bsd/sys/fcntl.h

   1 /*
   2  * Copyright (c) 2000-2007 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 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 136 #define O_EVTONLY       0x8000          /* descriptor requested for event notifications only */
 137 #endif
 138
 139 #ifdef KERNEL
 140 #define FWASWRITTEN     0x10000         /* descriptor was written */
 141 #endif
 142
 143 #define O_NOCTTY        0x20000         /* don't assign controlling terminal */
 144
 145 #ifdef KERNEL
 146 #define FNOCACHE        0x40000         /* fcntl(F_NOCACHE, 1) */
 147 #define FNORDAHEAD      0x80000         /* fcntl(F_RDAHEAD, 0) */
 148 #endif
 149
 150 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 151 #define O_DIRECTORY     0x100000
 152 #define O_SYMLINK       0x200000        /* allow open of a symlink */
 153 #endif
 154
 155 #include <sys/_types/_o_dsync.h>
 156
 157 #ifdef KERNEL
 158 #define FNODIRECT       0x800000        /* fcntl(F_NODIRECT, 1) */
 159 #endif
 160
 161 #if __DARWIN_C_LEVEL >= 200809L
 162 #define O_CLOEXEC       0x1000000       /* implicitly set FD_CLOEXEC */
 163 #endif
 164
 165 #ifdef KERNEL
 166 #define FENCRYPTED      0x2000000
 167 #endif
 168
 169 #ifdef KERNEL
 170 #define FSINGLE_WRITER  0x4000000       /* fcntl(F_SINGLE_WRITER, 1) */
 171 #endif
 172
 173 #ifdef KERNEL
 174 #define O_CLOFORK       0x8000000       /* implicitly set FD_CLOFORK */
 175 #endif
 176
 177 /* Data Protection Flags */
 178 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 179 #define O_DP_GETRAWENCRYPTED    0x0001
 180 #endif
 181
 182
 183 #ifdef KERNEL
 184 /* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */
 185 #define FFLAGS(oflags)  ((oflags) + 1)
 186 #define OFLAGS(fflags)  ((fflags) - 1)
 187
 188 /* bits to save after open */
 189 #define FMASK           (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK)
 190 /* bits settable by fcntl(F_SETFL, ...) */
 191 #define FCNTLFLAGS      (FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK)
 192 #endif
 193
 194 /*
 195  * The O_* flags used to have only F* names, which were used in the kernel
 196  * and by fcntl.  We retain the F* names for the kernel f_flags field
 197  * and for backward compatibility for fcntl.
 198  */
 199 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 200 #define FAPPEND         O_APPEND        /* kernel/compat */
 201 #define FASYNC          O_ASYNC         /* kernel/compat */
 202 #define FFSYNC          O_FSYNC         /* kernel */
 203 #define FFDSYNC         O_DSYNC         /* kernel */
 204 #define FNONBLOCK       O_NONBLOCK      /* kernel */
 205 #define FNDELAY         O_NONBLOCK      /* compat */
 206 #define O_NDELAY        O_NONBLOCK      /* compat */
 207 #endif
 208
 209 /*
 210  * Flags used for copyfile(2)
 211  */
 212
 213 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 214 #define CPF_OVERWRITE 1
 215 #define CPF_IGNORE_MODE 2
 216 #define CPF_MASK (CPF_OVERWRITE|CPF_IGNORE_MODE)
 217 #endif
 218
 219 /*
 220  * Constants used for fcntl(2)
 221  */
 222
 223 /* command values */
 224 #define F_DUPFD         0               /* duplicate file descriptor */
 225 #define F_GETFD         1               /* get file descriptor flags */
 226 #define F_SETFD         2               /* set file descriptor flags */
 227 #define F_GETFL         3               /* get file status flags */
 228 #define F_SETFL         4               /* set file status flags */
 229 #define F_GETOWN        5               /* get SIGIO/SIGURG proc/pgrp */
 230 #define F_SETOWN        6               /* set SIGIO/SIGURG proc/pgrp */
 231 #define F_GETLK         7               /* get record locking information */
 232 #define F_SETLK         8               /* set record locking information */
 233 #define F_SETLKW        9               /* F_SETLK; wait if blocked */
 234 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
 235 #define F_SETLKWTIMEOUT 10              /* F_SETLK; wait if blocked, return on timeout */
 236 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
 237 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 238 #define F_FLUSH_DATA    40
 239 #define F_CHKCLEAN      41              /* Used for regression test */
 240 #define F_PREALLOCATE   42              /* Preallocate storage */
 241 #define F_SETSIZE       43              /* Truncate a file without zeroing space */
 242 #define F_RDADVISE      44              /* Issue an advisory read async with no copy to user */
 243 #define F_RDAHEAD       45              /* turn read ahead off/on for this fd */
 244 /*
