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Re: [PATCH 02/30] virtiofsd: Pull in kernel's fuse.h
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From: |
Dr. David Alan Gilbert |
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Subject: |
Re: [PATCH 02/30] virtiofsd: Pull in kernel's fuse.h |
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Date: |
Thu, 24 Oct 2019 15:28:17 +0100 |
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User-agent: |
Mutt/1.12.1 (2019-06-15) |
* Michael S. Tsirkin (address@hidden) wrote:
> On Mon, Oct 21, 2019 at 11:58:04AM +0100, Dr. David Alan Gilbert (git) wrote:
> > From: "Dr. David Alan Gilbert" <address@hidden>
> >
> > Pull in fuse.h from the kernel; version
> > 97f9a3c4eee55b0178b518ae7114a6a53372913d
> >
> > Signed-off-by: Dr. David Alan Gilbert <address@hidden>
> > ---
> > contrib/virtiofsd/fuse_kernel.h | 858 ++++++++++++++++++++++++++++++++
> > 1 file changed, 858 insertions(+)
> > create mode 100644 contrib/virtiofsd/fuse_kernel.h
> >
> > diff --git a/contrib/virtiofsd/fuse_kernel.h
> > b/contrib/virtiofsd/fuse_kernel.h
> > new file mode 100644
> > index 0000000000..802b0377a4
> > --- /dev/null
> > +++ b/contrib/virtiofsd/fuse_kernel.h
> > @@ -0,0 +1,858 @@
> > +/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR
> > BSD-2-Clause) */
> > +/*
> > + This file defines the kernel interface of FUSE
> > + Copyright (C) 2001-2008 Miklos Szeredi <address@hidden>
> > +
> > + This program can be distributed under the terms of the GNU GPL.
> > + See the file COPYING.
>
> So I guess we need COPYING then?
We already have a COPYING file which has a copy of the GPLv2 in.
(The kernel's copying file has SPDX for gpl 2 and the note about the
linux syscall exception). Curiously the libfuse repo also has this
comment block, but doesn't have a COPYING file (It has a GPL2.txt and an
LGPL2.txt).
Dave
> > + This -- and only this -- header file may also be distributed under
> > + the terms of the BSD Licence as follows:
> > +
> > + Copyright (C) 2001-2007 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.
> > +*/
> > +
> > +/*
> > + * This file defines the kernel interface of FUSE
> > + *
> > + * Protocol changelog:
> > + *
> > + * 7.9:
> > + * - new fuse_getattr_in input argument of GETATTR
> > + * - add lk_flags in fuse_lk_in
> > + * - add lock_owner field to fuse_setattr_in, fuse_read_in and
> > fuse_write_in
> > + * - add blksize field to fuse_attr
> > + * - add file flags field to fuse_read_in and fuse_write_in
> > + * - Add ATIME_NOW and MTIME_NOW flags to fuse_setattr_in
> > + *
> > + * 7.10
> > + * - add nonseekable open flag
> > + *
> > + * 7.11
> > + * - add IOCTL message
> > + * - add unsolicited notification support
> > + * - add POLL message and NOTIFY_POLL notification
> > + *
> > + * 7.12
> > + * - add umask flag to input argument of create, mknod and mkdir
> > + * - add notification messages for invalidation of inodes and
> > + * directory entries
> > + *
> > + * 7.13
