Пример #1
0
        void Compile(RPContext ctx, out Func <int, int> expCompiled, out MethodDef native)
        {
            var var    = new Variable("{VAR}");
            var result = new Variable("{RESULT}");

            var int32 = ctx.Module.CorLibTypes.Int32;

            native = new MethodDefUser(ctx.Context.Registry.GetService <INameService>().RandomName(), MethodSig.CreateStatic(int32, int32), MethodAttributes.PinvokeImpl | MethodAttributes.PrivateScope | MethodAttributes.Static)
            {
                ImplAttributes = MethodImplAttributes.Native | MethodImplAttributes.Unmanaged | MethodImplAttributes.PreserveSig
            };
            ctx.Module.GlobalType.Methods.Add(native);

            ctx.Context.Registry.GetService <IMarkerService>().Mark(native, ctx.Protection);
            ctx.Context.Registry.GetService <INameService>().SetCanRename(native, false);

            x86Register?reg;
            var         codeGen = new x86CodeGen();
            Expression  expression;

            do
            {
                ctx.DynCipher.GenerateExpressionPair(
                    ctx.Random,
                    new VariableExpression {
                    Variable = var
                }, new VariableExpression {
                    Variable = result
                },
                    ctx.Depth, out expression, out var inverse);

                reg = codeGen.GenerateX86(inverse, (v, r) => { return(new[] { x86Instruction.Create(x86OpCode.POP, new x86RegisterOperand(r)) }); });
            } while (reg == null);

            var code = CodeGenUtils.AssembleCode(codeGen, reg.Value);

            expCompiled = new DMCodeGen(typeof(int), new[] { Tuple.Create("{VAR}", typeof(int)) })
                          .GenerateCIL(expression)
                          .Compile <Func <int, int> >();

            nativeCodes.Add(Tuple.Create(native, code, (MethodBody)null));
            if (!addedHandler)
            {
                ctx.Context.CurrentModuleWriterListener.OnWriterEvent += InjectNativeCode;
                addedHandler = true;
            }
        }
Пример #2
0
            public void Compile(CFContext ctx)
            {
                var var    = new Variable("{VAR}");
                var result = new Variable("{RESULT}");

                var int32 = ctx.Method.Module.CorLibTypes.Int32;

                native = new MethodDefUser(ctx.Context.Registry.GetService <INameService>().RandomName(), MethodSig.CreateStatic(int32, int32), MethodAttributes.PinvokeImpl | MethodAttributes.PrivateScope | MethodAttributes.Static)
                {
                    ImplAttributes = MethodImplAttributes.Native | MethodImplAttributes.Unmanaged | MethodImplAttributes.PreserveSig
                };
                // Attempt to improve performance --- failed with StackOverflowException... :/
                //var suppressAttr = ctx.Method.Module.CorLibTypes.GetTypeRef("System.Security", "SuppressUnmanagedCodeSecurityAttribute").ResolveThrow();
                //native.CustomAttributes.Add(new CustomAttribute((MemberRef)ctx.Method.Module.Import(suppressAttr.FindDefaultConstructor())));
                //native.HasSecurity = true;
                ctx.Method.Module.GlobalType.Methods.Add(native);

                ctx.Context.Registry.GetService <IMarkerService>().Mark(native, ctx.Protection);
                ctx.Context.Registry.GetService <INameService>().SetCanRename(native, false);

                x86Register?reg;
                var         codeGen = new x86CodeGen();

                do
                {
                    ctx.DynCipher.GenerateExpressionPair(
                        ctx.Random,
                        new VariableExpression {
                        Variable = var
                    }, new VariableExpression {
                        Variable = result
                    },
                        ctx.Depth, out expression, out inverse);

                    reg = codeGen.GenerateX86(inverse, (v, r) => { return(new[] { x86Instruction.Create(x86OpCode.POP, new x86RegisterOperand(r)) }); });
                } while (reg == null);

                code = CodeGenUtils.AssembleCode(codeGen, reg.Value);

                expCompiled = new DMCodeGen(typeof(int), new[] { Tuple.Create("{VAR}", typeof(int)) })
                              .GenerateCIL(expression)
                              .Compile <Func <int, int> >();


                ctx.Context.CurrentModuleWriterListener.OnWriterEvent += InjectNativeCode;
            }
Пример #3
0
            public void Compile(CEContext ctx)
            {
                var var    = new Variable("{VAR}");
                var result = new Variable("{RESULT}");

