Diff: features/netsocket/DTLSSocket.cpp

Revision:

0:5b88d5760320

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/features/netsocket/DTLSSocket.cpp	Tue Dec 17 23:23:45 2019 +0000
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2018 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "DTLSSocket.h"
+
+#define TRACE_GROUP "TLSS"
+#include "mbed-trace/mbed_trace.h"
+
+// This class requires Mbed TLS SSL/TLS client code
+#if defined(MBEDTLS_SSL_CLI_C)
+
+nsapi_error_t DTLSSocket::connect(const char *host, uint16_t port)
+{
+    SocketAddress addr;
+    nsapi_error_t ret;
+
+    ret = _udp_socket.getpeername(&addr);
+    if (ret != NSAPI_ERROR_NO_CONNECTION) {
+        return ret;
+    }
+
+    if (!addr || ret == NSAPI_ERROR_NO_CONNECTION) {
+        nsapi_error_t err = _udp_socket._stack->gethostbyname(host, &addr);
+        if (err) {
+            return NSAPI_ERROR_DNS_FAILURE;
+        }
+
+        addr.set_port(port);
+
+        set_hostname(host);
+        _udp_socket.connect(addr); // UDPSocket::connect() cannot fail
+    }
+
+    return connect(addr);
+}
+
+DTLSSocket::~DTLSSocket()
+{
+    // Make sure that DTLSSocketWrapper::close() is called before the transport is
+    // destroyed.
+    close();
+}
+
+#endif // MBEDTLS_SSL_CLI_C