1/* 2 * Copyright (c) 2000-2013 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ 29/*- 30 * Copyright (c) 1983, 1990, 1993 31 * The Regents of the University of California. All rights reserved. 32 * (c) UNIX System Laboratories, Inc. 33 * All or some portions of this file are derived from material licensed 34 * to the University of California by American Telephone and Telegraph 35 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 36 * the permission of UNIX System Laboratories, Inc. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)fcntl.h 8.3 (Berkeley) 1/21/94 67 */ 68 69 70#ifndef _SYS_FCNTL_H_ 71#define _SYS_FCNTL_H_ 72 73/* 74 * This file includes the definitions for open and fcntl 75 * described by POSIX for <fcntl.h>; it also includes 76 * related kernel definitions. 77 */ 78#include <sys/_types.h> 79#include <sys/cdefs.h> 80#ifndef KERNEL 81#include <Availability.h> 82#endif 83 84/* We should not be exporting size_t here. Temporary for gcc bootstrapping. */ 85#include <sys/_types/_size_t.h> 86#include <sys/_types/_mode_t.h> 87#include <sys/_types/_off_t.h> 88#include <sys/_types/_pid_t.h> 89 90/* 91 * File status flags: these are used by open(2), fcntl(2). 92 * They are also used (indirectly) in the kernel file structure f_flags, 93 * which is a superset of the open/fcntl flags. Open flags and f_flags 94 * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags). 95 * Open/fcntl flags begin with O_; kernel-internal flags begin with F. 96 */ 97/* open-only flags */ 98#define O_RDONLY 0x0000 /* open for reading only */ 99#define O_WRONLY 0x0001 /* open for writing only */ 100#define O_RDWR 0x0002 /* open for reading and writing */ 101#define O_ACCMODE 0x0003 /* mask for above modes */ 102 103/* 104 * Kernel encoding of open mode; separate read and write bits that are 105 * independently testable: 1 greater than the above. 106 * 107 * XXX 108 * FREAD and FWRITE are excluded from the #ifdef KERNEL so that TIOCFLUSH, 109 * which was documented to use FREAD/FWRITE, continues to work. 110 */ 111#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 112#define FREAD 0x0001 113#define FWRITE 0x0002 114#endif 115#define O_NONBLOCK 0x0004 /* no delay */ 116#define O_APPEND 0x0008 /* set append mode */ 117 118#include <sys/_types/_o_sync.h> 119 120#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 121#define O_SHLOCK 0x0010 /* open with shared file lock */ 122#define O_EXLOCK 0x0020 /* open with exclusive file lock */ 123#define O_ASYNC 0x0040 /* signal pgrp when data ready */ 124#define O_FSYNC O_SYNC /* source compatibility: do not use */ 125#define O_NOFOLLOW 0x0100 /* don't follow symlinks */ 126#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 127#define O_CREAT 0x0200 /* create if nonexistant */ 128#define O_TRUNC 0x0400 /* truncate to zero length */ 129#define O_EXCL 0x0800 /* error if already exists */ 130#ifdef KERNEL 131#define FMARK 0x1000 /* mark during gc() */ 132#define FDEFER 0x2000 /* defer for next gc pass */ 133#define FHASLOCK 0x4000 /* descriptor holds advisory lock */ 134#endif 135 136#if __DARWIN_C_LEVEL >= 200809L 137/* 138 * Descriptor value for the current working directory 139 */ 140#define AT_FDCWD -2 141 142/* 143 * Flags for the at functions 144 */ 145#define AT_EACCESS 0x0010 /* Use effective ids in access check */ 146#define AT_SYMLINK_NOFOLLOW 0x0020 /* Act on the symlink itself not the target */ 147#define AT_SYMLINK_FOLLOW 0x0040 /* Act on target of symlink */ 148#define AT_REMOVEDIR 0x0080 /* Path refers to directory */ 149#endif 150 151#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 152#define O_EVTONLY 0x8000 /* descriptor requested for event notifications only */ 153#endif 154 155#ifdef KERNEL 156#define FWASWRITTEN 0x10000 /* descriptor was written */ 157#endif 158 159#define O_NOCTTY 0x20000 /* don't assign controlling terminal */ 