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  * 7.22
  95  *  - add FUSE_ASYNC_DIO
  96  */
  97
  98 #ifndef _LINUX_FUSE_H
  99 #define _LINUX_FUSE_H
 100
 101 #ifdef __KERNEL__
 102 #include <linux/types.h>
 103 #else
 104 #include <stdint.h>
 105 #endif
 106
 107 /*
 108  * Version negotiation:
 109  *
 110  * Both the kernel and userspace send the version they support in the
 111  * INIT request and reply respectively.
 112  *
 113  * If the major versions match then both shall use the smallest
 114  * of the two minor versions for communication.
 115  *
 116  * If the kernel supports a larger major version, then userspace shall
 117  * reply with the major version it supports, ignore the rest of the
 118  * INIT message and expect a new INIT message from the kernel with a
 119  * matching major version.
 120  *
 121  * If the library supports a larger major version, then it shall fall
 122  * back to the major protocol version sent by the kernel for
 123  * communication and reply with that major version (and an arbitrary
 124  * supported minor version).
 125  */
 126
 127 /** Version number of this interface */
 128 #define FUSE_KERNEL_VERSION 7
 129
 130 /** Minor version number of this interface */
 131 #define FUSE_KERNEL_MINOR_VERSION 22
 132
 133 /** The node ID of the root inode */
 134 #define FUSE_ROOT_ID 1
 135
 136 /* Make sure all structures are padded to 64bit boundary, so 32bit
 137    userspace works under 64bit kernels */
 138
 139 struct fuse_attr {
 140         uint64_t        ino;
 141         uint64_t        size;
 142         uint64_t        blocks;
 143         uint64_t        atime;
 144         uint64_t        mtime;
 145         uint64_t        ctime;
 146         uint32_t        atimensec;
 147         uint32_t        mtimensec;
 148         uint32_t        ctimensec;
 149         uint32_t        mode;
 150         uint32_t        nlink;
 151         uint32_t        uid;
 152         uint32_t        gid;
 153         uint32_t        rdev;
 154         uint32_t        blksize;
 155         uint32_t        padding;
 156 };
 157
 158 struct fuse_kstatfs {
 159         uint64_t        blocks;
 160         uint64_t        bfree;
 161         uint64_t        bavail;
 162         uint64_t        files;
 163         uint64_t        ffree;
 164         uint32_t        bsize;
 165         uint32_t        namelen;
 166         uint32_t        frsize;
 167         uint32_t        padding;
 168         uint32_t        spare[6];
 169 };
 170
 171 struct fuse_file_lock {
 172         uint64_t        start;
 173         uint64_t        end;
 174         uint32_t        type;
 175         uint32_t        pid; /* tgid */
 176 };
 177
 178 /**
 179  * Bitmasks for fuse_setattr_in.valid
 180  */
 181 #define FATTR_MODE      (1 << 0)
 182 #define FATTR_UID       (1 << 1)
 183 #define FATTR_GID       (1 << 2)
 184 #define FATTR_SIZE      (1 << 3)
 185 #define FATTR_ATIME     (1 << 4)
 186 #define FATTR_MTIME     (1 << 5)
 187 #define FATTR_FH        (1 << 6)
 188 #define FATTR_ATIME_NOW (1 << 7)
 189 #define FATTR_MTIME_NOW (1 << 8)
 190 #define FATTR_LOCKOWNER (1 << 9)
 191
 192 /**
 193  * Flags returned by the OPEN request
 194  *
 195  * FOPEN_DIRECT_IO: bypass page cache for this open file
 196  * FOPEN_KEEP_CACHE: don't invalidate the data cache on open
 197  * FOPEN_NONSEEKABLE: the file is not seekable
 198  */
 199 #define FOPEN_DIRECT_IO         (1 << 0)
 200 #define FOPEN_KEEP_CACHE        (1 << 1)
 201 #define FOPEN_NONSEEKABLE       (1 << 2)
 202
 203 /**
 204  * INIT request/reply flags
 205  *
 206  * FUSE_ASYNC_READ: asynchronous read requests
 207  * FUSE_POSIX_LOCKS: remote locking for POSIX file locks
 208  * FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported)
 209  * FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem
 210  * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
