reactos/modules/rostests/kmtests/include/kmt_test.h
Thomas Faber a9ba7a3f9e
[KMTESTS] Change license to LGPL and update to SPDX headers.
Permission for this change was given by all authors
(who are now mentioned in the copyright lines).
2018-02-18 11:22:09 +01:00

523 lines
21 KiB
C

/*
* PROJECT: ReactOS kernel-mode tests
* LICENSE: LGPL-2.1+ (https://spdx.org/licenses/LGPL-2.1+)
* PURPOSE: Kernel-Mode Test Suite test framework declarations
* COPYRIGHT: Copyright 2011-2018 Thomas Faber <thomas.faber@reactos.org>
* Copyright 2013 Nikolay Borisov <nib9@aber.ac.uk>
* Copyright 2014-2016 Pierre Schweitzer <pierre@reactos.org>
* Copyright 2017 Ged Murphy <gedmurphy@reactos.org>
*/
/* Inspired by Wine C unit tests, Copyright (C) 2002 Alexandre Julliard
* Inspired by ReactOS kernel-mode regression tests,
* Copyright (C) Aleksey Bragin, Filip Navara
*/
#ifndef _KMTEST_TEST_H_
#define _KMTEST_TEST_H_
#include <kmt_platform.h>
typedef VOID KMT_TESTFUNC(VOID);
typedef KMT_TESTFUNC *PKMT_TESTFUNC;
typedef struct
{
const char *TestName;
KMT_TESTFUNC *TestFunction;
} KMT_TEST, *PKMT_TEST;
typedef const KMT_TEST CKMT_TEST, *PCKMT_TEST;
extern const KMT_TEST TestList[];
typedef struct
{
volatile LONG Successes;
volatile LONG Failures;
volatile LONG Skipped;
volatile LONG LogBufferLength;
LONG LogBufferMaxLength;
CHAR LogBuffer[ANYSIZE_ARRAY];
} KMT_RESULTBUFFER, *PKMT_RESULTBUFFER;
#ifndef KMT_STANDALONE_DRIVER
/* usermode call-back mechanism */
/* list of supported operations */
typedef enum _KMT_CALLBACK_INFORMATION_CLASS
{
QueryVirtualMemory
} KMT_CALLBACK_INFORMATION_CLASS, *PKMT_CALLBACK_INFORMATION_CLASS;
/* TODO: "response" is a little generic */
typedef union _KMT_RESPONSE
{
MEMORY_BASIC_INFORMATION MemInfo;
} KMT_RESPONSE, *PKMT_RESPONSE;
/* this struct is sent from driver to usermode */
typedef struct _KMT_CALLBACK_REQUEST_PACKET
{
ULONG RequestId;
KMT_CALLBACK_INFORMATION_CLASS OperationClass;
PVOID Parameters;
} KMT_CALLBACK_REQUEST_PACKET, *PKMT_CALLBACK_REQUEST_PACKET;
PKMT_RESPONSE KmtUserModeCallback(KMT_CALLBACK_INFORMATION_CLASS Operation, PVOID Parameters);
VOID KmtFreeCallbackResponse(PKMT_RESPONSE Response);
//macro to simplify using the mechanism
#define Test_NtQueryVirtualMemory(BaseAddress, Size, AllocationType, ProtectionType) \
do { \
PKMT_RESPONSE NtQueryTest = KmtUserModeCallback(QueryVirtualMemory, BaseAddress); \
if (NtQueryTest != NULL) \
{ \
ok_eq_hex(NtQueryTest->MemInfo.Protect, ProtectionType); \
ok_eq_hex(NtQueryTest->MemInfo.State, AllocationType); \
ok_eq_size(NtQueryTest->MemInfo.RegionSize, Size); \
KmtFreeCallbackResponse(NtQueryTest); \
} \
} while (0) \
#endif
