misc: small fix or general refactoring i did not bother commenting

packets/dot11.go

@@ -0,0 +1,29 @@
+package packets
+
+import (
+	"net"
+
+	"github.com/google/gopacket/layers"
+)
+
+func NewDot11Deauth(a1 net.HardwareAddr, a2 net.HardwareAddr, a3 net.HardwareAddr, t layers.Dot11Type, reason layers.Dot11Reason, seq uint16) (error, []byte) {
+	var (
+		deauth        layers.Dot11MgmtDeauthentication
+		dot11Layer    layers.Dot11
+		radioTapLayer layers.RadioTap
+	)
+
+	deauth.Reason = reason
+
+	dot11Layer.Address1 = a1
+	dot11Layer.Address2 = a2
+	dot11Layer.Address3 = a3
+	dot11Layer.Type = t
+	dot11Layer.SequenceNumber = seq
+
+	return Serialize(
+		&radioTapLayer,
+		&dot11Layer,
+		&deauth,
+	)
+}