utils.c File Reference

#include <k32.h>
#include <debug.h>

Include dependency graph for utils.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
ULONG NTAPI	BasepUnicodeStringToOemSize (IN PUNICODE_STRING String)
ULONG NTAPI	BasepOemStringToUnicodeSize (IN PANSI_STRING String)
ULONG NTAPI	BasepUnicodeStringToAnsiSize (IN PUNICODE_STRING String)
ULONG NTAPI	BasepAnsiStringToUnicodeSize (IN PANSI_STRING String)
NTSTATUS WINAPI	BaseGetNamedObjectDirectory (_Out_ PHANDLE DirectoryHandle)
HANDLE WINAPI	BasepGetNamedObjectDirectory (VOID)
VOID NTAPI	BasepLocateExeLdrEntry (IN PLDR_DATA_TABLE_ENTRY Entry, IN PVOID Context, OUT BOOLEAN *StopEnumeration)
PUNICODE_STRING WINAPI	Basep8BitStringToStaticUnicodeString (IN LPCSTR String)
BOOLEAN WINAPI	Basep8BitStringToDynamicUnicodeString (OUT PUNICODE_STRING UnicodeString, IN LPCSTR String)
VOID WINAPI	BasepAnsiStringToHeapUnicodeString (IN LPCSTR AnsiString, OUT LPWSTR *UnicodeString)
PLARGE_INTEGER WINAPI	BaseFormatTimeOut (OUT PLARGE_INTEGER Timeout, IN DWORD dwMilliseconds)
POBJECT_ATTRIBUTES WINAPI	BaseFormatObjectAttributes (OUT POBJECT_ATTRIBUTES ObjectAttributes, IN PSECURITY_ATTRIBUTES SecurityAttributes OPTIONAL, IN PUNICODE_STRING ObjectName)
NTSTATUS WINAPI	BaseCreateStack (_In_ HANDLE hProcess, _In_opt_ SIZE_T StackCommit, _In_opt_ SIZE_T StackReserve, _Out_ PINITIAL_TEB InitialTeb)
VOID WINAPI	BaseFreeThreadStack (_In_ HANDLE hProcess, _In_ PINITIAL_TEB InitialTeb)
VOID WINAPI	BaseInitializeContext (IN PCONTEXT Context, IN PVOID Parameter, IN PVOID StartAddress, IN PVOID StackAddress, IN ULONG ContextType)
PVOID WINAPI	BasepIsRealtimeAllowed (IN BOOLEAN Keep)
NTSTATUS WINAPI	BasepMapFile (IN LPCWSTR lpApplicationName, OUT PHANDLE hSection, OUT PUNICODE_STRING ApplicationName)
BOOLEAN WINAPI	Wow64EnableWow64FsRedirection (IN BOOLEAN Wow64EnableWow64FsRedirection)
BOOL WINAPI	Wow64DisableWow64FsRedirection (IN PVOID *OldValue)
BOOL WINAPI	Wow64RevertWow64FsRedirection (IN PVOID OldValue)
VOID WINAPI	SetFileApisToOEM (VOID)
VOID WINAPI	SetFileApisToANSI (VOID)
BOOL WINAPI	AreFileApisANSI (VOID)
VOID WINAPI	BaseMarkFileForDelete (IN HANDLE FileHandle, IN ULONG FileAttributes)
NTSTATUS WINAPI	BasepCheckWinSaferRestrictions (IN HANDLE UserToken, IN LPWSTR ApplicationName, IN HANDLE FileHandle, OUT PBOOLEAN InJob, OUT PHANDLE NewToken, OUT PHANDLE JobHandle)

Variables
UNICODE_STRING	Restricted = RTL_CONSTANT_STRING(L"Restricted")
BOOL	bIsFileApiAnsi = TRUE
PRTL_CONVERT_STRING	Basep8BitStringToUnicodeString = RtlAnsiStringToUnicodeString
PRTL_CONVERT_STRINGA	BasepUnicodeStringTo8BitString = RtlUnicodeStringToAnsiString
PRTL_COUNT_STRING	BasepUnicodeStringTo8BitSize = BasepUnicodeStringToAnsiSize
PRTL_COUNT_STRINGA	Basep8BitStringToUnicodeSize = BasepAnsiStringToUnicodeSize

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 19 of file utils.c.

Function Documentation

AreFileApisANSI()

BOOL WINAPI AreFileApisANSI

(

VOID

)

Definition at line 894 of file utils.c.

{
   return Basep8BitStringToUnicodeString == RtlAnsiStringToUnicodeString;
}

BaseCreateStack()

NTSTATUS WINAPI BaseCreateStack	(	_In_ HANDLE	hProcess,
		_In_opt_ SIZE_T	StackCommit,
		_In_opt_ SIZE_T	StackReserve,
		_Out_ PINITIAL_TEB	InitialTeb
	)

Definition at line 381 of file utils.c.

