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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/fuse.h

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2     This file defines the kernel interface of FUSE
  3     Copyright (C) 2001-2008  Miklos Szeredi <miklos@szeredi.hu>
  4 
  5     This program can be distributed under the terms of the GNU GPL.
  6     See the file COPYING.
  7 
  8     This -- and only this -- header file may also be distributed under
  9     the terms of the BSD Licence as follows:
 10 
 11     Copyright (C) 2001-2007 Miklos Szeredi. All rights reserved.
 12 
 13     Redistribution and use in source and binary forms, with or without
 14     modification, are permitted provided that the following conditions
 15     are met:
 16     1. Redistributions of source code must retain the above copyright
 17        notice, this list of conditions and the following disclaimer.
 18     2. Redistributions in binary form must reproduce the above copyright
 19        notice, this list of conditions and the following disclaimer in the
 20        documentation and/or other materials provided with the distribution.
 21 
 22     THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 23     ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 24     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 25     ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 26     FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 27     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 28     OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 29     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 30     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 31     OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 32     SUCH DAMAGE.
 33 */
 34 
 35 /*
 36  * This file defines the kernel interface of FUSE
 37  *
 38  * Protocol changelog:
 39  *
 40  * 7.9:
 41  *  - new fuse_getattr_in input argument of GETATTR
 42  *  - add lk_flags in fuse_lk_in
 43  *  - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
 44  *  - add blksize field to fuse_attr
 45  *  - add file flags field to fuse_read_in and fuse_write_in
 46  *
 47  * 7.10
 48  *  - add nonseekable open flag
 49  *
 50  * 7.11
 51  *  - add IOCTL message
 52  *  - add unsolicited notification support
 53  *  - add POLL message and NOTIFY_POLL notification
 54  *
 55  * 7.12
 56  *  - add umask flag to input argument of open, mknod and mkdir
 57  *  - add notification messages for invalidation of inodes and
 58  *    directory entries
 59  *
 60  * 7.13
 61  *  - make max number of background requests and congestion threshold
 62  *    tunables
 63  *
 64  * 7.14
 65  *  - add splice support to fuse device
 66  *
 67  * 7.15
 68  *  - add store notify
 69  *  - add retrieve notify
 70  *
 71  * 7.16
 72  *  - add BATCH_FORGET request
 73  *  - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct
 74  *    fuse_ioctl_iovec' instead of ambiguous 'struct iovec'
 75  *  - add FUSE_IOCTL_32BIT flag
 76  *
 77  * 7.17
 78  *  - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK
 79  *
 80  * 7.18
 81  *  - add FUSE_IOCTL_DIR flag
 82  *  - add FUSE_NOTIFY_DELETE
 83  *
 84  * 7.19
 85  *  - add FUSE_FALLOCATE
 86  *
 87  * 7.20
 88  *  - add FUSE_AUTO_INVAL_DATA
 89  *
 90  * 7.21
 91  *  - add FUSE_READDIRPLUS
 92  *  - send the requested events in POLL request
 93  *
 94  * 7.22
 95  *  - add FUSE_ASYNC_DIO
 96  *
 97  * 7.23
 98  *  - add FUSE_WRITEBACK_CACHE
 99  *  - add time_gran to fuse_init_out
100  *  - add reserved space to fuse_init_out
101  *  - add FATTR_CTIME
102  *  - add ctime and ctimensec to fuse_setattr_in
103  *  - add FUSE_RENAME2 request
104  *  - add FUSE_NO_OPEN_SUPPORT flag
105  *
106  *  7.24
107  *  - add FUSE_LSEEK for SEEK_HOLE and SEEK_DATA support
108  *
109  *  7.25
110  *  - add FUSE_PARALLEL_DIROPS
111  *
112  *  7.26
113  *  - add FUSE_HANDLE_KILLPRIV
114  *  - add FUSE_POSIX_ACL
115  */
116 
117 #ifndef _LINUX_FUSE_H
118 #define _LINUX_FUSE_H
119 
120 #ifdef __KERNEL__
121 #include <linux/types.h>
122 #else
123 #include <stdint.h>
124 #endif
125 
126 /*
127  * Version negotiation:
128  *
129  * Both the kernel and userspace send the version they support in the
130  * INIT request and reply respectively.
131  *
132  * If the major versions match then both shall use the smallest
133  * of the two minor versions for communication.