160 161#ifdef KERNEL 162#define FNOCACHE 0x40000 /* fcntl(F_NOCACHE, 1) */ 163#define FNORDAHEAD 0x80000 /* fcntl(F_RDAHEAD, 0) */ 164#endif 165 166#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 167#define O_DIRECTORY 0x100000 168#define O_SYMLINK 0x200000 /* allow open of a symlink */ 169#endif 170 171#include <sys/_types/_o_dsync.h> 172 173#ifdef KERNEL 174#define FNODIRECT 0x800000 /* fcntl(F_NODIRECT, 1) */ 175#endif 176 177#if __DARWIN_C_LEVEL >= 200809L 178#define O_CLOEXEC 0x1000000 /* implicitly set FD_CLOEXEC */ 179#endif 180 181#ifdef KERNEL 182#define FENCRYPTED 0x2000000 183#endif 184 185#ifdef KERNEL 186#define FSINGLE_WRITER 0x4000000 /* fcntl(F_SINGLE_WRITER, 1) */ 187#endif 188 189#ifdef KERNEL 190#define O_CLOFORK 0x8000000 /* implicitly set FD_CLOFORK */ 191#endif 192 193/* Data Protection Flags */ 194#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 195#define O_DP_GETRAWENCRYPTED 0x0001 196#endif 197 198 199#ifdef KERNEL 200/* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */ 201#define FFLAGS(oflags) ((oflags) + 1) 202#define OFLAGS(fflags) ((fflags) - 1) 203 204/* bits to save after open */ 205#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK) 206/* bits settable by fcntl(F_SETFL, ...) */ 207#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK) 208#endif 209 210/* 211 * The O_* flags used to have only F* names, which were used in the kernel 212 * and by fcntl. We retain the F* names for the kernel f_flags field 213 * and for backward compatibility for fcntl. 214 */ 215#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 216#define FAPPEND O_APPEND /* kernel/compat */ 217#define FASYNC O_ASYNC /* kernel/compat */ 218#define FFSYNC O_FSYNC /* kernel */ 219#define FFDSYNC O_DSYNC /* kernel */ 220#define FNONBLOCK O_NONBLOCK /* kernel */ 221#define FNDELAY O_NONBLOCK /* compat */ 222#define O_NDELAY O_NONBLOCK /* compat */ 223#endif 224 225/* 226 * Flags used for copyfile(2) 227 */ 228 229#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 230#define CPF_OVERWRITE 1 231#define CPF_IGNORE_MODE 2 232#define CPF_MASK (CPF_OVERWRITE|CPF_IGNORE_MODE) 233#endif 234 235/* 236 * Constants used for fcntl(2) 237 */ 238 239/* command values */ 240#define F_DUPFD 0 /* duplicate file descriptor */ 241#define F_GETFD 1 /* get file descriptor flags */ 242#define F_SETFD 2 /* set file descriptor flags */ 243#define F_GETFL 3 /* get file status flags */ 244#define F_SETFL 4 /* set file status flags */ 245#define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */ 246#define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */ 247#define F_GETLK 7 /* get record locking information */ 248#define F_SETLK 8 /* set record locking information */ 249#define F_SETLKW 9 /* F_SETLK; wait if blocked */ 250#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 251#define F_SETLKWTIMEOUT 10 /* F_SETLK; wait if blocked, return on timeout */ 252#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 253#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 254#define F_FLUSH_DATA 40 255#define F_CHKCLEAN 41 /* Used for regression test */ 256#define F_PREALLOCATE 42 /* Preallocate storage */ 257#define F_SETSIZE 43 /* Truncate a file without zeroing space */ 258#define F_RDADVISE 44 /* Issue an advisory read async with no copy to user */ 259#define F_RDAHEAD 45 /* turn read ahead off/on for this fd */ 260/* 261 * 46,47 used to be F_READBOOTSTRAP and F_WRITEBOOTSTRAP 262 */ 263#define F_NOCACHE 48 /* turn data caching off/on for this fd */ 264#define F_LOG2PHYS 49 /* file offset to device offset */ 265#define F_GETPATH 50 /* return the full path of the fd */ 266#define F_FULLFSYNC 51 /* fsync + ask the drive to flush to the media */ 267#define F_PATHPKG_CHECK 52 /* find which component (if any) is a package */ 268#define F_FREEZE_FS 53 /* "freeze" all fs operations */ 