{
    NTSTATUS Status;
    PIMAGE_NT_HEADERS Headers;
    ULONG_PTR Stack;
    BOOLEAN UseGuard;
    ULONG PageSize, AllocationGranularity, Dummy;
    SIZE_T MinimumStackCommit, GuardPageSize;
 
    DPRINT("BaseCreateStack(hProcess: 0x%p, Max: 0x%lx, Current: 0x%lx)\n",
            hProcess, StackReserve, StackCommit);
 
    /* Read page size */
    PageSize = BaseStaticServerData->SysInfo.PageSize;
    AllocationGranularity = BaseStaticServerData->SysInfo.AllocationGranularity;
 
    /* Get the Image Headers */
    Headers = RtlImageNtHeader(NtCurrentPeb()->ImageBaseAddress);
    if (!Headers) return STATUS_INVALID_IMAGE_FORMAT;
 
    if (StackReserve == 0)
        StackReserve = Headers->OptionalHeader.SizeOfStackReserve;
 
    if (StackCommit == 0)
    {
        StackCommit = Headers->OptionalHeader.SizeOfStackCommit;
    }
    /* Check if the commit is higher than the reserve */
    else if (StackCommit >= StackReserve)
    {
        /* Grow the reserve beyond the commit, up to 1MB alignment */
        StackReserve = ROUND_UP(StackCommit, 1024 * 1024);
    }
 
    /* Align everything to Page Size */
    StackCommit = ROUND_UP(StackCommit, PageSize);
    StackReserve = ROUND_UP(StackReserve, AllocationGranularity);
 
    MinimumStackCommit = NtCurrentPeb()->MinimumStackCommit;
    if ((MinimumStackCommit != 0) && (StackCommit < MinimumStackCommit))
    {
        StackCommit = MinimumStackCommit;
    }
 
    /* Check if the commit is higher than the reserve */
    if (StackCommit >= StackReserve)
    {
        /* Grow the reserve beyond the commit, up to 1MB alignment */
        StackReserve = ROUND_UP(StackCommit, 1024 * 1024);
    }
 
    /* Align everything to Page Size */
    StackCommit = ROUND_UP(StackCommit, PageSize);
    StackReserve = ROUND_UP(StackReserve, AllocationGranularity);
 
    /* Reserve memory for the stack */
    Stack = 0;
    Status = NtAllocateVirtualMemory(hProcess,
                                     (PVOID*)&Stack,
                                     0,
                                     &StackReserve,
                                     MEM_RESERVE,
                                     PAGE_READWRITE);
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("Failure to reserve stack: %lx\n", Status);
        return Status;
    }
 
    /* Now set up some basic Initial TEB Parameters */
    InitialTeb->AllocatedStackBase = (PVOID)Stack;
    InitialTeb->StackBase = (PVOID)(Stack + StackReserve);
    InitialTeb->PreviousStackBase = NULL;
    InitialTeb->PreviousStackLimit = NULL;
 
    /* Update the stack position */
    Stack += StackReserve - StackCommit;
 
    /* Check if we can add a guard page */
    if (StackReserve >= StackCommit + PageSize)
    {
        Stack -= PageSize;
        StackCommit += PageSize;
        UseGuard = TRUE;
    }
    else
    {
        UseGuard = FALSE;
    }
 
    /* Allocate memory for the stack */
    Status = NtAllocateVirtualMemory(hProcess,
                                     (PVOID*)&Stack,
                                     0,
                                     &StackCommit,
                                     MEM_COMMIT,
                                     PAGE_READWRITE);
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("Failure to allocate stack\n");
        GuardPageSize = 0;
        NtFreeVirtualMemory(hProcess, (PVOID*)&Stack, &GuardPageSize, MEM_RELEASE);
        return Status;
    }
 
    /* Now set the current Stack Limit */
    InitialTeb->StackLimit = (PVOID)Stack;
 
    /* Create a guard page if needed */
    if (UseGuard)
    {
        GuardPageSize = PageSize;
        Status = NtProtectVirtualMemory(hProcess,
                                        (PVOID*)&Stack,
                                        &GuardPageSize,
                                        PAGE_GUARD | PAGE_READWRITE,
                                        &Dummy);
        if (!NT_SUCCESS(Status))
        {
            DPRINT1("Failure to set guard page\n");
            return Status;
        }
 
        /* Update the Stack Limit keeping in mind the Guard Page */
        InitialTeb->StackLimit = (PVOID)((ULONG_PTR)InitialTeb->StackLimit +
                                         GuardPageSize);
    }
 
    /* We are done! */
    return STATUS_SUCCESS;
}

Referenced by CreateFiberEx(), CreateProcessInternalW(), and CreateRemoteThread().

BaseFormatObjectAttributes()

POBJECT_ATTRIBUTES WINAPI BaseFormatObjectAttributes	(	OUT POBJECT_ATTRIBUTES	ObjectAttributes,
		IN PSECURITY_ATTRIBUTES SecurityAttributes	OPTIONAL,
		IN PUNICODE_STRING	ObjectName
	)

Definition at line 331 of file utils.c.

