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