forked from osmocom/wireshark
77ec324774
remove all compiler warnings: a) prevent wrong malloc/free definitions by lex/yacc generated files b) add int/time_t casts - MSVC2005 is more "sensitive" about this than MSVC6 svn path=/trunk/; revision=21078
870 lines
28 KiB
C
870 lines
28 KiB
C
/* lanalyzer.c
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*
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* $Id$
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*
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* Wiretap Library
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* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <errno.h>
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#include "wtap-int.h"
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#include "file_wrappers.h"
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#include "buffer.h"
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#include "lanalyzer.h"
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/* The LANalyzer format is documented (at least in part) in Novell document
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TID022037, which can be found at, among other places:
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http://secinf.net/info/nw/lan/trace.txt
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*/
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/* LANalyzer board types (which indicate the type of network on which
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the capture was done). */
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#define BOARD_325 226 /* LANalyzer 325 (Ethernet) */
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#define BOARD_325TR 227 /* LANalyzer 325TR (Token-ring) */
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static const guint8 LA_HeaderRegularFake[] = {
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0x01,0x10,0x4c,0x00,0x01,0x05,0x54,0x72,0x61,0x63,0x65,0x20,0x44,0x69,0x73,0x70,
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0x6c,0x61,0x79,0x20,0x54,0x72,0x61,0x63,0x65,0x20,0x46,0x69,0x6c,0x65,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
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};
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static const guint8 LA_RxChannelNameFake[] = {
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0x06,0x10,0x80,0x00,0x43,0x68,0x61,0x6e ,0x6e,0x65,0x6c,0x31,0x00,0x43,0x68,0x61,
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0x6e,0x6e,0x65,0x6c,0x32,0x00,0x43,0x68 ,0x61,0x6e,0x6e,0x65,0x6c,0x33,0x00,0x43,
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0x68,0x61,0x6e,0x6e,0x65,0x6c,0x34,0x00 ,0x43,0x68,0x61,0x6e,0x6e,0x65,0x6c,0x35,
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0x00,0x43,0x68,0x61,0x6e,0x6e,0x65,0x6c ,0x36,0x00,0x43,0x68,0x61,0x6e,0x6e,0x65,
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0x6c,0x37,0x00,0x43,0x68,0x61,0x6e,0x6e ,0x65,0x6c,0x38,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00
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};
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static const guint8 LA_TxChannelNameFake[] = {
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0x0b,0x10,0x36,0x00 ,0x54,0x72,0x61,0x6e,0x73,0x31,0x00,0x00,
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0x00,0x54,0x72,0x61,0x6e,0x73,0x32,0x00 ,0x00,0x00,0x54,0x72,0x61,0x6e,0x73,0x33,
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0x00,0x00,0x00,0x54,0x72,0x61,0x6e,0x73 ,0x34,0x00,0x00,0x00,0x54,0x72,0x61,0x6e,
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0x73,0x35,0x00,0x00,0x00,0x54,0x72,0x61 ,0x6e,0x73,0x36,0x00,0x00,0x00
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};
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static const guint8 LA_RxTemplateNameFake[] = {
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0x35,0x10,
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0x90,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00
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};
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static const guint8 LA_TxTemplateNameFake[] = {
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0x36,0x10,0x36,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00
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};
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static const guint8 LA_DisplayOptionsFake[] = {
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0x0a,0x10,0x0a,0x01,
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0x00,0x00,0x01,0x00,0x01,0x02,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00
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};
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static const guint8 LA_CyclicInformationFake[] = {
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0x09,0x10,0x1a,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
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};
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static gboolean lanalyzer_read(wtap *wth, int *err, gchar **err_info,
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gint64 *data_offset);
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static gboolean lanalyzer_seek_read(wtap *wth, gint64 seek_off,
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union wtap_pseudo_header *pseudo_header, guchar *pd, int length,
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int *err, gchar **err_info);
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static void lanalyzer_close(wtap *wth);
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static gboolean lanalyzer_dump_close(wtap_dumper *wdh, int *err);
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int lanalyzer_open(wtap *wth, int *err, gchar **err_info)
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{
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int bytes_read;
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char LE_record_type[2];
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char LE_record_length[2];
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char summary[210];
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guint16 board_type, mxslc;
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guint16 record_type, record_length;
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guint8 cr_day, cr_month;
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guint16 cr_year;
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struct tm tm;
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errno = WTAP_ERR_CANT_READ;
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bytes_read = file_read(LE_record_type, 1, 2, wth->fh);
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bytes_read += file_read(LE_record_length, 1, 2, wth->fh);
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if (bytes_read != 4) {
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*err = file_error(wth->fh);
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if (*err != 0)
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return -1;
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return 0;
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}
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wth->data_offset += 4;
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record_type = pletohs(LE_record_type);
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record_length = pletohs(LE_record_length); /* make sure to do this for while() loop */
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if (record_type != RT_HeaderRegular && record_type != RT_HeaderCyclic) {
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return 0;
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}
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/* If we made it this far, then the file is a LANAlyzer file.
