[4850] | 1 | // [License]
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| 2 | // The Ariba-Underlay Copyright
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| 3 | //
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| 4 | // Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
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| 5 | //
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| 6 | // Institute of Telematics
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| 7 | // UniversitÀt Karlsruhe (TH)
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| 8 | // Zirkel 2, 76128 Karlsruhe
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| 9 | // Germany
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| 10 | //
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| 11 | // Redistribution and use in source and binary forms, with or without
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| 12 | // modification, are permitted provided that the following conditions are
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| 13 | // met:
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| 14 | //
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| 15 | // 1. Redistributions of source code must retain the above copyright
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| 16 | // notice, this list of conditions and the following disclaimer.
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| 17 | // 2. Redistributions in binary form must reproduce the above copyright
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| 18 | // notice, this list of conditions and the following disclaimer in the
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| 19 | // documentation and/or other materials provided with the distribution.
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| 20 | //
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| 21 | // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
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| 22 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 24 | // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
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| 25 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 26 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 27 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 28 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 29 | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 30 | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| 31 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 32 | //
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| 33 | // The views and conclusions contained in the software and documentation
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| 34 | // are those of the authors and should not be interpreted as representing
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| 35 | // official policies, either expressed or implied, of the Institute of
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| 36 | // Telematics.
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| 37 | // [License]
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| 38 |
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| 39 | #ifndef __PERIODIC_BROADCAST_H
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| 40 | #define __PERIODIC_BROADCAST_H
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| 41 |
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| 42 | #include "ariba/config.h"
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| 43 |
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[4851] | 44 | #include <map>
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| 45 | #include <string>
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[4850] | 46 | #include <iostream>
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[4853] | 47 | #include <boost/asio.hpp>
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[4851] | 48 | #include <boost/foreach.hpp>
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[4850] | 49 | #include <boost/thread/mutex.hpp>
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| 50 | #include <boost/thread/thread.hpp>
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| 51 | #include "ariba/utility/bootstrap/modules/BootstrapModule.h"
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| 52 | #include "ariba/utility/logging/Logging.h"
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| 53 | #include "ariba/utility/system/Timer.h"
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[4853] | 54 | #include "PeriodicBroadcastMessage.h"
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[4850] | 55 |
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| 56 | using std::map;
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| 57 | using std::string;
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[4853] | 58 | using boost::asio::ip::udp;
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[4850] | 59 |
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| 60 | namespace ariba {
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| 61 | namespace utility {
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| 62 |
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| 63 | class PeriodicBroadcast : public BootstrapModule, public Timer {
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| 64 | use_logging_h(PeriodicBroadcast);
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| 65 | public:
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| 66 | PeriodicBroadcast(BootstrapInformationCallback* _callback);
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| 67 | virtual ~PeriodicBroadcast();
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| 68 |
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| 69 | virtual void start();
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| 70 | virtual void stop();
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| 71 |
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| 72 | virtual string getName();
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| 73 | virtual string getInformation();
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| 74 | virtual bool isFunctional();
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| 75 | virtual void publishService(string name, string info1, string info2, string info3);
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| 76 | virtual void revokeService(string name);
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| 77 |
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| 78 | protected:
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| 79 | virtual void eventFunction();
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| 80 |
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| 81 | private:
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| 82 | void sendLocalServices();
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| 83 | void updateRemoteServices();
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| 84 |
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| 85 | static const long timerinterval;
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[4853] | 86 | static const unsigned int serverport_v4;
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| 87 | static const unsigned int serverport_v6;
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[4850] | 88 |
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| 89 | typedef struct _Service {
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| 90 | string name;
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| 91 | string info1;
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| 92 | string info2;
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| 93 | string info3;
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| 94 | } Service;
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| 95 |
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| 96 | typedef map<string,Service> ServiceList;
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| 97 | ServiceList localServices;
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| 98 | boost::mutex localServicesMutex;
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| 99 |
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[4853] | 100 | ServiceList remoteServices;
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| 101 | boost::mutex remoteServicesMutex;
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| 102 |
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| 103 | ServiceList newRemoteServices;
