I think that having a copy of this file is a good idea as that way we specify exactly which version of the protocol we implement. I think that Linux and libfuse has its one copy. We should probably add license for that to our licenses directory. The file itself has liberal BSD license so I think we are fine.
On Sun, Feb 9, 2020 at 10:21 Nadav Har'El <[email protected]> wrote: > On Sun, Feb 9, 2020 at 1:22 AM Waldemar Kozaczuk <[email protected]> > 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 <[email protected]> >> --- >> 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 <[email protected]> >> + >> + 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 [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/osv-dev/20200208232200.15009-1-jwkozaczuk%40gmail.com >> . >> > -- You received this message because you are subscribed to the Google Groups "OSv Development" group. 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