private static bool Init(byte[] il2cppBytes, byte[] metadataBytes, string stringVersion, int mode, out Metadata metadata, out Il2Cpp il2Cpp)
{
var sanity = BitConverter.ToUInt32(metadataBytes, 0);
if (sanity != 0xFAB11BAF)
{
throw new Exception("ERROR: Metadata file supplied is not valid metadata file.");
}
float fixedMetadataVersion;
var metadataVersion = BitConverter.ToInt32(metadataBytes, 4);
if (metadataVersion == 24)
{
if (stringVersion == null)
{
Console.WriteLine("Input Unity version: ");
stringVersion = Console.ReadLine();
}
try
{
var versionSplit = Array.ConvertAll(Regex.Replace(stringVersion, @"\D", ".").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries), int.Parse);
var unityVersion = new Version(versionSplit[0], versionSplit[1]);
if (unityVersion >= Unity20191)
{
fixedMetadataVersion = 24.2f;
}
else if (unityVersion >= Unity20183)
{
fixedMetadataVersion = 24.1f;
}
else
{
fixedMetadataVersion = metadataVersion;
}
}
catch
{
throw new Exception("You must enter the correct Unity version number");
}
}
else
{
fixedMetadataVersion = metadataVersion;
}
Console.WriteLine("Initializing metadata...");
metadata = new Metadata(new MemoryStream(metadataBytes), fixedMetadataVersion);
//判断il2cpp的magic
var il2cppMagic = BitConverter.ToUInt32(il2cppBytes, 0);
var isElf = false;
var isPE = false;
var is64bit = false;
var isNSO = false;
switch (il2cppMagic)
{
default:
throw new Exception("ERROR: il2cpp file not supported.");
case 0x304F534E:
isNSO = true;
is64bit = true;
break;
case 0x905A4D: //PE
isPE = true;
break;
case 0x464c457f: //ELF
isElf = true;
if (il2cppBytes[4] == 2) //ELF64
{
is64bit = true;
}
break;
case 0xCAFEBABE: //FAT Mach-O
case 0xBEBAFECA:
var machofat = new MachoFat(new MemoryStream(il2cppBytes));
Console.Write("Select Platform: ");
for (var i = 0; i < machofat.fats.Length; i++)
{
var fat = machofat.fats[i];
Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
}
Console.WriteLine();
var key = Console.ReadKey(true);
var index = int.Parse(key.KeyChar.ToString()) - 1;
var magic = machofat.fats[index % 2].magic;
il2cppBytes = machofat.GetMacho(index % 2);
if (magic == 0xFEEDFACF)
{
goto case 0xFEEDFACF;
}
else
{
goto case 0xFEEDFACE;
}
case 0xFEEDFACF: // 64bit Mach-O
is64bit = true;
break;
case 0xFEEDFACE: // 32bit Mach-O
break;
}
var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.version;
Console.WriteLine("Initializing il2cpp file...");
if (isNSO)
{
var nso = new NSO(new MemoryStream(il2cppBytes), version, metadata.maxMetadataUsages);
il2Cpp = nso.UnCompress();
}
else if (isPE)
{
il2Cpp = new PE(new MemoryStream(il2cppBytes), version, metadata.maxMetadataUsages);
}
else if (isElf)
{
if (is64bit)
{
il2Cpp = new Elf64(new MemoryStream(il2cppBytes), version, metadata.maxMetadataUsages);
}
else
{
il2Cpp = new Elf(new MemoryStream(il2cppBytes), version, metadata.maxMetadataUsages);
}
}
else if (is64bit)
{
il2Cpp = new Macho64(new MemoryStream(il2cppBytes), version, metadata.maxMetadataUsages);
}
else
{
il2Cpp = new Macho(new MemoryStream(il2cppBytes), version, metadata.maxMetadataUsages);
}
if (mode == 0)
{
Console.WriteLine("Select Mode: 1.Manual 2.Auto 3.Auto(Plus) 4.Auto(Symbol)");
var modeKey = Console.ReadKey(true);
mode = int.Parse(modeKey.KeyChar.ToString());
}
if (mode != 1)
{
Console.WriteLine("Searching...");
}
try
{
bool flag;
switch (mode)
{
case 1: //Manual
Console.Write("Input CodeRegistration: ");
var codeRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
Console.Write("Input MetadataRegistration: ");
var metadataRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
il2Cpp.Init(codeRegistration, metadataRegistration);
flag = true;
break;
case 2: //Auto
flag = il2Cpp.Search();
break;
case 3: //Auto(Plus)
flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length);
break;
case 4: //Auto(Symbol)
flag = il2Cpp.SymbolSearch();
break;
default:
Console.WriteLine("ERROR: You have to choose a mode.");
return(false);
}
if (!flag)
{
throw new Exception();
}
}
catch
{
throw new Exception("ERROR: Can't use this mode to process file, try another mode.");
}
return(true);
}
public IL2CppDump(Stream il2cppStream, Stream metaStream, Config config = null)
{
metadata = new Metadata(metaStream);
this.config = config ?? new Config();
var buffer = new byte[5];
il2cppStream.Read(buffer, 0, 5);
il2cppStream.Seek(0, SeekOrigin.Begin);
int version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.version;
uint magic = BitConverter.ToUInt32(buffer, 0);
checkMagic:
switch (magic)
{
case PE:
il2cpp = new PE(il2cppStream, version, metadata.maxMetadataUsages);
break;
case ELF:
if (buffer[4] == 2)
{
il2cpp = new Elf64(il2cppStream, version, metadata.maxMetadataUsages);
}
else
{
il2cpp = new Elf(il2cppStream, version, metadata.maxMetadataUsages);
}
break;
case FAT:
case FAT_LE:
var machofat = new MachoFat(il2cppStream);
int index = 0;
uint preferredMagic = 0;
switch (this.config.PreferredMachoVersion)
{
case MachoVersion.Macho32: preferredMagic = MACHO_32; break;
case MachoVersion.Macho64: preferredMagic = MACHO_64; break;
}
for (int i = 0; i < machofat.fats.Length; i++)
{
if (machofat.fats[i].magic == preferredMagic)
{
index = i;
magic = preferredMagic;
break;
}
}
Stream fatStream = il2cppStream;
il2cppStream = new MemoryStream(machofat.GetMacho(index));
fatStream.Close();
goto checkMagic;
case MACHO_64:
il2cpp = new Macho64(il2cppStream, version, metadata.maxMetadataUsages);
break;
case MACHO_32:
il2cpp = new Macho(il2cppStream, version, metadata.maxMetadataUsages);
break;
default: throw new InvalidDataException("Unknown IL2Cpp binary format.");
}
}
private static bool Init(byte[] il2cppBytes, byte[] metadataBytes, out Metadata metadata, out Il2Cpp il2Cpp)
{
var sanity = BitConverter.ToUInt32(metadataBytes, 0);
if (sanity != 0xFAB11BAF)
{
throw new InvalidDataException("ERROR: Metadata file supplied is not valid metadata file.");
}
Console.WriteLine("Initializing metadata...");
metadata = new Metadata(new MemoryStream(metadataBytes));
Console.WriteLine($"Metadata Version: {metadata.Version}");
//判断il2cpp的magic
var il2cppMagic = BitConverter.ToUInt32(il2cppBytes, 0);
var isElf = false;
var isPE = false;
var is64bit = false;
var isNSO = false;
switch (il2cppMagic)
{
default:
throw new NotSupportedException("ERROR: il2cpp file not supported.");
case 0x304F534E:
isNSO = true;
is64bit = true;
break;
case 0x905A4D: //PE
isPE = true;
break;
case 0x464c457f: //ELF
isElf = true;
if (il2cppBytes[4] == 2) //ELF64
{
is64bit = true;
}
break;
case 0xCAFEBABE: //FAT Mach-O
case 0xBEBAFECA:
var machofat = new MachoFat(new MemoryStream(il2cppBytes));
Console.Write("Select Platform: ");
for (var i = 0; i < machofat.fats.Length; i++)
{
var fat = machofat.fats[i];
Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
}
Console.WriteLine();
var key = Console.ReadKey(true);
var index = int.Parse(key.KeyChar.ToString()) - 1;
var magic = machofat.fats[index % 2].magic;
il2cppBytes = machofat.GetMacho(index % 2);
if (magic == 0xFEEDFACF)
{
goto case 0xFEEDFACF;
}
else
{
goto case 0xFEEDFACE;
}
case 0xFEEDFACF: // 64bit Mach-O
is64bit = true;
