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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - fs/hostfs/hostfs.h
7 * These are exactly the same definitions as in fs.h, but the names are
8 * changed so that this file can be included in both kernel and user files.
11 #define HOSTFS_ATTR_MODE 1
12 #define HOSTFS_ATTR_UID 2
13 #define HOSTFS_ATTR_GID 4
14 #define HOSTFS_ATTR_SIZE 8
15 #define HOSTFS_ATTR_ATIME 16
16 #define HOSTFS_ATTR_MTIME 32
17 #define HOSTFS_ATTR_CTIME 64
18 #define HOSTFS_ATTR_ATIME_SET 128
19 #define HOSTFS_ATTR_MTIME_SET 256
21 /* These two are unused by hostfs. */
22 #define HOSTFS_ATTR_FORCE 512 /* Not a change, but a change it */
23 #define HOSTFS_ATTR_ATTR_FLAG 1024
26 * If you are very careful, you'll notice that these two are missing:
28 * #define ATTR_KILL_SUID 2048
29 * #define ATTR_KILL_SGID 4096
31 * and this is because they were added in 2.5 development.
32 * Actually, they are not needed by most ->setattr() methods - they are set by
33 * callers of notify_change() to notify that the setuid/setgid bits must be
35 * notify_change() will delete those flags, make sure attr->ia_valid & ATTR_MODE
36 * is on, and remove the appropriate bits from attr->ia_mode (attr is a
37 * "struct iattr *"). -BlaisorBlade
41 unsigned int ia_valid
;
42 unsigned short ia_mode
;
46 struct timespec ia_atime
;
47 struct timespec ia_mtime
;
48 struct timespec ia_ctime
;
52 unsigned long long ino
;
57 unsigned long long size
;
58 struct timespec atime
, mtime
, ctime
;
60 unsigned long long blocks
;
65 extern int stat_file(const char *path
, struct hostfs_stat
*p
, int fd
);
66 extern int access_file(char *path
, int r
, int w
, int x
);
67 extern int open_file(char *path
, int r
, int w
, int append
);
68 extern void *open_dir(char *path
, int *err_out
);
69 extern char *read_dir(void *stream
, unsigned long long *pos
,
70 unsigned long long *ino_out
, int *len_out
,
71 unsigned int *type_out
);
72 extern void close_file(void *stream
);
73 extern int replace_file(int oldfd
, int fd
);
74 extern void close_dir(void *stream
);
75 extern int read_file(int fd
, unsigned long long *offset
, char *buf
, int len
);
76 extern int write_file(int fd
, unsigned long long *offset
, const char *buf
,
78 extern int lseek_file(int fd
, long long offset
, int whence
);
79 extern int fsync_file(int fd
, int datasync
);
80 extern int file_create(char *name
, int ur
, int uw
, int ux
, int gr
,
81 int gw
, int gx
, int or, int ow
, int ox
);
82 extern int set_attr(const char *file
, struct hostfs_iattr
*attrs
, int fd
);
83 extern int make_symlink(const char *from
, const char *to
);
84 extern int unlink_file(const char *file
);
85 extern int do_mkdir(const char *file
, int mode
);
86 extern int do_rmdir(const char *file
);
87 extern int do_mknod(const char *file
, int mode
, unsigned int major
,
89 extern int link_file(const char *from
, const char *to
);
90 extern int hostfs_do_readlink(char *file
, char *buf
, int size
);
91 extern int rename_file(char *from
, char *to
);
92 extern int do_statfs(char *root
, long *bsize_out
, long long *blocks_out
,
93 long long *bfree_out
, long long *bavail_out
,
94 long long *files_out
, long long *ffree_out
,
95 void *fsid_out
, int fsid_size
, long *namelen_out
);