/*

 * Copyright (C) 2010  Miroslav Lichvar <mlichvar@redhat.com>

 * 

 * 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, see <http://www.gnu.org/licenses/>.

 */

#ifndef PROTOCOL_H

#define PROTOCOL_H

#include "sysheaders.h"

#define REQ_REGISTER 1

#define REQ_GETTIME 2

#define REQ_SETTIME 3

#define REQ_ADJTIMEX 4

#define REQ_ADJTIME 5

#define REQ_SELECT 6

#define REQ_SEND 7

#define REQ_RECV 8

#define REQ_GETREFSAMPLE 9

#define REQ_GETREFOFFSETS 10

#define REQ_DEREGISTER 11

struct Request_header {

	int request;

	int _pad;

};

struct Request_register {

	unsigned int node;

};

struct Reply_register {

	unsigned int subnets;

};

struct Reply_gettime {

	double real_time;

	double monotonic_time;

	double network_time;

};

struct Request_settime {

	double time;

};

struct Request_adjtimex {

	struct timex timex;

};

struct Reply_adjtimex {

	int ret;

	int _pad;

	struct timex timex;

};

struct Request_adjtime {

	struct timeval tv;

};

struct Reply_adjtime {

	struct timeval tv;

};

struct Request_select {

	double timeout;

	int read;

	int _pad;

};

#define REPLY_SELECT_TIMEOUT 0

#define REPLY_SELECT_NORMAL 1

#define REPLY_SELECT_BROADCAST 2

#define REPLY_SELECT_TERMINATE 3

struct Reply_select {

	int ret;

	unsigned int subnet; /* for NORMAL or BROADCAST */

	unsigned int dst_port; /* for NORMAL or BROADCAST */

	struct Reply_gettime time;

};

#define MAX_PACKET_SIZE 4000

struct Request_send {

	unsigned int subnet;

	unsigned int to;

	unsigned int src_port;

	unsigned int dst_port;

	unsigned int len;

	char data[MAX_PACKET_SIZE];

};

struct Reply_recv {

	unsigned int subnet;

	unsigned int from;

	unsigned int src_port;

	unsigned int dst_port;

	unsigned int len;

	char data[MAX_PACKET_SIZE];

};

struct Reply_getrefsample {

	double time;

	double offset;

	int valid;

	int _pad;

};

#define REPLY_GETREFOFFSETS_SIZE 1024

struct Reply_getrefoffsets {

	double offsets[REPLY_GETREFOFFSETS_SIZE];

};

union Request_data {

	struct Request_register _register;

	struct Request_settime settime;

	struct Request_adjtimex adjtimex;

	struct Request_adjtime adjtime;

	struct Request_select select;

	struct Request_send send;

};

union Reply_data {

	struct Reply_register _register;

	struct Reply_gettime gettime;

	struct Reply_adjtimex adjtimex;

	struct Reply_adjtime adjtime;

	struct Reply_select select;

	struct Reply_recv recv;

	struct Reply_getrefsample getrefsample;

	struct Reply_getrefoffsets getrefoffsets;

};

struct Request_packet {

	struct Request_header header;

	union Request_data data;

};

struct Reply_packet {

	union Reply_data data;

};

#endif