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1.1 root 1: /*
2: * Copyright (c) 1988 University of Utah.
3: * Copyright (c) 1990 The Regents of the University of California.
4: * All rights reserved.
5: *
6: * This code is derived from software contributed to Berkeley by
7: * the Systems Programming Group of the University of Utah Computer
8: * Science Department.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: *
38: * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$
39: *
1.1.1.2 ! root 40: * from: @(#)vnioctl.h 7.3 (Berkeley) 5/7/91
! 41: * vnioctl.h,v 1.2 1993/05/22 07:57:00 cgd Exp
1.1 root 42: */
43:
44: /*
45: * Ioctl definitions for file (vnode) disk pseudo-device.
46: */
47:
48: #define FDISKFILE "/etc/fdisks" /* default config file */
49:
50: struct vn_ioctl {
51: char *vn_file; /* pathname of file to mount */
52: int vn_size; /* (returned) size of disk */
53: };
54:
55: /*
56: * Before you can use a unit, it must be configured with VNIOCSET.
57: * The configuration persists across opens and closes of the device;
58: * an VNIOCCLR must be used to reset a configuration. An attempt to
59: * VNIOCSET an already active unit will return EBUSY.
60: */
61: #define VNIOCSET _IOWR('F', 0, struct vn_ioctl) /* enable disk */
62: #define VNIOCCLR _IOW('F', 1, struct vn_ioctl) /* disable disk */
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