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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667/* SPDX-License-Identifier: GPL-2.0 */#ifndef _LINUX_FCNTL_H#define _LINUX_FCNTL_H
#include <linux/stat.h>#include <uapi/linux/fcntl.h>#include <uapi/linux/openat2.h>
/* List of all valid flags for the open/openat flags argument: */#define VALID_OPEN_FLAGS \ (O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \ O_APPEND | O_NDELAY | O_NONBLOCK | __O_SYNC | O_DSYNC | \ FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \ O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE | O_EMPTYPATH)
/* List of all valid flags for openat2(2)'s how->flags argument. */#define VALID_OPENAT2_FLAGS (VALID_OPEN_FLAGS | OPENAT2_REGULAR)
/* * Kernel-internal carrier for OPENAT2_REGULAR. The UAPI bit lives in the * upper 32 bits of open_how::flags so open()/openat() cannot encode it. * build_open_flags() translates it to this internal flag, which then * propagates through op->open_flag and f->f_flags exactly like __FMODE_EXEC. * do_dentry_open() strips it so userspace cannot observe it via * fcntl(F_GETFL). * * Bit 30 is not claimed by any O_* flag on any architecture and stays clear * of the sign bit of the int op->open_flag. fcntl_init() enforces that it * never aliases an open-flag bit. */#define __O_REGULAR (1 << 30)
/* List of all valid flags for the how->resolve argument: */#define VALID_RESOLVE_FLAGS \ (RESOLVE_NO_XDEV | RESOLVE_NO_MAGICLINKS | RESOLVE_NO_SYMLINKS | \ RESOLVE_BENEATH | RESOLVE_IN_ROOT | RESOLVE_CACHED)
/* List of all open_how "versions". */#define OPEN_HOW_SIZE_VER0 24 /* sizeof first published struct */#define OPEN_HOW_SIZE_LATEST OPEN_HOW_SIZE_VER0
#ifndef force_o_largefile#define force_o_largefile() (!IS_ENABLED(CONFIG_ARCH_32BIT_OFF_T))#endif
#if BITS_PER_LONG == 32#define IS_GETLK32(cmd) ((cmd) == F_GETLK)#define IS_SETLK32(cmd) ((cmd) == F_SETLK)#define IS_SETLKW32(cmd) ((cmd) == F_SETLKW)#define IS_GETLK64(cmd) ((cmd) == F_GETLK64)#define IS_SETLK64(cmd) ((cmd) == F_SETLK64)#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW64)#else#define IS_GETLK32(cmd) (0)#define IS_SETLK32(cmd) (0)#define IS_SETLKW32(cmd) (0)#define IS_GETLK64(cmd) ((cmd) == F_GETLK)#define IS_SETLK64(cmd) ((cmd) == F_SETLK)#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW)#endif /* BITS_PER_LONG == 32 */
#define IS_GETLK(cmd) (IS_GETLK32(cmd) || IS_GETLK64(cmd))#define IS_SETLK(cmd) (IS_SETLK32(cmd) || IS_SETLK64(cmd))#define IS_SETLKW(cmd) (IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
#endif