#ifdef KMT_STANDALONE_DRIVER
#define KMT_KERNEL_MODE
typedef NTSTATUS (KMT_IRP_HANDLER)(
IN PDEVICE_OBJECT DeviceObject,
IN PIRP Irp,
IN PIO_STACK_LOCATION IoStackLocation);
typedef KMT_IRP_HANDLER *PKMT_IRP_HANDLER;
NTSTATUS KmtRegisterIrpHandler(IN UCHAR MajorFunction, IN PDEVICE_OBJECT DeviceObject OPTIONAL, IN PKMT_IRP_HANDLER IrpHandler);
NTSTATUS KmtUnregisterIrpHandler(IN UCHAR MajorFunction, IN PDEVICE_OBJECT DeviceObject OPTIONAL, IN PKMT_IRP_HANDLER IrpHandler);
typedef NTSTATUS (KMT_MESSAGE_HANDLER)(
IN PDEVICE_OBJECT DeviceObject,
IN ULONG ControlCode,
IN PVOID Buffer OPTIONAL,
IN SIZE_T InLength,
IN OUT PSIZE_T OutLength);
typedef KMT_MESSAGE_HANDLER *PKMT_MESSAGE_HANDLER;
NTSTATUS KmtRegisterMessageHandler(IN ULONG ControlCode OPTIONAL, IN PDEVICE_OBJECT DeviceObject OPTIONAL, IN PKMT_MESSAGE_HANDLER MessageHandler);
NTSTATUS KmtUnregisterMessageHandler(IN ULONG ControlCode OPTIONAL, IN PDEVICE_OBJECT DeviceObject OPTIONAL, IN PKMT_MESSAGE_HANDLER MessageHandler);
typedef enum
{
TESTENTRY_NO_CREATE_DEVICE = 1,
TESTENTRY_NO_REGISTER_DISPATCH = 2,
TESTENTRY_NO_REGISTER_UNLOAD = 4,
TESTENTRY_NO_EXCLUSIVE_DEVICE = 8,
TESTENTRY_NO_READONLY_DEVICE = 16,
TESTENTRY_BUFFERED_IO_DEVICE = 32,
} KMT_TESTENTRY_FLAGS;
NTSTATUS TestEntry(IN PDRIVER_OBJECT DriverObject, IN PCUNICODE_STRING RegistryPath, OUT PCWSTR *DeviceName, IN OUT INT *Flags);
VOID TestUnload(IN PDRIVER_OBJECT DriverObject);
#endif /* defined KMT_STANDALONE_DRIVER */
#ifdef KMT_FILTER_DRIVER
#ifndef KMT_KERNEL_MODE
#define KMT_KERNEL_MODE
#endif
NTSTATUS KmtFilterRegisterCallbacks(_In_ CONST FLT_OPERATION_REGISTRATION *OperationRegistration);
typedef enum
{
TESTENTRY_NO_REGISTER_FILTER = 0x01,
TESTENTRY_NO_CREATE_COMMS_PORT = 0x02,
TESTENTRY_NO_START_FILTERING = 0x04,
TESTENTRY_NO_INSTANCE_SETUP = 0x08,
TESTENTRY_NO_QUERY_TEARDOWN = 0x10,
TESTENTRY_NO_ALL = 0xFF
} KMT_MINIFILTER_FLAGS;
VOID TestFilterUnload(_In_ ULONG Flags);
NTSTATUS TestInstanceSetup(_In_ PCFLT_RELATED_OBJECTS FltObjects, _In_ FLT_INSTANCE_SETUP_FLAGS Flags, _In_ DEVICE_TYPE VolumeDeviceType, _In_ FLT_FILESYSTEM_TYPE VolumeFilesystemType, _In_ PUNICODE_STRING VolumeName, _In_ ULONG RealSectorSize, _In_ ULONG SectorSize);
VOID TestQueryTeardown(_In_ PCFLT_RELATED_OBJECTS FltObjects, _In_ FLT_INSTANCE_QUERY_TEARDOWN_FLAGS Flags);
NTSTATUS KmtFilterRegisterComms(_In_ PFLT_CONNECT_NOTIFY ConnectNotifyCallback, _In_ PFLT_DISCONNECT_NOTIFY DisconnectNotifyCallback, _In_opt_ PFLT_MESSAGE_NOTIFY MessageNotifyCallback, _In_ LONG MaxClientConnections);
#endif/* defined KMT_FILTER_DRIVER */
#ifdef KMT_KERNEL_MODE
/* Device Extension layout */
typedef struct
{
