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
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)
65 FUSE_FORGET = 2, /* no reply */
87 /* Conservative buffer size for the client */
88 #define FUSE_MAX_IN 8192
90 #define FUSE_NAME_MAX 1024
91 #define FUSE_SYMLINK_MAX 4096
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;
104 struct fuse_forget_in {
108 struct fuse_attr_out {
109 __u64 attr_valid; /* Cache timeout for the attributes */
110 __u32 attr_valid_nsec;
112 struct fuse_attr attr;
115 struct fuse_getdir_out {
119 struct fuse_mknod_in {
124 struct fuse_mkdir_in {
128 struct fuse_rename_in {
132 struct fuse_link_in {
136 struct fuse_setattr_in {
138 struct fuse_attr attr;
141 struct fuse_open_in {
145 struct fuse_open_out {
150 struct fuse_release_in {
155 struct fuse_flush_in {
160 struct fuse_read_in {
166 struct fuse_write_in {
173 struct fuse_write_out {
177 struct fuse_statfs_out {
178 struct fuse_kstatfs st;
181 struct fuse_fsync_in {
186 struct fuse_init_in_out {
191 struct fuse_in_header {
201 struct fuse_out_header {
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)