| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _LINUX_FCNTL_H |
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| 3 | #define _LINUX_FCNTL_H |
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| 4 | |
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| 5 | #include <linux/stat.h> |
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| 6 | #include <uapi/linux/fcntl.h> |
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| 7 | |
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| 8 | /* List of all valid flags for the open/openat flags argument: */ |
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| 9 | #define VALID_OPEN_FLAGS \ |
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| 10 | (O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \ |
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| 11 | O_APPEND | O_NDELAY | O_NONBLOCK | __O_SYNC | O_DSYNC | \ |
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| 12 | FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \ |
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| 13 | O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE) |
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| 14 | |
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| 15 | /* List of all valid flags for the how->resolve argument: */ |
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| 16 | #define VALID_RESOLVE_FLAGS \ |
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| 17 | (RESOLVE_NO_XDEV | RESOLVE_NO_MAGICLINKS | RESOLVE_NO_SYMLINKS | \ |
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| 18 | RESOLVE_BENEATH | RESOLVE_IN_ROOT | RESOLVE_CACHED) |
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| 19 | |
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| 20 | /* List of all open_how "versions". */ |
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| 21 | #define OPEN_HOW_SIZE_VER0 24 /* sizeof first published struct */ |
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| 22 | #define OPEN_HOW_SIZE_LATEST OPEN_HOW_SIZE_VER0 |
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| 23 | |
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| 24 | #ifndef force_o_largefile |
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| 25 | #define force_o_largefile() (!IS_ENABLED(CONFIG_ARCH_32BIT_OFF_T)) |
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| 26 | #endif |
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| 27 | |
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| 28 | #if BITS_PER_LONG == 32 |
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| 29 | #define IS_GETLK32(cmd) ((cmd) == F_GETLK) |
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| 30 | #define IS_SETLK32(cmd) ((cmd) == F_SETLK) |
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| 31 | #define IS_SETLKW32(cmd) ((cmd) == F_SETLKW) |
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| 32 | #define IS_GETLK64(cmd) ((cmd) == F_GETLK64) |
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| 33 | #define IS_SETLK64(cmd) ((cmd) == F_SETLK64) |
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| 34 | #define IS_SETLKW64(cmd) ((cmd) == F_SETLKW64) |
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| 35 | #else |
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| 36 | #define IS_GETLK32(cmd) (0) |
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| 37 | #define IS_SETLK32(cmd) (0) |
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| 38 | #define IS_SETLKW32(cmd) (0) |
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| 39 | #define IS_GETLK64(cmd) ((cmd) == F_GETLK) |
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| 40 | #define IS_SETLK64(cmd) ((cmd) == F_SETLK) |
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| 41 | #define IS_SETLKW64(cmd) ((cmd) == F_SETLKW) |
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| 42 | #endif /* BITS_PER_LONG == 32 */ |
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| 43 | |
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| 44 | #define IS_GETLK(cmd) (IS_GETLK32(cmd) || IS_GETLK64(cmd)) |
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| 45 | #define IS_SETLK(cmd) (IS_SETLK32(cmd) || IS_SETLK64(cmd)) |
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| 46 | #define IS_SETLKW(cmd) (IS_SETLKW32(cmd) || IS_SETLKW64(cmd)) |
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| 47 | |
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| 48 | #endif |
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| 49 | |
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