break;
case 0xFEEDFACE: // 32bit Mach-O
break;
}
var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.Version;
Console.WriteLine("Initializing il2cpp file...");
var il2CppMemory = new MemoryStream(il2cppBytes);
if (isNSO)
{
var nso = new NSO(il2CppMemory, version, metadata.maxMetadataUsages);
il2Cpp = nso.UnCompress();
}
else if (isPE)
{
il2Cpp = new PE(il2CppMemory, version, metadata.maxMetadataUsages);
}
else if (isElf)
{
if (is64bit)
{
il2Cpp = new Elf64(il2CppMemory, version, metadata.maxMetadataUsages);
}
else
{
il2Cpp = new Elf(il2CppMemory, version, metadata.maxMetadataUsages);
}
}
else if (is64bit)
{
il2Cpp = new Macho64(il2CppMemory, version, metadata.maxMetadataUsages);
}
else
{
il2Cpp = new Macho(il2CppMemory, version, metadata.maxMetadataUsages);
}
Console.WriteLine($"Il2Cpp Version: {il2Cpp.Version}");
Console.WriteLine("Searching...");
try
{
var flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length);
if (!flag)
{
flag = il2Cpp.Search();
}
if (!flag)
{
flag = il2Cpp.SymbolSearch();
}
if (!flag)
{
Console.WriteLine("ERROR: Can't use auto mode to process file, try manual mode.");
Console.Write("Input CodeRegistration: ");
var codeRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
Console.Write("Input MetadataRegistration: ");
var metadataRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
il2Cpp.Init(codeRegistration, metadataRegistration);
return(true);
}
}
catch (Exception e)
{
Console.WriteLine(e);
Console.WriteLine("ERROR: An error occurred while processing.");
return(false);
}
return(true);
}
static void Main(string[] args)
{
config = File.Exists("config.json") ? new JavaScriptSerializer().Deserialize <Config>(File.ReadAllText("config.json")) : new Config();
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
{
Console.WriteLine("Initializing...");
metadata = new Metadata(new MemoryStream(File.ReadAllBytes(ofd.FileName)));
Console.Clear();
//判断il2cpp的magic
var il2cppmagic = BitConverter.ToUInt32(il2cppfile, 0);
var isElf = false;
var is64bit = false;
switch (il2cppmagic)
{
default:
throw new Exception("ERROR: il2cpp file not supported.");
case 0x464c457f: //ELF
isElf = true;
goto case 0xFEEDFACE;
case 0xCAFEBABE: //FAT header
case 0xBEBAFECA:
var machofat = new MachoFat(new MemoryStream(il2cppfile));
Console.Write("Select Platform: ");
for (var i = 0; i < machofat.fats.Length; i++)
{
var fat = machofat.fats[i];
if (fat.magic == 0xFEEDFACF) //64-bit mach object file
{
Console.Write($"{i + 1}.64bit ");
}
else
{
Console.Write($"{i + 1}.32bit ");
}
}
Console.WriteLine();
var key = Console.ReadKey(true);
var index = int.Parse(key.KeyChar.ToString()) - 1;
var magic = machofat.fats[index].magic;
il2cppfile = machofat.GetMacho(index);
if (magic == 0xFEEDFACF) // 64-bit mach object file
{
goto case 0xFEEDFACF;
}
else
{
goto case 0xFEEDFACE;
}
case 0xFEEDFACF: // 64-bit mach object file
is64bit = true;
goto case 0xFEEDFACE;
case 0xFEEDFACE: // 32-bit mach object file
Console.WriteLine("Select Mode: 1.Manual 2.Auto 3.Auto(Advanced) 4.Auto(Plus)");
key = Console.ReadKey(true);
var version = config.forceil2cppversion ? config.forceversion : metadata.version;
switch (key.KeyChar)
{
case '2':
case '3':
case '4':
if (isElf)
{
il2cpp = new Elf(new MemoryStream(il2cppfile), version, metadata.maxmetadataUsages);
}
else if (is64bit)
{
il2cpp = new Macho64(new MemoryStream(il2cppfile), version, metadata.maxmetadataUsages);
}
else
{
il2cpp = new Macho(new MemoryStream(il2cppfile), version, metadata.maxmetadataUsages);
}
try
{
if (key.KeyChar == '2' ?