{
    ULONG Attributes;
    HANDLE RootDirectory;
    PVOID SecurityDescriptor;
    DPRINT("BaseFormatObjectAttributes. Security: %p, Name: %p\n",
            SecurityAttributes, ObjectName);
 
    /* Get the attributes if present */
    if (SecurityAttributes)
    {
        Attributes = SecurityAttributes->bInheritHandle ? OBJ_INHERIT : 0;
        SecurityDescriptor = SecurityAttributes->lpSecurityDescriptor;
    }
    else
    {
        if (!ObjectName) return NULL;
        Attributes = 0;
        SecurityDescriptor = NULL;
    }
 
    if (ObjectName)
    {
        Attributes |= OBJ_OPENIF;
        RootDirectory = BasepGetNamedObjectDirectory();
    }
    else
    {
        RootDirectory = NULL;
    }
 
    /* Create the Object Attributes */
    InitializeObjectAttributes(ObjectAttributes,
                               ObjectName,
                               Attributes,
                               RootDirectory,
                               SecurityDescriptor);
    DPRINT("Attributes: %lx, RootDirectory: %p, SecurityDescriptor: %p\n",
            Attributes, RootDirectory, SecurityDescriptor);
    return ObjectAttributes;
}

Referenced by CreateFileMappingW(), CreateProcessInternalW(), and CreateRemoteThread().

BaseFormatTimeOut()

PLARGE_INTEGER WINAPI BaseFormatTimeOut	(	OUT PLARGE_INTEGER	Timeout,
		IN DWORD	dwMilliseconds
	)

Definition at line 315 of file utils.c.

{
    /* Check if this is an infinite wait, which means no timeout argument */
    if (dwMilliseconds == INFINITE) return NULL;
 
    /* Otherwise, convert the time to NT Format */
    Timeout->QuadPart = dwMilliseconds * -10000LL;
    return Timeout;
}

Referenced by GetQueuedCompletionStatus(), SignalObjectAndWait(), SleepEx(), WaitForDebugEvent(), WaitForMultipleObjectsEx(), and WaitForSingleObjectEx().

BaseFreeThreadStack()

VOID WINAPI BaseFreeThreadStack	(	_In_ HANDLE	hProcess,
		_In_ PINITIAL_TEB	InitialTeb
	)

Definition at line 522 of file utils.c.

{
    SIZE_T Dummy = 0;
 
    /* Free the Stack */
    NtFreeVirtualMemory(hProcess,
                        &InitialTeb->AllocatedStackBase,
                        &Dummy,
                        MEM_RELEASE);
}

Referenced by CreateRemoteThread().

BaseGetNamedObjectDirectory()

NTSTATUS WINAPI BaseGetNamedObjectDirectory

(

_Out_ PHANDLE

DirectoryHandle

)

Definition at line 64 of file utils.c.

{
    OBJECT_ATTRIBUTES ObjectAttributes;
    NTSTATUS Status;
    HANDLE DirHandle, BnoHandle, Token, NewToken;
 
    *DirectoryHandle = BaseNamedObjectDirectory;
 
    if (BaseNamedObjectDirectory)
    {
        return STATUS_SUCCESS;
    }
 
    if (NtCurrentTeb()->IsImpersonating)
    {
        Status = NtOpenThreadToken(NtCurrentThread(),
                                   TOKEN_IMPERSONATE,
                                   TRUE,
                                   &Token);
        if (!NT_SUCCESS(Status))
        {
            return Status;
        }
 
        NewToken = NULL;
        Status = NtSetInformationThread(NtCurrentThread(),
                                        ThreadImpersonationToken,
                                        &NewToken,
                                        sizeof(HANDLE));
        if (!NT_SUCCESS (Status))
        {
            NtClose(Token);
            return Status;
        }
    }
    else
    {
        Token = NULL;
    }
 
    RtlAcquirePebLock();
    if (BaseNamedObjectDirectory) goto Quickie;
 
    InitializeObjectAttributes(&ObjectAttributes,
                               &BaseStaticServerData->NamedObjectDirectory,
                               OBJ_CASE_INSENSITIVE,
                               NULL,
                               NULL);
 
    Status = NtOpenDirectoryObject(&BnoHandle,
                                   DIRECTORY_QUERY |
                                   DIRECTORY_TRAVERSE |
                                   DIRECTORY_CREATE_OBJECT |
                                   DIRECTORY_CREATE_SUBDIRECTORY,
                                   &ObjectAttributes);
    if (!NT_SUCCESS(Status))
    {
        Status = NtOpenDirectoryObject(&DirHandle,
                                       DIRECTORY_TRAVERSE,
                                       &ObjectAttributes);
 
        if (NT_SUCCESS(Status))
        {
            InitializeObjectAttributes(&ObjectAttributes,
                                       (PUNICODE_STRING)&Restricted,
                                       OBJ_CASE_INSENSITIVE,
                                       DirHandle,
                                       NULL);
 
