private static NdrBaseTypeReference FixupUserMarshal(NdrParseContext context, NdrUserMarshalTypeReference type)
{
if (context.StubDesc.aUserMarshalQuadruple == IntPtr.Zero)
{
return(type);
}
IntPtr marshal_ptr = context.Reader.ReadIntPtr(context.StubDesc.aUserMarshalQuadruple
+ (type.QuadrupleIndex * context.Reader.PointerSize * 4));
// If in process try and read out known type by walking pointers.
if (context.Reader.InProcess && !context.HasFlag(NdrParserFlags.IgnoreUserMarshal))
{
using (var module = SafeLoadLibraryHandle.GetModuleHandle(context.StubDesc.aUserMarshalQuadruple))
{
if (module == null)
{
return(type);
}
if (m_marshalers == null)
{
m_marshalers = new StandardUserMarshalers();
}
NdrKnownTypes known_type = m_marshalers.GetKnownType(marshal_ptr);
if (known_type == NdrKnownTypes.None)
{
IntPtr usersize_ptr = GetTargetAddress(module, marshal_ptr);
known_type = m_marshalers.GetKnownType(usersize_ptr);
}
if (known_type != NdrKnownTypes.None)
{
return(new NdrKnownTypeReference(known_type));
}
}
}
// If we have a symbol resolver then see if we can get it from the symbol name.
if (context.SymbolResolver != null)
{
string name = context.SymbolResolver.GetSymbolForAddress(marshal_ptr);
int index = name.IndexOf("_UserSize", StringComparison.OrdinalIgnoreCase);
if (index > 0)
{
name = name.Substring(0, index);
if (Enum.TryParse(name.Substring(0, index), true, out NdrKnownTypes known_type) &&
known_type != NdrKnownTypes.None)
{
return(new NdrKnownTypeReference(known_type));
}
return(new NdrNamedTypeReference(name));
}
}
return(type);
}
public StandardUserMarshaler(SafeLoadLibraryHandle lib, NdrKnownTypes known_type)
{
_size_ptr = lib.GetProcAddress(string.Format("{0}_UserSize", known_type));
_size_64_ptr = lib.GetProcAddress(string.Format("{0}_UserSize64", known_type));
KnownType = known_type;
}
public StandardUserMarshaler(SafeLoadLibraryHandle lib, NdrKnownTypes known_type)
{
_size_ptr = lib.GetProcAddress($"{known_type}_UserSize");
_size_64_ptr = lib.GetProcAddress($"{known_type}_UserSize64");
KnownType = known_type;
}
public NdrKnownTypeReference(NdrKnownTypes type)
: base(NdrFormatCharacter.FC_USER_MARSHAL)
{
KnownType = type;
}