!il2cpp.Search() :
key.KeyChar == '3' ?
!il2cpp.AdvancedSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0)) :
!il2cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length))
{
throw new Exception();
}
}
catch
{
throw new Exception("ERROR: Unable to process file automatically, try to use other mode.");
}
break;
case '1':
{
Console.Write("Input g_CodeRegistration: ");
var codeRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
Console.Write("Input g_MetadataRegistration: ");
var metadataRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
if (isElf)
{
il2cpp = new Elf(new MemoryStream(il2cppfile), codeRegistration, metadataRegistration, version, metadata.maxmetadataUsages);
}
else if (is64bit)
{
il2cpp = new Macho64(new MemoryStream(il2cppfile), codeRegistration, metadataRegistration, version, metadata.maxmetadataUsages);
}
else
{
il2cpp = new Macho(new MemoryStream(il2cppfile), codeRegistration, metadataRegistration, version, metadata.maxmetadataUsages);
}
break;
}
default:
return;
}
var writer = new StreamWriter(new FileStream("dump.cs", FileMode.Create), new UTF8Encoding(false));
Console.WriteLine("Dumping...");
//Script
var scriptwriter = new StreamWriter(new FileStream("script.py", FileMode.Create), new UTF8Encoding(false));
scriptwriter.WriteLine(Resource1.ida);
//dump image;
for (var imageIndex = 0; imageIndex < metadata.uiImageCount; imageIndex++)
{
var imageDef = metadata.imageDefs[imageIndex];
writer.Write($"// Image {imageIndex}: {metadata.GetStringFromIndex(imageDef.nameIndex)} - {imageDef.typeStart}\n");
}
//dump type;
for (var idx = 0; idx < metadata.uiNumTypes; ++idx)
{
try
{
var typeDef = metadata.typeDefs[idx];
var isStruct = false;
var isEnum = false;
var extends = new List <string>();
if (typeDef.parentIndex >= 0)
{
var parent = il2cpp.types[typeDef.parentIndex];
var parentname = GetTypeName(parent);
if (parentname == "ValueType")
{
isStruct = true;
}
else if (parentname == "Enum")
{
isEnum = true;
}
else if (parentname != "object")
{
extends.Add(parentname);
}
}
//implementedInterfaces
if (typeDef.interfaces_count > 0)
{
for (int i = 0; i < typeDef.interfaces_count; i++)
{
var @interface = il2cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]];
extends.Add(GetTypeName(@interface));
}
}
writer.Write($"\n// Namespace: {metadata.GetStringFromIndex(typeDef.namespaceIndex)}\n");
writer.Write(GetCustomAttribute(typeDef.customAttributeIndex));
if (config.dumpattribute && (typeDef.flags & TYPE_ATTRIBUTE_SERIALIZABLE) != 0)
{
writer.Write("[Serializable]\n");
}
var visibility = typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
switch (visibility)
{
case TYPE_ATTRIBUTE_PUBLIC:
case TYPE_ATTRIBUTE_NESTED_PUBLIC:
writer.Write("public ");
break;
case TYPE_ATTRIBUTE_NOT_PUBLIC:
case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
writer.Write("internal ");
break;
case TYPE_ATTRIBUTE_NESTED_PRIVATE:
writer.Write("private ");
break;
case TYPE_ATTRIBUTE_NESTED_FAMILY:
writer.Write("protected ");
break;
case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
writer.Write("protected internal ");
break;
}
if ((typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0 && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0)
{
writer.Write("static ");
}
