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author | orivej <orivej@yandex-team.ru> | 2022-02-10 16:45:01 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:01 +0300 |
commit | 2d37894b1b037cf24231090eda8589bbb44fb6fc (patch) | |
tree | be835aa92c6248212e705f25388ebafcf84bc7a1 /contrib/libs/linux-headers/linux/fuse.h | |
parent | 718c552901d703c502ccbefdfc3c9028d608b947 (diff) | |
download | ydb-2d37894b1b037cf24231090eda8589bbb44fb6fc.tar.gz |
Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/linux-headers/linux/fuse.h')
-rw-r--r-- | contrib/libs/linux-headers/linux/fuse.h | 1782 |
1 files changed, 891 insertions, 891 deletions
diff --git a/contrib/libs/linux-headers/linux/fuse.h b/contrib/libs/linux-headers/linux/fuse.h index 0853d22609..f4df0a40f6 100644 --- a/contrib/libs/linux-headers/linux/fuse.h +++ b/contrib/libs/linux-headers/linux/fuse.h @@ -1,891 +1,891 @@ -/* 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 <miklos@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: - * - * 7.1: - * - add the following messages: - * FUSE_SETATTR, FUSE_SYMLINK, FUSE_MKNOD, FUSE_MKDIR, FUSE_UNLINK, - * FUSE_RMDIR, FUSE_RENAME, FUSE_LINK, FUSE_OPEN, FUSE_READ, FUSE_WRITE, - * FUSE_RELEASE, FUSE_FSYNC, FUSE_FLUSH, FUSE_SETXATTR, FUSE_GETXATTR, - * FUSE_LISTXATTR, FUSE_REMOVEXATTR, FUSE_OPENDIR, FUSE_READDIR, - * FUSE_RELEASEDIR - * - add padding to messages to accommodate 32-bit servers on 64-bit kernels - * - * 7.2: - * - add FOPEN_DIRECT_IO and FOPEN_KEEP_CACHE flags - * - add FUSE_FSYNCDIR message - * - * 7.3: - * - add FUSE_ACCESS message - * - add FUSE_CREATE message - * - add filehandle to fuse_setattr_in - * - * 7.4: - * - add frsize to fuse_kstatfs - * - clean up request size limit checking - * - * 7.5: - * - add flags and max_write to fuse_init_out - * - * 7.6: - * - add max_readahead to fuse_init_in and fuse_init_out - * - * 7.7: - * - add FUSE_INTERRUPT message - * - add POSIX file lock support - * - * 7.8: - * - add lock_owner and flags fields to fuse_release_in - * - add FUSE_BMAP message - * - add FUSE_DESTROY message - * - * 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 - -#include <stdint.h> - -/* - * 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 */ +/* 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 <miklos@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: + * + * 7.1: + * - add the following messages: + * FUSE_SETATTR, FUSE_SYMLINK, FUSE_MKNOD, FUSE_MKDIR, FUSE_UNLINK, + * FUSE_RMDIR, FUSE_RENAME, FUSE_LINK, FUSE_OPEN, FUSE_READ, FUSE_WRITE, + * FUSE_RELEASE, FUSE_FSYNC, FUSE_FLUSH, FUSE_SETXATTR, FUSE_GETXATTR, + * FUSE_LISTXATTR, FUSE_REMOVEXATTR, FUSE_OPENDIR, FUSE_READDIR, + * FUSE_RELEASEDIR + * - add padding to messages to accommodate 32-bit servers on 64-bit kernels + * + * 7.2: + * - add FOPEN_DIRECT_IO and FOPEN_KEEP_CACHE flags + * - add FUSE_FSYNCDIR message + * + * 7.3: + * - add FUSE_ACCESS message + * - add FUSE_CREATE message + * - add filehandle to fuse_setattr_in + * + * 7.4: + * - add frsize to fuse_kstatfs + * - clean up request size limit checking + * + * 7.5: + * - add flags and max_write to fuse_init_out + * + * 7.6: + * - add max_readahead to fuse_init_in and fuse_init_out + * + * 7.7: + * - add FUSE_INTERRUPT message + * - add POSIX file lock support + * + * 7.8: + * - add lock_owner and flags fields to fuse_release_in + * - add FUSE_BMAP message + * - add FUSE_DESTROY message + * + * 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 + +#include <stdint.h> + +/* + * 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 */ |