include/uapi/linux/fuse.h

   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
  95 #ifndef _LINUX_FUSE_H
  96 #define _LINUX_FUSE_H
  97
  98 #ifdef __KERNEL__
  99 #include <linux/types.h>
 100 #else
 101 #include <stdint.h>
 102 #endif
 103
 104 /*
 105  * Version negotiation:
 106  *
 107  * Both the kernel and userspace send the version they support in the
 108  * INIT request and reply respectively.
 109  *
 110  * If the major versions match then both shall use the smallest
 111  * of the two minor versions for communication.
 112  *
 113  * If the kernel supports a larger major version, then userspace shall
 114  * reply with the major version it supports, ignore the rest of the
 115  * INIT message and expect a new INIT message from the kernel with a
 116  * matching major version.
 117  *
 118  * If the library supports a larger major version, then it shall fall
 119  * back to the major protocol version sent by the kernel for
 120  * communication and reply with that major version (and an arbitrary
 121  * supported minor version).
 122  */
 123
 124 /** Version number of this interface */
 125 #define FUSE_KERNEL_VERSION 7
 126
 127 /** Minor version number of this interface */
 128 #define FUSE_KERNEL_MINOR_VERSION 21
 129
 130 /** The node ID of the root inode */
 131 #define FUSE_ROOT_ID 1
 132
 133 /* Make sure all structures are padded to 64bit boundary, so 32bit
 134    userspace works under 64bit kernels */
 135
 136 struct fuse_attr {
 137         uint64_t        ino;
 138         uint64_t        size;
 139         uint64_t        blocks;
 140         uint64_t        atime;
 141         uint64_t        mtime;
 142         uint64_t        ctime;
 143         uint32_t        atimensec;
 144         uint32_t        mtimensec;
 145         uint32_t        ctimensec;
 146         uint32_t        mode;
 147         uint32_t        nlink;
 148         uint32_t        uid;
 149         uint32_t        gid;
 150         uint32_t        rdev;
 151         uint32_t        blksize;
 152         uint32_t        padding;
 153 };
 154
 155 struct fuse_kstatfs {
 156         uint64_t        blocks;
 157         uint64_t        bfree;
 158         uint64_t        bavail;
 159         uint64_t        files;
 160         uint64_t        ffree;
 161         uint32_t        bsize;
 162         uint32_t        namelen;
 163         uint32_t        frsize;
 164         uint32_t        padding;
 165         uint32_t        spare[6];
 166 };
 167
 168 struct fuse_file_lock {
 169         uint64_t        start;
 170         uint64_t        end;
 171         uint32_t        type;
 172         uint32_t        pid; /* tgid */
 173 };
 174
 175 /**
 176  * Bitmasks for fuse_setattr_in.valid
 177  */
 178 #define FATTR_MODE      (1 << 0)
 179 #define FATTR_UID       (1 << 1)
 180 #define FATTR_GID       (1 << 2)
 181 #define FATTR_SIZE      (1 << 3)
 182 #define FATTR_ATIME     (1 << 4)
 183 #define FATTR_MTIME     (1 << 5)
 184 #define FATTR_FH        (1 << 6)
 185 #define FATTR_ATIME_NOW (1 << 7)
 186 #define FATTR_MTIME_NOW (1 << 8)
 187 #define FATTR_LOCKOWNER (1 << 9)
 188
 189 /**
 190  * Flags returned by the OPEN request
 191  *
 192  * FOPEN_DIRECT_IO: bypass page cache for this open file
 193  * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
 194  * FOPEN_NONSEEKABLE: the file is not seekable
 195  */
 196 #define FOPEN_DIRECT_IO         (1 << 0)
 197 #define FOPEN_KEEP_CACHE        (1 << 1)
 198 #define FOPEN_NONSEEKABLE       (1 << 2)
 199
 200 /**
 201  * INIT request/reply flags
 202  *
 203  * FUSE_ASYNC_READ: asynchronous read requests
 204  * FUSE_POSIX_LOCKS: remote locking for POSIX file locks
 205  * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported)
 206  * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem
 207  * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