PKMT_RESULTBUFFER ResultBuffer;
PMDL Mdl;
} KMT_DEVICE_EXTENSION, *PKMT_DEVICE_EXTENSION;
extern BOOLEAN KmtIsCheckedBuild;
extern BOOLEAN KmtIsMultiProcessorBuild;
extern PCSTR KmtMajorFunctionNames[];
extern PDRIVER_OBJECT KmtDriverObject;
VOID KmtSetIrql(IN KIRQL NewIrql);
BOOLEAN KmtAreInterruptsEnabled(VOID);
ULONG KmtGetPoolTag(PVOID Memory);
USHORT KmtGetPoolType(PVOID Memory);
PVOID KmtGetSystemRoutineAddress(IN PCWSTR RoutineName);
PKTHREAD KmtStartThread(IN PKSTART_ROUTINE StartRoutine, IN PVOID StartContext OPTIONAL);
VOID KmtFinishThread(IN PKTHREAD Thread OPTIONAL, IN PKEVENT Event OPTIONAL);
#elif defined KMT_USER_MODE
DWORD KmtRunKernelTest(IN PCSTR TestName);
VOID KmtLoadDriver(IN PCWSTR ServiceName, IN BOOLEAN RestartIfRunning);
VOID KmtUnloadDriver(VOID);
VOID KmtOpenDriver(VOID);
VOID KmtCloseDriver(VOID);
DWORD KmtSendToDriver(IN DWORD ControlCode);
DWORD KmtSendStringToDriver(IN DWORD ControlCode, IN PCSTR String);
DWORD KmtSendWStringToDriver(IN DWORD ControlCode, IN PCWSTR String);
DWORD KmtSendUlongToDriver(IN DWORD ControlCode, IN DWORD Value);
DWORD KmtSendBufferToDriver(IN DWORD ControlCode, IN OUT PVOID Buffer OPTIONAL, IN DWORD InLength, IN OUT PDWORD OutLength);
DWORD KmtFltCreateService(_In_z_ PCWSTR ServiceName, _In_z_ PCWSTR DisplayName, _Out_ SC_HANDLE *ServiceHandle);
DWORD KmtFltDeleteService(_In_opt_z_ PCWSTR ServiceName, _Inout_ SC_HANDLE *ServiceHandle);
DWORD KmtFltAddAltitude(_In_z_ LPWSTR Altitude);
DWORD KmtFltLoadDriver(_In_ BOOLEAN EnableDriverLoadPrivlege, _In_ BOOLEAN RestartIfRunning, _In_ BOOLEAN ConnectComms, _Out_ HANDLE *hPort);
DWORD KmtFltUnloadDriver(_In_ HANDLE *hPort, _In_ BOOLEAN DisonnectComms);
DWORD KmtFltConnectComms(_Out_ HANDLE *hPort);
DWORD KmtFltDisconnectComms(_In_ HANDLE hPort);
DWORD KmtFltRunKernelTest(_In_ HANDLE hPort, _In_z_ PCSTR TestName);
DWORD KmtFltSendToDriver(_In_ HANDLE hPort, _In_ DWORD Message);
DWORD KmtFltSendStringToDriver(_In_ HANDLE hPort, _In_ DWORD Message, _In_ PCSTR String);
DWORD KmtFltSendWStringToDriver(_In_ HANDLE hPort, _In_ DWORD Message, _In_ PCWSTR String);
DWORD KmtFltSendUlongToDriver(_In_ HANDLE hPort, _In_ DWORD Message, _In_ DWORD Value);
DWORD KmtFltSendBufferToDriver(_In_ HANDLE hPort, _In_ DWORD Message, _In_reads_bytes_(BufferSize) LPVOID Buffer, _In_ DWORD BufferSize, _Out_writes_bytes_to_opt_(dwOutBufferSize, *lpBytesReturned) LPVOID lpOutBuffer, _In_ DWORD dwOutBufferSize, _Out_opt_ LPDWORD lpBytesReturned);
#else /* if !defined KMT_KERNEL_MODE && !defined KMT_USER_MODE */
#error either KMT_KERNEL_MODE or KMT_USER_MODE must be defined
#endif /* !defined KMT_KERNEL_MODE && !defined KMT_USER_MODE */
