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-rw-r--r--include/linux/fuse.h259
1 files changed, 259 insertions, 0 deletions
diff --git a/include/linux/fuse.h b/include/linux/fuse.h
new file mode 100644
index 000000000000..acbeb96a3353
--- /dev/null
+++ b/include/linux/fuse.h
@@ -0,0 +1,259 @@
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 */
14#define FUSE_KERNEL_VERSION 7
15
16/** Minor version number of this interface */
17#define FUSE_KERNEL_MINOR_VERSION 2
18
19/** The node ID of the root inode */
20#define FUSE_ROOT_ID 1
21
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
28/* Make sure all structures are padded to 64bit boundary, so 32bit
29 userspace works under 64bit kernels */
30
31struct fuse_attr {
32 __u64 ino;
33 __u64 size;
34 __u64 blocks;
35 __u64 atime;
36 __u64 mtime;
37 __u64 ctime;
38 __u32 atimensec;
39 __u32 mtimensec;
40 __u32 ctimensec;
41 __u32 mode;
42 __u32 nlink;
43 __u32 uid;
44 __u32 gid;
45 __u32 rdev;
46};
47
48struct fuse_kstatfs {
49 __u64 blocks;
50 __u64 bfree;
51 __u64 bavail;
52 __u64 files;
53 __u64 ffree;
54 __u32 bsize;
55 __u32 namelen;
56};
57
58#define FATTR_MODE (1 << 0)
59#define FATTR_UID (1 << 1)
60#define FATTR_GID (1 << 2)
61#define FATTR_SIZE (1 << 3)
62#define FATTR_ATIME (1 << 4)
63#define FATTR_MTIME (1 << 5)
64#define FATTR_CTIME (1 << 6)
65
66/**
67 * Flags returned by the OPEN request
68 *
69 * FOPEN_DIRECT_IO: bypass page cache for this open file
70 * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
71 */
72#define FOPEN_DIRECT_IO (1 << 0)
73#define FOPEN_KEEP_CACHE (1 << 1)
74
75enum fuse_opcode {
76 FUSE_LOOKUP = 1,
77 FUSE_FORGET = 2, /* no reply */
78 FUSE_GETATTR = 3,
79 FUSE_SETATTR = 4,
80 FUSE_READLINK = 5,
81 FUSE_SYMLINK = 6,
82 FUSE_MKNOD = 8,
83 FUSE_MKDIR = 9,
84 FUSE_UNLINK = 10,
85 FUSE_RMDIR = 11,
86 FUSE_RENAME = 12,
87 FUSE_LINK = 13,
88 FUSE_OPEN = 14,
89 FUSE_READ = 15,
90 FUSE_WRITE = 16,
91 FUSE_STATFS = 17,
92 FUSE_RELEASE = 18,
93 FUSE_FSYNC = 20,
94 FUSE_SETXATTR = 21,
95 FUSE_GETXATTR = 22,
96 FUSE_LISTXATTR = 23,
97 FUSE_REMOVEXATTR = 24,
98 FUSE_FLUSH = 25,
99 FUSE_INIT = 26,
100 FUSE_OPENDIR = 27,
101 FUSE_READDIR = 28,
102 FUSE_RELEASEDIR = 29,
103 FUSE_FSYNCDIR = 30
104};
105
106/* Conservative buffer size for the client */
107#define FUSE_MAX_IN 8192
108
109#define FUSE_NAME_MAX 1024
110#define FUSE_SYMLINK_MAX 4096
111#define FUSE_XATTR_SIZE_MAX 4096
112
113struct fuse_entry_out {
114 __u64 nodeid; /* Inode ID */
115 __u64 generation; /* Inode generation: nodeid:gen must
116 be unique for the fs's lifetime */
117 __u64 entry_valid; /* Cache timeout for the name */
118 __u64 attr_valid; /* Cache timeout for the attributes */
119 __u32 entry_valid_nsec;
120 __u32 attr_valid_nsec;
121 struct fuse_attr attr;
122};
123
124struct fuse_forget_in {
125 __u64 nlookup;
126};
127
128struct fuse_attr_out {
129 __u64 attr_valid; /* Cache timeout for the attributes */
130 __u32 attr_valid_nsec;
131 __u32 dummy;
132 struct fuse_attr attr;
133};
134
135struct fuse_mknod_in {
136 __u32 mode;
137 __u32 rdev;
138};
139
140struct fuse_mkdir_in {
141 __u32 mode;
142 __u32 padding;
143};
144
145struct fuse_rename_in {
146 __u64 newdir;
147};
148
149struct fuse_link_in {
150 __u64 oldnodeid;
151};
152
153struct fuse_setattr_in {
154 __u32 valid;
155 __u32 padding;
156 struct fuse_attr attr;
157};
158
159struct fuse_open_in {
160 __u32 flags;
161 __u32 padding;
162};
163
164struct fuse_open_out {
165 __u64 fh;
166 __u32 open_flags;
167 __u32 padding;
168};
169
170struct fuse_release_in {
171 __u64 fh;
172 __u32 flags;
173 __u32 padding;
174};
175
176struct fuse_flush_in {
177 __u64 fh;
178 __u32 flush_flags;
179 __u32 padding;
180};
181
182struct fuse_read_in {
183 __u64 fh;
184 __u64 offset;
185 __u32 size;
186 __u32 padding;
187};
188
189struct fuse_write_in {
190 __u64 fh;
191 __u64 offset;
192 __u32 size;
193 __u32 write_flags;
194};
195
196struct fuse_write_out {
197 __u32 size;
198 __u32 padding;
199};
200
201struct fuse_statfs_out {
202 struct fuse_kstatfs st;
203};
204
205struct fuse_fsync_in {
206 __u64 fh;
207 __u32 fsync_flags;
208 __u32 padding;
209};
210
211struct fuse_setxattr_in {
212 __u32 size;
213 __u32 flags;
214};
215
216struct fuse_getxattr_in {
217 __u32 size;
218 __u32 padding;
219};
220
221struct fuse_getxattr_out {
222 __u32 size;
223 __u32 padding;
224};
225
226struct fuse_init_in_out {
227 __u32 major;
228 __u32 minor;
229};
230
231struct fuse_in_header {
232 __u32 len;
233 __u32 opcode;
234 __u64 unique;
235 __u64 nodeid;
236 __u32 uid;
237 __u32 gid;
238 __u32 pid;
239 __u32 padding;
240};
241
242struct fuse_out_header {
243 __u32 len;
244 __s32 error;
245 __u64 unique;
246};
247
248struct fuse_dirent {
249 __u64 ino;
250 __u64 off;
251 __u32 namelen;
252 __u32 type;
253 char name[0];
254};
255
256#define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name)
257#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
258#define FUSE_DIRENT_SIZE(d) \
259 FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
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