From 160ef467e64d6573ba725655494dc1bd07c5ff2a Mon Sep 17 00:00:00 2001
From: Jonathan Hui <jonhui@google.com>
Date: Wed, 13 Mar 2019 23:20:56 -0700
Subject: [PATCH] [dtls] handle MBEDTLS_ERR_PEM_ALLOC_FAILED in
 Dtls::MapError() (#3674)

---
 src/core/meshcop/dtls.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core/meshcop/dtls.cpp b/src/core/meshcop/dtls.cpp
index 374726e2d..ddd978c5e 100644
--- a/src/core/meshcop/dtls.cpp
+++ b/src/core/meshcop/dtls.cpp
@@ -36,6 +36,9 @@
 #include "dtls.hpp"
 
 #include <mbedtls/debug.h>
+#ifdef MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
+#include <mbedtls/pem.h>
+#endif
 #include <openthread/platform/radio.h>
 
 #include "common/code_utils.hpp"
@@ -964,6 +967,7 @@ otError Dtls::MapError(int rval)
         break;
 
 #ifdef MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
+    case MBEDTLS_ERR_PEM_ALLOC_FAILED:
     case MBEDTLS_ERR_PK_ALLOC_FAILED:
     case MBEDTLS_ERR_X509_BUFFER_TOO_SMALL:
     case MBEDTLS_ERR_X509_ALLOC_FAILED: