Exemple #1
0
 public PlusSearch(PE.PE pe, int methodCount, int typeDefinitionsCount, long maxMetadataUsages)
 {
     _pe = pe;
     this.methodCount          = methodCount;
     this.typeDefinitionsCount = typeDefinitionsCount;
     this.maxMetadataUsages    = maxMetadataUsages;
 }
 internal static void MapGlobalIdentifiers(Il2CppMetadata metadata, PE.PE cppAssembly)
 {
     //Type references
     TypeRefs = metadata.metadataUsageDic[1]
                .Select(kvp => new { kvp, type = cppAssembly.types[kvp.Value] })
                .Select(t => new GlobalIdentifier
     {
         Name           = LibCpp2ILUtils.GetTypeName(metadata, cppAssembly, t.type, true),
         Value          = LibCpp2ILUtils.GetTypeReflectionData(t.type) !,
         Offset         = cppAssembly.metadataUsages[t.kvp.Key],
         IdentifierType = GlobalIdentifier.Type.TYPEREF
     }).ToList();
Exemple #3
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        internal static string GetGenericTypeParamNames(Il2CppMetadata metadata, PE.PE cppAssembly, Il2CppGenericInst genericInst)
        {
            var typeNames = new List <string>();
            var pointers  = cppAssembly.ReadClassArrayAtVirtualAddress <ulong>(genericInst.pointerStart, (long)genericInst.pointerCount);

            for (uint i = 0; i < genericInst.pointerCount; ++i)
            {
                var oriType = cppAssembly.GetIl2CppTypeFromPointer(pointers[i]);
                typeNames.Add(GetTypeName(metadata, cppAssembly, oriType));
            }

            return($"<{string.Join(", ", typeNames)}>");
        }
Exemple #4
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        internal static string GetTypeName(Il2CppMetadata metadata, PE.PE cppAssembly, Il2CppTypeDefinition typeDef, bool fullName = false)
        {
            var ret = string.Empty;

            if (fullName)
            {
                ret = typeDef.Namespace;
                if (ret != string.Empty)
                {
                    ret += ".";
                }
            }

            if (typeDef.declaringTypeIndex != -1)
            {
                ret += GetTypeName(metadata, cppAssembly, cppAssembly.types[typeDef.declaringTypeIndex]) + ".";
            }

            ret += metadata.GetStringFromIndex(typeDef.nameIndex);
            var names = new List <string>();

            if (typeDef.genericContainerIndex < 0)
            {
                return(ret);
            }

            var genericContainer = metadata.genericContainers[typeDef.genericContainerIndex];

            for (var i = 0; i < genericContainer.type_argc; i++)
            {
                var genericParameterIndex = genericContainer.genericParameterStart + i;
                var param = metadata.genericParameters[genericParameterIndex];
                names.Add(metadata.GetStringFromIndex(param.nameIndex));
            }

            ret  = ret.Replace($"`{genericContainer.type_argc}", "");
            ret += $"<{string.Join(", ", names)}>";

            return(ret);
        }
Exemple #5
0
        internal static object?GetDefaultValue(int dataIndex, int typeIndex, Il2CppMetadata metadata, PE.PE theDll)
        {
            var pointer = metadata.GetDefaultValueFromIndex(dataIndex);

            if (pointer <= 0)
            {
                return(null);
            }

            var defaultValueType = theDll.types[typeIndex];

            metadata.Position = pointer;
            switch (defaultValueType.type)
            {
            case Il2CppTypeEnum.IL2CPP_TYPE_BOOLEAN:
                return(metadata.ReadBoolean());

            case Il2CppTypeEnum.IL2CPP_TYPE_U1:
                return(metadata.ReadByte());

            case Il2CppTypeEnum.IL2CPP_TYPE_I1:
                return(metadata.ReadSByte());

            case Il2CppTypeEnum.IL2CPP_TYPE_CHAR:
                return(BitConverter.ToChar(metadata.ReadBytes(2), 0));