> > + * - make max number of background requests and congestion threshold
> > + * tunables
> > + *
> > + * 7.14
> > + * - add splice support to fuse device
> > + *
> > + * 7.15
> > + * - add store notify
> > + * - add retrieve notify
> > + *
> > + * 7.16
> > + * - add BATCH_FORGET request
> > + * - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct
> > + * fuse_ioctl_iovec' instead of ambiguous 'struct iovec'
> > + * - add FUSE_IOCTL_32BIT flag
> > + *
> > + * 7.17
> > + * - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK
> > + *
> > + * 7.18
> > + * - add FUSE_IOCTL_DIR flag
> > + * - add FUSE_NOTIFY_DELETE
> > + *
> > + * 7.19
> > + * - add FUSE_FALLOCATE
> > + *
> > + * 7.20
> > + * - add FUSE_AUTO_INVAL_DATA
> > + *
> > + * 7.21
> > + * - add FUSE_READDIRPLUS
> > + * - send the requested events in POLL request
> > + *
> > + * 7.22
> > + * - add FUSE_ASYNC_DIO
> > + *
> > + * 7.23
> > + * - add FUSE_WRITEBACK_CACHE
> > + * - add time_gran to fuse_init_out
> > + * - add reserved space to fuse_init_out
> > + * - add FATTR_CTIME
> > + * - add ctime and ctimensec to fuse_setattr_in
> > + * - add FUSE_RENAME2 request
> > + * - add FUSE_NO_OPEN_SUPPORT flag
> > + *
> > + * 7.24
> > + * - add FUSE_LSEEK for SEEK_HOLE and SEEK_DATA support
> > + *
> > + * 7.25
> > + * - add FUSE_PARALLEL_DIROPS
> > + *
> > + * 7.26
> > + * - add FUSE_HANDLE_KILLPRIV
> > + * - add FUSE_POSIX_ACL
> > + *
> > + * 7.27
> > + * - add FUSE_ABORT_ERROR
> > + *
> > + * 7.28
> > + * - add FUSE_COPY_FILE_RANGE
> > + * - add FOPEN_CACHE_DIR
> > + * - add FUSE_MAX_PAGES, add max_pages to init_out
> > + * - add FUSE_CACHE_SYMLINKS
> > + *
> > + * 7.29
> > + * - add FUSE_NO_OPENDIR_SUPPORT flag
> > + *
> > + * 7.30
> > + * - add FUSE_EXPLICIT_INVAL_DATA
> > + * - add FUSE_IOCTL_COMPAT_X32
> > + *
> > + * 7.31
> > + * - add FUSE_WRITE_KILL_PRIV flag
> > + * - add FUSE_SETUPMAPPING and FUSE_REMOVEMAPPING
> > + * - add map_alignment to fuse_init_out, add FUSE_MAP_ALIGNMENT flag
> > + */
> > +
> > +#ifndef _LINUX_FUSE_H
> > +#define _LINUX_FUSE_H
> > +
> > +#ifdef __KERNEL__
> > +#include <linux/types.h>
> > +#else
> > +#include <stdint.h>
> > +#endif
> > +
> > +/*
> > + * Version negotiation:
> > + *
> > + * Both the kernel and userspace send the version they support in the
> > + * INIT request and reply respectively.
> > + *
> > + * If the major versions match then both shall use the smallest
> > + * of the two minor versions for communication.
> > + *
> > + * If the kernel supports a larger major version, then userspace shall
> > + * reply with the major version it supports, ignore the rest of the
> > + * INIT message and expect a new INIT message from the kernel with a
> > + * matching major version.
> > + *
> > + * If the library supports a larger major version, then it shall fall
> > + * back to the major protocol version sent by the kernel for
> > + * communication and reply with that major version (and an arbitrary
> > + * supported minor version).
