1 /* $OpenBSD: vndioctl.h,v 1.12 2023/05/14 18:34:02 krw Exp $ */ 2 /* $NetBSD: vndioctl.h,v 1.5 1995/01/25 04:46:30 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1988 University of Utah. 6 * Copyright (c) 1990, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Systems Programming Group of the University of Utah Computer 11 * Science Department. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$ 38 * 39 * @(#)vnioctl.h 8.1 (Berkeley) 6/10/93 40 */ 41 42 #ifndef _SYS_VNDIOCTL_H_ 43 #define _SYS_VNDIOCTL_H_ 44 45 #define VNDNLEN 1024 /* PATH_MAX */ 46 47 /* 48 * Ioctl definitions for file (vnode) disk pseudo-device. 49 */ 50 struct 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 */ 64 struct 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