2 FUSE: Filesystem in Userspace
3 Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu>
5 This program can be distributed under the terms of the GNU GPL.
9 /* This file defines the kernel interface of FUSE */
11 #include <asm/types.h>
13 /** Version number of this interface */
14 #define FUSE_KERNEL_VERSION 7
16 /** Minor version number of this interface */
17 #define FUSE_KERNEL_MINOR_VERSION 1
19 /** The node ID of the root inode */
20 #define FUSE_ROOT_ID 1
22 /** The major number of the fuse character device */
25 /** The minor number of the fuse character device */
26 #define FUSE_MINOR 229
28 /* Make sure all structures are padded to 64bit boundary, so 32bit
29 userspace works under 64bit kernels */
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)
68 FUSE_FORGET = 2, /* no reply */
89 FUSE_REMOVEXATTR = 24,
94 /* Conservative buffer size for the client */
95 #define FUSE_MAX_IN 8192
97 #define FUSE_NAME_MAX 1024
98 #define FUSE_SYMLINK_MAX 4096
99 #define FUSE_XATTR_SIZE_MAX 4096
101 struct fuse_entry_out {
102 __u64 nodeid; /* Inode ID */
103 __u64 generation; /* Inode generation: nodeid:gen must
104 be unique for the fs's lifetime */
105 __u64 entry_valid; /* Cache timeout for the name */
106 __u64 attr_valid; /* Cache timeout for the attributes */
107 __u32 entry_valid_nsec;
108 __u32 attr_valid_nsec;
109 struct fuse_attr attr;
112 struct fuse_forget_in {
116 struct fuse_attr_out {
117 __u64 attr_valid; /* Cache timeout for the attributes */
118 __u32 attr_valid_nsec;
120 struct fuse_attr attr;
123 struct fuse_getdir_out {
127 struct fuse_mknod_in {
132 struct fuse_mkdir_in {
137 struct fuse_rename_in {
141 struct fuse_link_in {
145 struct fuse_setattr_in {
148 struct fuse_attr attr;
151 struct fuse_open_in {
156 struct fuse_open_out {
162 struct fuse_release_in {
168 struct fuse_flush_in {
174 struct fuse_read_in {
181 struct fuse_write_in {
188 struct fuse_write_out {
193 struct fuse_statfs_out {
194 struct fuse_kstatfs st;
197 struct fuse_fsync_in {
203 struct fuse_setxattr_in {
208 struct fuse_getxattr_in {
213 struct fuse_getxattr_out {
218 struct fuse_init_in_out {
223 struct fuse_in_header {
234 struct fuse_out_header {
248 #define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name)
249 #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
250 #define FUSE_DIRENT_SIZE(d) \
251 FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)