            Status = NtOpenDirectoryObject(&BnoHandle,
                                           DIRECTORY_QUERY |
                                           DIRECTORY_TRAVERSE |
                                           DIRECTORY_CREATE_OBJECT |
                                           DIRECTORY_CREATE_SUBDIRECTORY,
                                           &ObjectAttributes);
            NtClose(DirHandle);
 
        }
    }
 
    if (NT_SUCCESS(Status)) BaseNamedObjectDirectory = BnoHandle;
 
Quickie:
 
    RtlReleasePebLock();
 
    if (Token)
    {
        NtSetInformationThread(NtCurrentThread(),
                               ThreadImpersonationToken,
                               &Token,
                               sizeof(Token));
 
        NtClose(Token);
    }
 
    *DirectoryHandle = BaseNamedObjectDirectory;
    return STATUS_SUCCESS;
}

Referenced by BasepGetNamedObjectDirectory().

BaseInitializeContext()

VOID WINAPI BaseInitializeContext	(	IN PCONTEXT	Context,
		IN PVOID	Parameter,
		IN PVOID	StartAddress,
		IN PVOID	StackAddress,
		IN ULONG	ContextType
	)

Definition at line 540 of file utils.c.

{
#ifdef _M_IX86
    ULONG ContextFlags;
    DPRINT("BaseInitializeContext: %p\n", Context);
 
    /* Setup the Initial Win32 Thread Context */
    Context->Eax = (ULONG)StartAddress;
    Context->Ebx = (ULONG)Parameter;
    Context->Esp = (ULONG)StackAddress;
    /* The other registers are undefined */
 
    /* Setup the Segments */
    Context->SegFs = KGDT_R3_TEB;
    Context->SegEs = KGDT_R3_DATA;
    Context->SegDs = KGDT_R3_DATA;
    Context->SegCs = KGDT_R3_CODE;
    Context->SegSs = KGDT_R3_DATA;
    Context->SegGs = 0;
 
    /* Set the Context Flags */
    ContextFlags = Context->ContextFlags;
    Context->ContextFlags = CONTEXT_FULL;
 
    /* Give it some room for the Parameter */
    Context->Esp -= sizeof(PVOID);
 
    /* Set the EFLAGS */
    Context->EFlags = 0x3000; /* IOPL 3 */
 
    /* What kind of context is being created? */
    if (ContextType == 1)
    {
        /* For Threads */
        Context->Eip = (ULONG)BaseThreadStartupThunk;
    }
    else if (ContextType == 2)
    {
        /* This is a fiber: make space for the return address */
        Context->Esp -= sizeof(PVOID);
        *((PVOID*)Context->Esp) = BaseFiberStartup;
 
        /* Is FPU state required? */
        Context->ContextFlags |= ContextFlags;
        if ((ContextFlags & CONTEXT_FLOATING_POINT) == CONTEXT_FLOATING_POINT)
        {
            /* Set an initial state */
            Context->FloatSave.ControlWord = 0x27F;
            Context->FloatSave.StatusWord = 0;
            Context->FloatSave.TagWord = 0xFFFF;
            Context->FloatSave.ErrorOffset = 0;
            Context->FloatSave.ErrorSelector = 0;
            Context->FloatSave.DataOffset = 0;
            Context->FloatSave.DataSelector = 0;
            if (SharedUserData->ProcessorFeatures[PF_XMMI_INSTRUCTIONS_AVAILABLE])
                Context->Dr6 = 0x1F80;
        }
    }
    else
    {
        /* For first thread in a Process */
        Context->Eip = (ULONG)BaseProcessStartThunk;
    }
 
#elif defined(_M_AMD64)
    DPRINT("BaseInitializeContext: %p\n", Context);
    ASSERT(((ULONG_PTR)StackAddress & 15) == 0);
 
    RtlZeroMemory(Context, sizeof(*Context));
 
    /* Setup the Initial Win32 Thread Context */
    Context->Rcx = (ULONG_PTR)StartAddress;
    Context->Rdx = (ULONG_PTR)Parameter;
    Context->Rsp = (ULONG_PTR)StackAddress;
 
    /* Setup the Segments */
    Context->SegGs = KGDT64_R3_DATA | RPL_MASK;
    Context->SegEs = KGDT64_R3_DATA | RPL_MASK;
    Context->SegDs = KGDT64_R3_DATA | RPL_MASK;
    Context->SegCs = KGDT64_R3_CODE | RPL_MASK;
    Context->SegSs = KGDT64_R3_DATA | RPL_MASK;
    Context->SegFs = KGDT64_R3_CMTEB | RPL_MASK;
 
    /* Set the EFLAGS */
    Context->EFlags = 0x3000 | EFLAGS_INTERRUPT_MASK; /* IOPL 3 */
 
    /* Set MXCSR */
    Context->MxCsr = INITIAL_MXCSR;
 
    if (ContextType == 1)      /* For Threads */
    {
        Context->Rip = (ULONG_PTR)BaseThreadStartup;
    }
    else if (ContextType == 2) /* For Fibers */
    {
        Context->Rip = (ULONG_PTR)BaseFiberStartup;
    }
    else                       /* For first thread in a Process */
    {
        Context->Rip = (ULONG_PTR)BaseProcessStartup;
    }
 
