添加 github.com/pion/dtls 代码

dtls-2.0.9/pkg/protocol/handshake/message_server_hello_done.go

@@ -0,0 +1,22 @@
+package handshake
+
+// MessageServerHelloDone is final non-encrypted message from server
+// this communicates server has sent all its handshake messages and next
+// should be MessageFinished
+type MessageServerHelloDone struct {
+}
+
+// Type returns the Handshake Type
+func (m MessageServerHelloDone) Type() Type {
+	return TypeServerHelloDone
+}
+
+// Marshal encodes the Handshake
+func (m *MessageServerHelloDone) Marshal() ([]byte, error) {
+	return []byte{}, nil
+}
+
+// Unmarshal populates the message from encoded data
+func (m *MessageServerHelloDone) Unmarshal(data []byte) error {
+	return nil
+}