On Sun, Feb 9, 2020 at 1:22 AM Waldemar Kozaczuk <jwkozac...@gmail.com> wrote:
> This file is a copy of > https://github.com/libfuse/libfuse/blob/38c9cb43787bf83ca4e9c9af707e82165de99008/include/fuse_kernel.h > and provides the wire-level interface of fuse protocol used to exchange > data between guest and host over virtio-fs device. > I'm not familiar with fuse, so I don't know - does every "fuse"-base tool needs to include its own copy of this header file? I see in Fedora there is a "fuse-devel" package, which has a bunch of header files with different names. Would any one of those do, or they are different things? (please excuse me if I'm asking a stupid question, as I said I am not very familiar with fuse). > Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com> > --- > fs/virtiofs/fuse_kernel.h | 848 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 848 insertions(+) > create mode 100644 fs/virtiofs/fuse_kernel.h > > diff --git a/fs/virtiofs/fuse_kernel.h b/fs/virtiofs/fuse_kernel.h > new file mode 100644 > index 00000000..018a00a2 > --- /dev/null > +++ b/fs/virtiofs/fuse_kernel.h > @@ -0,0 +1,848 @@ > +/* 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 <mik...@szeredi.hu> > + > + This program can be distributed under the terms of the GNU GPL. > + See the file COPYING. > + > + 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 > + */ > + > +#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 > + */ > +#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) > + > +/** > + * 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, > + > + /* CUSE specific operations */ > + CUSE_INIT = 4096 > +}; > + > +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 padding; > + 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 */ > -- > 2.20.1 > > -- > You received this message because you are subscribed to the Google Groups > "OSv Development" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to 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