ReactOS 0.4.15-dev-7889-g76290a6
mapping.h File Reference
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Classes

struct  _ENGSECTION
 
struct  _FILEVIEW
 
struct  _FONTFILEVIEW
 

Typedefs

typedef struct _ENGSECTION ENGSECTION
 
typedef struct _ENGSECTIONPENGSECTION
 
typedef struct _FILEVIEW FILEVIEW
 
typedef struct _FILEVIEWPFILEVIEW
 
typedef struct _FONTFILEVIEW FONTFILEVIEW
 
typedef struct _FONTFILEVIEWPFONTFILEVIEW
 

Enumerations

enum  { FVF_SYSTEMROOT = 1 , FVF_READONLY = 2 , FVF_FONTFILE = 4 }
 

Functions

PVOID NTAPI EngMapSectionView (_In_ HANDLE hSection, _In_ SIZE_T cjSize, _In_ ULONG cjOffset, _Out_ PHANDLE phSecure)
 
VOID NTAPI EngUnmapSectionView (_In_ PVOID pvBits, _In_ ULONG cjOffset, _In_ HANDLE hSecure)
 
PVOID NTAPI EngCreateSection (_In_ ULONG fl, _In_ SIZE_T cjSize, _In_ ULONG ulTag)
 
 _Success_ (return!=FALSE) BOOL APIENTRY EngMapSection(_In_ PVOID pvSection
 
_In_ BOOL _In_ HANDLE _When_ (bMap, _Outptr_) PVOID *pvBaseAddress)
 
BOOL APIENTRY EngFreeSectionMem (_In_opt_ PVOID pvSection, _In_opt_ PVOID pvMappedBase)
 
_Check_return_ PFILEVIEW NTAPI EngLoadModuleEx (_In_z_ LPWSTR pwsz, _In_ ULONG cjSizeOfModule, _In_ FLONG fl)
 

Variables

_In_ BOOL bMap
 
_In_ BOOL _In_ HANDLE hProcess
 
_Check_return_ _In_ ULONG fl
 
_Check_return_ _In_ ULONG _In_ SIZE_T cjSize
 
_Check_return_ _In_ ULONG _In_ SIZE_T _In_ ULONG ulTag
 

Typedef Documentation

◆ ENGSECTION

◆ FILEVIEW

◆ FONTFILEVIEW

◆ PENGSECTION

◆ PFILEVIEW

◆ PFONTFILEVIEW

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
FVF_SYSTEMROOT 
FVF_READONLY 
FVF_FONTFILE 

Definition at line 36 of file mapping.h.

37{
39 FVF_READONLY = 2,
40 FVF_FONTFILE = 4,
41};
@ FVF_READONLY
Definition: mapping.h:39
@ FVF_FONTFILE
Definition: mapping.h:40
@ FVF_SYSTEMROOT
Definition: mapping.h:38

Function Documentation

◆ _Success_()

_Success_ ( return!  = FALSE)

◆ _When_()

_In_ BOOL _In_ HANDLE _When_ ( bMap  ,
_Outptr_   
)

◆ EngCreateSection()

PVOID NTAPI EngCreateSection ( _In_ ULONG  fl,
_In_ SIZE_T  cjSize,
_In_ ULONG  ulTag 
)

Definition at line 91 of file mapping.c.

95{
97 PENGSECTION pSection;
98 PVOID pvSectionObject;
99 LARGE_INTEGER liSize;
100
101 /* Allocate a section object */
102 pSection = EngAllocMem(0, sizeof(ENGSECTION), 'stsU');
103 if (!pSection) return NULL;
104
105 liSize.QuadPart = cjSize;
106 Status = MmCreateSection(&pvSectionObject,
108 NULL,
109 &liSize,
112 NULL,
113 NULL);
114 if (!NT_SUCCESS(Status))
115 {
116 DPRINT1("Failed to create a section Status=0x%x\n", Status);
117 EngFreeMem(pSection);
118 return NULL;
119 }
120
121 /* Set the fields of the section */
122 pSection->ulTag = ulTag;
123 pSection->pvSectionObject = pvSectionObject;
124 pSection->pvMappedBase = NULL;
125 pSection->cjViewSize = cjSize;
126
127 return pSection;
128}
LONG NTSTATUS
Definition: precomp.h:26
#define DPRINT1
Definition: precomp.h:8
#define NULL
Definition: types.h:112
#define NT_SUCCESS(StatCode)
Definition: apphelp.c:32
Status
Definition: gdiplustypes.h:25
#define SEC_COMMIT
Definition: mmtypes.h:100
#define PAGE_READWRITE
Definition: nt_native.h:1304
#define SECTION_ALL_ACCESS
Definition: nt_native.h:1293
#define EngFreeMem
Definition: polytest.cpp:56
void * EngAllocMem(int zero, unsigned long size, int tag=0)
Definition: polytest.cpp:70
NTSTATUS NTAPI MmCreateSection(OUT PVOID *Section, IN ACCESS_MASK DesiredAccess, IN POBJECT_ATTRIBUTES ObjectAttributes OPTIONAL, IN PLARGE_INTEGER MaximumSize, IN ULONG SectionPageProtection, IN ULONG AllocationAttributes, IN HANDLE FileHandle OPTIONAL, IN PFILE_OBJECT FileObject OPTIONAL)
Definition: section.c:4620
ULONG ulTag
Definition: mapping.h:7
PVOID pvSectionObject
Definition: mapping.h:4
PVOID pvMappedBase
Definition: mapping.h:5
SIZE_T cjViewSize
Definition: mapping.h:6
LONGLONG QuadPart
Definition: typedefs.h:114
_In_ ULONG _In_ ULONG ulTag
Definition: winddi.h:3942
_In_ ULONG cjSize
Definition: winddi.h:3634

◆ EngFreeSectionMem()

BOOL APIENTRY EngFreeSectionMem ( _In_opt_ PVOID  pvSection,
_In_opt_ PVOID  pvMappedBase 
)

Definition at line 246 of file mapping.c.

249{
251 PENGSECTION pSection = pvSection;
252 BOOL bResult = TRUE;
253
254 /* Did the caller give us a mapping base? */
255 if (pvMappedBase)
256 {
257 Status = MmUnmapViewInSessionSpace(pvMappedBase);
258 if (!NT_SUCCESS(Status))
259 {
260 DPRINT1("MmUnmapViewInSessionSpace failed: 0x%lx\n", Status);
261 bResult = FALSE;
262 }
263 }
264
265 /* Check if we should free the section as well */
266 if (pSection)
267 {
268 /* Dereference the kernel section */
270
271 /* Finally free the section memory itself */
272 EngFreeMem(pSection);
273 }
274
275 return bResult;
276}
NTSTATUS NTAPI MmUnmapViewInSessionSpace(IN PVOID MappedBase)
Definition: section.c:3089
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
unsigned int BOOL
Definition: ntddk_ex.h:94
#define ObDereferenceObject
Definition: obfuncs.h:203

Referenced by _Success_(), SURFACE_AllocSurface(), and SURFACE_vCleanup().

◆ EngLoadModuleEx()

_Check_return_ PFILEVIEW NTAPI EngLoadModuleEx ( _In_z_ LPWSTR  pwsz,
_In_ ULONG  cjSizeOfModule,
_In_ FLONG  fl 
)

Definition at line 329 of file mapping.c.

