X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4452a7af2eac33dbad800bcc91f2399d62c18f53..ebb1b9f42b62218f29061826217bb0f71cd375a6:/bsd/sys/fcntl.h diff --git a/bsd/sys/fcntl.h b/bsd/sys/fcntl.h index 07499ad42..f6cbe9d5a 100644 --- a/bsd/sys/fcntl.h +++ b/bsd/sys/fcntl.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2007 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -77,6 +77,9 @@ */ #include #include +#ifndef KERNEL +#include +#endif /* We should not be exporting size_t here. Temporary for gcc bootstrapping. */ #ifndef _SIZE_T @@ -120,20 +123,22 @@ typedef __darwin_pid_t pid_t; * FREAD and FWRITE are excluded from the #ifdef KERNEL so that TIOCFLUSH, * which was documented to use FREAD/FWRITE, continues to work. */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define FREAD 0x0001 #define FWRITE 0x0002 #endif #define O_NONBLOCK 0x0004 /* no delay */ #define O_APPEND 0x0008 /* set append mode */ -#define O_SYNC 0x0080 /* synchronous writes */ -#ifndef _POSIX_C_SOURCE +#ifndef O_SYNC /* allow simultaneous inclusion of */ +#define O_SYNC 0x0080 /* synch I/O file integrity */ +#endif +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define O_SHLOCK 0x0010 /* open with shared file lock */ #define O_EXLOCK 0x0020 /* open with exclusive file lock */ #define O_ASYNC 0x0040 /* signal pgrp when data ready */ #define O_FSYNC O_SYNC /* source compatibility: do not use */ #define O_NOFOLLOW 0x0100 /* don't follow symlinks */ -#endif /* _POSIX_C_SOURCE */ +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ #define O_CREAT 0x0200 /* create if nonexistant */ #define O_TRUNC 0x0400 /* truncate to zero length */ #define O_EXCL 0x0800 /* error if already exists */ @@ -142,7 +147,7 @@ typedef __darwin_pid_t pid_t; #define FDEFER 0x2000 /* defer for next gc pass */ #define FHASLOCK 0x4000 /* descriptor holds advisory lock */ #endif -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define O_EVTONLY 0x8000 /* descriptor requested for event notifications only */ #endif @@ -150,13 +155,29 @@ typedef __darwin_pid_t pid_t; #define FWASWRITTEN 0x10000 /* descriptor was written */ #endif -#ifndef _POSIX_C_SOURCE -#define O_DIRECTORY 0x100000 +#define O_NOCTTY 0x20000 /* don't assign controlling terminal */ + +#ifdef KERNEL +#define FNOCACHE 0x40000 /* fcntl(F_NOCACHE, 1) */ +#define FNORDAHEAD 0x80000 /* fcntl(F_RDAHEAD, 0) */ +#endif + +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define O_DIRECTORY 0x100000 +#define O_SYMLINK 0x200000 /* allow open of a symlink */ +#endif + +#ifndef O_DSYNC /* allow simultaneous inclusion of */ +#define O_DSYNC 0x400000 /* synch I/O data integrity */ +#endif + +#ifdef KERNEL +#define FNODIRECT 0x800000 /* fcntl(F_NODIRECT, 1) */ #endif -/* defined by POSIX 1003.1; BSD default, so no bit required */ -#define O_NOCTTY 0 /* don't assign controlling terminal */ -//#define O_SYNC /* ??? POSIX: Write according to synchronized I/O file integrity completion */ +#if __DARWIN_C_LEVEL >= 200809L +#define O_CLOEXEC 0x1000000 /* implicitly set FD_CLOEXEC */ +#endif #ifdef KERNEL /* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */ @@ -164,9 +185,9 @@ typedef __darwin_pid_t pid_t; #define OFLAGS(fflags) ((fflags) - 1) /* bits to save after open */ -#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FNONBLOCK) +#define FMASK (FREAD|FWRITE|FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK) /* bits settable by fcntl(F_SETFL, ...) */ -#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FNONBLOCK) +#define FCNTLFLAGS (FAPPEND|FASYNC|FFSYNC|FFDSYNC|FNONBLOCK) #endif /* @@ -174,10 +195,11 @@ typedef __darwin_pid_t pid_t; * and by fcntl. We retain the F* names for the kernel f_flags field * and for backward compatibility for fcntl. */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define FAPPEND O_APPEND /* kernel/compat */ #define FASYNC O_ASYNC /* kernel/compat */ #define FFSYNC O_FSYNC /* kernel */ +#define FFDSYNC O_DSYNC /* kernel */ #define FNONBLOCK O_NONBLOCK /* kernel */ #define FNDELAY O_NONBLOCK /* compat */ #define O_NDELAY O_NONBLOCK /* compat */ @@ -187,7 +209,7 @@ typedef __darwin_pid_t pid_t; * Flags used for copyfile(2) */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define CPF_OVERWRITE 1 #define CPF_IGNORE_MODE 2 #define CPF_MASK (CPF_OVERWRITE|CPF_IGNORE_MODE) @@ -208,26 +230,64 @@ typedef __darwin_pid_t pid_t; #define F_GETLK 7 /* get record locking information */ #define F_SETLK 8 /* set record locking information */ #define F_SETLKW 9 /* F_SETLK; wait if blocked */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define F_FLUSH_DATA 40 #define F_CHKCLEAN 41 /* Used for regression test */ #define F_PREALLOCATE 42 /* Preallocate storage */ #define F_SETSIZE 43 /* Truncate a file without zeroing space */ #define F_RDADVISE 44 /* Issue an advisory read async with no copy to user */ -#define F_RDAHEAD 45 /* turn read ahead off/on */ +#define F_RDAHEAD 45 /* turn read ahead off/on for this fd */ #define F_READBOOTSTRAP 46 /* Read bootstrap from disk */ #define F_WRITEBOOTSTRAP 47 /* Write bootstrap on disk */ -#define F_NOCACHE 48 /* turning data caching off/on */ +#define F_NOCACHE 48 /* turn data caching off/on for this fd */ #define F_LOG2PHYS 49 /* file offset to device offset */ #define F_GETPATH 50 /* return the full path of the fd */ #define F_FULLFSYNC 51 /* fsync + ask the drive to flush to the media */ #define F_PATHPKG_CHECK 52 /* find which component (if any) is a package */ #define F_FREEZE_FS 53 /* "freeze" all fs operations */ #define F_THAW_FS 54 /* "thaw" all fs operations */ -#define F_GLOBAL_NOCACHE 55 /* turn data caching off/on (globally) for this file */ +#define F_GLOBAL_NOCACHE 55 /* turn data caching off/on (globally) for this file */ + +#ifdef PRIVATE +#define F_OPENFROM 56 /* SPI: open a file relative to fd (must be a dir) */ +#define F_UNLINKFROM 57 /* SPI: open a file relative to fd (must be a dir) */ +#define F_CHECK_OPENEVT 58 /* SPI: if a process is marked OPENEVT, or in O_EVTONLY on opens of this vnode */ +#endif /* PRIVATE */ + +#define F_ADDSIGS 59 /* add detached signatures */ + +#define F_MARKDEPENDENCY 60 /* this process hosts the device supporting the fs backing this fd */ + +#define F_ADDFILESIGS 61 /* add signature from same file (used by dyld for shared libs) */ + +#define F_NODIRECT 62 /* used in conjunction with F_NOCACHE to indicate that DIRECT, synchonous writes */ + /* should not be used (i.e. its ok to temporaily create cached pages) */ + +#define F_GETPROTECTIONCLASS 63 /* Get the protection class of a file from the EA, returns int */ +#define F_SETPROTECTIONCLASS 64 /* Set the protection class of a file for the EA, requires int */ + +#define F_LOG2PHYS_EXT 65 /* file offset to device offset, extended */ + +#define F_GETLKPID 66 /* get record locking information, per-process */ + +#ifdef PRIVATE +#define F_MOVEDATAEXTENTS 69 /* Swap only the data associated with two files */ +#endif + +#define F_SETBACKINGSTORE 70 /* Mark the file as being the backing store for another filesystem */ +#define F_GETPATH_MTMINFO 71 /* return the full path of the FD, but error in specific mtmd circumstances */ + +#define F_SETNOSIGPIPE 73 /* No SIGPIPE generated on EPIPE */ +#define F_GETNOSIGPIPE 74 /* Status of SIGPIPE for this fd */ // FS-specific fcntl()'s numbers begin at 0x00010000 and go up #define FCNTL_FS_SPECIFIC_BASE 0x00010000 -#endif /* _POSIX_C_SOURCE */ + +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ + +#if __DARWIN_C_LEVEL >= 200809L +#define F_DUPFD_CLOEXEC 67 /* mark the dup with FD_CLOEXEC */ +#endif /* file descriptor flags (F_GETFD, F_SETFD) */ #define FD_CLOEXEC 1 /* close-on-exec flag */ @@ -240,6 +300,8 @@ typedef __darwin_pid_t pid_t; #define F_WAIT 0x010 /* Wait until lock is granted */ #define F_FLOCK 0x020 /* Use flock(2) semantics for lock */ #define F_POSIX 0x040 /* Use POSIX semantics for lock */ +#define F_PROV 0x080 /* Non-coelesced provisional lock */ +#define F_WAKE1_SAFE 0x100 /* its safe to only wake one waiter */ #endif /* @@ -266,9 +328,8 @@ typedef __darwin_pid_t pid_t; #define S_IFREG 0100000 /* [XSI] regular */ #define S_IFLNK 0120000 /* [XSI] symbolic link */ #define S_IFSOCK 0140000 /* [XSI] socket */ -#ifndef _POSIX_C_SOURCE -#define S_IFWHT 0160000 /* whiteout */ -#define S_IFXATTR 0200000 /* extended attribute */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define S_IFWHT 0160000 /* OBSOLETE: whiteout */ #endif /* File mode */ @@ -292,7 +353,7 @@ typedef __darwin_pid_t pid_t; #define S_ISGID 0002000 /* [XSI] set group id on execution */ #define S_ISVTX 0001000 /* [XSI] directory restrcted delete */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define S_ISTXT S_ISVTX /* sticky bit: not supported */ #define S_IREAD S_IRUSR /* backward compatability */ #define S_IWRITE S_IWUSR /* backward compatability */ @@ -300,7 +361,7 @@ typedef __darwin_pid_t pid_t; #endif #endif /* !S_IFMT */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) /* allocate flags (F_PREALLOCATE) */ #define F_ALLOCATECONTIG 0x00000002 /* allocate contigious space */ @@ -311,7 +372,7 @@ typedef __darwin_pid_t pid_t; #define F_PEOFPOSMODE 3 /* Make it past all of the SEEK pos modes so that */ /* we can keep them in sync should we desire */ #define F_VOLPOSMODE 4 /* specify volume starting postion */ -#endif /* _POSIX_C_SOURCE */ +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ /* * Advisory file segment locking data type - @@ -326,16 +387,56 @@ struct flock { }; -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) /* * advisory file read data type - * information passed by user to system */ + +#ifdef KERNEL +#pragma pack(4) /* prevent structure padding in kernel */ +#endif /* KERNEL */ + struct radvisory { off_t ra_offset; int ra_count; }; +#ifdef KERNEL +#pragma pack() +#endif /* KERNEL */ + +/* + * detached code signatures data type - + * information passed by user to system used by F_ADDSIGS and F_ADDFILESIGS. + * F_ADDFILESIGS is a shortcut for files that contain their own signature and + * doesn't require mapping of the file in order to load the signature. + */ +typedef struct fsignatures { + off_t fs_file_start; + void *fs_blob_start; + size_t fs_blob_size; +} fsignatures_t; +#ifdef KERNEL +/* LP64 version of fsignatures. all pointers + * grow when we're dealing with a 64-bit process. + * WARNING - keep in sync with fsignatures + */ + +typedef struct user32_fsignatures { + off_t fs_file_start; + user32_addr_t fs_blob_start; + user32_size_t fs_blob_size; +} user32_fsignatures_t; + +typedef struct user_fsignatures { + off_t fs_file_start; /* offset of Mach-O image in FAT file */ + user_addr_t fs_blob_start; /* F_ADDSIGS: mem address of signature*/ + /* F_ADDFILESIGS: offset of signature */ + /* in Mach-O image */ + user_size_t fs_blob_size; /* size of signature blob */ +} user_fsignatures_t; +#endif /* KERNEL */ /* lock operations for flock(2) */ #define LOCK_SH 0x01 /* shared file lock */ @@ -361,14 +462,18 @@ typedef struct fbootstraptransfer { void *fbt_buffer; /* IN: buffer to be read/written */ } fbootstraptransfer_t; - -// LP64todo - should this move? #ifdef KERNEL /* LP64 version of fbootstraptransfer. all pointers * grow when we're dealing with a 64-bit process. * WARNING - keep in sync with fbootstraptransfer */ +typedef struct user32_fbootstraptransfer { + off_t fbt_offset; /* IN: offset to start read/write */ + user32_size_t fbt_length; /* IN: number of bytes to transfer */ + user32_addr_t fbt_buffer; /* IN: buffer to be read/written */ +} user32_fbootstraptransfer_t; + typedef struct user_fbootstraptransfer { off_t fbt_offset; /* IN: offset to start read/write */ user_size_t fbt_length; /* IN: number of bytes to transfer */ @@ -392,24 +497,66 @@ typedef struct user_fbootstraptransfer { * For them the fcntl will nedd to switch from using BMAP to CMAP * and a per filesystem type flag will be needed to interpret the * contiguous bytes count result from CMAP. + * + * F_LOG2PHYS_EXT is a variant of F_LOG2PHYS that uses a passed in + * file offset and length instead of the current file offset. + * F_LOG2PHYS_EXT operates on the same structure as F_LOG2PHYS, but + * treats it as an in/out. */ #pragma pack(4) struct log2phys { - unsigned int l2p_flags; /* unused so far */ - off_t l2p_contigbytes; /* unused so far */ - off_t l2p_devoffset; /* bytes into device */ + unsigned int l2p_flags; /* unused so far */ + off_t l2p_contigbytes; /* F_LOG2PHYS: unused so far */ + /* F_LOG2PHYS_EXT: IN: number of bytes to be queried */ + /* OUT: number of contiguous bytes at this position */ + off_t l2p_devoffset; /* F_LOG2PHYS: OUT: bytes into device */ + /* F_LOG2PHYS_EXT: IN: bytes into file */ + /* OUT: bytes into device */ }; #pragma pack() #define O_POPUP 0x80000000 /* force window to popup on open */ #define O_ALERT 0x20000000 /* small, clean popup window */ -#endif /* _POSIX_C_SOURCE */ + +#ifdef PRIVATE +/* + * SPI: Argument data for F_OPENFROM + */ +struct fopenfrom { + unsigned int o_flags; /* same as open(2) */ + mode_t o_mode; /* same as open(2) */ + char * o_pathname; /* relative pathname */ +}; + +#ifdef KERNEL +/* + * LP64 version of fopenfrom. Memory pointers + * grow when we're dealing with a 64-bit process. + * + * WARNING - keep in sync with fopenfrom (above) + */ +struct user32_fopenfrom { + unsigned int o_flags; + mode_t o_mode; + user32_addr_t o_pathname; +}; + +struct user_fopenfrom { + unsigned int o_flags; + mode_t o_mode; + user_addr_t o_pathname; +}; +#endif /* KERNEL */ + +#endif /* PRIVATE */ + +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ #ifndef KERNEL -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #ifndef _FILESEC_T struct _filesec; typedef struct _filesec *filesec_t; @@ -430,25 +577,43 @@ typedef enum { /* XXX backwards compatibility */ #define FILESEC_GUID FILESEC_UUID -#endif /* _POSIX_C_SOURCE */ +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ __BEGIN_DECLS -int open(const char *, int, ...); -int creat(const char *, mode_t); -int fcntl(int, int, ...); -#ifndef _POSIX_C_SOURCE +int open(const char *, int, ...) __DARWIN_ALIAS_C(open); +int creat(const char *, mode_t) __DARWIN_ALIAS_C(creat); +int fcntl(int, int, ...) __DARWIN_ALIAS_C(fcntl); +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) + +#ifdef PRIVATE +/* + * These definitions are retained temporarily for compatibility. + * If you want to use fileports, please use + * #include + * or + * #include + */ +#ifndef _FILEPORT_T +#define _FILEPORT_T +typedef __darwin_mach_port_t fileport_t; +#define FILEPORT_NULL ((fileport_t)0) +#endif /* _FILEPORT_T */ + +int fileport_makeport(int, fileport_t*); +int fileport_makefd(fileport_t); +#endif /* PRIVATE */ int openx_np(const char *, int, filesec_t); int flock(int, int); filesec_t filesec_init(void); filesec_t filesec_dup(filesec_t); void filesec_free(filesec_t); int filesec_get_property(filesec_t, filesec_property_t, void *); -int filesec_set_property(filesec_t, filesec_property_t, const void *); -int filesec_unset_property(filesec_t, filesec_property_t); int filesec_query_property(filesec_t, filesec_property_t, int *); +int filesec_set_property(filesec_t, filesec_property_t, const void *); +int filesec_unset_property(filesec_t, filesec_property_t) __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2); #define _FILESEC_UNSET_PROPERTY ((void *)0) #define _FILESEC_REMOVE_ACL ((void *)1) -#endif /* !_POSIX_C_SOURCE */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ __END_DECLS #endif