search is quick. */
1442 if (progbar == NULL)
1443 progbar = create_progress_dlg("Searching", "Cancel", &stop_flag);
1445 update_progress_dlg(progbar, (gfloat) count / cf->count);
1447 progbar_nextstep += progbar_quantum;
1451 /* Well, the user decided to abort the search. Go back to the
1452 frame where we started. */
1457 /* Go past the current frame. */
1458 if (cf->sbackward) {
1459 /* Go on to the previous frame. */
1460 fdata = fdata->prev;
1462 fdata = cf->plist_end; /* wrap around */
1464 /* Go on to the next frame. */
1465 fdata = fdata->next;
1467 fdata = cf->plist; /* wrap around */
1472 /* Is this packet in the display? */
1473 if (fdata->flags.passed_dfilter) {
1474 /* Yes. Does it match the search filter? */
1475 /* XXX - do something with "err" */
1476 wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
1477 cf->pd, fdata->cap_len, &err);
1478 edt = epan_dissect_new(TRUE, FALSE);
1479 epan_dissect_prime_dfilter(edt, sfcode);
1480 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1481 frame_matched = dfilter_apply_edt(sfcode, edt);
1482 epan_dissect_free(edt);
1483 if (frame_matched) {
1485 break; /* found it! */
1489 if (fdata == start_fd) {
1490 /* We're back to the frame we were on originally, and that frame
1491 doesn't match the search filter. The search failed. */
1496 /* We're done scanning the packets; destroy the progress bar, if
1498 if (progbar != NULL)
1499 destroy_progress_dlg(progbar);
1502 if (new_fd != NULL) {
1503 /* We found a frame. Find what row it's in. */
1504 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), new_fd);
1505 g_assert(row != -1);
1507 /* Select that row, make it the focus row, and make it visible. */
1508 set_selected_row(row);
1509 return TRUE; /* success */
1511 return FALSE; /* failure */
1515 goto_frame(capture_file *cf, guint fnumber)
1520 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
1524 return NO_SUCH_FRAME; /* we didn't find that frame */
1525 if (!fdata->flags.passed_dfilter)
1526 return FRAME_NOT_DISPLAYED; /* the frame with that number isn't displayed */
1528 /* We found that frame, and it's currently being displayed.
1529 Find what row it's in. */
1530 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1531 g_assert(row != -1);
1533 /* Select that row, make it the focus row, and make it visible. */
1534 set_selected_row(row);
1538 /* Select the packet on a given row. */
1540 select_packet(capture_file *cf, int row)
1545 /* Get the frame data struct pointer for this frame */
1546 fdata = (frame_data *) gtk_clist_get_row_data(GTK_CLIST(packet_list), row);
1548 if (fdata == NULL) {
1549 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
1550 the first entry is added to it by "real_insert_row()", that row
1551 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
1552 our version and the vanilla GTK+ version).
1554 This means that a "select-row" signal is emitted; this causes
1555 "packet_list_select_cb()" to be called, which causes "select_packet()"
1558 "select_packet()" fetches, above, the data associated with the
1559 row that was selected; however, as "gtk_clist_append()", which
1560 called "real_insert_row()", hasn't yet returned, we haven't yet
1561 associated any data with that row, so we get back a null pointer.
1563 We can't assume that there's only one frame in the frame list,
1564 either, as we may be filtering the display.
1566 We therefore assume that, if "row" is 0, i.e. the first row
1567 is being selected, and "cf->first_displayed" equals
1568 "cf->last_displayed", i.e. there's only one frame being
1569 displayed, that frame is the frame we want.
1571 This means we have to set "cf->first_displayed" and
1572 "cf->last_displayed" before adding the row to the
1573 GtkCList; see the comment in "add_packet_to_packet_list()". */
1575 if (row == 0 && cf->first_displayed == cf->last_displayed)
1576 fdata = cf->first_displayed;
1579 /* Record that this frame is the current frame. */
1580 cf->current_frame = fdata;
1582 /* Get the data in that frame. */
1583 /* XXX - do something with "err" */
1584 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1585 cf->pd, fdata->cap_len, &err);
1587 /* Create the logical protocol tree. */
1588 if (cf->edt != NULL) {
1589 epan_dissect_free(cf->edt);
1592 /* We don't need the columns here. */
1593 cf->edt = epan_dissect_new(TRUE, TRUE);
1594 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
1597 /* Display the GUI protocol tree and hex dump.
