forked from osmocom/wireshark
102 lines
4.0 KiB
C
102 lines
4.0 KiB
C
/* packet-ntp.h
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* Definitions for packet disassembly structures and routines
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*
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* $Id: packet-ntp.h,v 1.2 1999/10/22 06:30:45 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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* Joerg Mayer <jmayer@telemation.de>
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*
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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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/* This is from yahoolib.h from gtkyahoo */
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#ifndef PACKET_NTP_H
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#define PACKET_NTP_H
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#define NTP_LI_MASK 192
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#define NTP_LI_NONE 0
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#define NTP_LI_61 64
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#define NTP_LI_59 128
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#define NTP_LI_ALARM 192
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#define NTP_VN_MASK 56
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#define NTP_VN_R0 0
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#define NTP_VN_R1 8
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#define NTP_VN_R2 16
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#define NTP_VN_3 24
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#define NTP_VN_4 32
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#define NTP_VN_R5 40
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#define NTP_VN_R6 48
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#define NTP_VN_R7 56
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#define NTP_MODE_MASK 7
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#define NTP_MODE_RSV 0
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#define NTP_MODE_SYMACT 1
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#define NTP_MODE_SYMPAS 2
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#define NTP_MODE_CLIENT 3
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#define NTP_MODE_SERVER 4
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#define NTP_MODE_BCAST 5
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#define NTP_MODE_CTRL 6
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#define NTP_MODE_PRIV 7
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/* NTP_BASETIME is infact epoch - ntp_start_time */
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#define NTP_BASETIME 2208988800ul
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#define NTP_TS_SIZE 100
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/* packet structure based on one in xntp package */
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/* to satisfy it's requirements, even though the code isn't copied
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directly: */
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/***********************************************************************
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* *
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* Copyright (c) David L. Mills 1992, 1993, 1994, 1995, 1996 *
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* *
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* Permission to use, copy, modify, and distribute this software and *
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* its documentation for any purpose and without fee is hereby *
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* granted, provided that the above copyright notice appears in all *
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* copies and that both the copyright notice and this permission *
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* notice appear in supporting documentation, and that the name *
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* University of Delaware not be used in advertising or publicity *
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* pertaining to distribution of the software without specific, *
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* written prior permission. The University of Delaware makes no *
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* representations about the suitability this software for any *
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* purpose. It is provided "as is" without express or implied *
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* warranty. *
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**********************************************************************/
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struct ntp_packet
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{
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unsigned char flags[1]; /* leap indicator, version and mode */ /* 0 */
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unsigned char stratum[1]; /* peer's stratum */
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unsigned char ppoll[1]; /* the peer polling interval */
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char precision[1]; /* peer clock precision */
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unsigned char rootdelay[4]; /* distance to primary clock */ /* 4 */
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unsigned char rootdispersion[4]; /* clock dispersion */ /* 8 */
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unsigned char refid[4]; /* reference clock ID */ /* 12-15 */
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unsigned char reftime[8]; /* time peer clock was last updated */ /* 16-23 */
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unsigned char org[8]; /* originate time stamp */ /* 24 */
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unsigned char rec[8]; /* receive time stamp */ /* 32 */
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unsigned char xmt[8]; /* transmit time stamp */
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unsigned char keyid[4]; /* key identification */ /* 48 */
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unsigned char mac[16]; /* message-authentication code */ /* 52 - 60 */
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/* can also be 16, if MD5 instead of DES */
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};
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#endif
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