134  *
135  * If the kernel supports a larger major version, then userspace shall
136  * reply with the major version it supports, ignore the rest of the
137  * INIT message and expect a new INIT message from the kernel with a
138  * matching major version.
139  *
140  * If the library supports a larger major version, then it shall fall
141  * back to the major protocol version sent by the kernel for
142  * communication and reply with that major version (and an arbitrary
143  * supported minor version).
144  */
145 
146 /** Version number of this interface */
147 #define FUSE_KERNEL_VERSION 7
148 
149 /** Minor version number of this interface */
150 #define FUSE_KERNEL_MINOR_VERSION 26
151 
152 /** The node ID of the root inode */
153 #define FUSE_ROOT_ID 1
154 
155 /* Make sure all structures are padded to 64bit boundary, so 32bit
156    userspace works under 64bit kernels */
157 
158 struct fuse_attr {
159         uint64_t        ino;
160         uint64_t        size;
161         uint64_t        blocks;
162         uint64_t        atime;
163         uint64_t        mtime;
164         uint64_t        ctime;
165         uint32_t        atimensec;
166         uint32_t        mtimensec;
167         uint32_t        ctimensec;
168         uint32_t        mode;
169         uint32_t        nlink;
170         uint32_t        uid;
171         uint32_t        gid;
172         uint32_t        rdev;
173         uint32_t        blksize;
174         uint32_t        padding;
175 };
176 
177 struct fuse_kstatfs {
178         uint64_t        blocks;
179         uint64_t        bfree;
180         uint64_t        bavail;
181         uint64_t        files;
182         uint64_t        ffree;
183         uint32_t        bsize;
184         uint32_t        namelen;
185         uint32_t        frsize;
186         uint32_t        padding;
187         uint32_t        spare[6];
188 };
189 
190 struct fuse_file_lock {
191         uint64_t        start;
192         uint64_t        end;
193         uint32_t        type;
194         uint32_t        pid; /* tgid */
195 };
196 
197 /**
198  * Bitmasks for fuse_setattr_in.valid
199  */
200 #define FATTR_MODE      (1 << 0)
201 #define FATTR_UID       (1 << 1)
202 #define FATTR_GID       (1 << 2)
203 #define FATTR_SIZE      (1 << 3)
204 #define FATTR_ATIME     (1 << 4)
205 #define FATTR_MTIME     (1 << 5)
206 #define FATTR_FH        (1 << 6)
207 #define FATTR_ATIME_NOW (1 << 7)
208 #define FATTR_MTIME_NOW (1 << 8)
209 #define FATTR_LOCKOWNER (1 << 9)
210 #define FATTR_CTIME     (1 << 10)
211 
212 /**
213  * Flags returned by the OPEN request
214  *
215  * FOPEN_DIRECT_IO: bypass page cache for this open file
216  * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
217  * FOPEN_NONSEEKABLE: the file is not seekable
218  */
219 #define FOPEN_DIRECT_IO         (1 << 0)
220 #define FOPEN_KEEP_CACHE        (1 << 1)
221 #define FOPEN_NONSEEKABLE       (1 << 2)
222 
223 /**
224  * INIT request/reply flags
225  *
226  * FUSE_ASYNC_READ: asynchronous read requests
227  * FUSE_POSIX_LOCKS: remote locking for POSIX file locks
228  * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported)
229  * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem
230  * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
231  * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB
232  * FUSE_DONT_MASK: don't apply umask to file mode on create operations
233  * FUSE_SPLICE_WRITE: kernel supports splice write on the device
234  * FUSE_SPLICE_MOVE: kernel supports splice move on the device
235  * FUSE_SPLICE_READ: kernel supports splice read on the device
236  * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
237  * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
238  * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
239  * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
240  * FUSE_READDIRPLUS_AUTO: adaptive readdirplus
241  * FUSE_ASYNC_DIO: asynchronous direct I/O submission