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* Let's get some info from it. Note that we get wth->snapshot_length
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* from a record later in the file. */
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wth->file_type = WTAP_FILE_LANALYZER;
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wth->capture.lanalyzer = g_malloc(sizeof(lanalyzer_t));
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wth->subtype_read = lanalyzer_read;
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wth->subtype_seek_read = lanalyzer_seek_read;
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wth->subtype_close = lanalyzer_close;
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wth->snapshot_length = 0;
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wth->tsprecision = WTAP_FILE_TSPREC_NSEC;
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/* Read records until we find the start of packets */
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while (1) {
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if (file_seek(wth->fh, record_length, SEEK_CUR, err) == -1) {
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g_free(wth->capture.lanalyzer);
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return -1;
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}
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wth->data_offset += record_length;
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errno = WTAP_ERR_CANT_READ;
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bytes_read = file_read(LE_record_type, 1, 2, wth->fh);
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bytes_read += file_read(LE_record_length, 1, 2, wth->fh);
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if (bytes_read != 4) {
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*err = file_error(wth->fh);
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if (*err != 0) {
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g_free(wth->capture.lanalyzer);
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return -1;
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}
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g_free(wth->capture.lanalyzer);
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return 0;
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}
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wth->data_offset += 4;
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record_type = pletohs(LE_record_type);
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record_length = pletohs(LE_record_length);
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/*g_message("Record 0x%04X Length %d", record_type, record_length);*/
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switch (record_type) {
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/* Trace Summary Record */
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case RT_Summary:
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errno = WTAP_ERR_CANT_READ;
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bytes_read = file_read(summary, 1, sizeof summary,
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wth->fh);
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if (bytes_read != sizeof summary) {
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*err = file_error(wth->fh);
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if (*err != 0) {
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g_free(wth->capture.lanalyzer);
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return -1;
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}
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g_free(wth->capture.lanalyzer);
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return 0;
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}
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wth->data_offset += sizeof summary;
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/* Assume that the date of the creation of the trace file
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* is the same date of the trace. Lanalyzer doesn't
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* store the creation date/time of the trace, but only of
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* the file. Unless you traced at 11:55 PM and saved at 00:05
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* AM, the assumption that trace.date == file.date is true.
