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libc/winsup/cygwin/ntdll.h
Corinna Vinschen 5a101414ed * exceptions.cc (_cygtls::handle_exceptions): In case of a 
STATUS_ACCESS_VIOLATION, check if the page is a mmaped page beyond
	a file's EOF.  Generate SIGBUS instead of SIGSEGV then.
	* mmap.cc (__PROT_ATTACH): New define.
	(__PROT_FILLER): Ditto.
	(fh_anonymous): Rename from fh_paging_file;
	(fh_disk_file): New global static variable.
	(attached): New inline function.
	(filler): Ditto.
	(gen_create_protect): Split off from gen_protect to use the file's
	access mode to create mapping always with maximum allowed protections.
	(gen_protect): Accomodate pages attached beyond EOF.  Use symbolic
	values instead of numerics when possible.  Drop create parameter.
	(gen_access): Use file's access mode instead of protection.
	(CreateMapping9x): Create named mapping names so that different
	creation access modes result in different mappings.
	(CreateMappingNT): Only reserve attached pages, don't commit them.
	(MapViewNT): Ditto.  Set AT_ROUND_TO_PAGE for all non-NULL base
	addresses.
	(mmap_func_t): Define CreateMapping and MapView function pointers
	with additional openflags parameter.
	(class mmap_record): Add openflags member.
	(mmap_record::mmap_record): Add openflags parameter.
	(mmap_record::get_openflags): New accessor.
	(mmap_record::attached): Call global attached function.
	(mmap_record::filler): Call global filler function.
	(mmap_record::gen_create_protect): Call global gen_create_protect
	function.
	(mmap_record::gen_protect): Drop create parameter.
	(mmap_record::alloc_fh): Set fhandler's access flags.
	(list::search_record): Accomodate filler pages.
	(list::set): Use inode number as hash value.
	(map::get_list_by_fd): Check hash value against file's inode number.
	(mmap_is_attached_page): New function to evaluate if a given address
	is on a attached page.  Called from _cygtls::handle_exceptions.
	(mmap_worker): New function to do mapping and bookkeeping in a
	single call.
	(mmap64): Use roundup2 to round length to pagesize alignment.
	Initialize global fhandlers.  Simplify anonymous initialization.
	Add SUSv3 compatible check of file open mode vs. requested protection.
	Try creating new file handles to allow maximum page protection.
	Allow creating attached pages in case of mapping beyond EOF.
	Close new file handle if one has been created.
	(munmap): Align len to pagesize.
	(msync): Rework argument checks. Align len to pagesize.
	(mprotect): Ditto.  Accomodate attached pages.
	(mlock): Use roundup/rounddown macros instead of homemade expressions.
	(munlock): Add page alignment as in mlock.
	(fhandler_dev_zero::munmap): Fix unmapping of non-private mappings.
	(fhandler_dev_zero::fixup_mmap_after_fork): Accomodate filler pages.
	(fixup_mmaps_after_fork): Don't fail if attached pages couldn't be
	created in child.  Avoid superfluous call to VirtualFree.  Check for
	original allocation protection to fix PAGE_WRITECOPY protection.
	* ntdll.h: Revert deletion of AT_ROUND_TO_PAGE define.
	* winsup.h (mmap_is_attached_page): Declare.
2005-12-07 11:16:47 +00:00

520 lines
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/* ntdll.h. Contains ntdll specific stuff not defined elsewhere.
