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https://git.code.sf.net/p/ntfs-3g/ntfs-3g.git
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ae9aeebbbf
This is backporting code from the full FUSE library in order to support ioctls. The fuse protocol level negociated is now 7.18 instead of 7.8. A fallback protocol to 7.8 is provided for compatibility with older kernels. 32-bit ioctls are not supported by a 64-bit library
439 lines
8.7 KiB
C
439 lines
8.7 KiB
C
/*
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This file defines the kernel interface of FUSE
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Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
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This program can be distributed under the terms of the GNU GPL.
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See the file COPYING.
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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) 2001-2007 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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* 7.12
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* - add umask flag to input argument of open, mknod and mkdir
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*/
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#ifndef linux
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#include <sys/types.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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#else
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#include <asm/types.h>
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#include <linux/major.h>
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#endif
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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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* We introduce ourself as 7.18 (Posix ACLS : 7.12, IOCTL_DIR : 7.18)
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* and we expect features features defined for 7.18, but not implemented
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* here to not be triggered by ntfs-3g.
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*/
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#define FUSE_KERNEL_MINOR_VERSION 18
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/*
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* For binary compatibility with old kernels we accept falling back to 7.8
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*/
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#define FUSE_KERNEL_MAJOR_FALLBACK 7
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#define FUSE_KERNEL_MINOR_FALLBACK 8
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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 MISC_MAJOR
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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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__u64 filling; /* JPA needed for minor >= 12, but meaning unknown */
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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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struct fuse_file_lock {
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__u64 start;
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__u64 end;
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__u32 type;
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__u32 pid; /* tgid */
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};
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/**
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* Bitmasks for fuse_setattr_in.valid
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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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/**
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* INIT request/reply flags
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* FUSE_BIG_WRITES: allow big writes to be issued to the file system
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* FUSE_DONT_MASK: don't apply umask to file mode on create operations
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* FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
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*/
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#define FUSE_ASYNC_READ (1 << 0)
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#define FUSE_POSIX_LOCKS (1 << 1)
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#define FUSE_BIG_WRITES (1 << 5)
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#define FUSE_DONT_MASK (1 << 6)
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#define FUSE_HAS_IOCTL_DIR (1 << 11)
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/**
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* Release flags
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*/
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#define FUSE_RELEASE_FLUSH (1 << 0)
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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_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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};
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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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#define FUSE_COMPAT_ENTRY_OUT_SIZE 120 /* JPA */
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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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#define FUSE_COMPAT_FUSE_ATTR_OUT_SIZE 96 /* JPA */
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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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#define FUSE_COMPAT_MKNOD_IN_SIZE 8
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struct fuse_mknod_in {
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__u32 mode;
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__u32 rdev;
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__u32 umask;
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__u32 padding;
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};
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struct fuse_mkdir_in {
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__u32 mode;
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__u32 umask;
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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; /* unused for protocol < 7.12 */
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};
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struct fuse_create_in {
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__u32 flags;
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__u32 mode;
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__u32 umask;
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__u32 padding;
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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 release_flags;
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__u64 lock_owner;
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};
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struct fuse_flush_in {
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__u64 fh;
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__u32 unused;
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__u32 padding;
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__u64 lock_owner;
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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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#define FUSE_COMPAT_WRITE_IN_SIZE 24 /* JPA */
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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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__u64 lock_owner; /* JPA */
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__u32 flags; /* JPA */
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__u32 padding; /* JPA */
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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_lk_in {
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__u64 fh;
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__u64 owner;
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struct fuse_file_lock lk;
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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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__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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__u32 max_readahead;
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__u32 flags;
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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 max_readahead;
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__u32 flags;
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__u32 unused;
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__u32 max_write;
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};
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struct fuse_interrupt_in {
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__u64 unique;
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};
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struct fuse_bmap_in {
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__u64 block;
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__u32 blocksize;
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__u32 padding;
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};
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struct fuse_bmap_out {
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__u64 block;
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};
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struct fuse_ioctl_in {
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__u64 fh;
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__u32 flags;
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__u32 cmd;
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__u64 arg;
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__u32 in_size;
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__u32 out_size;
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};
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struct fuse_ioctl_iovec {
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__u64 base;
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__u64 len;
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};
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struct fuse_ioctl_out {
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__s32 result;
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__u32 flags;
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__u32 in_iovs;
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__u32 out_iovs;
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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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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[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) (((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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