 211  * FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB
 212  * FUSE_DONT_MASK: don't apply umask to file mode on create operations
 213  * FUSE_SPLICE_WRITE: kernel supports splice write on the device
 214  * FUSE_SPLICE_MOVE: kernel supports splice move on the device
 215  * FUSE_SPLICE_READ: kernel supports splice read on the device
 216  * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
 217  * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
 218  * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
 219  * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
 220  * FUSE_READDIRPLUS_AUTO: adaptive readdirplus
 221  * FUSE_ASYNC_DIO: asynchronous direct I/O submission
 222  */
 223 #define FUSE_ASYNC_READ         (1 << 0)
 224 #define FUSE_POSIX_LOCKS        (1 << 1)
 225 #define FUSE_FILE_OPS           (1 << 2)
 226 #define FUSE_ATOMIC_O_TRUNC     (1 << 3)
 227 #define FUSE_EXPORT_SUPPORT     (1 << 4)
 228 #define FUSE_BIG_WRITES         (1 << 5)
 229 #define FUSE_DONT_MASK          (1 << 6)
 230 #define FUSE_SPLICE_WRITE       (1 << 7)
 231 #define FUSE_SPLICE_MOVE        (1 << 8)
 232 #define FUSE_SPLICE_READ        (1 << 9)
 233 #define FUSE_FLOCK_LOCKS        (1 << 10)
 234 #define FUSE_HAS_IOCTL_DIR      (1 << 11)
 235 #define FUSE_AUTO_INVAL_DATA    (1 << 12)
 236 #define FUSE_DO_READDIRPLUS     (1 << 13)
 237 #define FUSE_READDIRPLUS_AUTO   (1 << 14)
 238 #define FUSE_ASYNC_DIO          (1 << 15)
 239
 240 /**
 241  * CUSE INIT request/reply flags
 242  *
 243  * CUSE_UNRESTRICTED_IOCTL:  use unrestricted ioctl
 244  */
 245 #define CUSE_UNRESTRICTED_IOCTL (1 << 0)
 246
 247 /**
 248  * Release flags
 249  */
 250 #define FUSE_RELEASE_FLUSH      (1 << 0)
 251 #define FUSE_RELEASE_FLOCK_UNLOCK       (1 << 1)
 252
 253 /**
 254  * Getattr flags
 255  */
 256 #define FUSE_GETATTR_FH         (1 << 0)
 257
 258 /**
 259  * Lock flags
 260  */
 261 #define FUSE_LK_FLOCK           (1 << 0)
 262
 263 /**
 264  * WRITE flags
 265  *
 266  * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
 267  * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
 268  */
 269 #define FUSE_WRITE_CACHE        (1 << 0)
 270 #define FUSE_WRITE_LOCKOWNER    (1 << 1)
 271
 272 /**
 273  * Read flags
 274  */
 275 #define FUSE_READ_LOCKOWNER     (1 << 1)
 276
 277 /**
 278  * Ioctl flags
 279  *
 280  * FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
 281  * FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
 282  * FUSE_IOCTL_RETRY: retry with new iovecs
 283  * FUSE_IOCTL_32BIT: 32bit ioctl
 284  * FUSE_IOCTL_DIR: is a directory
 285  *
 286  * FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
 287  */
 288 #define FUSE_IOCTL_COMPAT       (1 << 0)
 289 #define FUSE_IOCTL_UNRESTRICTED (1 << 1)
 290 #define FUSE_IOCTL_RETRY        (1 << 2)
 291 #define FUSE_IOCTL_32BIT        (1 << 3)
 292 #define FUSE_IOCTL_DIR          (1 << 4)
 293
 294 #define FUSE_IOCTL_MAX_IOV      256
 295
 296 /**
 297  * Poll flags
 298  *
 299  * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
 300  */
 301 #define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
 302
 303 enum fuse_opcode {
 304         FUSE_LOOKUP        = 1,
 305         FUSE_FORGET        = 2,  /* no reply */
 306         FUSE_GETATTR       = 3,
 307         FUSE_SETATTR       = 4,
 308         FUSE_READLINK      = 5,
 309         FUSE_SYMLINK       = 6,
 310         FUSE_MKNOD         = 8,
 311         FUSE_MKDIR         = 9,
 312         FUSE_UNLINK        = 10,
 313         FUSE_RMDIR         = 11,
 314         FUSE_RENAME        = 12,
 315         FUSE_LINK          = 13,
 316         FUSE_OPEN          = 14,
 317         FUSE_READ          = 15,
 318         FUSE_WRITE         = 16,
 319         FUSE_STATFS        = 17,
 320         FUSE_RELEASE       = 18,
 321         FUSE_FSYNC         = 20,
 322         FUSE_SETXATTR      = 21,
 323         FUSE_GETXATTR      = 22,
 324         FUSE_LISTXATTR     = 23,