    /* Set the Context Flags */
    Context->ContextFlags = CONTEXT_FULL;
#elif defined(_M_ARM)
    DPRINT("BaseInitializeContext: %p\n", Context);
 
    // FIXME: check if this is correct!
    /* Setup the Initial Win32 Thread Context */
    Context->R0 = (ULONG_PTR)StartAddress;
    Context->R1 = (ULONG_PTR)Parameter;
    Context->Sp = (ULONG_PTR)StackAddress;
 
    if (ContextType == 1)      /* For Threads */
    {
        Context->Pc = (ULONG_PTR)BaseThreadStartupThunk;
    }
    else if (ContextType == 2) /* For Fibers */
    {
        Context->Pc = (ULONG_PTR)BaseFiberStartup;
    }
    else                       /* For first thread in a Process */
    {
        Context->Pc = (ULONG_PTR)BaseProcessStartThunk;
    }
 
    /* Set the Context Flags */
    Context->ContextFlags = CONTEXT_FULL;
 
    /* Give it some room for the Parameter */
    Context->Sp -= sizeof(PVOID);
#else
#warning Unknown architecture
    UNIMPLEMENTED;
    DbgBreakPoint();
#endif
}

Referenced by CreateFiberEx(), CreateProcessInternalW(), and CreateRemoteThread().

BaseMarkFileForDelete()

VOID WINAPI BaseMarkFileForDelete	(	IN HANDLE	FileHandle,
		IN ULONG	FileAttributes
	)

Definition at line 904 of file utils.c.

{
    IO_STATUS_BLOCK IoStatusBlock;
    FILE_BASIC_INFORMATION FileBasicInfo;
    FILE_DISPOSITION_INFORMATION FileDispositionInfo;
 
    /* If no attributes were given, get them */
    if (!FileAttributes)
    {
        FileBasicInfo.FileAttributes = 0;
        NtQueryInformationFile(FileHandle,
                               &IoStatusBlock,
                               &FileBasicInfo,
                               sizeof(FileBasicInfo),
                               FileBasicInformation);
        FileAttributes = FileBasicInfo.FileAttributes;
    }
 
    /* If file is marked as RO, reset its attributes */
    if (FileAttributes & FILE_ATTRIBUTE_READONLY)
    {
        RtlZeroMemory(&FileBasicInfo, sizeof(FileBasicInfo));
        FileBasicInfo.FileAttributes = FILE_ATTRIBUTE_NORMAL;
        NtSetInformationFile(FileHandle,
                             &IoStatusBlock,
                             &FileBasicInfo,
                             sizeof(FileBasicInfo),
                             FileBasicInformation);
    }
 
    /* Finally, mark the file for deletion */
    FileDispositionInfo.DeleteFile = TRUE;
    NtSetInformationFile(FileHandle,
                         &IoStatusBlock,
                         &FileDispositionInfo,
                         sizeof(FileDispositionInfo),
                         FileDispositionInformation);
}

Referenced by CreateDirectoryExW().

Basep8BitStringToDynamicUnicodeString()

BOOLEAN WINAPI Basep8BitStringToDynamicUnicodeString	(	OUT PUNICODE_STRING	UnicodeString,
		IN LPCSTR	String
	)

Definition at line 252 of file utils.c.

{
    ANSI_STRING AnsiString;
    NTSTATUS Status;
 
    /* Initialize an ANSI String */
    Status = RtlInitAnsiStringEx(&AnsiString, String);
    if (!NT_SUCCESS(Status))
    {
        Status = STATUS_BUFFER_OVERFLOW;
    }
    else
    {
        /* Convert it */
        Status = Basep8BitStringToUnicodeString(UnicodeString, &AnsiString, TRUE);
    }
 
    if (NT_SUCCESS(Status)) return TRUE;
 
    if (Status == STATUS_BUFFER_OVERFLOW)
    {
        SetLastError(ERROR_FILENAME_EXCED_RANGE);
    }
    else
    {
        BaseSetLastNTError(Status);
    }
 
    return FALSE;
}

Referenced by CopyFileA(), CopyFileExA(), CreateDirectoryExA(), CreateHardLinkA(), GetFullPathNameA(), GetLongPathNameA(), GetShortPathNameA(), GetTempFileNameA(), MoveFileWithProgressA(), ReplaceFileA(), SearchPathA(), SetVolumeLabelA(), and WaitNamedPipeA().

Basep8BitStringToStaticUnicodeString()

PUNICODE_STRING WINAPI Basep8BitStringToStaticUnicodeString

(

IN LPCSTR

String

)

Definition at line 215 of file utils.c.

