1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _LINUX_FCNTL_H
 3#define _LINUX_FCNTL_H
 4
 5#include <linux/stat.h>
 6#include <uapi/linux/fcntl.h>
 7
 8/* List of all valid flags for the open/openat flags argument: */
 9#define VALID_OPEN_FLAGS \
10	(O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \
11	 O_APPEND | O_NDELAY | O_NONBLOCK | O_NDELAY | __O_SYNC | O_DSYNC | \
12	 FASYNC	| O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \
13	 O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE)
14
15/* List of all valid flags for the how->upgrade_mask argument: */
16#define VALID_UPGRADE_FLAGS \
17	(UPGRADE_NOWRITE | UPGRADE_NOREAD)
18
19/* List of all valid flags for the how->resolve argument: */
20#define VALID_RESOLVE_FLAGS \
21	(RESOLVE_NO_XDEV | RESOLVE_NO_MAGICLINKS | RESOLVE_NO_SYMLINKS | \
22	 RESOLVE_BENEATH | RESOLVE_IN_ROOT)
23
24/* List of all open_how "versions". */
25#define OPEN_HOW_SIZE_VER0	24 /* sizeof first published struct */
26#define OPEN_HOW_SIZE_LATEST	OPEN_HOW_SIZE_VER0
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
27
28#ifndef force_o_largefile
29#define force_o_largefile() (!IS_ENABLED(CONFIG_ARCH_32BIT_OFF_T))
30#endif
31
32#if BITS_PER_LONG == 32
33#define IS_GETLK32(cmd)		((cmd) == F_GETLK)
34#define IS_SETLK32(cmd)		((cmd) == F_SETLK)
35#define IS_SETLKW32(cmd)	((cmd) == F_SETLKW)
36#define IS_GETLK64(cmd)		((cmd) == F_GETLK64)
37#define IS_SETLK64(cmd)		((cmd) == F_SETLK64)
38#define IS_SETLKW64(cmd)	((cmd) == F_SETLKW64)
39#else
40#define IS_GETLK32(cmd)		(0)
41#define IS_SETLK32(cmd)		(0)
42#define IS_SETLKW32(cmd)	(0)
43#define IS_GETLK64(cmd)		((cmd) == F_GETLK)
44#define IS_SETLK64(cmd)		((cmd) == F_SETLK)
45#define IS_SETLKW64(cmd)	((cmd) == F_SETLKW)
46#endif /* BITS_PER_LONG == 32 */
47
48#define IS_GETLK(cmd)	(IS_GETLK32(cmd)  || IS_GETLK64(cmd))
49#define IS_SETLK(cmd)	(IS_SETLK32(cmd)  || IS_SETLK64(cmd))
50#define IS_SETLKW(cmd)	(IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
 
 
51
52#endif

 
 1#ifndef _LINUX_FCNTL_H
 2#define _LINUX_FCNTL_H
 3
 4#include <asm/fcntl.h>
 
 5
 6#define F_SETLEASE	(F_LINUX_SPECIFIC_BASE + 0)
 7#define F_GETLEASE	(F_LINUX_SPECIFIC_BASE + 1)
 8
 9/*
10 * Cancel a blocking posix lock; internal use only until we expose an
11 * asynchronous lock api to userspace:
12 */
13#define F_CANCELLK	(F_LINUX_SPECIFIC_BASE + 5)
14
15/* Create a file descriptor with FD_CLOEXEC set. */
16#define F_DUPFD_CLOEXEC	(F_LINUX_SPECIFIC_BASE + 6)
17
18/*
19 * Request nofications on a directory.
20 * See below for events that may be notified.
21 */
22#define F_NOTIFY	(F_LINUX_SPECIFIC_BASE+2)
23
24/*
25 * Set and get of pipe page size array
26 */
27#define F_SETPIPE_SZ	(F_LINUX_SPECIFIC_BASE + 7)
28#define F_GETPIPE_SZ	(F_LINUX_SPECIFIC_BASE + 8)
29
30/*
31 * Types of directory notifications that may be requested.
32 */
33#define DN_ACCESS	0x00000001	/* File accessed */
34#define DN_MODIFY	0x00000002	/* File modified */
35#define DN_CREATE	0x00000004	/* File created */
36#define DN_DELETE	0x00000008	/* File removed */
37#define DN_RENAME	0x00000010	/* File renamed */
38#define DN_ATTRIB	0x00000020	/* File changed attibutes */
39#define DN_MULTISHOT	0x80000000	/* Don't remove notifier */
40
41#define AT_FDCWD		-100    /* Special value used to indicate
42                                           openat should use the current
43                                           working directory. */
44#define AT_SYMLINK_NOFOLLOW	0x100   /* Do not follow symbolic links.  */
45#define AT_REMOVEDIR		0x200   /* Remove directory instead of
46                                           unlinking file.  */
47#define AT_SYMLINK_FOLLOW	0x400   /* Follow symbolic links.  */
48#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
49#define AT_EMPTY_PATH		0x1000	/* Allow empty relative pathname */
50
51#ifdef __KERNEL__
52
53#ifndef force_o_largefile
54#define force_o_largefile() (BITS_PER_LONG != 32)
55#endif
56
57#if BITS_PER_LONG == 32
58#define IS_GETLK32(cmd)		((cmd) == F_GETLK)
59#define IS_SETLK32(cmd)		((cmd) == F_SETLK)
60#define IS_SETLKW32(cmd)	((cmd) == F_SETLKW)
61#define IS_GETLK64(cmd)		((cmd) == F_GETLK64)
62#define IS_SETLK64(cmd)		((cmd) == F_SETLK64)
63#define IS_SETLKW64(cmd)	((cmd) == F_SETLKW64)
64#else
65#define IS_GETLK32(cmd)		(0)
66#define IS_SETLK32(cmd)		(0)
67#define IS_SETLKW32(cmd)	(0)
68#define IS_GETLK64(cmd)		((cmd) == F_GETLK)
69#define IS_SETLK64(cmd)		((cmd) == F_SETLK)
70#define IS_SETLKW64(cmd)	((cmd) == F_SETLKW)
71#endif /* BITS_PER_LONG == 32 */
72
73#define IS_GETLK(cmd)	(IS_GETLK32(cmd)  || IS_GETLK64(cmd))
74#define IS_SETLK(cmd)	(IS_SETLK32(cmd)  || IS_SETLK64(cmd))
75#define IS_SETLKW(cmd)	(IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
76
77#endif /* __KERNEL__ */
78
79#endif