 245  * 46,47 used to be F_READBOOTSTRAP and F_WRITEBOOTSTRAP
 246  */
 247 #define F_NOCACHE       48              /* turn data caching off/on for this fd */
 248 #define F_LOG2PHYS      49              /* file offset to device offset */
 249 #define F_GETPATH       50              /* return the full path of the fd */
 250 #define F_FULLFSYNC     51              /* fsync + ask the drive to flush to the media */
 251 #define F_PATHPKG_CHECK 52              /* find which component (if any) is a package */
 252 #define F_FREEZE_FS     53              /* "freeze" all fs operations */
 253 #define F_THAW_FS       54              /* "thaw" all fs operations */
 254 #define F_GLOBAL_NOCACHE 55             /* turn data caching off/on (globally) for this file */
 255
 256 #ifdef PRIVATE
 257 #define F_OPENFROM      56              /* SPI: open a file relative to fd (must be a dir) */
 258 #define F_UNLINKFROM    57              /* SPI: open a file relative to fd (must be a dir) */
 259 #define F_CHECK_OPENEVT 58              /* SPI: if a process is marked OPENEVT, or in O_EVTONLY on opens of this vnode */
 260 #endif /* PRIVATE */
 261
 262 #define F_ADDSIGS       59              /* add detached signatures */
 263
 264 #ifdef PRIVATE
 265 /* Deprecated/Removed in 10.9 */
 266 #define F_MARKDEPENDENCY 60             /* this process hosts the device supporting the fs backing this fd */
 267 #endif
 268
 269 #define F_ADDFILESIGS   61              /* add signature from same file (used by dyld for shared libs) */
 270
 271 #define F_NODIRECT      62              /* used in conjunction with F_NOCACHE to indicate that DIRECT, synchonous writes */
 272                                         /* should not be used (i.e. its ok to temporaily create cached pages) */
 273
 274 #define F_GETPROTECTIONCLASS    63              /* Get the protection class of a file from the EA, returns int */
 275 #define F_SETPROTECTIONCLASS    64              /* Set the protection class of a file for the EA, requires int */
 276
 277 #define F_LOG2PHYS_EXT  65              /* file offset to device offset, extended */
 278
 279 #define F_GETLKPID              66              /* get record locking information, per-process */
 280
 281 /* See F_DUPFD_CLOEXEC below for 67 */
 282
 283 #ifdef PRIVATE
 284 #define F_SETSTATICCONTENT              68              /*
 285                                                                                  * indicate to the filesystem/storage driver that the content to be
 286                                                                                  * written is usually static.  a nonzero value enables it, 0 disables it.
 287                                                                                  */
 288 #define F_MOVEDATAEXTENTS       69              /* Swap only the data associated with two files */
 289 #endif
 290
 291 #define F_SETBACKINGSTORE       70      /* Mark the file as being the backing store for another filesystem */
 292 #define F_GETPATH_MTMINFO       71      /* return the full path of the FD, but error in specific mtmd circumstances */
 293
 294 /* 72 is free.  It used to be F_GETENCRYPTEDDATA, which is now removed. */
 295
 296 #define F_SETNOSIGPIPE          73      /* No SIGPIPE generated on EPIPE */
 297 #define F_GETNOSIGPIPE          74      /* Status of SIGPIPE for this fd */
 298
 299 #define F_TRANSCODEKEY          75      /* For some cases, we need to rewrap the key for AKS/MKB */
 300
 301 #define F_SINGLE_WRITER         76      /* file being written to a by single writer... if throttling enabled, writes */
 302                                         /* may be broken into smaller chunks with throttling in between */
 303
 304 #define F_GETPROTECTIONLEVEL    77      /* Get the protection version number for this filesystem */
 305
 306 #define F_FINDSIGS              78      /* Add detached code signatures (used by dyld for shared libs) */
 307
 308 #ifdef PRIVATE
 309 #define F_GETDEFAULTPROTLEVEL   79 /* Get the default protection level for the filesystem */
 310 #define F_MAKECOMPRESSED                80 /* Make the file compressed; truncate & toggle BSD bits */
 311 #define F_SET_GREEDY_MODE               81      /*
 312                                         * indicate to the filesystem/storage driver that the content to be
 313                                         * written should be written in greedy mode for additional speed at
 314                                         * the cost of storage efficiency. A nonzero value enables it, 0 disables it.