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*/
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cr_day = summary[0];
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cr_month = summary[1];
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cr_year = pletohs(&summary[2]);
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/*g_message("Day %d Month %d Year %d (%04X)", cr_day, cr_month,
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cr_year, cr_year);*/
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/* Get capture start time. I learned how to do
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* this from Guy's code in ngsniffer.c
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*/
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tm.tm_year = cr_year - 1900;
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tm.tm_mon = cr_month - 1;
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tm.tm_mday = cr_day;
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tm.tm_hour = 0;
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tm.tm_min = 0;
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tm.tm_sec = 0;
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tm.tm_isdst = -1;
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wth->capture.lanalyzer->start = mktime(&tm);
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/*g_message("Day %d Month %d Year %d", tm.tm_mday,
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tm.tm_mon, tm.tm_year);*/
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mxslc = pletohs(&summary[30]);
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wth->snapshot_length = mxslc;
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record_length = 0; /* to fake the next iteration of while() */
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board_type = pletohs(&summary[188]);
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switch (board_type) {
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case BOARD_325:
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wth->file_encap = WTAP_ENCAP_ETHERNET;
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break;
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case BOARD_325TR:
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wth->file_encap = WTAP_ENCAP_TOKEN_RING;
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break;
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default:
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g_free(wth->capture.lanalyzer);
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*err = WTAP_ERR_UNSUPPORTED_ENCAP;
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*err_info = g_strdup_printf("lanalyzer: board type %u unknown",
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board_type);
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return -1;
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}
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break;
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/* Trace Packet Data Record */
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case RT_PacketData:
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/* Go back header number ob ytes so that lanalyzer_read
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* can read this header */
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if (file_seek(wth->fh, -bytes_read, SEEK_CUR, err) == -1) {
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g_free(wth->capture.lanalyzer);
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return -1;
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}
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wth->data_offset -= bytes_read;
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return 1;
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default:
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; /* no action */
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}
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}
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}
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#define DESCRIPTOR_LEN 32
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/* Read the next packet */
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static gboolean lanalyzer_read(wtap *wth, int *err, gchar **err_info,
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gint64 *data_offset)
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{
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int packet_size = 0;
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int bytes_read;
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char LE_record_type[2];
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char LE_record_length[2];
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guint16 record_type, record_length;
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gchar descriptor[DESCRIPTOR_LEN];
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guint16 time_low, time_med, time_high, true_size;
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guint64 t;
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time_t tsecs;
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/* read the record type and length. */
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errno = WTAP_ERR_CANT_READ;
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bytes_read = file_read(LE_record_type, 1, 2, wth->fh);
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if (bytes_read != 2) {
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*err = file_error(wth->fh);
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if (*err == 0 && bytes_read != 0) {
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*err = WTAP_ERR_SHORT_READ;
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}
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return FALSE;
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}
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wth->data_offset += 2;
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bytes_read = file_read(LE_record_length, 1, 2, wth->fh);
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if (bytes_read != 2) {
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*err = file_error(wth->fh);
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if (*err == 0)
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*err = WTAP_ERR_SHORT_READ;
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return FALSE;
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}
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wth->data_offset += 2;
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record_type = pletohs(LE_record_type);
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record_length = pletohs(LE_record_length);
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/* Only Trace Packet Data Records should occur now that we're in
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* the middle of reading packets. If any other record type exists
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* after a Trace Packet Data Record, mark it as an error. */
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if (record_type != RT_PacketData) {
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*err = WTAP_ERR_BAD_RECORD;
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*err_info = g_strdup_printf("lanalyzer: record type %u seen after trace summary record",
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record_type);
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return FALSE;
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}
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else {
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packet_size = record_length - DESCRIPTOR_LEN;
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}
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|
|
/* Read the descriptor data */
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(descriptor, 1, DESCRIPTOR_LEN, wth->fh);
|
|
if (bytes_read != DESCRIPTOR_LEN) {
|
|
*err = file_error(wth->fh);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
wth->data_offset += DESCRIPTOR_LEN;
|
|
|
|
/* Read the packet data */
|
|
buffer_assure_space(wth->frame_buffer, packet_size);
|
|
*data_offset = wth->data_offset;
|
|
errno = WTAP_ERR_CANT_READ;
|
|
bytes_read = file_read(buffer_start_ptr(wth->frame_buffer), 1,
|
|
packet_size, wth->fh);
|
|
|
|
if (bytes_read != packet_size) {
|
|
*err = file_error(wth->fh);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
wth->data_offset += packet_size;
|
|
|
|
true_size = pletohs(&descriptor[4]);
|
|
packet_size = pletohs(&descriptor[6]);
|
|
|
|
/*
|
|
* OK, is the frame data size greater than than what's left of the
|
|
* record?
|
|
*/
|
|
if (packet_size > record_length - DESCRIPTOR_LEN) {
|
|
/*
|
|
* Yes - treat this as an error.