1598 XXX - why do we dump core if we call "proto_tree_draw()"
1599 before calling "add_byte_views()"? */
1600 add_byte_views(cf->current_frame, cf->edt->tree, tree_view,
1602 proto_tree_draw(cf->edt->tree, tree_view);
1604 /* A packet is selected. */
1605 set_menus_for_selected_packet(TRUE);
1608 /* Unselect the selected packet, if any. */
1610 unselect_packet(capture_file *cf)
1612 /* Destroy the epan_dissect_t for the unselected packet. */
1613 if (cf->edt != NULL) {
1614 epan_dissect_free(cf->edt);
1618 /* Clear out the display of that packet. */
1619 clear_tree_and_hex_views();
1621 /* No packet is selected. */
1622 set_menus_for_selected_packet(FALSE);
1624 /* No protocol tree means no selected field. */
1628 /* Set the selected row and the focus row of the packet list to the specified
1629 row, and make it visible if it's not currently visible. */
1631 set_selected_row(int row)
1633 if (gtk_clist_row_is_visible(GTK_CLIST(packet_list), row) != GTK_VISIBILITY_FULL)
1634 gtk_clist_moveto(GTK_CLIST(packet_list), row, -1, 0.0, 0.0);
1636 /* XXX - why is there no "gtk_clist_set_focus_row()", so that we
1637 can make the row for the frame we found the focus row?
1641 http://www.gnome.org/mailing-lists/archives/gtk-list/2000-January/0038.shtml
1644 GTK_CLIST(packet_list)->focus_row = row;
1646 gtk_clist_select_row(GTK_CLIST(packet_list), row, -1);
1649 /* Unset the selected protocol tree field, if any. */
1651 unselect_field(void)
1653 statusbar_pop_field_msg();
1654 finfo_selected = NULL;
1655 set_menus_for_selected_tree_row(FALSE);
1659 * Mark a particular frame.
1662 mark_frame(capture_file *cf, frame_data *frame)
1664 frame->flags.marked = TRUE;
1669 * Unmark a particular frame.
1672 unmark_frame(capture_file *cf, frame_data *frame)
1674 frame->flags.marked = FALSE;
1679 freeze_clist(capture_file *cf)
1683 /* Make the column sizes static, so they don't adjust while
1684 we're reading the capture file (freezing the clist doesn't
1685 seem to suffice). */
1686 for (i = 0; i < cf->cinfo.num_cols; i++)
1687 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
1688 gtk_clist_freeze(GTK_CLIST(packet_list));
1692 thaw_clist(capture_file *cf)
1696 for (i = 0; i < cf->cinfo.num_cols; i++) {
1697 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_MANUAL) {
1698 /* Set this column's width to the appropriate value. */
1699 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1700 cf->cinfo.col_width[i]);
1702 /* Make this column's size dynamic, so that it adjusts to the
1703 appropriate size. */
1704 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
1707 gtk_clist_thaw(GTK_CLIST(packet_list));
1709 /* Hopefully, the columns have now gotten their appropriate sizes;
1710 make them resizeable - a column that auto-resizes cannot be
1711 resized by the user, and *vice versa*. */
1712 for (i = 0; i < cf->cinfo.num_cols; i++)
1713 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
1717 * Save a capture to a file, in a particular format, saving either
1718 * all packets, all currently-displayed packets, or all marked packets.
1720 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
1721 * up a message box for the failure.
1724 save_cap_file(char *fname, capture_file *cf, gboolean save_filtered,
1725 gboolean save_marked, guint save_format)
1727 gboolean ret = TRUE;
1728 gchar *from_filename;
1729 gchar *name_ptr, *save_msg, *save_fmt = " Saving: %s...";
1735 struct wtap_pkthdr hdr;
1736 union wtap_pseudo_header pseudo_header;
1739 name_ptr = get_basename(fname);
1740 msg_len = strlen(name_ptr) + strlen(save_fmt) + 2;
1741 save_msg = g_malloc(msg_len);
1742 snprintf(save_msg, msg_len, save_fmt, name_ptr);
1743 statusbar_push_file_msg(save_msg);
1746 if (!save_filtered && !save_marked && save_format == cf->cd_t) {
1747 /* We're not filtering packets, and we're saving it in the format
1748 it's already in, so we can just move or copy the raw data. */
1750 if (cf->is_tempfile) {
1751 /* The file being saved is a temporary file from a live
1752 capture, so it doesn't need to stay around under that name;
1753 first, try renaming the capture buffer file to the new name. */
1755 if (rename(cf->filename, fname) == 0) {
1756 /* That succeeded - there's no need to copy the source file. */
1757 from_filename = NULL;
1760 if (errno == EXDEV) {
1761 /* They're on different file systems, so we have to copy the
1764 from_filename = cf->filename;
1766 /* The rename failed, but not because they're on different
1767 file systems - put up an error message. (Or should we
1768 just punt and try to copy? The only reason why I'd
1769 expect the rename to fail and the copy to succeed would
1770 be if we didn't have permission to remove the file from
1771 the temporary directory, and that might be fixable - but
1772 is it worth requiring the user to go off and fix it?) */
1773 simple_dialog(ESD_TYPE_CRIT, NULL,
1774 file_rename_error_message(errno), fname);
1781 from_filename = cf->filename;
1784 /* It's a permanent file, so we should copy it, and not remove the
1787 from_filename = cf->filename;
1791 /* Check that the from file is not the same as to file */
1792 if (strcmp(from_filename, fname) == 0) {
1793 simple_dialog(ESD_TYPE_CRIT, NULL,
1794 "Can't save over current capture file: %s!",
1800 /* Copy the file, if we haven't moved it. */
1801 if (!copy_binary_file(from_filename, fname)) {
1807 /* Either we're filtering packets, or we're saving in a different
1808 format; we can't do that by copying or moving the capture file,
1809 we have to do it by writing the packets out in Wiretap. */
1810 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap, &err);
1812 simple_dialog(ESD_TYPE_CRIT, NULL,
1813 file_open_error_message(err, TRUE), fname);
1818 /* XXX - have a way to save only the packets currently selected by
1819 the display filter or the marked ones.