 208  * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB
 209  * FUSE_DONT_MASK: don't apply umask to file mode on create operations
 210  * FUSE_SPLICE_WRITE: kernel supports splice write on the device
 211  * FUSE_SPLICE_MOVE: kernel supports splice move on the device
 212  * FUSE_SPLICE_READ: kernel supports splice read on the device
 213  * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
 214  * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
 215  * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
 216  * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
 217  * FUSE_READDIRPLUS_AUTO: adaptive readdirplus
 218  */
 219 #define FUSE_ASYNC_READ         (1 << 0)
 220 #define FUSE_POSIX_LOCKS        (1 << 1)
 221 #define FUSE_FILE_OPS           (1 << 2)
 222 #define FUSE_ATOMIC_O_TRUNC     (1 << 3)
 223 #define FUSE_EXPORT_SUPPORT     (1 << 4)
 224 #define FUSE_BIG_WRITES         (1 << 5)
 225 #define FUSE_DONT_MASK          (1 << 6)
 226 #define FUSE_SPLICE_WRITE       (1 << 7)
 227 #define FUSE_SPLICE_MOVE        (1 << 8)
 228 #define FUSE_SPLICE_READ        (1 << 9)
 229 #define FUSE_FLOCK_LOCKS        (1 << 10)
 230 #define FUSE_HAS_IOCTL_DIR      (1 << 11)
 231 #define FUSE_AUTO_INVAL_DATA    (1 << 12)
 232 #define FUSE_DO_READDIRPLUS     (1 << 13)
 233 #define FUSE_READDIRPLUS_AUTO   (1 << 14)
 234
 235 /**
 236  * CUSE INIT request/reply flags
 237  *
 238  * CUSE_UNRESTRICTED_IOCTL:  use unrestricted ioctl
 239  */
 240 #define CUSE_UNRESTRICTED_IOCTL (1 << 0)
 241
 242 /**
 243  * Release flags
 244  */
 245 #define FUSE_RELEASE_FLUSH      (1 << 0)
 246 #define FUSE_RELEASE_FLOCK_UNLOCK       (1 << 1)
 247
 248 /**
 249  * Getattr flags
 250  */
 251 #define FUSE_GETATTR_FH         (1 << 0)
 252
 253 /**
 254  * Lock flags
 255  */
 256 #define FUSE_LK_FLOCK           (1 << 0)
 257
 258 /**
 259  * WRITE flags
 260  *
 261  * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
 262  * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
 263  */
 264 #define FUSE_WRITE_CACHE        (1 << 0)
 265 #define FUSE_WRITE_LOCKOWNER    (1 << 1)
 266
 267 /**
 268  * Read flags
 269  */
 270 #define FUSE_READ_LOCKOWNER     (1 << 1)
 271
 272 /**
 273  * Ioctl flags
 274  *
 275  * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
 276  * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
 277  * FUSE_IOCTL_RETRY: retry with new iovecs
 278  * FUSE_IOCTL_32BIT: 32bit ioctl
 279  * FUSE_IOCTL_DIR: is a directory
 280  *
 281  * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
 282  */
 283 #define FUSE_IOCTL_COMPAT       (1 << 0)
 284 #define FUSE_IOCTL_UNRESTRICTED (1 << 1)
 285 #define FUSE_IOCTL_RETRY        (1 << 2)
 286 #define FUSE_IOCTL_32BIT        (1 << 3)
 287 #define FUSE_IOCTL_DIR          (1 << 4)
 288
 289 #define FUSE_IOCTL_MAX_IOV      256
 290
 291 /**
 292  * Poll flags
 293  *
 294  * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
 295  */
 296 #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
 297
 298 enum fuse_opcode {
 299         FUSE_LOOKUP        = 1,
 300         FUSE_FORGET        = 2,  /* no reply */
 301         FUSE_GETATTR       = 3,
 302         FUSE_SETATTR       = 4,
 303         FUSE_READLINK      = 5,
 304         FUSE_SYMLINK       = 6,
 305         FUSE_MKNOD         = 8,
 306         FUSE_MKDIR         = 9,
 307         FUSE_UNLINK        = 10,
 308         FUSE_RMDIR         = 11,
 309         FUSE_RENAME        = 12,
 310         FUSE_LINK          = 13,
 311         FUSE_OPEN          = 14,
 312         FUSE_READ          = 15,
 313         FUSE_WRITE         = 16,
 314         FUSE_STATFS        = 17,
 315         FUSE_RELEASE       = 18,
 316         FUSE_FSYNC         = 20,
 317         FUSE_SETXATTR      = 21,
 318         FUSE_GETXATTR      = 22,
 319         FUSE_LISTXATTR     = 23,
 320         FUSE_REMOVEXATTR   = 24,
 321         FUSE_FLUSH         = 25,