 315                                         */
 316 #endif
 317
 318
 319 // FS-specific fcntl()'s numbers begin at 0x00010000 and go up
 320 #define FCNTL_FS_SPECIFIC_BASE  0x00010000
 321
 322 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 323
 324 #if __DARWIN_C_LEVEL >= 200809L
 325 #define F_DUPFD_CLOEXEC         67      /* mark the dup with FD_CLOEXEC */
 326 #endif
 327
 328 /* file descriptor flags (F_GETFD, F_SETFD) */
 329 #define FD_CLOEXEC      1               /* close-on-exec flag */
 330 #if PRIVATE
 331 #define FD_CLOFORK      2               /* close-on-fork flag */
 332 #endif
 333
 334 /* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */
 335 #define F_RDLCK         1               /* shared or read lock */
 336 #define F_UNLCK         2               /* unlock */
 337 #define F_WRLCK         3               /* exclusive or write lock */
 338 #ifdef KERNEL
 339 #define F_WAIT          0x010           /* Wait until lock is granted */
 340 #define F_FLOCK         0x020           /* Use flock(2) semantics for lock */
 341 #define F_POSIX         0x040           /* Use POSIX semantics for lock */
 342 #define F_PROV          0x080           /* Non-coalesced provisional lock */
 343 #define F_WAKE1_SAFE    0x100           /* its safe to only wake one waiter */
 344 #define F_ABORT         0x200           /* lock attempt aborted (force umount) */
 345 #endif
 346
 347 /*
 348  * [XSI] The values used for l_whence shall be defined as described
 349  * in <unistd.h>
 350  */
 351 #include <sys/_types/_seek_set.h>
 352
 353 /*
 354  * [XSI] The symbolic names for file modes for use as values of mode_t
 355  * shall be defined as described in <sys/stat.h>
 356  */
 357 #include <sys/_types/_s_ifmt.h>
 358
 359 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 360 /* allocate flags (F_PREALLOCATE) */
 361
 362 #define F_ALLOCATECONTIG  0x00000002    /* allocate contigious space */
 363 #define F_ALLOCATEALL     0x00000004    /* allocate all requested space or no space at all */
 364
 365 /* Position Modes (fst_posmode) for F_PREALLOCATE */
 366
 367 #define F_PEOFPOSMODE 3                 /* Make it past all of the SEEK pos modes so that */
 368                                         /* we can keep them in sync should we desire */
 369 #define F_VOLPOSMODE    4               /* specify volume starting postion */
 370 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 371
 372 /*
 373  * Advisory file segment locking data type -
 374  * information passed to system by user
 375  */
 376 struct flock {
 377         off_t   l_start;        /* starting offset */
 378         off_t   l_len;          /* len = 0 means until end of file */
 379         pid_t   l_pid;          /* lock owner */
 380         short   l_type;         /* lock type: read/write, etc. */
 381         short   l_whence;       /* type of l_start */
 382 };
 383
 384 #include <sys/_types/_timespec.h>
 385
 386 #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL
 387 /*
 388  * Advisory file segment locking with time out -
 389  * Information passed to system by user for F_SETLKWTIMEOUT
 390  */
 391 struct flocktimeout {
 392         struct flock    fl;             /* flock passed for file locking */
 393         struct timespec timeout;        /* timespec struct for timeout */
 394 };
 395 #endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */
 396
 397 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 398 /*
 399  * advisory file read data type -
 400  * information passed by user to system
 401  */
 402
 403 #ifdef KERNEL
 404 #pragma pack(4) /* prevent structure padding in kernel */
 405 #endif /* KERNEL */
 406
 407 struct radvisory {
 408        off_t   ra_offset;
 409        int     ra_count;
 410 };
 411
 412 #ifdef KERNEL
 413 #pragma pack()
 414 #endif /* KERNEL */
 415
 416 /*
 417  * detached code signatures data type -
 418  * information passed by user to system used by F_ADDSIGS and F_ADDFILESIGS.
 419  * F_ADDFILESIGS is a shortcut for files that contain their own signature and
 420  * doesn't require mapping of the file in order to load the signature.