else if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) == 0 && (typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0)
{
writer.Write("abstract ");
}
else if (!isStruct && !isEnum && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0)
{
writer.Write("sealed ");
}
if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0)
{
writer.Write("interface ");
}
else if (isStruct)
{
writer.Write("struct ");
}
else if (isEnum)
{
writer.Write("enum ");
}
else
{
writer.Write("class ");
}
writer.Write($"{metadata.GetStringFromIndex(typeDef.nameIndex)}");
if (extends.Count > 0)
{
writer.Write($" : {string.Join(", ", extends)}");
}
writer.Write($" // TypeDefIndex: {idx}\n{{\n");
//dump field
if (config.dumpfield && typeDef.field_count > 0)
{
writer.Write("\t// Fields\n");
var fieldEnd = typeDef.fieldStart + typeDef.field_count;
for (var i = typeDef.fieldStart; i < fieldEnd; ++i)
{
//dump_field(i, idx, i - typeDef.fieldStart);
var fieldDef = metadata.fieldDefs[i];
var fieldType = il2cpp.types[fieldDef.typeIndex];
var fieldDefault = metadata.GetFieldDefaultValueFromIndex(i);
writer.Write(GetCustomAttribute(fieldDef.customAttributeIndex, "\t"));
writer.Write("\t");
var access = fieldType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK;
switch (access)
{
case FIELD_ATTRIBUTE_PRIVATE:
writer.Write("private ");
break;
case FIELD_ATTRIBUTE_PUBLIC:
writer.Write("public ");
break;
case FIELD_ATTRIBUTE_FAMILY:
writer.Write("protected ");
break;
case FIELD_ATTRIBUTE_ASSEMBLY:
case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
writer.Write("internal ");
break;
case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
writer.Write("protected internal ");
break;
}
if ((fieldType.attrs & FIELD_ATTRIBUTE_LITERAL) != 0)
{
writer.Write("const ");
}
else
{
if ((fieldType.attrs & FIELD_ATTRIBUTE_STATIC) != 0)
{
writer.Write("static ");
}
if ((fieldType.attrs & FIELD_ATTRIBUTE_INIT_ONLY) != 0)
{
writer.Write("readonly ");
}
}
writer.Write($"{GetTypeName(fieldType)} {metadata.GetStringFromIndex(fieldDef.nameIndex)}");
if (fieldDefault != null && fieldDefault.dataIndex != -1)
{
var pointer = metadata.GetDefaultValueFromIndex(fieldDefault.dataIndex);
if (pointer > 0)
{
var pTypeToUse = il2cpp.types[fieldDefault.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 = BitConverter.ToChar(metadata.ReadBytes(2), 0);
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($" = \"{ToEscapedString((string)multi)}\"");
}
else if (multi is char)
{
var c = (int)(char)multi;
writer.Write($" = '\\x{c:x}'");
}
else if (multi != null)
{
writer.Write($" = {multi}");
}
}
}
if (config.dumpfieldoffset)
{
writer.Write("; // 0x{0:X}\n", il2cpp.GetFieldOffsetFromIndex(idx, i - typeDef.fieldStart, i));
}
else
{
writer.Write(";\n");
}
}
writer.Write("\n");
}
//dump property
if (config.dumpproperty && typeDef.property_count > 0)
{
writer.Write("\t// Properties\n");
var propertyEnd = typeDef.propertyStart + typeDef.property_count;
for (var i = typeDef.propertyStart; i < propertyEnd; ++i)
{
var propertyDef = metadata.propertyDefs[i];
writer.Write(GetCustomAttribute(propertyDef.customAttributeIndex, "\t"));
writer.Write("\t");
if (propertyDef.get >= 0)
{
var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.get];
writer.Write(GetModifiers(methodDef));
