DiscoveryAnnouncement.h

Go to the documentation of this file.

/*
 * DiscoveryAnnouncement.h
 *
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * 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 DISCOVERYANNOUNCEMENT_H_
#define DISCOVERYANNOUNCEMENT_H_

#include <ibrdtn/data/SDNV.h>
#include <ibrdtn/data/EID.h>
#include <ibrdtn/data/BundleString.h>
#include "net/DiscoveryService.h"
#include <string>
#include <list>

namespace dtn
{
        namespace net
        {
                class DiscoveryAnnouncement
                {
                        enum BEACON_FLAGS_V1
                        {
                                BEACON_NO_FLAGS = 0x00,
                                BEACON_SHORT = 0x01
                        };

                        enum BEACON_FLAGS_V2
                        {
                                BEACON_CONTAINS_EID = 0x01,
                                BEACON_SERVICE_BLOCK = 0x02,
                                BEACON_BLOOMFILTER = 0x04
                        };

                public:
                        enum DiscoveryVersion
                        {
                                DTND_IPDISCOVERY = 0x00,
                                DISCO_VERSION_00 = 0x01,
                                DISCO_VERSION_01 = 0x02
                        };

                        DiscoveryAnnouncement(const DiscoveryVersion version = DISCO_VERSION_00, dtn::data::EID eid = dtn::data::EID());

                        virtual ~DiscoveryAnnouncement();

                        void setEID(const dtn::data::EID &eid);
                        dtn::data::EID getEID() const;

                        const std::list<DiscoveryService>& getServices() const;
                        void clearServices();
                        void addService(DiscoveryService service);
                        const DiscoveryService& getService(string name) const;

                        string toString() const;

                        void setSequencenumber(uint16_t sequence);

                        bool isShort();

                private:
                        friend std::ostream &operator<<(std::ostream &stream, const DiscoveryAnnouncement &announcement);
                        friend std::istream &operator>>(std::istream &stream, DiscoveryAnnouncement &announcement);

                        unsigned int _version;
                        unsigned char _flags;
                        dtn::data::EID _canonical_eid;
                        uint16_t _sn;
                        dtn::data::BundleString _bloomfilter;

                        std::list<DiscoveryService> _services;
                };
        }
}

#endif /* DISCOVERYANNOUNCEMENT_H_ */