static void Main(string[] args)
{
var ofd = new OpenFileDialog();
ofd.Filter = "ELF file or Mach-O file|*.*";
if (ofd.ShowDialog() == DialogResult.OK)
{
var il2cppfile = File.ReadAllBytes(ofd.FileName);
ofd.Filter = "global-metadata|global-metadata.dat";
if (ofd.ShowDialog() == DialogResult.OK)
{
try
{
var metadatafile = File.ReadAllBytes(ofd.FileName);
//判断Metadata的magic和version
var metadatamagic = BitConverter.ToUInt32(metadatafile, 0);
if (metadatamagic != 0xFAB11BAF)
{
throw new Exception("ERROR: Metadata file supplied is not valid metadata file.");
}
var metadataversion = BitConverter.ToUInt32(metadatafile, 4);
switch (metadataversion)
{
default:
throw new Exception($"ERROR: Metadata file supplied is not a supported version[{metadataversion}].");
case 23:
v23.Dump.Dumpv23(il2cppfile, metadatafile);
break;
case 21:
case 22:
//判断il2cpp的magic
var il2cppmagic = BitConverter.ToUInt32(il2cppfile, 0);
var isElf = false;
switch (il2cppmagic)
{
default:
throw new Exception("ERROR: il2cpp file not supported.");
case 0x464c457f:
isElf = true;
goto case 0xFEEDFACE;
case 0xCAFEBABE:
case 0xBEBAFECA:
Console.Write("WARNING: fat macho will only dump the first object file.");
var fat = new MachoFat(new MemoryStream(il2cppfile));
il2cppfile = fat.GetFirstMacho();
var magic = fat.GetFirstMachoMagic();
if (magic == 0xFEEDFACF) // 64-bit mach object file
{
goto case 0xFEEDFACF;
}
else
{
goto case 0xFEEDFACE;
}
case 0xFEEDFACF: // 64-bit mach object file
_64bit.Dump.Dump64bit(il2cppfile, metadatafile);
break;
case 0xFEEDFACE: // 32-bit mach object file
Console.WriteLine("Select Mode: 1. Manual 2.Auto");
var key = Console.ReadKey(true);
if (key.KeyChar == '2')
{
metadata = new Metadata(new MemoryStream(metadatafile));
if (isElf)
{
il2cpp = new Elf(new MemoryStream(il2cppfile));
}
else
{
il2cpp = new Macho(new MemoryStream(il2cppfile));
}
if (!il2cpp.Auto())
{
throw new Exception(
"ERROR: Unable to process file automatically, try to use manual mode.");
}
}
else if (key.KeyChar == '1')
{
Console.Write("Input CodeRegistration(R0): ");
var codeRegistration = Convert.ToUInt32(Console.ReadLine(), 16);
Console.Write("Input MetadataRegistration(R1): ");
var metadataRegistration = Convert.ToUInt32(Console.ReadLine(), 16);
metadata = new Metadata(new MemoryStream(metadatafile));
if (isElf)
{
il2cpp = new Elf(new MemoryStream(il2cppfile), codeRegistration,
metadataRegistration);
}
else
{
il2cpp = new Macho(new MemoryStream(il2cppfile), codeRegistration,
metadataRegistration);
}
}
else
{
return;
}
var writer = new StreamWriter(new FileStream("dump.cs", FileMode.Create));
Console.WriteLine("Dumping...");
//dump_image();
for (var imageIndex = 0; imageIndex < metadata.uiImageCount; imageIndex++)
{
var imageDef = metadata.imageDefs[imageIndex];
writer.Write(
$"// Image {imageIndex}: {metadata.GetString(imageDef.nameIndex)} - {imageDef.typeStart}\n");
}
for (var idx = 0; idx < metadata.uiNumTypes; ++idx)
{
try
{
//dump_class(i);
var typeDef = metadata.typeDefs[idx];
writer.Write($"\n// Namespace: {metadata.GetString(typeDef.namespaceIndex)}\n");
writer.Write(GetCustomAttribute(typeDef.customAttributeIndex));
if ((typeDef.flags & TYPE_ATTRIBUTE_SERIALIZABLE) != 0)
{
writer.Write("[Serializable]\n");
}
if ((typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK) == TYPE_ATTRIBUTE_PUBLIC)
{
writer.Write("public ");
}
else if ((typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK) ==
TYPE_ATTRIBUTE_NOT_PUBLIC)
{
writer.Write("internal ");
}
if ((typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0)
{
writer.Write("abstract ");
}
if ((typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0)
{
writer.Write("sealed ");
}
if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0)
