public unsafe int ReadVirtual(IntPtr self, ulong address, IntPtr buffer, int bytesRequested, out int bytesRead)
{
if (_dataReader.ReadMemory(address, buffer, bytesRequested, out int read))
{
bytesRead = read;
return(S_OK);
}
bytesRead = 0;
ModuleInfo info = GetModule(address);
if (info != null)
{
if (Path.GetExtension(info.FileName).ToLower() == ".so")
{
// TODO
System.Diagnostics.Debug.WriteLine($"TODO: Implement reading from module '{info.FileName}'");
return(E_NOTIMPL);
}
string filePath = _dataTarget.SymbolLocator.FindBinary(info.FileName, info.TimeStamp, info.FileSize, true);
if (filePath == null)
{
bytesRead = 0;
return(E_FAIL);
}
// We do not put a using statement here to prevent needing to load/unload the binary over and over.
PEFile file = _dataTarget.FileLoader.LoadPEFile(filePath);
if (file?.Header != null)
{
PEBuffer peBuffer = file.AllocBuff();
int rva = checked ((int)(address - info.ImageBase));
if (file.Header.TryGetFileOffsetFromRva(rva, out rva))
{
byte *dst = (byte *)buffer.ToPointer();
byte *src = peBuffer.Fetch(rva, bytesRequested);
for (int i = 0; i < bytesRequested; i++)
{
dst[i] = src[i];
}
bytesRead = bytesRequested;
return(S_OK);
}
file.FreeBuff(peBuffer);
}
}
return(E_FAIL);
}
public int GetMetadata(IntPtr self, string filename, uint imageTimestamp, uint imageSize, IntPtr mvid, uint mdRva, uint flags, uint bufferSize, byte[] buffer, IntPtr dataSize)
{
string filePath = _dataTarget.SymbolLocator.FindBinary(filename, imageTimestamp, imageSize, true);
if (filePath == null)
{
return(E_FAIL);
}
// We do not put a using statement here to prevent needing to load/unload the binary over and over.
PEFile file = _dataTarget.FileLoader.LoadPEFile(filePath);
if (file == null)
{
return(E_FAIL);
}
var comDescriptor = file.Header.ComDescriptorDirectory;
if (comDescriptor.VirtualAddress == 0)
{
return(E_FAIL);
}
PEBuffer peBuffer = file.AllocBuff();
if (mdRva == 0)
{
IntPtr hdr = file.SafeFetchRVA((int)comDescriptor.VirtualAddress, (int)comDescriptor.Size, peBuffer);
IMAGE_COR20_HEADER corhdr = (IMAGE_COR20_HEADER)Marshal.PtrToStructure(hdr, typeof(IMAGE_COR20_HEADER));
if (bufferSize < corhdr.MetaData.Size)
{
file.FreeBuff(peBuffer);
return(E_FAIL);
}
mdRva = corhdr.MetaData.VirtualAddress;
bufferSize = corhdr.MetaData.Size;
}
IntPtr ptr = file.SafeFetchRVA((int)mdRva, (int)bufferSize, peBuffer);
Marshal.Copy(ptr, buffer, 0, (int)bufferSize);
file.FreeBuff(peBuffer);
return(S_OK);
}
public unsafe int ReadVirtual(ulong address, IntPtr buffer, int bytesRequested, out int bytesRead)
{
int read = 0;
if (_dataReader.ReadMemory(address, buffer, bytesRequested, out read))
{
bytesRead = read;
return(0);
}
ModuleInfo info = GetModule(address);
if (info != null)
{
PEFile file = _dataTarget.SymbolLocator.LoadBinary(info.FileName, info.TimeStamp, info.FileSize, true);
if (file != null)
{
PEBuffer peBuffer = file.AllocBuff();
int rva = checked ((int)(address - info.ImageBase));
if (file.Header.TryGetFileOffsetFromRva(rva, out rva))
{
byte *dst = (byte *)buffer.ToPointer();
byte *src = peBuffer.Fetch(rva, bytesRequested);
for (int i = 0; i < bytesRequested; i++)
{
dst[i] = src[i];
}
bytesRead = bytesRequested;
return(0);
}
file.FreeBuff(peBuffer);
}
}
bytesRead = 0;
return(-1);
}
public int GetMetadata(string filename, uint imageTimestamp, uint imageSize, IntPtr mvid, uint mdRva, uint flags, uint bufferSize, byte[] buffer, IntPtr dataSize)
{
PEFile file = _dataTarget.SymbolLocator.LoadBinary(filename, imageTimestamp, imageSize, true);
if (file == null)
{
return(-1);
}
var comDescriptor = file.Header.ComDescriptorDirectory;
if (comDescriptor.VirtualAddress == 0)
{
return(-1);
}
PEBuffer peBuffer = file.AllocBuff();
if (mdRva == 0)
{
IntPtr hdr = file.SafeFetchRVA((int)comDescriptor.VirtualAddress, (int)comDescriptor.Size, peBuffer);
IMAGE_COR20_HEADER corhdr = (IMAGE_COR20_HEADER)Marshal.PtrToStructure(hdr, typeof(IMAGE_COR20_HEADER));
if (bufferSize < corhdr.MetaData.Size)
{
file.FreeBuff(peBuffer);
return(-1);
}
mdRva = corhdr.MetaData.VirtualAddress;
bufferSize = corhdr.MetaData.Size;
}
IntPtr ptr = file.SafeFetchRVA((int)mdRva, (int)bufferSize, peBuffer);
Marshal.Copy(ptr, buffer, 0, (int)bufferSize);
file.FreeBuff(peBuffer);
return(0);
}
