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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2000 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef DSVCD_DSVCLOCKD_H
#define DSVCD_DSVCLOCKD_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/param.h>
#include <sys/types.h>
/*
* Data structures and constants that are shared between dsvclockd and
* libdhcpsvc. This protocol is project-private and is thus subject to
* change at any time.
*/
#ifdef __cplusplus
extern "C" {
#endif
#define DSVCD_DOOR_VERSION 1 /* current protocol version */
#define DSVCD_PATH "/usr/lib/inet/dsvclockd"
#define DSVCD_DOOR_FMT "/var/run/dsvclockd_%s_door"
typedef enum { DSVCD_LOCK, DSVCD_UNLOCK } dsvcd_reqtype_t;
typedef enum { DSVCD_NOLOCK, DSVCD_RDLOCK, DSVCD_WRLOCK } dsvcd_locktype_t;
typedef struct {
uint8_t rq_version; /* version of the API */
dsvcd_reqtype_t rq_reqtype; /* request type */
} dsvcd_request_t;
typedef struct {
uint8_t rp_version; /* version of the API */
int32_t rp_retval; /* DSVC_* return value */
} dsvcd_reply_t;
typedef struct {
dsvcd_request_t lrq_request; /* generic request header */
dsvcd_locktype_t lrq_locktype; /* reader or writer */
uint8_t lrq_nonblock; /* cannot block if true */
uint8_t lrq_crosshost; /* do cross-host synch */
/*
* The caller filling in this request must provide their current
* container version and a name for their container which is
* per-datastore unique (but need not be unique across datastores
* or different versions of the same container.)
*
* The `lrq_loctoken' field must contain a token which "names" a
* given location where the container exists -- note that a given
* location must have exactly one name, though it's permissible for
* more than one location to have the same name (in this case,
* containers from these locations will be synchronized with one
* another, which will hamper performance). Note that standard
* pathnames do not meet the first constraint (e.g., /var/dhcp and
* /var/../var/dhcp are two different names for the same location),
* but pathnames processed by realpath(3C) do.
*
* If the caller wants cross-host synchronization, then
* `lrq_crosshost' must be set and `lrq_loctoken' must be a
* realpath(3C)'d directory that all hosts can access.
*/
int lrq_conver;
char lrq_conname[64];
char lrq_loctoken[MAXPATHLEN];
} dsvcd_lock_request_t;
typedef struct {
dsvcd_request_t urq_request; /* generic request header */
} dsvcd_unlock_request_t;
#ifdef __cplusplus
}
#endif
#endif /* DSVCD_DSVCLOCKD_H */
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