public void Decompile(Config config) { var writer = new StreamWriter(new FileStream("dump.cs", FileMode.Create), new UTF8Encoding(false)); //dump image for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { var imageDef = metadata.imageDefs[imageIndex]; writer.Write($"// Image {imageIndex}: {metadata.GetStringFromIndex(imageDef.nameIndex)} - {imageDef.typeStart}\n"); } //dump type for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { try { var imageDef = metadata.imageDefs[imageIndex]; var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int typeDefIndex = imageDef.typeStart; typeDefIndex < typeEnd; typeDefIndex++) { var typeDef = metadata.typeDefs[typeDefIndex]; var extends = new List <string>(); if (typeDef.parentIndex >= 0) { var parent = il2Cpp.types[typeDef.parentIndex]; var parentName = executor.GetTypeName(parent, false, false); if (!typeDef.IsValueType && !typeDef.IsEnum && parentName != "object") { extends.Add(parentName); } } if (typeDef.interfaces_count > 0) { for (int i = 0; i < typeDef.interfaces_count; i++) { var @interface = il2Cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]]; extends.Add(executor.GetTypeName(@interface, false, false)); } } writer.Write($"\n// Namespace: {metadata.GetStringFromIndex(typeDef.namespaceIndex)}\n"); if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token)); } 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 (!typeDef.IsValueType && !typeDef.IsEnum && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("sealed "); } if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0) { writer.Write("interface "); } else if (typeDef.IsEnum) { writer.Write("enum "); } else if (typeDef.IsValueType) { writer.Write("struct "); } else { writer.Write("class "); } var typeName = executor.GetTypeDefName(typeDef, false, true); writer.Write($"{typeName}"); if (extends.Count > 0) { writer.Write($" : {string.Join(", ", extends)}"); } if (config.DumpTypeDefIndex) { writer.Write($" // TypeDefIndex: {typeDefIndex}\n{{"); } else { writer.Write("\n{"); } //dump field if (config.DumpField && typeDef.field_count > 0) { writer.Write("\n\t// Fields\n"); var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2Cpp.types[fieldDef.typeIndex]; var isStatic = false; if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, "\t")); } writer.Write("\t"); var access = fieldType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK; switch (access) { case FIELD_ATTRIBUTE_PRIVATE: writer.Write("private "); break; case FIELD_ATTRIBUTE_PUBLIC: writer.Write("public "); break; case FIELD_ATTRIBUTE_FAMILY: writer.Write("protected "); break; case FIELD_ATTRIBUTE_ASSEMBLY: case FIELD_ATTRIBUTE_FAM_AND_ASSEM: writer.Write("internal "); break; case FIELD_ATTRIBUTE_FAM_OR_ASSEM: writer.Write("protected internal "); break; } if ((fieldType.attrs & FIELD_ATTRIBUTE_LITERAL) != 0) { writer.Write("const "); } else { if ((fieldType.attrs & FIELD_ATTRIBUTE_STATIC) != 0) { isStatic = true; writer.Write("static "); } if ((fieldType.attrs & FIELD_ATTRIBUTE_INIT_ONLY) != 0) { writer.Write("readonly "); } } writer.Write($"{executor.GetTypeName(fieldType, false, false)} {metadata.GetStringFromIndex(fieldDef.nameIndex)}"); if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefaultValue) && fieldDefaultValue.dataIndex != -1) { if (TryGetDefaultValue(fieldDefaultValue.typeIndex, fieldDefaultValue.dataIndex, out var value)) { writer.Write($" = "); if (value is string str) { writer.Write($"\"{str.ToEscapedString()}\""); } else if (value is char c) { var v = (int)c; writer.Write($"'\\x{v:x}'"); } else if (value != null) { writer.Write($"{value}"); } } else { writer.Write($" /*Metadata offset 0x{value:X}*/"); } } if (config.DumpFieldOffset) { writer.Write("; // 0x{0:X}\n", il2Cpp.GetFieldOffsetFromIndex(typeDefIndex, i - typeDef.fieldStart, i, typeDef.IsValueType, isStatic)); } else { writer.Write(";\n"); } } } //dump property if (config.DumpProperty && typeDef.property_count > 0) { writer.Write("\n\t// Properties\n"); var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, "\t")); } writer.Write("\t"); if (propertyDef.get >= 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.get]; writer.Write(GetModifiers(methodDef)); var propertyType = il2Cpp.types[methodDef.returnType]; writer.Write($"{executor.GetTypeName(propertyType, false, false)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } else if (propertyDef.set > 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set]; writer.Write(GetModifiers(methodDef)); var parameterDef = metadata.parameterDefs[methodDef.parameterStart]; var propertyType = il2Cpp.types[parameterDef.typeIndex]; writer.Write($"{executor.GetTypeName(propertyType, false, false)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } if (propertyDef.get >= 0) { writer.Write("get; "); } if (propertyDef.set >= 0) { writer.Write("set; "); } writer.Write("}"); writer.Write("\n"); } } //dump method if (config.DumpMethod && typeDef.method_count > 0) { writer.Write("\n\t// Methods\n"); var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, "\t")); } if (config.DumpMethodOffset) { var methodPointer = il2Cpp.GetMethodPointer(methodDef.methodIndex, i, imageIndex, methodDef.token); if (methodPointer > 0) { var fixedMethodPointer = il2Cpp.GetRVA(methodPointer); writer.Write("\t// RVA: 0x{0:X} Offset: 0x{1:X} VA: 0x{2:X}", fixedMethodPointer, il2Cpp.MapVATR(methodPointer), methodPointer); } else { writer.Write("\t// RVA: -1 Offset: -1"); } if (methodDef.slot != ushort.MaxValue) { writer.Write(" Slot: {0}", methodDef.slot); } writer.Write("\n"); } writer.Write("\t"); writer.Write(GetModifiers(methodDef)); var methodReturnType = il2Cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); if (methodReturnType.byref == 1) { writer.Write("ref "); } writer.Write($"{executor.GetTypeName(methodReturnType, false, false)} {methodName}("); var parameterStrs = new List <string>(); for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterStr = ""; var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2Cpp.types[parameterDef.typeIndex]; var parameterTypeName = executor.GetTypeName(parameterType, false, false); if (parameterType.byref == 1) { if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) == 0) { parameterStr += "out "; } else if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) == 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0) { parameterStr += "in "; } else { parameterStr += "ref "; } } else { if ((parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0) { parameterStr += "[In] "; } if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0) { parameterStr += "[Out] "; } } parameterStr += $"{parameterTypeName} {parameterName}"; if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1) { if (TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value)) { parameterStr += " = "; if (value is string str) { parameterStr += $"\"{str.ToEscapedString()}\""; } else if (value is char c) { var v = (int)c; parameterStr += $"'\\x{v:x}'"; } else if (value != null) { parameterStr += $"{value}"; } } else { parameterStr += $" /*Metadata offset 0x{value:X}*/"; } } parameterStrs.Add(parameterStr); } writer.Write(string.Join(", ", parameterStrs)); writer.Write(") { }\n"); } } writer.Write("}\n"); } } catch (Exception e) { Console.WriteLine("ERROR: Some errors in dumping"); writer.Write("/*"); writer.Write(e); writer.Write("*/\n}\n"); } } writer.Close(); }
public DummyAssemblyCreator(Metadata metadata, Il2Cpp il2cpp) { this.metadata = metadata; this.il2cpp = il2cpp; //创建程序集,同时创建所有类 foreach (var imageDef in metadata.imageDefs) { var assemblyName = new AssemblyNameDefinition(metadata.GetStringFromIndex(imageDef.nameIndex).Replace(".dll", ""), new Version("3.7.1.6")); var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyName, metadata.GetStringFromIndex(imageDef.nameIndex), ModuleKind.Dll); Assemblies.Add(assemblyDefinition); var moduleDefinition = assemblyDefinition.MainModule; moduleDefinition.Types.Clear();//清除自动创建的<Module>类 var typeEnd = imageDef.typeStart + imageDef.typeCount; for (var index = imageDef.typeStart; index < typeEnd; ++index) { var typeDef = metadata.typeDefs[index]; var namespaceName = metadata.GetStringFromIndex(typeDef.namespaceIndex); var typeName = metadata.GetStringFromIndex(typeDef.nameIndex); TypeDefinition typeDefinition; if (typeDef.declaringTypeIndex != -1)//nested types { typeDefinition = typeDefinitionDic[index]; } else { typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags); moduleDefinition.Types.Add(typeDefinition); typeDefinitionDic.Add(index, typeDefinition); } //nestedtype for (int i = 0; i < typeDef.nested_type_count; i++) { var nestedIndex = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i]; var nestedTypeDef = metadata.typeDefs[nestedIndex]; var nestedTypeDefinition = new TypeDefinition(metadata.GetStringFromIndex(nestedTypeDef.namespaceIndex), metadata.GetStringFromIndex(nestedTypeDef.nameIndex), (TypeAttributes)nestedTypeDef.flags); typeDefinition.NestedTypes.Add(nestedTypeDefinition); typeDefinitionDic.Add(nestedIndex, nestedTypeDefinition); } } } //先单独处理,因为不知道会不会有问题 for (var index = 0; index < metadata.uiNumTypes; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //parent if (typeDef.parentIndex >= 0) { var parentType = il2cpp.types[typeDef.parentIndex]; var parentTypeRef = GetTypeReference(typeDefinition, parentType); typeDefinition.BaseType = parentTypeRef; } //interfaces for (int i = 0; i < typeDef.interfaces_count; i++) { var interfaceType = il2cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]]; var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType); typeDefinition.Interfaces.Add(interfaceTypeRef); } } //处理field, method, property等等 for (var index = 0; index < metadata.uiNumTypes; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2cpp.types[fieldDef.typeIndex]; var fieldName = metadata.GetStringFromIndex(fieldDef.nameIndex); var fieldTypeRef = GetTypeReference(typeDefinition, fieldType); var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef); typeDefinition.Fields.Add(fieldDefinition); //fieldDefault if (fieldDefinition.HasDefault) { var fieldDefault = metadata.GetFieldDefaultValueFromIndex(i); if (fieldDefault != null && fieldDefault.dataIndex != -1) { fieldDefinition.Constant = GetDefaultValue(fieldDefault.dataIndex, fieldDefault.typeIndex); } } } //method var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; var methodReturnType = il2cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.Import(typeof(void))); typeDefinition.Methods.Add(methodDefinition); methodDefinition.ReturnType = GetTypeReference(methodDefinition, methodReturnType); if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate") { var ilprocessor = methodDefinition.Body.GetILProcessor(); ilprocessor.Append(ilprocessor.Create(OpCodes.Nop)); } methodDefinitionDic.Add(i, methodDefinition); //method parameter for (var j = 0; j < methodDef.parameterCount; ++j) { var pParam = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(pParam.nameIndex); var parameterType = il2cpp.types[pParam.typeIndex]; var parameterTypeRef = GetTypeReference(methodDefinition, parameterType); var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef); methodDefinition.Parameters.Add(parameterDefinition); //ParameterDefault if (parameterDefinition.HasDefault) { var parameterDefault = metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j); if (parameterDefault != null && parameterDefault.dataIndex != -1) { parameterDefinition.Constant = GetDefaultValue(parameterDefault.dataIndex, parameterDefault.typeIndex); } } } //补充泛型参数 if (methodDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex]; if (genericContainer.type_argc > methodDefinition.GenericParameters.Count) { for (int j = methodDefinition.GenericParameters.Count + 1; j <= genericContainer.type_argc; j++) { var genericParameter = new GenericParameter("T" + j, methodDefinition); methodDefinition.GenericParameters.Add(genericParameter); } } } } //property var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; var propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex); TypeReference propertyType = null; MethodDefinition GetMethod = null; MethodDefinition SetMethod = null; if (propertyDef.get >= 0) { GetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.get]; propertyType = GetMethod.ReturnType; } if (propertyDef.set >= 0) { SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set]; if (propertyType == null) { propertyType = SetMethod.Parameters[0].ParameterType; } } var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType) { GetMethod = GetMethod, SetMethod = SetMethod }; typeDefinition.Properties.Add(propertyDefinition); } //event var eventEnd = typeDef.eventStart + typeDef.event_count; for (var i = typeDef.eventStart; i < eventEnd; ++i) { var eventDef = metadata.eventDefs[i]; var eventName = metadata.GetStringFromIndex(eventDef.nameIndex); var eventType = il2cpp.types[eventDef.typeIndex]; var eventTypeRef = GetTypeReference(typeDefinition, eventType); var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef); if (eventDef.add >= 0) { eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add]; } if (eventDef.remove >= 0) { eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove]; } if (eventDef.raise >= 0) { eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise]; } typeDefinition.Events.Add(eventDefinition); } //补充泛型参数 if (typeDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex]; if (genericContainer.type_argc > typeDefinition.GenericParameters.Count) { for (int j = typeDefinition.GenericParameters.Count + 1; j <= genericContainer.type_argc; j++) { var genericParameter = new GenericParameter("T" + j, typeDefinition); typeDefinition.GenericParameters.Add(genericParameter); } } } } }
