xref: /freebsd/sys/sys/filio.h (revision 29363fb446372cb3f10bc98664e9767c53fbb457)
1df8bae1dSRodney W. Grimes /*-
251369649SPedro F. Giffuni  * SPDX-License-Identifier: BSD-3-Clause
351369649SPedro F. Giffuni  *
4df8bae1dSRodney W. Grimes  * Copyright (c) 1982, 1986, 1990, 1993, 1994
5df8bae1dSRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
6df8bae1dSRodney W. Grimes  * (c) UNIX System Laboratories, Inc.
7df8bae1dSRodney W. Grimes  * All or some portions of this file are derived from material licensed
8df8bae1dSRodney W. Grimes  * to the University of California by American Telephone and Telegraph
9df8bae1dSRodney W. Grimes  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10df8bae1dSRodney W. Grimes  * the permission of UNIX System Laboratories, Inc.
11df8bae1dSRodney W. Grimes  *
12df8bae1dSRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
13df8bae1dSRodney W. Grimes  * modification, are permitted provided that the following conditions
14df8bae1dSRodney W. Grimes  * are met:
15df8bae1dSRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
16df8bae1dSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
17df8bae1dSRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
18df8bae1dSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
19df8bae1dSRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
20fbbd9655SWarner Losh  * 3. Neither the name of the University nor the names of its contributors
21df8bae1dSRodney W. Grimes  *    may be used to endorse or promote products derived from this software
22df8bae1dSRodney W. Grimes  *    without specific prior written permission.
23df8bae1dSRodney W. Grimes  *
24df8bae1dSRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25df8bae1dSRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26df8bae1dSRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27df8bae1dSRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28df8bae1dSRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29df8bae1dSRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30df8bae1dSRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31df8bae1dSRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32df8bae1dSRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33df8bae1dSRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34df8bae1dSRodney W. Grimes  * SUCH DAMAGE.
35df8bae1dSRodney W. Grimes  */
36df8bae1dSRodney W. Grimes 
37df8bae1dSRodney W. Grimes #ifndef	_SYS_FILIO_H_
38df8bae1dSRodney W. Grimes #define	_SYS_FILIO_H_
39df8bae1dSRodney W. Grimes 
401bb95729SAlan Somers #include <sys/_types.h>
41df8bae1dSRodney W. Grimes #include <sys/ioccom.h>
42df8bae1dSRodney W. Grimes 
43df8bae1dSRodney W. Grimes /* Generic file-descriptor ioctl's. */
44df8bae1dSRodney W. Grimes #define	FIOCLEX		 _IO('f', 1)		/* set close on exec on fd */
45df8bae1dSRodney W. Grimes #define	FIONCLEX	 _IO('f', 2)		/* remove close on exec */
46df8bae1dSRodney W. Grimes #define	FIONREAD	_IOR('f', 127, int)	/* get # bytes to read */
47df8bae1dSRodney W. Grimes #define	FIONBIO		_IOW('f', 126, int)	/* set/clear non-blocking i/o */
48df8bae1dSRodney W. Grimes #define	FIOASYNC	_IOW('f', 125, int)	/* set/clear async i/o */
49df8bae1dSRodney W. Grimes #define	FIOSETOWN	_IOW('f', 124, int)	/* set owner */
50df8bae1dSRodney W. Grimes #define	FIOGETOWN	_IOR('f', 123, int)	/* get owner */
51b5fca1cbSBrian Feldman #define	FIODTYPE	_IOR('f', 122, int)	/* get d_flags type part */
52cb2a8dffSSøren Schmidt #define	FIOGETLBA	_IOR('f', 121, int)	/* get start blk # */
53d65030e5SPoul-Henning Kamp struct fiodgname_arg {
54d65030e5SPoul-Henning Kamp 	int	len;
55d65030e5SPoul-Henning Kamp 	void	*buf;
56d65030e5SPoul-Henning Kamp };
57d65030e5SPoul-Henning Kamp #define	FIODGNAME	_IOW('f', 120, struct fiodgname_arg) /* get dev. name */
58bb520069SPoul-Henning Kamp #define	FIONWRITE	_IOR('f', 119, int)	/* get # bytes (yet) to write */
592dafac39SEd Maste #define	FIONSPACE	_IOR('f', 118, int)	/* get space in send queue */
60f6521d1cSPawel Jakub Dawidek /* Handle lseek SEEK_DATA and SEEK_HOLE for holey file knowledge. */
61f6521d1cSPawel Jakub Dawidek #define	FIOSEEKDATA	_IOWR('f', 97, off_t)	/* SEEK_DATA */
62f6521d1cSPawel Jakub Dawidek #define	FIOSEEKHOLE	_IOWR('f', 98, off_t)	/* SEEK_HOLE */
63d49b446bSAlan Somers struct fiobmap2_arg {
641bb95729SAlan Somers 	__daddr_t	bn;
65d49b446bSAlan Somers 	int		runp;
66d49b446bSAlan Somers 	int		runb;
67d49b446bSAlan Somers };
681bb95729SAlan Somers /* Get the file's bmap info for the logical block bn. */
69d49b446bSAlan Somers #define	FIOBMAP2	_IOWR('f', 99, struct fiobmap2_arg)
70*d301b358SKonstantin Belousov /* POSIX shm largepage set/get config */
71*d301b358SKonstantin Belousov #define	FIOSSHMLPGCNF	_IOW('f', 100, struct shm_largepage_conf)
72*d301b358SKonstantin Belousov #define	FIOGSHMLPGCNF	_IOR('f', 101, struct shm_largepage_conf)
73df8bae1dSRodney W. Grimes 
74ed34a7fcSBrooks Davis #ifdef _KERNEL
75ed34a7fcSBrooks Davis #ifdef COMPAT_FREEBSD32
76ed34a7fcSBrooks Davis struct fiodgname_arg32 {
77ed34a7fcSBrooks Davis 	int		len;
78ed34a7fcSBrooks Davis 	uint32_t	buf;	/* (void *) */
79ed34a7fcSBrooks Davis };
80ed34a7fcSBrooks Davis #define	FIODGNAME_32	_IOC_NEWTYPE(FIODGNAME, struct fiodgname_arg32)
81ed34a7fcSBrooks Davis #endif
82ed34a7fcSBrooks Davis 
83ed34a7fcSBrooks Davis void	*fiodgname_buf_get_ptr(void *fgnp, u_long com);
84ed34a7fcSBrooks Davis #endif
85ed34a7fcSBrooks Davis 
86df8bae1dSRodney W. Grimes #endif /* !_SYS_FILIO_H_ */
87