269#define F_THAW_FS 54 /* "thaw" all fs operations */ 270#define F_GLOBAL_NOCACHE 55 /* turn data caching off/on (globally) for this file */ 271 272#ifdef PRIVATE 273#define F_OPENFROM 56 /* SPI: open a file relative to fd (must be a dir) */ 274#define F_UNLINKFROM 57 /* SPI: open a file relative to fd (must be a dir) */ 275#define F_CHECK_OPENEVT 58 /* SPI: if a process is marked OPENEVT, or in O_EVTONLY on opens of this vnode */ 276#endif /* PRIVATE */ 277 278#define F_ADDSIGS 59 /* add detached signatures */ 279 280#ifdef PRIVATE 281/* Deprecated/Removed in 10.9 */ 282#define F_MARKDEPENDENCY 60 /* this process hosts the device supporting the fs backing this fd */ 283#endif 284 285#define F_ADDFILESIGS 61 /* add signature from same file (used by dyld for shared libs) */ 286 287#define F_NODIRECT 62 /* used in conjunction with F_NOCACHE to indicate that DIRECT, synchonous writes */ 288 /* should not be used (i.e. its ok to temporaily create cached pages) */ 289 290#define F_GETPROTECTIONCLASS 63 /* Get the protection class of a file from the EA, returns int */ 291#define F_SETPROTECTIONCLASS 64 /* Set the protection class of a file for the EA, requires int */ 292 293#define F_LOG2PHYS_EXT 65 /* file offset to device offset, extended */ 294 295#define F_GETLKPID 66 /* get record locking information, per-process */ 296 297/* See F_DUPFD_CLOEXEC below for 67 */ 298 299#ifdef PRIVATE 300#define F_SETSTATICCONTENT 68 /* 301 * indicate to the filesystem/storage driver that the content to be 302 * written is usually static. a nonzero value enables it, 0 disables it. 303 */ 304#define F_MOVEDATAEXTENTS 69 /* Swap only the data associated with two files */ 305#endif 306 307#define F_SETBACKINGSTORE 70 /* Mark the file as being the backing store for another filesystem */ 308#define F_GETPATH_MTMINFO 71 /* return the full path of the FD, but error in specific mtmd circumstances */ 309 310#define F_GETCODEDIR 72 /* Returns the code directory, with associated hashes, to the caller */ 311 312#define F_SETNOSIGPIPE 73 /* No SIGPIPE generated on EPIPE */ 313#define F_GETNOSIGPIPE 74 /* Status of SIGPIPE for this fd */ 314 315#define F_TRANSCODEKEY 75 /* For some cases, we need to rewrap the key for AKS/MKB */ 316 317#define F_SINGLE_WRITER 76 /* file being written to a by single writer... if throttling enabled, writes */ 318 /* may be broken into smaller chunks with throttling in between */ 319 320#define F_GETPROTECTIONLEVEL 77 /* Get the protection version number for this filesystem */ 321 322#define F_FINDSIGS 78 /* Add detached code signatures (used by dyld for shared libs) */ 323 324#ifdef PRIVATE 325#define F_GETDEFAULTPROTLEVEL 79 /* Get the default protection level for the filesystem */ 326#define F_MAKECOMPRESSED 80 /* Make the file compressed; truncate & toggle BSD bits */ 327#define F_SET_GREEDY_MODE 81 /* 328 * indicate to the filesystem/storage driver that the content to be 329 * written should be written in greedy mode for additional speed at 330 * the cost of storage efficiency. A nonzero value enables it, 0 disables it. 331 */ 332 333#define F_SETIOTYPE 82 /* 334 * Use parameters to describe content being written to the FD. See 335 * flag definitions below for argument bits. 336 */ 337#endif 338 339 340// FS-specific fcntl()'s numbers begin at 0x00010000 and go up 341#define FCNTL_FS_SPECIFIC_BASE 0x00010000 342 343#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 344 345#if __DARWIN_C_LEVEL >= 200809L 346#define F_DUPFD_CLOEXEC 67 /* mark the dup with FD_CLOEXEC */ 347#endif 348 349/* file descriptor flags (F_GETFD, F_SETFD) */ 350#define FD_CLOEXEC 1 /* close-on-exec flag */ 351#if PRIVATE 352#define FD_CLOFORK 2 /* close-on-fork flag */ 353#endif 354 355/* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */ 356#define F_RDLCK 1 /* shared or read lock */ 357#define F_UNLCK 2 /* unlock */ 358#define F_WRLCK 3 /* exclusive or write lock */ 359#ifdef KERNEL 360#define F_WAIT 0x010 /* Wait until lock is granted */ 361#define F_FLOCK 0x020 /* Use flock(2) semantics for lock */ 362#define F_POSIX 0x040 /* Use POSIX semantics for lock */ 363#define F_PROV 0x080 /* Non-coalesced provisional lock */ 364#define F_WAKE1_SAFE 0x100 /* its safe to only wake one waiter */ 365#define F_ABORT 0x200 /* lock attempt aborted (force umount) */ 366#endif 367 368#if PRIVATE 369/* 370 * ISOCHRONOUS attempts to sustain a minimum platform-dependent throughput 371 * for the duration of the I/O delivered to the driver. 372 */ 373#define F_IOTYPE_ISOCHRONOUS 0x0001 374#endif 375 376/* 377 * [XSI] The values used for l_whence shall be defined as described 378 * in <unistd.h> 379 */ 380#include <sys/_types/_seek_set.h> 381 382/* 383 * [XSI] The symbolic names for file modes for use as values of mode_t 384 * shall be defined as described in <sys/stat.h> 385 */ 386#include <sys/_types/_s_ifmt.h> 387 388#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 389/* allocate flags (F_PREALLOCATE) */ 390 391#define F_ALLOCATECONTIG 0x00000002 /* allocate contigious space */ 392#define F_ALLOCATEALL 0x00000004 /* allocate all requested space or no space at all */ 393 394/* Position Modes (fst_posmode) for F_PREALLOCATE */ 395 396#define F_PEOFPOSMODE 3 /* Make it past all of the SEEK pos modes so that */ 397 /* we can keep them in sync should we desire */ 398#define F_VOLPOSMODE 4 /* specify volume starting postion */ 399#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 400 401/* 402 * Advisory file segment locking data type - 403 * information passed to system by user 404 */ 405struct flock { 406 off_t l_start; /* starting offset */ 407 off_t l_len; /* len = 0 means until end of file */ 408 pid_t l_pid; /* lock owner */ 409 short l_type; /* lock type: read/write, etc. */ 410 short l_whence; /* type of l_start */ 411}; 412 413#include <sys/_types/_timespec.h> 414 415#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL 416/* 417 * Advisory file segment locking with time out - 418 * Information passed to system by user for F_SETLKWTIMEOUT 419 */ 420struct flocktimeout { 421 struct flock fl; /* flock passed for file locking */ 422 struct timespec timeout; /* timespec struct for timeout */ 423}; 424#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ 425 426#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 427/* 428 * advisory file read data type - 429 * information passed by user to system 430 */ 431 432#ifdef KERNEL 433#pragma pack(4) /* prevent structure padding in kernel */ 434#endif /* KERNEL */ 435 436struct radvisory { 437 off_t ra_offset; 438 int ra_count; 439}; 440 441#ifdef KERNEL 442#pragma pack() 443#endif /* KERNEL */ 444 445#ifndef KERNEL 446/** Information the user passes in to get the codeblobs out of the kernel */ 447typedef struct fcodeblobs { 448 void *f_cd_hash; 449 size_t f_hash_size; 450 void *f_cd_buffer; 451 size_t f_cd_size; 452 unsigned int *f_out_size; 453 int f_arch; 454 int __padding; 455} fcodeblobs_t; 456#endif /* KERNEL */ 457 458#ifdef KERNEL 459typedef struct user32_fcodeblobs { 460 user32_addr_t f_cd_hash; 461 user32_size_t f_hash_size; 462 user32_addr_t f_cd_buffer; 463 user32_size_t f_cd_size; 464 user32_addr_t f_out_size; 465 int f_arch; 466} user32_fcodeblobs_t; 467 468/* LP64 version of fcodeblobs */ 469typedef struct user64_fcodeblobs { 470 user64_addr_t f_cd_hash; 471 user64_size_t f_hash_size; 472 user64_addr_t f_cd_buffer; 473 user64_size_t f_cd_size; 474 user64_addr_t f_out_size; 475 int f_arch; 476 int __padding; 477} user64_fcodeblobs_t; 478 479/* kernel version of fcodeblobs */ 480typedef struct user_fcodeblobs { 481 user_addr_t f_cd_hash; 482 user_size_t f_hash_size; 483 user_addr_t f_cd_buffer; 484 user_size_t f_cd_size; 485 user_addr_t f_out_size; 486 int f_arch; 487} user_fcodeblobs_t; 488#endif /* KERNEL */ 489 490/* 491 * detached code signatures data type - 492 * information passed by user to system used by F_ADDSIGS and F_ADDFILESIGS. 