/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright (c) 1983, 1993
 *      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 the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _PROTOCOLS_TIMED_H_
#define _PROTOCOLS_TIMED_H_

/*
 * Time Synchronization Protocol
 */

#define TSPVERSION      1
#define ANYADDR         NULL

struct tsp {
        u_int8_t        tsp_type;
        u_int8_t        tsp_vers;
        u_int16_t       tsp_seq;
        union {
                struct {
                        int32_t tv_sec;
                        int32_t tv_usec;
                } tspu_time;
                char tspu_hopcnt;
        } tsp_u;
        char tsp_name[MAXHOSTNAMELEN];
};

#define tsp_time        tsp_u.tspu_time
#define tsp_hopcnt      tsp_u.tspu_hopcnt

/*
 * Command types.
 */
#define TSP_ANY                 0       /* match any types */
#define TSP_ADJTIME             1       /* send adjtime */
#define TSP_ACK                 2       /* generic acknowledgement */
#define TSP_MASTERREQ           3       /* ask for master's name */
#define TSP_MASTERACK           4       /* acknowledge master request */
#define TSP_SETTIME             5       /* send network time */
#define TSP_MASTERUP            6       /* inform slaves that master is up */
#define TSP_SLAVEUP             7       /* slave is up but not polled */
#define TSP_ELECTION            8       /* advance candidature for master */
#define TSP_ACCEPT              9       /* support candidature of master */
#define TSP_REFUSE              10      /* reject candidature of master */
#define TSP_CONFLICT            11      /* two or more masters present */
#define TSP_RESOLVE             12      /* masters' conflict resolution */
#define TSP_QUIT                13      /* reject candidature if master is up */
#define TSP_DATE                14      /* reset the time (date command) */
#define TSP_DATEREQ             15      /* remote request to reset the time */
#define TSP_DATEACK             16      /* acknowledge time setting  */
#define TSP_TRACEON             17      /* turn tracing on */
#define TSP_TRACEOFF            18      /* turn tracing off */
#define TSP_MSITE               19      /* find out master's site */
#define TSP_MSITEREQ            20      /* remote master's site request */
#define TSP_TEST                21      /* for testing election algo */
#define TSP_SETDATE             22      /* New from date command */
#define TSP_SETDATEREQ          23      /* New remote for above */
#define TSP_LOOP                24      /* loop detection packet */

#define TSPTYPENUMBER           25

#ifdef TSPTYPES
static char const * const tsptype[] =
  { "ANY", "ADJTIME", "ACK", "MASTERREQ", "MASTERACK", "SETTIME", "MASTERUP",
  "SLAVEUP", "ELECTION", "ACCEPT", "REFUSE", "CONFLICT", "RESOLVE", "QUIT",
  "DATE", "DATEREQ", "DATEACK", "TRACEON", "TRACEOFF", "MSITE", "MSITEREQ",
  "TEST", "SETDATE", "SETDATEREQ", "LOOP" };
_Static_assert(sizeof(tsptype) / sizeof(const char *) == TSPTYPENUMBER,
    "Size of tsptype does not match TSPTYPENUMBER");
#endif

#endif /* !_TIMED_H_ */