/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights * Reserved. This file contains Original Code and/or Modifications of * Original Code as defined in and that are subject to the Apple Public * Source License Version 1.0 (the 'License'). You may not use this file * except in compliance with the License. Please obtain a copy of the * License at http://www.apple.com/publicsource and read it before using * this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License." * * @APPLE_LICENSE_HEADER_END@ */ /* $Header: /cvs/Darwin/Commands/NeXT/network_cmds/tcpdump.tproj/ntp.h,v 1.1.1.1 1999/05/02 03:58:32 wsanchez Exp $ */ /* * Based on ntp.h from the U of MD implementation * This file is based on Version 2 of the NTP spec (RFC1119). */ /* * Definitions for the masses */ #define JAN_1970 2208988800 /* 1970 - 1900 in seconds */ /* * Structure definitions for NTP fixed point values * * 0 1 2 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Integer Part | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Fraction Part | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * * 0 1 2 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Integer Part | Fraction Part | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ struct l_fixedpt { u_int32_t int_part; u_int32_t fraction; }; struct s_fixedpt { u_short int_part; u_short fraction; }; /* ================= Table 3.3. Packet Variables ================= */ /* * 0 1 2 3 * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |LI | VN | Mode| Stratum | Poll | Precision | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Synchronizing Distance | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Synchronizing Dispersion | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Reference Clock Identifier | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | * | Reference Timestamp (64 bits) | * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | * | Originate Timestamp (64 bits) | * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | * | Receive Timestamp (64 bits) | * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | * | Transmit Timestamp (64 bits) | * | | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ struct ntpdata { u_char status; /* status of local clock and leap info */ u_char stratum; /* Stratum level */ u_char ppoll; /* poll value */ int precision:8; struct s_fixedpt distance; struct s_fixedpt dispersion; u_int32_t refid; struct l_fixedpt reftime; struct l_fixedpt org; struct l_fixedpt rec; struct l_fixedpt xmt; }; /* * Leap Second Codes (high order two bits) */ #define NO_WARNING 0x00 /* no warning */ #define PLUS_SEC 0x40 /* add a second (61 seconds) */ #define MINUS_SEC 0x80 /* minus a second (59 seconds) */ #define ALARM 0xc0 /* alarm condition (clock unsynchronized) */ /* * Clock Status Bits that Encode Version */ #define NTPVERSION_1 0x08 #define VERSIONMASK 0x38 #define LEAPMASK 0xc0 #define MODEMASK 0x07 /* * Code values */ #define MODE_UNSPEC 0 /* unspecified */ #define MODE_SYM_ACT 1 /* symmetric active */ #define MODE_SYM_PAS 2 /* symmetric passive */ #define MODE_CLIENT 3 /* client */ #define MODE_SERVER 4 /* server */ #define MODE_BROADCAST 5 /* broadcast */ #define MODE_RES1 6 /* reserved */ #define MODE_RES2 7 /* reserved */ /* * Stratum Definitions */ #define UNSPECIFIED 0 #define PRIM_REF 1 /* radio clock */ #define INFO_QUERY 62 /* **** THIS implementation dependent **** */ #define INFO_REPLY 63 /* **** THIS implementation dependent **** */