 322         FUSE_INIT          = 26,
 323         FUSE_OPENDIR       = 27,
 324         FUSE_READDIR       = 28,
 325         FUSE_RELEASEDIR    = 29,
 326         FUSE_FSYNCDIR      = 30,
 327         FUSE_GETLK         = 31,
 328         FUSE_SETLK         = 32,
 329         FUSE_SETLKW        = 33,
 330         FUSE_ACCESS        = 34,
 331         FUSE_CREATE        = 35,
 332         FUSE_INTERRUPT     = 36,
 333         FUSE_BMAP          = 37,
 334         FUSE_DESTROY       = 38,
 335         FUSE_IOCTL         = 39,
 336         FUSE_POLL          = 40,
 337         FUSE_NOTIFY_REPLY  = 41,
 338         FUSE_BATCH_FORGET  = 42,
 339         FUSE_FALLOCATE     = 43,
 340         FUSE_READDIRPLUS   = 44,
 341
 342         /* CUSE specific operations */
 343         CUSE_INIT          = 4096,
 344 };
 345
 346 enum fuse_notify_code {
 347         FUSE_NOTIFY_POLL   = 1,
 348         FUSE_NOTIFY_INVAL_INODE = 2,
 349         FUSE_NOTIFY_INVAL_ENTRY = 3,
 350         FUSE_NOTIFY_STORE = 4,
 351         FUSE_NOTIFY_RETRIEVE = 5,
 352         FUSE_NOTIFY_DELETE = 6,
 353         FUSE_NOTIFY_CODE_MAX,
 354 };
 355
 356 /* The read buffer is required to be at least 8k, but may be much larger */
 357 #define FUSE_MIN_READ_BUFFER 8192
 358
 359 #define FUSE_COMPAT_ENTRY_OUT_SIZE 120
 360
 361 struct fuse_entry_out {
 362         uint64_t        nodeid;         /* Inode ID */
 363         uint64_t        generation;     /* Inode generation: nodeid:gen must
 364                                            be unique for the fs's lifetime */
 365         uint64_t        entry_valid;    /* Cache timeout for the name */
 366         uint64_t        attr_valid;     /* Cache timeout for the attributes */
 367         uint32_t        entry_valid_nsec;
 368         uint32_t        attr_valid_nsec;
 369         struct fuse_attr attr;
 370 };
 371
 372 struct fuse_forget_in {
 373         uint64_t        nlookup;
 374 };
 375
 376 struct fuse_forget_one {
 377         uint64_t        nodeid;
 378         uint64_t        nlookup;
 379 };
 380
 381 struct fuse_batch_forget_in {
 382         uint32_t        count;
 383         uint32_t        dummy;
 384 };
 385
 386 struct fuse_getattr_in {
 387         uint32_t        getattr_flags;
 388         uint32_t        dummy;
 389         uint64_t        fh;
 390 };
 391
 392 #define FUSE_COMPAT_ATTR_OUT_SIZE 96
 393
 394 struct fuse_attr_out {
 395         uint64_t        attr_valid;     /* Cache timeout for the attributes */
 396         uint32_t        attr_valid_nsec;
 397         uint32_t        dummy;
 398         struct fuse_attr attr;
 399 };
 400
 401 #define FUSE_COMPAT_MKNOD_IN_SIZE 8
 402
 403 struct fuse_mknod_in {
 404         uint32_t        mode;
 405         uint32_t        rdev;
 406         uint32_t        umask;
 407         uint32_t        padding;
 408 };
 409
 410 struct fuse_mkdir_in {
 411         uint32_t        mode;
 412         uint32_t        umask;
 413 };
 414
 415 struct fuse_rename_in {
 416         uint64_t        newdir;
 417 };
 418
 419 struct fuse_link_in {
 420         uint64_t        oldnodeid;
 421 };
 422
 423 struct fuse_setattr_in {
 424         uint32_t        valid;
 425         uint32_t        padding;
 426         uint64_t        fh;
 427         uint64_t        size;
 428         uint64_t        lock_owner;
 429         uint64_t        atime;
 430         uint64_t        mtime;
 431         uint64_t        unused2;
 432         uint32_t        atimensec;
 433         uint32_t        mtimensec;
 434         uint32_t        unused3;
 435         uint32_t        mode;
 436         uint32_t        unused4;
 437         uint32_t        uid;
 438         uint32_t        gid;
 439         uint32_t        unused5;
 440 };
 441
 442 struct fuse_open_in {
 443         uint32_t        flags;
 444         uint32_t        unused;
 445 };
 446
 447 struct fuse_create_in {
