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