|
|
*/
|
|
*err = WTAP_ERR_BAD_RECORD;
|
|
*err_info = g_strdup("lanalyzer: Record length is less than packet size");
|
|
return FALSE;
|
|
}
|
|
|
|
time_low = pletohs(&descriptor[8]);
|
|
time_med = pletohs(&descriptor[10]);
|
|
time_high = pletohs(&descriptor[12]);
|
|
t = (((guint64)time_low) << 0) + (((guint64)time_med) << 16) +
|
|
(((guint64)time_high) << 32);
|
|
tsecs = (time_t) (t/2000000);
|
|
wth->phdr.ts.secs = tsecs + wth->capture.lanalyzer->start;
|
|
wth->phdr.ts.nsecs = ((guint32) (t - tsecs*2000000)) * 500;
|
|
|
|
if (true_size - 4 >= packet_size) {
|
|
/*
|
|
* It appears that the "true size" includes the FCS;
|
|
* make it reflect the non-FCS size (the "packet size"
|
|
* appears never to include the FCS, even if no slicing
|
|
* is done).
|
|
*/
|
|
true_size -= 4;
|
|
}
|
|
wth->phdr.len = true_size;
|
|
wth->phdr.caplen = packet_size;
|
|
|
|
switch (wth->file_encap) {
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
/* We assume there's no FCS in this frame. */
|
|
wth->pseudo_header.eth.fcs_len = 0;
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean lanalyzer_seek_read(wtap *wth, gint64 seek_off,
|
|
union wtap_pseudo_header *pseudo_header, guchar *pd, int length,
|
|
int *err, gchar **err_info _U_)
|
|
{
|
|
int bytes_read;
|
|
|
|
if (file_seek(wth->random_fh, seek_off, SEEK_SET, err) == -1)
|
|
return FALSE;
|
|
|
|
/*
|
|
* Read the packet data.
|
|
*/
|
|
bytes_read = file_read(pd, sizeof(guint8), length, wth->random_fh);
|
|
if (bytes_read != length) {
|
|
*err = file_error(wth->random_fh);
|
|
if (*err == 0)
|
|
*err = WTAP_ERR_SHORT_READ;
|
|
return FALSE;
|
|
}
|
|
|
|
switch (wth->file_encap) {
|
|
|
|
case WTAP_ENCAP_ETHERNET:
|
|
/* We assume there's no FCS in this frame. */
|
|
pseudo_header->eth.fcs_len = 0;
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
lanalyzer_close(wtap *wth)
|
|
{
|
|
g_free(wth->capture.lanalyzer);
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
* Returns 0 or error
|
|
* Write one block with error control
|
|
*---------------------------------------------------*/
|
|
static int swrite(const void* what, guint size, FILE *hd)
|
|
{
|
|
size_t nwritten;
|
|
|
|
nwritten = fwrite(what, 1, size, hd);
|
|
if (nwritten != size) {
|
|
if (nwritten == 0 && ferror(hd))
|
|
return errno;
|
|
else
|
|
return WTAP_ERR_SHORT_WRITE;
|
|
}
|
|
return 0; /* ok */
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
* Returns 0 or error
|
|
* Write one block with error control
|
|
*---------------------------------------------------*/
|
|
static int s0write(guint cnt, FILE *hd)
|
|
{
|
|
static guint8 z64[64];
|
|
size_t nwritten;
|
|
size_t snack;
|
|
|
|
while (cnt) {
|
|
snack = cnt > 64 ? 64 : cnt;
|
|
nwritten = fwrite(z64, 1, snack, hd);
|
|
if (nwritten != snack) {
|
|
if (nwritten == 0 && ferror(hd))
|
|
return errno;
|
|
else
|
|
return WTAP_ERR_SHORT_WRITE;
|
|
}
|
|
cnt -= snack;
|
|
}
|
|
return 0; /* ok */
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
* Returns 0 or error
|
|
* Write one block with error control
|
|
*---------------------------------------------------*/
|
|
static int s8write(const guint8 s8, FILE *hd)
|
|
{
|
|
size_t nwritten;
|
|
|
|
nwritten = fwrite(&s8, 1, 1, hd);
|
|
if (nwritten != 1) {
|
|
if (nwritten == 0 && ferror(hd))
|
|
return errno;
|
|
else
|
|
return WTAP_ERR_SHORT_WRITE;
|
|
}
|
|
return 0; /* ok */
|
|
}
|
|
/*---------------------------------------------------
|
|
* Returns 0 or error
|
|
* Write one block with error control
|
|
*---------------------------------------------------*/
|
|
static int s16write(const guint16 s16, FILE *hd)
|
|
{
|
|
size_t nwritten;
|
|
|
|
nwritten = fwrite(&s16, 1, 2, hd);
|
|
if (nwritten != 2) {
|
|
