Linux kernel mirror (for testing)
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linux
1#ifndef _UAPI_LINUX_STAT_H
2#define _UAPI_LINUX_STAT_H
3
4#include <linux/types.h>
5
6#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
7
8#define S_IFMT 00170000
9#define S_IFSOCK 0140000
10#define S_IFLNK 0120000
11#define S_IFREG 0100000
12#define S_IFBLK 0060000
13#define S_IFDIR 0040000
14#define S_IFCHR 0020000
15#define S_IFIFO 0010000
16#define S_ISUID 0004000
17#define S_ISGID 0002000
18#define S_ISVTX 0001000
19
20#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
21#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
22#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
23#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
24#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
25#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
26#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
27
28#define S_IRWXU 00700
29#define S_IRUSR 00400
30#define S_IWUSR 00200
31#define S_IXUSR 00100
32
33#define S_IRWXG 00070
34#define S_IRGRP 00040
35#define S_IWGRP 00020
36#define S_IXGRP 00010
37
38#define S_IRWXO 00007
39#define S_IROTH 00004
40#define S_IWOTH 00002
41#define S_IXOTH 00001
42
43#endif
44
45/*
46 * Timestamp structure for the timestamps in struct statx.
47 *
48 * tv_sec holds the number of seconds before (negative) or after (positive)
49 * 00:00:00 1st January 1970 UTC.
50 *
51 * tv_nsec holds a number of nanoseconds (0..999,999,999) after the tv_sec time.
52 *
53 * __reserved is held in case we need a yet finer resolution.
54 */
55struct statx_timestamp {
56 __s64 tv_sec;
57 __u32 tv_nsec;
58 __s32 __reserved;
59};
60
61/*
62 * Structures for the extended file attribute retrieval system call
63 * (statx()).
64 *
65 * The caller passes a mask of what they're specifically interested in as a
66 * parameter to statx(). What statx() actually got will be indicated in
67 * st_mask upon return.
68 *
69 * For each bit in the mask argument:
70 *
71 * - if the datum is not supported:
72 *
73 * - the bit will be cleared, and
74 *
75 * - the datum will be set to an appropriate fabricated value if one is
76 * available (eg. CIFS can take a default uid and gid), otherwise
77 *
78 * - the field will be cleared;
79 *
80 * - otherwise, if explicitly requested:
81 *
82 * - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
83 * set or if the datum is considered out of date, and
84 *
85 * - the field will be filled in and the bit will be set;
86 *
87 * - otherwise, if not requested, but available in approximate form without any
88 * effort, it will be filled in anyway, and the bit will be set upon return
89 * (it might not be up to date, however, and no attempt will be made to
90 * synchronise the internal state first);
91 *
92 * - otherwise the field and the bit will be cleared before returning.
93 *
94 * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
95 * will have values installed for compatibility purposes so that stat() and
96 * co. can be emulated in userspace.
97 */
98struct statx {
99 /* 0x00 */
100 __u32 stx_mask; /* What results were written [uncond] */
101 __u32 stx_blksize; /* Preferred general I/O size [uncond] */
102 __u64 stx_attributes; /* Flags conveying information about the file [uncond] */
103 /* 0x10 */
104 __u32 stx_nlink; /* Number of hard links */
105 __u32 stx_uid; /* User ID of owner */
106 __u32 stx_gid; /* Group ID of owner */
107 __u16 stx_mode; /* File mode */
108 __u16 __spare0[1];
109 /* 0x20 */
110 __u64 stx_ino; /* Inode number */
111 __u64 stx_size; /* File size */
112 __u64 stx_blocks; /* Number of 512-byte blocks allocated */
113 __u64 stx_attributes_mask; /* Mask to show what's supported in stx_attributes */
114 /* 0x40 */
115 struct statx_timestamp stx_atime; /* Last access time */
116 struct statx_timestamp stx_btime; /* File creation time */
117 struct statx_timestamp stx_ctime; /* Last attribute change time */
118 struct statx_timestamp stx_mtime; /* Last data modification time */
119 /* 0x80 */
120 __u32 stx_rdev_major; /* Device ID of special file [if bdev/cdev] */
121 __u32 stx_rdev_minor;
122 __u32 stx_dev_major; /* ID of device containing file [uncond] */
123 __u32 stx_dev_minor;
124 /* 0x90 */
125 __u64 __spare2[14]; /* Spare space for future expansion */
126 /* 0x100 */
127};
128
129/*
130 * Flags to be stx_mask
131 *
132 * Query request/result mask for statx() and struct statx::stx_mask.
133 *
134 * These bits should be set in the mask argument of statx() to request
135 * particular items when calling statx().
136 */
137#define STATX_TYPE 0x00000001U /* Want/got stx_mode & S_IFMT */
138#define STATX_MODE 0x00000002U /* Want/got stx_mode & ~S_IFMT */
139#define STATX_NLINK 0x00000004U /* Want/got stx_nlink */
140#define STATX_UID 0x00000008U /* Want/got stx_uid */
141#define STATX_GID 0x00000010U /* Want/got stx_gid */
142#define STATX_ATIME 0x00000020U /* Want/got stx_atime */
143#define STATX_MTIME 0x00000040U /* Want/got stx_mtime */
144#define STATX_CTIME 0x00000080U /* Want/got stx_ctime */
145#define STATX_INO 0x00000100U /* Want/got stx_ino */
146#define STATX_SIZE 0x00000200U /* Want/got stx_size */
147#define STATX_BLOCKS 0x00000400U /* Want/got stx_blocks */
148#define STATX_BASIC_STATS 0x000007ffU /* The stuff in the normal stat struct */
149#define STATX_BTIME 0x00000800U /* Want/got stx_btime */
150#define STATX_ALL 0x00000fffU /* All currently supported flags */
151#define STATX__RESERVED 0x80000000U /* Reserved for future struct statx expansion */
152
153/*
154 * Attributes to be found in stx_attributes and masked in stx_attributes_mask.
155 *
156 * These give information about the features or the state of a file that might
157 * be of use to ordinary userspace programs such as GUIs or ls rather than
158 * specialised tools.
159 *
160 * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
161 * semantically. Where possible, the numerical value is picked to correspond
162 * also.
163 */
164#define STATX_ATTR_COMPRESSED 0x00000004 /* [I] File is compressed by the fs */
165#define STATX_ATTR_IMMUTABLE 0x00000010 /* [I] File is marked immutable */
166#define STATX_ATTR_APPEND 0x00000020 /* [I] File is append-only */
167#define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */
168#define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */
169
170#define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */
171
172
173#endif /* _UAPI_LINUX_STAT_H */