242  * FUSE_WRITEBACK_CACHE: use writeback cache for buffered writes
243  * FUSE_NO_OPEN_SUPPORT: kernel supports zero-message opens
244  * FUSE_PARALLEL_DIROPS: allow parallel lookups and readdir
245  * FUSE_HANDLE_KILLPRIV: fs handles killing suid/sgid/cap on write/chown/trunc
246  * FUSE_POSIX_ACL: filesystem supports posix acls
247  */
248 #define FUSE_ASYNC_READ         (1 << 0)
249 #define FUSE_POSIX_LOCKS        (1 << 1)
250 #define FUSE_FILE_OPS           (1 << 2)
251 #define FUSE_ATOMIC_O_TRUNC     (1 << 3)
252 #define FUSE_EXPORT_SUPPORT     (1 << 4)
253 #define FUSE_BIG_WRITES         (1 << 5)
254 #define FUSE_DONT_MASK          (1 << 6)
255 #define FUSE_SPLICE_WRITE       (1 << 7)
256 #define FUSE_SPLICE_MOVE        (1 << 8)
257 #define FUSE_SPLICE_READ        (1 << 9)
258 #define FUSE_FLOCK_LOCKS        (1 << 10)
259 #define FUSE_HAS_IOCTL_DIR      (1 << 11)
260 #define FUSE_AUTO_INVAL_DATA    (1 << 12)
261 #define FUSE_DO_READDIRPLUS     (1 << 13)
262 #define FUSE_READDIRPLUS_AUTO   (1 << 14)
263 #define FUSE_ASYNC_DIO          (1 << 15)
264 #define FUSE_WRITEBACK_CACHE    (1 << 16)
265 #define FUSE_NO_OPEN_SUPPORT    (1 << 17)
266 #define FUSE_PARALLEL_DIROPS    (1 << 18)
267 #define FUSE_HANDLE_KILLPRIV    (1 << 19)
268 #define FUSE_POSIX_ACL          (1 << 20)
269 
270 /**
271  * CUSE INIT request/reply flags
272  *
273  * CUSE_UNRESTRICTED_IOCTL:  use unrestricted ioctl
274  */
275 #define CUSE_UNRESTRICTED_IOCTL (1 << 0)
276 
277 /**
278  * Release flags
279  */
280 #define FUSE_RELEASE_FLUSH      (1 << 0)
281 #define FUSE_RELEASE_FLOCK_UNLOCK       (1 << 1)
282 
283 /**
284  * Getattr flags
285  */
286 #define FUSE_GETATTR_FH         (1 << 0)
287 
288 /**
289  * Lock flags
290  */
291 #define FUSE_LK_FLOCK           (1 << 0)
292 
293 /**
294  * WRITE flags
295  *
296  * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
297  * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
298  */
299 #define FUSE_WRITE_CACHE        (1 << 0)
300 #define FUSE_WRITE_LOCKOWNER    (1 << 1)
301 
302 /**
303  * Read flags
304  */
305 #define FUSE_READ_LOCKOWNER     (1 << 1)
306 
307 /**
308  * Ioctl flags
309  *
310  * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
311  * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
312  * FUSE_IOCTL_RETRY: retry with new iovecs
313  * FUSE_IOCTL_32BIT: 32bit ioctl
314  * FUSE_IOCTL_DIR: is a directory
315  *
316  * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
317  */
318 #define FUSE_IOCTL_COMPAT       (1 << 0)
319 #define FUSE_IOCTL_UNRESTRICTED (1 << 1)
320 #define FUSE_IOCTL_RETRY        (1 << 2)
321 #define FUSE_IOCTL_32BIT        (1 << 3)
322 #define FUSE_IOCTL_DIR          (1 << 4)
323 
324 #define FUSE_IOCTL_MAX_IOV      256
325 
326 /**
327  * Poll flags
328  *
329  * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
330  */
331 #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
332 
333 enum fuse_opcode {
334         FUSE_LOOKUP        = 1,
335         FUSE_FORGET        = 2,  /* no reply */
336         FUSE_GETATTR       = 3,
337         FUSE_SETATTR       = 4,
338         FUSE_READLINK      = 5,
339         FUSE_SYMLINK       = 6,
340         FUSE_MKNOD         = 8,
341         FUSE_MKDIR         = 9,
342         FUSE_UNLINK        = 10,
343         FUSE_RMDIR         = 11,
344         FUSE_RENAME        = 12,
345         FUSE_LINK          = 13,
346         FUSE_OPEN          = 14,
347         FUSE_READ          = 15,
348         FUSE_WRITE         = 16,
349         FUSE_STATFS        = 17,
350         FUSE_RELEASE       = 18,
351         FUSE_FSYNC         = 20,
352         FUSE_SETXATTR      = 21,
353         FUSE_GETXATTR      = 22,
354         FUSE_LISTXATTR     = 23,
355         FUSE_REMOVEXATTR   = 24,
356         FUSE_FLUSH         = 25,
357         FUSE_INIT          = 26,
358         FUSE_OPENDIR       = 27,
359         FUSE_READDIR       = 28,
360         FUSE_RELEASEDIR    = 29,
361         FUSE_FSYNCDIR      = 30,
362         FUSE_GETLK         = 31,
