X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/2d21ac55c334faf3a56e5634905ed6987fc787d4..04b8595b18b1b41ac7a206e4b3d51a635f8413d7:/bsd/sys/fcntl.h diff --git a/bsd/sys/fcntl.h b/bsd/sys/fcntl.h index 200b3e7ac..4c80591ff 100644 --- a/bsd/sys/fcntl.h +++ b/bsd/sys/fcntl.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2007 Apple Inc. All rights reserved. + * Copyright (c) 2000-2013 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -77,27 +77,15 @@ */ #include #include - -/* We should not be exporting size_t here. Temporary for gcc bootstrapping. */ -#ifndef _SIZE_T -#define _SIZE_T -typedef __darwin_size_t size_t; -#endif - -#ifndef _MODE_T -typedef __darwin_mode_t mode_t; -#define _MODE_T -#endif - -#ifndef _OFF_T -typedef __darwin_off_t off_t; -#define _OFF_T +#ifndef KERNEL +#include #endif -#ifndef _PID_T -typedef __darwin_pid_t pid_t; -#define _PID_T -#endif +/* We should not be exporting size_t here. Temporary for gcc bootstrapping. */ +#include +#include +#include +#include /* * File status flags: these are used by open(2), fcntl(2). @@ -126,7 +114,9 @@ typedef __darwin_pid_t pid_t; #endif #define O_NONBLOCK 0x0004 /* no delay */ #define O_APPEND 0x0008 /* set append mode */ -#define O_SYNC 0x0080 /* synchronous writes */ + +#include + #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 */ @@ -142,6 +132,22 @@ typedef __darwin_pid_t pid_t; #define FDEFER 0x2000 /* defer for next gc pass */ #define FHASLOCK 0x4000 /* descriptor holds advisory lock */ #endif + +#if __DARWIN_C_LEVEL >= 200809L +/* + * Descriptor value for the current working directory + */ +#define AT_FDCWD -2 + +/* + * Flags for the at functions + */ +#define AT_EACCESS 0x0010 /* Use effective ids in access check */ +#define AT_SYMLINK_NOFOLLOW 0x0020 /* Act on the symlink itself not the target */ +#define AT_SYMLINK_FOLLOW 0x0040 /* Act on target of symlink */ +#define AT_REMOVEDIR 0x0080 /* Path refers to directory */ +#endif + #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define O_EVTONLY 0x8000 /* descriptor requested for event notifications only */ #endif @@ -162,7 +168,33 @@ typedef __darwin_pid_t pid_t; #define O_SYMLINK 0x200000 /* allow open of a symlink */ #endif -//#define O_SYNC /* ??? POSIX: Write according to synchronized I/O file integrity completion */ +#include + +#ifdef KERNEL +#define FNODIRECT 0x800000 /* fcntl(F_NODIRECT, 1) */ +#endif + +#if __DARWIN_C_LEVEL >= 200809L +#define O_CLOEXEC 0x1000000 /* implicitly set FD_CLOEXEC */ +#endif + +#ifdef KERNEL +#define FENCRYPTED 0x2000000 +#endif + +#ifdef KERNEL +#define FSINGLE_WRITER 0x4000000 /* fcntl(F_SINGLE_WRITER, 1) */ +#endif + +#ifdef KERNEL +#define O_CLOFORK 0x8000000 /* implicitly set FD_CLOFORK */ +#endif + +/* Data Protection Flags */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define O_DP_GETRAWENCRYPTED 0x0001 +#endif + #ifdef KERNEL /* convert from open() flags to/from fflags; convert O_RD/WR to FREAD/FWRITE */ @@ -170,9 +202,9 @@ 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 /* @@ -184,6 +216,7 @@ typedef __darwin_pid_t pid_t; #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 */ @@ -214,14 +247,19 @@ 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 */ +#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL +#define F_SETLKWTIMEOUT 10 /* F_SETLK; wait if blocked, return on timeout */ +#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ #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 for this fd */ -#define F_READBOOTSTRAP 46 /* Read bootstrap from disk */ -#define F_WRITEBOOTSTRAP 47 /* Write bootstrap on disk */ +/* + * 46,47 used to be F_READBOOTSTRAP and F_WRITEBOOTSTRAP + */ #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 */ @@ -239,15 +277,80 @@ typedef __darwin_pid_t pid_t; #define F_ADDSIGS 59 /* add detached signatures */ +#ifdef PRIVATE +/* Deprecated/Removed in 10.9 */ #define F_MARKDEPENDENCY 60 /* this process hosts the device supporting the fs backing this fd */ +#endif + +#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 */ + +/* See F_DUPFD_CLOEXEC below for 67 */ + +#ifdef PRIVATE +#define F_SETSTATICCONTENT 68 /* + * indicate to the filesystem/storage driver that the content to be + * written is usually static. a nonzero value enables it, 0 disables it. + */ +#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_GETCODEDIR 72 /* Returns the code directory, with associated hashes, to the caller */ + +#define F_SETNOSIGPIPE 73 /* No SIGPIPE generated on EPIPE */ +#define F_GETNOSIGPIPE 74 /* Status of SIGPIPE for this fd */ + +#define F_TRANSCODEKEY 75 /* For some cases, we need to rewrap the key for AKS/MKB */ + +#define F_SINGLE_WRITER 76 /* file being written to a by single writer... if throttling enabled, writes */ + /* may be broken into smaller chunks with throttling in between */ + +#define F_GETPROTECTIONLEVEL 77 /* Get the protection version number for this filesystem */ + +#define F_FINDSIGS 78 /* Add detached code signatures (used by dyld for shared libs) */ + +#ifdef PRIVATE +#define F_GETDEFAULTPROTLEVEL 79 /* Get the default protection level for the filesystem */ +#define F_MAKECOMPRESSED 80 /* Make the file compressed; truncate & toggle BSD bits */ +#define F_SET_GREEDY_MODE 81 /* + * indicate to the filesystem/storage driver that the content to be + * written should be written in greedy mode for additional speed at + * the cost of storage efficiency. A nonzero value enables it, 0 disables it. + */ + +#define F_SETIOTYPE 82 /* + * Use parameters to describe content being written to the FD. See + * flag definitions below for argument bits. + */ +#endif + // FS-specific fcntl()'s numbers begin at 0x00010000 and go up #define FCNTL_FS_SPECIFIC_BASE 0x00010000 #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 */ +#if PRIVATE +#define FD_CLOFORK 2 /* close-on-fork flag */ +#endif /* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */ #define F_RDLCK 1 /* shared or read lock */ @@ -257,66 +360,30 @@ 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_PROV 0x080 /* Non-coalesced provisional lock */ +#define F_WAKE1_SAFE 0x100 /* its safe to only wake one waiter */ +#define F_ABORT 0x200 /* lock attempt aborted (force umount) */ +#endif + +#if PRIVATE +/* + * ISOCHRONOUS attempts to sustain a minimum platform-dependent throughput + * for the duration of the I/O delivered to the driver. + */ +#define F_IOTYPE_ISOCHRONOUS 0x0001 #endif /* * [XSI] The values used for l_whence shall be defined as described * in */ -#ifndef SEEK_SET -#define SEEK_SET 0 /* set file offset to offset */ -#define SEEK_CUR 1 /* set file offset to current plus offset */ -#define SEEK_END 2 /* set file offset to EOF plus offset */ -#endif /* !SEEK_SET */ +#include /* * [XSI] The symbolic names for file modes for use as values of mode_t * shall be defined as described in */ -#ifndef S_IFMT -/* File type */ -#define S_IFMT 0170000 /* [XSI] type of file mask */ -#define S_IFIFO 0010000 /* [XSI] named pipe (fifo) */ -#define S_IFCHR 0020000 /* [XSI] character special */ -#define S_IFDIR 0040000 /* [XSI] directory */ -#define S_IFBLK 0060000 /* [XSI] block special */ -#define S_IFREG 0100000 /* [XSI] regular */ -#define S_IFLNK 0120000 /* [XSI] symbolic link */ -#define S_IFSOCK 0140000 /* [XSI] socket */ -#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) -#define S_IFWHT 0160000 /* whiteout */ -#define S_IFXATTR 0200000 /* extended attribute */ -#endif - -/* File mode */ -/* Read, write, execute/search by owner */ -#define S_IRWXU 0000700 /* [XSI] RWX mask for owner */ -#define S_IRUSR 0000400 /* [XSI] R for owner */ -#define S_IWUSR 0000200 /* [XSI] W for owner */ -#define S_IXUSR 0000100 /* [XSI] X for owner */ -/* Read, write, execute/search by group */ -#define S_IRWXG 0000070 /* [XSI] RWX mask for group */ -#define S_IRGRP 0000040 /* [XSI] R for group */ -#define S_IWGRP 0000020 /* [XSI] W for group */ -#define S_IXGRP 0000010 /* [XSI] X for group */ -/* Read, write, execute/search by others */ -#define S_IRWXO 0000007 /* [XSI] RWX