1178476Sjb/* $OpenBSD: vndioctl.h,v 1.12 2023/05/14 18:34:02 krw Exp $ */ 2178476Sjb/* $NetBSD: vndioctl.h,v 1.5 1995/01/25 04:46:30 cgd Exp $ */ 3178476Sjb 4178476Sjb/* 5178476Sjb * Copyright (c) 1988 University of Utah. 6178476Sjb * Copyright (c) 1990, 1993 7178476Sjb * The Regents of the University of California. All rights reserved. 8178476Sjb * 9178476Sjb * This code is derived from software contributed to Berkeley by 10178476Sjb * the Systems Programming Group of the University of Utah Computer 11178476Sjb * Science Department. 12178476Sjb * 13178476Sjb * Redistribution and use in source and binary forms, with or without 14178476Sjb * modification, are permitted provided that the following conditions 15178476Sjb * are met: 16178476Sjb * 1. Redistributions of source code must retain the above copyright 17178476Sjb * notice, this list of conditions and the following disclaimer. 18178476Sjb * 2. Redistributions in binary form must reproduce the above copyright 19178476Sjb * notice, this list of conditions and the following disclaimer in the 20178476Sjb * documentation and/or other materials provided with the distribution. 21178476Sjb * 3. Neither the name of the University nor the names of its contributors 22178476Sjb * may be used to endorse or promote products derived from this software 23178476Sjb * without specific prior written permission. 24178476Sjb * 25178476Sjb * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26178476Sjb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27178476Sjb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28178476Sjb * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29178476Sjb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30178476Sjb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31178476Sjb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32178476Sjb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33178476Sjb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34178476Sjb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35178476Sjb * SUCH DAMAGE. 36178476Sjb * 37178476Sjb * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$ 38178476Sjb * 39178476Sjb * @(#)vnioctl.h 8.1 (Berkeley) 6/10/93 40178476Sjb */ 41178476Sjb 42178476Sjb#ifndef _SYS_VNDIOCTL_H_ 43178476Sjb#define _SYS_VNDIOCTL_H_ 44 45#define VNDNLEN 1024 /* PATH_MAX */ 46 47/* 48 * Ioctl definitions for file (vnode) disk pseudo-device. 49 */ 50struct vnd_ioctl { 51 char *vnd_file; /* pathname of file to mount */ 52 size_t vnd_secsize; /* sector size in bytes */ 53 size_t vnd_nsectors; /* number of sectors in a track */ 54 size_t vnd_ntracks; /* number of tracks per cylinder */ 55 off_t vnd_size; /* (returned) size of disk */ 56 u_char *vnd_key; 57 int vnd_keylen; 58 uint16_t vnd_type; /* DTYPE being emulated */ 59}; 60 61/* 62 * A simple structure used by userland to query about a specific vnd. 63 */ 64struct vnd_user { 65 char vnu_file[VNDNLEN]; /* vnd file */ 66 int vnu_unit; /* vnd unit */ 67 dev_t vnu_dev; /* vnd device */ 68 ino_t vnu_ino; /* vnd inode */ 69}; 70 71/* 72 * Before you can use a unit, it must be configured with VNDIOCSET. 73 * The configuration persists across opens and closes of the device; 74 * an VNDIOCCLR must be used to reset a configuration. An attempt to 75 * VNDIOCSET an already active unit will return EBUSY. 76 */ 77#define VNDIOCSET _IOWR('F', 0, struct vnd_ioctl) /* enable disk */ 78#define VNDIOCCLR _IOW('F', 1, struct vnd_ioctl) /* disable disk */ 79#define VNDIOCGET _IOWR('F', 3, struct vnd_user) /* get disk info */ 80 81#endif /* !_SYS_VNDIOCTL_H_ */ 82