493 * F_ADDFILESIGS is a shortcut for files that contain their own signature and 494 * doesn't require mapping of the file in order to load the signature. 495 */ 496typedef struct fsignatures { 497 off_t fs_file_start; 498 void *fs_blob_start; 499 size_t fs_blob_size; 500} fsignatures_t; 501#ifdef KERNEL 502/* LP64 version of fsignatures. all pointers 503 * grow when we're dealing with a 64-bit process. 504 * WARNING - keep in sync with fsignatures 505 */ 506 507typedef struct user32_fsignatures { 508 off_t fs_file_start; 509 user32_addr_t fs_blob_start; 510 user32_size_t fs_blob_size; 511} user32_fsignatures_t; 512 513typedef struct user_fsignatures { 514 off_t fs_file_start; /* offset of Mach-O image in FAT file */ 515 user_addr_t fs_blob_start; /* F_ADDSIGS: mem address of signature*/ 516 /* F_ADDFILESIGS: offset of signature */ 517 /* in Mach-O image */ 518 user_size_t fs_blob_size; /* size of signature blob */ 519} user_fsignatures_t; 520#endif /* KERNEL */ 521 522/* lock operations for flock(2) */ 523#define LOCK_SH 0x01 /* shared file lock */ 524#define LOCK_EX 0x02 /* exclusive file lock */ 525#define LOCK_NB 0x04 /* don't block when locking */ 526#define LOCK_UN 0x08 /* unlock file */ 527 528/* fstore_t type used by F_DEALLOCATE and F_PREALLOCATE commands */ 529 530typedef struct fstore { 531 unsigned int fst_flags; /* IN: flags word */ 532 int fst_posmode; /* IN: indicates use of offset field */ 533 off_t fst_offset; /* IN: start of the region */ 534 off_t fst_length; /* IN: size of the region */ 535 off_t fst_bytesalloc; /* OUT: number of bytes allocated */ 536} fstore_t; 537 538/* fbootstraptransfer_t used by F_READBOOTSTRAP and F_WRITEBOOTSTRAP commands */ 539 540typedef struct fbootstraptransfer { 541 off_t fbt_offset; /* IN: offset to start read/write */ 542 size_t fbt_length; /* IN: number of bytes to transfer */ 543 void *fbt_buffer; /* IN: buffer to be read/written */ 544} fbootstraptransfer_t; 545 546#ifdef KERNEL 547/* LP64 version of fbootstraptransfer. all pointers 548 * grow when we're dealing with a 64-bit process. 549 * WARNING - keep in sync with fbootstraptransfer 550 */ 551 552typedef struct user32_fbootstraptransfer { 553 off_t fbt_offset; /* IN: offset to start read/write */ 554 user32_size_t fbt_length; /* IN: number of bytes to transfer */ 555 user32_addr_t fbt_buffer; /* IN: buffer to be read/written */ 556} user32_fbootstraptransfer_t; 557 558typedef struct user_fbootstraptransfer { 559 off_t fbt_offset; /* IN: offset to start read/write */ 560 user_size_t fbt_length; /* IN: number of bytes to transfer */ 561 user_addr_t fbt_buffer; /* IN: buffer to be read/written */ 562} user_fbootstraptransfer_t; 563 564#endif // KERNEL 565 566/* 567 * For F_LOG2PHYS this information is passed back to user 568 * Currently only devoffset is returned - that is the VOP_BMAP 569 * result - the disk device address corresponding to the 570 * current file offset (likely set with an lseek). 571 * 572 * The flags could hold an indication of whether the # of 573 * contiguous bytes reflects the true extent length on disk, 574 * or is an advisory value that indicates there is at least that 575 * many bytes contiguous. For some filesystems it might be too 576 * inefficient to provide anything beyond the advisory value. 577 * Flags and contiguous bytes return values are not yet implemented. 578 * For them the fcntl will nedd to switch from using BMAP to CMAP 579 * and a per filesystem type flag will be needed to interpret the 580 * contiguous bytes count result from CMAP. 581 * 582 * F_LOG2PHYS_EXT is a variant of F_LOG2PHYS that uses a passed in 583 * file offset and length instead of the current file offset. 