dataset.hpp

Go to the documentation of this file.

/*
 *  Copyright (c) 2016, The OpenThread Authors.
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *  3. Neither the name of the copyright holder nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef MESHCOP_DATASET_HPP_
#define MESHCOP_DATASET_HPP_

#include "openthread-core-config.h"

#include "common/locator.hpp"
#include "common/message.hpp"
#include "meshcop/meshcop_tlvs.hpp"

namespace ot {
namespace MeshCoP {

class Dataset
{
    friend class DatasetLocal;

public:
    enum
    {
        kMaxSize = 256,      
        kMaxValueSize = 16,  
    };

    Dataset(const Tlv::Type aType);

    void Clear(void);

    Tlv *Get(Tlv::Type aType);

    const Tlv *Get(Tlv::Type aType) const;

    const uint8_t *GetBytes(void) const { return mTlvs; }

    void Get(otOperationalDataset &aDataset) const;

    uint16_t GetSize(void) const { return mLength; }

    uint32_t GetUpdateTime(void) const { return mUpdateTime; }

    const Timestamp *GetTimestamp(void) const;

    void SetTimestamp(const Timestamp &aTimestamp);

    otError Set(const Tlv &aTlv);

    otError Set(const Message &aMessage, uint16_t aOffset, uint8_t aLength);

    otError Set(const Dataset &aDataset);

#if OPENTHREAD_FTD

    otError Set(const otOperationalDataset &aDataset);
#endif

    void Remove(Tlv::Type aType);

    otError AppendMleDatasetTlv(Message &aMessage) const;

private:
    uint16_t GetSettingsKey(void);

    void Remove(uint8_t *aStart, uint8_t aLength);

    uint8_t    mTlvs[kMaxSize];  
    uint32_t   mUpdateTime;      
    uint16_t   mLength;          
    Tlv::Type  mType;            
};

}  // namespace MeshCoP
}  // namespace ot

#endif  // MESHCOP_DATASET_HPP_