1821 If we do that, should we make that file the current file? If so,
1822 it means we can no longer get at the other packets. What does
1824 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1825 /* XXX - do a progress bar */
1826 if ((!save_filtered && !save_marked) ||
1827 (save_filtered && fdata->flags.passed_dfilter && !save_marked) ||
1828 (save_marked && fdata->flags.marked && !save_filtered) ||
1829 (save_filtered && save_marked && fdata->flags.passed_dfilter &&
1830 fdata->flags.marked)) {
1832 - we're saving all frames, or
1833 - we're saving filtered frames and this one passed the display filter or
1834 - we're saving marked frames (and it has been marked) or
1835 - we're saving filtered _and_ marked frames,
1837 hdr.ts.tv_sec = fdata->abs_secs;
1838 hdr.ts.tv_usec = fdata->abs_usecs;
1839 hdr.caplen = fdata->cap_len;
1840 hdr.len = fdata->pkt_len;
1841 hdr.pkt_encap = fdata->lnk_t;
1842 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1843 pd, fdata->cap_len, &err)) {
1844 simple_dialog(ESD_TYPE_CRIT, NULL,
1845 file_read_error_message(err), cf->filename);
1846 wtap_dump_close(pdh, &err);
1851 if (!wtap_dump(pdh, &hdr, &pseudo_header, pd, &err)) {
1852 simple_dialog(ESD_TYPE_CRIT, NULL,
1853 file_write_error_message(err), fname);
1854 wtap_dump_close(pdh, &err);
1861 if (!wtap_dump_close(pdh, &err)) {
1862 simple_dialog(ESD_TYPE_WARN, NULL,
1863 file_close_error_message(err), fname);
1871 /* Pop the "Saving:" message off the status bar. */
1872 statusbar_pop_file_msg();
1874 if (!save_filtered && !save_marked) {
1875 /* We saved the entire capture, not just some packets from it.
1876 Open and read the file we saved it to.
1878 XXX - this is somewhat of a waste; we already have the
1879 packets, all this gets us is updated file type information
1880 (which we could just stuff into "cf"), and having the new
1881 file be the one we have opened and from which we're reading
1882 the data, and it means we have to spend time opening and
1883 reading the file, which could be a significant amount of
1884 time if the file is large. */
1885 cf->user_saved = TRUE;
1887 if ((err = open_cap_file(fname, FALSE, cf)) == 0) {
1888 /* XXX - report errors if this fails? */
1889 switch (read_cap_file(cf, &err)) {
1893 /* Just because we got an error, that doesn't mean we were unable
1894 to read any of the file; we handle what we could get from the
1899 /* The user bailed out of re-reading the capture file; the
1900 capture file has been closed - just return (without
1901 changing any menu settings; "close_cap_file()" set them
1902 correctly for the "no capture file open" state). */
1905 set_menus_for_unsaved_capture_file(FALSE);
1906 ret = FALSE; /* XXX - save succeeded, but re-read failed */
1914 file_open_error_message(int err, gboolean for_writing)
1917 static char errmsg_errno[1024+1];
1921 case WTAP_ERR_NOT_REGULAR_FILE:
1922 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
1925 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
1926 case WTAP_ERR_UNSUPPORTED:
1927 /* Seen only when opening a capture file for reading. */
1928 errmsg = "The file \"%s\" is not a capture file in a format Ethereal understands.";
1931 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
1932 /* Seen only when opening a capture file for writing. */
1933 errmsg = "Ethereal does not support writing capture files in that format.";
1936 case WTAP_ERR_UNSUPPORTED_ENCAP:
1937 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
1939 errmsg = "Ethereal cannot save this capture in that format.";
1941 errmsg = "The file \"%s\" is a capture for a network type that Ethereal doesn't support.";
1944 case WTAP_ERR_BAD_RECORD:
1945 errmsg = "The file \"%s\" appears to be damaged or corrupt.";
1948 case WTAP_ERR_CANT_OPEN:
1950 errmsg = "The file \"%s\" could not be created for some unknown reason.";
1952 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
1955 case WTAP_ERR_SHORT_READ:
1956 errmsg = "The file \"%s\" appears to have been cut short"
1957 " in the middle of a packet or other data.";