if (nwritten == 0 && ferror(hd))
|
|
return errno;
|
|
else
|
|
return WTAP_ERR_SHORT_WRITE;
|
|
}
|
|
return 0; /* ok */
|
|
}
|
|
/*---------------------------------------------------
|
|
* Returns 0 or error
|
|
* Write one block with error control
|
|
*---------------------------------------------------*/
|
|
static int s32write(const guint32 s32, FILE *hd)
|
|
{
|
|
size_t nwritten;
|
|
|
|
nwritten = fwrite(&s32, 1, 4, hd);
|
|
if (nwritten != 4) {
|
|
if (nwritten == 0 && ferror(hd))
|
|
return errno;
|
|
else
|
|
return WTAP_ERR_SHORT_WRITE;
|
|
}
|
|
return 0; /* ok */
|
|
}
|
|
/*---------------------------------------------------
|
|
*
|
|
* calculates C.c = A.a - B.b
|
|
*---------------------------------------------------*/
|
|
static void my_timersub(const struct timeval *a,
|
|
const struct timeval *b,
|
|
struct timeval *c)
|
|
{
|
|
gint32 usec = a->tv_usec;
|
|
|
|
c->tv_sec = a->tv_sec - b->tv_sec;
|
|
if (b->tv_usec > usec) {
|
|
c->tv_sec--;
|
|
usec += 1000000;
|
|
}
|
|
c->tv_usec = usec - b->tv_usec;
|
|
}
|
|
/*---------------------------------------------------
|
|
* Write a record for a packet to a dump file.
|
|
* Returns TRUE on success, FALSE on failure.
|
|
*---------------------------------------------------*/
|
|
static gboolean lanalyzer_dump(wtap_dumper *wdh,
|
|
const struct wtap_pkthdr *phdr,
|
|
const union wtap_pseudo_header *pseudo_header _U_,
|
|
const guchar *pd, int *err)
|
|
{
|
|
double x;
|
|
int i;
|
|
int len;
|
|
struct timeval tv;
|
|
|
|
LA_TmpInfo *itmp = (LA_TmpInfo*)(wdh->dump.opaque);
|
|
struct timeval td;
|
|
int thisSize = phdr->caplen + LA_PacketRecordSize + LA_RecordHeaderSize;
|
|
|
|
if (wdh->bytes_dumped + thisSize > LA_ProFileLimit) {
|
|
/* printf(" LA_ProFileLimit reached\n"); */
|
|
*err = EFBIG;
|
|
return FALSE; /* and don't forget the header */
|
|
}
|
|
|
|
len = phdr->caplen + (phdr->caplen ? LA_PacketRecordSize : 0);
|
|
|
|
*err = s16write(htoles(0x1005), wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(len), wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
|
|
tv.tv_sec = (long int) phdr->ts.secs;
|
|
tv.tv_usec = phdr->ts.nsecs / 1000;
|
|
|
|
if (!itmp->init) {
|
|
/* collect some information for the
|
|
* finally written header
|
|
*/
|
|
/* XXX - this conversion could probably improved, if the start uses ns */
|
|
itmp->start = tv;
|
|
itmp->pkts = 0;
|
|
itmp->init = TRUE;
|
|
itmp->encap = wdh->encap;
|
|
itmp->lastlen = 0;
|
|
}
|
|
|
|
my_timersub(&(tv),&(itmp->start),&td);
|
|
|
|
x = (double) td.tv_usec;
|
|
x += (double) td.tv_sec * 1000000;
|
|
x *= 2;
|
|
|
|
*err = s16write(htoles(0x0001), wdh->fh); /* pr.rx_channels */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(0x0008), wdh->fh); /* pr.rx_errors */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(phdr->len + 4), wdh->fh); /* pr.rx_frm_len */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(phdr->caplen), wdh->fh); /* pr.rx_frm_sln */
|
|
if (*err)
|
|
return FALSE;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
*err = s16write(htoles((guint16) x), wdh->fh);/* pr.rx_time[i] */
|
|
if (*err)
|
|
return FALSE;
|
|
x /= 0xffff;
|
|
}
|
|
|
|
*err = s32write(htolel(++itmp->pkts), wdh->fh); /* pr.pktno */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(itmp->lastlen), wdh->fh); /* pr.prlen */
|
|
if (*err)
|
|
return FALSE;
|
|
itmp->lastlen = len;
|
|
|
|
*err = s0write(12, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
|
|
*err = swrite(pd , phdr->caplen , wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
|
|
wdh->bytes_dumped += thisSize;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
* Returns 0 if we could write the specified encapsulation type,
|
|
* an error indication otherwise.