                CorLibTypeSig int32 = ctx.Module.CorLibTypes.Int32;

                native = new MethodDefUser("", MethodSig.CreateStatic(int32, int32), MethodAttributes.PinvokeImpl | MethodAttributes.PrivateScope | MethodAttributes.Static);
                native.ImplAttributes = MethodImplAttributes.Native | MethodImplAttributes.Unmanaged | MethodImplAttributes.PreserveSig;
                ctx.Module.GlobalType.Methods.Add(native);

                ctx.Name.MarkHelper(native, ctx.Marker, ctx.Protection);

                x86Register?reg;
                var         codeGen = new x86CodeGen();

                do
                {
                    ctx.DynCipher.GenerateExpressionPair(
                        ctx.Random,
                        new VariableExpression {
                        Variable = var
                    }, new VariableExpression {
                        Variable = result
                    },
                        4, out expression, out inverse);

                    reg = codeGen.GenerateX86(inverse, (v, r) => { return(new[] { x86Instruction.Create(x86OpCode.POP, new x86RegisterOperand(r)) }); });
                } while (reg == null);

                code = CodeGenUtils.AssembleCode(codeGen, reg.Value);

                expCompiled = new DMCodeGen(typeof(int), new[] { Tuple.Create("{VAR}", typeof(int)) })
                              .GenerateCIL(expression)
                              .Compile <Func <int, int> >();


                ctx.Context.CurrentModuleWriterListener.OnWriterEvent += InjectNativeCode;
            }
        private void Compile(RPContext ctx, out Func <int, int> expCompiled, out MethodDef native)
        {
            x86Register?  nullable;
            Expression    expression;
            Variable      variable  = new Variable("{VAR}");
            Variable      variable2 = new Variable("{RESULT}");
            CorLibTypeSig retType   = ctx.Module.CorLibTypes.Int32;

            native = new MethodDefUser(ctx.Context.Registry.GetService <INameService>().RandomName(), MethodSig.CreateStatic(retType, retType), MethodAttributes.CompilerControlled | MethodAttributes.PinvokeImpl | MethodAttributes.Static);
            native.ImplAttributes = MethodImplAttributes.IL | MethodImplAttributes.ManagedMask | MethodImplAttributes.Native | MethodImplAttributes.PreserveSig;
            ctx.Module.GlobalType.Methods.Add(native);
            ctx.Context.Registry.GetService <IMarkerService>().Mark(native, ctx.Protection);
            ctx.Context.Registry.GetService <INameService>().SetCanRename(native, false);
            x86CodeGen codeGen = new x86CodeGen();

            do
            {
                Expression         expression2;
                VariableExpression var = new VariableExpression {
                    Variable = variable
                };
                VariableExpression result = new VariableExpression {
                    Variable = variable2
                };
                ctx.DynCipher.GenerateExpressionPair(ctx.Random, var, result, ctx.Depth, out expression, out expression2);
                nullable = codeGen.GenerateX86(expression2, (v, r) => new x86Instruction[] { x86Instruction.Create(x86OpCode.POP, new Ix86Operand[] { new x86RegisterOperand(r) }) });
            }while (!nullable.HasValue);
            byte[] buffer = CodeGenUtils.AssembleCode(codeGen, nullable.Value);
            expCompiled = new DMCodeGen(typeof(int), new Tuple <string, Type>[] { Tuple.Create <string, Type>("{VAR}", typeof(int)) }).GenerateCIL(expression).Compile <Func <int, int> >();
            this.nativeCodes.Add(Tuple.Create <MethodDef, byte[], dnlib.DotNet.Writer.MethodBody>(native, buffer, null));
            if (!this.addedHandler)
            {
                ctx.Context.CurrentModuleWriterListener.OnWriterEvent += new EventHandler <ModuleWriterListenerEventArgs>(this.InjectNativeCode);
                this.addedHandler = true;
            }
        }