9pfuse
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312
src/cmd/9pfuse/fuse_kernel.h
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312
src/cmd/9pfuse/fuse_kernel.h
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/* This file defines the kernel interface of FUSE */
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/*
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This -- and only this -- header file may also be distributed under
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the terms of the BSD Licence as follows:
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Copyright (C) 2001-2006 Miklos Szeredi. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* RSC changed these lines */
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#include <inttypes.h>
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#define __u64 uint64_t
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#define __u32 uint32_t
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#define __s32 int32_t
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/** Version number of this interface */
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#define FUSE_KERNEL_VERSION 7
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/** Minor version number of this interface */
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#define FUSE_KERNEL_MINOR_VERSION 5
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/** The node ID of the root inode */
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#define FUSE_ROOT_ID 1
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/** The major number of the fuse character device */
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#define FUSE_MAJOR 10
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/** The minor number of the fuse character device */
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#define FUSE_MINOR 229
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/* Make sure all structures are padded to 64bit boundary, so 32bit
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userspace works under 64bit kernels */
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struct fuse_attr {
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__u64 ino;
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__u64 size;
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__u64 blocks;
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__u64 atime;
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__u64 mtime;
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__u64 ctime;
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__u32 atimensec;
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__u32 mtimensec;
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__u32 ctimensec;
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__u32 mode;
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__u32 nlink;
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__u32 uid;
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__u32 gid;
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__u32 rdev;
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};
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struct fuse_kstatfs {
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__u64 blocks;
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__u64 bfree;
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__u64 bavail;
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__u64 files;
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__u64 ffree;
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__u32 bsize;
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__u32 namelen;
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__u32 frsize;
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__u32 padding;
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__u32 spare[6];
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};
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#define FATTR_MODE (1 << 0)
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#define FATTR_UID (1 << 1)
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#define FATTR_GID (1 << 2)
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#define FATTR_SIZE (1 << 3)
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#define FATTR_ATIME (1 << 4)
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#define FATTR_MTIME (1 << 5)
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#define FATTR_FH (1 << 6)
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/**
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* Flags returned by the OPEN request
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*
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* FOPEN_DIRECT_IO: bypass page cache for this open file
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* FOPEN_KEEP_CACHE: don't invalidate the data cache on open
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*/
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#define FOPEN_DIRECT_IO (1 << 0)
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#define FOPEN_KEEP_CACHE (1 << 1)
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enum fuse_opcode {
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FUSE_LOOKUP = 1,
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FUSE_FORGET = 2, /* no reply */
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FUSE_GETATTR = 3,
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FUSE_SETATTR = 4,
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FUSE_READLINK = 5,
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FUSE_SYMLINK = 6,
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FUSE_MKNOD = 8,
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FUSE_MKDIR = 9,
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FUSE_UNLINK = 10,
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FUSE_RMDIR = 11,
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FUSE_RENAME = 12,
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FUSE_LINK = 13,
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FUSE_OPEN = 14,
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FUSE_READ = 15,
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FUSE_WRITE = 16,
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FUSE_STATFS = 17,
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FUSE_RELEASE = 18,
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FUSE_FSYNC = 20,
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FUSE_SETXATTR = 21,
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FUSE_GETXATTR = 22,
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FUSE_LISTXATTR = 23,
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FUSE_REMOVEXATTR = 24,
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FUSE_FLUSH = 25,
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FUSE_INIT = 26,
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FUSE_OPENDIR = 27,
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FUSE_READDIR = 28,
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FUSE_RELEASEDIR = 29,
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FUSE_FSYNCDIR = 30,
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FUSE_ACCESS = 34,
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FUSE_CREATE = 35
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};
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/* The read buffer is required to be at least 8k, but may be much larger */
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#define FUSE_MIN_READ_BUFFER 8192
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struct fuse_entry_out {
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__u64 nodeid; /* Inode ID */
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__u64 generation; /* Inode generation: nodeid:gen must
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be unique for the fs's lifetime */
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__u64 entry_valid; /* Cache timeout for the name */
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__u64 attr_valid; /* Cache timeout for the attributes */
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__u32 entry_valid_nsec;
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__u32 attr_valid_nsec;
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struct fuse_attr attr;
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};
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struct fuse_forget_in {
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__u64 nlookup;
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};
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struct fuse_attr_out {
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__u64 attr_valid; /* Cache timeout for the attributes */
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__u32 attr_valid_nsec;
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__u32 dummy;
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struct fuse_attr attr;
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};
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struct fuse_mknod_in {
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__u32 mode;
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__u32 rdev;
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};
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struct fuse_mkdir_in {
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__u32 mode;
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__u32 padding;
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};
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struct fuse_rename_in {
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__u64 newdir;
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};
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struct fuse_link_in {
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__u64 oldnodeid;
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};
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struct fuse_setattr_in {
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__u32 valid;
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__u32 padding;
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__u64 fh;
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__u64 size;
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__u64 unused1;
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__u64 atime;
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__u64 mtime;
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__u64 unused2;
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__u32 atimensec;
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__u32 mtimensec;
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__u32 unused3;
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__u32 mode;
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__u32 unused4;
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__u32 uid;
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__u32 gid;
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__u32 unused5;
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};
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struct fuse_open_in {
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__u32 flags;
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__u32 mode;
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};
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struct fuse_open_out {
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__u64 fh;
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__u32 open_flags;
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__u32 padding;
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};
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struct fuse_release_in {
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__u64 fh;
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__u32 flags;
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__u32 padding;
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};
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struct fuse_flush_in {
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__u64 fh;
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__u32 flush_flags;
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__u32 padding;
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};
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struct fuse_read_in {
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__u64 fh;
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__u64 offset;
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__u32 size;
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__u32 padding;
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};
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struct fuse_write_in {
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__u64 fh;
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__u64 offset;
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__u32 size;
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__u32 write_flags;
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};
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struct fuse_write_out {
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__u32 size;
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__u32 padding;
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};
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#define FUSE_COMPAT_STATFS_SIZE 48
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struct fuse_statfs_out {
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struct fuse_kstatfs st;
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};
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struct fuse_fsync_in {
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__u64 fh;
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__u32 fsync_flags;
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__u32 padding;
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};
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struct fuse_setxattr_in {
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__u32 size;
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__u32 flags;
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};
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struct fuse_getxattr_in {
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__u32 size;
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__u32 padding;
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};
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struct fuse_getxattr_out {
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__u32 size;
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__u32 padding;
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};
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struct fuse_access_in {
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__u32 mask;
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__u32 padding;
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};
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struct fuse_init_in {
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__u32 major;
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__u32 minor;
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};
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struct fuse_init_out {
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__u32 major;
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__u32 minor;
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__u32 unused[3];
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__u32 max_write;
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};
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struct fuse_in_header {
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__u32 len;
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__u32 opcode;
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__u64 unique;
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__u64 nodeid;
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__u32 uid;
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__u32 gid;
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__u32 pid;
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__u32 padding;
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};
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struct fuse_out_header {
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__u32 len;
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__s32 error;
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__u64 unique;
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};
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/* RSC changed name[0] to name[1] for old C compilers */
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struct fuse_dirent {
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__u64 ino;
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__u64 off;
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__u32 namelen;
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__u32 type;
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char name[1];
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};
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#define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name)
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#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
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#define FUSE_DIRENT_SIZE(d) \
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FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
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