yeah i should have done this before, i know

packets/serialize.go

@@ -0,0 +1,20 @@
+package packets
+
+import (
+	"github.com/google/gopacket"
+)
+
+func Serialize(layers ...gopacket.SerializableLayer) (error, []byte) {
+	// Set up buffer and options for serialization.
+	buf := gopacket.NewSerializeBuffer()
+	opts := gopacket.SerializeOptions{
+		FixLengths:       true,
+		ComputeChecksums: true,
+	}
+
+	if err := gopacket.SerializeLayers(buf, opts, layers...); err != nil {
+		return err, nil
+	}
+
+	return nil, buf.Bytes()
+}