DTLSSocketWrapper.h

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/** @file DTLSSocketWrapper.h DTLSSocketWrapper */
/*
 * 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.
 */
/** @addtogroup NetSocket
* @{
*/
 
#ifndef DTLSSOCKETWRAPPER_H
#define DTLSSOCKETWRAPPER_H
 
#include "TLSSocketWrapper.h"
#include "rtos/Kernel.h"
 
// This class requires Mbed TLS SSL/TLS client code
#if defined(MBEDTLS_SSL_CLI_C) || defined(DOXYGEN_ONLY)
 
/**
 * \brief DTLSSocketWrapper implement DTLS stream over the existing Socket transport.
 */
class DTLSSocketWrapper : public TLSSocketWrapper {
public:
    /** Create a DTLSSocketWrapper.
     *
     * @param transport    Underlying transport socket to wrap.
     * @param hostname     Hostname of the remote host, used for certificate checking.
     * @param control      Transport control mode. See @ref control_transport.
     */
    DTLSSocketWrapper(Socket *transport, const char *hostname = NULL, control_transport control = TRANSPORT_CONNECT_AND_CLOSE);
 
    /** Destroy a socket wrapper.
     *
     *  Closes socket wrapper if the socket wrapper is still opened.
     */
    ~DTLSSocketWrapper();
 
    nsapi_error_t close() override;
private:
    static void timing_set_delay(void *ctx, uint32_t int_ms, uint32_t fin_ms);
    static int timing_get_delay(void *ctx);
    void timer_event();
    rtos::Kernel::Clock::time_point _int_time;
    int _timer_event_id = 0;
    bool _timer_expired = false;
};
 
#endif
#endif
/** @} */