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192 lines
6.6 KiB
192 lines
6.6 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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#ifndef _UAPI_LINUX_STAT_H |
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#define _UAPI_LINUX_STAT_H |
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#include <linux/types.h> |
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#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) |
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#define S_IFMT 00170000 |
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#define S_IFSOCK 0140000 |
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#define S_IFLNK 0120000 |
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#define S_IFREG 0100000 |
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#define S_IFBLK 0060000 |
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#define S_IFDIR 0040000 |
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#define S_IFCHR 0020000 |
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#define S_IFIFO 0010000 |
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#define S_ISUID 0004000 |
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#define S_ISGID 0002000 |
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#define S_ISVTX 0001000 |
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#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) |
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#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) |
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#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
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#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR) |
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#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) |
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#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO) |
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#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) |
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#define S_IRWXU 00700 |
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#define S_IRUSR 00400 |
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#define S_IWUSR 00200 |
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#define S_IXUSR 00100 |
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#define S_IRWXG 00070 |
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#define S_IRGRP 00040 |
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#define S_IWGRP 00020 |
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#define S_IXGRP 00010 |
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#define S_IRWXO 00007 |
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#define S_IROTH 00004 |
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#define S_IWOTH 00002 |
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#define S_IXOTH 00001 |
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#endif |
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/* |
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* Timestamp structure for the timestamps in struct statx. |
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* |
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* tv_sec holds the number of seconds before (negative) or after (positive) |
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* 00:00:00 1st January 1970 UTC. |
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* |
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* tv_nsec holds a number of nanoseconds (0..999,999,999) after the tv_sec time. |
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* |
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* __reserved is held in case we need a yet finer resolution. |
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*/ |
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struct statx_timestamp { |
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__s64 tv_sec; |
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__u32 tv_nsec; |
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__s32 __reserved; |
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}; |
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/* |
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* Structures for the extended file attribute retrieval system call |
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* (statx()). |
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* |
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* The caller passes a mask of what they're specifically interested in as a |
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* parameter to statx(). What statx() actually got will be indicated in |
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* st_mask upon return. |
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* |
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* For each bit in the mask argument: |
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* |
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* - if the datum is not supported: |
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* |
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* - the bit will be cleared, and |
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* |
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* - the datum will be set to an appropriate fabricated value if one is |
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* available (eg. CIFS can take a default uid and gid), otherwise |
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* |
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* - the field will be cleared; |
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* |
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* - otherwise, if explicitly requested: |
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* |
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* - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is |
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* set or if the datum is considered out of date, and |
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* |
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* - the field will be filled in and the bit will be set; |
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* |
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* - otherwise, if not requested, but available in approximate form without any |
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* effort, it will be filled in anyway, and the bit will be set upon return |
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* (it might not be up to date, however, and no attempt will be made to |
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* synchronise the internal state first); |
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* |
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* - otherwise the field and the bit will be cleared before returning. |
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* |
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* Items in STATX_BASIC_STATS may be marked unavailable on return, but they |
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* will have values installed for compatibility purposes so that stat() and |
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* co. can be emulated in userspace. |
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*/ |
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struct statx { |
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/* 0x00 */ |
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__u32 stx_mask; /* What results were written [uncond] */ |
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__u32 stx_blksize; /* Preferred general I/O size [uncond] */ |
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__u64 stx_attributes; /* Flags conveying information about the file [uncond] */ |
