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1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI_LINUX_FCNTL_H
3 #define _UAPI_LINUX_FCNTL_H
4 
5 #include <asm/fcntl.h>
6 
7 #define F_SETLEASE	(F_LINUX_SPECIFIC_BASE + 0)
8 #define F_GETLEASE	(F_LINUX_SPECIFIC_BASE + 1)
9 
10 /*
11  * Cancel a blocking posix lock; internal use only until we expose an
12  * asynchronous lock api to userspace:
13  */
14 #define F_CANCELLK	(F_LINUX_SPECIFIC_BASE + 5)
15 
16 /* Create a file descriptor with FD_CLOEXEC set. */
17 #define F_DUPFD_CLOEXEC	(F_LINUX_SPECIFIC_BASE + 6)
18 
19 /*
20  * Request nofications on a directory.
21  * See below for events that may be notified.
22  */
23 #define F_NOTIFY	(F_LINUX_SPECIFIC_BASE+2)
24 
25 /*
26  * Set and get of pipe page size array
27  */
28 #define F_SETPIPE_SZ	(F_LINUX_SPECIFIC_BASE + 7)
29 #define F_GETPIPE_SZ	(F_LINUX_SPECIFIC_BASE + 8)
30 
31 /*
32  * Set/Get seals
33  */
34 #define F_ADD_SEALS	(F_LINUX_SPECIFIC_BASE + 9)
35 #define F_GET_SEALS	(F_LINUX_SPECIFIC_BASE + 10)
36 
37 /*
38  * Types of seals
39  */
40 #define F_SEAL_SEAL	0x0001	/* prevent further seals from being set */
41 #define F_SEAL_SHRINK	0x0002	/* prevent file from shrinking */
42 #define F_SEAL_GROW	0x0004	/* prevent file from growing */
43 #define F_SEAL_WRITE	0x0008	/* prevent writes */
44 /* (1U << 31) is reserved for signed error codes */
45 
46 /*
47  * Set/Get write life time hints. {GET,SET}_RW_HINT operate on the
48  * underlying inode, while {GET,SET}_FILE_RW_HINT operate only on
49  * the specific file.
50  */
51 #define F_GET_RW_HINT		(F_LINUX_SPECIFIC_BASE + 11)
52 #define F_SET_RW_HINT		(F_LINUX_SPECIFIC_BASE + 12)
53 #define F_GET_FILE_RW_HINT	(F_LINUX_SPECIFIC_BASE + 13)
54 #define F_SET_FILE_RW_HINT	(F_LINUX_SPECIFIC_BASE + 14)
55 
56 /*
57  * Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be
58  * used to clear any hints previously set.
59  */
60 #define RWF_WRITE_LIFE_NOT_SET	0
61 #define RWH_WRITE_LIFE_NONE	1
62 #define RWH_WRITE_LIFE_SHORT	2
63 #define RWH_WRITE_LIFE_MEDIUM	3
64 #define RWH_WRITE_LIFE_LONG	4
65 #define RWH_WRITE_LIFE_EXTREME	5
66 
67 /*
68  * Types of directory notifications that may be requested.
69  */
70 #define DN_ACCESS	0x00000001	/* File accessed */
71 #define DN_MODIFY	0x00000002	/* File modified */
72 #define DN_CREATE	0x00000004	/* File created */
73 #define DN_DELETE	0x00000008	/* File removed */
74 #define DN_RENAME	0x00000010	/* File renamed */
75 #define DN_ATTRIB	0x00000020	/* File changed attibutes */
76 #define DN_MULTISHOT	0x80000000	/* Don't remove notifier */
77 
78 #define AT_FDCWD		-100    /* Special value used to indicate
79                                            openat should use the current
80                                            working directory. */
81 #define AT_SYMLINK_NOFOLLOW	0x100   /* Do not follow symbolic links.  */
82 #define AT_REMOVEDIR		0x200   /* Remove directory instead of
83                                            unlinking file.  */
84 #define AT_SYMLINK_FOLLOW	0x400   /* Follow symbolic links.  */
85 #define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
86 #define AT_EMPTY_PATH		0x1000	/* Allow empty relative pathname */
87 
88 #define AT_STATX_SYNC_TYPE	0x6000	/* Type of synchronisation required from statx() */
89 #define AT_STATX_SYNC_AS_STAT	0x0000	/* - Do whatever stat() does */
90 #define AT_STATX_FORCE_SYNC	0x2000	/* - Force the attributes to be sync'd with the server */
91 #define AT_STATX_DONT_SYNC	0x4000	/* - Don't sync attributes with the server */
92 
93 
94 #endif /* _UAPI_LINUX_FCNTL_H */
95