xref: /illumos-gate/usr/src/uts/common/sys/filio.h (revision b4203d75)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
25  */
26 
27 /*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 /*
41  * Copyright (c) 2013 by Delphix. All rights reserved.
42  */
43 
44 #ifndef _SYS_FILIO_H
45 #define	_SYS_FILIO_H
46 
47 /*
48  * General file ioctl definitions.
49  */
50 
51 #include <sys/ioccom.h>
52 
53 #ifdef	__cplusplus
54 extern "C" {
55 #endif
56 
57 #define	FIOCLEX		_IO('f', 1)		/* set exclusive use on fd */
58 #define	FIONCLEX	_IO('f', 2)		/* remove exclusive use */
59 /* another local */
60 #define	FIONREAD	_IOR('f', 127, int)	/* get # bytes to read */
61 #define	FIONBIO		_IOW('f', 126, int)	/* set/clear non-blocking i/o */
62 #define	FIOASYNC	_IOW('f', 125, int)	/* set/clear async i/o */
63 #define	FIOSETOWN	_IOW('f', 124, int)	/* set owner */
64 #define	FIOGETOWN	_IOR('f', 123, int)	/* get owner */
65 
66 /*
67  * ioctl's for Online: DiskSuite.
68  * WARNING - the support for these ioctls may be withdrawn
69  * in future OS releases.
70  */
71 #define	_FIOLFS		_IO('f', 64)		/* file system lock */
72 #define	_FIOLFSS	_IO('f', 65)		/* file system lock status */
73 #define	_FIOFFS		_IO('f', 66)		/* file system flush */
74 #define	_FIOAI		_FIOOBSOLETE67		/* get allocation info is */
75 #define	_FIOOBSOLETE67	_IO('f', 67)		/* obsolete and unsupported */
76 #define	_FIOSATIME	_IO('f', 68)		/* set atime */
77 #define	_FIOSDIO	_IO('f', 69)		/* set delayed io */
78 #define	_FIOGDIO	_IO('f', 70)		/* get delayed io */
79 #define	_FIOIO		_IO('f', 71)		/* inode open */
80 #define	_FIOISLOG	_IO('f', 72)		/* disksuite/ufs protocol */
81 #define	_FIOISLOGOK	_IO('f', 73)		/* disksuite/ufs protocol */
82 #define	_FIOLOGRESET	_IO('f', 74)		/* disksuite/ufs protocol */
83 
84 /*
85  * Contract-private ioctl()
86  */
87 #define	_FIOISBUSY	_IO('f', 75)		/* networker/ufs protocol */
88 #define	_FIODIRECTIO	_IO('f', 76)		/* directio */
89 #define	_FIOTUNE	_IO('f', 77)		/* tuning */
90 
91 /*
92  * Internal Logging UFS
93  */
94 #define	_FIOLOGENABLE	_IO('f', 87)		/* logging/ufs protocol */
95 #define	_FIOLOGDISABLE	_IO('f', 88)		/* logging/ufs protocol */
96 
97 /*
98  * File system snapshot ioctls (see sys/fs/ufs_snap.h)
99  * (there is another snapshot ioctl, _FIOSNAPSHOTCREATE_MULTI,
100  * defined farther down in this file.)
101  */
102 #define	_FIOSNAPSHOTCREATE	_IO('f', 89)	/* create a snapshot */
103 #define	_FIOSNAPSHOTDELETE	_IO('f', 90)	/* delete a snapshot */
104 
105 /*
106  * Return the current superblock of size SBSIZE
107  */
108 #define	_FIOGETSUPERBLOCK	_IO('f', 91)
109 
110 /*
111  * Contract private ioctl
112  */
113 #define	_FIOGETMAXPHYS		_IO('f', 92)
114 
115 /*
116  * TSufs support
117  */
118 #define	_FIO_SET_LUFS_DEBUG	_IO('f', 93) /* set lufs_debug */
119 #define	_FIO_SET_LUFS_ERROR	_IO('f', 94) /* set a lufs error */
120 #define	_FIO_GET_TOP_STATS	_IO('f', 95) /* get lufs tranaction stats */
121 
122 /*
123  * create a snapshot with multiple backing files
124  */
125 #define	_FIOSNAPSHOTCREATE_MULTI	_IO('f', 96)
126 
127 /*
128  * handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge
129  */
130 #define	_FIO_SEEK_DATA		_IO('f', 97) /* SEEK_DATA */
131 #define	_FIO_SEEK_HOLE		_IO('f', 98) /* SEEK_HOLE */
132 
133 /*
134  * boot archive compression
135  */
136 #define	_FIO_COMPRESSED		_IO('f', 99) /* mark file as compressed */
137 
138 /*
139  * Expose fill information through ioctl
140  */
141 #define	_FIO_COUNT_FILLED	_IO('f', 100)	/* count holes in a file */
142 
143 #ifdef	__cplusplus
144 }
145 #endif
146 
147 #endif	/* _SYS_FILIO_H */
148