Copyright 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#define STATUS_INFO_LENGTH_MISMATCH ((NTSTATUS) 0xc0000004)
#define STATUS_BUFFER_TOO_SMALL ((NTSTATUS) 0xc0000023)
#define STATUS_WORKING_SET_QUOTA ((NTSTATUS) 0xc00000a1L)
#define PDI_MODULES 0x01
#define PDI_HEAPS 0x04
#define LDRP_IMAGE_DLL 0x00000004
#define WSLE_PAGE_READONLY 0x001
#define WSLE_PAGE_EXECUTE 0x002
#define WSLE_PAGE_EXECUTE_READ 0x003
#define WSLE_PAGE_READWRITE 0x004
#define WSLE_PAGE_WRITECOPY 0x005
#define WSLE_PAGE_EXECUTE_READWRITE 0x006
#define WSLE_PAGE_EXECUTE_WRITECOPY 0x007
#define WSLE_PAGE_SHARE_COUNT_MASK 0x0E0
#define WSLE_PAGE_SHAREABLE 0x100
#define AT_EXTENDABLE_FILE 0x00002000
#define AT_ROUND_TO_PAGE 0x40000000
#define LOCK_VM_IN_WSL 1
#define LOCK_VM_IN_RAM 2
typedef ULONG KAFFINITY;
typedef enum _SYSTEM_INFORMATION_CLASS
{
SystemBasicInformation = 0,
SystemPerformanceInformation = 2,
SystemTimeOfDayInformation = 3,
SystemProcessesAndThreadsInformation = 5,
SystemProcessorTimes = 8,
SystemPagefileInformation = 18,
/* There are a lot more of these... */
} SYSTEM_INFORMATION_CLASS;
typedef struct _SYSTEM_BASIC_INFORMATION
{
ULONG Unknown;
ULONG MaximumIncrement;
ULONG PhysicalPageSize;
ULONG NumberOfPhysicalPages;
ULONG LowestPhysicalPage;
ULONG HighestPhysicalPage;
ULONG AllocationGranularity;
ULONG LowestUserAddress;
ULONG HighestUserAddress;
ULONG ActiveProcessors;
UCHAR NumberProcessors;
} SYSTEM_BASIC_INFORMATION, *PSYSTEM_BASIC_INFORMATION;
typedef struct _SYSTEM_PAGEFILE_INFORMATION
{
ULONG NextEntryOffset;
ULONG CurrentSize;
ULONG TotalUsed;
ULONG PeakUsed;
UNICODE_STRING FileName;
} SYSTEM_PAGEFILE_INFORMATION, *PSYSTEM_PAGEFILE_INFORMATION;
typedef struct __attribute__ ((aligned (8))) _SYSTEM_PROCESSOR_TIMES
{
LARGE_INTEGER IdleTime;
LARGE_INTEGER KernelTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER DpcTime;
LARGE_INTEGER InterruptTime;
ULONG InterruptCount;
} SYSTEM_PROCESSOR_TIMES, *PSYSTEM_PROCESSOR_TIMES;
typedef LONG KPRIORITY;
typedef struct _VM_COUNTERS
{
ULONG PeakVirtualSize;
ULONG VirtualSize;
ULONG PageFaultCount;
ULONG PeakWorkingSetSize;
ULONG WorkingSetSize;
ULONG QuotaPeakPagedPoolUsage;
ULONG QuotaPagedPoolUsage;
ULONG QuotaPeakNonPagedPoolUsage;
ULONG QuotaNonPagedPoolUsage;
ULONG PagefileUsage;
ULONG PeakPagefileUsage;
} VM_COUNTERS, *PVM_COUNTERS;
typedef struct _CLIENT_ID
{
HANDLE UniqueProcess;
HANDLE UniqueThread;
} CLIENT_ID, *PCLIENT_ID;
typedef enum
{
StateInitialized,
StateReady,
StateRunning,
StateStandby,
StateTerminated,
StateWait,
StateTransition,
StateUnknown,
} THREAD_STATE;
typedef enum
{
Executive,
FreePage,
PageIn,
