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 RWH_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 * 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 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 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 */ 100 101 #define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */ 102 103 104 #endif /* _UAPI_LINUX_FCNTL_H */ 105