var pReturnType = il2cpp.types[methodDef.returnType];
writer.Write($"{GetTypeName(pReturnType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ ");
}
else if (propertyDef.set > 0)
{
var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set];
writer.Write(GetModifiers(methodDef));
var pParam = metadata.parameterDefs[methodDef.parameterStart];
var pType = il2cpp.types[pParam.typeIndex];
writer.Write($"{GetTypeName(pType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ ");
}
if (propertyDef.get >= 0)
{
writer.Write("get; ");
}
if (propertyDef.set >= 0)
{
writer.Write("set; ");
}
writer.Write("}");
writer.Write("\n");
}
writer.Write("\n");
}
//dump method
if (config.dumpmethod && typeDef.method_count > 0)
{
writer.Write("\t// Methods\n");
var methodEnd = typeDef.methodStart + typeDef.method_count;
for (var i = typeDef.methodStart; i < methodEnd; ++i)
{
var methodDef = metadata.methodDefs[i];
writer.Write(GetCustomAttribute(methodDef.customAttributeIndex, "\t"));
writer.Write("\t");
writer.Write(GetModifiers(methodDef));
var pReturnType = il2cpp.types[methodDef.returnType];
writer.Write($"{GetTypeName(pReturnType)} {metadata.GetStringFromIndex(methodDef.nameIndex)}(");
for (var j = 0; j < methodDef.parameterCount; ++j)
{
var pParam = metadata.parameterDefs[methodDef.parameterStart + j];
var szParamName = metadata.GetStringFromIndex(pParam.nameIndex);
var pType = il2cpp.types[pParam.typeIndex];
var szTypeName = GetTypeName(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("); // 0x{0:X}\n", il2cpp.methodPointers[methodDef.methodIndex]);
//Script - method
var name = ToEscapedString(metadata.GetStringFromIndex(typeDef.nameIndex) + "$$" + metadata.GetStringFromIndex(methodDef.nameIndex));
scriptwriter.WriteLine($"SetMethod(0x{il2cpp.methodPointers[methodDef.methodIndex]:X}, '{name}')");
//
}
else
{
writer.Write("); // 0\n");
}
}
}
writer.Write("}\n");
}
catch (Exception e)
{
Console.WriteLine("ERROR: Some errors in dumping");
writer.Write("/*");
writer.Write($"{e.Message}\n{e.StackTrace}\n");
writer.Write("*/\n}\n");
}
}
//Script - stringLiteral
if (il2cpp.version > 16)
{
foreach (var i in metadata.stringLiteralsdic)
{
scriptwriter.WriteLine($"SetString(0x{il2cpp.metadataUsages[i.Key]:X}, r'{ToEscapedString(i.Value)}')");
}
}
//Script - MakeFunction
var orderedPointers = il2cpp.methodPointers.ToList();
orderedPointers.AddRange(il2cpp.genericMethodPointers.Where(x => x > 0));
orderedPointers.AddRange(il2cpp.invokerPointers);
orderedPointers.AddRange(il2cpp.customAttributeGenerators);
orderedPointers = orderedPointers.OrderBy(x => x).ToList();
for (int i = 0; i < orderedPointers.Count - 1; i++)
{
scriptwriter.WriteLine($"MakeFunction(0x{orderedPointers[i]:X}, 0x{orderedPointers[i + 1]:X})");
}
//
writer.Close();
scriptwriter.Close();
Console.WriteLine("Done !");
Console.WriteLine("Create DummyDll...");
//DummyDll
if (Directory.Exists("DummyDll"))
{
Directory.Delete("DummyDll", true);
}
Directory.CreateDirectory("DummyDll");
Directory.SetCurrentDirectory("DummyDll");
var dummy = new DummyAssemblyCreator(metadata, il2cpp);
foreach (var assembly in dummy.Assemblies)
{
var stream = new MemoryStream();
assembly.Write(stream);
File.WriteAllBytes(assembly.MainModule.Name, stream.ToArray());
}
Console.WriteLine("Done !");