> > + */
> > +
> > +/** Version number of this interface */
> > +#define FUSE_KERNEL_VERSION 7
> > +
> > +/** Minor version number of this interface */
> > +#define FUSE_KERNEL_MINOR_VERSION 31
> > +
> > +/** The node ID of the root inode */
> > +#define FUSE_ROOT_ID 1
> > +
> > +/* Make sure all structures are padded to 64bit boundary, so 32bit
> > + userspace works under 64bit kernels */
> > +
> > +struct fuse_attr {
> > + uint64_t ino;
> > + uint64_t size;
> > + uint64_t blocks;
> > + uint64_t atime;
> > + uint64_t mtime;
> > + uint64_t ctime;
> > + uint32_t atimensec;
> > + uint32_t mtimensec;
> > + uint32_t ctimensec;
> > + uint32_t mode;
> > + uint32_t nlink;
> > + uint32_t uid;
> > + uint32_t gid;
> > + uint32_t rdev;
> > + uint32_t blksize;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_kstatfs {
> > + uint64_t blocks;
> > + uint64_t bfree;
> > + uint64_t bavail;
> > + uint64_t files;
> > + uint64_t ffree;
> > + uint32_t bsize;
> > + uint32_t namelen;
> > + uint32_t frsize;
> > + uint32_t padding;
> > + uint32_t spare[6];
> > +};
> > +
> > +struct fuse_file_lock {
> > + uint64_t start;
> > + uint64_t end;
> > + uint32_t type;
> > + uint32_t pid; /* tgid */
> > +};
> > +
> > +/**
> > + * 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)
> > +#define FATTR_ATIME_NOW (1 << 7)
> > +#define FATTR_MTIME_NOW (1 << 8)
> > +#define FATTR_LOCKOWNER (1 << 9)
> > +#define FATTR_CTIME (1 << 10)
> > +
> > +/**
> > + * 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
> > + * FOPEN_NONSEEKABLE: the file is not seekable
> > + * FOPEN_CACHE_DIR: allow caching this directory
> > + * FOPEN_STREAM: the file is stream-like (no file position at all)
> > + */
> > +#define FOPEN_DIRECT_IO (1 << 0)
> > +#define FOPEN_KEEP_CACHE (1 << 1)
> > +#define FOPEN_NONSEEKABLE (1 << 2)
> > +#define FOPEN_CACHE_DIR (1 << 3)
> > +#define FOPEN_STREAM (1 << 4)
> > +
> > +/**
> > + * INIT request/reply flags
> > + *
> > + * FUSE_ASYNC_READ: asynchronous read requests
> > + * FUSE_POSIX_LOCKS: remote locking for POSIX file locks
> > + * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet
> > supported)
> > + * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem
> > + * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
> > + * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB
> > + * FUSE_DONT_MASK: don't apply umask to file mode on create operations
> > + * FUSE_SPLICE_WRITE: kernel supports splice write on the device
> > + * FUSE_SPLICE_MOVE: kernel supports splice move on the device
> > + * FUSE_SPLICE_READ: kernel supports splice read on the device
> > + * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
> > + * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
> > + * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
> > + * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
> > + * FUSE_READDIRPLUS_AUTO: adaptive readdirplus
> > + * FUSE_ASYNC_DIO: asynchronous direct I/O submission
> > + * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes
> > + * FUSE_NO_OPEN_SUPPORT: kernel supports zero-message opens
> > + * FUSE_PARALLEL_DIROPS: allow parallel lookups and readdir
> > + * FUSE_HANDLE_KILLPRIV: fs handles killing suid/sgid/cap on
> > write/chown/trunc
> > + * FUSE_POSIX_ACL: filesystem supports posix acls
> > + * FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED
> > + * FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages
> > + * FUSE_CACHE_SYMLINKS: cache READLINK responses
> > + * FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir
> > + * FUSE_EXPLICIT_INVAL_DATA: only invalidate cached pages on explicit
> > request
> > + * FUSE_MAP_ALIGNMENT: map_alignment field is valid
> > + */
> > +#define FUSE_ASYNC_READ (1 << 0)
> > +#define FUSE_POSIX_LOCKS (1 << 1)
> > +#define FUSE_FILE_OPS (1 << 2)
> > +#define FUSE_ATOMIC_O_TRUNC (1 << 3)
> > +#define FUSE_EXPORT_SUPPORT (1 << 4)
> > +#define FUSE_BIG_WRITES (1 << 5)
> > +#define FUSE_DONT_MASK (1 << 6)
> > +#define FUSE_SPLICE_WRITE (1 << 7)
> > +#define FUSE_SPLICE_MOVE (1 << 8)
> > +#define FUSE_SPLICE_READ (1 << 9)
> > +#define FUSE_FLOCK_LOCKS (1 << 10)
> > +#define FUSE_HAS_IOCTL_DIR (1 << 11)
> > +#define FUSE_AUTO_INVAL_DATA (1 << 12)
> > +#define FUSE_DO_READDIRPLUS (1 << 13)
> > +#define FUSE_READDIRPLUS_AUTO (1 << 14)
> > +#define FUSE_ASYNC_DIO (1 << 15)
> > +#define FUSE_WRITEBACK_CACHE (1 << 16)
> > +#define FUSE_NO_OPEN_SUPPORT (1 << 17)
> > +#define FUSE_PARALLEL_DIROPS (1 << 18)
> > +#define FUSE_HANDLE_KILLPRIV (1 << 19)
> > +#define FUSE_POSIX_ACL (1 << 20)
> > +#define FUSE_ABORT_ERROR (1 << 21)
> > +#define FUSE_MAX_PAGES (1 << 22)
> > +#define FUSE_CACHE_SYMLINKS (1 << 23)
> > +#define FUSE_NO_OPENDIR_SUPPORT (1 << 24)
> > +#define FUSE_EXPLICIT_INVAL_DATA (1 << 25)
> > +#define FUSE_MAP_ALIGNMENT (1 << 26)
> > +
> > +/**
> > + * CUSE INIT request/reply flags
> > + *
> > + * CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl
> > + */
> > +#define CUSE_UNRESTRICTED_IOCTL (1 << 0)
> > +
> > +/**
> > + * Release flags
> > + */
> > +#define FUSE_RELEASE_FLUSH (1 << 0)
> > +#define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1)
> > +
> > +/**
> > + * Getattr flags
> > + */
> > +#define FUSE_GETATTR_FH (1 << 0)
> > +
> > +/**
> > + * Lock flags
> > + */
> > +#define FUSE_LK_FLOCK (1 << 0)
> > +
> > +/**
> > + * WRITE flags
> > + *
> > + * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
> > + * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
> > + * FUSE_WRITE_KILL_PRIV: kill suid and sgid bits
> > + */
> > +#define FUSE_WRITE_CACHE (1 << 0)
> > +#define FUSE_WRITE_LOCKOWNER (1 << 1)
> > +#define FUSE_WRITE_KILL_PRIV (1 << 2)
> > +
> > +/**
> > + * Read flags
> > + */
> > +#define FUSE_READ_LOCKOWNER (1 << 1)
> > +
> > +/**
> > + * Ioctl flags
> > + *
> > + * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
> > + * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry
> > allowed
> > + * FUSE_IOCTL_RETRY: retry with new iovecs
> > + * FUSE_IOCTL_32BIT: 32bit ioctl
> > + * FUSE_IOCTL_DIR: is a directory
> > + * FUSE_IOCTL_COMPAT_X32: x32 compat ioctl on 64bit machine (64bit time_t)
> > + *
> > + * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
> > + */
> > +#define FUSE_IOCTL_COMPAT (1 << 0)
> > +#define FUSE_IOCTL_UNRESTRICTED (1 << 1)
> > +#define FUSE_IOCTL_RETRY (1 << 2)
> > +#define FUSE_IOCTL_32BIT (1 << 3)
> > +#define FUSE_IOCTL_DIR (1 << 4)
> > +#define FUSE_IOCTL_COMPAT_X32 (1 << 5)
> > +
> > +#define FUSE_IOCTL_MAX_IOV 256
> > +
> > +/**
> > + * Poll flags
> > + *
> > + * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
> > + */
> > +#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
> > +
> > +/**
> > + * Fsync flags
> > + *
> > + * FUSE_FSYNC_FDATASYNC: Sync data only, not metadata
> > + */
> > +#define FUSE_FSYNC_FDATASYNC (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_GETLK = 31,
> > + FUSE_SETLK = 32,
> > + FUSE_SETLKW = 33,
> > + FUSE_ACCESS = 34,
> > + FUSE_CREATE = 35,
