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d8a5ba45 MS |
1 | /* |
2 | FUSE: Filesystem in Userspace | |
3 | Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu> | |
4 | ||
5 | This program can be distributed under the terms of the GNU GPL. | |
6 | See the file COPYING. | |
7 | */ | |
8 | ||
9 | /* This file defines the kernel interface of FUSE */ | |
10 | ||
11 | #include <asm/types.h> | |
12 | ||
13 | /** Version number of this interface */ | |
9e6268db | 14 | #define FUSE_KERNEL_VERSION 7 |
d8a5ba45 MS |
15 | |
16 | /** Minor version number of this interface */ | |
17 | #define FUSE_KERNEL_MINOR_VERSION 1 | |
18 | ||
19 | /** The node ID of the root inode */ | |
20 | #define FUSE_ROOT_ID 1 | |
21 | ||
334f485d MS |
22 | /** The major number of the fuse character device */ |
23 | #define FUSE_MAJOR 10 | |
24 | ||
25 | /** The minor number of the fuse character device */ | |
26 | #define FUSE_MINOR 229 | |
27 | ||
d8a5ba45 MS |
28 | struct fuse_attr { |
29 | __u64 ino; | |
30 | __u64 size; | |
31 | __u64 blocks; | |
32 | __u64 atime; | |
33 | __u64 mtime; | |
34 | __u64 ctime; | |
35 | __u32 atimensec; | |
36 | __u32 mtimensec; | |
37 | __u32 ctimensec; | |
38 | __u32 mode; | |
39 | __u32 nlink; | |
40 | __u32 uid; | |
41 | __u32 gid; | |
42 | __u32 rdev; | |
43 | }; | |
44 | ||
e5e5558e MS |
45 | struct fuse_kstatfs { |
46 | __u64 blocks; | |
47 | __u64 bfree; | |
48 | __u64 bavail; | |
49 | __u64 files; | |
50 | __u64 ffree; | |
51 | __u32 bsize; | |
52 | __u32 namelen; | |
53 | }; | |
54 | ||
9e6268db MS |
55 | #define FATTR_MODE (1 << 0) |
56 | #define FATTR_UID (1 << 1) | |
57 | #define FATTR_GID (1 << 2) | |
58 | #define FATTR_SIZE (1 << 3) | |
59 | #define FATTR_ATIME (1 << 4) | |
60 | #define FATTR_MTIME (1 << 5) | |
61 | #define FATTR_CTIME (1 << 6) | |
62 | ||
334f485d | 63 | enum fuse_opcode { |
e5e5558e MS |
64 | FUSE_LOOKUP = 1, |
65 | FUSE_FORGET = 2, /* no reply */ | |
66 | FUSE_GETATTR = 3, | |
9e6268db | 67 | FUSE_SETATTR = 4, |
e5e5558e | 68 | FUSE_READLINK = 5, |
9e6268db | 69 | FUSE_SYMLINK = 6, |
e5e5558e | 70 | FUSE_GETDIR = 7, |
9e6268db MS |
71 | FUSE_MKNOD = 8, |
72 | FUSE_MKDIR = 9, | |
73 | FUSE_UNLINK = 10, | |
74 | FUSE_RMDIR = 11, | |
75 | FUSE_RENAME = 12, | |
76 | FUSE_LINK = 13, | |
e5e5558e | 77 | FUSE_STATFS = 17, |
334f485d MS |
78 | FUSE_INIT = 26 |
79 | }; | |
80 | ||
81 | /* Conservative buffer size for the client */ | |
82 | #define FUSE_MAX_IN 8192 | |
83 | ||
e5e5558e | 84 | #define FUSE_NAME_MAX 1024 |
9e6268db | 85 | #define FUSE_SYMLINK_MAX 4096 |
e5e5558e MS |
86 | |
87 | struct fuse_entry_out { | |
88 | __u64 nodeid; /* Inode ID */ | |
89 | __u64 generation; /* Inode generation: nodeid:gen must | |
90 | be unique for the fs's lifetime */ | |
91 | __u64 entry_valid; /* Cache timeout for the name */ | |
92 | __u64 attr_valid; /* Cache timeout for the attributes */ | |
93 | __u32 entry_valid_nsec; | |
94 | __u32 attr_valid_nsec; | |
95 | struct fuse_attr attr; | |
96 | }; | |
97 | ||
98 | struct fuse_forget_in { | |
9e6268db | 99 | __u64 nlookup; |
e5e5558e MS |
100 | }; |
101 | ||
102 | struct fuse_attr_out { | |
103 | __u64 attr_valid; /* Cache timeout for the attributes */ | |
104 | __u32 attr_valid_nsec; | |
105 | __u32 dummy; | |
106 | struct fuse_attr attr; | |
107 | }; | |
108 | ||
109 | struct fuse_getdir_out { | |
110 | __u32 fd; | |
111 | }; | |
112 | ||
9e6268db MS |
113 | struct fuse_mknod_in { |
114 | __u32 mode; | |
115 | __u32 rdev; | |
116 | }; | |
117 | ||
118 | struct fuse_mkdir_in { | |
119 | __u32 mode; | |
120 | }; | |
121 | ||
122 | struct fuse_rename_in { | |
123 | __u64 newdir; | |
124 | }; | |
125 | ||
126 | struct fuse_link_in { | |
127 | __u64 oldnodeid; | |
128 | }; | |
129 | ||
130 | struct fuse_setattr_in { | |
131 | __u32 valid; | |
132 | struct fuse_attr attr; | |
133 | }; | |
134 | ||
e5e5558e MS |
135 | struct fuse_statfs_out { |
136 | struct fuse_kstatfs st; | |
137 | }; | |
138 | ||
334f485d MS |
139 | struct fuse_init_in_out { |
140 | __u32 major; | |
141 | __u32 minor; | |
142 | }; | |
143 | ||
144 | struct fuse_in_header { | |
145 | __u32 len; | |
146 | __u32 opcode; | |
147 | __u64 unique; | |
148 | __u64 nodeid; | |
149 | __u32 uid; | |
150 | __u32 gid; | |
151 | __u32 pid; | |
152 | }; | |
153 | ||
154 | struct fuse_out_header { | |
155 | __u32 len; | |
156 | __s32 error; | |
157 | __u64 unique; | |
158 | }; | |
159 | ||
e5e5558e MS |
160 | struct fuse_dirent { |
161 | __u64 ino; | |
162 | __u64 off; | |
163 | __u32 namelen; | |
164 | __u32 type; | |
165 | char name[0]; | |
166 | }; | |
167 | ||
168 | #define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name) | |
169 | #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1)) | |
170 | #define FUSE_DIRENT_SIZE(d) \ | |
171 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) |