//
break;
}
}
catch (Exception e)
{
Console.WriteLine($"{e.Message}\r\n{e.StackTrace}");
}
Console.WriteLine("Press any key to exit...");
Console.ReadKey(true);
}
}
}
private static bool Init(string il2cppPath, string metadataPath, out Metadata metadata, out Il2Cpp il2Cpp)
{
Console.WriteLine("Initializing metadata...");
var metadataBytes = File.ReadAllBytes(metadataPath);
metadata = new Metadata(new MemoryStream(metadataBytes));
Console.WriteLine($"Metadata Version: {metadata.Version}");
Console.WriteLine("Initializing il2cpp file...");
var il2cppBytes = File.ReadAllBytes(il2cppPath);
var il2cppMagic = BitConverter.ToUInt32(il2cppBytes, 0);
var il2CppMemory = new MemoryStream(il2cppBytes);
switch (il2cppMagic)
{
default:
throw new NotSupportedException("ERROR: il2cpp file not supported.");
case 0x6D736100:
var web = new WebAssembly(il2CppMemory);
il2Cpp = web.CreateMemory();
break;
case 0x304F534E:
var nso = new NSO(il2CppMemory);
il2Cpp = nso.UnCompress();
break;
case 0x905A4D: //PE
il2Cpp = new PE(il2CppMemory);
break;
case 0x464c457f: //ELF
if (il2cppBytes[4] == 2) //ELF64
{
il2Cpp = new Elf64(il2CppMemory);
}
else
{
il2Cpp = new Elf(il2CppMemory);
}
break;
case 0xCAFEBABE: //FAT Mach-O
case 0xBEBAFECA:
var machofat = new MachoFat(new MemoryStream(il2cppBytes));
Console.Write("Select Platform: ");
for (var i = 0; i < machofat.fats.Length; i++)
{
var fat = machofat.fats[i];
Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
}
Console.WriteLine();
var key = Console.ReadKey(true);
var index = int.Parse(key.KeyChar.ToString()) - 1;
var magic = machofat.fats[index % 2].magic;
il2cppBytes = machofat.GetMacho(index % 2);
il2CppMemory = new MemoryStream(il2cppBytes);
if (magic == 0xFEEDFACF)
{
goto case 0xFEEDFACF;
}
else
{
goto case 0xFEEDFACE;
}
case 0xFEEDFACF: // 64bit Mach-O
il2Cpp = new Macho64(il2CppMemory);
break;
case 0xFEEDFACE: // 32bit Mach-O
il2Cpp = new Macho(il2CppMemory);
break;
}
var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.Version;
il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
Console.WriteLine($"Il2Cpp Version: {il2Cpp.Version}");
if (il2Cpp.Version >= 27 && il2Cpp is ElfBase elf && elf.IsDumped)
{
Console.WriteLine("Input global-metadata.dat dump address:");
metadata.Address = Convert.ToUInt64(Console.ReadLine(), 16);
}
Console.WriteLine("Searching...");
try
{
var flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length, metadata.imageDefs.Length);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
if (!flag && il2Cpp is PE)
{
Console.WriteLine("Use custom PE loader");
il2Cpp = PELoader.Load(il2cppPath);
il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length, metadata.imageDefs.Length);
}
}
if (!flag)
{
flag = il2Cpp.Search();
}
if (!flag)
{
flag = il2Cpp.SymbolSearch();
}
if (!flag)
{
Console.WriteLine("ERROR: Can't use auto mode to process file, try manual mode.");
Console.Write("Input CodeRegistration: ");
var codeRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
Console.Write("Input MetadataRegistration: ");
var metadataRegistration = Convert.ToUInt64(Console.ReadLine(), 16);
il2Cpp.Init(codeRegistration, metadataRegistration);
return(true);
}
}
catch (Exception e)
{
Console.WriteLine(e);
Console.WriteLine("ERROR: An error occurred while processing.");