363         FUSE_SETLK         = 32,
364         FUSE_SETLKW        = 33,
365         FUSE_ACCESS        = 34,
366         FUSE_CREATE        = 35,
367         FUSE_INTERRUPT     = 36,
368         FUSE_BMAP          = 37,
369         FUSE_DESTROY       = 38,
370         FUSE_IOCTL         = 39,
371         FUSE_POLL          = 40,
372         FUSE_NOTIFY_REPLY  = 41,
373         FUSE_BATCH_FORGET  = 42,
374         FUSE_FALLOCATE     = 43,
375         FUSE_READDIRPLUS   = 44,
376         FUSE_RENAME2       = 45,
377         FUSE_LSEEK         = 46,
378 
379         /* CUSE specific operations */
380         CUSE_INIT          = 4096,
381 };
382 
383 enum fuse_notify_code {
384         FUSE_NOTIFY_POLL   = 1,
385         FUSE_NOTIFY_INVAL_INODE = 2,
386         FUSE_NOTIFY_INVAL_ENTRY = 3,
387         FUSE_NOTIFY_STORE = 4,
388         FUSE_NOTIFY_RETRIEVE = 5,
389         FUSE_NOTIFY_DELETE = 6,
390         FUSE_NOTIFY_CODE_MAX,
391 };
392 
393 /* The read buffer is required to be at least 8k, but may be much larger */
394 #define FUSE_MIN_READ_BUFFER 8192
395 
396 #define FUSE_COMPAT_ENTRY_OUT_SIZE 120
397 
398 struct fuse_entry_out {
399         uint64_t        nodeid;         /* Inode ID */
400         uint64_t        generation;     /* Inode generation: nodeid:gen must
401                                            be unique for the fs's lifetime */
402         uint64_t        entry_valid;    /* Cache timeout for the name */
403         uint64_t        attr_valid;     /* Cache timeout for the attributes */
404         uint32_t        entry_valid_nsec;
405         uint32_t        attr_valid_nsec;
406         struct fuse_attr attr;
407 };
408 
409 struct fuse_forget_in {
410         uint64_t        nlookup;
411 };
412 
413 struct fuse_forget_one {
414         uint64_t        nodeid;
415         uint64_t        nlookup;
416 };
417 
418 struct fuse_batch_forget_in {
419         uint32_t        count;
420         uint32_t        dummy;
421 };
422 
423 struct fuse_getattr_in {
424         uint32_t        getattr_flags;
425         uint32_t        dummy;
426         uint64_t        fh;
427 };
428 
429 #define FUSE_COMPAT_ATTR_OUT_SIZE 96
430 
431 struct fuse_attr_out {
432         uint64_t        attr_valid;     /* Cache timeout for the attributes */
433         uint32_t        attr_valid_nsec;
434         uint32_t        dummy;
435         struct fuse_attr attr;
436 };
437 
438 #define FUSE_COMPAT_MKNOD_IN_SIZE 8
439 
440 struct fuse_mknod_in {
441         uint32_t        mode;
442         uint32_t        rdev;
443         uint32_t        umask;
444         uint32_t        padding;
445 };
446 
447 struct fuse_mkdir_in {
448         uint32_t        mode;
449         uint32_t        umask;
450 };
451 
452 struct fuse_rename_in {
453         uint64_t        newdir;
454 };
455 
456 struct fuse_rename2_in {
457         uint64_t        newdir;
458         uint32_t        flags;
459         uint32_t        padding;
460 };
461 
462 struct fuse_link_in {
463         uint64_t        oldnodeid;
464 };
465 
466 struct fuse_setattr_in {
467         uint32_t        valid;
468         uint32_t        padding;
469         uint64_t        fh;
470         uint64_t        size;
471         uint64_t        lock_owner;
472         uint64_t        atime;
473         uint64_t        mtime;
474         uint64_t        ctime;
475         uint32_t        atimensec;
476         uint32_t        mtimensec;
477         uint32_t        ctimensec;
478         uint32_t        mode;
479         uint32_t        unused4;
480         uint32_t        uid;
481         uint32_t        gid;
482         uint32_t        unused5;
483 };
484 
485 struct fuse_open_in {
486         uint32_t        flags;
487         uint32_t        unused;
488 };
489 
490 struct fuse_create_in {
491         uint32_t        flags;
492         uint32_t        mode;
493         uint32_t        umask;
494         uint32_t        padding;
495 };
496 