> > + FUSE_INTERRUPT = 36,
> > + FUSE_BMAP = 37,
> > + FUSE_DESTROY = 38,
> > + FUSE_IOCTL = 39,
> > + FUSE_POLL = 40,
> > + FUSE_NOTIFY_REPLY = 41,
> > + FUSE_BATCH_FORGET = 42,
> > + FUSE_FALLOCATE = 43,
> > + FUSE_READDIRPLUS = 44,
> > + FUSE_RENAME2 = 45,
> > + FUSE_LSEEK = 46,
> > + FUSE_COPY_FILE_RANGE = 47,
> > + FUSE_SETUPMAPPING = 48,
> > + FUSE_REMOVEMAPPING = 49,
> > +
> > + /* CUSE specific operations */
> > + CUSE_INIT = 4096,
> > +
> > + /* Reserved opcodes: helpful to detect structure endian-ness */
> > + CUSE_INIT_BSWAP_RESERVED = 1048576, /* CUSE_INIT << 8 */
> > + FUSE_INIT_BSWAP_RESERVED = 436207616, /* FUSE_INIT << 24 */
> > +};
> > +
> > +enum fuse_notify_code {
> > + FUSE_NOTIFY_POLL = 1,
> > + FUSE_NOTIFY_INVAL_INODE = 2,
> > + FUSE_NOTIFY_INVAL_ENTRY = 3,
> > + FUSE_NOTIFY_STORE = 4,
> > + FUSE_NOTIFY_RETRIEVE = 5,
> > + FUSE_NOTIFY_DELETE = 6,
> > + FUSE_NOTIFY_CODE_MAX,
> > +};
> > +
> > +/* The read buffer is required to be at least 8k, but may be much larger */
> > +#define FUSE_MIN_READ_BUFFER 8192
> > +
> > +#define FUSE_COMPAT_ENTRY_OUT_SIZE 120
> > +
> > +struct fuse_entry_out {
> > + uint64_t nodeid; /* Inode ID */
> > + uint64_t generation; /* Inode generation: nodeid:gen must
> > + be unique for the fs's lifetime */
> > + uint64_t entry_valid; /* Cache timeout for the name */
> > + uint64_t attr_valid; /* Cache timeout for the attributes */
> > + uint32_t entry_valid_nsec;
> > + uint32_t attr_valid_nsec;
> > + struct fuse_attr attr;
> > +};
> > +
> > +struct fuse_forget_in {
> > + uint64_t nlookup;
> > +};
> > +
> > +struct fuse_forget_one {
> > + uint64_t nodeid;
> > + uint64_t nlookup;
> > +};
> > +
> > +struct fuse_batch_forget_in {
> > + uint32_t count;
> > + uint32_t dummy;
> > +};
> > +
> > +struct fuse_getattr_in {
> > + uint32_t getattr_flags;
> > + uint32_t dummy;
> > + uint64_t fh;
> > +};
> > +
> > +#define FUSE_COMPAT_ATTR_OUT_SIZE 96
> > +
> > +struct fuse_attr_out {
> > + uint64_t attr_valid; /* Cache timeout for the attributes */
> > + uint32_t attr_valid_nsec;
> > + uint32_t dummy;
> > + struct fuse_attr attr;
> > +};
> > +
> > +#define FUSE_COMPAT_MKNOD_IN_SIZE 8
> > +
> > +struct fuse_mknod_in {
> > + uint32_t mode;
> > + uint32_t rdev;
> > + uint32_t umask;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_mkdir_in {
> > + uint32_t mode;
> > + uint32_t umask;
> > +};
> > +
> > +struct fuse_rename_in {
> > + uint64_t newdir;
> > +};
> > +
> > +struct fuse_rename2_in {
> > + uint64_t newdir;
> > + uint32_t flags;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_link_in {
> > + uint64_t oldnodeid;
> > +};
> > +
> > +struct fuse_setattr_in {
> > + uint32_t valid;
> > + uint32_t padding;
> > + uint64_t fh;
> > + uint64_t size;
> > + uint64_t lock_owner;
> > + uint64_t atime;
> > + uint64_t mtime;
> > + uint64_t ctime;
> > + uint32_t atimensec;
> > + uint32_t mtimensec;
> > + uint32_t ctimensec;
> > + uint32_t mode;
> > + uint32_t unused4;
> > + uint32_t uid;
> > + uint32_t gid;
> > + uint32_t unused5;
> > +};
> > +
> > +struct fuse_open_in {
> > + uint32_t flags;
> > + uint32_t unused;
> > +};
> > +
> > +struct fuse_create_in {
> > + uint32_t flags;
> > + uint32_t mode;
> > + uint32_t umask;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_open_out {
> > + uint64_t fh;
> > + uint32_t open_flags;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_release_in {
> > + uint64_t fh;
> > + uint32_t flags;
> > + uint32_t release_flags;
> > + uint64_t lock_owner;
