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#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */ 45/* (1U << 31) is reserved for signed error codes */ 46 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 */ 61#define RWF_WRITE_LIFE_NOT_SET 0 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 68/* 69 * Types of directory notifications that may be requested. 70 */ 71#define DN_ACCESS 0x00000001 /* File accessed */ 72#define DN_MODIFY 0x00000002 /* File modified */ 73#define DN_CREATE 0x00000004 /* File created */ 74#define DN_DELETE 0x00000008 /* File removed */ 75#define DN_RENAME 0x00000010 /* File renamed */ 76#define DN_ATTRIB 0x00000020 /* File changed attibutes */ 77#define DN_MULTISHOT 0x80000000 /* Don't remove notifier */ 78 79#define AT_FDCWD -100 /* Special value used to indicate 80 openat should use the current 81 working directory. */ 82#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */ 83#define AT_REMOVEDIR 0x200 /* Remove directory instead of 84 unlinking file. */ 85#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */ 86#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */ 87#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */ 88 89#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */ 90#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */ 91#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */ 92#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */ 93 94#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */ 95 96 97#endif /* _UAPI_LINUX_FCNTL_H */ 98