497 struct fuse_open_out {
498         uint64_t        fh;
499         uint32_t        open_flags;
500         uint32_t        padding;
501 };
502 
503 struct fuse_release_in {
504         uint64_t        fh;
505         uint32_t        flags;
506         uint32_t        release_flags;
507         uint64_t        lock_owner;
508 };
509 
510 struct fuse_flush_in {
511         uint64_t        fh;
512         uint32_t        unused;
513         uint32_t        padding;
514         uint64_t        lock_owner;
515 };
516 
517 struct fuse_read_in {
518         uint64_t        fh;
519         uint64_t        offset;
520         uint32_t        size;
521         uint32_t        read_flags;
522         uint64_t        lock_owner;
523         uint32_t        flags;
524         uint32_t        padding;
525 };
526 
527 #define FUSE_COMPAT_WRITE_IN_SIZE 24
528 
529 struct fuse_write_in {
530         uint64_t        fh;
531         uint64_t        offset;
532         uint32_t        size;
533         uint32_t        write_flags;
534         uint64_t        lock_owner;
535         uint32_t        flags;
536         uint32_t        padding;
537 };
538 
539 struct fuse_write_out {
540         uint32_t        size;
541         uint32_t        padding;
542 };
543 
544 #define FUSE_COMPAT_STATFS_SIZE 48
545 
546 struct fuse_statfs_out {
547         struct fuse_kstatfs st;
548 };
549 
550 struct fuse_fsync_in {
551         uint64_t        fh;
552         uint32_t        fsync_flags;
553         uint32_t        padding;
554 };
555 
556 struct fuse_setxattr_in {
557         uint32_t        size;
558         uint32_t        flags;
559 };
560 
561 struct fuse_getxattr_in {
562         uint32_t        size;
563         uint32_t        padding;
564 };
565 
566 struct fuse_getxattr_out {
567         uint32_t        size;
568         uint32_t        padding;
569 };
570 
571 struct fuse_lk_in {
572         uint64_t        fh;
573         uint64_t        owner;
574         struct fuse_file_lock lk;
575         uint32_t        lk_flags;
576         uint32_t        padding;
577 };
578 
579 struct fuse_lk_out {
580         struct fuse_file_lock lk;
581 };
582 
583 struct fuse_access_in {
584         uint32_t        mask;
585         uint32_t        padding;
586 };
587 
588 struct fuse_init_in {
589         uint32_t        major;
590         uint32_t        minor;
591         uint32_t        max_readahead;
592         uint32_t        flags;
593 };
594 
595 #define FUSE_COMPAT_INIT_OUT_SIZE 8
596 #define FUSE_COMPAT_22_INIT_OUT_SIZE 24
597 
598 struct fuse_init_out {
599         uint32_t        major;
600         uint32_t        minor;
601         uint32_t        max_readahead;
602         uint32_t        flags;
603         uint16_t        max_background;
604         uint16_t        congestion_threshold;
605         uint32_t        max_write;
606         uint32_t        time_gran;
607         uint32_t        unused[9];
608 };
609 
610 #define CUSE_INIT_INFO_MAX 4096
611 
612 struct cuse_init_in {
613         uint32_t        major;
614         uint32_t        minor;
615         uint32_t        unused;
616         uint32_t        flags;
617 };
618 
619 struct cuse_init_out {
620         uint32_t        major;
621         uint32_t        minor;
622         uint32_t        unused;
623         uint32_t        flags;
624         uint32_t        max_read;
625         uint32_t        max_write;
626         uint32_t        dev_major;              /* chardev major */
627         uint32_t        dev_minor;              /* chardev minor */
628         uint32_t        spare[10];
629 };
630 
631 struct fuse_interrupt_in {
632         uint64_t        unique;
633 };
634 
635 struct fuse_bmap_in {
636         uint64_t        block;
637         uint32_t        blocksize;
638         uint32_t        padding;
639 };
640 
641 struct fuse_bmap_out {
642         uint64_t        block;
643 };
644 
645 struct fuse_ioctl_in {
646         uint64_t        fh;
647         uint32_t        flags;