 448         uint32_t        flags;
 449         uint32_t        mode;
 450         uint32_t        umask;
 451         uint32_t        padding;
 452 };
 453
 454 struct fuse_open_out {
 455         uint64_t        fh;
 456         uint32_t        open_flags;
 457         uint32_t        padding;
 458 };
 459
 460 struct fuse_release_in {
 461         uint64_t        fh;
 462         uint32_t        flags;
 463         uint32_t        release_flags;
 464         uint64_t        lock_owner;
 465 };
 466
 467 struct fuse_flush_in {
 468         uint64_t        fh;
 469         uint32_t        unused;
 470         uint32_t        padding;
 471         uint64_t        lock_owner;
 472 };
 473
 474 struct fuse_read_in {
 475         uint64_t        fh;
 476         uint64_t        offset;
 477         uint32_t        size;
 478         uint32_t        read_flags;
 479         uint64_t        lock_owner;
 480         uint32_t        flags;
 481         uint32_t        padding;
 482 };
 483
 484 #define FUSE_COMPAT_WRITE_IN_SIZE 24
 485
 486 struct fuse_write_in {
 487         uint64_t        fh;
 488         uint64_t        offset;
 489         uint32_t        size;
 490         uint32_t        write_flags;
 491         uint64_t        lock_owner;
 492         uint32_t        flags;
 493         uint32_t        padding;
 494 };
 495
 496 struct fuse_write_out {
 497         uint32_t        size;
 498         uint32_t        padding;
 499 };
 500
 501 #define FUSE_COMPAT_STATFS_SIZE 48
 502
 503 struct fuse_statfs_out {
 504         struct fuse_kstatfs st;
 505 };
 506
 507 struct fuse_fsync_in {
 508         uint64_t        fh;
 509         uint32_t        fsync_flags;
 510         uint32_t        padding;
 511 };
 512
 513 struct fuse_setxattr_in {
 514         uint32_t        size;
 515         uint32_t        flags;
 516 };
 517
 518 struct fuse_getxattr_in {
 519         uint32_t        size;
 520         uint32_t        padding;
 521 };
 522
 523 struct fuse_getxattr_out {
 524         uint32_t        size;
 525         uint32_t        padding;
 526 };
 527
 528 struct fuse_lk_in {
 529         uint64_t        fh;
 530         uint64_t        owner;
 531         struct fuse_file_lock lk;
 532         uint32_t        lk_flags;
 533         uint32_t        padding;
 534 };
 535
 536 struct fuse_lk_out {
 537         struct fuse_file_lock lk;
 538 };
 539
 540 struct fuse_access_in {
 541         uint32_t        mask;
 542         uint32_t        padding;
 543 };
 544
 545 struct fuse_init_in {
 546         uint32_t        major;
 547         uint32_t        minor;
 548         uint32_t        max_readahead;
 549         uint32_t        flags;
 550 };
 551
 552 struct fuse_init_out {
 553         uint32_t        major;
 554         uint32_t        minor;
 555         uint32_t        max_readahead;
 556         uint32_t        flags;
 557         uint16_t        max_background;
 558         uint16_t        congestion_threshold;
 559         uint32_t        max_write;
 560 };
 561
 562 #define CUSE_INIT_INFO_MAX 4096
 563
 564 struct cuse_init_in {
 565         uint32_t        major;
 566         uint32_t        minor;
 567         uint32_t        unused;
 568         uint32_t        flags;
 569 };
 570
 571 struct cuse_init_out {
 572         uint32_t        major;
 573         uint32_t        minor;
 574         uint32_t        unused;
 575         uint32_t        flags;
 576         uint32_t        max_read;
 577         uint32_t        max_write;
 578         uint32_t        dev_major;              /* chardev major */
 579         uint32_t        dev_minor;              /* chardev minor */
 580         uint32_t        spare[10];
 581 };
 582
 583 struct fuse_interrupt_in {
 584         uint64_t        unique;
 585 };
 586
 587 struct fuse_bmap_in {
 588         uint64_t        block;
 589         uint32_t        blocksize;