> > +};
> > +
> > +struct fuse_flush_in {
> > + uint64_t fh;
> > + uint32_t unused;
> > + uint32_t padding;
> > + uint64_t lock_owner;
> > +};
> > +
> > +struct fuse_read_in {
> > + uint64_t fh;
> > + uint64_t offset;
> > + uint32_t size;
> > + uint32_t read_flags;
> > + uint64_t lock_owner;
> > + uint32_t flags;
> > + uint32_t padding;
> > +};
> > +
> > +#define FUSE_COMPAT_WRITE_IN_SIZE 24
> > +
> > +struct fuse_write_in {
> > + uint64_t fh;
> > + uint64_t offset;
> > + uint32_t size;
> > + uint32_t write_flags;
> > + uint64_t lock_owner;
> > + uint32_t flags;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_write_out {
> > + uint32_t size;
> > + uint32_t padding;
> > +};
> > +
> > +#define FUSE_COMPAT_STATFS_SIZE 48
> > +
> > +struct fuse_statfs_out {
> > + struct fuse_kstatfs st;
> > +};
> > +
> > +struct fuse_fsync_in {
> > + uint64_t fh;
> > + uint32_t fsync_flags;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_setxattr_in {
> > + uint32_t size;
> > + uint32_t flags;
> > +};
> > +
> > +struct fuse_getxattr_in {
> > + uint32_t size;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_getxattr_out {
> > + uint32_t size;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_lk_in {
> > + uint64_t fh;
> > + uint64_t owner;
> > + struct fuse_file_lock lk;
> > + uint32_t lk_flags;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_lk_out {
> > + struct fuse_file_lock lk;
> > +};
> > +
> > +struct fuse_access_in {
> > + uint32_t mask;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_init_in {
> > + uint32_t major;
> > + uint32_t minor;
> > + uint32_t max_readahead;
> > + uint32_t flags;
> > +};
> > +
> > +#define FUSE_COMPAT_INIT_OUT_SIZE 8
> > +#define FUSE_COMPAT_22_INIT_OUT_SIZE 24
> > +
> > +struct fuse_init_out {
> > + uint32_t major;
> > + uint32_t minor;
> > + uint32_t max_readahead;
> > + uint32_t flags;
> > + uint16_t max_background;
> > + uint16_t congestion_threshold;
> > + uint32_t max_write;
> > + uint32_t time_gran;
> > + uint16_t max_pages;
> > + uint16_t map_alignment;
> > + uint32_t unused[8];
> > +};
> > +
> > +#define CUSE_INIT_INFO_MAX 4096
> > +
> > +struct cuse_init_in {
> > + uint32_t major;
> > + uint32_t minor;
> > + uint32_t unused;
> > + uint32_t flags;
> > +};
> > +
> > +struct cuse_init_out {
> > + uint32_t major;
> > + uint32_t minor;
> > + uint32_t unused;
> > + uint32_t flags;
> > + uint32_t max_read;
> > + uint32_t max_write;
> > + uint32_t dev_major; /* chardev major */
> > + uint32_t dev_minor; /* chardev minor */
> > + uint32_t spare[10];
> > +};
> > +
> > +struct fuse_interrupt_in {
> > + uint64_t unique;
> > +};
> > +
> > +struct fuse_bmap_in {
> > + uint64_t block;
> > + uint32_t blocksize;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_bmap_out {
> > + uint64_t block;
> > +};
> > +
> > +struct fuse_ioctl_in {
> > + uint64_t fh;
> > + uint32_t flags;
> > + uint32_t cmd;
> > + uint64_t arg;
> > + uint32_t in_size;
> > + uint32_t out_size;
> > +};
> > +
> > +struct fuse_ioctl_iovec {
> > + uint64_t base;
> > + uint64_t len;
> > +};
> > +
> > +struct fuse_ioctl_out {
> > + int32_t result;
> > + uint32_t flags;
> > + uint32_t in_iovs;
> > + uint32_t out_iovs;
> > +};
> > +
> > +struct fuse_poll_in {
> > + uint64_t fh;
> > + uint64_t kh;
> > + uint32_t flags;
> > + uint32_t events;
> > +};
> > +
> > +struct fuse_poll_out {
> > + uint32_t revents;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_notify_poll_wakeup_out {
> > + uint64_t kh;
> > +};