333{
334 PFILEVIEW pFileView = NULL;
336 HANDLE hRootDir;
337 UNICODE_STRING ustrFileName;
342 LARGE_INTEGER liSize;
343
344 if (fl & FVF_FONTFILE)
345 {
346 pFileView = EngAllocMem(0, sizeof(FONTFILEVIEW), 'vffG');
347 }
348 else
349 {
350 pFileView = EngAllocMem(0, sizeof(FILEVIEW), 'liFg');
351 }
352
353 /* Check for success */
354 if (!pFileView) return NULL;
355
356 /* Check if the file is relative to system32 */
357 if (fl & FVF_SYSTEMROOT)
358 {
359 hRootDir = ghSystem32Directory;
360 }
361 else
362 {
363 hRootDir = ghRootDirectory;
364 }
365
366 /* Initialize unicode string and object attributes */
367 RtlInitUnicodeString(&ustrFileName, pwsz);
369 &ustrFileName,
371 hRootDir,
372 NULL);
373
374 /* Now open the file */
375 Status = ZwCreateFile(&hFile,
379 NULL,
381 0,
382 FILE_OPEN,
384 NULL,
385 0);
386 if (!NT_SUCCESS(Status))
387 {
388 DPRINT1("Failed to open file, hFile=%p, Status=0x%x\n", hFile, Status);
389 EngFreeMem(pFileView);
390 return NULL;
391 }
392
393 Status = ZwQueryInformationFile(hFile,
398 if (NT_SUCCESS(Status))
399 {
400 pFileView->LastWriteTime = FileInformation.LastWriteTime;
401 }
402
403 /* Create a section from the file */
404 liSize.QuadPart = cjSizeOfModule;
405 Status = MmCreateSection(&pFileView->pSection,
407 NULL,
408 &liSize,
411 hFile,
412 NULL);
413
414 /* Close the file handle */
415 ZwClose(hFile);
416
417 if (!NT_SUCCESS(Status))
418 {
419 DPRINT1("Failed to create a section Status=0x%x\n", Status);
420 EngFreeMem(pFileView);
421 return NULL;
422 }
423
424
425 pFileView->pvKView = NULL;
426 pFileView->pvViewFD = NULL;
427 pFileView->cjView = 0;
428
429 return pFileView;
430}
#define FILE_NON_DIRECTORY_FILE
Definition: constants.h:492
IN PUNICODE_STRING IN POBJECT_ATTRIBUTES ObjectAttributes
Definition: conport.c:36
#define FILE_ATTRIBUTE_NORMAL
Definition: compat.h:137
@ FileBasicInformation
Definition: from_kernel.h:65
#define FILE_OPEN
Definition: from_kernel.h:54
#define OBJ_KERNEL_HANDLE
Definition: winternl.h:231
#define OBJ_CASE_INSENSITIVE
Definition: winternl.h:228
static OUT PIO_STATUS_BLOCK IoStatusBlock
Definition: pipe.c:75
static OUT PIO_STATUS_BLOCK OUT PVOID FileInformation
Definition: pipe.c:75
#define InitializeObjectAttributes(p, n, a, r, s)
Definition: reg.c:106
_In_ HANDLE hFile
Definition: mswsock.h:90
NTSYSAPI NTSTATUS NTAPI ZwClose(_In_ HANDLE Handle)
#define FILE_READ_DATA
Definition: nt_native.h:628
#define PAGE_EXECUTE_READ
Definition: nt_native.h:1307
NTSYSAPI VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING DestinationString, PCWSTR SourceString)
#define PAGE_EXECUTE_READWRITE
Definition: nt_native.h:1308
PVOID pvKView
Definition: mapping.h:13
LARGE_INTEGER LastWriteTime
Definition: mapping.h:12
PVOID pvViewFD
Definition: mapping.h:14
PVOID pSection
Definition: mapping.h:16
SIZE_T cjView
Definition: mapping.h:15
HANDLE ghRootDirectory
Definition: mapping.c:15
HANDLE ghSystem32Directory
Definition: mapping.c:14
_In_ FLONG fl
Definition: winddi.h:1279

Referenced by _Success_(), EngLoadModule(), and EngLoadModuleForWrite().

◆ EngMapSectionView()

PVOID NTAPI EngMapSectionView ( _In_ HANDLE  hSection,
_In_ SIZE_T  cjSize,
_In_ ULONG  cjOffset,
_Out_ PHANDLE  phSecure 
)

Definition at line 19 of file mapping.c.

24{
25 LARGE_INTEGER liSectionOffset;
26 PVOID pvBaseAddress;
28
29 /* Check if the size is ok (for 64 bit) */
30 if (cjSize > ULONG_MAX)
31 {
32 DPRINT1("chSize out of range: 0x%Id\n", cjSize);
33 return NULL;
34 }
35
36 /* Align the offset at allocation granularity and compensate for the size */
37 liSectionOffset.QuadPart = cjOffset & ~(MM_ALLOCATION_GRANULARITY - 1);
38 cjSize += cjOffset & (MM_ALLOCATION_GRANULARITY - 1);
39
40 /* Map the section */
41 Status = ZwMapViewOfSection(hSection,
43 &pvBaseAddress,
44 0,
45 cjSize,
46 &liSectionOffset,
47 &cjSize,
49 0,
51 if (!NT_SUCCESS(Status))
52 {
53 DPRINT1("ZwMapViewOfSection failed (0x%lx)\n", Status);
54 return NULL;
55 }
56
57 /* Secure the section memory */
58 *phSecure = EngSecureMem(pvBaseAddress, (ULONG)cjSize);
59 if (!*phSecure)
60 {
61 ZwUnmapViewOfSection(NtCurrentProcess(), pvBaseAddress);
62 return NULL;
63 }
64
65 /* Return the address where the requested data starts */
66 return (PUCHAR)pvBaseAddress + (cjOffset & (MM_ALLOCATION_GRANULARITY - 1));
67}
#define ULONG_MAX
Definition: limits.h:44
#define MM_ALLOCATION_GRANULARITY
Definition: mmtypes.h:36
#define NtCurrentProcess()
Definition: nt_native.h:1657
@ ViewShare
Definition: nt_native.h:1278
unsigned char * PUCHAR
Definition: typedefs.h:53
uint32_t ULONG
Definition: typedefs.h:59
ENGAPI HANDLE APIENTRY EngSecureMem(_In_reads_bytes_(cjLength) PVOID Address, _In_ ULONG cjLength)
_In_ const BITMAPINFO _In_ UINT _In_opt_ HANDLE hSection
Definition: wingdi.h:3239

