From 595ee5aa98d8c454eef7d55e45138025ff9955ad Mon Sep 17 00:00:00 2001
From: Malte Granderath <malte.granderath+github@gmail.com>
Date: Tue, 22 Jun 2021 09:41:30 +0200
Subject: [PATCH] Adding TCPKeepAlive to makeDataOpt (#1272)

---
 msg_helpers.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/msg_helpers.go b/msg_helpers.go
index 472ada5d..97c1b5ee 100644
--- a/msg_helpers.go
+++ b/msg_helpers.go
@@ -462,6 +462,8 @@ func makeDataOpt(code uint16) EDNS0 {
 		return new(EDNS0_PADDING)
 	case EDNS0EDE:
 		return new(EDNS0_EDE)
+	case EDNS0TCPKEEPALIVE:
+		return new(EDNS0_TCP_KEEPALIVE)
 	default:
 		e := new(EDNS0_LOCAL)
 		e.Code = code