 325         FUSE_REMOVEXATTR   = 24,
 326         FUSE_FLUSH         = 25,
 327         FUSE_INIT          = 26,
 328         FUSE_OPENDIR       = 27,
 329         FUSE_READDIR       = 28,
 330         FUSE_RELEASEDIR    = 29,
 331         FUSE_FSYNCDIR      = 30,
 332         FUSE_GETLK         = 31,
 333         FUSE_SETLK         = 32,
 334         FUSE_SETLKW        = 33,
 335         FUSE_ACCESS        = 34,
 336         FUSE_CREATE        = 35,
 337         FUSE_INTERRUPT     = 36,
 338         FUSE_BMAP          = 37,
 339         FUSE_DESTROY       = 38,
 340         FUSE_IOCTL         = 39,
 341         FUSE_POLL          = 40,
 342         FUSE_NOTIFY_REPLY  = 41,
 343         FUSE_BATCH_FORGET  = 42,
 344         FUSE_FALLOCATE     = 43,
 345         FUSE_READDIRPLUS   = 44,
 346
 347         /* CUSE specific operations */
 348         CUSE_INIT          = 4096,
 349 };
 350
 351 enum fuse_notify_code {
 352         FUSE_NOTIFY_POLL   = 1,
 353         FUSE_NOTIFY_INVAL_INODE = 2,
 354         FUSE_NOTIFY_INVAL_ENTRY = 3,
 355         FUSE_NOTIFY_STORE = 4,
 356         FUSE_NOTIFY_RETRIEVE = 5,
 357         FUSE_NOTIFY_DELETE = 6,
 358         FUSE_NOTIFY_CODE_MAX,
 359 };
 360
 361 /* The read buffer is required to be at least 8k, but may be much larger */
 362 #define FUSE_MIN_READ_BUFFER 8192
 363
 364 #define FUSE_COMPAT_ENTRY_OUT_SIZE 120
 365
 366 struct fuse_entry_out {
 367         uint64_t        nodeid;         /* Inode ID */
 368         uint64_t        generation;     /* Inode generation: nodeid:gen must
 369                                            be unique for the fs's lifetime */
 370         uint64_t        entry_valid;    /* Cache timeout for the name */
 371         uint64_t        attr_valid;     /* Cache timeout for the attributes */
 372         uint32_t        entry_valid_nsec;
 373         uint32_t        attr_valid_nsec;
 374         struct fuse_attr attr;
 375 };
 376
 377 struct fuse_forget_in {
 378         uint64_t        nlookup;
 379 };
 380
 381 struct fuse_forget_one {
 382         uint64_t        nodeid;
 383         uint64_t        nlookup;
 384 };
 385
 386 struct fuse_batch_forget_in {
 387         uint32_t        count;
 388         uint32_t        dummy;
 389 };
 390
 391 struct fuse_getattr_in {
 392         uint32_t        getattr_flags;
 393         uint32_t        dummy;
 394         uint64_t        fh;
 395 };
 396
 397 #define FUSE_COMPAT_ATTR_OUT_SIZE 96
 398
 399 struct fuse_attr_out {
 400         uint64_t        attr_valid;     /* Cache timeout for the attributes */
 401         uint32_t        attr_valid_nsec;
 402         uint32_t        dummy;
 403         struct fuse_attr attr;
 404 };
 405
 406 #define FUSE_COMPAT_MKNOD_IN_SIZE 8
 407
 408 struct fuse_mknod_in {
 409         uint32_t        mode;
 410         uint32_t        rdev;
 411         uint32_t        umask;
 412         uint32_t        padding;
 413 };
 414
 415 struct fuse_mkdir_in {
 416         uint32_t        mode;
 417         uint32_t        umask;
 418 };
 419
 420 struct fuse_rename_in {
 421         uint64_t        newdir;
 422 };
 423
 424 struct fuse_link_in {
 425         uint64_t        oldnodeid;
 426 };
 427
 428 struct fuse_setattr_in {
 429         uint32_t        valid;
 430         uint32_t        padding;
 431         uint64_t        fh;
 432         uint64_t        size;
 433         uint64_t        lock_owner;
 434         uint64_t        atime;
 435         uint64_t        mtime;
 436         uint64_t        unused2;
 437         uint32_t        atimensec;
 438         uint32_t        mtimensec;
 439         uint32_t        unused3;
 440         uint32_t        mode;
 441         uint32_t        unused4;
 442         uint32_t        uid;
 443         uint32_t        gid;
 444         uint32_t        unused5;
 445 };
 446
 447 struct fuse_open_in {
 448         uint32_t        flags;
 449         uint32_t        unused;