{
writer.Write("interface ");
}
else
{
writer.Write("class ");
}
writer.Write($"{metadata.GetString(typeDef.nameIndex)}");
if (typeDef.parentIndex >= 0)
{
var parent = il2cpp.types[typeDef.parentIndex];
var parentname = get_type_name(parent);
if (parentname != "object")
{
writer.Write($" : {parentname}");
}
}
writer.Write($" // TypeDefIndex: {idx}\n{{\n");
if (typeDef.field_count > 0)
{
writer.Write("\t// Fields\n");
var fieldEnd = typeDef.fieldStart + typeDef.field_count;
for (var i = typeDef.fieldStart; i < fieldEnd; ++i)
{
//dump_field(i, idx, i - typeDef.fieldStart);
var pField = metadata.fieldDefs[i];
var pType = il2cpp.types[pField.typeIndex];
var pDefault = metadata.GetFieldDefaultFromIndex(i);
writer.Write(GetCustomAttribute(pField.customAttributeIndex, "\t"));
writer.Write("\t");
if ((pType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK) ==
FIELD_ATTRIBUTE_PRIVATE)
{
writer.Write("private ");
}
else if ((pType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK) ==
FIELD_ATTRIBUTE_PUBLIC)
{
writer.Write("public ");
}
else if ((pType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK) ==
FIELD_ATTRIBUTE_FAMILY)
{
writer.Write("protected ");
}
if ((pType.attrs & FIELD_ATTRIBUTE_STATIC) != 0)
{
writer.Write("static ");
}
if ((pType.attrs & FIELD_ATTRIBUTE_INIT_ONLY) != 0)
{
writer.Write("readonly ");
}
writer.Write(
$"{get_type_name(pType)} {metadata.GetString(pField.nameIndex)}");
if (pDefault != null && pDefault.dataIndex != -1)
{
var pointer = metadata.GetDefaultValueFromIndex(pDefault.dataIndex);
if (pointer > 0)
{
var pTypeToUse = il2cpp.types[pDefault.typeIndex];
metadata.Position = pointer;
object multi = null;
switch (pTypeToUse.type)
{
case Il2CppTypeEnum.IL2CPP_TYPE_BOOLEAN:
multi = metadata.ReadBoolean();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_U1:
multi = metadata.ReadByte();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_I1:
multi = metadata.ReadSByte();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_CHAR:
multi = metadata.ReadChar();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_U2:
multi = metadata.ReadUInt16();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_I2:
multi = metadata.ReadInt16();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_U4:
multi = metadata.ReadUInt32();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_I4:
multi = metadata.ReadInt32();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_U8:
multi = metadata.ReadUInt64();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_I8:
multi = metadata.ReadInt64();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_R4:
multi = metadata.ReadSingle();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_R8:
multi = metadata.ReadDouble();
break;
case Il2CppTypeEnum.IL2CPP_TYPE_STRING:
var uiLen = metadata.ReadInt32();
multi = Encoding.UTF8.GetString(metadata.ReadBytes(uiLen));
break;
}
if (multi is string)
{
writer.Write($" = \"{multi}\"");
}
else if (multi != null)
{
writer.Write($" = {multi}");
}
}
}
writer.Write("; // 0x{0:x}\n",
il2cpp.GetFieldOffsetFromIndex(idx, i - typeDef.fieldStart));
}
writer.Write("\n");
}
if (typeDef.property_count > 0)
{
//dump_property(i);
writer.Write("\t// Properties\n");
var propertyEnd = typeDef.propertyStart + typeDef.property_count;
for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
{
var propertydef = metadata.propertyDefs[i];
writer.Write(GetCustomAttribute(propertydef.customAttributeIndex, "\t"));
writer.Write("\t");
if (propertydef.get >= 0)
{
var methodDef =
metadata.methodDefs[typeDef.methodStart + propertydef.get];
var pReturnType = il2cpp.types[methodDef.returnType];
if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_PRIVATE)
{