PoolAllocation,
DelayExecution,
Suspended,
UserRequest,
WrExecutive,
WrFreePage,
WrPageIn,
WrPoolAllocation,
WrDelayExecution,
WrSuspended,
WrUserRequest,
WrEventPair,
WrQueue,
WrLpcReceive,
WrLpcReply,
WrVirtualMemory,
WrPageOut,
WrRendezvous,
Spare2,
Spare3,
Spare4,
Spare5,
Spare6,
WrKernel,
MaximumWaitReason
} KWAIT_REASON;
typedef struct _SYSTEM_THREADS
{
LARGE_INTEGER KernelTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER CreateTime;
ULONG WaitTime;
PVOID StartAddress;
CLIENT_ID ClientId;
KPRIORITY Priority;
KPRIORITY BasePriority;
ULONG ContextSwitchCount;
THREAD_STATE State;
KWAIT_REASON WaitReason;
DWORD Reserved;
} SYSTEM_THREADS, *PSYSTEM_THREADS;
typedef struct _SYSTEM_PROCESSES
{
ULONG NextEntryDelta;
ULONG ThreadCount;
ULONG Reserved1[6];
LARGE_INTEGER CreateTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER KernelTime;
UNICODE_STRING ProcessName;
KPRIORITY BasePriority;
ULONG ProcessId;
ULONG InheritedFromProcessId;
ULONG HandleCount;
ULONG Reserved2[2];
VM_COUNTERS VmCounters;
IO_COUNTERS IoCounters;
SYSTEM_THREADS Threads[1];
} SYSTEM_PROCESSES, *PSYSTEM_PROCESSES;
typedef struct _IO_STATUS_BLOCK
{
NTSTATUS Status;
ULONG Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
typedef struct _SYSTEM_PERFORMANCE_INFORMATION
{
LARGE_INTEGER IdleTime;
LARGE_INTEGER ReadTransferCount;
LARGE_INTEGER WriteTransferCount;
LARGE_INTEGER OtherTransferCount;
ULONG ReadOperationCount;
ULONG WriteOperationCount;
ULONG OtherOperationCount;
ULONG AvailablePages;
ULONG TotalCommittedPages;
ULONG TotalCommitLimit;
ULONG PeakCommitment;
ULONG PageFaults;
ULONG WriteCopyFaults;
ULONG TransitionFaults;
ULONG Reserved1;
ULONG DemandZeroFaults;
ULONG PagesRead;
ULONG PageReadIos;
ULONG Reserved2[2];
ULONG PagefilePagesWritten;
ULONG PagefilePageWriteIos;
ULONG MappedFilePagesWritten;
ULONG MappedFilePageWriteIos;
ULONG PagedPoolUsage;
ULONG NonPagedPoolUsage;
ULONG PagedPoolAllocs;
ULONG PagedPoolFrees;
ULONG NonPagedPoolAllocs;
ULONG NonPagedPoolFrees;
ULONG TotalFreeSystemPtes;
ULONG SystemCodePage;
ULONG TotalSystemDriverPages;
ULONG TotalSystemCodePages;
ULONG SmallNonPagedLookasideListAllocateHits;
ULONG SmallPagedLookasideListAllocateHits;
ULONG Reserved3;
ULONG MmSystemCachePage;
ULONG PagedPoolPage;
ULONG SystemDriverPage;
ULONG FastReadNoWait;
ULONG FastReadWait;
ULONG FastReadResourceMiss;
ULONG FastReadNotPossible;
ULONG FastMdlReadNoWait;
ULONG FastMdlReadWait;
ULONG FastMdlReadResourceMiss;
ULONG FastMdlReadNotPossible;
ULONG MapDataNoWait;
ULONG MapDataWait;
ULONG MapDataNoWaitMiss;
ULONG MapDataWaitMiss;
ULONG PinMappedDataCount;
ULONG PinReadNoWait;