|
|
*---------------------------------------------------*/
|
|
int lanalyzer_dump_can_write_encap(int encap)
|
|
{
|
|
/* Per-packet encapsulations aren't supported. */
|
|
if (encap == WTAP_ENCAP_PER_PACKET)
|
|
return WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED;
|
|
|
|
if ( encap != WTAP_ENCAP_ETHERNET
|
|
&& encap != WTAP_ENCAP_TOKEN_RING )
|
|
return WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
/*
|
|
* printf("lanalyzer_dump_can_write_encap(%d)\n",encap);
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
* Returns TRUE on success, FALSE on failure; sets "*err" to an
|
|
* error code on failure
|
|
*---------------------------------------------------*/
|
|
gboolean lanalyzer_dump_open(wtap_dumper *wdh, gboolean cant_seek, int *err)
|
|
{
|
|
int jump;
|
|
void *tmp;
|
|
|
|
/* This is a LANalyzer file. We can't fill in some fields in the
|
|
header until all the packets have been written, so we can't
|
|
write to a pipe. */
|
|
if (cant_seek) {
|
|
*err = WTAP_ERR_CANT_WRITE_TO_PIPE;
|
|
return FALSE;
|
|
}
|
|
|
|
tmp = g_malloc(sizeof(LA_TmpInfo));
|
|
if (!tmp) {
|
|
*err = errno;
|
|
return FALSE;
|
|
}
|
|
|
|
((LA_TmpInfo*)tmp)->init = FALSE;
|
|
wdh->dump.opaque = tmp;
|
|
wdh->subtype_write = lanalyzer_dump;
|
|
wdh->subtype_close = lanalyzer_dump_close;
|
|
|
|
/* Some of the fields in the file header aren't known yet so
|
|
just skip over it for now. It will be created after all
|
|
of the packets have been written. */
|
|
|
|
jump = sizeof (LA_HeaderRegularFake)
|
|
+ sizeof (LA_RxChannelNameFake)
|
|
+ sizeof (LA_TxChannelNameFake)
|
|
+ sizeof (LA_RxTemplateNameFake)
|
|
+ sizeof (LA_TxTemplateNameFake)
|
|
+ sizeof (LA_DisplayOptionsFake)
|
|
+ LA_SummaryRecordSize
|
|
+ LA_SubfileSummaryRecordSize
|
|
+ sizeof (LA_CyclicInformationFake)
|
|
+ LA_IndexRecordSize;
|
|
|
|
if (fseek(wdh->fh, jump, SEEK_SET) == -1) {
|
|
*err = errno;
|
|
return FALSE;
|
|
}
|
|
wdh->bytes_dumped = jump;
|
|
return TRUE;
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
*
|
|
*---------------------------------------------------*/
|
|
static gboolean lanalyzer_dump_header(wtap_dumper *wdh, int *err)
|
|
{
|
|
LA_TmpInfo *itmp = (LA_TmpInfo*)(wdh->dump.opaque);
|
|
struct tm *fT = localtime( (time_t *) &(itmp->start.tv_sec));
|
|
guint16 board_type = itmp->encap == WTAP_ENCAP_TOKEN_RING
|
|
? BOARD_325TR /* LANalyzer Board Type */
|
|
: BOARD_325; /* LANalyzer Board Type */
|
|
|
|
fseek(wdh->fh, 0, SEEK_SET);
|
|
|
|
*err = swrite(&LA_HeaderRegularFake, sizeof LA_HeaderRegularFake, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = swrite(&LA_RxChannelNameFake , sizeof LA_RxChannelNameFake , wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = swrite(&LA_TxChannelNameFake , sizeof LA_TxChannelNameFake , wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = swrite(&LA_RxTemplateNameFake, sizeof LA_RxTemplateNameFake, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = swrite(&LA_TxTemplateNameFake, sizeof LA_TxTemplateNameFake, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = swrite(&LA_DisplayOptionsFake, sizeof LA_DisplayOptionsFake, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
/*-----------------------------------------------------------------*/
|
|
