[linux-block.git] / include / uapi / linux / fcntl.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_FCNTL_H
#define _UAPI_LINUX_FCNTL_H

#include <asm/fcntl.h>

#define F_SETLEASE	(F_LINUX_SPECIFIC_BASE + 0)
#define F_GETLEASE	(F_LINUX_SPECIFIC_BASE + 1)

/*
 * Cancel a blocking posix lock; internal use only until we expose an
 * asynchronous lock api to userspace:
 */
#define F_CANCELLK	(F_LINUX_SPECIFIC_BASE + 5)

/* Create a file descriptor with FD_CLOEXEC set. */
#define F_DUPFD_CLOEXEC	(F_LINUX_SPECIFIC_BASE + 6)

/*
 * Request nofications on a directory.
 * See below for events that may be notified.
 */
#define F_NOTIFY	(F_LINUX_SPECIFIC_BASE+2)

/*
 * Set and get of pipe page size array
 */
#define F_SETPIPE_SZ	(F_LINUX_SPECIFIC_BASE + 7)
#define F_GETPIPE_SZ	(F_LINUX_SPECIFIC_BASE + 8)

/*
 * Set/Get seals
 */
#define F_ADD_SEALS	(F_LINUX_SPECIFIC_BASE + 9)
#define F_GET_SEALS	(F_LINUX_SPECIFIC_BASE + 10)

/*
 * Types of seals
 */
#define F_SEAL_SEAL	0x0001	/* prevent further seals from being set */
#define F_SEAL_SHRINK	0x0002	/* prevent file from shrinking */
#define F_SEAL_GROW	0x0004	/* prevent file from growing */
#define F_SEAL_WRITE	0x0008	/* prevent writes */
#define F_SEAL_FUTURE_WRITE	0x0010  /* prevent future writes while mapped */
/* (1U << 31) is reserved for signed error codes */

/*
 * Set/Get write life time hints. {GET,SET}_RW_HINT operate on the
 * underlying inode, while {GET,SET}_FILE_RW_HINT operate only on
 * the specific file.
 */
#define F_GET_RW_HINT		(F_LINUX_SPECIFIC_BASE + 11)
#define F_SET_RW_HINT		(F_LINUX_SPECIFIC_BASE + 12)
#define F_GET_FILE_RW_HINT	(F_LINUX_SPECIFIC_BASE + 13)
#define F_SET_FILE_RW_HINT	(F_LINUX_SPECIFIC_BASE + 14)

/*
 * Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be
 * used to clear any hints previously set.
 */
#define RWH_WRITE_LIFE_NOT_SET	0
#define RWH_WRITE_LIFE_NONE	1
#define RWH_WRITE_LIFE_SHORT	2
#define RWH_WRITE_LIFE_MEDIUM	3
#define RWH_WRITE_LIFE_LONG	4
#define RWH_WRITE_LIFE_EXTREME	5

/*
 * The originally introduced spelling is remained from the first
 * versions of the patch set that introduced the feature, see commit
 * v4.13-rc1~212^2~51.
 */
#define RWF_WRITE_LIFE_NOT_SET	RWH_WRITE_LIFE_NOT_SET

/*
 * Types of directory notifications that may be requested.
 */
#define DN_ACCESS	0x00000001	/* File accessed */
#define DN_MODIFY	0x00000002	/* File modified */
#define DN_CREATE	0x00000004	/* File created */
#define DN_DELETE	0x00000008	/* File removed */
#define DN_RENAME	0x00000010	/* File renamed */
#define DN_ATTRIB	0x00000020	/* File changed attibutes */
#define DN_MULTISHOT	0x80000000	/* Don't remove notifier */

#define AT_FDCWD		-100    /* Special value used to indicate
                                           openat should use the current
                                           working directory. */
#define AT_SYMLINK_NOFOLLOW	0x100   /* Do not follow symbolic links.  */
#define AT_REMOVEDIR		0x200   /* Remove directory instead of
                                           unlinking file.  */
#define AT_SYMLINK_FOLLOW	0x400   /* Follow symbolic links.  */
#define AT_NO_AUTOMOUNT		0x800	/* Suppress terminal automount traversal */
#define AT_EMPTY_PATH		0x1000	/* Allow empty relative pathname */

#define AT_STATX_SYNC_TYPE	0x6000	/* Type of synchronisation required from statx() */
#define AT_STATX_SYNC_AS_STAT	0x0000	/* - Do whatever stat() does */
#define AT_STATX_FORCE_SYNC	0x2000	/* - Force the attributes to be sync'd with the server */
#define AT_STATX_DONT_SYNC	0x4000	/* - Don't sync attributes with the server */

#define AT_RECURSIVE		0x8000	/* Apply to the entire subtree */


#endif /* _UAPI_LINUX_FCNTL_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
607ca46e DH	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
40e041a2 DH	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 */
ab3948f5	44	#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
40e041a2 DH	45	/* (1U << 31) is reserved for signed error codes */
40e041a2 DH	46
c75b1d94 JA	47	/*
	48	* Set/Get write life time hints. {GET,SET}_RW_HINT operate on the
	49	* underlying inode, while {GET,SET}_FILE_RW_HINT operate only on
	50	* the specific file.
	51	*/
	52	#define F_GET_RW_HINT (F_LINUX_SPECIFIC_BASE + 11)
	53	#define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12)
	54	#define F_GET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 13)
	55	#define F_SET_FILE_RW_HINT (F_LINUX_SPECIFIC_BASE + 14)
	56
	57	/*
	58	* Valid hint values for F_{GET,SET}_RW_HINT. 0 is "not set", or can be
	59	* used to clear any hints previously set.
	60	*/
9a7f12ed	61	#define RWH_WRITE_LIFE_NOT_SET 0
c75b1d94 JA	62	#define RWH_WRITE_LIFE_NONE 1
	63	#define RWH_WRITE_LIFE_SHORT 2
	64	#define RWH_WRITE_LIFE_MEDIUM 3
	65	#define RWH_WRITE_LIFE_LONG 4
	66	#define RWH_WRITE_LIFE_EXTREME 5
	67
9a7f12ed ES	68	/*
	69	* The originally introduced spelling is remained from the first
	70	* versions of the patch set that introduced the feature, see commit
	71	* v4.13-rc1~212^2~51.
	72	*/
	73	#define RWF_WRITE_LIFE_NOT_SET RWH_WRITE_LIFE_NOT_SET
	74
607ca46e DH	75	/*
	76	* Types of directory notifications that may be requested.
	77	*/
	78	#define DN_ACCESS 0x00000001 /* File accessed */
	79	#define DN_MODIFY 0x00000002 /* File modified */
	80	#define DN_CREATE 0x00000004 /* File created */
	81	#define DN_DELETE 0x00000008 /* File removed */
	82	#define DN_RENAME 0x00000010 /* File renamed */
	83	#define DN_ATTRIB 0x00000020 /* File changed attibutes */
	84	#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */
	85
	86	#define AT_FDCWD -100 /* Special value used to indicate
	87	openat should use the current
	88	working directory. */
	89	#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */
	90	#define AT_REMOVEDIR 0x200 /* Remove directory instead of
	91	unlinking file. */
	92	#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */
	93	#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */
	94	#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
	95
a528d35e DH	96	#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */
	97	#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */
	98	#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */
	99	#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */
	100
a07b2000 AV	101	#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */
a07b2000 AV	102
607ca46e DH	103
607ca46e DH	104	#endif /* _UAPI_LINUX_FCNTL_H */