Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef __UM_FS_HOSTFS |
2 | #define __UM_FS_HOSTFS | |
3 | ||
4 | #include "os.h" | |
5 | ||
84b3db04 JD |
6 | /* |
7 | * These are exactly the same definitions as in fs.h, but the names are | |
1da177e4 LT |
8 | * changed so that this file can be included in both kernel and user files. |
9 | */ | |
10 | ||
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 | |
20 | ||
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 | |
24 | ||
84b3db04 JD |
25 | /* |
26 | * If you are very careful, you'll notice that these two are missing: | |
1da177e4 LT |
27 | * |
28 | * #define ATTR_KILL_SUID 2048 | |
29 | * #define ATTR_KILL_SGID 4096 | |
30 | * | |
631dd1a8 | 31 | * and this is because they were added in 2.5 development. |
1da177e4 LT |
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 | |
34 | * dropped. | |
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 | |
38 | */ | |
39 | ||
40 | struct hostfs_iattr { | |
41 | unsigned int ia_valid; | |
138d570d | 42 | unsigned short ia_mode; |
1da177e4 LT |
43 | uid_t ia_uid; |
44 | gid_t ia_gid; | |
45 | loff_t ia_size; | |
46 | struct timespec ia_atime; | |
47 | struct timespec ia_mtime; | |
48 | struct timespec ia_ctime; | |
1da177e4 LT |
49 | }; |
50 | ||
39b743c6 AV |
51 | struct hostfs_stat { |
52 | unsigned long long ino; | |
53 | unsigned int mode; | |
54 | unsigned int nlink; | |
55 | unsigned int uid; | |
56 | unsigned int gid; | |
57 | unsigned long long size; | |
58 | struct timespec atime, mtime, ctime; | |
59 | unsigned int blksize; | |
60 | unsigned long long blocks; | |
61 | unsigned int maj; | |
62 | unsigned int min; | |
63 | }; | |
64 | ||
65 | extern int stat_file(const char *path, struct hostfs_stat *p, int fd); | |
1da177e4 LT |
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); | |
1da177e4 LT |
68 | extern void *open_dir(char *path, int *err_out); |
69 | extern char *read_dir(void *stream, unsigned long long *pos, | |
3ee6bd8e GU |
70 | unsigned long long *ino_out, int *len_out, |
71 | unsigned int *type_out); | |
1da177e4 | 72 | extern void close_file(void *stream); |
f8ad850f | 73 | extern int replace_file(int oldfd, int fd); |
1da177e4 LT |
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, | |
77 | int len); | |
78 | extern int lseek_file(int fd, long long offset, int whence); | |
a2d76bd8 | 79 | extern int fsync_file(int fd, int datasync); |
1da177e4 LT |
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); | |
5822b7fa | 82 | extern int set_attr(const char *file, struct hostfs_iattr *attrs, int fd); |
1da177e4 LT |
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); | |
84b3db04 JD |
87 | extern int do_mknod(const char *file, int mode, unsigned int major, |
88 | unsigned int minor); | |
1da177e4 | 89 | extern int link_file(const char *from, const char *to); |
ea7e743e | 90 | extern int hostfs_do_readlink(char *file, char *buf, int size); |
1da177e4 LT |
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, | |
1b627d57 | 95 | void *fsid_out, int fsid_size, long *namelen_out); |
1da177e4 LT |
96 | |
97 | #endif |