KeyExchangeData.h

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/*
 * KeyExchangeData.h
 *
 * Copyright (C) 2014 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *             Thomas Schrader <schrader.thomas@gmail.com>
 *
 * 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.
 *
 */

#ifndef KEYEXCHANGEDATA_H_
#define KEYEXCHANGEDATA_H_

#include "security/exchange/KeyExchangeSession.h"

#include <string>
#include <sstream>
#include <iostream>

namespace dtn
{
        namespace security
        {

                class KeyExchangeData : public std::stringstream
                {
                        public:
                                enum Action
                                {
                                        START = 0,
                                        REQUEST = 1,
                                        RESPONSE = 2,
                                        COMPLETE = 3,
                                        PASSWORD_REQUEST = 4,
                                        WRONG_PASSWORD = 5,
                                        HASH_COMMIT = 6,
                                        NEWKEY_FOUND = 7,
                                        ERROR = 8
                                };

                                KeyExchangeData();
                                KeyExchangeData(const Action action, const KeyExchangeSession &session);
                                KeyExchangeData(const Action action, const int protocol);
                                virtual ~KeyExchangeData();

                                KeyExchangeData(const KeyExchangeData&);

                                KeyExchangeData& operator=(const KeyExchangeData&);

                                int getProtocol() const;
                                void setProtocol(int protocol);

                                Action getAction() const;
                                void setAction(Action action);

                                void setSession(const KeyExchangeSession &session);
                                void setSessionId(unsigned int sessionId);
                                unsigned int getSessionId() const;

                                int getStep() const;
                                void setStep(int step);

                                friend std::ostream &operator<<(std::ostream &stream, const KeyExchangeData &obj);
                                friend std::istream &operator>>(std::istream &stream, KeyExchangeData &obj);

                                std::string toString() const;

                        private:
                                unsigned int _session_id;
                                Action _action;
                                int _protocol;
                                int _step;
                };

        } /* namespace security */
} /* namespace dtn */
#endif /* KEYEXCHANGEDATA_H_ */