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| 104 | boost::mutex newRemoteServicesMutex;
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| 105 |
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| 106 | boost::asio::io_service io_service;
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| 107 |
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| 108 | class udp_server {
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| 109 | private:
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| 110 | udp::socket socket_v4;
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| 111 | udp::socket socket_v6;
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| 112 | udp::endpoint remote_endpoint_;
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| 113 | boost::array<char, 1500> recv_buffer_;
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| 114 | ServiceList* services;
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| 115 | boost::mutex* servicesmutex;
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| 116 |
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| 117 | public:
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| 118 | udp_server(boost::asio::io_service& io_service, ServiceList* _services, boost::mutex* _servicesmutex)
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| 119 | : socket_v4(io_service, udp::endpoint(udp::v4(), PeriodicBroadcast::serverport_v4)),
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| 120 | socket_v6(io_service, udp::endpoint(udp::v6(), PeriodicBroadcast::serverport_v6)),
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| 121 | services(_services), servicesmutex(_servicesmutex) {
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| 122 |
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| 123 | boost::asio::socket_base::broadcast option(true);
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| 124 | socket_v4.set_option(option);
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| 125 | socket_v6.set_option(option);
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| 126 |
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| 127 | start_receive();
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| 128 | }
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| 129 |
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| 130 | void sendservice(Service service){
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| 131 |
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| 132 | PeriodicBroadcastMessage msg( service.name, service.info1, service.info2, service.info3 );
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| 133 | Data data = data_serialize( msg, DEFAULT_V );
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| 134 | uint8_t* pnt = data.getBuffer();
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| 135 | size_t len = data.getLength();
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| 136 | boost::system::error_code ignored_error;
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| 137 |
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| 138 | {
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| 139 | udp::endpoint endp(udp::v4(), PeriodicBroadcast::serverport_v4);
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| 140 | endp.address( boost::asio::ip::address_v4::broadcast() );
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| 141 | socket_v4.send_to( boost::asio::buffer(pnt, len), endp, 0, ignored_error );
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| 142 | }
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| 143 | {
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| 144 | udp::endpoint endp(udp::v6(), PeriodicBroadcast::serverport_v6);
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| 145 | endp.address( boost::asio::ip::address_v6::from_string("ff02::1") );
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| 146 | socket_v6.send_to( boost::asio::buffer(pnt, len), endp, 0, ignored_error );
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| 147 | }
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| 148 | }
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| 149 |
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| 150 | private:
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| 151 | void start_receive(){
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| 152 | socket_v4.async_receive_from(
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| 153 | boost::asio::buffer(recv_buffer_), remote_endpoint_,
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| 154 | boost::bind(&udp_server::handle_receive, this,
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| 155 | boost::asio::placeholders::error,
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| 156 | boost::asio::placeholders::bytes_transferred));
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| 157 |
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| 158 | socket_v6.async_receive_from(
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| 159 | boost::asio::buffer(recv_buffer_), remote_endpoint_,
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| 160 | boost::bind(&udp_server::handle_receive, this,
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| 161 | boost::asio::placeholders::error,
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| 162 | boost::asio::placeholders::bytes_transferred));
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| 163 | }
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| 164 |
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| 165 | void handle_receive(const boost::system::error_code& error,
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| 166 | std::size_t bytes_transferred){
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| 167 |
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| 168 | if (!error || error == boost::asio::error::message_size){
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| 169 |
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| 170 | PeriodicBroadcastMessage msg;
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| 171 | Data data( (uint8_t*)recv_buffer_.data(), bytes_transferred*8 );
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| 172 | data_deserialize( msg, data );
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| 173 |
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| 174 | { // insert new found service
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| 175 | boost::mutex::scoped_lock( *servicesmutex );
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| 176 |
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| 177 | ServiceList::iterator it = services->find( msg.getName() );
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| 178 | if( it != services->end() ) services->erase( it );
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| 179 |
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| 180 | Service s;
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| 181 | s.info1 = msg.getInfo1();
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| 182 | s.info2 = msg.getInfo2();
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| 183 | s.info3 = msg.getInfo3();
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| 184 | services->insert( std::make_pair(msg.getName(), s) );
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| 185 | }
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| 186 |
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| 187 | start_receive();
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | void handle_send(boost::shared_ptr<std::string> /*message*/,
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| 192 | const boost::system::error_code& /*error*/,
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| 193 | std::size_t /*bytes_transferred*/){
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| 194 | }
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| 195 |
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| 196 | };
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| 197 |
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| 198 | udp_server server;
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| 199 |
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[4850] | 200 | };
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| 201 |
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| 202 | }} //namespace ariba, utility
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| 203 |
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| 204 | #endif // __BLUETOOTH_SDP_H
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