 421  */
 422 typedef struct fsignatures {
 423         off_t           fs_file_start;
 424         void            *fs_blob_start;
 425         size_t          fs_blob_size;
 426 } fsignatures_t;
 427 #ifdef KERNEL
 428 /* LP64 version of fsignatures.  all pointers
 429  * grow when we're dealing with a 64-bit process.
 430  * WARNING - keep in sync with fsignatures
 431  */
 432
 433 typedef struct user32_fsignatures {
 434         off_t           fs_file_start;
 435         user32_addr_t   fs_blob_start;
 436         user32_size_t   fs_blob_size;
 437 } user32_fsignatures_t;
 438
 439 typedef struct user_fsignatures {
 440         off_t           fs_file_start;  /* offset of Mach-O image in FAT file */
 441         user_addr_t     fs_blob_start;  /* F_ADDSIGS: mem address of signature*/
 442                                         /* F_ADDFILESIGS: offset of signature */
 443                                         /*                in Mach-O image     */
 444         user_size_t     fs_blob_size;   /* size of signature blob             */
 445 } user_fsignatures_t;
 446 #endif /* KERNEL */
 447
 448 /* lock operations for flock(2) */
 449 #define LOCK_SH         0x01            /* shared file lock */
 450 #define LOCK_EX         0x02            /* exclusive file lock */
 451 #define LOCK_NB         0x04            /* don't block when locking */
 452 #define LOCK_UN         0x08            /* unlock file */
 453
 454 /*  fstore_t type used by F_DEALLOCATE and F_PREALLOCATE commands */
 455
 456 typedef struct fstore {
 457         unsigned int fst_flags; /* IN: flags word */
 458         int     fst_posmode;    /* IN: indicates use of offset field */
 459         off_t   fst_offset;     /* IN: start of the region */
 460         off_t   fst_length;     /* IN: size of the region */
 461         off_t   fst_bytesalloc; /* OUT: number of bytes allocated */
 462 } fstore_t;
 463
 464 /* fbootstraptransfer_t used by F_READBOOTSTRAP and F_WRITEBOOTSTRAP commands */
 465
 466 typedef struct fbootstraptransfer {
 467   off_t fbt_offset;             /* IN: offset to start read/write */
 468   size_t fbt_length;          /* IN: number of bytes to transfer */
 469   void *fbt_buffer;             /* IN: buffer to be read/written */
 470 } fbootstraptransfer_t;
 471
 472 #ifdef KERNEL
 473 /* LP64 version of fbootstraptransfer.  all pointers
 474  * grow when we're dealing with a 64-bit process.
 475  * WARNING - keep in sync with fbootstraptransfer
 476  */
 477
 478 typedef struct user32_fbootstraptransfer {
 479   off_t fbt_offset;             /* IN: offset to start read/write */
 480   user32_size_t fbt_length;          /* IN: number of bytes to transfer */
 481   user32_addr_t fbt_buffer;             /* IN: buffer to be read/written */
 482 } user32_fbootstraptransfer_t;
 483
 484 typedef struct user_fbootstraptransfer {
 485   off_t fbt_offset;             /* IN: offset to start read/write */
 486   user_size_t fbt_length;               /* IN: number of bytes to transfer */
 487   user_addr_t fbt_buffer;               /* IN: buffer to be read/written */
 488 } user_fbootstraptransfer_t;
 489
 490 #endif // KERNEL
 491
 492 /*
 493  * For F_LOG2PHYS this information is passed back to user
 494  * Currently only devoffset is returned - that is the VOP_BMAP
 495  * result - the disk device address corresponding to the
 496  * current file offset (likely set with an lseek).
 497  *
 498  * The flags could hold an indication of whether the # of
 499  * contiguous bytes reflects the true extent length on disk,
 500  * or is an advisory value that indicates there is at least that
 501  * many bytes contiguous.  For some filesystems it might be too
 502  * inefficient to provide anything beyond the advisory value.
 503  * Flags and contiguous bytes return values are not yet implemented.
 504  * For them the fcntl will nedd to switch from using BMAP to CMAP
 505  * and a per filesystem type flag will be needed to interpret the
 506  * contiguous bytes count result from CMAP.
 507  *
 508  * F_LOG2PHYS_EXT is a variant of F_LOG2PHYS that uses a passed in
 509  * file offset and length instead of the current file offset.
 510  * F_LOG2PHYS_EXT operates on the same structure as F_LOG2PHYS, but
 511  * treats it as an in/out.