{
    PUNICODE_STRING StaticString = &(NtCurrentTeb()->StaticUnicodeString);
    ANSI_STRING AnsiString;
    NTSTATUS Status;
 
    /* Initialize an ANSI String */
    Status = RtlInitAnsiStringEx(&AnsiString, String);
    if (!NT_SUCCESS(Status))
    {
        Status = STATUS_BUFFER_OVERFLOW;
    }
    else
    {
        /* Convert it */
        Status = Basep8BitStringToUnicodeString(StaticString, &AnsiString, FALSE);
    }
 
    if (NT_SUCCESS(Status)) return StaticString;
 
    if (Status == STATUS_BUFFER_OVERFLOW)
    {
        SetLastError(ERROR_FILENAME_EXCED_RANGE);
    }
    else
    {
        BaseSetLastNTError(Status);
    }
 
    return NULL;
}

Referenced by CopyFileA(), CopyFileExA(), CreateDirectoryA(), CreateDirectoryExA(), CreateHardLinkA(), DeleteFileA(), FindFirstFileA(), FindFirstFileExA(), GetDiskFreeSpaceA(), GetDiskFreeSpaceExA(), GetDriveTypeA(), GetModuleHandleA(), GetModuleHandleExA(), GetTempFileNameA(), GetVolumeInformationA(), GetVolumeNameForVolumeMountPointA(), GetVolumePathNameA(), GetVolumePathNamesForVolumeNameA(), LoadLibraryExA(), RemoveDirectoryA(), SearchPathA(), SetCurrentDirectoryA(), and SetVolumeLabelA().

BasepAnsiStringToHeapUnicodeString()

VOID WINAPI BasepAnsiStringToHeapUnicodeString	(	IN LPCSTR	AnsiString,
		OUT LPWSTR *	UnicodeString
	)

Definition at line 290 of file utils.c.

{
    ANSI_STRING AnsiTemp;
    UNICODE_STRING UnicodeTemp;
 
    DPRINT("BasepAnsiStringToHeapUnicodeString\n");
 
    /* First create the ANSI_STRING */
    RtlInitAnsiString(&AnsiTemp, AnsiString);
 
    if (NT_SUCCESS(RtlAnsiStringToUnicodeString(&UnicodeTemp,
                                                &AnsiTemp,
                                                TRUE)))
    {
        *UnicodeString = UnicodeTemp.Buffer;
    }
    else
    {
        *UnicodeString = NULL;
    }
}

BasepAnsiStringToUnicodeSize()

ULONG NTAPI BasepAnsiStringToUnicodeSize

(

IN PANSI_STRING

String

)

Definition at line 57 of file utils.c.

{
    return RtlAnsiStringToUnicodeSize(String);
}

Referenced by SetFileApisToANSI().

BasepCheckWinSaferRestrictions()

NTSTATUS WINAPI BasepCheckWinSaferRestrictions	(	IN HANDLE	UserToken,
		IN LPWSTR	ApplicationName,
		IN HANDLE	FileHandle,
		OUT PBOOLEAN	InJob,
		OUT PHANDLE	NewToken,
		OUT PHANDLE	JobHandle
	)

Definition at line 949 of file utils.c.

{
    NTSTATUS Status;
 
    /* Validate that there's a name */
    if ((ApplicationName) && *(ApplicationName))
    {
        /* Validate that the required output parameters are there */
        if ((InJob) && (NewToken) && (JobHandle))
        {
            /* Do the work (one day...) */
            DPRINT("BasepCheckWinSaferRestrictions is UNIMPLEMENTED\n");
            Status = STATUS_SUCCESS;
        }
        else
        {
            /* Act as if SEH hit this */
            Status = STATUS_ACCESS_VIOLATION;
        }
    }
    else
    {
        /* Input is invalid */
        Status = STATUS_INVALID_PARAMETER;
    }
 
    /* Return the status */
    return Status;
}

Referenced by CreateProcessInternalW().

BasepGetNamedObjectDirectory()

HANDLE WINAPI BasepGetNamedObjectDirectory

(

VOID

)

Definition at line 167 of file utils.c.

{
    NTSTATUS Status;
    HANDLE DirectoryHandle;
 
    Status = BaseGetNamedObjectDirectory(&DirectoryHandle);
    if (!NT_SUCCESS(Status))
    {
        return NULL;
    }
 
    return DirectoryHandle;
}

Referenced by BaseFormatObjectAttributes(), and OpenFileMappingW().

BasepIsRealtimeAllowed()

PVOID WINAPI BasepIsRealtimeAllowed

(

IN BOOLEAN

Keep

)

Definition at line 692 of file utils.c.

{
    ULONG Privilege = SE_INC_BASE_PRIORITY_PRIVILEGE;
    PVOID State;
    NTSTATUS Status;
 
    Status = RtlAcquirePrivilege(&Privilege, 1, 0, &State);
    if (!NT_SUCCESS(Status)) return NULL;
 
    if (!Keep)
    {
        RtlReleasePrivilege(State);
        State = (PVOID)TRUE;
    }
 
    return State;
}

Referenced by CreateProcessInternalW(), and SetPriorityClass().

