TUN-6666: Define packet package

This package defines IP and ICMP packet, decoders, encoder and flow

vendor/github.com/google/gopacket/layers/tls_handshake.go

@@ -0,0 +1,28 @@
+// Copyright 2018 The GoPacket Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
+package layers
+
+import (
+	"github.com/google/gopacket"
+)
+
+// TLSHandshakeRecord defines the structure of a Handshare Record
+type TLSHandshakeRecord struct {
+	TLSRecordHeader
+}
+
+// DecodeFromBytes decodes the slice into the TLS struct.
+func (t *TLSHandshakeRecord) decodeFromBytes(h TLSRecordHeader, data []byte, df gopacket.DecodeFeedback) error {
+	// TLS Record Header
+	t.ContentType = h.ContentType
+	t.Version = h.Version
+	t.Length = h.Length
+
+	// TODO
+
+	return nil
+}