499 lines
9.5 KiB
C
499 lines
9.5 KiB
C
/* $NetBSD: fuse.h,v 1.2 2010/09/15 01:51:43 manu Exp $ */
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/*-
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* Copyright (c) 2010 Emmanuel Dreyfus. All rights reserved.
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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FUSE_H
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#define _FUSE_H
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#define FUSE_KERNEL_VERSION 7
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#define FUSE_KERNEL_MINOR_VERSION 12
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#define FUSE_ROOT_ID 1
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#define FUSE_UNKNOWN_FH (uint64_t)0
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#ifndef FUSE_BUFSIZE
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#define FUSE_MIN_BUFSIZE 0x21000
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#define FUSE_PREF_BUFSIZE (PAGE_SIZE + 0x1000)
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#define FUSE_BUFSIZE MAX(FUSE_PREF_BUFSIZE /* CONSTCOND */, FUSE_MIN_BUFSIZE)
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#endif /* FUSE_BUFSIZE */
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struct fuse_attr {
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uint64_t ino;
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uint64_t size;
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uint64_t blocks;
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uint64_t atime;
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uint64_t mtime;
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uint64_t ctime;
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uint32_t atimensec;
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uint32_t mtimensec;
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uint32_t ctimensec;
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uint32_t mode;
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uint32_t nlink;
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uint32_t uid;
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uint32_t gid;
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uint32_t rdev;
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uint32_t blksize;
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uint32_t padding;
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};
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struct fuse_kstatfs {
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uint64_t blocks;
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uint64_t bfree;
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uint64_t bavail;
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uint64_t files;
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uint64_t ffree;
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uint32_t bsize;
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uint32_t namelen;
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uint32_t frsize;
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uint32_t padding;
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uint32_t spare[6];
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};
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struct fuse_file_lock {
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uint64_t start;
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uint64_t end;
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uint32_t type;
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uint32_t pid;
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};
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/*
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* Various flags
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*/
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#define FUSE_FATTR_MODE 0x0001
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#define FUSE_FATTR_UID 0x0002
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#define FUSE_FATTR_GID 0x0004
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#define FUSE_FATTR_SIZE 0x0008
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#define FUSE_FATTR_ATIME 0x0010
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#define FUSE_FATTR_MTIME 0x0020
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#define FUSE_FATTR_FH 0x0040
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#define FUSE_FATTR_ATIME_NOW 0x0080
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#define FUSE_FATTR_MTIME_NOW 0x0100
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#define FUSE_FATTR_LOCKOWNER 0x0200
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#define FUSE_FOPEN_DIRECT_IO 0x0001
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#define FUSE_FOPEN_KEEP_CACHE 0x0002
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#define FUSE_FOPEN_NONSEEKABLE 0x0004
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#define FUSE_ASYNC_READ 0x0001
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#define FUSE_POSIX_LOCKS 0x0002
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#define FUSE_FILE_OPS 0x0004
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#define FUSE_ATOMIC_O_TRUNC 0x0008
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#define FUSE_EXPORT_SUPPORT 0x0010
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#define FUSE_BIG_WRITES 0x0020
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#define FUSE_DONT_MASK 0x0040
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#define FUSE_CUSE_UNRESTRICTED_IOCTL 0x0001
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#define FUSE_RELEASE_FLUSH 0x0001
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#define FUSE_GETATTR_FH 0x0001
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#define FUSE_LK_FLOCK 0x0001
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#define FUSE_WRITE_CACHE 0x0001
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#define FUSE_WRITE_LOCKOWNER 0x0002
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#define FUSE_READ_LOCKOWNER 0x0002
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#define FUSE_IOCTL_COMPAT 0x0001
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#define FUSE_IOCTL_UNRESTRICTED 0x0002
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#define FUSE_IOCTL_RETRY 0x0004
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#define FUSE_IOCTL_MAX_IOV 256
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#define FUSE_POLL_SCHEDULE_NOTIFY 0x0001
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enum fuse_opcode {
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FUSE_LOOKUP = 1,
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FUSE_FORGET = 2,
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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_GETLK = 31,
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FUSE_SETLK = 32,
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FUSE_SETLKW = 33,
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FUSE_ACCESS = 34,
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FUSE_CREATE = 35,
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FUSE_INTERRUPT = 36,
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FUSE_BMAP = 37,
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FUSE_DESTROY = 38,
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FUSE_IOCTL = 39,
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FUSE_POLL = 40,
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FUSE_CUSE_INIT = 4096
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};
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enum fuse_notify_code {
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FUSE_NOTIFY_POLL = 1,
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FUSE_NOTIFY_INVAL_INODE = 2,
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FUSE_NOTIFY_INVAL_ENTRY = 3,
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FUSE_NOTIFY_CODE_MAX
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};
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#define FUSE_MIN_READ_BUFFER 8192
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#define FUSE_COMPAT_ENTRY_OUT_SIZE 120
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struct fuse_entry_out {
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uint64_t nodeid;
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uint64_t generation;
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uint64_t entry_valid;
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uint64_t attr_valid;
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uint32_t entry_valid_nsec;