584 * F_LOG2PHYS_EXT operates on the same structure as F_LOG2PHYS, but 585 * treats it as an in/out. 586 */ 587#pragma pack(4) 588 589struct log2phys { 590 unsigned int l2p_flags; /* unused so far */ 591 off_t l2p_contigbytes; /* F_LOG2PHYS: unused so far */ 592 /* F_LOG2PHYS_EXT: IN: number of bytes to be queried */ 593 /* OUT: number of contiguous bytes at this position */ 594 off_t l2p_devoffset; /* F_LOG2PHYS: OUT: bytes into device */ 595 /* F_LOG2PHYS_EXT: IN: bytes into file */ 596 /* OUT: bytes into device */ 597}; 598 599#pragma pack() 600 601#define O_POPUP 0x80000000 /* force window to popup on open */ 602#define O_ALERT 0x20000000 /* small, clean popup window */ 603 604#ifdef PRIVATE 605/* 606 * SPI: Argument data for F_OPENFROM 607 */ 608struct fopenfrom { 609 unsigned int o_flags; /* same as open(2) */ 610 mode_t o_mode; /* same as open(2) */ 611 char * o_pathname; /* relative pathname */ 612}; 613 614#ifdef KERNEL 615/* 616 * LP64 version of fopenfrom. Memory pointers 617 * grow when we're dealing with a 64-bit process. 618 * 619 * WARNING - keep in sync with fopenfrom (above) 620 */ 621struct user32_fopenfrom { 622 unsigned int o_flags; 623 mode_t o_mode; 624 user32_addr_t o_pathname; 625}; 626 627struct user_fopenfrom { 628 unsigned int o_flags; 629 mode_t o_mode; 630 user_addr_t o_pathname; 631}; 632#endif /* KERNEL */ 633 634#endif /* PRIVATE */ 635 636#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 637 638#ifndef KERNEL 639 640#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 641 642#include <sys/_types/_filesec_t.h> 643 644typedef enum { 645 FILESEC_OWNER = 1, 646 FILESEC_GROUP = 2, 647 FILESEC_UUID = 3, 648 FILESEC_MODE = 4, 649 FILESEC_ACL = 5, 650 FILESEC_GRPUUID = 6, 651 652/* XXX these are private to the implementation */ 653 FILESEC_ACL_RAW = 100, 654 FILESEC_ACL_ALLOCSIZE = 101 655} filesec_property_t; 656 657/* XXX backwards compatibility */ 658#define FILESEC_GUID FILESEC_UUID 659#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ 660 661__BEGIN_DECLS 662int open(const char *, int, ...) __DARWIN_ALIAS_C(open); 663#if __DARWIN_C_LEVEL >= 200809L 664int openat(int, const char *, int, ...) __DARWIN_NOCANCEL(openat) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0); 665#endif 666int creat(const char *, mode_t) __DARWIN_ALIAS_C(creat); 667int fcntl(int, int, ...) __DARWIN_ALIAS_C(fcntl); 668#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) 669 670#ifdef PRIVATE 671/* 672 * These definitions are retained temporarily for compatibility. 673 * If you want to use fileports, please use 674 * #include <sys/fileport.h> 675 * or 676 * #include <System/sys/fileport.h> 677 */ 678#ifndef _FILEPORT_T 679#define _FILEPORT_T 680typedef __darwin_mach_port_t fileport_t; 681#define FILEPORT_NULL ((fileport_t)0) 682#endif /* _FILEPORT_T */ 683 684int fileport_makeport(int, fileport_t*); 685int fileport_makefd(fileport_t); 686#endif /* PRIVATE */ 687int openx_np(const char *, int, filesec_t); 688/* 689 * data-protected non-portable open(2) : 690 int open_dprotected_np(user_addr_t path, int flags, int class, int dpflags, int mode) 691 */ 692int open_dprotected_np ( const char *, int, int, int, ...); 693int flock(int, int); 694filesec_t filesec_init(void); 695filesec_t filesec_dup(filesec_t); 696void filesec_free(filesec_t); 697int filesec_get_property(filesec_t, filesec_property_t, void *); 698int filesec_query_property(filesec_t, filesec_property_t, int *); 699int filesec_set_property(filesec_t, filesec_property_t, const void *); 700int filesec_unset_property(filesec_t, filesec_property_t) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); 701#define _FILESEC_UNSET_PROPERTY ((void *)0) 702#define _FILESEC_REMOVE_ACL ((void *)1) 703#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ 704__END_DECLS 705#endif 706 707#endif /* !_SYS_FCNTL_H_ */ 708