 450 };
 451
 452 struct fuse_create_in {
 453         uint32_t        flags;
 454         uint32_t        mode;
 455         uint32_t        umask;
 456         uint32_t        padding;
 457 };
 458
 459 struct fuse_open_out {
 460         uint64_t        fh;
 461         uint32_t        open_flags;
 462         uint32_t        padding;
 463 };
 464
 465 struct fuse_release_in {
 466         uint64_t        fh;
 467         uint32_t        flags;
 468         uint32_t        release_flags;
 469         uint64_t        lock_owner;
 470 };
 471
 472 struct fuse_flush_in {
 473         uint64_t        fh;
 474         uint32_t        unused;
 475         uint32_t        padding;
 476         uint64_t        lock_owner;
 477 };
 478
 479 struct fuse_read_in {
 480         uint64_t        fh;
 481         uint64_t        offset;
 482         uint32_t        size;
 483         uint32_t        read_flags;
 484         uint64_t        lock_owner;
 485         uint32_t        flags;
 486         uint32_t        padding;
 487 };
 488
 489 #define FUSE_COMPAT_WRITE_IN_SIZE 24
 490
 491 struct fuse_write_in {
 492         uint64_t        fh;
 493         uint64_t        offset;
 494         uint32_t        size;
 495         uint32_t        write_flags;
 496         uint64_t        lock_owner;
 497         uint32_t        flags;
 498         uint32_t        padding;
 499 };
 500
 501 struct fuse_write_out {
 502         uint32_t        size;
 503         uint32_t        padding;
 504 };
 505
 506 #define FUSE_COMPAT_STATFS_SIZE 48
 507
 508 struct fuse_statfs_out {
 509         struct fuse_kstatfs st;
 510 };
 511
 512 struct fuse_fsync_in {
 513         uint64_t        fh;
 514         uint32_t        fsync_flags;
 515         uint32_t        padding;
 516 };
 517
 518 struct fuse_setxattr_in {
 519         uint32_t        size;
 520         uint32_t        flags;
 521 };
 522
 523 struct fuse_getxattr_in {
 524         uint32_t        size;
 525         uint32_t        padding;
 526 };
 527
 528 struct fuse_getxattr_out {
 529         uint32_t        size;
 530         uint32_t        padding;
 531 };
 532
 533 struct fuse_lk_in {
 534         uint64_t        fh;
 535         uint64_t        owner;
 536         struct fuse_file_lock lk;
 537         uint32_t        lk_flags;
 538         uint32_t        padding;
 539 };
 540
 541 struct fuse_lk_out {
 542         struct fuse_file_lock lk;
 543 };
 544
 545 struct fuse_access_in {
 546         uint32_t        mask;
 547         uint32_t        padding;
 548 };
 549
 550 struct fuse_init_in {
 551         uint32_t        major;
 552         uint32_t        minor;
 553         uint32_t        max_readahead;
 554         uint32_t        flags;
 555 };
 556
 557 struct fuse_init_out {
 558         uint32_t        major;
 559         uint32_t        minor;
 560         uint32_t        max_readahead;
 561         uint32_t        flags;
 562         uint16_t        max_background;
 563         uint16_t        congestion_threshold;
 564         uint32_t        max_write;
 565 };
 566
 567 #define CUSE_INIT_INFO_MAX 4096
 568
 569 struct cuse_init_in {
 570         uint32_t        major;
 571         uint32_t        minor;
 572         uint32_t        unused;
 573         uint32_t        flags;
 574 };
 575
 576 struct cuse_init_out {
 577         uint32_t        major;
 578         uint32_t        minor;
 579         uint32_t        unused;
 580         uint32_t        flags;
 581         uint32_t        max_read;
 582         uint32_t        max_write;
 583         uint32_t        dev_major;              /* chardev major */
 584         uint32_t        dev_minor;              /* chardev minor */
 585         uint32_t        spare[10];
 586 };
 587
 588 struct fuse_interrupt_in {
 589         uint64_t        unique;
 590 };
 591
 592 struct fuse_bmap_in {
 593         uint64_t        block;