            case Il2CppTypeEnum.IL2CPP_TYPE_U2:
                return(metadata.ReadUInt16());

            case Il2CppTypeEnum.IL2CPP_TYPE_I2:
                return(metadata.ReadInt16());

            case Il2CppTypeEnum.IL2CPP_TYPE_U4:
                return(metadata.ReadUInt32());

            case Il2CppTypeEnum.IL2CPP_TYPE_I4:
                return(metadata.ReadInt32());

            case Il2CppTypeEnum.IL2CPP_TYPE_U8:
                return(metadata.ReadUInt64());

            case Il2CppTypeEnum.IL2CPP_TYPE_I8:
                return(metadata.ReadInt64());

            case Il2CppTypeEnum.IL2CPP_TYPE_R4:
                return(metadata.ReadSingle());

            case Il2CppTypeEnum.IL2CPP_TYPE_R8:
                return(metadata.ReadDouble());

            case Il2CppTypeEnum.IL2CPP_TYPE_STRING:
                var len = metadata.ReadInt32();
                return(Encoding.UTF8.GetString(metadata.ReadBytes(len)));

            default:
                return(null);
            }
        }
Exemple #6
0
        public static string GetTypeName(Il2CppMetadata metadata, PE.PE cppAssembly, Il2CppType type, bool fullName = false)
        {
            string ret;

            switch (type.type)
            {
            case Il2CppTypeEnum.IL2CPP_TYPE_CLASS:
            case Il2CppTypeEnum.IL2CPP_TYPE_VALUETYPE:
            {
                var typeDef = metadata.typeDefs[type.data.classIndex];
                ret = string.Empty;

                ret += GetTypeName(metadata, cppAssembly, typeDef, fullName);
                break;
            }

            case Il2CppTypeEnum.IL2CPP_TYPE_GENERICINST:
            {
                var genericClass = cppAssembly.ReadClassAtVirtualAddress <Il2CppGenericClass>(type.data.generic_class);
                var typeDef      = metadata.typeDefs[genericClass.typeDefinitionIndex];
                ret = metadata.GetStringFromIndex(typeDef.nameIndex);
                var genericInst = cppAssembly.ReadClassAtVirtualAddress <Il2CppGenericInst>(genericClass.context.class_inst);
                ret  = ret.Replace($"`{genericInst.pointerCount}", "");
                ret += GetGenericTypeParamNames(metadata, cppAssembly, genericInst);
                break;
            }

            case Il2CppTypeEnum.IL2CPP_TYPE_VAR:
            case Il2CppTypeEnum.IL2CPP_TYPE_MVAR:
            {
                var param = metadata.genericParameters[type.data.genericParameterIndex];
                ret = metadata.GetStringFromIndex(param.nameIndex);
                break;
            }

            case Il2CppTypeEnum.IL2CPP_TYPE_ARRAY:
            {
                var arrayType = cppAssembly.ReadClassAtVirtualAddress <Il2CppArrayType>(type.data.array);
                var oriType   = cppAssembly.GetIl2CppTypeFromPointer(arrayType.etype);
                ret = $"{GetTypeName(metadata, cppAssembly, oriType)}[{new string(',', arrayType.rank - 1)}]";
                break;
            }

            case Il2CppTypeEnum.IL2CPP_TYPE_SZARRAY:
            {
                var oriType = cppAssembly.GetIl2CppTypeFromPointer(type.data.type);
                ret = $"{GetTypeName(metadata, cppAssembly, oriType)}[]";
                break;
            }

            case Il2CppTypeEnum.IL2CPP_TYPE_PTR:
            {
                var oriType = cppAssembly.GetIl2CppTypeFromPointer(type.data.type);
                ret = $"{GetTypeName(metadata, cppAssembly, oriType)}*";
                break;
            }

            default:
                ret = TypeString[(int)type.type];
                break;
            }

            return(ret);
        }