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/* 0x10 */ |
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__u32 stx_nlink; /* Number of hard links */ |
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__u32 stx_uid; /* User ID of owner */ |
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__u32 stx_gid; /* Group ID of owner */ |
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__u16 stx_mode; /* File mode */ |
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__u16 __spare0[1]; |
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/* 0x20 */ |
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__u64 stx_ino; /* Inode number */ |
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__u64 stx_size; /* File size */ |
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__u64 stx_blocks; /* Number of 512-byte blocks allocated */ |
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__u64 stx_attributes_mask; /* Mask to show what's supported in stx_attributes */ |
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/* 0x40 */ |
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struct statx_timestamp stx_atime; /* Last access time */ |
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struct statx_timestamp stx_btime; /* File creation time */ |
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struct statx_timestamp stx_ctime; /* Last attribute change time */ |
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struct statx_timestamp stx_mtime; /* Last data modification time */ |
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/* 0x80 */ |
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__u32 stx_rdev_major; /* Device ID of special file [if bdev/cdev] */ |
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__u32 stx_rdev_minor; |
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__u32 stx_dev_major; /* ID of device containing file [uncond] */ |
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__u32 stx_dev_minor; |
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/* 0x90 */ |
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__u64 stx_mnt_id; |
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__u64 __spare2; |
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/* 0xa0 */ |
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__u64 __spare3[12]; /* Spare space for future expansion */ |
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/* 0x100 */ |
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}; |
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/* |
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* Flags to be stx_mask |
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* |
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* Query request/result mask for statx() and struct statx::stx_mask. |
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* |
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* These bits should be set in the mask argument of statx() to request |
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* particular items when calling statx(). |
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*/ |
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#define STATX_TYPE 0x00000001U /* Want/got stx_mode & S_IFMT */ |
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#define STATX_MODE 0x00000002U /* Want/got stx_mode & ~S_IFMT */ |
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#define STATX_NLINK 0x00000004U /* Want/got stx_nlink */ |
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#define STATX_UID 0x00000008U /* Want/got stx_uid */ |
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#define STATX_GID 0x00000010U /* Want/got stx_gid */ |
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#define STATX_ATIME 0x00000020U /* Want/got stx_atime */ |
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#define STATX_MTIME 0x00000040U /* Want/got stx_mtime */ |
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#define STATX_CTIME 0x00000080U /* Want/got stx_ctime */ |
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#define STATX_INO 0x00000100U /* Want/got stx_ino */ |
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#define STATX_SIZE 0x00000200U /* Want/got stx_size */ |
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#define STATX_BLOCKS 0x00000400U /* Want/got stx_blocks */ |
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#define STATX_BASIC_STATS 0x000007ffU /* The stuff in the normal stat struct */ |
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#define STATX_BTIME 0x00000800U /* Want/got stx_btime */ |
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#define STATX_MNT_ID 0x00001000U /* Got stx_mnt_id */ |
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#define STATX__RESERVED 0x80000000U /* Reserved for future struct statx expansion */ |
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#ifndef __KERNEL__ |
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/* |
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* This is deprecated, and shall remain the same value in the future. To avoid |
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* confusion please use the equivalent (STATX_BASIC_STATS | STATX_BTIME) |
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* instead. |
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*/ |
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#define STATX_ALL 0x00000fffU |
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#endif |
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/* |
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* Attributes to be found in stx_attributes and masked in stx_attributes_mask. |
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* |
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* These give information about the features or the state of a file that might |
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* be of use to ordinary userspace programs such as GUIs or ls rather than |
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* specialised tools. |
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* |
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* Note that the flags marked [I] correspond to the FS_IOC_SETFLAGS flags |
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* semantically. Where possible, the numerical value is picked to correspond |
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* also. Note that the DAX attribute indicates that the file is in the CPU |
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* direct access state. It does not correspond to the per-inode flag that |
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* some filesystems support. |
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* |
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*/ |
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#define STATX_ATTR_COMPRESSED 0x00000004 /* [I] File is compressed by the fs */ |
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#define STATX_ATTR_IMMUTABLE 0x00000010 /* [I] File is marked immutable */ |
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#define STATX_ATTR_APPEND 0x00000020 /* [I] File is append-only */ |
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#define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */ |
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#define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */ |
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#define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */ |
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#define STATX_ATTR_MOUNT_ROOT 0x00002000 /* Root of a mount */ |
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#define STATX_ATTR_VERITY 0x00100000 /* [I] Verity protected file */ |
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#define STATX_ATTR_DAX 0x00200000 /* File is currently in DAX state */ |
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#endif /* _UAPI_LINUX_STAT_H */
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