diff --git a/vendor/github.com/jcmturner/rpc/v2/ndr/rawbytes.go b/vendor/github.com/jcmturner/rpc/v2/ndr/rawbytes.go
new file mode 100644
index 0000000..9ee59fb
--- /dev/null
+++ b/vendor/github.com/jcmturner/rpc/v2/ndr/rawbytes.go
@@ -0,0 +1,61 @@
+package ndr
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strconv"
+)
+
+// type MyBytes []byte
+// implement RawBytes interface
+
+const (
+	sizeMethod = "Size"
+)
+
+// RawBytes interface should be implemented if reading just a number of bytes from the NDR stream
+type RawBytes interface {
+	Size(interface{}) int
+}
+
+func rawBytesSize(parent reflect.Value, v reflect.Value) (int, error) {
+	sf := v.MethodByName(sizeMethod)
+	if !sf.IsValid() {
+		return 0, fmt.Errorf("could not find a method called %s on the implementation of RawBytes", sizeMethod)
+	}
+	in := []reflect.Value{parent}
+	f := sf.Call(in)
+	if f[0].Kind() != reflect.Int {
+		return 0, errors.New("the RawBytes size function did not return an integer")
+	}
+	return int(f[0].Int()), nil
+}
+
+func addSizeToTag(parent reflect.Value, v reflect.Value, tag reflect.StructTag) (reflect.StructTag, error) {
+	size, err := rawBytesSize(parent, v)
+	if err != nil {
+		return tag, err
+	}
+	ndrTag := parseTags(tag)
+	ndrTag.Map["size"] = strconv.Itoa(size)
+	return ndrTag.StructTag(), nil
+}
+
+func (dec *Decoder) readRawBytes(v reflect.Value, tag reflect.StructTag) error {
+	ndrTag := parseTags(tag)
+	sizeStr, ok := ndrTag.Map["size"]
+	if !ok {
+		return errors.New("size tag not available")
+	}
+	size, err := strconv.Atoi(sizeStr)
+	if err != nil {
+		return fmt.Errorf("size not valid: %v", err)
+	}
+	b, err := dec.readBytes(size)
+	if err != nil {
+		return err
+	}
+	v.Set(reflect.ValueOf(b).Convert(v.Type()))
+	return nil
+}