folder structure to prepare eap in eap

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

internal/outpost/radius/eap/protocol/legacy_nak/payload.go

@@ -0,0 +1,37 @@
+package legacy_nak
+
+import "goauthentik.io/internal/outpost/radius/eap/protocol"
+
+const TypeLegacyNAK protocol.Type = 3
+
+func Protocol() protocol.Payload {
+	return &Payload{}
+}
+
+type Payload struct {
+	DesiredType protocol.Type
+}
+
+func (ln *Payload) Type() protocol.Type {
+	return TypeLegacyNAK
+}
+
+func (ln *Payload) Decode(raw []byte) error {
+	ln.DesiredType = protocol.Type(raw[0])
+	return nil
+}
+
+func (ln *Payload) Encode() ([]byte, error) {
+	return []byte{byte(ln.DesiredType)}, nil
+}
+
+func (ln *Payload) Handle(ctx protocol.Context) protocol.Payload {
+	if ctx.IsProtocolStart() {
+		ctx.EndInnerProtocol(protocol.StatusError, nil)
+	}
+	return nil
+}
+
+func (ln *Payload) Offerable() bool {
+	return false
+}