| #ifndef XFS_IO_STATX_H |
| #define XFS_IO_STATX_H |
| |
| #include <unistd.h> |
| #include <sys/syscall.h> |
| |
| #ifndef AT_EMPTY_PATH |
| #define AT_EMPTY_PATH 0x1000 |
| #endif |
| |
| #ifndef AT_STATX_SYNC_TYPE |
| #define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */ |
| #define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */ |
| #define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */ |
| #define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */ |
| #endif |
| |
| #ifndef AT_NO_AUTOMOUNT |
| #define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */ |
| #endif |
| |
| #ifndef __NR_statx |
| # if defined(__i386__) || defined(__powerpc__) |
| # define __NR_statx 383 |
| # elif defined (__x86_64__) |
| # if defined (__ILP32__) |
| # define __NR_statx (__X32_SYSCALL_BIT + 332) |
| # else |
| # define __NR_statx 332 |
| # endif |
| # endif |
| #endif |
| |
| #ifndef STATX_TYPE |
| |
| /* |
| * Timestamp structure for the timestamps in struct statx. |
| * |
| * tv_sec holds the number of seconds before (negative) or after (positive) |
| * 00:00:00 1st January 1970 UTC. |
| * |
| * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is |
| * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time. |
| * |
| * Note that if both tv_sec and tv_nsec are non-zero, then the two values must |
| * either be both positive or both negative. |
| * |
| * __reserved is held in case we need a yet finer resolution. |
| */ |
| struct statx_timestamp { |
| __s64 tv_sec; |
| __s32 tv_nsec; |
| __s32 __reserved; |
| }; |
| |
| /* |
| * Structures for the extended file attribute retrieval system call |
| * (statx()). |
| * |
| * The caller passes a mask of what they're specifically interested in as a |
| * parameter to statx(). What statx() actually got will be indicated in |
| * st_mask upon return. |
| * |
| * For each bit in the mask argument: |
| * |
| * - if the datum is not supported: |
| * |
| * - the bit will be cleared, and |
| * |
| * - the datum will be set to an appropriate fabricated value if one is |
| * available (eg. CIFS can take a default uid and gid), otherwise |
| * |
| * - the field will be cleared; |
| * |
| * - otherwise, if explicitly requested: |
| * |
| * - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is |
| * set or if the datum is considered out of date, and |
| * |
| * - the field will be filled in and the bit will be set; |
| * |
| * - otherwise, if not requested, but available in approximate form without any |
| * effort, it will be filled in anyway, and the bit will be set upon return |
| * (it might not be up to date, however, and no attempt will be made to |
| * synchronise the internal state first); |
| * |
| * - otherwise the field and the bit will be cleared before returning. |
| * |
| * Items in STATX_BASIC_STATS may be marked unavailable on return, but they |
| * will have values installed for compatibility purposes so that stat() and |
| * co. can be emulated in userspace. |
| */ |
| struct statx { |
| /* 0x00 */ |
| __u32 stx_mask; /* What results were written [uncond] */ |
| __u32 stx_blksize; /* Preferred general I/O size [uncond] */ |
| __u64 stx_attributes; /* Flags conveying information about the file [uncond] */ |
| /* 0x10 */ |
| __u32 stx_nlink; /* Number of hard links */ |
| __u32 stx_uid; /* User ID of owner */ |
| __u32 stx_gid; /* Group ID of owner */ |
| __u16 stx_mode; /* File mode */ |
| __u16 __spare0[1]; |
| /* 0x20 */ |
| __u64 stx_ino; /* Inode number */ |
| __u64 stx_size; /* File size */ |
| __u64 stx_blocks; /* Number of 512-byte blocks allocated */ |
| __u64 __spare1[1]; |
| /* 0x40 */ |
| struct statx_timestamp stx_atime; /* Last access time */ |
| struct statx_timestamp stx_btime; /* File creation time */ |
| struct statx_timestamp stx_ctime; /* Last attribute change time */ |
| struct statx_timestamp stx_mtime; /* Last data modification time */ |
| /* 0x80 */ |
| __u32 stx_rdev_major; /* Device ID of special file [if bdev/cdev] */ |
| __u32 stx_rdev_minor; |
| __u32 stx_dev_major; /* ID of device containing file [uncond] */ |
| __u32 stx_dev_minor; |
| /* 0x90 */ |
| __u64 __spare2[14]; /* Spare space for future expansion */ |
| /* 0x100 */ |
| }; |
| |
| /* |
| * Flags to be stx_mask |
| * |
| * Query request/result mask for statx() and struct statx::stx_mask. |
| * |
| * These bits should be set in the mask argument of statx() to request |
| * particular items when calling statx(). |
| */ |
| #define STATX_TYPE 0x00000001U /* Want/got stx_mode & S_IFMT */ |
| #define STATX_MODE 0x00000002U /* Want/got stx_mode & ~S_IFMT */ |
| #define STATX_NLINK 0x00000004U /* Want/got stx_nlink */ |
| #define STATX_UID 0x00000008U /* Want/got stx_uid */ |
| #define STATX_GID 0x00000010U /* Want/got stx_gid */ |
| #define STATX_ATIME 0x00000020U /* Want/got stx_atime */ |
| #define STATX_MTIME 0x00000040U /* Want/got stx_mtime */ |
| #define STATX_CTIME 0x00000080U /* Want/got stx_ctime */ |
| #define STATX_INO 0x00000100U /* Want/got stx_ino */ |
| #define STATX_SIZE 0x00000200U /* Want/got stx_size */ |
| #define STATX_BLOCKS 0x00000400U /* Want/got stx_blocks */ |
| #define STATX_BASIC_STATS 0x000007ffU /* The stuff in the normal stat struct */ |
| #define STATX_BTIME 0x00000800U /* Want/got stx_btime */ |
| #define STATX_ALL 0x00000fffU /* All currently supported flags */ |
| #define STATX__RESERVED 0x80000000U /* Reserved for future struct statx expansion */ |
| |
| /* |
| * Attributes to be found in stx_attributes |
| * |
| * These give information about the features or the state of a file that might |
| * be of use to ordinary userspace programs such as GUIs or ls rather than |
| * specialised tools. |
| * |
| * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS |
| * semantically. Where possible, the numerical value is picked to correspond |
| * also. |
| */ |
| #define STATX_ATTR_COMPRESSED 0x00000004 /* [I] File is compressed by the fs */ |
| #define STATX_ATTR_IMMUTABLE 0x00000010 /* [I] File is marked immutable */ |
| #define STATX_ATTR_APPEND 0x00000020 /* [I] File is append-only */ |
| #define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */ |
| #define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */ |
| |
| #define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */ |
| |
| #endif /* STATX_TYPE */ |
| #endif /* XFS_IO_STATX_H */ |