extern PKMT_RESULTBUFFER ResultBuffer;
#ifdef __GNUC__
/* TODO: GCC doesn't understand %wZ :( */
#define KMT_FORMAT(type, fmt, first) /*__attribute__((__format__(type, fmt, first)))*/
#elif !defined __GNUC__
#define KMT_FORMAT(type, fmt, first)
#endif /* !defined __GNUC__ */
#define START_TEST(name) VOID Test_##name(VOID)
#ifndef KMT_STRINGIZE
#define KMT_STRINGIZE(x) #x
#endif /* !defined KMT_STRINGIZE */
#define ok(test, ...) ok_(test, __FILE__, __LINE__, __VA_ARGS__)
#define trace(...) trace_( __FILE__, __LINE__, __VA_ARGS__)
#define skip(test, ...) skip_(test, __FILE__, __LINE__, __VA_ARGS__)
#define ok_(test, file, line, ...) KmtOk(test, file ":" KMT_STRINGIZE(line), __VA_ARGS__)
#define trace_(file, line, ...) KmtTrace( file ":" KMT_STRINGIZE(line), __VA_ARGS__)
#define skip_(test, file, line, ...) KmtSkip(test, file ":" KMT_STRINGIZE(line), __VA_ARGS__)
BOOLEAN KmtVOk(INT Condition, PCSTR FileAndLine, PCSTR Format, va_list Arguments) KMT_FORMAT(ms_printf, 3, 0);
BOOLEAN KmtOk(INT Condition, PCSTR FileAndLine, PCSTR Format, ...) KMT_FORMAT(ms_printf, 3, 4);
VOID KmtVTrace(PCSTR FileAndLine, PCSTR Format, va_list Arguments) KMT_FORMAT(ms_printf, 2, 0);
VOID KmtTrace(PCSTR FileAndLine, PCSTR Format, ...) KMT_FORMAT(ms_printf, 2, 3);
BOOLEAN KmtVSkip(INT Condition, PCSTR FileAndLine, PCSTR Format, va_list Arguments) KMT_FORMAT(ms_printf, 3, 0);
BOOLEAN KmtSkip(INT Condition, PCSTR FileAndLine, PCSTR Format, ...) KMT_FORMAT(ms_printf, 3, 4);
PVOID KmtAllocateGuarded(SIZE_T SizeRequested);
VOID KmtFreeGuarded(PVOID Pointer);
#ifdef KMT_KERNEL_MODE
#define ok_irql(irql) ok(KeGetCurrentIrql() == irql, "IRQL is %d, expected %d\n", KeGetCurrentIrql(), irql)
#endif /* defined KMT_KERNEL_MODE */
#define ok_eq_print(value, expected, spec) ok((value) == (expected), #value " = " spec ", expected " spec "\n", value, expected)
#define ok_eq_pointer(value, expected) ok_eq_print(value, expected, "%p")
#define ok_eq_int(value, expected) ok_eq_print(value, expected, "%d")
#define ok_eq_uint(value, expected) ok_eq_print(value, expected, "%u")
#define ok_eq_long(value, expected) ok_eq_print(value, expected, "%ld")
#define ok_eq_ulong(value, expected) ok_eq_print(value, expected, "%lu")
#define ok_eq_longlong(value, expected) ok_eq_print(value, expected, "%I64d")
#define ok_eq_ulonglong(value, expected) ok_eq_print(value, expected, "%I64u")
#define ok_eq_char(value, expected) ok_eq_print(value, expected, "%c")
#define ok_eq_wchar(value, expected) ok_eq_print(value, expected, "%C")
#ifndef _WIN64
#define ok_eq_size(value, expected) ok_eq_print(value, (SIZE_T)(expected), "%lu")
