-/* $Header: /tcpdump/master/tcpdump/ntp.h,v 1.8 2004-01-28 14:34:50 hannes Exp $ */
-
/*
- * Based on ntp.h from the U of MD implementation
- * This file is based on Version 2 of the NTP spec (RFC1119).
+ * Copyright (c) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
*/
-/*
- * Definitions for the masses
- */
-#define JAN_1970 2208988800U /* 1970 - 1900 in seconds */
+#include "netdissect-stdinc.h"
+
+#include "netdissect.h"
/*
* Structure definitions for NTP fixed point values
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct l_fixedpt {
- u_int32_t int_part;
- u_int32_t fraction;
+ nd_uint32_t int_part;
+ nd_uint32_t fraction;
};
struct s_fixedpt {
- u_int16_t int_part;
- u_int16_t fraction;
-};
-
-/* rfc2030
- * 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 |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Root Delay |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Root Dispersion |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Reference Identifier |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | |
- * | Reference Timestamp (64) |
- * | |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | |
- * | Originate Timestamp (64) |
- * | |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | |
- * | Receive Timestamp (64) |
- * | |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | |
- * | Transmit Timestamp (64) |
- * | |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Key Identifier (optional) (32) |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | |
- * | |
- * | Message Digest (optional) (128) |
- * | |
- * | |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
-
-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 root_delay;
- struct s_fixedpt root_dispersion;
- u_int32_t refid;
- struct l_fixedpt ref_timestamp;
- struct l_fixedpt org_timestamp;
- struct l_fixedpt rec_timestamp;
- struct l_fixedpt xmt_timestamp;
- u_int32_t key_id;
- u_int8_t message_digest[16];
+ nd_uint16_t int_part;
+ nd_uint16_t fraction;
};
-/*
- * 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 **** */
+void p_ntp_time_fmt(netdissect_options *, const char *fmt,
+ const struct l_fixedpt *);
+void p_ntp_time(netdissect_options *, const struct l_fixedpt *);
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