mask for other */ -#define S_IROTH 0000004 /* [XSI] R for other */ -#define S_IWOTH 0000002 /* [XSI] W for other */ -#define S_IXOTH 0000001 /* [XSI] X for other */ - -#define S_ISUID 0004000 /* [XSI] set user id on execution */ -#define S_ISGID 0002000 /* [XSI] set group id on execution */ -#define S_ISVTX 0001000 /* [XSI] directory restrcted delete */ - -#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 */ -#define S_IEXEC S_IXUSR /* backward compatability */ -#endif -#endif /* !S_IFMT */ +#include #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) /* allocate flags (F_PREALLOCATE) */ @@ -343,21 +410,88 @@ struct flock { short l_whence; /* type of l_start */ }; +#include + +#if __DARWIN_C_LEVEL >= __DARWIN_C_FULL +/* + * Advisory file segment locking with time out - + * Information passed to system by user for F_SETLKWTIMEOUT + */ +struct flocktimeout { + struct flock fl; /* flock passed for file locking */ + struct timespec timeout; /* timespec struct for timeout */ +}; +#endif /* __DARWIN_C_LEVEL >= __DARWIN_C_FULL */ #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 */ + +#ifndef KERNEL +/** Information the user passes in to get the codeblobs out of the kernel */ +typedef struct fcodeblobs { + void *f_cd_hash; + size_t f_hash_size; + void *f_cd_buffer; + size_t f_cd_size; + unsigned int *f_out_size; + int f_arch; + int __padding; +} fcodeblobs_t; +#endif /* KERNEL */ + +#ifdef KERNEL +typedef struct user32_fcodeblobs { + user32_addr_t f_cd_hash; + user32_size_t f_hash_size; + user32_addr_t f_cd_buffer; + user32_size_t f_cd_size; + user32_addr_t f_out_size; + int f_arch; +} user32_fcodeblobs_t; + +/* LP64 version of fcodeblobs */ +typedef struct user64_fcodeblobs { + user64_addr_t f_cd_hash; + user64_size_t f_hash_size; + user64_addr_t f_cd_buffer; + user64_size_t f_cd_size; + user64_addr_t f_out_size; + int f_arch; + int __padding; +} user64_fcodeblobs_t; + +/* kernel version of fcodeblobs */ +typedef struct user_fcodeblobs { + user_addr_t f_cd_hash; + user_size_t f_hash_size; + user_addr_t f_cd_buffer; + user_size_t f_cd_size; + user_addr_t f_out_size; + int f_arch; +} user_fcodeblobs_t; +#endif /* KERNEL */ + /* * detached code signatures data type - - * information passed by user to system - * used by F_ADDSIGS + * 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; @@ -369,10 +503,19 @@ typedef struct fsignatures { * grow when we're dealing with a 64-bit process. * WARNING - keep in sync with fsignatures */ -typedef struct user_fsignatures { + +typedef struct user32_fsignatures { off_t fs_file_start; - user_addr_t fs_blob_start; - user_size_t fs_blob_size; + 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 */ @@ -400,13 +543,18 @@ typedef struct fbootstraptransfer { void *fbt_buffer; /* IN: buffer to be read/written */ } fbootstraptransfer_t; - #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 */ @@ -430,13 +578,22 @@ 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() @@ -461,6 +618,12 @@ struct fopenfrom { * * 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; @@ -475,11 +638,9 @@ struct user_fopenfrom { #ifndef KERNEL #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) -#ifndef _FILESEC_T -struct _filesec; -typedef struct _filesec *filesec_t; -#define _FILESEC_T -#endif + +#include + typedef enum { FILESEC_OWNER = 1, FILESEC_GROUP = 2, @@ -499,17 +660,44 @@ typedef enum { __BEGIN_DECLS int open(const char *, int, ...) __DARWIN_ALIAS_C(open); +#if __DARWIN_C_LEVEL >= 200809L +int openat(int, const char *, int, ...) __DARWIN_NOCANCEL(openat) __OSX_AVAILABLE_STARTING(__MAC_10_10, __IPHONE_8_0); +#endif 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); +/* + * data-protected non-portable open(2) : + int open_dprotected_np(user_addr_t path, int flags, int class, int dpflags, int mode) + */ +int open_dprotected_np ( const char *, int, int, int, ...); 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_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 || _DARWIN_C_SOURCE) */