1960 case WTAP_ERR_SHORT_WRITE:
1961 errmsg = "A full header couldn't be written to the file \"%s\".";
1966 errmsg = "The path to the file \"%s\" does not exist.";
1968 errmsg = "The file \"%s\" does not exist.";
1973 errmsg = "You do not have permission to create or write to the file \"%s\".";
1975 errmsg = "You do not have permission to read the file \"%s\".";
1979 errmsg = "\"%s\" is a directory (folder), not a file.";
1983 snprintf(errmsg_errno, sizeof(errmsg_errno),
1984 "The file \"%%s\" could not be opened: %s.",
1985 wtap_strerror(err));
1986 errmsg = errmsg_errno;
1993 file_rename_error_message(int err)
1996 static char errmsg_errno[1024+1];
2001 errmsg = "The path to the file \"%s\" does not exist.";
2005 errmsg = "You do not have permission to move the capture file to \"%s\".";
2009 snprintf(errmsg_errno, sizeof(errmsg_errno),
2010 "The file \"%%s\" could not be moved: %s.",
2011 wtap_strerror(err));
2012 errmsg = errmsg_errno;
2019 file_read_error_message(int err)
2021 static char errmsg_errno[1024+1];
2023 snprintf(errmsg_errno, sizeof(errmsg_errno),
2024 "An error occurred while reading from the file \"%%s\": %s.",
2025 wtap_strerror(err));
2026 return errmsg_errno;
2030 file_write_error_message(int err)
2033 static char errmsg_errno[1024+1];
2038 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
2043 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2048 snprintf(errmsg_errno, sizeof(errmsg_errno),
2049 "An error occurred while writing to the file \"%%s\": %s.",
2050 wtap_strerror(err));
2051 errmsg = errmsg_errno;
2057 /* Check for write errors - if the file is being written to an NFS server,
2058 a write error may not show up until the file is closed, as NFS clients
2059 might not send writes to the server until the "write()" call finishes,
2060 so that the write may fail on the server but the "write()" may succeed. */
2062 file_close_error_message(int err)
2065 static char errmsg_errno[1024+1];
2069 case WTAP_ERR_CANT_CLOSE:
2070 errmsg = "The file \"%s\" couldn't be closed for some unknown reason.";
2073 case WTAP_ERR_SHORT_WRITE:
2074 errmsg = "Not all the packets could be written to the file \"%s\".";
2078 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
2083 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2088 snprintf(errmsg_errno, sizeof(errmsg_errno),
2089 "An error occurred while closing the file \"%%s\": %s.",
2090 wtap_strerror(err));
2091 errmsg = errmsg_errno;
2098 /* Copies a file in binary mode, for those operating systems that care about
2100 * Returns TRUE on success, FALSE on failure. If a failure, it also
2101 * displays a simple dialog window with the error message.
2104 copy_binary_file(char *from_filename, char *to_filename)
2106 int from_fd, to_fd, nread, nwritten, err;
2107 guint8 pd[65536]; /* XXX - Hmm, 64K here, 64K in save_cap_file(),
2108 perhaps we should make just one 64K buffer. */
2110 /* Copy the raw bytes of the file. */
2111 from_fd = open(from_filename, O_RDONLY | O_BINARY);
2114 simple_dialog(ESD_TYPE_CRIT, NULL,
2115 file_open_error_message(err, TRUE), from_filename);
2119 /* Use open() instead of creat() so that we can pass the O_BINARY
2120 flag, which is relevant on Win32; it appears that "creat()"
2121 may open the file in text mode, not binary mode, but we want
2122 to copy the raw bytes of the file, so we need the output file
2123 to be open in binary mode. */
2124 to_fd = open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
2127 simple_dialog(ESD_TYPE_CRIT, NULL,
2128 file_open_error_message(err, TRUE), to_filename);
2133 while ((nread = read(from_fd, pd, sizeof pd)) > 0) {
2134 nwritten = write(to_fd, pd, nread);
2135 if (nwritten < nread) {
2139 err = WTAP_ERR_SHORT_WRITE;
2140 simple_dialog(ESD_TYPE_CRIT, NULL,
2141 file_write_error_message(err), to_filename);
2149 simple_dialog(ESD_TYPE_CRIT, NULL,
2150 file_read_error_message(err), from_filename);
2156 if (close(to_fd) < 0) {
2158 simple_dialog(ESD_TYPE_CRIT, NULL,
2159 file_close_error_message(err), to_filename);