◆ EngUnmapSectionView()

VOID NTAPI EngUnmapSectionView ( _In_ PVOID  pvBits,
_In_ ULONG  cjOffset,
_In_ HANDLE  hSecure 
)

Definition at line 71 of file mapping.c.

75{
77
78 /* Unsecure the memory */
79 EngUnsecureMem(hSecure);
80
81 /* Calculate the real start of the section view */
82 pvBits = (PUCHAR)pvBits - (cjOffset & (MM_ALLOCATION_GRANULARITY - 1));
83
84 /* Unmap the section view */
87}
NTSTATUS NTAPI MmUnmapViewOfSection(IN PEPROCESS Process, IN PVOID BaseAddress)
Definition: section.c:3117
#define ASSERT(a)
Definition: mode.c:44
ENGAPI VOID APIENTRY EngUnsecureMem(_In_ HANDLE hSecure)
#define PsGetCurrentProcess
Definition: psfuncs.h:17

Referenced by SURFACE_vCleanup().

Variable Documentation

◆ bMap

_In_ BOOL bMap

Definition at line 70 of file mapping.h.

Referenced by _Success_().

◆ cjSize

Definition at line 83 of file mapping.h.

◆ fl

Definition at line 82 of file mapping.h.

◆ hProcess

_In_ BOOL _In_ HANDLE hProcess

Definition at line 71 of file mapping.h.

