From 04ff0df29a0c942eb8737fc70a0c7d92d091612a Mon Sep 17 00:00:00 2001
From: Jonathan Hui <jonhui@nestlabs.com>
Date: Sun, 15 Jan 2017 08:30:37 -0800
Subject: [PATCH] Send Close Notify message in response to a Fatal Alert.
 (#1153)

---
 src/core/meshcop/dtls.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/meshcop/dtls.cpp b/src/core/meshcop/dtls.cpp
index a5dc1074c..ab706a2ff 100644
--- a/src/core/meshcop/dtls.cpp
+++ b/src/core/meshcop/dtls.cpp
@@ -409,6 +409,7 @@ void Dtls::Process(void)
                 break;
 
             case MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE:
+                mbedtls_ssl_close_notify(&mSsl);
                 ExitNow(shouldClose = true);
                 break;