1 /* 2 * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * Copyright (c) 1988 University of Utah. 30 * Copyright (c) 1990, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * This code is derived from software contributed to Berkeley by 34 * the Systems Programming Group of the University of Utah Computer 35 * Science Department. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by the University of 48 * California, Berkeley and its contributors. 49 * 4. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$ 66 * 67 * @(#)vnioctl.h 8.1 (Berkeley) 6/10/93 68 * 69 * $FreeBSD: src/sys/sys/vnioctl.h,v 1.4 1999/09/17 05:33:58 dillon Exp $ 70 */ 71 72 #ifndef _SYS_VNIOCTL_H_ 73 #define _SYS_VNIOCTL_H_ 74 75 #include <sys/appleapiopts.h> 76 #include <sys/cdefs.h> 77 78 79 /* 80 * Ioctl definitions for file (vnode) disk pseudo-device. 81 */ 82 83 #define _PATH_VNTAB "/etc/vntab" /* default config file */ 84 85 typedef enum { 86 vncontrol_readwrite_io_e = 0 87 } vncontrol_t; 88 89 struct vn_ioctl { 90 char * vn_file; /* pathname of file to mount */ 91 int vn_size; /* (returned) size of disk */ 92 vncontrol_t vn_control; 93 }; 94 95 #ifdef KERNEL_PRIVATE 96 97 struct vn_ioctl_64 { 98 u_int64_t vn_file; /* pathname of file to mount */ 99 int vn_size; /* (returned) size of disk */ 100 vncontrol_t vn_control; 101 }; 102 103 struct vn_ioctl_32 { 104 u_int32_t vn_file; /* pathname of file to mount */ 105 int vn_size; /* (returned) size of disk */ 106 vncontrol_t vn_control; 107 }; 108 109 #endif /* KERNEL_PRIVATE */ 110 111 /* 112 * Before you can use a unit, it must be configured with VNIOCSET. 113 * The configuration persists across opens and closes of the device; 114 * an VNIOCCLR must be used to reset a configuration. An attempt to 115 * VNIOCSET an already active unit will return EBUSY. 116 */ 117 #define VNIOCATTACH _IOWR('F', 0, struct vn_ioctl) /* attach file */ 118 #define VNIOCDETACH _IOWR('F', 1, struct vn_ioctl) /* detach disk */ 119 #define VNIOCGSET _IOWR('F', 2, u_int32_t ) /* set global option */ 120 #define VNIOCGCLEAR _IOWR('F', 3, u_int32_t ) /* reset --//-- */ 121 #define VNIOCUSET _IOWR('F', 4, u_int32_t ) /* set unit option */ 122 #define VNIOCUCLEAR _IOWR('F', 5, u_int32_t ) /* reset --//-- */ 123 #define VNIOCSHADOW _IOWR('F', 6, struct vn_ioctl) /* attach shadow */ 124 #ifdef KERNEL_PRIVATE 125 #define VNIOCATTACH64 _IOWR('F', 0, struct vn_ioctl_64) /* attach file - LP64 */ 126 #define VNIOCDETACH64 _IOWR('F', 1, struct vn_ioctl_64) /* detach disk - LP64 */ 127 #define VNIOCSHADOW64 _IOWR('F', 6, struct vn_ioctl_64) /* attach shadow - LP64 */ 128 #ifdef __LP64__ 129 #define VNIOCATTACH32 _IOWR('F', 0, struct vn_ioctl_32) /* attach file - U32 version for K64 */ 130 #define VNIOCDETACH32 _IOWR('F', 1, struct vn_ioctl_32) /* detach disk - U32 version for K64 */ 131 #define VNIOCSHADOW32 _IOWR('F', 6, struct vn_ioctl_32) /* attach shadow - U32 version for K64 */ 132 #endif 133 #endif /* KERNEL_PRIVATE */ 134 135 #define VN_LABELS 0x1 /* Use disk(/slice) labels */ 136 #define VN_FOLLOW 0x2 /* Debug flow in vn driver */ 137 #define VN_DEBUG 0x4 /* Debug data in vn driver */ 138 #define VN_IO 0x8 /* Debug I/O in vn driver */ 139 #define VN_DONTCLUSTER 0x10 /* Don't cluster */ 140 #define VN_RESERVE 0x20 /* Pre-reserve swap */ 141 142 143 #endif /* _SYS_VNIOCTL_H_*/ 144