v1.0.0

transport/internet/headers/utp/utp.go

@@ -0,0 +1,39 @@
+package utp
+
+import (
+	"context"
+	"encoding/binary"
+
+	"github.com/xtls/xray-core/v1/common"
+	"github.com/xtls/xray-core/v1/common/dice"
+)
+
+type UTP struct {
+	header       byte
+	extension    byte
+	connectionID uint16
+}
+
+func (*UTP) Size() int32 {
+	return 4
+}
+
+// Serialize implements PacketHeader.
+func (u *UTP) Serialize(b []byte) {
+	binary.BigEndian.PutUint16(b, u.connectionID)
+	b[2] = u.header
+	b[3] = u.extension
+}
+
+// New creates a new UTP header for the given config.
+func New(ctx context.Context, config interface{}) (interface{}, error) {
+	return &UTP{
+		header:       1,
+		extension:    0,
+		connectionID: dice.RollUint16(),
+	}, nil
+}
+
+func init() {
+	common.Must(common.RegisterConfig((*Config)(nil), New))
+}