/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _UAPI_LINUX_FCNTL_H #define _UAPI_LINUX_FCNTL_H #include <asm/fcntl.h> #include <linux/openat2.h> #define F_SETLEASE … #define F_GETLEASE … /* * Request nofications on a directory. * See below for events that may be notified. */ #define F_NOTIFY … #define F_DUPFD_QUERY … /* Was the file just created? */ #define F_CREATED_QUERY … /* * Cancel a blocking posix lock; internal use only until we expose an * asynchronous lock api to userspace: */ #define F_CANCELLK … /* Create a file descriptor with FD_CLOEXEC set. */ #define F_DUPFD_CLOEXEC … /* * Set and get of pipe page size array */ #define F_SETPIPE_SZ … #define F_GETPIPE_SZ … /* * Set/Get seals */ #define F_ADD_SEALS … #define F_GET_SEALS … /* * Types of seals */ #define F_SEAL_SEAL … #define F_SEAL_SHRINK … #define F_SEAL_GROW … #define F_SEAL_WRITE … #define F_SEAL_FUTURE_WRITE … #define F_SEAL_EXEC … /* (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 … #define F_SET_RW_HINT … #define F_GET_FILE_RW_HINT … #define F_SET_FILE_RW_HINT … /* * 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 … #define RWH_WRITE_LIFE_NONE … #define RWH_WRITE_LIFE_SHORT … #define RWH_WRITE_LIFE_MEDIUM … #define RWH_WRITE_LIFE_LONG … #define RWH_WRITE_LIFE_EXTREME … /* * 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 … /* * Types of directory notifications that may be requested. */ #define DN_ACCESS … #define DN_MODIFY … #define DN_CREATE … #define DN_DELETE … #define DN_RENAME … #define DN_ATTRIB … #define DN_MULTISHOT … #define AT_FDCWD … /* Generic flags for the *at(2) family of syscalls. */ /* Reserved for per-syscall flags 0xff. */ #define AT_SYMLINK_NOFOLLOW … /* Reserved for per-syscall flags 0x200 */ #define AT_SYMLINK_FOLLOW … #define AT_NO_AUTOMOUNT … #define AT_EMPTY_PATH … /* * These flags are currently statx(2)-specific, but they could be made generic * in the future and so they should not be used for other per-syscall flags. */ #define AT_STATX_SYNC_TYPE … #define AT_STATX_SYNC_AS_STAT … #define AT_STATX_FORCE_SYNC … #define AT_STATX_DONT_SYNC … #define AT_RECURSIVE … /* * Per-syscall flags for the *at(2) family of syscalls. * * These are flags that are so syscall-specific that a user passing these flags * to the wrong syscall is so "clearly wrong" that we can safely call such * usage "undefined behaviour". * * For example, the constants AT_REMOVEDIR and AT_EACCESS have the same value. * AT_EACCESS is meaningful only to faccessat, while AT_REMOVEDIR is meaningful * only to unlinkat. The two functions do completely different things and * therefore, the flags can be allowed to overlap. For example, passing * AT_REMOVEDIR to faccessat would be undefined behavior and thus treating it * equivalent to AT_EACCESS is valid undefined behavior. * * Note for implementers: When picking a new per-syscall AT_* flag, try to * reuse already existing flags first. This leaves us with as many unused bits * as possible, so we can use them for generic bits in the future if necessary. */ /* Flags for renameat2(2) (must match legacy RENAME_* flags). */ #define AT_RENAME_NOREPLACE … #define AT_RENAME_EXCHANGE … #define AT_RENAME_WHITEOUT … /* Flag for faccessat(2). */ #define AT_EACCESS … /* Flag for unlinkat(2). */ #define AT_REMOVEDIR … /* Flags for name_to_handle_at(2). */ #define AT_HANDLE_FID … #define AT_HANDLE_MNT_ID_UNIQUE … #if defined(__KERNEL__) #define AT_GETATTR_NOSEC … #endif #endif /* _UAPI_LINUX_FCNTL_H */
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