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uint32_t 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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uint64_t nlookup;
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};
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struct fuse_getattr_in {
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uint32_t getattr_flags;
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uint32_t dummy;
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uint64_t fh;
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};
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#define FUSE_COMPAT_ATTR_OUT_SIZE 96
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struct fuse_attr_out {
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uint64_t attr_valid;
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uint32_t attr_valid_nsec;
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uint32_t dummy;
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struct fuse_attr attr;
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};
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#define FUSE_COMPAT_MKNOD_IN_SIZE 8
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struct fuse_mknod_in {
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uint32_t mode;
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uint32_t rdev;
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uint32_t umask;
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uint32_t padding;
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};
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struct fuse_mkdir_in {
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uint32_t mode;
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uint32_t umask;
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};
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struct fuse_rename_in {
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uint64_t newdir;
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};
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struct fuse_link_in {
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uint64_t oldnodeid;
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};
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struct fuse_setattr_in {
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uint32_t valid;
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uint32_t padding;
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uint64_t fh;
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uint64_t size;
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uint64_t lock_owner;
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uint64_t atime;
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uint64_t mtime;
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uint64_t unused2;
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uint32_t atimensec;
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uint32_t mtimensec;
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uint32_t unused3;
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uint32_t mode;
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uint32_t unused4;
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uint32_t uid;
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uint32_t gid;
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uint32_t unused5;
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};
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struct fuse_open_in {
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uint32_t flags;
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uint32_t unused;
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};
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struct fuse_create_in {
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uint32_t flags;
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uint32_t mode;
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uint32_t umask;
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uint32_t padding;
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};
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struct fuse_open_out {
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uint64_t fh;
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uint32_t open_flags; /* FUSE_FOPEN_ */
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uint32_t padding;
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};
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struct fuse_release_in {
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uint64_t fh;
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uint32_t flags;
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uint32_t release_flags;
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uint64_t lock_owner;
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};
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struct fuse_flush_in {
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uint64_t fh;
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uint32_t unused;
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uint32_t padding;
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uint64_t lock_owner;
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};
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struct fuse_read_in {
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uint64_t fh;
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uint64_t offset;
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uint32_t size;
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uint32_t read_flags;
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uint64_t lock_owner;
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uint32_t flags;
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uint32_t padding;
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};
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#define FUSE_COMPAT_WRITE_IN_SIZE 24
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struct fuse_write_in {
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uint64_t fh;
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uint64_t offset;
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uint32_t size;
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uint32_t write_flags;
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uint64_t lock_owner;
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uint32_t flags;
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uint32_t padding;
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};
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struct fuse_write_out {
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uint32_t size;
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uint32_t 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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uint64_t fh;
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uint32_t fsync_flags;
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uint32_t padding;
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};
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struct fuse_setxattr_in {
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uint32_t size;
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uint32_t flags;
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};
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struct fuse_getxattr_in {
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uint32_t size;
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uint32_t padding;
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};
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struct fuse_getxattr_out {
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uint32_t size;
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uint32_t padding;
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};
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struct fuse_lk_in {
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uint64_t fh;
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uint64_t owner;
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struct fuse_file_lock lk;
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uint32_t lk_flags;
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uint32_t padding;
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};
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struct fuse_lk_out {
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struct fuse_file_lock lk;
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};
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struct fuse_access_in {
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uint32_t mask;