Referenced by _DoDLLInjection(), _Success_(), _tWinMain(), CIconWatcher::AddIconToWatcher(), AllocateUserPhysicalPages(), AssignProcessToJobObject(), BaseCreateStack(), BaseFreeThreadStack(), CheckRemoteDebuggerPresent(), CloseProcess(), CloseProcessAndVerify_(), CreateRemoteThread(), CsrCreateProcess(), CsrGetProcessLuid(), CsrSbCreateSession(), CsrSetProcessSecurity(), DoDuplicateHandle(), DoSetPriority(), doSymEnumSymbols(), doSymSearch(), DumpEnum(), DumpType(), DumpUDT(), EmptyWorkingSet(), EnumDirTree(), EnumDirTreeW(), EnumerateLoadedModules(), EnumerateLoadedModules64(), EnumerateLoadedModulesW64(), EnumProcessModules(), ExecuteKill(), ExecutePipeline(), FindModule(), FlushInstructionCache(), FreeUserPhysicalPages(), getCommandLineFromProcess(), GetExitCodeProcess(), GetGuiResources(), CIconWatcher::GetListEntry(), GetMappedFileNameA(), GetMappedFileNameW(), GetModuleBaseNameA(), GetModuleBaseNameW(), GetModuleFileNameExA(), GetModuleFileNameExW(), GetModuleInformation(), GetPriorityClass(), GetProcessAffinityMask(), GetProcessExecutablePath(), GetProcessExecutablePathById(), GetProcessHandleCount(), GetProcessImageFileNameA(), GetProcessImageFileNameW(), GetProcessIoCounters(), GetProcessPriorityBoost(), GetProcessTimes(), GetProcessWorkingSetSize(), GetProcessWorkingSetSizeEx(), GetVersionFromProcess(), GetWsChanges(), Ghost_DestroyTarget(), ImageSymToVa(), InitDbgHelp(), InitializeProcessForWsWatch(), IntResolveDesktop(), IsCriticalProcess(), IsProcessRunning(), IsWow64Process(), LsapAddNotification(), main(), Main(), MiniDumpWriteDump(), MyDuplicateHandle(), NtOpenProcess(), NtUserGetGuiResources(), NtUserWaitForInputIdle(), PerfDataGetCommandLine(), PerfDataRefresh(), PNP_ReportLogOn(), PrintProcess(), process_find_by_handle(), process_invade_cb(), ProcessKeys(), ProcessList_Update(), ProcessPage_OnEndProcess(), ProcessPage_OnEndProcessTree(), ProcessPageShowContextMenu(), ProcessRunning(), PspCreateProcess(), QueryFullProcessImageNameA(), QueryFullProcessImageNameW(), QueryWorkingSet(), QueryWorkingSetEx(), read_mem(), read_mem64(), ReadProcessMemory(), reg_cb64to32(), RtlQueryProcessDebugInformation(), SaveProcessHandle(), SetPriorityClass(), SetProcessAffinityMask(), SetProcessPriorityBoost(), SetProcessWorkingSetSize(), SetProcessWorkingSetSizeEx(), StackWalk(), StackWalk64(), START_TEST(), sym_enum(), sym_register_cb(), SymAddSymbol(), SymAddSymbolW(), SymCleanup(), SymEnumerateModules(), SymEnumerateModules64(), SymEnumerateModulesW64(), SymEnumerateSymbols(), SymEnumerateSymbols64(), SymEnumLines(), SymEnumSourceFiles(), SymEnumSourceFilesW(), SymEnumSourceLines(), SymEnumSourceLinesW(), SymEnumSymbols(), SymEnumSymbolsW(), SymEnumTypes(), SymEnumTypesW(), SymFindFileInPath(), SymFindFileInPathW(), SymFromAddr(), SymFromAddrW(), SymFromIndex(), SymFromIndexW(), SymFromName(), SymFunctionTableAccess(), SymFunctionTableAccess64(), SymGetLineFromAddr(), SymGetLineFromAddr64(), SymGetLineFromAddrW64(), SymGetLineFromName(), SymGetLineFromName64(), SymGetLineFromNameW64(), SymGetLineNext(), SymGetLineNext64(), SymGetLinePrev(), SymGetLinePrev64(), SymGetModuleBase(), SymGetModuleBase64(), SymGetModuleInfo(), SymGetModuleInfo64(), SymGetModuleInfoW(), SymGetModuleInfoW64(), SymGetSearchPath(), SymGetSearchPathW(), SymGetSourceFileToken(), SymGetSourceFileTokenW(), SymGetSymFromAddr(), SymGetSymFromAddr64(), SymGetSymFromName(), SymGetSymFromName64(), SymGetSymNext(), SymGetSymNext64(), SymGetSymPrev(), SymGetSymPrev64(), SymGetTypeFromName(), SymGetTypeInfo(), SymInitialize(), SymInitializeW(), SymLoadModule(), SymLoadModule64(), SymLoadModuleEx(), SymLoadModuleExW(), SymRefreshModuleList(), SymRegisterCallback(), SymRegisterCallback64(), SymRegisterCallbackW64(), SymSearch(), SymSearchW(), SymSetContext(), SymSetHomeDirectory(), SymSetHomeDirectoryW(), SymSetScopeFromAddr(), SymSetSearchPath(), SymSetSearchPathW(), SymUnloadModule(), SymUnloadModule64(), TerminateProcess(), test_CreateRemoteThread(), test_NtMapViewOfSection(), test_pack_CREATE_PROCESS_DEBUG_INFO(), test_pack_PROCESS_INFORMATION(), test_QueryInformationJobObject(), test_shell_window(), test_VirtualAllocEx(), TestTerminateProcess(), Toolhelp32ReadProcessMemory(), ModuleData::Update(), UserpCaptureStringParameters(), UserpFormatMessages(), UserpGetClientFileName(), VirtualAllocEx(), VirtualFreeEx(), VirtualProtectEx(), VirtualQueryEx(), WaitForInputIdle(), WaitForSettingsDialog(), WlxAssignShellProtection(), WOWShellExecute(), WriteProcessMemory(), WSPDuplicateSocket(), and wWinMain().

◆ ulTag

Definition at line 84 of file mapping.h.