BasepLocateExeLdrEntry()

VOID NTAPI BasepLocateExeLdrEntry	(	IN PLDR_DATA_TABLE_ENTRY	Entry,
		IN PVOID	Context,
		OUT BOOLEAN *	StopEnumeration
	)

Definition at line 183 of file utils.c.

{
    /* Make sure we get Entry, Context and valid StopEnumeration pointer */
    ASSERT(Entry);
    ASSERT(Context);
    ASSERT(StopEnumeration);
 
    /* If entry is already found - signal to stop */
    if (BasepExeLdrEntry)
    {
        *StopEnumeration = TRUE;
        return;
    }
 
    /* Otherwise keep enumerating until we find a match */
    if (Entry->DllBase == Context)
    {
        /* It matches, so remember the ldr entry */
        BasepExeLdrEntry = Entry;
 
        /* And stop enumeration */
        *StopEnumeration = TRUE;
    }
}

Referenced by BasepComputeProcessPath(), and LoadLibraryExW().

BasepMapFile()

NTSTATUS WINAPI BasepMapFile	(	IN LPCWSTR	lpApplicationName,
		OUT PHANDLE	hSection,
		OUT PUNICODE_STRING	ApplicationName
	)

Definition at line 715 of file utils.c.

{
    RTL_RELATIVE_NAME_U RelativeName;
    OBJECT_ATTRIBUTES ObjectAttributes;
    NTSTATUS Status;
    HANDLE hFile = NULL;
    IO_STATUS_BLOCK IoStatusBlock;
 
    DPRINT("BasepMapFile\n");
 
    /* Zero out the Relative Directory */
    RelativeName.ContainingDirectory = NULL;
 
    /* Find the application name */
    if (!RtlDosPathNameToNtPathName_U(lpApplicationName,
                                      ApplicationName,
                                      NULL,
                                      &RelativeName))
    {
        return STATUS_OBJECT_PATH_NOT_FOUND;
    }
 
    DPRINT("ApplicationName %wZ\n", ApplicationName);
    DPRINT("RelativeName %wZ\n", &RelativeName.RelativeName);
 
    /* Did we get a relative name? */
    if (RelativeName.RelativeName.Length)
    {
        ApplicationName = &RelativeName.RelativeName;
    }
 
    /* Initialize the Object Attributes */
    InitializeObjectAttributes(&ObjectAttributes,
                               ApplicationName,
                               OBJ_CASE_INSENSITIVE,
                               RelativeName.ContainingDirectory,
                               NULL);
 
    /* Try to open the executable */
    Status = NtOpenFile(&hFile,
                        SYNCHRONIZE | FILE_EXECUTE | FILE_READ_DATA,
                        &ObjectAttributes,
                        &IoStatusBlock,
                        FILE_SHARE_DELETE | FILE_SHARE_READ,
                        FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE);
    RtlReleaseRelativeName(&RelativeName);
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("Failed to open file\n");
        BaseSetLastNTError(Status);
        return Status;
    }
 
    /* Create a section for this file */
    Status = NtCreateSection(hSection,
                             SECTION_ALL_ACCESS,
                             NULL,
                             NULL,
                             PAGE_EXECUTE,
                             SEC_IMAGE,
                             hFile);
    NtClose(hFile);
 
    /* Return status */
    DPRINT("Section: %p for file: %p\n", *hSection, hFile);
    return Status;
}

BasepOemStringToUnicodeSize()

ULONG NTAPI BasepOemStringToUnicodeSize

(

IN PANSI_STRING

String

)

Definition at line 43 of file utils.c.

{
    return RtlOemStringToUnicodeSize(String);
}

Referenced by SetFileApisToOEM().

BasepUnicodeStringToAnsiSize()

ULONG NTAPI BasepUnicodeStringToAnsiSize

(

IN PUNICODE_STRING

String

)

Definition at line 50 of file utils.c.

{
    return RtlUnicodeStringToAnsiSize(String);
}

Referenced by SetFileApisToANSI().

BasepUnicodeStringToOemSize()

ULONG NTAPI BasepUnicodeStringToOemSize

(

IN PUNICODE_STRING

String

)

Definition at line 36 of file utils.c.

{
    return RtlUnicodeStringToOemSize(String);
}

Referenced by SetFileApisToOEM().

SetFileApisToANSI()

VOID WINAPI SetFileApisToANSI

(

VOID

)

Definition at line 877 of file utils.c.

{
    /* Set the correct Base Api */
    Basep8BitStringToUnicodeString = RtlAnsiStringToUnicodeString;
    BasepUnicodeStringTo8BitString = RtlUnicodeStringToAnsiString;
    BasepUnicodeStringTo8BitSize = BasepUnicodeStringToAnsiSize;
    Basep8BitStringToUnicodeSize = BasepAnsiStringToUnicodeSize;
 
    /* FIXME: Old, deprecated way */
    bIsFileApiAnsi = TRUE;
}

SetFileApisToOEM()

VOID WINAPI SetFileApisToOEM

(

VOID

)

Definition at line 859 of file utils.c.