648         uint32_t        cmd;
649         uint64_t        arg;
650         uint32_t        in_size;
651         uint32_t        out_size;
652 };
653 
654 struct fuse_ioctl_iovec {
655         uint64_t        base;
656         uint64_t        len;
657 };
658 
659 struct fuse_ioctl_out {
660         int32_t         result;
661         uint32_t        flags;
662         uint32_t        in_iovs;
663         uint32_t        out_iovs;
664 };
665 
666 struct fuse_poll_in {
667         uint64_t        fh;
668         uint64_t        kh;
669         uint32_t        flags;
670         uint32_t        events;
671 };
672 
673 struct fuse_poll_out {
674         uint32_t        revents;
675         uint32_t        padding;
676 };
677 
678 struct fuse_notify_poll_wakeup_out {
679         uint64_t        kh;
680 };
681 
682 struct fuse_fallocate_in {
683         uint64_t        fh;
684         uint64_t        offset;
685         uint64_t        length;
686         uint32_t        mode;
687         uint32_t        padding;
688 };
689 
690 struct fuse_in_header {
691         uint32_t        len;
692         uint32_t        opcode;
693         uint64_t        unique;
694         uint64_t        nodeid;
695         uint32_t        uid;
696         uint32_t        gid;
697         uint32_t        pid;
698         uint32_t        padding;
699 };
700 
701 struct fuse_out_header {
702         uint32_t        len;
703         int32_t         error;
704         uint64_t        unique;
705 };
706 
707 struct fuse_dirent {
708         uint64_t        ino;
709         uint64_t        off;
710         uint32_t        namelen;
711         uint32_t        type;
712         char name[];
713 };
714 
715 #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
716 #define FUSE_DIRENT_ALIGN(x) \
717         (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))
718 #define FUSE_DIRENT_SIZE(d) \
719         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
720 
721 struct fuse_direntplus {
722         struct fuse_entry_out entry_out;
723         struct fuse_dirent dirent;
724 };
725 
726 #define FUSE_NAME_OFFSET_DIRENTPLUS \
727         offsetof(struct fuse_direntplus, dirent.name)
728 #define FUSE_DIRENTPLUS_SIZE(d) \
729         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
730 
731 struct fuse_notify_inval_inode_out {
732         uint64_t        ino;
733         int64_t         off;
734         int64_t         len;
735 };
736 
737 struct fuse_notify_inval_entry_out {
738         uint64_t        parent;
739         uint32_t        namelen;
740         uint32_t        padding;
741 };
742 
743 struct fuse_notify_delete_out {
744         uint64_t        parent;
745         uint64_t        child;
746         uint32_t        namelen;
747         uint32_t        padding;
748 };
749 
750 struct fuse_notify_store_out {
751         uint64_t        nodeid;
752         uint64_t        offset;
753         uint32_t        size;
754         uint32_t        padding;
755 };
756 
757 struct fuse_notify_retrieve_out {
758         uint64_t        notify_unique;
759         uint64_t        nodeid;
760         uint64_t        offset;
761         uint32_t        size;
762         uint32_t        padding;
763 };
764 
765 /* Matches the size of fuse_write_in */
766 struct fuse_notify_retrieve_in {
767         uint64_t        dummy1;
768         uint64_t        offset;
769         uint32_t        size;
770         uint32_t        dummy2;
771         uint64_t        dummy3;
772         uint64_t        dummy4;
773 };
774 
775 /* Device ioctls: */
776 #define FUSE_DEV_IOC_CLONE      _IOR(229, 0, uint32_t)
777 
778 struct fuse_lseek_in {
779         uint64_t        fh;
780         uint64_t        offset;
781         uint32_t        whence;
782         uint32_t        padding;
783 };
784 
785 struct fuse_lseek_out {
786         uint64_t        offset;
787 };
788 
789 #endif /* _LINUX_FUSE_H */
790 

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