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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, | |
b6aeaded MS |
77 | FUSE_OPEN = 14, |
78 | FUSE_READ = 15, | |
79 | FUSE_WRITE = 16, | |
e5e5558e | 80 | FUSE_STATFS = 17, |
b6aeaded MS |
81 | FUSE_RELEASE = 18, |
82 | FUSE_FSYNC = 20, | |
83 | FUSE_FLUSH = 25, | |
334f485d MS |
84 | FUSE_INIT = 26 |
85 | }; | |
86 | ||
87 | /* Conservative buffer size for the client */ | |
88 | #define FUSE_MAX_IN 8192 | |
89 | ||
e5e5558e | 90 | #define FUSE_NAME_MAX 1024 |
9e6268db | 91 | #define FUSE_SYMLINK_MAX 4096 |
e5e5558e MS |
92 | |
93 | struct fuse_entry_out { | |
94 | __u64 nodeid; /* Inode ID */ | |
95 | __u64 generation; /* Inode generation: nodeid:gen must | |
96 | be unique for the fs's lifetime */ | |
97 | __u64 entry_valid; /* Cache timeout for the name */ | |
98 | __u64 attr_valid; /* Cache timeout for the attributes */ | |
99 | __u32 entry_valid_nsec; | |
100 | __u32 attr_valid_nsec; | |
101 | struct fuse_attr attr; | |
102 | }; | |
103 | ||
104 | struct fuse_forget_in { | |
9e6268db | 105 | __u64 nlookup; |
e5e5558e MS |
106 | }; |
107 | ||
108 | struct fuse_attr_out { | |
109 | __u64 attr_valid; /* Cache timeout for the attributes */ | |
110 | __u32 attr_valid_nsec; | |
111 | __u32 dummy; | |
112 | struct fuse_attr attr; | |
113 | }; | |
114 | ||
115 | struct fuse_getdir_out { | |
116 | __u32 fd; | |
117 | }; | |
118 | ||
9e6268db MS |
119 | struct fuse_mknod_in { |
120 | __u32 mode; | |
121 | __u32 rdev; | |
122 | }; | |
123 | ||
124 | struct fuse_mkdir_in { | |
125 | __u32 mode; | |
126 | }; | |
127 | ||
128 | struct fuse_rename_in { | |
129 | __u64 newdir; | |
130 | }; | |
131 | ||
132 | struct fuse_link_in { | |
133 | __u64 oldnodeid; | |
134 | }; | |
135 | ||
136 | struct fuse_setattr_in { | |
137 | __u32 valid; | |
138 | struct fuse_attr attr; | |
139 | }; | |
140 | ||
b6aeaded MS |
141 | struct fuse_open_in { |
142 | __u32 flags; | |
143 | }; | |
144 | ||
145 | struct fuse_open_out { | |
146 | __u64 fh; | |
147 | __u32 open_flags; | |
148 | }; | |
149 | ||
150 | struct fuse_release_in { | |
151 | __u64 fh; | |
152 | __u32 flags; | |
153 | }; | |
154 | ||
155 | struct fuse_flush_in { | |
156 | __u64 fh; | |
157 | __u32 flush_flags; | |
158 | }; | |
159 | ||
160 | struct fuse_read_in { | |
161 | __u64 fh; | |
162 | __u64 offset; | |
163 | __u32 size; | |
164 | }; | |
165 | ||
166 | struct fuse_write_in { | |
167 | __u64 fh; | |
168 | __u64 offset; | |
169 | __u32 size; | |
170 | __u32 write_flags; | |
171 | }; | |
172 | ||
173 | struct fuse_write_out { | |
174 | __u32 size; | |
175 | }; | |
176 | ||
e5e5558e MS |
177 | struct fuse_statfs_out { |
178 | struct fuse_kstatfs st; | |
179 | }; | |
180 | ||
b6aeaded MS |
181 | struct fuse_fsync_in { |
182 | __u64 fh; | |
183 | __u32 fsync_flags; | |
184 | }; | |
185 | ||
334f485d MS |
186 | struct fuse_init_in_out { |
187 | __u32 major; | |
188 | __u32 minor; | |
189 | }; | |
190 | ||
191 | struct fuse_in_header { | |
192 | __u32 len; | |
193 | __u32 opcode; | |
194 | __u64 unique; | |
195 | __u64 nodeid; | |
196 | __u32 uid; | |
197 | __u32 gid; | |
198 | __u32 pid; | |
199 | }; | |
200 | ||
201 | struct fuse_out_header { | |
202 | __u32 len; | |
203 | __s32 error; | |
204 | __u64 unique; | |
205 | }; | |
206 | ||
e5e5558e MS |
207 | struct fuse_dirent { |
208 | __u64 ino; | |
209 | __u64 off; | |
210 | __u32 namelen; | |
211 | __u32 type; | |
212 | char name[0]; | |
213 | }; | |
214 | ||
215 | #define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name) | |
216 | #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1)) | |
217 | #define FUSE_DIRENT_SIZE(d) \ | |
218 | FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) |