nfs-utils-1.2.2/support/nsm/sm_inter.x

/*
 * Copyright (C) 1986 Sun Microsystems, Inc.
 * Modified by Jeffrey A. Uphoff, 1995, 1997-1999.
 * Modified by Olaf Kirch, 1996.
 * Modified by H.J. Lu, 1998.
 *
 * NSM for Linux.
 */

/*
 * Copyright (c) 2009, Sun Microsystems, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - 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.
 * - Neither the name of Sun Microsystems, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
 */

/*
 * Status monitor protocol specification
 */

#ifdef RPC_CLNT
%#include <string.h>
#endif

program SM_PROG { 
	version SM_VERS  {
		/* res_stat = stat_succ if status monitor agrees to monitor */
		/* res_stat = stat_fail if status monitor cannot monitor */
		/* if res_stat == stat_succ, state = state number of site sm_name */
		struct sm_stat_res			 SM_STAT(struct sm_name) = 1;

		/* res_stat = stat_succ if status monitor agrees to monitor */
		/* res_stat = stat_fail if status monitor cannot monitor */
		/* stat consists of state number of local site */
		struct sm_stat_res			 SM_MON(struct mon) = 2;

		/* stat consists of state number of local site */
		struct sm_stat				 SM_UNMON(struct mon_id) = 3;

		/* stat consists of state number of local site */
		struct sm_stat				 SM_UNMON_ALL(struct my_id) = 4;

		void					 SM_SIMU_CRASH(void) = 5;

		void					 SM_NOTIFY(struct stat_chge) = 6;

	} = 1;
} = 100024;

const	SM_MAXSTRLEN = 1024;
const	SM_PRIV_SIZE = 16;

struct sm_name {
	string mon_name<SM_MAXSTRLEN>;
};

struct my_id {
	string	 my_name<SM_MAXSTRLEN>;		/* name of the site iniates the monitoring request*/
	int	my_prog;			/* rpc program # of the requesting process */
	int	my_vers;			/* rpc version # of the requesting process */
	int	my_proc;			/* rpc procedure # of the requesting process */
};

struct mon_id {
	string	mon_name<SM_MAXSTRLEN>;		/* name of the site to be monitored */
	struct my_id my_id;
};


struct mon {
	struct mon_id mon_id;
	opaque priv[SM_PRIV_SIZE]; 		/* private information to store at monitor for requesting process */
};

struct stat_chge {
	string	mon_name<SM_MAXSTRLEN>;		/* name of the site that had the state change */
	int     state;
};

/*
 * state # of status monitor monitonically increases each time
 * status of the site changes:
 * an even number (>= 0) indicates the site is down and
 * an odd number (> 0) indicates the site is up;
 */
struct sm_stat {
	int state;		/* state # of status monitor */
};

enum res {
	stat_succ = 0,		/* status monitor agrees to monitor */
	stat_fail = 1		/* status monitor cannot monitor */
};

struct sm_stat_res {
	res res_stat;
	int state;
};

/* 
 * structure of the status message sent back by the status monitor
 * when monitor site status changes
 */
struct status {
	string mon_name<SM_MAXSTRLEN>;
	int state;
	opaque priv[SM_PRIV_SIZE]; /* stored private information */
};

%#define SM_INTER_X