ULONG PinReadWait;
ULONG PinReadNoWaitMiss;
ULONG PinReadWaitMiss;
ULONG CopyReadNoWait;
ULONG CopyReadWait;
ULONG CopyReadNoWaitMiss;
ULONG CopyReadWaitMiss;
ULONG MdlReadNoWait;
ULONG MdlReadWait;
ULONG MdlReadNoWaitMiss;
ULONG MdlReadWaitMiss;
ULONG ReadAheadIos;
ULONG LazyWriteIos;
ULONG LazyWritePages;
ULONG DataFlushes;
ULONG DataPages;
ULONG ContextSwitches;
ULONG FirstLevelTbFills;
ULONG SecondLevelTbFills;
ULONG SystemCalls;
} SYSTEM_PERFORMANCE_INFORMATION, *PSYSTEM_PERFORMANCE_INFORMATION;
typedef struct __attribute__ ((aligned(8))) _SYSTEM_TIME_OF_DAY_INFORMATION
{
LARGE_INTEGER BootTime;
LARGE_INTEGER CurrentTime;
LARGE_INTEGER TimeZoneBias;
ULONG CurrentTimeZoneId;
} SYSTEM_TIME_OF_DAY_INFORMATION, *PSYSTEM_TIME_OF_DAY_INFORMATION;
typedef enum _PROCESSINFOCLASS
{
ProcessBasicInformation = 0,
ProcessQuotaLimits = 1,
ProcessVmCounters = 3,
ProcessTimes =4,
} PROCESSINFOCLASS;
typedef struct _DEBUG_BUFFER
{
HANDLE SectionHandle;
PVOID SectionBase;
PVOID RemoteSectionBase;
ULONG SectionBaseDelta;
HANDLE EventPairHandle;
ULONG Unknown[2];
HANDLE RemoteThreadHandle;
ULONG InfoClassMask;
ULONG SizeOfInfo;
ULONG AllocatedSize;
ULONG SectionSize;
PVOID ModuleInformation;
PVOID BackTraceInformation;
PVOID HeapInformation;
PVOID LockInformation;
PVOID Reserved[9];
} DEBUG_BUFFER, *PDEBUG_BUFFER;
typedef struct _DEBUG_HEAP_INFORMATION
{
ULONG Base;
ULONG Flags;
USHORT Granularity;
USHORT Unknown;
ULONG Allocated;
ULONG Committed;
ULONG TagCount;
ULONG BlockCount;
ULONG Reserved[7];
PVOID Tags;
PVOID Blocks;
} DEBUG_HEAP_INFORMATION, *PDEBUG_HEAP_INFORMATION;
typedef struct _DEBUG_MODULE_INFORMATION
{
ULONG Reserved[2];
ULONG Base;
ULONG Size;
ULONG Flags;
USHORT Index;
USHORT Unknown;
USHORT LoadCount;
USHORT ModuleNameOffset;
CHAR ImageName[256];
} DEBUG_MODULE_INFORMATION, *PDEBUG_MODULE_INFORMATION;
typedef struct _KERNEL_USER_TIMES
{
LARGE_INTEGER CreateTime;
LARGE_INTEGER ExitTime;
LARGE_INTEGER KernelTime;
LARGE_INTEGER UserTime;
} KERNEL_USER_TIMES, *PKERNEL_USER_TIMES;
typedef void *PPEB;
typedef struct _PROCESS_BASIC_INFORMATION
{
NTSTATUS ExitStatus;
PPEB PebBaseAddress;
KAFFINITY AffinityMask;
KPRIORITY BasePriority;
ULONG UniqueProcessId;
ULONG InheritedFromUniqueProcessId;
} PROCESS_BASIC_INFORMATION, *PPROCESS_BASIC_INFORMATION;
typedef enum _MEMORY_INFORMATION_CLASS
{
MemoryBasicInformation,
MemoryWorkingSetList,
MemorySectionName,
MemoryBasicVlmInformation
} MEMORY_INFORMATION_CLASS;
typedef struct _MEMORY_WORKING_SET_LIST
{
ULONG NumberOfPages;
ULONG WorkingSetList[1];
} MEMORY_WORKING_SET_LIST, *PMEMORY_WORKING_SET_LIST;
typedef struct _FILE_BASIC_INFORMATION {