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 = "Il2Cpp binary 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..."); 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 isPE = false; var is64bit = false; switch (il2cppMagic) { default: throw new Exception("ERROR: il2cpp file not supported."); case 0x905A4D: //PE isPE = true; break; case 0x464c457f: //ELF isElf = true; if (il2cppfile[4] == 2) { goto case 0xFEEDFACF; //ELF64 } break; 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]; 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; il2cppfile = machofat.GetMacho(index % 2); if (magic == 0xFEEDFACF) // 64-bit mach object file { goto case 0xFEEDFACF; } else { goto case 0xFEEDFACE; } case 0xFEEDFACF: // 64-bit mach object file is64bit = true; break; case 0xFEEDFACE: // 32-bit mach object file break; } Console.WriteLine("Select Mode: 1.Manual 2.Auto 3.Auto(Advanced) 4.Auto(Plus) 5.Auto(Symbol)"); var modeKey = Console.ReadKey(true); var version = config.ForceIl2CppVersion ? config.ForceVersion : metadata.version; Console.WriteLine("Initializing il2cpp file..."); if (isPE) { il2cpp = new PE(new MemoryStream(il2cppfile), version, metadata.maxMetadataUsages); } else if (isElf) { if (is64bit) { il2cpp = new Elf64(new MemoryStream(il2cppfile), version, metadata.maxMetadataUsages); } else { 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 { bool flag; switch (modeKey.KeyChar) { 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(Advanced) flag = il2cpp.AdvancedSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0)); break; case '4': //Auto(Plus) flag = il2cpp.PlusSearch(metadata.methodDefs.Count(x => x.methodIndex >= 0), metadata.typeDefs.Length); break; case '5': //Auto(Symbol) flag = il2cpp.SymbolSearch(); break; default: return; } if (!flag) { throw new Exception(); } } catch { throw new Exception("ERROR: Can't use this mode to process file, try another mode."); } 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($"\n// Namespace: {metadata.GetStringFromIndex(typeDef.namespaceIndex)}\n"); writer.Write(GetCustomAttribute(typeDef.customAttributeIndex)); if (config.DumpAttribute && (typeDef.flags & TYPE_ATTRIBUTE_SERIALIZABLE) != 0) { writer.Write("[Serializable]\n"); } var visibility = typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK; switch (visibility) { case TYPE_ATTRIBUTE_PUBLIC: case TYPE_ATTRIBUTE_NESTED_PUBLIC: writer.Write("public "); break; case TYPE_ATTRIBUTE_NOT_PUBLIC: case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM: case TYPE_ATTRIBUTE_NESTED_ASSEMBLY: writer.Write("internal "); break; case TYPE_ATTRIBUTE_NESTED_PRIVATE: writer.Write("private "); break; case TYPE_ATTRIBUTE_NESTED_FAMILY: writer.Write("protected "); break; case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM: writer.Write("protected internal "); break; } if ((typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0 && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("static "); } else if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) == 0 && (typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0) { writer.Write("abstract "); } else if (!isStruct && !isEnum && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("sealed "); } if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0) { writer.Write("interface "); } else if (isStruct) { writer.Write("struct "); } else if (isEnum) { writer.Write("enum "); } else { writer.Write("class "); } var typeName = metadata.GetStringFromIndex(typeDef.nameIndex); writer.Write($"{typeName}"); if (extends.Count > 0) { writer.Write($" : {string.Join(", ", extends)}"); } if (config.DumpTypeDefIndex) { writer.Write($" // TypeDefIndex: {idx}\n{{\n"); } else { writer.Write("\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($"{GetTypeName(fieldType)} {metadata.GetStringFromIndex(fieldDef.nameIndex)}"); if (fieldDefault != null && fieldDefault.dataIndex != -1) { var pointer = metadata.GetDefaultValueFromIndex(fieldDefault.dataIndex); if (pointer > 0) { var pTypeToUse = il2cpp.types[fieldDefault.typeIndex]; metadata.Position = pointer; object multi = null; switch (pTypeToUse.type) { case Il2CppTypeEnum.IL2CPP_TYPE_BOOLEAN: multi = metadata.ReadBoolean(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U1: multi = metadata.ReadByte(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I1: multi = metadata.ReadSByte(); break; case Il2CppTypeEnum.IL2CPP_TYPE_CHAR: multi = BitConverter.ToChar(metadata.ReadBytes(2), 0); break; case Il2CppTypeEnum.IL2CPP_TYPE_U2: multi = metadata.ReadUInt16(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I2: multi = metadata.ReadInt16(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U4: multi = metadata.ReadUInt32(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I4: multi = metadata.ReadInt32(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U8: multi = metadata.ReadUInt64(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I8: multi = metadata.ReadInt64(); break; case Il2CppTypeEnum.IL2CPP_TYPE_R4: multi = metadata.ReadSingle(); break; case Il2CppTypeEnum.IL2CPP_TYPE_R8: multi = metadata.ReadDouble(); break; case Il2CppTypeEnum.IL2CPP_TYPE_STRING: var uiLen = metadata.ReadInt32(); multi = Encoding.UTF8.GetString(metadata.ReadBytes(uiLen)); break; } if (multi is string str) { writer.Write($" = \"{ToEscapedString(str)}\""); } else if (multi is char c) { var v = (int)c; writer.Write($" = '\\x{v:x}'"); } else if (multi != null) { writer.Write($" = {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 propertyType = il2cpp.types[methodDef.returnType]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } else if (propertyDef.set > 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set]; writer.Write(GetModifiers(methodDef)); var parameterDef = metadata.parameterDefs[methodDef.parameterStart]; var propertyType = il2cpp.types[parameterDef.typeIndex]; writer.Write($"{GetTypeName(propertyType)} {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 methodReturnType = il2cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); writer.Write($"{GetTypeName(methodReturnType)} {methodName}("); var parameterStrs = new List <string>(); for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterStr = ""; var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2cpp.types[parameterDef.typeIndex]; var parameterTypeName = GetTypeName(parameterType); if ((parameterType.attrs & PARAM_ATTRIBUTE_OPTIONAL) != 0) { parameterStr += "optional "; } if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0) { parameterStr += "out "; } parameterStr += $"{parameterTypeName} {parameterName}"; parameterStrs.Add(parameterStr); } writer.Write(string.Join(", ", parameterStrs)); if (config.DumpMethodOffset) { ulong methodPointer; if (methodDef.methodIndex >= 0) { methodPointer = il2cpp.methodPointers[methodDef.methodIndex]; } else { il2cpp.genericMethoddDictionary.TryGetValue(i, out methodPointer); } if (methodPointer > 0) { writer.Write("); // RVA: 0x{0:X} Offset: 0x{1:X}\n", methodPointer, il2cpp.MapVATR(methodPointer)); //Script - method var name = ToEscapedString(HandleSpecialCharacters(typeName + "$$" + methodName)); scriptwriter.WriteLine($"SetMethod(0x{methodPointer:X}, '{name}')"); } else { writer.Write("); // -1\n"); } } else { writer.Write("); \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 scriptwriter.WriteLine("print('Make method name done')"); scriptwriter.WriteLine("print('Setting String...')"); if (il2cpp.version > 16) { foreach (var i in metadata.stringLiteralsdic) { scriptwriter.WriteLine($"SetString(0x{il2cpp.metadataUsages[i.Key]:X}, r'{ToEscapedString(i.Value)}')"); } } scriptwriter.WriteLine("print('Set string done')"); //Script - MakeFunction if (config.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(); scriptwriter.WriteLine("print('Making function...')"); for (int i = 0; i < orderedPointers.Count - 1; i++) { scriptwriter.WriteLine($"MakeFunction(0x{orderedPointers[i]:X}, 0x{orderedPointers[i + 1]:X})"); } scriptwriter.WriteLine("print('Make function done, please wait for IDA to complete the analysis')"); } scriptwriter.WriteLine("print('Script finish !')"); //writer close writer.Close(); scriptwriter.Close(); Console.WriteLine("Done !"); //DummyDll if (config.DummyDll) { Console.WriteLine("Create DummyDll..."); if (Directory.Exists("DummyDll")) { Directory.Delete("DummyDll", true); } Directory.CreateDirectory("DummyDll"); Directory.SetCurrentDirectory("DummyDll"); File.WriteAllBytes("Il2CppDummyDll.dll", Resource1.Il2CppDummyDll); 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 !"); } } catch (Exception e) { Console.WriteLine(e); } Console.WriteLine("Press any key to exit..."); Console.ReadKey(true); } } }
public DummyAssemblyGenerator(Metadata metadata, Il2Cpp il2Cpp) { this.metadata = metadata; this.il2Cpp = il2Cpp; //Il2CppDummyDll var il2CppDummyDll = Il2CppDummyDll.Create(); Assemblies.Add(il2CppDummyDll); var addressAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AddressAttribute").Methods[0]; var fieldOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "FieldOffsetAttribute").Methods[0]; attributeAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AttributeAttribute").Methods[0]; var metadataOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "MetadataOffsetAttribute").Methods[0]; stringType = il2CppDummyDll.MainModule.TypeSystem.String; var resolver = new MyAssemblyResolver(); var moduleParameters = new ModuleParameters { Kind = ModuleKind.Dll, AssemblyResolver = resolver }; resolver.Register(il2CppDummyDll); var fieldDefinitionDic = new Dictionary <int, FieldDefinition>(); var methodDefinitionDic = new Dictionary <int, MethodDefinition>(); var parameterDefinitionDic = new Dictionary <int, ParameterDefinition>(); var propertyDefinitionDic = new Dictionary <int, PropertyDefinition>(); var eventDefinitionDic = new Dictionary <int, EventDefinition>(); //创建程序集,同时创建所有类 foreach (var imageDef in metadata.imageDefs) { var imageName = metadata.GetStringFromIndex(imageDef.nameIndex); var assemblyName = new AssemblyNameDefinition(imageName.Replace(".dll", ""), new Version("3.7.1.6")); var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyName, imageName, moduleParameters); resolver.Register(assemblyDefinition); Assemblies.Add(assemblyDefinition); var moduleDefinition = assemblyDefinition.MainModule; moduleDefinition.Types.Clear();//清除自动创建的<Module>类 var typeEnd = imageDef.typeStart + imageDef.typeCount; for (var index = imageDef.typeStart; index < typeEnd; ++index) { var typeDef = metadata.typeDefs[index]; var namespaceName = metadata.GetStringFromIndex(typeDef.namespaceIndex); var typeName = metadata.GetStringFromIndex(typeDef.nameIndex); TypeDefinition typeDefinition; if (typeDef.declaringTypeIndex != -1)//nested types { typeDefinition = typeDefinitionDic[index]; } else { typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags); moduleDefinition.Types.Add(typeDefinition); typeDefinitionDic.Add(index, typeDefinition); } //nestedtype for (int i = 0; i < typeDef.nested_type_count; i++) { var nestedIndex = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i]; var nestedTypeDef = metadata.typeDefs[nestedIndex]; var nestedTypeDefinition = new TypeDefinition(metadata.GetStringFromIndex(nestedTypeDef.namespaceIndex), metadata.GetStringFromIndex(nestedTypeDef.nameIndex), (TypeAttributes)nestedTypeDef.flags); typeDefinition.NestedTypes.Add(nestedTypeDefinition); typeDefinitionDic.Add(nestedIndex, nestedTypeDefinition); } } } //先单独处理,因为不知道会不会有问题 for (var index = 0; index < metadata.typeDefs.Length; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //parent if (typeDef.parentIndex >= 0) { var parentType = il2Cpp.types[typeDef.parentIndex]; var parentTypeRef = GetTypeReference(typeDefinition, parentType); typeDefinition.BaseType = parentTypeRef; } //interfaces for (int i = 0; i < typeDef.interfaces_count; i++) { var interfaceType = il2Cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]]; var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType); typeDefinition.Interfaces.Add(new InterfaceImplementation(interfaceTypeRef)); } } //处理field, method, property等等 for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { var imageDef = metadata.imageDefs[imageIndex]; var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int index = imageDef.typeStart; index < typeEnd; index++) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2Cpp.types[fieldDef.typeIndex]; var fieldName = metadata.GetStringFromIndex(fieldDef.nameIndex); var fieldTypeRef = GetTypeReference(typeDefinition, fieldType); var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef); typeDefinition.Fields.Add(fieldDefinition); fieldDefinitionDic.Add(i, fieldDefinition); //fieldDefault if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefault) && fieldDefault.dataIndex != -1) { if (TryGetDefaultValue(fieldDefault.typeIndex, fieldDefault.dataIndex, out var value)) { fieldDefinition.Constant = value; } else { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}")); customAttribute.Fields.Add(offset); fieldDefinition.CustomAttributes.Add(customAttribute); } } //fieldOffset if (!fieldDefinition.IsLiteral) { var fieldOffset = il2Cpp.GetFieldOffsetFromIndex(index, i - typeDef.fieldStart, i, typeDefinition.IsValueType, fieldDefinition.IsStatic); if (fieldOffset >= 0) { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(fieldOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{fieldOffset:X}")); customAttribute.Fields.Add(offset); fieldDefinition.CustomAttributes.Add(customAttribute); } } } //method var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.ImportReference(typeof(void))); methodDefinition.ImplAttributes = (MethodImplAttributes)methodDef.iflags; typeDefinition.Methods.Add(methodDefinition); var methodReturnType = il2Cpp.types[methodDef.returnType]; var returnType = GetTypeReferenceWithByRef(methodDefinition, methodReturnType); methodDefinition.ReturnType = returnType; if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate") { var ilprocessor = methodDefinition.Body.GetILProcessor(); if (returnType.FullName == "System.Void") { ilprocessor.Append(ilprocessor.Create(OpCodes.Ret)); } else if (returnType.IsValueType) { var variable = new VariableDefinition(returnType); methodDefinition.Body.Variables.Add(variable); ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloca_S, variable)); ilprocessor.Append(ilprocessor.Create(OpCodes.Initobj, returnType)); ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloc_0)); ilprocessor.Append(ilprocessor.Create(OpCodes.Ret)); } else { ilprocessor.Append(ilprocessor.Create(OpCodes.Ldnull)); ilprocessor.Append(ilprocessor.Create(OpCodes.Ret)); } } methodDefinitionDic.Add(i, methodDefinition); //method parameter for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2Cpp.types[parameterDef.typeIndex]; var parameterTypeRef = GetTypeReferenceWithByRef(methodDefinition, parameterType); var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef); methodDefinition.Parameters.Add(parameterDefinition); parameterDefinitionDic.Add(methodDef.parameterStart + j, parameterDefinition); //ParameterDefault if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1) { if (TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value)) { parameterDefinition.Constant = value; } else { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}")); customAttribute.Fields.Add(offset); parameterDefinition.CustomAttributes.Add(customAttribute); } } } //补充泛型参数 if (methodDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex]; if (genericContainer.type_argc > methodDefinition.GenericParameters.Count) { for (int j = 0; j < genericContainer.type_argc; j++) { var genericParameterIndex = genericContainer.genericParameterStart + j; if (!genericParameterDic.TryGetValue(genericParameterIndex, out var genericParameter)) { CreateGenericParameter(genericParameterIndex, methodDefinition); } else { if (!methodDefinition.GenericParameters.Contains(genericParameter)) { methodDefinition.GenericParameters.Add(genericParameter); } } } } } //methodAddress var methodPointer = il2Cpp.GetMethodPointer(methodDef, imageIndex); if (methodPointer > 0) { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(addressAttribute)); var fixedMethodPointer = il2Cpp.GetRVA(methodPointer); var rva = new CustomAttributeNamedArgument("RVA", new CustomAttributeArgument(stringType, $"0x{fixedMethodPointer:X}")); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{il2Cpp.MapVATR(methodPointer):X}")); var va = new CustomAttributeNamedArgument("VA", new CustomAttributeArgument(stringType, $"0x{methodPointer:X}")); customAttribute.Fields.Add(rva); customAttribute.Fields.Add(offset); customAttribute.Fields.Add(va); if (methodDef.slot != ushort.MaxValue) { var slot = new CustomAttributeNamedArgument("Slot", new CustomAttributeArgument(stringType, methodDef.slot.ToString())); customAttribute.Fields.Add(slot); } methodDefinition.CustomAttributes.Add(customAttribute); } } //property var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; var propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex); TypeReference propertyType = null; MethodDefinition GetMethod = null; MethodDefinition SetMethod = null; if (propertyDef.get >= 0) { GetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.get]; propertyType = GetMethod.ReturnType; } if (propertyDef.set >= 0) { SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set]; if (propertyType == null) { propertyType = SetMethod.Parameters[0].ParameterType; } } var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType) { GetMethod = GetMethod, SetMethod = SetMethod }; typeDefinition.Properties.Add(propertyDefinition); propertyDefinitionDic.Add(i, propertyDefinition); } //event var eventEnd = typeDef.eventStart + typeDef.event_count; for (var i = typeDef.eventStart; i < eventEnd; ++i) { var eventDef = metadata.eventDefs[i]; var eventName = metadata.GetStringFromIndex(eventDef.nameIndex); var eventType = il2Cpp.types[eventDef.typeIndex]; var eventTypeRef = GetTypeReference(typeDefinition, eventType); var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef); if (eventDef.add >= 0) { eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add]; } if (eventDef.remove >= 0) { eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove]; } if (eventDef.raise >= 0) { eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise]; } typeDefinition.Events.Add(eventDefinition); eventDefinitionDic.Add(i, eventDefinition); } //补充泛型参数 if (typeDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex]; if (genericContainer.type_argc > typeDefinition.GenericParameters.Count) { for (int i = 0; i < genericContainer.type_argc; i++) { var genericParameterIndex = genericContainer.genericParameterStart + i; if (!genericParameterDic.TryGetValue(genericParameterIndex, out var genericParameter)) { CreateGenericParameter(genericParameterIndex, typeDefinition); } else { if (!typeDefinition.GenericParameters.Contains(genericParameter)) { typeDefinition.GenericParameters.Add(genericParameter); } } } } } } } //第三遍,添加CustomAttribute if (il2Cpp.Version > 20) { PrepareCustomAttribute(); foreach (var imageDef in metadata.imageDefs) { var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int index = imageDef.typeStart; index < typeEnd; index++) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //typeAttribute CreateCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token, typeDefinition.Module, typeDefinition.CustomAttributes); //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldDefinition = fieldDefinitionDic[i]; //fieldAttribute CreateCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, typeDefinition.Module, fieldDefinition.CustomAttributes); } //method var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; var methodDefinition = methodDefinitionDic[i]; //methodAttribute CreateCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, typeDefinition.Module, methodDefinition.CustomAttributes); //method parameter for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterDefinition = parameterDefinitionDic[methodDef.parameterStart + j]; //parameterAttribute CreateCustomAttribute(imageDef, parameterDef.customAttributeIndex, parameterDef.token, typeDefinition.Module, parameterDefinition.CustomAttributes); } } //property var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; var propertyDefinition = propertyDefinitionDic[i]; //propertyAttribute CreateCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, typeDefinition.Module, propertyDefinition.CustomAttributes); } //event var eventEnd = typeDef.eventStart + typeDef.event_count; for (var i = typeDef.eventStart; i < eventEnd; ++i) { var eventDef = metadata.eventDefs[i]; var eventDefinition = eventDefinitionDic[i]; //eventAttribute CreateCustomAttribute(imageDef, eventDef.customAttributeIndex, eventDef.token, typeDefinition.Module, eventDefinition.CustomAttributes); } } } } }
public DummyAssemblyCreator(Metadata metadata, Il2Cpp il2cpp) { this.metadata = metadata; this.il2cpp = il2cpp; //Il2CppDummyDll var il2CppDummyDll = AssemblyDefinition.ReadAssembly(new MemoryStream(Resource1.Il2CppDummyDll)); var addressAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AddressAttribute").Methods.First(); var fieldOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "FieldOffsetAttribute").Methods.First(); var stringType = il2CppDummyDll.MainModule.TypeSystem.String; var resolver = new MyAssemblyResolver(); var moduleParameters = new ModuleParameters { Kind = ModuleKind.Dll, AssemblyResolver = resolver }; //创建程序集,同时创建所有类 foreach (var imageDef in metadata.imageDefs) { var assemblyName = new AssemblyNameDefinition(metadata.GetStringFromIndex(imageDef.nameIndex).Replace(".dll", ""), new Version("3.7.1.6")); var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyName, metadata.GetStringFromIndex(imageDef.nameIndex), moduleParameters); resolver.Register(assemblyDefinition); Assemblies.Add(assemblyDefinition); var moduleDefinition = assemblyDefinition.MainModule; moduleDefinition.Types.Clear();//清除自动创建的<Module>类 var typeEnd = imageDef.typeStart + imageDef.typeCount; for (var index = imageDef.typeStart; index < typeEnd; ++index) { var typeDef = metadata.typeDefs[index]; var namespaceName = metadata.GetStringFromIndex(typeDef.namespaceIndex); var typeName = metadata.GetStringFromIndex(typeDef.nameIndex); TypeDefinition typeDefinition; if (typeDef.declaringTypeIndex != -1)//nested types { typeDefinition = typeDefinitionDic[index]; } else { typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags); moduleDefinition.Types.Add(typeDefinition); typeDefinitionDic.Add(index, typeDefinition); } //nestedtype for (int i = 0; i < typeDef.nested_type_count; i++) { var nestedIndex = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i]; var nestedTypeDef = metadata.typeDefs[nestedIndex]; var nestedTypeDefinition = new TypeDefinition(metadata.GetStringFromIndex(nestedTypeDef.namespaceIndex), metadata.GetStringFromIndex(nestedTypeDef.nameIndex), (TypeAttributes)nestedTypeDef.flags); typeDefinition.NestedTypes.Add(nestedTypeDefinition); typeDefinitionDic.Add(nestedIndex, nestedTypeDefinition); } } } //先单独处理,因为不知道会不会有问题 for (var index = 0; index < metadata.uiNumTypes; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //parent if (typeDef.parentIndex >= 0) { var parentType = il2cpp.types[typeDef.parentIndex]; var parentTypeRef = GetTypeReference(typeDefinition, parentType); typeDefinition.BaseType = parentTypeRef; } //interfaces for (int i = 0; i < typeDef.interfaces_count; i++) { var interfaceType = il2cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]]; var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType); typeDefinition.Interfaces.Add(interfaceTypeRef); } } //处理field, method, property等等 for (var index = 0; index < metadata.uiNumTypes; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2cpp.types[fieldDef.typeIndex]; var fieldName = metadata.GetStringFromIndex(fieldDef.nameIndex); var fieldTypeRef = GetTypeReference(typeDefinition, fieldType); var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef); typeDefinition.Fields.Add(fieldDefinition); //fieldDefault if (fieldDefinition.HasDefault) { var fieldDefault = metadata.GetFieldDefaultValueFromIndex(i); if (fieldDefault != null && fieldDefault.dataIndex != -1) { fieldDefinition.Constant = GetDefaultValue(fieldDefault.dataIndex, fieldDefault.typeIndex); } } //fieldOffset var fieldOffset = il2cpp.GetFieldOffsetFromIndex(index, i - typeDef.fieldStart, i); if (fieldOffset > 0) { var customAttribute = new CustomAttribute(typeDefinition.Module.Import(fieldOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{fieldOffset:X}")); customAttribute.Fields.Add(offset); fieldDefinition.CustomAttributes.Add(customAttribute); } } //method var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; var methodReturnType = il2cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.Import(typeof(void))); typeDefinition.Methods.Add(methodDefinition); methodDefinition.ReturnType = GetTypeReference(methodDefinition, methodReturnType); if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate") { var ilprocessor = methodDefinition.Body.GetILProcessor(); ilprocessor.Append(ilprocessor.Create(OpCodes.Nop)); } methodDefinitionDic.Add(i, methodDefinition); //method parameter for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2cpp.types[parameterDef.typeIndex]; var parameterTypeRef = GetTypeReference(methodDefinition, parameterType); var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef); methodDefinition.Parameters.Add(parameterDefinition); //ParameterDefault if (parameterDefinition.HasDefault) { var parameterDefault = metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j); if (parameterDefault != null && parameterDefault.dataIndex != -1) { parameterDefinition.Constant = GetDefaultValue(parameterDefault.dataIndex, parameterDefault.typeIndex); } } } //补充泛型参数 if (methodDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex]; if (genericContainer.type_argc > methodDefinition.GenericParameters.Count) { for (int j = methodDefinition.GenericParameters.Count + 1; j <= genericContainer.type_argc; j++) { var genericParameter = new GenericParameter("T" + j, methodDefinition); methodDefinition.GenericParameters.Add(genericParameter); } } } //address ulong methodPointer; if (methodDef.methodIndex >= 0) { methodPointer = il2cpp.methodPointers[methodDef.methodIndex]; } else { il2cpp.genericMethoddDictionary.TryGetValue(i, out methodPointer); } if (methodPointer > 0) { var customAttribute = new CustomAttribute(typeDefinition.Module.Import(addressAttribute)); var rva = new CustomAttributeNamedArgument("RVA", new CustomAttributeArgument(stringType, $"0x{methodPointer:X}")); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{il2cpp.MapVATR(methodPointer):X}")); customAttribute.Fields.Add(rva); customAttribute.Fields.Add(offset); methodDefinition.CustomAttributes.Add(customAttribute); } } //property var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; var propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex); TypeReference propertyType = null; MethodDefinition GetMethod = null; MethodDefinition SetMethod = null; if (propertyDef.get >= 0) { GetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.get]; propertyType = GetMethod.ReturnType; } if (propertyDef.set >= 0) { SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set]; if (propertyType == null) { propertyType = SetMethod.Parameters[0].ParameterType; } } var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType) { GetMethod = GetMethod, SetMethod = SetMethod }; typeDefinition.Properties.Add(propertyDefinition); } //event var eventEnd = typeDef.eventStart + typeDef.event_count; for (var i = typeDef.eventStart; i < eventEnd; ++i) { var eventDef = metadata.eventDefs[i]; var eventName = metadata.GetStringFromIndex(eventDef.nameIndex); var eventType = il2cpp.types[eventDef.typeIndex]; var eventTypeRef = GetTypeReference(typeDefinition, eventType); var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef); if (eventDef.add >= 0) { eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add]; } if (eventDef.remove >= 0) { eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove]; } if (eventDef.raise >= 0) { eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise]; } typeDefinition.Events.Add(eventDefinition); } //补充泛型参数 if (typeDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex]; if (genericContainer.type_argc > typeDefinition.GenericParameters.Count) { for (int j = typeDefinition.GenericParameters.Count + 1; j <= genericContainer.type_argc; j++) { var genericParameter = new GenericParameter("T" + j, typeDefinition); typeDefinition.GenericParameters.Add(genericParameter); } } } } //第三遍,添加CustomAttribute。只添加SerializeField用于MonoBehaviour的反序列化 if (il2cpp.version > 20) { var engine = Assemblies.Find(x => x.MainModule.Types.Any(t => t.Namespace == "UnityEngine" && t.Name == "SerializeField")); var serializeField = engine.MainModule.Types.First(x => x.Name == "SerializeField").Methods.First(); foreach (var imageDef in metadata.imageDefs) { var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int index = imageDef.typeStart; index < typeEnd; index++) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[index]; //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldName = metadata.GetStringFromIndex(fieldDef.nameIndex); var fieldDefinition = typeDefinition.Fields.First(x => x.Name == fieldName); //fieldAttribute var attributeIndex = metadata.GetCustomAttributeIndex(imageDef, fieldDef.customAttributeIndex, fieldDef.token); if (attributeIndex >= 0) { var attributeTypeRange = metadata.attributeTypeRanges[attributeIndex]; for (int j = 0; j < attributeTypeRange.count; j++) { var attributeTypeIndex = metadata.attributeTypes[attributeTypeRange.start + j]; var attributeType = il2cpp.types[attributeTypeIndex]; if (attributeType.type == Il2CppTypeEnum.IL2CPP_TYPE_CLASS) { var klass = metadata.typeDefs[attributeType.data.klassIndex]; var attributeName = metadata.GetStringFromIndex(klass.nameIndex); if (attributeName == "SerializeField") { var customAttribute = new CustomAttribute(typeDefinition.Module.Import(serializeField)); fieldDefinition.CustomAttributes.Add(customAttribute); } } } } } } } } }
private static void Dump() { 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 foreach (var imageDef in metadata.imageDefs) { try { var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int idx = imageDef.typeStart; idx < typeEnd; idx++) { 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(imageDef, typeDef.customAttributeIndex, typeDef.token)); 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 "); } var typeName = metadata.GetStringFromIndex(typeDef.nameIndex); writer.Write($"{typeName}"); if (extends.Count > 0) { writer.Write($" : {string.Join(", ", extends)}"); } if (config.DumpTypeDefIndex) { writer.Write($" // TypeDefIndex: {idx}\n{{"); } else { writer.Write("\n{"); } //dump field if (config.DumpField && typeDef.field_count > 0) { writer.Write("\n\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(imageDef, fieldDef.customAttributeIndex, fieldDef.token, "\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 str) { writer.Write($" = \"{ToEscapedString(str)}\""); } else if (multi is char c) { var v = (int)c; writer.Write($" = '\\x{v: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"); } } } //dump property if (config.DumpProperty && typeDef.property_count > 0) { writer.Write("\n\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(imageDef, propertyDef.customAttributeIndex, propertyDef.token, "\t")); writer.Write("\t"); if (propertyDef.get >= 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.get]; writer.Write(GetModifiers(methodDef)); var propertyType = il2cpp.types[methodDef.returnType]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } else if (propertyDef.set > 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set]; writer.Write(GetModifiers(methodDef)); var parameterDef = metadata.parameterDefs[methodDef.parameterStart]; var propertyType = il2cpp.types[parameterDef.typeIndex]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } if (propertyDef.get >= 0) { writer.Write("get; "); } if (propertyDef.set >= 0) { writer.Write("set; "); } writer.Write("}"); writer.Write("\n"); } } //dump method if (config.DumpMethod && typeDef.method_count > 0) { writer.Write("\n\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(imageDef, methodDef.customAttributeIndex, methodDef.token, "\t")); writer.Write("\t"); writer.Write(GetModifiers(methodDef)); var methodReturnType = il2cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); writer.Write($"{GetTypeName(methodReturnType)} {methodName}("); var parameterStrs = new List <string>(); for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterStr = ""; var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2cpp.types[parameterDef.typeIndex]; var parameterTypeName = GetTypeName(parameterType); if ((parameterType.attrs & PARAM_ATTRIBUTE_OPTIONAL) != 0) { parameterStr += "optional "; } if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0) { parameterStr += "out "; } parameterStr += $"{parameterTypeName} {parameterName}"; parameterStrs.Add(parameterStr); } writer.Write(string.Join(", ", parameterStrs)); if (config.DumpMethodOffset) { ulong methodPointer; if (methodDef.methodIndex >= 0) { methodPointer = il2cpp.methodPointers[methodDef.methodIndex]; } else { il2cpp.genericMethoddDictionary.TryGetValue(i, out methodPointer); } if (methodPointer > 0) { writer.Write("); // RVA: 0x{0:X} Offset: 0x{1:X}\n", methodPointer, il2cpp.MapVATR(methodPointer)); //Script - method var name = ToEscapedString(HandleSpecialCharacters(typeName + "$$" + methodName)); scriptwriter.WriteLine($"SetMethod(0x{methodPointer:X}, '{name}')"); } else { writer.Write("); // -1\n"); } } else { writer.Write("); \n"); } } } writer.Write("}\n"); } } catch (Exception e) { Console.WriteLine("ERROR: Some errors in dumping"); writer.Write("/*"); writer.Write(e); writer.Write("*/\n}\n"); } } //Script - stringLiteral scriptwriter.WriteLine("print('Make method name done')"); scriptwriter.WriteLine("print('Setting String...')"); if (il2cpp.version > 16) { foreach (var i in metadata.stringLiteralsdic) { scriptwriter.WriteLine($"SetString(0x{il2cpp.metadataUsages[i.Key]:X}, r'{ToEscapedString(i.Value)}')"); } } scriptwriter.WriteLine("print('Set string done')"); //Script - MakeFunction if (config.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(); scriptwriter.WriteLine("print('Making function...')"); for (int i = 0; i < orderedPointers.Count - 1; i++) { scriptwriter.WriteLine($"MakeFunction(0x{orderedPointers[i]:X}, 0x{orderedPointers[i + 1]:X})"); } scriptwriter.WriteLine("print('Make function done, please wait for IDA to complete the analysis')"); } scriptwriter.WriteLine("print('Script finish !')"); //writer close writer.Close(); scriptwriter.Close(); Console.WriteLine("Done !"); //DummyDll if (config.DummyDll) { Console.WriteLine("Create DummyDll..."); if (Directory.Exists("DummyDll")) { Directory.Delete("DummyDll", true); } Directory.CreateDirectory("DummyDll"); Directory.SetCurrentDirectory("DummyDll"); File.WriteAllBytes("Il2CppDummyDll.dll", Resource1.Il2CppDummyDll); var dummy = new DummyAssemblyCreator(metadata, il2cpp); foreach (var assembly in dummy.Assemblies) { var stream = new MemoryStream(); assembly.Write(stream); File.WriteAllBytes(assembly.MainModule.Name, stream.ToArray()); } Console.WriteLine("Done !"); } }
