| /* |
| FUSE: Filesystem in Userspace |
| Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu> |
| |
| This program can be distributed under the terms of the GNU GPL. |
| See the file COPYING. |
| */ |
| |
| /* This file defines the kernel interface of FUSE */ |
| |
| #ifdef __FreeBSD__ |
| /* |
| This -- and only this -- header file may also be distributed under |
| the terms of the BSD Licence as follows: |
| |
| Copyright (C) 2001-2006 Miklos Szeredi. All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE |
| FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| SUCH DAMAGE. |
| */ |
| |
| #include <sys/types.h> |
| #define __u64 uint64_t |
| #define __u32 uint32_t |
| #define __s32 int32_t |
| #else |
| #include <asm/types.h> |
| #endif |
| |
| /** Version number of this interface */ |
| #define FUSE_KERNEL_VERSION 7 |
| |
| /** Minor version number of this interface */ |
| #define FUSE_KERNEL_MINOR_VERSION 6 |
| |
| /** The node ID of the root inode */ |
| #define FUSE_ROOT_ID 1 |
| |
| /** The major number of the fuse character device */ |
| #define FUSE_MAJOR 10 |
| |
| /** The minor number of the fuse character device */ |
| #define FUSE_MINOR 229 |
| |
| /* Make sure all structures are padded to 64bit boundary, so 32bit |
| userspace works under 64bit kernels */ |
| |
| struct fuse_attr { |
| __u64 ino; |
| __u64 size; |
| __u64 blocks; |
| __u64 atime; |
| __u64 mtime; |
| __u64 ctime; |
| __u32 atimensec; |
| __u32 mtimensec; |
| __u32 ctimensec; |
| __u32 mode; |
| __u32 nlink; |
| __u32 uid; |
| __u32 gid; |
| __u32 rdev; |
| }; |
| |
| struct fuse_kstatfs { |
| __u64 blocks; |
| __u64 bfree; |
| __u64 bavail; |
| __u64 files; |
| __u64 ffree; |
| __u32 bsize; |
| __u32 namelen; |
| __u32 frsize; |
| __u32 padding; |
| __u32 spare[6]; |
| }; |
| |
| /** |
| * Bitmasks for fuse_setattr_in.valid |
| */ |
| #define FATTR_MODE (1 << 0) |
| #define FATTR_UID (1 << 1) |
| #define FATTR_GID (1 << 2) |
| #define FATTR_SIZE (1 << 3) |
| #define FATTR_ATIME (1 << 4) |
| #define FATTR_MTIME (1 << 5) |
| #define FATTR_FH (1 << 6) |
| |
| /** |
| * Flags returned by the OPEN request |
| * |
| * FOPEN_DIRECT_IO: bypass page cache for this open file |
| * FOPEN_KEEP_CACHE: don't invalidate the data cache on open |
| */ |
| #define FOPEN_DIRECT_IO (1 << 0) |
| #define FOPEN_KEEP_CACHE (1 << 1) |
| |
| /** |
| * INIT request/reply flags |
| */ |
| #define FUSE_ASYNC_READ (1 << 0) |
| |
| enum fuse_opcode { |
| FUSE_LOOKUP = 1, |
| FUSE_FORGET = 2, /* no reply */ |
| FUSE_GETATTR = 3, |
| FUSE_SETATTR = 4, |
| FUSE_READLINK = 5, |
| FUSE_SYMLINK = 6, |
| FUSE_MKNOD = 8, |
| FUSE_MKDIR = 9, |
| FUSE_UNLINK = 10, |
| FUSE_RMDIR = 11, |
| FUSE_RENAME = 12, |
| FUSE_LINK = 13, |
| FUSE_OPEN = 14, |
| FUSE_READ = 15, |
| FUSE_WRITE = 16, |
| FUSE_STATFS = 17, |
| FUSE_RELEASE = 18, |
| FUSE_FSYNC = 20, |
| FUSE_SETXATTR = 21, |
| FUSE_GETXATTR = 22, |
| FUSE_LISTXATTR = 23, |
| FUSE_REMOVEXATTR = 24, |
| FUSE_FLUSH = 25, |
| FUSE_INIT = 26, |
| FUSE_OPENDIR = 27, |
| FUSE_READDIR = 28, |
| FUSE_RELEASEDIR = 29, |
| FUSE_FSYNCDIR = 30, |
| FUSE_ACCESS = 34, |
| FUSE_CREATE = 35 |
| }; |
| |
| /* The read buffer is required to be at least 8k, but may be much larger */ |