 590         uint32_t        padding;
 591 };
 592
 593 struct fuse_bmap_out {
 594         uint64_t        block;
 595 };
 596
 597 struct fuse_ioctl_in {
 598         uint64_t        fh;
 599         uint32_t        flags;
 600         uint32_t        cmd;
 601         uint64_t        arg;
 602         uint32_t        in_size;
 603         uint32_t        out_size;
 604 };
 605
 606 struct fuse_ioctl_iovec {
 607         uint64_t        base;
 608         uint64_t        len;
 609 };
 610
 611 struct fuse_ioctl_out {
 612         int32_t         result;
 613         uint32_t        flags;
 614         uint32_t        in_iovs;
 615         uint32_t        out_iovs;
 616 };
 617
 618 struct fuse_poll_in {
 619         uint64_t        fh;
 620         uint64_t        kh;
 621         uint32_t        flags;
 622         uint32_t        events;
 623 };
 624
 625 struct fuse_poll_out {
 626         uint32_t        revents;
 627         uint32_t        padding;
 628 };
 629
 630 struct fuse_notify_poll_wakeup_out {
 631         uint64_t        kh;
 632 };
 633
 634 struct fuse_fallocate_in {
 635         uint64_t        fh;
 636         uint64_t        offset;
 637         uint64_t        length;
 638         uint32_t        mode;
 639         uint32_t        padding;
 640 };
 641
 642 struct fuse_in_header {
 643         uint32_t        len;
 644         uint32_t        opcode;
 645         uint64_t        unique;
 646         uint64_t        nodeid;
 647         uint32_t        uid;
 648         uint32_t        gid;
 649         uint32_t        pid;
 650         uint32_t        padding;
 651 };
 652
 653 struct fuse_out_header {
 654         uint32_t        len;
 655         int32_t         error;
 656         uint64_t        unique;
 657 };
 658
 659 struct fuse_dirent {
 660         uint64_t        ino;
 661         uint64_t        off;
 662         uint32_t        namelen;
 663         uint32_t        type;
 664         char name[];
 665 };
 666
 667 #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
 668 #define FUSE_DIRENT_ALIGN(x) \
 669         (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))
 670 #define FUSE_DIRENT_SIZE(d) \
 671         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
 672
 673 struct fuse_direntplus {
 674         struct fuse_entry_out entry_out;
 675         struct fuse_dirent dirent;
 676 };
 677
 678 #define FUSE_NAME_OFFSET_DIRENTPLUS \
 679         offsetof(struct fuse_direntplus, dirent.name)
 680 #define FUSE_DIRENTPLUS_SIZE(d) \
 681         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
 682
 683 struct fuse_notify_inval_inode_out {
 684         uint64_t        ino;
 685         int64_t         off;
 686         int64_t         len;
 687 };
 688
 689 struct fuse_notify_inval_entry_out {
 690         uint64_t        parent;
 691         uint32_t        namelen;
 692         uint32_t        padding;
 693 };
 694
 695 struct fuse_notify_delete_out {
 696         uint64_t        parent;
 697         uint64_t        child;
 698         uint32_t        namelen;
 699         uint32_t        padding;
 700 };
 701
 702 struct fuse_notify_store_out {
 703         uint64_t        nodeid;
 704         uint64_t        offset;
 705         uint32_t        size;
 706         uint32_t        padding;
 707 };
 708
 709 struct fuse_notify_retrieve_out {
 710         uint64_t        notify_unique;
 711         uint64_t        nodeid;
 712         uint64_t        offset;
 713         uint32_t        size;
 714         uint32_t        padding;
 715 };
 716
 717 /* Matches the size of fuse_write_in */
 718 struct fuse_notify_retrieve_in {
 719         uint64_t        dummy1;
 720         uint64_t        offset;
 721         uint32_t        size;
 722         uint32_t        dummy2;
 723         uint64_t        dummy3;
 724         uint64_t        dummy4;
 725 };
 726
 727 #endif /* _LINUX_FUSE_H */