LARGE_INTEGER CreationTime;
LARGE_INTEGER LastAccessTime;
LARGE_INTEGER LastWriteTime;
LARGE_INTEGER ChangeTime;
ULONG FileAttributes;
} FILE_BASIC_INFORMATION, *PFILE_BASIC_INFORMATION;
typedef struct _FILE_STANDARD_INFORMATION {
LARGE_INTEGER AllocationSize;
LARGE_INTEGER EndOfFile;
ULONG NumberOfLinks;
BOOLEAN DeletePending;
BOOLEAN Directory;
} FILE_STANDARD_INFORMATION, *PFILE_STANDARD_INFORMATION;
typedef struct _FILE_INTERNAL_INFORMATION {
LARGE_INTEGER IndexNumber;
} FILE_INTERNAL_INFORMATION, *PFILE_INTERNAL_INFORMATION;
typedef struct _FILE_EA_INFORMATION {
ULONG EaSize;
} FILE_EA_INFORMATION, *PFILE_EA_INFORMATION;
typedef struct _FILE_ACCESS_INFORMATION {
ACCESS_MASK AccessFlags;
} FILE_ACCESS_INFORMATION, *PFILE_ACCESS_INFORMATION;
typedef struct _FILE_POSITION_INFORMATION {
LARGE_INTEGER CurrentByteOffset;
} FILE_POSITION_INFORMATION, *PFILE_POSITION_INFORMATION;
typedef struct _FILE_MODE_INFORMATION {
ULONG Mode;
} FILE_MODE_INFORMATION, *PFILE_MODE_INFORMATION;
typedef struct _FILE_ALIGNMENT_INFORMATION {
ULONG AlignmentRequirement;
} FILE_ALIGNMENT_INFORMATION;
typedef struct _FILE_NAME_INFORMATION {
ULONG FileNameLength;
WCHAR FileName[1];
} FILE_NAME_INFORMATION, *PFILE_NAME_INFORMATION;
typedef struct _FILE_ALL_INFORMATION {
FILE_BASIC_INFORMATION BasicInformation;
FILE_STANDARD_INFORMATION StandardInformation;
FILE_INTERNAL_INFORMATION InternalInformation;
FILE_EA_INFORMATION EaInformation;
FILE_ACCESS_INFORMATION AccessInformation;
FILE_POSITION_INFORMATION PositionInformation;
FILE_MODE_INFORMATION ModeInformation;
FILE_ALIGNMENT_INFORMATION AlignmentInformation;
FILE_NAME_INFORMATION NameInformation;
} FILE_ALL_INFORMATION, *PFILE_ALL_INFORMATION;
typedef struct _FILE_PIPE_LOCAL_INFORMATION
{
ULONG NamedPipeType;
ULONG NamedPipeConfiguration;
ULONG MaximumInstances;
ULONG CurrentInstances;
ULONG InboundQuota;
ULONG ReadDataAvailable;
ULONG OutboundQuota;
ULONG WriteQuotaAvailable;
ULONG NamedPipeState;
ULONG NamedPipeEnd;
} FILE_PIPE_LOCAL_INFORMATION, *PFILE_PIPE_LOCAL_INFORMATION;
typedef struct _FILE_COMPRESSION_INFORMATION
{
LARGE_INTEGER CompressedSize;
USHORT CompressionFormat;
UCHAR CompressionUnitShift;
UCHAR Unknown;
UCHAR ClusterSizeShift;
} FILE_COMPRESSION_INFORMATION, *PFILE_COMPRESSION_INFORMATION;
typedef enum _FILE_INFORMATION_CLASS
{
FileAllInformation = 18,
FilePipeLocalInformation = 24,
FileCompressionInformation = 28
} FILE_INFORMATION_CLASS, *PFILE_INFORMATION_CLASS;
typedef struct _FILE_FS_VOLUME_INFORMATION
{
LARGE_INTEGER VolumeCreationTime;
ULONG VolumeSerialNumber;
ULONG VolumeLabelLength;
BOOLEAN SupportsObjects;
