xref: /dragonfly/sys/vfs/tmpfs/tmpfs_mount.h (revision 25a86e44)
1 /*	$NetBSD: tmpfs_args.h,v 1.3 2008/07/29 09:10:09 pooka Exp $	*/
2 /*	$DragonFly: tmpfs_mount.h,v 1.3 2017/10/29 09:10:09 markuspf Exp $	*/
3 
4 /*
5  * Copyright (c) 2005, 2006, 2007 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Julio M. Merino Vidal, developed as part of Google's Summer of Code
10  * 2005 program.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef VFS_TMPFS_TMPFS_MOUNT_H_
35 #define VFS_TMPFS_TMPFS_MOUNT_H_
36 
37 /*
38  * This structure is used to communicate mount parameters between userland
39  * and kernel space.
40  */
41 #define TMPFS_ARGS_VERSION	2
42 struct tmpfs_mount_info {
43 	int			ta_version;
44 
45 	/* Size counters. */
46 	ino_t			ta_nodes_max;
47 	off_t			ta_size_max;
48 	size_t			ta_maxfsize_max;
49 
50 	/* Root node attributes. */
51 	uid_t			ta_root_uid;
52 	gid_t			ta_root_gid;
53 	mode_t			ta_root_mode;
54 };
55 
56 #define MNT_GID		0x00000001
57 #define MNT_UID		0x00000002
58 #define MNT_MODE	0x00000004
59 #define MNT_INODES	0x00000008
60 #define MNT_SIZE	0x00000010
61 #define MNT_MAXFSIZE	0x00000020
62 
63 #endif /* VFS_TMPFS_TMPFS_MOUNT_H_ */
64