*err = s16write(htoles(RT_Summary), wdh->fh); /* rid */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(SummarySize), wdh->fh); /* rlen */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_mday, wdh->fh); /* s.datcre.day */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) (fT->tm_mon+1), wdh->fh); /* s.datcre.mon */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(fT->tm_year + 1900), wdh->fh);/* s.datcre.year */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_mday, wdh->fh); /* s.datclo.day */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) (fT->tm_mon+1), wdh->fh); /* s.datclo.mon */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(fT->tm_year + 1900), wdh->fh);/* s.datclo.year */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_sec, wdh->fh); /* s.timeopn.second */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_min, wdh->fh); /* s.timeopn.minute */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_hour, wdh->fh); /* s.timeopn.hour */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_mday, wdh->fh); /* s.timeopn.mday */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(2, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_sec, wdh->fh); /* s.timeclo.second */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_min, wdh->fh); /* s.timeclo.minute */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_hour, wdh->fh); /* s.timeclo.hour */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s8write((guint8) fT->tm_mday, wdh->fh); /* s.timeclo.mday */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(2, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(6, wdh->fh); /* EAddr == 0 */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(1), wdh->fh); /* s.mxseqno */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(0), wdh->fh); /* s.slcoffo */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(1514), wdh->fh); /* s.mxslc */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s32write(htolel(itmp->pkts), wdh->fh); /* s.totpktt */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(12, wdh->fh); /* statrg == 0; ? -1*/
|
|
if (*err) /* stptrg == 0; ? -1*/
|
|
return FALSE; /* s.mxpkta[0]=0 */
|
|
*err = s32write(htolel(itmp->pkts), wdh->fh); /* sr.s.mxpkta[1] */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(34*4, wdh->fh); /* s.mxpkta[2-33]=0 */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(board_type), wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(20, wdh->fh); /* board_version == 0 */
|
|
if (*err)
|
|
return FALSE;
|
|
/*-----------------------------------------------------------------*/
|
|
*err = s16write(htoles(RT_SubfileSummary), wdh->fh); /* ssr.rid */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(LA_SubfileSummaryRecordSize-4), wdh->fh); /* ssr.rlen */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(1), wdh->fh); /* ssr.seqno */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s32write(htolel(itmp->pkts), wdh->fh); /* ssr.totpkts */
|
|
if (*err)
|
|
return FALSE;
|
|
/*-----------------------------------------------------------------*/
|
|
*err = swrite(&LA_CyclicInformationFake, sizeof LA_CyclicInformationFake, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
/*-----------------------------------------------------------------*/
|
|
*err = s16write(htoles(RT_Index), wdh->fh); /* rid */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(LA_IndexRecordSize -4), wdh->fh);/* rlen */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s16write(htoles(LA_IndexSize), wdh->fh); /* idxsp */
|
|
if (*err)
|
|
return FALSE;
|
|
*err = s0write(LA_IndexRecordSize - 6, wdh->fh);
|
|
if (*err)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*---------------------------------------------------
|
|
* Finish writing to a dump file.
|
|
* Returns TRUE on success, FALSE on failure.
|
|
*---------------------------------------------------*/
|
|
static gboolean lanalyzer_dump_close(wtap_dumper *wdh, int *err)
|
|
{
|
|
lanalyzer_dump_header(wdh,err);
|
|
return *err ? FALSE : TRUE;
|
|
}
|