 594         uint32_t        blocksize;
 595         uint32_t        padding;
 596 };
 597
 598 struct fuse_bmap_out {
 599         uint64_t        block;
 600 };
 601
 602 struct fuse_ioctl_in {
 603         uint64_t        fh;
 604         uint32_t        flags;
 605         uint32_t        cmd;
 606         uint64_t        arg;
 607         uint32_t        in_size;
 608         uint32_t        out_size;
 609 };
 610
 611 struct fuse_ioctl_iovec {
 612         uint64_t        base;
 613         uint64_t        len;
 614 };
 615
 616 struct fuse_ioctl_out {
 617         int32_t         result;
 618         uint32_t        flags;
 619         uint32_t        in_iovs;
 620         uint32_t        out_iovs;
 621 };
 622
 623 struct fuse_poll_in {
 624         uint64_t        fh;
 625         uint64_t        kh;
 626         uint32_t        flags;
 627         uint32_t        events;
 628 };
 629
 630 struct fuse_poll_out {
 631         uint32_t        revents;
 632         uint32_t        padding;
 633 };
 634
 635 struct fuse_notify_poll_wakeup_out {
 636         uint64_t        kh;
 637 };
 638
 639 struct fuse_fallocate_in {
 640         uint64_t        fh;
 641         uint64_t        offset;
 642         uint64_t        length;
 643         uint32_t        mode;
 644         uint32_t        padding;
 645 };
 646
 647 struct fuse_in_header {
 648         uint32_t        len;
 649         uint32_t        opcode;
 650         uint64_t        unique;
 651         uint64_t        nodeid;
 652         uint32_t        uid;
 653         uint32_t        gid;
 654         uint32_t        pid;
 655         uint32_t        padding;
 656 };
 657
 658 struct fuse_out_header {
 659         uint32_t        len;
 660         int32_t         error;
 661         uint64_t        unique;
 662 };
 663
 664 struct fuse_dirent {
 665         uint64_t        ino;
 666         uint64_t        off;
 667         uint32_t        namelen;
 668         uint32_t        type;
 669         char name[];
 670 };
 671
 672 #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
 673 #define FUSE_DIRENT_ALIGN(x) \
 674         (((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))
 675 #define FUSE_DIRENT_SIZE(d) \
 676         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
 677
 678 struct fuse_direntplus {
 679         struct fuse_entry_out entry_out;
 680         struct fuse_dirent dirent;
 681 };
 682
 683 #define FUSE_NAME_OFFSET_DIRENTPLUS \
 684         offsetof(struct fuse_direntplus, dirent.name)
 685 #define FUSE_DIRENTPLUS_SIZE(d) \
 686         FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
 687
 688 struct fuse_notify_inval_inode_out {
 689         uint64_t        ino;
 690         int64_t         off;
 691         int64_t         len;
 692 };
 693
 694 struct fuse_notify_inval_entry_out {
 695         uint64_t        parent;
 696         uint32_t        namelen;
 697         uint32_t        padding;
 698 };
 699
 700 struct fuse_notify_delete_out {
 701         uint64_t        parent;
 702         uint64_t        child;
 703         uint32_t        namelen;
 704         uint32_t        padding;
 705 };
 706
 707 struct fuse_notify_store_out {
 708         uint64_t        nodeid;
 709         uint64_t        offset;
 710         uint32_t        size;
 711         uint32_t        padding;
 712 };
 713
 714 struct fuse_notify_retrieve_out {
 715         uint64_t        notify_unique;
 716         uint64_t        nodeid;
 717         uint64_t        offset;
 718         uint32_t        size;
 719         uint32_t        padding;
 720 };
 721
 722 /* Matches the size of fuse_write_in */
 723 struct fuse_notify_retrieve_in {
 724         uint64_t        dummy1;
 725         uint64_t        offset;
 726         uint32_t        size;
 727         uint32_t        dummy2;
 728         uint64_t        dummy3;
 729         uint64_t        dummy4;
 730 };
 731
 732 #endif /* _LINUX_FUSE_H */