1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/* packet-ntp.h
* Definitions for packet disassembly structures and routines
*
* $Id: packet-ntp.h,v 1.4 2000/04/08 07:07:32 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
* Joerg Mayer <jmayer@telemation.de>
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* This is from yahoolib.h from gtkyahoo */
#ifndef PACKET_NTP_H
#define PACKET_NTP_H
#define NTP_LI_MASK 192
#define NTP_LI_NONE 0
#define NTP_LI_61 64
#define NTP_LI_59 128
#define NTP_LI_ALARM 192
#define NTP_VN_MASK 56
#define NTP_VN_R0 0
#define NTP_VN_R1 8
#define NTP_VN_R2 16
#define NTP_VN_3 24
#define NTP_VN_4 32
#define NTP_VN_R5 40
#define NTP_VN_R6 48
#define NTP_VN_R7 56
#define NTP_MODE_MASK 7
#define NTP_MODE_RSV 0
#define NTP_MODE_SYMACT 1
#define NTP_MODE_SYMPAS 2
#define NTP_MODE_CLIENT 3
#define NTP_MODE_SERVER 4
#define NTP_MODE_BCAST 5
#define NTP_MODE_CTRL 6
#define NTP_MODE_PRIV 7
/* NTP_BASETIME is infact epoch - ntp_start_time */
#define NTP_BASETIME 2208988800ul
#define NTP_TS_SIZE 100
/* packet structure based on one in xntp package */
/* to satisfy it's requirements, even though the code isn't copied
directly: */
/***********************************************************************
* *
* Copyright (c) David L. Mills 1992, 1993, 1994, 1995, 1996 *
* *
* Permission to use, copy, modify, and distribute this software and *
* its documentation for any purpose and without fee is hereby *
* granted, provided that the above copyright notice appears in all *
* copies and that both the copyright notice and this permission *
* notice appear in supporting documentation, and that the name *
* University of Delaware not be used in advertising or publicity *
* pertaining to distribution of the software without specific, *
* written prior permission. The University of Delaware makes no *
* representations about the suitability this software for any *
* purpose. It is provided "as is" without express or implied *
* warranty. *
**********************************************************************/
struct ntp_packet
{
unsigned char flags[1]; /* leap indicator, version and mode */ /* 0 */
unsigned char stratum[1]; /* peer's stratum */
unsigned char ppoll[1]; /* the peer polling interval */
char precision[1]; /* peer clock precision */
unsigned char rootdelay[4]; /* distance to primary clock */ /* 4 */
unsigned char rootdispersion[4]; /* clock dispersion */ /* 8 */
unsigned char refid[4]; /* reference clock ID */ /* 12-15 */
unsigned char reftime[8]; /* time peer clock was last updated */ /* 16-23 */
unsigned char org[8]; /* originate time stamp */ /* 24 */
unsigned char rec[8]; /* receive time stamp */ /* 32 */
unsigned char xmt[8]; /* transmit time stamp */
unsigned char keyid[4]; /* key identification */ /* 48 */
unsigned char mac[16]; /* message-authentication code */ /* 52 - 60 */
/* can also be 16, if MD5 instead of DES */
};
#endif
|