| #define FUSE_MIN_READ_BUFFER 8192 |
| |
| struct fuse_entry_out { |
| __u64 nodeid; /* Inode ID */ |
| __u64 generation; /* Inode generation: nodeid:gen must |
| be unique for the fs's lifetime */ |
| __u64 entry_valid; /* Cache timeout for the name */ |
| __u64 attr_valid; /* Cache timeout for the attributes */ |
| __u32 entry_valid_nsec; |
| __u32 attr_valid_nsec; |
| struct fuse_attr attr; |
| }; |
| |
| struct fuse_forget_in { |
| __u64 nlookup; |
| }; |
| |
| struct fuse_attr_out { |
| __u64 attr_valid; /* Cache timeout for the attributes */ |
| __u32 attr_valid_nsec; |
| __u32 dummy; |
| struct fuse_attr attr; |
| }; |
| |
| struct fuse_mknod_in { |
| __u32 mode; |
| __u32 rdev; |
| }; |
| |
| struct fuse_mkdir_in { |
| __u32 mode; |
| __u32 padding; |
| }; |
| |
| struct fuse_rename_in { |
| __u64 newdir; |
| }; |
| |
| struct fuse_link_in { |
| __u64 oldnodeid; |
| }; |
| |
| struct fuse_setattr_in { |
| __u32 valid; |
| __u32 padding; |
| __u64 fh; |
| __u64 size; |
| __u64 unused1; |
| __u64 atime; |
| __u64 mtime; |
| __u64 unused2; |
| __u32 atimensec; |
| __u32 mtimensec; |
| __u32 unused3; |
| __u32 mode; |
| __u32 unused4; |
| __u32 uid; |
| __u32 gid; |
| __u32 unused5; |
| }; |
| |
| struct fuse_open_in { |
| __u32 flags; |
| __u32 mode; |
| }; |
| |
| struct fuse_open_out { |
| __u64 fh; |
| __u32 open_flags; |
| __u32 padding; |
| }; |
| |
| struct fuse_release_in { |
| __u64 fh; |
| __u32 flags; |
| __u32 padding; |
| }; |
| |
| struct fuse_flush_in { |
| __u64 fh; |
| __u32 flush_flags; |
| __u32 padding; |
| }; |
| |
| struct fuse_read_in { |
| __u64 fh; |
| __u64 offset; |
| __u32 size; |
| __u32 padding; |
| }; |
| |
| struct fuse_write_in { |
| __u64 fh; |
| __u64 offset; |
| __u32 size; |
| __u32 write_flags; |
| }; |
| |
| struct fuse_write_out { |
| __u32 size; |
| __u32 padding; |
| }; |
| |
| #define FUSE_COMPAT_STATFS_SIZE 48 |
| |
| struct fuse_statfs_out { |
| struct fuse_kstatfs st; |
| }; |
| |
| struct fuse_fsync_in { |
| __u64 fh; |
| __u32 fsync_flags; |
| __u32 padding; |
| }; |
| |
| struct fuse_setxattr_in { |
| __u32 size; |
| __u32 flags; |
| }; |
| |
| struct fuse_getxattr_in { |
| __u32 size; |
| __u32 padding; |
| }; |
| |
| struct fuse_getxattr_out { |
| __u32 size; |
| __u32 padding; |
| }; |
| |
| struct fuse_access_in { |
| __u32 mask; |
| __u32 padding; |
| }; |
| |
| struct fuse_init_in { |
| __u32 major; |
| __u32 minor; |
| __u32 max_readahead; |
| __u32 flags; |
| }; |
| |
| struct fuse_init_out { |
| __u32 major; |
| __u32 minor; |
| __u32 max_readahead; |
| __u32 flags; |
| __u32 unused; |
| __u32 max_write; |
| }; |
| |
| struct fuse_in_header { |
| __u32 len; |
| __u32 opcode; |
| __u64 unique; |
| __u64 nodeid; |
| __u32 uid; |
| __u32 gid; |
| __u32 pid; |
| __u32 padding; |
| }; |
| |
| struct fuse_out_header { |
| __u32 len; |
| __s32 error; |
| __u64 unique; |
| }; |
| |
| struct fuse_dirent { |
| __u64 ino; |
| __u64 off; |
| __u32 namelen; |
| __u32 type; |
| char name[0]; |
| }; |
| |
| #define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name) |
| #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1)) |
| #define FUSE_DIRENT_SIZE(d) \ |
| FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) |