private static void Dump() { var writer = new StreamWriter(new FileStream("dump.cs", FileMode.Create), new UTF8Encoding(false)); Console.WriteLine("Dumping..."); //Script var scriptwriter = CreateScriptWriter(); //dump image for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { var imageDef = metadata.imageDefs[imageIndex]; writer.Write($"// Image {imageIndex}: {metadata.GetStringFromIndex(imageDef.nameIndex)} - {imageDef.typeStart}\n"); } //dump type for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { try { var imageDef = metadata.imageDefs[imageIndex]; var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int idx = imageDef.typeStart; idx < typeEnd; idx++) { var typeDef = metadata.typeDefs[idx]; typeDefImageIndices.Add(typeDef, imageIndex); 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($"\n// Namespace: {metadata.GetStringFromIndex(typeDef.namespaceIndex)}\n"); writer.Write(GetCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token)); if (config.DumpAttribute && (typeDef.flags & TYPE_ATTRIBUTE_SERIALIZABLE) != 0) { writer.Write("[Serializable]\n"); } var visibility = typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK; switch (visibility) { case TYPE_ATTRIBUTE_PUBLIC: case TYPE_ATTRIBUTE_NESTED_PUBLIC: writer.Write("public "); break; case TYPE_ATTRIBUTE_NOT_PUBLIC: case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM: case TYPE_ATTRIBUTE_NESTED_ASSEMBLY: writer.Write("internal "); break; case TYPE_ATTRIBUTE_NESTED_PRIVATE: writer.Write("private "); break; case TYPE_ATTRIBUTE_NESTED_FAMILY: writer.Write("protected "); break; case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM: writer.Write("protected internal "); break; } if ((typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0 && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("static "); } else if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) == 0 && (typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0) { writer.Write("abstract "); } else if (!isStruct && !isEnum && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("sealed "); } if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0) { writer.Write("interface "); } else if (isStruct) { writer.Write("struct "); } else if (isEnum) { writer.Write("enum "); } else { writer.Write("class "); } var typeName = GetTypeName(typeDef); writer.Write($"{typeName}"); if (extends.Count > 0) { writer.Write($" : {string.Join(", ", extends)}"); } if (config.DumpTypeDefIndex) { writer.Write($" // TypeDefIndex: {idx}\n{{"); } else { writer.Write("\n{"); } //dump field if (config.DumpField && typeDef.field_count > 0) { writer.Write("\n\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 fieldDefaultValue = metadata.GetFieldDefaultValueFromIndex(i); writer.Write(GetCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, "\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($"{GetTypeName(fieldType)} {metadata.GetStringFromIndex(fieldDef.nameIndex)}"); if (fieldDefaultValue != null && fieldDefaultValue.dataIndex != -1) { var pointer = metadata.GetDefaultValueFromIndex(fieldDefaultValue.dataIndex); if (pointer > 0) { var fieldDefaultValueType = il2cpp.types[fieldDefaultValue.typeIndex]; metadata.Position = pointer; object val = null; switch (fieldDefaultValueType.type) { case Il2CppTypeEnum.IL2CPP_TYPE_BOOLEAN: val = metadata.ReadBoolean(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U1: val = metadata.ReadByte(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I1: val = metadata.ReadSByte(); break; case Il2CppTypeEnum.IL2CPP_TYPE_CHAR: val = BitConverter.ToChar(metadata.ReadBytes(2), 0); break; case Il2CppTypeEnum.IL2CPP_TYPE_U2: val = metadata.ReadUInt16(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I2: val = metadata.ReadInt16(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U4: val = metadata.ReadUInt32(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I4: val = metadata.ReadInt32(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U8: val = metadata.ReadUInt64(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I8: val = metadata.ReadInt64(); break; case Il2CppTypeEnum.IL2CPP_TYPE_R4: val = metadata.ReadSingle(); break; case Il2CppTypeEnum.IL2CPP_TYPE_R8: val = metadata.ReadDouble(); break; case Il2CppTypeEnum.IL2CPP_TYPE_STRING: var len = metadata.ReadInt32(); val = Encoding.UTF8.GetString(metadata.ReadBytes(len)); break; //case Il2CppTypeEnum.IL2CPP_TYPE_VALUETYPE: default: writer.Write($" /*Default value offset 0x{pointer:X}*/"); break; } if (val is string str) { writer.Write($" = \"{ToEscapedString(str)}\""); } else if (val is char c) { var v = (int)c; writer.Write($" = '\\x{v:x}'"); } else if (val != null) { writer.Write($" = {val}"); } } } if (config.DumpFieldOffset) { writer.Write("; // 0x{0:X}\n", il2cpp.GetFieldOffsetFromIndex(idx, i - typeDef.fieldStart, i)); } else { writer.Write(";\n"); } } } //dump property if (config.DumpProperty && typeDef.property_count > 0) { writer.Write("\n\t// Properties\n"); var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; writer.Write(GetCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, "\t")); writer.Write("\t"); if (propertyDef.get >= 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.get]; writer.Write(GetModifiers(methodDef)); var propertyType = il2cpp.types[methodDef.returnType]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } else if (propertyDef.set > 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set]; writer.Write(GetModifiers(methodDef)); var parameterDef = metadata.parameterDefs[methodDef.parameterStart]; var propertyType = il2cpp.types[parameterDef.typeIndex]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } if (propertyDef.get >= 0) { writer.Write("get; "); } if (propertyDef.set >= 0) { writer.Write("set; "); } writer.Write("}"); writer.Write("\n"); } } //dump method if (config.DumpMethod && typeDef.method_count > 0) { writer.Write("\n\t// Methods\n"); var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; writer.Write(GetCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, "\t")); writer.Write("\t"); writer.Write(GetModifiers(methodDef)); var methodReturnType = il2cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); writer.Write($"{GetTypeName(methodReturnType)} {methodName}("); var parameterStrs = new List <string>(); for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterStr = ""; var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2cpp.types[parameterDef.typeIndex]; var parameterTypeName = GetTypeName(parameterType); if ((parameterType.attrs & PARAM_ATTRIBUTE_OPTIONAL) != 0) { parameterStr += "optional "; } if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0) { parameterStr += "out "; } parameterStr += $"{parameterTypeName} {parameterName}"; parameterStrs.Add(parameterStr); } writer.Write(string.Join(", ", parameterStrs)); if (config.DumpMethodOffset) { var methodPointer = il2cpp.GetMethodPointer(methodDef.methodIndex, i, imageIndex, methodDef.token); if (methodPointer > 0) { var fixedMethodPointer = il2cpp.FixPointer(methodPointer); writer.Write("); // RVA: 0x{0:X} Offset: 0x{1:X}\n", fixedMethodPointer, il2cpp.MapVATR(methodPointer)); //Script - methodPointer if (il2cpp is PE) { scriptwriter.WriteLine($"SetName(0x{methodPointer:X}, '{typeName + "$$" + methodName}')"); } else { scriptwriter.WriteLine($"SetName(0x{fixedMethodPointer:X}, '{typeName + "$$" + methodName}')"); } } else { writer.Write("); // -1\n"); } } else { writer.Write("); \n"); } } } writer.Write("}\n"); } } catch (Exception e) { Console.WriteLine("ERROR: Some errors in dumping"); writer.Write("/*"); writer.Write(e); writer.Write("*/\n}\n"); } } scriptwriter.WriteLine("print('Make method name done')"); //Script - MetadataUsage if (il2cpp.version > 16) { scriptwriter.WriteLine("print('Setting MetadataUsage...')"); foreach (var i in metadata.metadataUsageDic[1]) //kIl2CppMetadataUsageTypeInfo { var type = il2cpp.types[i.Value]; var typeName = GetTypeName(type, true); scriptwriter.WriteLine($"SetName(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Class$" + typeName}')"); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, r'{typeName}', 1)"); } foreach (var i in metadata.metadataUsageDic[2]) //kIl2CppMetadataUsageIl2CppType { var type = il2cpp.types[i.Value]; var typeName = GetTypeName(type, true); scriptwriter.WriteLine($"SetName(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Class$" + typeName}')"); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, r'{typeName}', 1)"); } foreach (var i in metadata.metadataUsageDic[3]) //kIl2CppMetadataUsageMethodDef { var methodDef = metadata.methodDefs[i.Value]; var typeDef = metadata.typeDefs[methodDef.declaringType]; var typeName = GetTypeName(typeDef); var methodName = typeName + "." + metadata.GetStringFromIndex(methodDef.nameIndex) + "()"; scriptwriter.WriteLine($"SetName(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Method$" + methodName}')"); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Method$" + methodName}', 1)"); var imageIndex = typeDefImageIndices[typeDef]; var methodPointer = il2cpp.GetMethodPointer(methodDef.methodIndex, (int)i.Value, imageIndex, methodDef.token); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, '0x{methodPointer:X}', 0)"); } foreach (var i in metadata.metadataUsageDic[4]) //kIl2CppMetadataUsageFieldInfo { var fieldRef = metadata.fieldRefs[i.Value]; var type = il2cpp.types[fieldRef.typeIndex]; var typeDef = metadata.typeDefs[type.data.klassIndex]; var fieldDef = metadata.fieldDefs[typeDef.fieldStart + fieldRef.fieldIndex]; var fieldName = GetTypeName(type, true) + "." + metadata.GetStringFromIndex(fieldDef.nameIndex); scriptwriter.WriteLine($"SetName(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Field$" + fieldName}')"); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, r'{fieldName}', 1)"); } var stringLiterals = metadata.metadataUsageDic[5].Select(x => new //kIl2CppMetadataUsageStringLiteral { value = metadata.GetStringLiteralFromIndex(x.Value), address = $"0x{il2cpp.metadataUsages[x.Key]:X}" }).ToArray(); File.WriteAllText("stringliteral.json", JsonConvert.SerializeObject(stringLiterals, Formatting.Indented), new UTF8Encoding(false)); foreach (var stringLiteral in stringLiterals) { scriptwriter.WriteLine($"SetString({stringLiteral.address}, r'{ToEscapedString(stringLiteral.value)}')"); } foreach (var i in metadata.metadataUsageDic[6]) //kIl2CppMetadataUsageMethodRef { var methodSpec = il2cpp.methodSpecs[i.Value]; var methodDef = metadata.methodDefs[methodSpec.methodDefinitionIndex]; var typeDef = metadata.typeDefs[methodDef.declaringType]; var typeName = GetTypeName(typeDef); // Class of the method is generic if (methodSpec.classIndexIndex != -1) { var classInst = il2cpp.genericInsts[methodSpec.classIndexIndex]; typeName += GetGenericTypeParams(classInst); } var methodName = typeName + "." + metadata.GetStringFromIndex(methodDef.nameIndex) + "()"; // Method itself is generic if (methodSpec.methodIndexIndex != -1) { var methodInst = il2cpp.genericInsts[methodSpec.methodIndexIndex]; methodName += GetGenericTypeParams(methodInst); } scriptwriter.WriteLine($"SetName(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Method$" + methodName}')"); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, '{"Method$" + methodName}', 1)"); var imageIndex = typeDefImageIndices[typeDef]; var methodPointer = il2cpp.GetMethodPointer(methodDef.methodIndex, methodSpec.methodDefinitionIndex, imageIndex, methodDef.token); scriptwriter.WriteLine($"idc.set_cmt(0x{il2cpp.metadataUsages[i.Key]:X}, '0x{methodPointer:X}', 0)"); } scriptwriter.WriteLine("print('Set MetadataUsage done')"); } //Script - MakeFunction if (config.MakeFunction) { List <ulong> orderedPointers; if (il2cpp.version >= 24.2f) { orderedPointers = new List <ulong>(); foreach (var methodPointers in il2cpp.codeGenModuleMethodPointers) { orderedPointers.AddRange(methodPointers); } } else { orderedPointers = il2cpp.methodPointers.ToList(); } orderedPointers.AddRange(il2cpp.genericMethodPointers); orderedPointers.AddRange(il2cpp.invokerPointers); orderedPointers.AddRange(il2cpp.customAttributeGenerators); if (il2cpp.version >= 22) { orderedPointers.AddRange(il2cpp.reversePInvokeWrappers); orderedPointers.AddRange(il2cpp.unresolvedVirtualCallPointers); } //TODO interopData内也包含函数 orderedPointers = orderedPointers.Distinct().OrderBy(x => x).ToList(); orderedPointers.Remove(0); scriptwriter.WriteLine("print('Making function...')"); for (int i = 0; i < orderedPointers.Count - 1; i++) { scriptwriter.WriteLine($"MakeFunction(0x{orderedPointers[i]:X}, 0x{orderedPointers[i + 1]:X})"); } scriptwriter.WriteLine("print('Make function done, please wait for IDA to complete the analysis')"); } scriptwriter.WriteLine("print('Script finish !')"); //writer close writer.Close(); scriptwriter.Close(); Console.WriteLine("Done !"); //DummyDll if (config.DummyDll) { Console.WriteLine("Create 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 !"); } }