#define ok_eq_longptr(value, expected) ok_eq_print(value, (LONG_PTR)(expected), "%ld")
#define ok_eq_ulongptr(value, expected) ok_eq_print(value, (ULONG_PTR)(expected), "%lu")
#elif defined _WIN64
#define ok_eq_size(value, expected) ok_eq_print(value, (SIZE_T)(expected), "%I64u")
#define ok_eq_longptr(value, expected) ok_eq_print(value, (LONG_PTR)(expected), "%I64d")
#define ok_eq_ulongptr(value, expected) ok_eq_print(value, (ULONG_PTR)(expected), "%I64u")
#endif /* defined _WIN64 */
#define ok_eq_hex(value, expected) ok_eq_print(value, expected, "0x%08lx")
#define ok_bool_true(value, desc) ok((value) == TRUE, desc " FALSE, expected TRUE\n")
#define ok_bool_false(value, desc) ok((value) == FALSE, desc " TRUE, expected FALSE\n")
#define ok_eq_bool(value, expected) ok((value) == (expected), #value " = %s, expected %s\n", \
(value) ? "TRUE" : "FALSE", \
(expected) ? "TRUE" : "FALSE")
#define ok_eq_str(value, expected) ok(!strcmp(value, expected), #value " = \"%s\", expected \"%s\"\n", value, expected)
#define ok_eq_wstr(value, expected) ok(!wcscmp(value, expected), #value " = \"%ls\", expected \"%ls\"\n", value, expected)
#define ok_eq_tag(value, expected) ok_eq_print(value, expected, "0x%08lx")
#define KMT_MAKE_CODE(ControlCode) CTL_CODE(FILE_DEVICE_UNKNOWN, \
0xC00 + (ControlCode), \
METHOD_BUFFERED, \
FILE_ANY_ACCESS)
#define MICROSECOND 10
#define MILLISECOND (1000 * MICROSECOND)
#define SECOND (1000 * MILLISECOND)
/* See apitests/include/apitest.h */
#define KmtInvalidPointer ((PVOID)0x5555555555555555ULL)
#define KmtStartSeh() \
{ \
NTSTATUS ExceptionStatus = STATUS_SUCCESS; \
_SEH2_TRY \
{
#define KmtEndSeh(ExpectedStatus) \
} \
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) \
{ \
ExceptionStatus = _SEH2_GetExceptionCode(); \
} \
_SEH2_END; \
ok_eq_hex(ExceptionStatus, (ExpectedStatus)); \
}
#define KmtGetSystemOrEmbeddedRoutineAddress(RoutineName) \
p##RoutineName = KmtGetSystemRoutineAddress(L ## #RoutineName); \
if (!p##RoutineName) \
{ \
p##RoutineName = RoutineName; \
trace("Using embedded routine for " #RoutineName "\n"); \
} \
else \
trace("Using system routine for " #RoutineName "\n");
#if defined KMT_DEFINE_TEST_FUNCTIONS
#if defined KMT_KERNEL_MODE
#include "kmt_test_kernel.h"
#elif defined KMT_USER_MODE
#include "kmt_test_user.h"
#endif /* defined KMT_USER_MODE */
PKMT_RESULTBUFFER ResultBuffer = NULL;
static VOID KmtAddToLogBuffer(PKMT_RESULTBUFFER Buffer, PCSTR String, SIZE_T Length)
{
LONG OldLength;
LONG NewLength;
if (!Buffer)
return;
do
{
OldLength = Buffer->LogBufferLength;
NewLength = OldLength + (ULONG)Length;
if (NewLength > Buffer->LogBufferMaxLength)
return;