writer.Write("private ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_PUBLIC)
{
writer.Write("public ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_FAMILY)
{
writer.Write("protected ");
}
if ((methodDef.flags & METHOD_ATTRIBUTE_ABSTRACT) != 0)
{
writer.Write("abstract ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_VIRTUAL) != 0)
{
writer.Write("virtual ");
}
if ((methodDef.flags & METHOD_ATTRIBUTE_STATIC) != 0)
{
writer.Write("static ");
}
writer.Write(
$"{get_type_name(pReturnType)} {metadata.GetString(propertydef.nameIndex)} {{ ");
}
else if (propertydef.set > 0)
{
var methodDef =
metadata.methodDefs[typeDef.methodStart + propertydef.set];
if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_PRIVATE)
{
writer.Write("private ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_PUBLIC)
{
writer.Write("public ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_FAMILY)
{
writer.Write("protected ");
}
if ((methodDef.flags & METHOD_ATTRIBUTE_ABSTRACT) != 0)
{
writer.Write("abstract ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_VIRTUAL) != 0)
{
writer.Write("virtual ");
}
if ((methodDef.flags & METHOD_ATTRIBUTE_STATIC) != 0)
{
writer.Write("static ");
}
var pParam = metadata.parameterDefs[methodDef.parameterStart];
var pType = il2cpp.types[pParam.typeIndex];
writer.Write(
$"{get_type_name(pType)} {metadata.GetString(propertydef.nameIndex)} {{ ");
}
if (propertydef.get >= 0)
{
writer.Write("get; ");
}
if (propertydef.set >= 0)
{
writer.Write("set; ");
}
writer.Write("}");
writer.Write("\n");
}
writer.Write("\n");
}
if (typeDef.method_count > 0)
{
writer.Write("\t// Methods\n");
var methodEnd = typeDef.methodStart + typeDef.method_count;
for (var i = typeDef.methodStart; i < methodEnd; ++i)
{
//dump_method(i);
var methodDef = metadata.methodDefs[i];
writer.Write(GetCustomAttribute(methodDef.customAttributeIndex, "\t"));
writer.Write("\t");
var pReturnType = il2cpp.types[methodDef.returnType];
if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_PRIVATE)
{
writer.Write("private ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_PUBLIC)
{
writer.Write("public ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) ==
METHOD_ATTRIBUTE_FAMILY)
{
writer.Write("protected ");
}
if ((methodDef.flags & METHOD_ATTRIBUTE_ABSTRACT) != 0)
{
writer.Write("abstract ");
}
else if ((methodDef.flags & METHOD_ATTRIBUTE_VIRTUAL) != 0)
{
writer.Write("virtual ");
}
if ((methodDef.flags & METHOD_ATTRIBUTE_STATIC) != 0)
{
writer.Write("static ");
}
writer.Write(
$"{get_type_name(pReturnType)} {metadata.GetString(methodDef.nameIndex)}(");
for (var j = 0; j < methodDef.parameterCount; ++j)
{
var pParam = metadata.parameterDefs[methodDef.parameterStart + j];
var szParamName = metadata.GetString(pParam.nameIndex);
var pType = il2cpp.types[pParam.typeIndex];
var szTypeName = get_type_name(pType);
if ((pType.attrs & PARAM_ATTRIBUTE_OPTIONAL) != 0)
{
writer.Write("optional ");
}
if ((pType.attrs & PARAM_ATTRIBUTE_OUT) != 0)
{
writer.Write("out ");
}
if (j != methodDef.parameterCount - 1)
{
writer.Write($"{szTypeName} {szParamName}, ");
}
else
{
writer.Write($"{szTypeName} {szParamName}");
}
}
if (methodDef.methodIndex >= 0)
{
writer.Write("); // {0:x}\n",
il2cpp.methodPointers[methodDef.methodIndex]);
}
else
{
writer.Write("); // 0\n");
}
}
}
writer.Write("}\n");
}
catch (Exception e)
{
Console.WriteLine("ERROR: Some errors in dumping");
writer.Write("/*");
writer.Write($"{e.Message}\n{e.StackTrace}\n");
writer.Write("*/\n}\n");
}
}
writer.Close();
Console.WriteLine("Done !");
break;
}
break;
}
}
catch (Exception e)
{
Console.WriteLine($"{e.Message}\r\n{e.StackTrace}");
}
Console.WriteLine("Press any key to exit...");
Console.ReadKey(true);
}
}
}