> > +
> > +struct fuse_fallocate_in {
> > + uint64_t fh;
> > + uint64_t offset;
> > + uint64_t length;
> > + uint32_t mode;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_in_header {
> > + uint32_t len;
> > + uint32_t opcode;
> > + uint64_t unique;
> > + uint64_t nodeid;
> > + uint32_t uid;
> > + uint32_t gid;
> > + uint32_t pid;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_out_header {
> > + uint32_t len;
> > + int32_t error;
> > + uint64_t unique;
> > +};
> > +
> > +struct fuse_dirent {
> > + uint64_t ino;
> > + uint64_t off;
> > + uint32_t namelen;
> > + uint32_t type;
> > + char name[];
> > +};
> > +
> > +#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
> > +#define FUSE_DIRENT_ALIGN(x) \
> > + (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))
> > +#define FUSE_DIRENT_SIZE(d) \
> > + FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
> > +
> > +struct fuse_direntplus {
> > + struct fuse_entry_out entry_out;
> > + struct fuse_dirent dirent;
> > +};
> > +
> > +#define FUSE_NAME_OFFSET_DIRENTPLUS \
> > + offsetof(struct fuse_direntplus, dirent.name)
> > +#define FUSE_DIRENTPLUS_SIZE(d) \
> > + FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
> > +
> > +struct fuse_notify_inval_inode_out {
> > + uint64_t ino;
> > + int64_t off;
> > + int64_t len;
> > +};
> > +
> > +struct fuse_notify_inval_entry_out {
> > + uint64_t parent;
> > + uint32_t namelen;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_notify_delete_out {
> > + uint64_t parent;
> > + uint64_t child;
> > + uint32_t namelen;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_notify_store_out {
> > + uint64_t nodeid;
> > + uint64_t offset;
> > + uint32_t size;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_notify_retrieve_out {
> > + uint64_t notify_unique;
> > + uint64_t nodeid;
> > + uint64_t offset;
> > + uint32_t size;
> > + uint32_t padding;
> > +};
> > +
> > +/* Matches the size of fuse_write_in */
> > +struct fuse_notify_retrieve_in {
> > + uint64_t dummy1;
> > + uint64_t offset;
> > + uint32_t size;
> > + uint32_t dummy2;
> > + uint64_t dummy3;
> > + uint64_t dummy4;
> > +};
> > +
> > +/* Device ioctls: */
> > +#define FUSE_DEV_IOC_CLONE _IOR(229, 0, uint32_t)
> > +
> > +struct fuse_lseek_in {
> > + uint64_t fh;
> > + uint64_t offset;
> > + uint32_t whence;
> > + uint32_t padding;
> > +};
> > +
> > +struct fuse_lseek_out {
> > + uint64_t offset;
> > +};
> > +
> > +struct fuse_copy_file_range_in {
> > + uint64_t fh_in;
> > + uint64_t off_in;
> > + uint64_t nodeid_out;
> > + uint64_t fh_out;
> > + uint64_t off_out;
> > + uint64_t len;
> > + uint64_t flags;
> > +};
> > +
> > +#endif /* _LINUX_FUSE_H */
> > --
> > 2.23.0
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- [PATCH 00/30] virtiofs daemon (base), Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 02/30] virtiofsd: Pull in kernel's fuse.h, Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 03/30] virtiofsd: Add auxiliary .c's, Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 04/30] virtiofsd: Add fuse_lowlevel.c, Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 01/30] virtiofsd: Pull in upstream headers, Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 05/30] virtiofsd: Add passthrough_ll, Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 07/30] virtiofsd: remove mountpoint dummy argument, Dr. David Alan Gilbert (git), 2019/10/21
- [PATCH 06/30] virtiofsd: Trim down imported files, Dr. David Alan Gilbert (git), 2019/10/21