 512  */
 513 #pragma pack(4)
 514
 515 struct log2phys {
 516         unsigned int    l2p_flags;       /* unused so far */
 517         off_t           l2p_contigbytes; /* F_LOG2PHYS:     unused so far */
 518                                          /* F_LOG2PHYS_EXT: IN:  number of bytes to be queried */
 519                                          /*                 OUT: number of contiguous bytes at this position */
 520         off_t           l2p_devoffset;   /* F_LOG2PHYS:     OUT: bytes into device */
 521                                          /* F_LOG2PHYS_EXT: IN:  bytes into file */
 522                                          /*                 OUT: bytes into device */
 523 };
 524
 525 #pragma pack()
 526
 527 #define O_POPUP    0x80000000   /* force window to popup on open */
 528 #define O_ALERT    0x20000000   /* small, clean popup window */
 529
 530 #ifdef PRIVATE
 531 /*
 532  * SPI: Argument data for F_OPENFROM
 533  */
 534 struct fopenfrom {
 535         unsigned int    o_flags;        /* same as open(2) */
 536         mode_t          o_mode;         /* same as open(2) */
 537         char *          o_pathname;     /* relative pathname */
 538 };
 539
 540 #ifdef KERNEL
 541 /*
 542  * LP64 version of fopenfrom.  Memory pointers
 543  * grow when we're dealing with a 64-bit process.
 544  *
 545  * WARNING - keep in sync with fopenfrom (above)
 546  */
 547 struct user32_fopenfrom {
 548         unsigned int    o_flags;
 549         mode_t          o_mode;
 550         user32_addr_t   o_pathname;
 551 };
 552
 553 struct user_fopenfrom {
 554         unsigned int    o_flags;
 555         mode_t          o_mode;
 556         user_addr_t     o_pathname;
 557 };
 558 #endif /* KERNEL */
 559
 560 #endif /* PRIVATE */
 561
 562 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 563
 564 #ifndef KERNEL
 565
 566 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 567
 568 #include <sys/_types/_filesec_t.h>
 569
 570 typedef enum {
 571         FILESEC_OWNER = 1,
 572         FILESEC_GROUP = 2,
 573         FILESEC_UUID = 3,
 574         FILESEC_MODE = 4,
 575         FILESEC_ACL = 5,
 576         FILESEC_GRPUUID = 6,
 577
 578 /* XXX these are private to the implementation */
 579         FILESEC_ACL_RAW = 100,
 580         FILESEC_ACL_ALLOCSIZE = 101
 581 } filesec_property_t;
 582
 583 /* XXX backwards compatibility */
 584 #define FILESEC_GUID FILESEC_UUID
 585 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 586
 587 __BEGIN_DECLS
 588 int     open(const char *, int, ...) __DARWIN_ALIAS_C(open);
 589 int     creat(const char *, mode_t) __DARWIN_ALIAS_C(creat);
 590 int     fcntl(int, int, ...) __DARWIN_ALIAS_C(fcntl);
 591 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 592
 593 #ifdef PRIVATE
 594 /*
 595  * These definitions are retained temporarily for compatibility.
 596  * If you want to use fileports, please use
 597  *      #include <sys/fileport.h>
 598  * or
 599  *      #include <System/sys/fileport.h>
 600  */
 601 #ifndef _FILEPORT_T
 602 #define _FILEPORT_T
 603 typedef __darwin_mach_port_t fileport_t;
 604 #define FILEPORT_NULL ((fileport_t)0)
 605 #endif /* _FILEPORT_T */
 606
 607 int     fileport_makeport(int, fileport_t*);
 608 int     fileport_makefd(fileport_t);
 609 #endif /* PRIVATE */
 610 int     openx_np(const char *, int, filesec_t);
 611 /* data-protected non-portable open(2) */
 612 int open_dprotected_np ( const char *, int, int, int, ...);
 613 int     flock(int, int);
 614 filesec_t filesec_init(void);
 615 filesec_t filesec_dup(filesec_t);
 616 void    filesec_free(filesec_t);
 617 int     filesec_get_property(filesec_t, filesec_property_t, void *);
 618 int     filesec_query_property(filesec_t, filesec_property_t, int *);
 619 int     filesec_set_property(filesec_t, filesec_property_t, const void *);
 620 int     filesec_unset_property(filesec_t, filesec_property_t) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2);
 621 #define _FILESEC_UNSET_PROPERTY ((void *)0)
 622 #define _FILESEC_REMOVE_ACL     ((void *)1)
 623 #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
 624 __END_DECLS
 625 #endif
 626
 627 #endif /* !_SYS_FCNTL_H_ */