//creates a list of accessible memory regions in VRAM (readable&&writable)
private void CreateEntryPoints()
{
long helpMinimumAddress = (long)minimumAddress;
RegionStructure region;
MEMORY_BASIC_INFORMATION memoryInfo = new MEMORY_BASIC_INFORMATION();
List <RegionStructure> originalRegionList = new List <RegionStructure>();
while (helpMinimumAddress < maximum32BitAddress)
{
minimumAddress = new IntPtr(helpMinimumAddress);
//receives basic memory information for a handle specified by OpenProcess (more info : MEMORY_BASIC_INFORMATION struct)
VirtualQueryEx(targetHandle, minimumAddress, out memoryInfo, (uint)Marshal.SizeOf(memoryInfo));
if (memoryInfo.RegionSize < 0) //TODO: prüfen regionsize int oder uint | prüfen cast auf long oder int
{
break;
}
//checks regions for necessary ProtectionStatus to ReadAndWrite and for the needed MemoryType
if (memoryInfo.Protect == AllocationProtectEnum.PAGE_READWRITE ||
memoryInfo.Protect == AllocationProtectEnum.PAGE_WRITECOMBINEPLUSREADWRITE &&
(memoryInfo.Type == TypeEnum.MEM_IMAGE || memoryInfo.Type == TypeEnum.MEM_PRIVATE))
{
//adds regions to a List
region = new RegionStructure(memoryInfo.BaseAddress, (int)memoryInfo.RegionSize);
originalRegionList.Add(region);
}
helpMinimumAddress = (uint)memoryInfo.BaseAddress + memoryInfo.RegionSize;
}
SplitList(originalRegionList);
}
public PointerStructure(uint address, RegionStructure regionStructure)
{
this.regionStructure = regionStructure;
offsets = new List <uint>();
addresses = new List <uint> {
address
};
moduleName = "stack";
}
private void WriteToList(byte[] memoryBuffer, RegionStructure regionStructure)
{
bool done = false;
while (!done)
{
Monitor.TryEnter(MemoryDump, ref done); //waits until no other thread is accessing the list
if (done)
{
MemoryDump.Add(new MemoryStructure(regionStructure.RegionBeginning, regionStructure.RegionSize, memoryBuffer));
Monitor.Exit(MemoryDump);
}
}
}
