init

gold/head/packet.go

@@ -0,0 +1,27 @@
+package head
+
+type Packet struct {
+	Proto   uint8
+	SrcPort uint16
+	DstPort uint16
+	TTL     uint8
+	Data    []byte
+}
+
+func NewPacket(proto uint8, srcPort uint16, dstPort uint16, data []byte) *Packet {
+	return &Packet{
+		Proto:   proto,
+		SrcPort: srcPort,
+		DstPort: dstPort,
+		TTL:     255,
+		Data:    data,
+	}
+}
+
+func (p *Packet) UnMashal(data []byte) {
+
+}
+
+func (p *Packet) Mashal() []byte {
+	return nil
+}

gold/head/protos.go

@@ -0,0 +1,7 @@
+package head
+
+const (
+	ProtoHello uint8 = iota
+	ProtoHelloAck
+	ProtoData
+)