return(false);
}
return(true);
}
private bool Init(string il2cppPath, string metadataPath, out Metadata metadata, out Il2Cpp il2Cpp)
{
string Mach_O = "2";
Invoke(new Action(delegate()
{
if (!iOSSwitch.Value)
{
Mach_O = "1";
}
}));
LogOutput("Read config...");
if (File.Exists(RealPath + "config.json"))
{
config = JsonConvert.DeserializeObject <Config>(File.ReadAllText(Application.StartupPath + Path.DirectorySeparatorChar + @"config.json"));
}
else
{
config = new Config();
LogOutput("config.json file does not exist. Using defaults", Color.Yellow);
}
LogOutput("Initializing metadata...");
var metadataBytes = File.ReadAllBytes(metadataPath);
metadata = new Metadata(new MemoryStream(metadataBytes));
LogOutput($"Metadata Version: {metadata.Version}");
LogOutput("Initializing il2cpp file...");
var il2cppBytes = File.ReadAllBytes(il2cppPath);
var il2cppMagic = BitConverter.ToUInt32(il2cppBytes, 0);
var il2CppMemory = new MemoryStream(il2cppBytes);
switch (il2cppMagic)
{
default:
throw new NotSupportedException("ERROR: il2cpp file not supported.");
case 0x6D736100:
var web = new WebAssembly(il2CppMemory);
il2Cpp = web.CreateMemory();
break;
case 0x304F534E:
var nso = new NSO(il2CppMemory);
il2Cpp = nso.UnCompress();
break;
case 0x905A4D: //PE
il2Cpp = new PE(il2CppMemory);
break;
case 0x464c457f: //ELF
if (il2cppBytes[4] == 2) //ELF64
{
il2Cpp = new Elf64(il2CppMemory);
}
else
{
il2Cpp = new Elf(il2CppMemory);
}
break;
case 0xCAFEBABE: //FAT Mach-O
case 0xBEBAFECA:
var machofat = new MachoFat(new MemoryStream(il2cppBytes));
for (var i = 0; i < machofat.fats.Length; i++)
{
var fat = machofat.fats[i];
//Console.Write(fat.magic == 0xFEEDFACF ? $"{i + 1}.64bit " : $"{i + 1}.32bit ");
}
var index = int.Parse(Mach_O) - 1;
var magic = machofat.fats[index % 2].magic;
il2cppBytes = machofat.GetMacho(index % 2);
il2CppMemory = new MemoryStream(il2cppBytes);
if (magic == 0xFEEDFACF)
{
goto case 0xFEEDFACF;
}
else
{
goto case 0xFEEDFACE;
}
case 0xFEEDFACF: // 64bit Mach-O
il2Cpp = new Macho64(il2CppMemory);
break;
case 0xFEEDFACE: // 32bit Mach-O
il2Cpp = new Macho(il2CppMemory);
break;
}
var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.Version;
il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
LogOutput($"Il2Cpp Version: {il2Cpp.Version}");
LogOutput("Searching...");
try
{
var flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length);
if (!flag && il2Cpp is PE)
{
LogOutput("Use custom PE loader");
il2Cpp = PELoader.Load(il2cppPath);
il2Cpp.SetProperties(version, metadata.maxMetadataUsages);
flag = il2Cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length);
}
if (!flag)
{
flag = il2Cpp.Search();
}
if (!flag)
{
flag = il2Cpp.SymbolSearch();
}
if (!flag)
{
LogOutput("ERROR: Can't use auto mode to process file, input offset pointers to try manual mode.", Color.Yellow);
var codeRegistration = Convert.ToUInt64(CodeRegistrationTxtBox.Text, 16);
var metadataRegistration = Convert.ToUInt64(metadataRegistrationTxtBox.Text, 16);
il2Cpp.Init(codeRegistration, metadataRegistration);
return(true);
}
}
catch (Exception ex)
{
LogOutput("An error occurred while processing.", Color.Red);
#if DEBUG
LogOutput(ex.ToString());
#else
LogOutput(ex.Message);
#endif
return(false);
}
return(true);
}
