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Fix physical write process memory

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Cleanup allocated memory before use and tell the compiler not to optimize APIC access
This commit is contained in:
cheatengine@gmail.com 2012-01-25 21:55:52 +00:00
parent 1b4dfd6a3d
commit 296c152e43
4 changed files with 22 additions and 8 deletions
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6
DBKKernel/IOPLDispatcher.c
View file

@ -159,7 +159,7 @@ NTSTATUS DispatchIoctl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
else
IoControlCode=Irp->Flags;
DbgPrint("DispatchIoctl. IoControlCode=%x\n", IoControlCode);
//DbgPrint("DispatchIoctl. IoControlCode=%x\n", IoControlCode);
@ -520,7 +520,7 @@ NTSTATUS DispatchIoctl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
if (ntStatus==STATUS_SUCCESS)
{
offset=(UINT_PTR)(pinp->startaddress)-(UINT_PTR)viewBase.QuadPart;
RtlCopyMemory(&memoryview[offset],&pinp2[8],toread);
RtlCopyMemory(&memoryview[offset],&pinp2[16],toread);
ZwUnmapViewOfSection(
NtCurrentProcess(), //processhandle
@ -1373,7 +1373,7 @@ NTSTATUS DispatchIoctl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
DbgPrint("IOCTL_CE_ULTIMAP:\n");
DbgPrint("ultimap(%llx, %llx, %d):\n", inp->targetCR3, inp->dbgctl, inp->dsareasize);
DbgPrint("ultimap(%I64x, %I64x, %d):\n", (UINT64)inp->targetCR3, (UINT64)inp->dbgctl, inp->dsareasize);
if (inp->savetofile)
DbgPrint("filename=%S\n", &inp->filename[0]);

2
DBKKernel/interruptHook.c
View file

@ -189,7 +189,7 @@ int inthook_HookInterrupt(unsigned char intnr, int newCS, ULONG_PTR newEIP, PJUM
InterruptHook[intnr].dbvmInterruptEmulation=0;
DbgPrint("int %d will now go to %x:%x\n",intnr, newCS, newEIP);
DbgPrint("int %d will now go to %x:%p\n",intnr, newCS, newEIP);
}

20
DBKKernel/ultimap.c
View file

@ -15,9 +15,9 @@ JUMPBACK perfmonJumpBackLocation;
#ifdef AMD64
PAPIC APIC_BASE=(PAPIC)0xfffffffffffe0000;
volatile PAPIC APIC_BASE=(PAPIC)0xfffffffffffe0000;
#else
PAPIC APIC_BASE=(PAPIC)0xfffe0000;
volatile PAPIC APIC_BASE=(PAPIC)0xfffe0000;
#endif
BOOL SaveToFile; //If set it will save the results to a file instead of sending a message to the usermode app that is watching the data
@ -156,6 +156,9 @@ int perfmon_interrupt_centry(void)
int causedbyme=(DS_AREA[cpunr()]->BTS_IndexBaseAddress>=DS_AREA[cpunr()]->BTS_InterruptThresholdAddress);
UINT_PTR blocksize;
DbgPrint("perfmon_interrupt_centry\n", cpunr());
if (causedbyme)
{
//undo the system flags that got set by this interrupt
@ -401,12 +404,13 @@ Call this for each processor
DS_AREA_SIZE=params->DS_AREA_SIZE;
DbgPrint("ultimap(%llx, %llx, %d)", params->cr3, params->dbgctl_msr, params->DS_AREA_SIZE);
DbgPrint("ultimap(%I64x, %I64x, %d)", (UINT64)params->cr3, (UINT64)params->dbgctl_msr, params->DS_AREA_SIZE);
DS_AREA[cpunr()]=NULL;
if (params->DS_AREA_SIZE)
{
DS_AREA[cpunr()]=ExAllocatePool(NonPagedPool, params->DS_AREA_SIZE);
RtlZeroMemory(DS_AREA[cpunr()], params->DS_AREA_SIZE);
DbgPrint("DS_AREA[%d]=%p", cpunr(), DS_AREA[cpunr()]);
@ -432,8 +436,14 @@ Call this for each processor
int perfmonIVT=(APIC_BASE->LVT_Performance_Monitor.a) & 0xff;
DbgPrint("APIC_BASE->LVT_Performance_Monitor.a=%x\n", APIC_BASE->LVT_Performance_Monitor.a);
if (perfmonIVT==0) //if not setup at all then set it up now
perfmonIVT=0xfe;
APIC_BASE->LVT_Performance_Monitor.a=perfmonIVT; //clear mask flag if it was set
DbgPrint("APIC_BASE->LVT_Performance_Monitor.a=%x\n", APIC_BASE->LVT_Performance_Monitor.a);
if (inthook_HookInterrupt((unsigned char)perfmonIVT, getCS(), (ULONG_PTR)perfmon_interrupt, &perfmonJumpBackLocation))
@ -494,6 +504,10 @@ NTSTATUS ultimap(UINT64 cr3, UINT64 dbgctl_msr, int DS_AREA_SIZE, BOOL savetofil
DataBlock=ExAllocatePool(NonPagedPool, sizeof(_DataBlock) * MaxDataBlocks);
DataReadyPointerList=ExAllocatePool(NonPagedPool, sizeof(PVOID) * MaxDataBlocks);
RtlZeroMemory(DataBlock, sizeof(_DataBlock) * MaxDataBlocks);
RtlZeroMemory(DataReadyPointerList, sizeof(PVOID) * MaxDataBlocks);
if ((DataBlock) && (DataReadyPointerList))
{

2
DBKKernel/ultimap.h
View file

@ -88,7 +88,7 @@ typedef struct {
DWORD d;
} UINT128;
typedef struct {
typedef volatile struct {
UINT128 Reserved1;
UINT128 Reserved2;
UINT128 LocalAPIC_ID;