public DummyAssemblyGenerator(Il2CppExecutor il2CppExecutor, bool addToken) { executor = il2CppExecutor; metadata = il2CppExecutor.metadata; il2Cpp = il2CppExecutor.il2Cpp; //Il2CppDummyDll var il2CppDummyDll = Il2CppDummyDll.Create(); Assemblies.Add(il2CppDummyDll); var addressAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AddressAttribute").Methods[0]; var fieldOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "FieldOffsetAttribute").Methods[0]; attributeAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "AttributeAttribute").Methods[0]; var metadataOffsetAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "MetadataOffsetAttribute").Methods[0]; var tokenAttribute = il2CppDummyDll.MainModule.Types.First(x => x.Name == "TokenAttribute").Methods[0]; stringType = il2CppDummyDll.MainModule.TypeSystem.String; var resolver = new MyAssemblyResolver(); var moduleParameters = new ModuleParameters { Kind = ModuleKind.Dll, AssemblyResolver = resolver }; resolver.Register(il2CppDummyDll); var parameterDefinitionDic = new Dictionary <int, ParameterDefinition>(); var eventDefinitionDic = new Dictionary <int, EventDefinition>(); //创建程序集,同时创建所有类 foreach (var imageDef in metadata.imageDefs) { var imageName = metadata.GetStringFromIndex(imageDef.nameIndex); var aname = metadata.assemblyDefs[imageDef.assemblyIndex].aname; var assemblyName = metadata.GetStringFromIndex(aname.nameIndex); Version vers; if (aname.build >= 0) { vers = new Version(aname.major, aname.minor, aname.build, aname.revision); } else { //__Generated vers = new Version(3, 7, 1, 6); } var assemblyNameDef = new AssemblyNameDefinition(assemblyName, vers); /*assemblyNameDef.Culture = metadata.GetStringFromIndex(aname.cultureIndex); * assemblyNameDef.PublicKey = Encoding.UTF8.GetBytes(metadata.GetStringFromIndex(aname.publicKeyIndex)); * assemblyNameDef.HashAlgorithm = (AssemblyHashAlgorithm)aname.hash_alg; * assemblyNameDef.Attributes = (AssemblyAttributes)aname.flags; * assemblyNameDef.PublicKeyToken = aname.public_key_token;*/ var assemblyDefinition = AssemblyDefinition.CreateAssembly(assemblyNameDef, imageName, moduleParameters); resolver.Register(assemblyDefinition); Assemblies.Add(assemblyDefinition); var moduleDefinition = assemblyDefinition.MainModule; moduleDefinition.Types.Clear();//清除自动创建的<Module>类 var typeEnd = imageDef.typeStart + imageDef.typeCount; for (var index = imageDef.typeStart; index < typeEnd; ++index) { var typeDef = metadata.typeDefs[index]; var namespaceName = metadata.GetStringFromIndex(typeDef.namespaceIndex); var typeName = metadata.GetStringFromIndex(typeDef.nameIndex); var typeDefinition = new TypeDefinition(namespaceName, typeName, (TypeAttributes)typeDef.flags); typeDefinitionDic.Add(typeDef, typeDefinition); if (typeDef.declaringTypeIndex == -1) { moduleDefinition.Types.Add(typeDefinition); } } } foreach (var imageDef in metadata.imageDefs) { var typeEnd = imageDef.typeStart + imageDef.typeCount; for (var index = imageDef.typeStart; index < typeEnd; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[typeDef]; //nestedtype for (int i = 0; i < typeDef.nested_type_count; i++) { var nestedIndex = metadata.nestedTypeIndices[typeDef.nestedTypesStart + i]; var nestedTypeDef = metadata.typeDefs[nestedIndex]; var nestedTypeDefinition = typeDefinitionDic[nestedTypeDef]; typeDefinition.NestedTypes.Add(nestedTypeDefinition); } } } //提前处理 foreach (var imageDef in metadata.imageDefs) { var typeEnd = imageDef.typeStart + imageDef.typeCount; for (var index = imageDef.typeStart; index < typeEnd; ++index) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[typeDef]; if (addToken) { var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute)); customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{typeDef.token:X}"))); typeDefinition.CustomAttributes.Add(customTokenAttribute); } //genericParameter if (typeDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex]; for (int i = 0; i < genericContainer.type_argc; i++) { var genericParameterIndex = genericContainer.genericParameterStart + i; var param = metadata.genericParameters[genericParameterIndex]; var genericParameter = CreateGenericParameter(param, typeDefinition); typeDefinition.GenericParameters.Add(genericParameter); } } //parent if (typeDef.parentIndex >= 0) { var parentType = il2Cpp.types[typeDef.parentIndex]; var parentTypeRef = GetTypeReference(typeDefinition, parentType); typeDefinition.BaseType = parentTypeRef; } //interfaces for (int i = 0; i < typeDef.interfaces_count; i++) { var interfaceType = il2Cpp.types[metadata.interfaceIndices[typeDef.interfacesStart + i]]; var interfaceTypeRef = GetTypeReference(typeDefinition, interfaceType); typeDefinition.Interfaces.Add(new InterfaceImplementation(interfaceTypeRef)); } } } //处理field, method, property等等 foreach (var imageDef in metadata.imageDefs) { var imageName = metadata.GetStringFromIndex(imageDef.nameIndex); var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int index = imageDef.typeStart; index < typeEnd; index++) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[typeDef]; //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2Cpp.types[fieldDef.typeIndex]; var fieldName = metadata.GetStringFromIndex(fieldDef.nameIndex); var fieldTypeRef = GetTypeReference(typeDefinition, fieldType); var fieldDefinition = new FieldDefinition(fieldName, (FieldAttributes)fieldType.attrs, fieldTypeRef); typeDefinition.Fields.Add(fieldDefinition); fieldDefinitionDic.Add(i, fieldDefinition); if (addToken) { var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute)); customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{fieldDef.token:X}"))); fieldDefinition.CustomAttributes.Add(customTokenAttribute); } //fieldDefault if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefault) && fieldDefault.dataIndex != -1) { if (executor.TryGetDefaultValue(fieldDefault.typeIndex, fieldDefault.dataIndex, out var value)) { fieldDefinition.Constant = value; } else { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}")); customAttribute.Fields.Add(offset); fieldDefinition.CustomAttributes.Add(customAttribute); } } //fieldOffset if (!fieldDefinition.IsLiteral) { var fieldOffset = il2Cpp.GetFieldOffsetFromIndex(index, i - typeDef.fieldStart, i, typeDefinition.IsValueType, fieldDefinition.IsStatic); if (fieldOffset >= 0) { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(fieldOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{fieldOffset:X}")); customAttribute.Fields.Add(offset); fieldDefinition.CustomAttributes.Add(customAttribute); } } } //method var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); var methodDefinition = new MethodDefinition(methodName, (MethodAttributes)methodDef.flags, typeDefinition.Module.ImportReference(typeof(void))); methodDefinition.ImplAttributes = (MethodImplAttributes)methodDef.iflags; typeDefinition.Methods.Add(methodDefinition); //genericParameter if (methodDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex]; for (int j = 0; j < genericContainer.type_argc; j++) { var genericParameterIndex = genericContainer.genericParameterStart + j; var param = metadata.genericParameters[genericParameterIndex]; var genericParameter = CreateGenericParameter(param, methodDefinition); methodDefinition.GenericParameters.Add(genericParameter); } } var methodReturnType = il2Cpp.types[methodDef.returnType]; var returnType = GetTypeReferenceWithByRef(methodDefinition, methodReturnType); methodDefinition.ReturnType = returnType; if (addToken) { var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute)); customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{methodDef.token:X}"))); methodDefinition.CustomAttributes.Add(customTokenAttribute); } if (methodDefinition.HasBody && typeDefinition.BaseType?.FullName != "System.MulticastDelegate") { var ilprocessor = methodDefinition.Body.GetILProcessor(); if (returnType.FullName == "System.Void") { ilprocessor.Append(ilprocessor.Create(OpCodes.Ret)); } else if (returnType.IsValueType) { var variable = new VariableDefinition(returnType); methodDefinition.Body.Variables.Add(variable); ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloca_S, variable)); ilprocessor.Append(ilprocessor.Create(OpCodes.Initobj, returnType)); ilprocessor.Append(ilprocessor.Create(OpCodes.Ldloc_0)); ilprocessor.Append(ilprocessor.Create(OpCodes.Ret)); } else { ilprocessor.Append(ilprocessor.Create(OpCodes.Ldnull)); ilprocessor.Append(ilprocessor.Create(OpCodes.Ret)); } } methodDefinitionDic.Add(i, methodDefinition); //method parameter for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2Cpp.types[parameterDef.typeIndex]; var parameterTypeRef = GetTypeReferenceWithByRef(methodDefinition, parameterType); var parameterDefinition = new ParameterDefinition(parameterName, (ParameterAttributes)parameterType.attrs, parameterTypeRef); methodDefinition.Parameters.Add(parameterDefinition); parameterDefinitionDic.Add(methodDef.parameterStart + j, parameterDefinition); //ParameterDefault if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1) { if (executor.TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value)) { parameterDefinition.Constant = value; } else { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(metadataOffsetAttribute)); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{value:X}")); customAttribute.Fields.Add(offset); parameterDefinition.CustomAttributes.Add(customAttribute); } } } //methodAddress if (!methodDefinition.IsAbstract) { var methodPointer = il2Cpp.GetMethodPointer(imageName, methodDef); if (methodPointer > 0) { var customAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(addressAttribute)); var fixedMethodPointer = il2Cpp.GetRVA(methodPointer); var rva = new CustomAttributeNamedArgument("RVA", new CustomAttributeArgument(stringType, $"0x{fixedMethodPointer:X}")); var offset = new CustomAttributeNamedArgument("Offset", new CustomAttributeArgument(stringType, $"0x{il2Cpp.MapVATR(methodPointer):X}")); var va = new CustomAttributeNamedArgument("VA", new CustomAttributeArgument(stringType, $"0x{methodPointer:X}")); customAttribute.Fields.Add(rva); customAttribute.Fields.Add(offset); customAttribute.Fields.Add(va); if (methodDef.slot != ushort.MaxValue) { var slot = new CustomAttributeNamedArgument("Slot", new CustomAttributeArgument(stringType, methodDef.slot.ToString())); customAttribute.Fields.Add(slot); } methodDefinition.CustomAttributes.Add(customAttribute); } } } //property var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; var propertyName = metadata.GetStringFromIndex(propertyDef.nameIndex); TypeReference propertyType = null; MethodDefinition GetMethod = null; MethodDefinition SetMethod = null; if (propertyDef.get >= 0) { GetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.get]; propertyType = GetMethod.ReturnType; } if (propertyDef.set >= 0) { SetMethod = methodDefinitionDic[typeDef.methodStart + propertyDef.set]; if (propertyType == null) { propertyType = SetMethod.Parameters[0].ParameterType; } } var propertyDefinition = new PropertyDefinition(propertyName, (PropertyAttributes)propertyDef.attrs, propertyType) { GetMethod = GetMethod, SetMethod = SetMethod }; typeDefinition.Properties.Add(propertyDefinition); propertyDefinitionDic.Add(i, propertyDefinition); if (addToken) { var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute)); customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{propertyDef.token:X}"))); propertyDefinition.CustomAttributes.Add(customTokenAttribute); } } //event var eventEnd = typeDef.eventStart + typeDef.event_count; for (var i = typeDef.eventStart; i < eventEnd; ++i) { var eventDef = metadata.eventDefs[i]; var eventName = metadata.GetStringFromIndex(eventDef.nameIndex); var eventType = il2Cpp.types[eventDef.typeIndex]; var eventTypeRef = GetTypeReference(typeDefinition, eventType); var eventDefinition = new EventDefinition(eventName, (EventAttributes)eventType.attrs, eventTypeRef); if (eventDef.add >= 0) { eventDefinition.AddMethod = methodDefinitionDic[typeDef.methodStart + eventDef.add]; } if (eventDef.remove >= 0) { eventDefinition.RemoveMethod = methodDefinitionDic[typeDef.methodStart + eventDef.remove]; } if (eventDef.raise >= 0) { eventDefinition.InvokeMethod = methodDefinitionDic[typeDef.methodStart + eventDef.raise]; } typeDefinition.Events.Add(eventDefinition); eventDefinitionDic.Add(i, eventDefinition); if (addToken) { var customTokenAttribute = new CustomAttribute(typeDefinition.Module.ImportReference(tokenAttribute)); customTokenAttribute.Fields.Add(new CustomAttributeNamedArgument("Token", new CustomAttributeArgument(stringType, $"0x{eventDef.token:X}"))); eventDefinition.CustomAttributes.Add(customTokenAttribute); } } } } //第三遍,添加CustomAttribute if (il2Cpp.Version > 20) { foreach (var imageDef in metadata.imageDefs) { var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int index = imageDef.typeStart; index < typeEnd; index++) { var typeDef = metadata.typeDefs[index]; var typeDefinition = typeDefinitionDic[typeDef]; //typeAttribute CreateCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token, typeDefinition.Module, typeDefinition.CustomAttributes); //field var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldDefinition = fieldDefinitionDic[i]; //fieldAttribute CreateCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, typeDefinition.Module, fieldDefinition.CustomAttributes); } //method var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; var methodDefinition = methodDefinitionDic[i]; //methodAttribute CreateCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, typeDefinition.Module, methodDefinition.CustomAttributes); //method parameter for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterDefinition = parameterDefinitionDic[methodDef.parameterStart + j]; //parameterAttribute CreateCustomAttribute(imageDef, parameterDef.customAttributeIndex, parameterDef.token, typeDefinition.Module, parameterDefinition.CustomAttributes); } } //property var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; var propertyDefinition = propertyDefinitionDic[i]; //propertyAttribute CreateCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, typeDefinition.Module, propertyDefinition.CustomAttributes); } //event var eventEnd = typeDef.eventStart + typeDef.event_count; for (var i = typeDef.eventStart; i < eventEnd; ++i) { var eventDef = metadata.eventDefs[i]; var eventDefinition = eventDefinitionDic[i]; //eventAttribute CreateCustomAttribute(imageDef, eventDef.customAttributeIndex, eventDef.token, typeDefinition.Module, eventDefinition.CustomAttributes); } } } } }
public void Decompile(StreamWriter writer, Config config) { //dump image for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { var imageDef = metadata.imageDefs[imageIndex]; writer.Write($"// Image {imageIndex}: {metadata.GetStringFromIndex(imageDef.nameIndex)} - {imageDef.typeStart}\n"); } //dump type for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { try { var imageDef = metadata.imageDefs[imageIndex]; var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int idx = imageDef.typeStart; idx < typeEnd; idx++) { 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); } } 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($"\n// Namespace: {metadata.GetStringFromIndex(typeDef.namespaceIndex)}\n"); if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, typeDef.customAttributeIndex, typeDef.token)); } if (config.DumpAttribute && (typeDef.flags & TYPE_ATTRIBUTE_SERIALIZABLE) != 0) { writer.Write("[Serializable]\n"); } var visibility = typeDef.flags & TYPE_ATTRIBUTE_VISIBILITY_MASK; switch (visibility) { case TYPE_ATTRIBUTE_PUBLIC: case TYPE_ATTRIBUTE_NESTED_PUBLIC: writer.Write("public "); break; case TYPE_ATTRIBUTE_NOT_PUBLIC: case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM: case TYPE_ATTRIBUTE_NESTED_ASSEMBLY: writer.Write("internal "); break; case TYPE_ATTRIBUTE_NESTED_PRIVATE: writer.Write("private "); break; case TYPE_ATTRIBUTE_NESTED_FAMILY: writer.Write("protected "); break; case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM: writer.Write("protected internal "); break; } if ((typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0 && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("static "); } else if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) == 0 && (typeDef.flags & TYPE_ATTRIBUTE_ABSTRACT) != 0) { writer.Write("abstract "); } else if (!isStruct && !isEnum && (typeDef.flags & TYPE_ATTRIBUTE_SEALED) != 0) { writer.Write("sealed "); } if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0) { writer.Write("interface "); } else if (isStruct) { writer.Write("struct "); } else if (isEnum) { writer.Write("enum "); } else { writer.Write("class "); } var typeName = GetTypeName(typeDef); writer.Write($"{typeName}"); if (extends.Count > 0) { writer.Write($" : {string.Join(", ", extends)}"); } if (config.DumpTypeDefIndex) { writer.Write($" // TypeDefIndex: {idx}\n{{"); } else { writer.Write("\n{"); } //dump field if (config.DumpField && typeDef.field_count > 0) { writer.Write("\n\t// Fields\n"); var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2Cpp.types[fieldDef.typeIndex]; var fieldDefaultValue = metadata.GetFieldDefaultValueFromIndex(i); if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, fieldDef.customAttributeIndex, fieldDef.token, "\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($"{GetTypeName(fieldType)} {metadata.GetStringFromIndex(fieldDef.nameIndex)}"); if (fieldDefaultValue != null && fieldDefaultValue.dataIndex != -1) { var pointer = metadata.GetDefaultValueFromIndex(fieldDefaultValue.dataIndex); var fieldDefaultValueType = il2Cpp.types[fieldDefaultValue.typeIndex]; metadata.Position = pointer; object val = null; switch (fieldDefaultValueType.type) { case Il2CppTypeEnum.IL2CPP_TYPE_BOOLEAN: val = metadata.ReadBoolean(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U1: val = metadata.ReadByte(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I1: val = metadata.ReadSByte(); break; case Il2CppTypeEnum.IL2CPP_TYPE_CHAR: val = BitConverter.ToChar(metadata.ReadBytes(2), 0); break; case Il2CppTypeEnum.IL2CPP_TYPE_U2: val = metadata.ReadUInt16(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I2: val = metadata.ReadInt16(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U4: val = metadata.ReadUInt32(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I4: val = metadata.ReadInt32(); break; case Il2CppTypeEnum.IL2CPP_TYPE_U8: val = metadata.ReadUInt64(); break; case Il2CppTypeEnum.IL2CPP_TYPE_I8: val = metadata.ReadInt64(); break; case Il2CppTypeEnum.IL2CPP_TYPE_R4: val = metadata.ReadSingle(); break; case Il2CppTypeEnum.IL2CPP_TYPE_R8: val = metadata.ReadDouble(); break; case Il2CppTypeEnum.IL2CPP_TYPE_STRING: var len = metadata.ReadInt32(); val = Encoding.UTF8.GetString(metadata.ReadBytes(len)); break; default: writer.Write($" /*Metadata offset 0x{pointer:X}*/"); break; } if (val is string str) { writer.Write($" = \"{ToEscapedString(str)}\""); } else if (val is char c) { var v = (int)c; writer.Write($" = '\\x{v:x}'"); } else if (val != null) { writer.Write($" = {val}"); } } if (config.DumpFieldOffset) { writer.Write("; // 0x{0:X}\n", il2Cpp.GetFieldOffsetFromIndex(idx, i - typeDef.fieldStart, i)); } else { writer.Write(";\n"); } } } //dump property if (config.DumpProperty && typeDef.property_count > 0) { writer.Write("\n\t// Properties\n"); var propertyEnd = typeDef.propertyStart + typeDef.property_count; for (var i = typeDef.propertyStart; i < propertyEnd; ++i) { var propertyDef = metadata.propertyDefs[i]; if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, propertyDef.customAttributeIndex, propertyDef.token, "\t")); } writer.Write("\t"); if (propertyDef.get >= 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.get]; writer.Write(GetModifiers(methodDef)); var propertyType = il2Cpp.types[methodDef.returnType]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } else if (propertyDef.set > 0) { var methodDef = metadata.methodDefs[typeDef.methodStart + propertyDef.set]; writer.Write(GetModifiers(methodDef)); var parameterDef = metadata.parameterDefs[methodDef.parameterStart]; var propertyType = il2Cpp.types[parameterDef.typeIndex]; writer.Write($"{GetTypeName(propertyType)} {metadata.GetStringFromIndex(propertyDef.nameIndex)} {{ "); } if (propertyDef.get >= 0) { writer.Write("get; "); } if (propertyDef.set >= 0) { writer.Write("set; "); } writer.Write("}"); writer.Write("\n"); } } //dump method if (config.DumpMethod && typeDef.method_count > 0) { writer.Write("\n\t// Methods\n"); var methodEnd = typeDef.methodStart + typeDef.method_count; for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; if (config.DumpAttribute) { writer.Write(GetCustomAttribute(imageDef, methodDef.customAttributeIndex, methodDef.token, "\t")); } writer.Write("\t"); writer.Write(GetModifiers(methodDef)); var methodReturnType = il2Cpp.types[methodDef.returnType]; var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); if (methodReturnType.byref == 1) { writer.Write("ref "); } writer.Write($"{GetTypeName(methodReturnType)} {methodName}("); var parameterStrs = new List <string>(); for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterStr = ""; var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); var parameterType = il2Cpp.types[parameterDef.typeIndex]; var parameterTypeName = GetTypeName(parameterType); if (parameterType.byref == 1) { if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) == 0) { parameterStr += "out "; } else if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) == 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0) { parameterStr += "in "; } else { parameterStr += "ref "; } } else { if ((parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0) { parameterStr += "[In] "; } if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0) { parameterStr += "[Out] "; } } parameterStr += $"{parameterTypeName} {parameterName}"; var parameterDefault = metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j); if (parameterDefault != null && parameterDefault.dataIndex != -1) { var value = GetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex); if (value is string str) { parameterStr += $" = \"{ToEscapedString(str)}\""; } else if (value is char c) { var v = (int)c; parameterStr += $" = '\\x{v:x}'"; } else if (value != null) { parameterStr += $" = {value}"; } } parameterStrs.Add(parameterStr); } writer.Write(string.Join(", ", parameterStrs)); writer.Write(") { }"); if (config.DumpMethodOffset) { var methodPointer = il2Cpp.GetMethodPointer(methodDef.methodIndex, i, imageIndex, methodDef.token); if (methodPointer > 0) { var fixedMethodPointer = il2Cpp.FixPointer(methodPointer); writer.Write(" // RVA: 0x{0:X} Offset: 0x{1:X}\n", fixedMethodPointer, il2Cpp.MapVATR(methodPointer)); } else { writer.Write(" // -1\n"); } } else { writer.Write("\n"); } } } writer.Write("}\n"); } } catch (Exception e) { Console.WriteLine("ERROR: Some errors in dumping"); writer.Write("/*"); writer.Write(e); writer.Write("*/\n}\n"); } } writer.Close(); }