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uint32_t padding;
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};
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struct fuse_init_in {
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uint32_t major;
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uint32_t minor;
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uint32_t max_readahead;
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uint32_t flags;
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};
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struct fuse_init_out {
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uint32_t major;
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uint32_t minor;
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uint32_t max_readahead;
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uint32_t flags;
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uint32_t unused;
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uint32_t max_write;
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};
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#define FUSE_CUSE_INIT_INFO_MAX 4096
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struct fuse_cuse_init_in {
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uint32_t major;
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uint32_t minor;
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uint32_t unused;
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uint32_t flags;
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};
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struct fuse_cuse_init_out {
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uint32_t major;
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uint32_t minor;
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uint32_t unused;
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uint32_t flags;
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uint32_t max_read;
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uint32_t max_write;
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uint32_t dev_major; /* chardev major */
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uint32_t dev_minor; /* chardev minor */
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uint32_t spare[10];
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};
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struct fuse_interrupt_in {
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uint64_t unique;
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};
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struct fuse_bmap_in {
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uint64_t block;
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uint32_t blocksize;
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uint32_t padding;
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};
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struct fuse_bmap_out {
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uint64_t block;
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};
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struct fuse_ioctl_in {
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uint64_t fh;
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uint32_t flags;
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uint32_t cmd;
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uint64_t arg;
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uint32_t in_size;
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uint32_t out_size;
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};
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struct fuse_ioctl_out {
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int32_t result;
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uint32_t flags;
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uint32_t in_iovs;
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uint32_t out_iovs;
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};
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struct fuse_poll_in {
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uint64_t fh;
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uint64_t kh;
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uint32_t flags;
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uint32_t padding;
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};
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struct fuse_poll_out {
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uint32_t revents;
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uint32_t padding;
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};
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struct fuse_notify_poll_wakeup_out {
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uint64_t kh;
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};
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#if 0 /* Duplicated in perfuse.h to avoid making fuse.h public */
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/* Send from kernel to proces */
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struct fuse_in_header {
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uint32_t len;
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uint32_t opcode;
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uint64_t unique;
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uint64_t nodeid;
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uint32_t uid;
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uint32_t gid;
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uint32_t pid;
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uint32_t padding;
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};
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struct fuse_in_arg {
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uint32_t size;
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const void *value;
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};
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struct fuse_in {
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struct fuse_in_header h;
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uint32_t argpages:1; /* Req fits in a page? Always 1 */
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uint32_t numargs;
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struct fuse_in_arg args[3]; /* args copied to userspace */
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};
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/* From process to kernel */
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struct fuse_out_header {
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uint32_t len;
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int32_t error;
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uint64_t unique;
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};
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#endif
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struct fuse_dirent {
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uint64_t ino;
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uint64_t off; /* offset of next field from after foh */
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uint32_t namelen;
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uint32_t type;
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char name[0];
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};
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#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
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#define FUSE_DIRENT_ALIGN(x) \
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(((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 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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struct fuse_notify_inval_inode_out {
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uint64_t ino;
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int64_t off;
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int64_t len;
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};
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struct fuse_notify_inval_entry_out {
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uint64_t parent;
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uint32_t namelen;
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uint32_t padding;
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};
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#endif /* _FUSE_H */
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