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/* $OpenBSD: vndioctl.h,v 1.10 2016/12/14 18:59:12 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 */
/* XXX kill after 6.1 */
/* #define VNDIOCGET60 _IOWR('F', 2, struct vnd_user60) */
#define VNDIOCGET _IOWR('F', 3, struct vnd_user) /* get disk info */
#endif /* !_SYS_VNDIOCTL_H_ */
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