{
    /* Set the correct Base Api */
    Basep8BitStringToUnicodeString = (PRTL_CONVERT_STRING)RtlOemStringToUnicodeString;
    BasepUnicodeStringTo8BitString = RtlUnicodeStringToOemString;
    BasepUnicodeStringTo8BitSize = BasepUnicodeStringToOemSize;
    Basep8BitStringToUnicodeSize = BasepOemStringToUnicodeSize;
 
    /* FIXME: Old, deprecated way */
    bIsFileApiAnsi = FALSE;
}

Wow64DisableWow64FsRedirection()

BOOL WINAPI Wow64DisableWow64FsRedirection

(

IN PVOID *

OldValue

)

Definition at line 813 of file utils.c.

{
    NTSTATUS Status;
    BOOL Result;
 
    Status = RtlWow64EnableFsRedirectionEx((PVOID)TRUE, OldValue);
    if (NT_SUCCESS(Status))
    {
        Result = TRUE;
    }
    else
    {
        BaseSetLastNTError(Status);
        Result = FALSE;
    }
    return Result;
}

Referenced by alloc_console(), create_pseudo_console(), create_server(), create_surrogate_server(), custom_start_server(), get_systemdirectory(), msi_disable_fs_redirection(), run_winemenubuilder(), test_peb_teb(), and test_wow64().

Wow64EnableWow64FsRedirection()

BOOLEAN WINAPI Wow64EnableWow64FsRedirection

(

IN BOOLEAN

Wow64EnableWow64FsRedirection

)

Definition at line 790 of file utils.c.

{
    NTSTATUS Status;
    BOOL Result;
 
    Status = RtlWow64EnableFsRedirection(Wow64EnableWow64FsRedirection);
    if (NT_SUCCESS(Status))
    {
        Result = TRUE;
    }
    else
    {
        BaseSetLastNTError(Status);
        Result = FALSE;
    }
    return Result;
}

Referenced by Wow64EnableWow64FsRedirection().

Wow64RevertWow64FsRedirection()

BOOL WINAPI Wow64RevertWow64FsRedirection

(

IN PVOID

OldValue

)

Definition at line 836 of file utils.c.

{
    NTSTATUS Status;
    BOOL Result;
 
    Status = RtlWow64EnableFsRedirectionEx(OldValue, &OldValue);
    if (NT_SUCCESS(Status))
    {
        Result = TRUE;
    }
    else
    {
        BaseSetLastNTError(Status);
        Result = FALSE;
    }
    return Result;
}

Referenced by alloc_console(), create_pseudo_console(), create_server(), create_surrogate_server(), custom_start_server(), get_systemdirectory(), msi_revert_fs_redirection(), run_winemenubuilder(), test_peb_teb(), and test_wow64().

Variable Documentation

Basep8BitStringToUnicodeSize

PRTL_COUNT_STRINGA Basep8BitStringToUnicodeSize = BasepAnsiStringToUnicodeSize

Definition at line 30 of file utils.c.

Referenced by SetFileApisToANSI(), and SetFileApisToOEM().

Basep8BitStringToUnicodeString

PRTL_CONVERT_STRING Basep8BitStringToUnicodeString = RtlAnsiStringToUnicodeString

Definition at line 27 of file utils.c.

Referenced by AreFileApisANSI(), Basep8BitStringToDynamicUnicodeString(), Basep8BitStringToStaticUnicodeString(), DllMain(), SetDllDirectoryA(), SetFileApisToANSI(), and SetFileApisToOEM().

BasepUnicodeStringTo8BitSize

PRTL_COUNT_STRING BasepUnicodeStringTo8BitSize = BasepUnicodeStringToAnsiSize

Definition at line 29 of file utils.c.

Referenced by GetDllDirectoryA(), SetFileApisToANSI(), and SetFileApisToOEM().

BasepUnicodeStringTo8BitString

PRTL_CONVERT_STRINGA BasepUnicodeStringTo8BitString = RtlUnicodeStringToAnsiString

Definition at line 28 of file utils.c.

Referenced by FindFirstFileA(), FindFirstFileExA(), FindNextFileA(), GetCurrentDirectoryA(), GetDllDirectoryA(), GetFullPathNameA(), GetLongPathNameA(), GetModuleFileNameA(), GetShortPathNameA(), GetSystemDirectoryA(), GetSystemWindowsDirectoryA(), GetTempFileNameA(), IsShortName_U(), SetFileApisToANSI(), and SetFileApisToOEM().

bIsFileApiAnsi

BOOL bIsFileApiAnsi = TRUE

Definition at line 25 of file utils.c.

Referenced by CheckNameLegalDOS8Dot3A(), OpenFile(), SetFileApisToANSI(), and SetFileApisToOEM().

Restricted

UNICODE_STRING Restricted = RTL_CONSTANT_STRING(L"Restricted")

Definition at line 24 of file utils.c.

Referenced by BaseGetNamedObjectDirectory(), SepCompareTokens(), and SepSidInTokenEx().