public void Decompile(Config config, string outputDir) { //var writer = new StreamWriter(new FileStream(outputDir + "dump.cs", FileMode.Create), new UTF8Encoding(false)); //dump image for (var imageIndex = 0; imageIndex < metadata.imageDefs.Length; imageIndex++) { //var imageDef = metadata.imageDefs[imageIndex]; //writer.Write($"// Image {imageIndex}: {metadata.GetStringFromIndex(imageDef.nameIndex)} - {imageDef.typeStart}\n"); } //dump type foreach (var imageDef in metadata.imageDefs) { string typeName = ""; try { var imageName = metadata.GetStringFromIndex(imageDef.nameIndex); var typeEnd = imageDef.typeStart + imageDef.typeCount; for (int typeDefIndex = imageDef.typeStart; typeDefIndex < typeEnd; typeDefIndex++) { var types = new HashSet <Il2CppType>(); var hpp_includes = new HashSet <string>(); var cpp_includes = new HashSet <string>(); bool is_generic = false; bool is_interface = false; var typeDef = metadata.typeDefs[typeDefIndex]; typeName = executor.GetTypeDefName(typeDef, false, false); var genericTypeName = executor.GetTypeDefName(typeDef, false, true); var generic_decl = executor.GetTypeDefName(typeDef, false, true, true); var extends = new List <string>(); var namespaze = metadata.GetStringFromIndex(typeDef.namespaceIndex); namespaze = namespaze.Replace(".", "::"); typeName = clear_name(typeName); typeName = deobfu(typeName); // if (typeName == "Object" && namespaze == "unityEngine") extends.add(il2cppObject); var fullTypeName = typeName; if (namespaze != "") { fullTypeName = namespaze + "::" + typeName; } if (executor.GetTypeDefName(typeDef, false, true).Contains("<")) { is_generic = true; } // skip //if ((typeDef.flags & TYPE_ATTRIBUTE_INTERFACE) != 0) continue; //if ((typeDef.flags & TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM) != 0) continue; if (klasses.Count() > 0 && !klasses.Contains(typeName)) { continue; } // outputs string hpp_headers = ""; string cpp_headers = ""; string statics_def = ""; string meta_statics = ""; string methods_rva = ""; string fields = ""; string methods = ""; string methods_decl = ""; string methods_def = ""; string klass = ""; string klass_meta = ""; string klass_inerhit = ""; // file string file_path = "au/" + namespaze.Replace("::", "/") + "/"; file_path += typeName; StreamWriter hpp_writer; StreamWriter cpp_writer; try { Directory.CreateDirectory(Path.GetDirectoryName(file_path)); hpp_writer = new StreamWriter(new FileStream(outputDir + file_path + ".hpp", FileMode.Create), new UTF8Encoding(false)); cpp_writer = new StreamWriter(new FileStream(outputDir + file_path + ".cpp", FileMode.Create), new UTF8Encoding(false)); } catch (Exception) { continue; } if (typeDef.parentIndex >= 0) { var parent = il2Cpp.types[typeDef.parentIndex]; var parentName = executor.GetTypeName(parent, true, false, false); if (!typeDef.IsValueType && !typeDef.IsEnum && parentName != "object") { extends.Add(parentName); //types.Add(parent); hpp_includes.Add("#include <" + include_path(parent) + ".hpp>\n"); } } 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(executor.GetTypeName(@interface, false, false)); } } if (is_generic) { klass += generic_decl + "\n"; } if (typeDef.IsEnum) { klass += "enum class "; } else { klass += "struct "; } klass += typeName; genericTypeName = deobfu(genericTypeName.Replace("::", "_")); if (!typeDef.IsEnum) { if (extends.Count > 0) { klass_inerhit = $" : ark::meta<{genericTypeName}, {string.Join(", ", extends)}>"; } else { klass_inerhit = $" : ark::meta<{genericTypeName}>"; } klass_meta = $"ark_meta(\"{namespaze}\", \"{typeName}\", \"\");"; } //dump field if (config.DumpField && typeDef.field_count > 0) { fields += "\n // Fields\n\n"; var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { var fieldDef = metadata.fieldDefs[i]; var fieldType = il2Cpp.types[fieldDef.typeIndex]; var isStatic = false; var isConst = false; var field_typename = executor.GetTypeName(fieldType, true, false, true); field_typename = deobfu(field_typename); var field_name = metadata.GetStringFromIndex(fieldDef.nameIndex); field_name = deobfu(field_name); field_name = clear_name(field_name); types.Add(fieldType); fields += " "; var access = fieldType.attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK; // enum if (typeDef.IsEnum) { if (i == typeDef.fieldStart) { klass_inerhit = " : " + field_typename; } else { fields += field_name; if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefaultValue) && fieldDefaultValue.dataIndex != -1) { if (TryGetDefaultValue(fieldDefaultValue.typeIndex, fieldDefaultValue.dataIndex, out var value)) { fields += $" = "; if (value is string str) { fields += $"\"{str.ToEscapedString()}\""; } else if (value is char c) { var v = (int)c; fields += $"'\\x{v:x}'"; } else if (value != null) { fields += $"{value}"; } } else { fields += $" /*Metadata offset 0x{value:X}*/"; } } fields += ","; } } // class else { if ((fieldType.attrs & FIELD_ATTRIBUTE_LITERAL) != 0) { isConst = true; fields += "inline static constexpr "; } else { if ((fieldType.attrs & FIELD_ATTRIBUTE_STATIC) != 0) { isStatic = true; fields += "static "; var return_type = executor.GetTypeName(fieldType, true, false, true); statics_def += "\n" + return_type + " " + executor.GetTypeDefName(typeDef, true, true) + "::" + field_name + "() { return statics()->" + field_name + "; }"; meta_statics += "\n " + return_type + " " + field_name + ";"; } } if (field_typename == "object") { field_typename = typeName + "*"; } if (isConst && field_typename == "cs::string*") { field_typename = "const char*"; } fields += $"{field_typename} {field_name}"; if (isStatic) { fields += "()"; } if (metadata.GetFieldDefaultValueFromIndex(i, out var fieldDefaultValue) && fieldDefaultValue.dataIndex != -1) { if (TryGetDefaultValue(fieldDefaultValue.typeIndex, fieldDefaultValue.dataIndex, out var value)) { fields += $" = "; if (value is string str) { fields += $"\"{str.ToEscapedString()}\""; } else if (value is char c) { var v = (int)c; fields += $"'\\x{v:x}'"; } else if (value != null) { fields += cpp_value($"{value}"); } } else { fields += $" /*Metadata offset 0x{value:X}*/"; } } if (config.DumpFieldOffset && !isConst) { fields += $"; // 0x{il2Cpp.GetFieldOffsetFromIndex(typeDefIndex, i - typeDef.fieldStart, i, typeDef.IsValueType, isStatic):X}"; } else { fields += ";\n"; } } fields += "\n"; } } //dump method if (config.DumpMethod && typeDef.method_count > 0) { methods_decl += "\n // Methods\n\n"; methods_def += "\n // Methods\n\n"; var methodEnd = typeDef.methodStart + typeDef.method_count; List <string> method_names = new List <string>(); for (var i = typeDef.methodStart; i < methodEnd; ++i) { var methodDef = metadata.methodDefs[i]; ulong fixedMethodPointer = 0; var methodPointer = il2Cpp.GetMethodPointer(imageName, methodDef); if (methodPointer > 0) { fixedMethodPointer = il2Cpp.GetRVA(methodPointer); } methods_decl += " "; methods_def += " "; var methodReturnType = il2Cpp.types[methodDef.returnType]; types.Add(methodReturnType); var methodName = metadata.GetStringFromIndex(methodDef.nameIndex); methodName = deobfu(methodName); methodName = methodName.Replace(".", ""); methodName = clear_name(methodName); var original_method_name = methodName; int name_count = method_names.Where(x => x.Equals(original_method_name)).Count(); if (name_count > 0) { methodName += name_count.ToString(); } method_names.Add(original_method_name); var is_generic_method = false; var comment = ""; if (methodDef.genericContainerIndex >= 0) { var genericContainer = metadata.genericContainers[methodDef.genericContainerIndex]; is_generic_method = true; //methodName = "// " + methodName + executor.GetGenericContainerParams(genericContainer); comment = "// "; } if (methodReturnType.byref == 1) { methods_decl += "/*ref*/ "; } var methodReturnTypeName = executor.GetTypeName(methodReturnType, true, false); methods_decl += comment + $"{methodReturnTypeName} {methodName}("; methods_def += comment + $"{methodReturnTypeName} {typeName}::{methodName}("; // rva //methods_rva += $"\n method_rva({executor.GetTypeDefName(typeDef, true, true)}::{methodName}, 0x{fixedMethodPointer:X})"; var rvamethod_name = $"{ executor.GetTypeDefName(typeDef, true, true) }::{methodName}"; var rvamethd_adress = $"0x{fixedMethodPointer:X}"; if (fixedMethodPointer != 0) { methods_rva += "\n template<> inline uintptr_t rva<&" + rvamethod_name + "> () { return " + rvamethd_adress + "; }"; } var parameters_decl = new List <string>(); var parameters_def = new List <string>(); var parameter_names = new List <string>(); for (var j = 0; j < methodDef.parameterCount; ++j) { var parameterStr_decl = ""; var parameterStr_def = ""; var parameterDef = metadata.parameterDefs[methodDef.parameterStart + j]; var parameterName = metadata.GetStringFromIndex(parameterDef.nameIndex); parameterName = clear_name(parameterName); parameterName = deobfu(parameterName); var parameterType = il2Cpp.types[parameterDef.typeIndex]; types.Add(parameterType); var parameterTypeName = executor.GetTypeName(parameterType, true, false, true); parameterTypeName = deobfu(parameterTypeName); if (parameterTypeName == "object") { parameterTypeName = typeName + "*"; } parameter_names.Add(parameterName); if (parameterType.byref == 1) { if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) != 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) == 0) { parameterStr_decl += "/*out*/ "; } else if ((parameterType.attrs & PARAM_ATTRIBUTE_OUT) == 0 && (parameterType.attrs & PARAM_ATTRIBUTE_IN) != 0) { parameterStr_decl += "/*in*/ "; } else { parameterStr_decl += "/*ref*/ "; } } parameterStr_decl += $"{parameterTypeName} {parameterName}"; parameterStr_def += $"{parameterTypeName} {parameterName}"; if (metadata.GetParameterDefaultValueFromIndex(methodDef.parameterStart + j, out var parameterDefault) && parameterDefault.dataIndex != -1) { if (TryGetDefaultValue(parameterDefault.typeIndex, parameterDefault.dataIndex, out var value)) { parameterStr_decl += " = "; if (value is string str) { parameterStr_decl += $"\"{str.ToEscapedString()}\""; } else if (value is char c) { var v = (int)c; parameterStr_decl += $"'\\x{v:x}'"; } else if (value != null) { value = cpp_value(value.ToString()); parameterStr_decl += $"{parameterTypeName}({value})"; } } else { parameterStr_decl += $" /*Metadata offset 0x{value:X}*/"; } } parameters_decl.Add(parameterStr_decl); parameters_def.Add(parameterStr_def); } var methodCall = $"return method_call({methodName}, {string.Join(", ", parameter_names)}); "; if (parameter_names.Count() == 0) { methodCall = $"return method_call({methodName}); "; } methods_decl += string.Join(", ", parameters_decl); methods_decl += ");"; methods_decl += $" // 0x{fixedMethodPointer:X} // "; methods_decl += GetModifiers(methodDef); methods_decl += "\n"; methods_def += string.Join(", ", parameters_def); methods_def += ") { " + methodCall + "} "; methods_def += $" // 0x{fixedMethodPointer:X} // "; methods_def += "\n"; } } // headers foreach (Il2CppType type in types) { if (!((int)type.type < 0x0e || type.type == Il2CppTypeEnum.IL2CPP_TYPE_MVAR || type.type == Il2CppTypeEnum.IL2CPP_TYPE_VAR || type.type == Il2CppTypeEnum.IL2CPP_TYPE_I || type.type == Il2CppTypeEnum.IL2CPP_TYPE_U)) { if (executor.GetTypeName(type, false, true) != typeName) { hpp_includes.Add(header_include(type) + "\n"); } /* * if ((int)type.type != 0x1c && (int)type.type != 0x18 && (int)type.type != 0x19 && (int)type.type != 0x1e) * cpp_includes.Add($"#include <{include_path(type)}.hpp>\n"); * * if (is_generic || (type.type == Il2CppTypeEnum.IL2CPP_TYPE_GENERICINST || type.type == Il2CppTypeEnum.IL2CPP_TYPE_VALUETYPE)) * hpp_includes.Add($"\n#include <{include_path(type)}.hpp>\n"); * else if (executor.GetTypeName(type, false, true) != typeName) * { * var fwd = fwd_decl(type); * if (fwd != "") hpp_includes.Add(fwd + "\n"); * }*/ } } foreach (string include in hpp_includes) { hpp_headers += include; } foreach (string include in cpp_includes) { cpp_headers += include; } meta_statics = "namespace ark\n{\ntemplate<>\nstruct meta_statics<" + fullTypeName + ">\n{" + meta_statics + "\n};\n} // ark\n"; if (is_interface || is_generic) { meta_statics = ""; statics_def = ""; methods_rva = ""; } // hpp hpp_writer.Write("//" + file_path + "\n#pragma once\n#include <ark/class.hpp>\n"); hpp_writer.Write(hpp_headers + "\n"); if (namespaze != "") { hpp_writer.Write("\nnamespace " + namespaze + " {\n"); } hpp_writer.Write(klass + klass_inerhit + "\n{\n" + klass_meta + "\n"); hpp_writer.Write(fields); hpp_writer.Write(methods_decl); hpp_writer.Write("\n};\n"); if (namespaze != "") { hpp_writer.Write("\n} // ns"); } hpp_writer.Write("\n\n"); hpp_writer.Write(meta_statics); hpp_writer.Write("\n\nnamespace ark::method_info \n{"); hpp_writer.Write(methods_rva); hpp_writer.Write("\n} // ark::method_info"); hpp_writer.Close(); if (!is_generic) { cpp_writer.Write("#include <" + file_path + ".hpp>\n"); cpp_writer.Write(cpp_headers); if (namespaze != "") { cpp_writer.Write("\nnamespace " + namespaze + " {\n"); } cpp_writer.Write(methods_def); if (namespaze != "") { cpp_writer.Write("\n}\n\n"); } cpp_writer.Write(statics_def); cpp_writer.Close(); } } } catch (Exception e) { Console.WriteLine("ERROR: Some errors in dumping " + e.Message + " (" + typeName + ")"); } } }
private void DumpField(StreamWriter writer, Il2CppTypeDefinition typeDef, int idx) { writer.Write("\t// Fields\n"); var fieldEnd = typeDef.fieldStart + typeDef.field_count; for (var i = typeDef.fieldStart; i < fieldEnd; ++i) { 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 str) { writer.Write($" = \"{ToEscapedString(str)}\""); } else if (multi is char c) { var v = (int)c; writer.Write($" = '\\x{v: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"); }