} while (InterlockedCompareExchange(&Buffer->LogBufferLength, NewLength, OldLength) != OldLength);
memcpy(&Buffer->LogBuffer[OldLength], String, Length);
}
KMT_FORMAT(ms_printf, 5, 0)
static SIZE_T KmtXVSNPrintF(PSTR Buffer, SIZE_T BufferMaxLength, PCSTR FileAndLine, PCSTR Prepend, PCSTR Format, va_list Arguments)
{
SIZE_T BufferLength = 0;
SIZE_T Length;
if (FileAndLine)
{
PCSTR Slash;
Slash = strrchr(FileAndLine, '\\');
if (Slash)
FileAndLine = Slash + 1;
Slash = strrchr(FileAndLine, '/');
if (Slash)
FileAndLine = Slash + 1;
Length = min(BufferMaxLength, strlen(FileAndLine));
memcpy(Buffer, FileAndLine, Length);
Buffer += Length;
BufferLength += Length;
BufferMaxLength -= Length;
}
if (Prepend)
{
Length = min(BufferMaxLength, strlen(Prepend));
memcpy(Buffer, Prepend, Length);
Buffer += Length;
BufferLength += Length;
BufferMaxLength -= Length;
}
if (Format)
{
Length = KmtVSNPrintF(Buffer, BufferMaxLength, Format, Arguments);
/* vsnprintf can return more than maxLength, we don't want to do that */
BufferLength += min(Length, BufferMaxLength);
}
return BufferLength;
}
KMT_FORMAT(ms_printf, 5, 6)
static SIZE_T KmtXSNPrintF(PSTR Buffer, SIZE_T BufferMaxLength, PCSTR FileAndLine, PCSTR Prepend, PCSTR Format, ...)
{
SIZE_T BufferLength;
va_list Arguments;
va_start(Arguments, Format);
BufferLength = KmtXVSNPrintF(Buffer, BufferMaxLength, FileAndLine, Prepend, Format, Arguments);
va_end(Arguments);
return BufferLength;
}
VOID KmtFinishTest(PCSTR TestName)
{
CHAR MessageBuffer[512];
SIZE_T MessageLength;
if (!ResultBuffer)
return;
MessageLength = KmtXSNPrintF(MessageBuffer, sizeof MessageBuffer, NULL, NULL,
"%s: %ld tests executed (0 marked as todo, %ld failures), %ld skipped.\n",
TestName,
ResultBuffer->Successes + ResultBuffer->Failures,
ResultBuffer->Failures,
ResultBuffer->Skipped);
KmtAddToLogBuffer(ResultBuffer, MessageBuffer, MessageLength);
}
BOOLEAN KmtVOk(INT Condition, PCSTR FileAndLine, PCSTR Format, va_list Arguments)
{
CHAR MessageBuffer[512];
SIZE_T MessageLength;
if (!ResultBuffer)
return Condition != 0;
if (Condition)
{
InterlockedIncrement(&ResultBuffer->Successes);
if (0/*KmtReportSuccess*/)
{
MessageLength = KmtXSNPrintF(MessageBuffer, sizeof MessageBuffer, FileAndLine, ": Test succeeded\n", NULL);
KmtAddToLogBuffer(ResultBuffer, MessageBuffer, MessageLength);
}
}
else
{
InterlockedIncrement(&ResultBuffer->Failures);
MessageLength = KmtXVSNPrintF(MessageBuffer, sizeof MessageBuffer, FileAndLine, ": Test failed: ", Format, Arguments);
KmtAddToLogBuffer(ResultBuffer, MessageBuffer, MessageLength);
}
return Condition != 0;
}
BOOLEAN KmtOk(INT Condition, PCSTR FileAndLine, PCSTR Format, ...)
