FreeBSD/Linux Kernel Cross Reference
sys/dev/vndioctl.h

     /*      $OpenBSD: vndioctl.h,v 1.11 2019/11/18 22:32:45 jca Exp $       */
     /*      $NetBSD: vndioctl.h,v 1.5 1995/01/25 04:46:30 cgd Exp $ */
     
     /*
      * Copyright (c) 1988 University of Utah.
      * Copyright (c) 1990, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * This code is derived from software contributed to Berkeley by
     * the Systems Programming Group of the University of Utah Computer
     * Science Department.
     *
     * 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.
     *
     * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$
     *
     *      @(#)vnioctl.h   8.1 (Berkeley) 6/10/93
     */
    
    #ifndef _SYS_VNDIOCTL_H_
    #define _SYS_VNDIOCTL_H_
    
    #define VNDNLEN 1024            /* PATH_MAX */
    
    /*
     * Ioctl definitions for file (vnode) disk pseudo-device.
     */
    struct vnd_ioctl {
            char    *vnd_file;      /* pathname of file to mount */
            size_t  vnd_secsize;    /* sector size in bytes */
            size_t  vnd_nsectors;   /* number of sectors in a track */
            size_t  vnd_ntracks;    /* number of tracks per cylinder (i.e. heads) */
            off_t   vnd_size;       /* (returned) size of disk */
            u_char  *vnd_key;
            int     vnd_keylen;
    };
    
    /*
     * A simple structure used by userland to query about a specific vnd.
     */
    struct vnd_user {
            char    vnu_file[VNDNLEN];      /* vnd file */
            int     vnu_unit;               /* vnd unit */
            dev_t   vnu_dev;                /* vnd device */
            ino_t   vnu_ino;                /* vnd inode */
    };
    
    /*
     * Before you can use a unit, it must be configured with VNDIOCSET.
     * The configuration persists across opens and closes of the device;
     * an VNDIOCCLR must be used to reset a configuration.  An attempt to
     * VNDIOCSET an already active unit will return EBUSY.
     */
    #define VNDIOCSET       _IOWR('F', 0, struct vnd_ioctl) /* enable disk */
    #define VNDIOCCLR       _IOW('F', 1, struct vnd_ioctl)  /* disable disk */
    #define VNDIOCGET       _IOWR('F', 3, struct vnd_user)  /* get disk info */
    
    #endif /* !_SYS_VNDIOCTL_H_ */

Cache object: e91d1130d2e5f26f9fce74c2ce2bbdab