common/sys/utssys.h

	utssys.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * 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) 1984, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */


/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_UTSSYS_H
#define _SYS_UTSSYS_H

#pragma ident   "%Z%%M% %I% %E% SMI"    /* SVr4.0 1.1 */

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Definitions related to the utssys() system call.
 */

/*
 * "commands" of utssys
 */
#define UTS_UNAME   0x0 /* obsolete */
#define UTS_USTAT   0x2 /* 1 was umask */
#define UTS_FUSERS  0x3

/*
 * Flags to UTS_FUSERS
 */
#define F_FILE_ONLY 0x01
#define F_CONTAINED 0x02
#define F_NBMANDLIST    0x04    /* Only NBMAND locks users */
#define F_DEVINFO   0x08    /* get device usage info for a dip instead */
                /* of a minor node */
#define F_KINFO_COUNT   0x10    /* get the current number of kernel */
                /* device consumers */

/*
 * structures yielded by UTS_FUSERS
 */
typedef struct f_user {
    int fu_flags;   /* see below */
    union {
        struct {
            pid_t   u_pid;
            uid_t   u_uid;
        } u_info;
        struct {
            int k_modid;
            int k_instance;
            int k_minor;
        } k_info;
    } fu_info;
} f_user_t;

typedef struct fu_data {
    int     fud_user_max;
    int     fud_user_count;
    struct f_user   fud_user[1];
} fu_data_t;

/*
 * defines to simplify access to members of the f_user_t structure
 */
#define fu_pid      fu_info.u_info.u_pid
#define fu_uid      fu_info.u_info.u_uid

#define fu_modid    fu_info.k_info.k_modid
#define fu_instance fu_info.k_info.k_instance
#define fu_minor    fu_info.k_info.k_minor

#define fu_data_size(x) (sizeof (fu_data_t) - sizeof (f_user_t) + \
                ((x) * sizeof (f_user_t)))

/*
 * fu_flags values
 */
#define F_CDIR      0x1
#define F_RDIR      0x2
#define F_TEXT      0x4
#define F_MAP       0x8
#define F_OPEN      0x10
#define F_TRACE     0x20
#define F_TTY       0x40
#define F_NBM       0x80    /* NBMAND lock in place */
#define F_KERNEL    0x80000000

#ifdef  __cplusplus
}
#endif

#endif /* _SYS_UTSSYS_H */