{
BOOLEAN Ret;
va_list Arguments;
va_start(Arguments, Format);
Ret = KmtVOk(Condition, FileAndLine, Format, Arguments);
va_end(Arguments);
return Ret;
}
VOID KmtVTrace(PCSTR FileAndLine, PCSTR Format, va_list Arguments)
{
CHAR MessageBuffer[512];
SIZE_T MessageLength;
MessageLength = KmtXVSNPrintF(MessageBuffer, sizeof MessageBuffer, FileAndLine, ": ", Format, Arguments);
KmtAddToLogBuffer(ResultBuffer, MessageBuffer, MessageLength);
}
VOID KmtTrace(PCSTR FileAndLine, PCSTR Format, ...)
{
va_list Arguments;
va_start(Arguments, Format);
KmtVTrace(FileAndLine, Format, Arguments);
va_end(Arguments);
}
BOOLEAN KmtVSkip(INT Condition, PCSTR FileAndLine, PCSTR Format, va_list Arguments)
{
CHAR MessageBuffer[512];
SIZE_T MessageLength;
if (!ResultBuffer)
return !Condition;
if (!Condition)
{
InterlockedIncrement(&ResultBuffer->Skipped);
MessageLength = KmtXVSNPrintF(MessageBuffer, sizeof MessageBuffer, FileAndLine, ": Tests skipped: ", Format, Arguments);
KmtAddToLogBuffer(ResultBuffer, MessageBuffer, MessageLength);
}
return !Condition;
}
BOOLEAN KmtSkip(INT Condition, PCSTR FileAndLine, PCSTR Format, ...)
{
BOOLEAN Ret;
va_list Arguments;
va_start(Arguments, Format);
Ret = KmtVSkip(Condition, FileAndLine, Format, Arguments);
va_end(Arguments);
return Ret;
}
PVOID KmtAllocateGuarded(SIZE_T SizeRequested)
{
NTSTATUS Status;
SIZE_T Size = PAGE_ROUND_UP(SizeRequested + PAGE_SIZE);
PVOID VirtualMemory = NULL;
PCHAR StartOfBuffer;
Status = ZwAllocateVirtualMemory(ZwCurrentProcess(), &VirtualMemory, 0, &Size, MEM_RESERVE, PAGE_NOACCESS);
if (!NT_SUCCESS(Status))
return NULL;
Size -= PAGE_SIZE;
Status = ZwAllocateVirtualMemory(ZwCurrentProcess(), &VirtualMemory, 0, &Size, MEM_COMMIT, PAGE_READWRITE);
if (!NT_SUCCESS(Status))
{
Size = 0;
Status = ZwFreeVirtualMemory(ZwCurrentProcess(), &VirtualMemory, &Size, MEM_RELEASE);
ok_eq_hex(Status, STATUS_SUCCESS);
return NULL;
}
StartOfBuffer = VirtualMemory;
StartOfBuffer += Size - SizeRequested;
return StartOfBuffer;
}
VOID KmtFreeGuarded(PVOID Pointer)
{
NTSTATUS Status;
PVOID VirtualMemory = (PVOID)PAGE_ROUND_DOWN((SIZE_T)Pointer);
SIZE_T Size = 0;
Status = ZwFreeVirtualMemory(ZwCurrentProcess(), &VirtualMemory, &Size, MEM_RELEASE);
ok_eq_hex(Status, STATUS_SUCCESS);
}
#endif /* defined KMT_DEFINE_TEST_FUNCTIONS */
#endif /* !defined _KMTEST_TEST_H_ */