WCHAR VolumeLabel[1];
} FILE_FS_VOLUME_INFORMATION, *PFILE_FS_VOLUME_INFORMATION;
typedef enum _FSINFOCLASS
{
FileFsVolumeInformation = 1
} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;
typedef enum _OBJECT_INFORMATION_CLASS
{
ObjectBasicInformation = 0,
ObjectNameInformation = 1,
ObjectHandleInformation = 4
// and many more
} OBJECT_INFORMATION_CLASS;
typedef struct _OBJECT_NAME_INFORMATION
{
UNICODE_STRING Name;
} OBJECT_NAME_INFORMATION;
/* Function declarations for ntdll.dll. These don't appear in any
standard Win32 header. */
extern "C"
{
NTSTATUS NTAPI NtCreateFile (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES,
PIO_STATUS_BLOCK, PLARGE_INTEGER, ULONG, ULONG,
ULONG, ULONG, PVOID, ULONG);
NTSTATUS NTAPI NtCreateSection (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES,
PLARGE_INTEGER, ULONG, ULONG, HANDLE);
NTSTATUS NTAPI NtCreateToken (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES,
TOKEN_TYPE, PLUID, PLARGE_INTEGER, PTOKEN_USER,
PTOKEN_GROUPS, PTOKEN_PRIVILEGES, PTOKEN_OWNER,
PTOKEN_PRIMARY_GROUP, PTOKEN_DEFAULT_DACL,
PTOKEN_SOURCE);
NTSTATUS NTAPI NtLockVirtualMemory (HANDLE, PVOID *, ULONG *, ULONG);
NTSTATUS NTAPI NtMapViewOfSection (HANDLE, HANDLE, PVOID *, ULONG, ULONG,
PLARGE_INTEGER, PULONG, SECTION_INHERIT,
ULONG, ULONG);
NTSTATUS NTAPI NtOpenFile (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES,
PIO_STATUS_BLOCK, ULONG, ULONG);
NTSTATUS NTAPI NtOpenSection (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES);
NTSTATUS NTAPI NtQueryInformationFile (HANDLE, PIO_STATUS_BLOCK, PVOID,
ULONG, FILE_INFORMATION_CLASS);
NTSTATUS NTAPI NtQueryInformationProcess (HANDLE, PROCESSINFOCLASS,
PVOID, ULONG, PULONG);
NTSTATUS NTAPI NtQueryObject (HANDLE, OBJECT_INFORMATION_CLASS, VOID *,
ULONG, ULONG *);
NTSTATUS NTAPI NtQuerySystemInformation (SYSTEM_INFORMATION_CLASS,
PVOID, ULONG, PULONG);
NTSTATUS NTAPI NtQuerySecurityObject (HANDLE, SECURITY_INFORMATION,
PSECURITY_DESCRIPTOR, ULONG, PULONG);
NTSTATUS NTAPI NtQueryVirtualMemory (HANDLE, PVOID, MEMORY_INFORMATION_CLASS,
PVOID, ULONG, PULONG);
NTSTATUS NTAPI NtQueryVolumeInformationFile (HANDLE, IO_STATUS_BLOCK *,
VOID *, ULONG,
FS_INFORMATION_CLASS);
NTSTATUS NTAPI NtSetSecurityObject (HANDLE, SECURITY_INFORMATION,
PSECURITY_DESCRIPTOR);
NTSTATUS NTAPI NtUnlockVirtualMemory (HANDLE, PVOID *, ULONG *, ULONG);
NTSTATUS NTAPI NtUnmapViewOfSection (HANDLE, PVOID);
VOID NTAPI RtlInitUnicodeString (PUNICODE_STRING, PCWSTR);
ULONG NTAPI RtlNtStatusToDosError (NTSTATUS);
ULONG WINAPI RtlIsDosDeviceName_U (PCWSTR);
}
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