1 | #include "Udp.h" |
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2 | |
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3 | using namespace std; |
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4 | |
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5 | udp_server::~udp_server() |
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6 | { |
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7 | } |
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8 | |
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9 | void udp_server::listen_on(uint16_t port) |
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10 | { |
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11 | std::cout << "[UDP] listening on port: " << port << std::endl; |
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12 | |
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13 | socket_.open(udp::v4()); |
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14 | socket_.bind(udp::endpoint(udp::v4(), port)); |
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15 | start_receive(); |
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16 | } |
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17 | |
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18 | void udp_server::connect_to(uint16_t port) |
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19 | { |
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20 | std::cout << "[UDP] connecting to port: " << port << " (on localhost)" << std::endl; |
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21 | |
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22 | remote_endpoint_ = udp::endpoint(boost::asio::ip::address::from_string("127.0.0.1"), port); |
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23 | |
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24 | socket_.open(udp::v4()); |
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25 | socket_.connect(remote_endpoint_); |
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26 | start_receive(); |
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27 | } |
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28 | |
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29 | |
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30 | /* MessageSenderInterface */ |
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31 | void udp_server::SendMessage(reboost::shared_buffer_t msg) |
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32 | { |
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33 | cout << "[UDP] sending " << msg.size() << " bytes to " << remote_endpoint_ << endl; |
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34 | |
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35 | // send over udp |
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36 | socket_.async_send_to( |
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37 | boost::asio::buffer(msg.data(), msg.size()), |
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38 | remote_endpoint_, |
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39 | boost::bind(&udp_server::handle_send, this, msg, |
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40 | boost::asio::placeholders::error, |
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41 | boost::asio::placeholders::bytes_transferred)); |
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42 | } |
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43 | void udp_server::SendMessage(reboost::message_t msg) |
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44 | { |
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45 | reboost::shared_buffer_t buf = msg.linearize(); |
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46 | this->SendMessage(buf); |
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47 | } |
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48 | |
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49 | |
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50 | |
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51 | /* asio udp */ |
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52 | void udp_server::start_receive() |
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53 | { |
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54 | recv_buffer_ = reboost::shared_buffer_t(3000); |
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55 | |
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56 | socket_.async_receive_from( |
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57 | boost::asio::buffer(recv_buffer_.mutable_data(), recv_buffer_.size()), |
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58 | remote_endpoint_, |
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59 | boost::bind(&udp_server::handle_receive, this, |
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60 | boost::asio::placeholders::error, |
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61 | boost::asio::placeholders::bytes_transferred)); |
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62 | } |
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63 | |
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64 | void udp_server::handle_receive(const boost::system::error_code& error, std::size_t bytes_transferred) |
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65 | { |
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66 | if (!error || error == boost::asio::error::message_size) |
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67 | { |
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68 | cout << "[UDP] received " << bytes_transferred << " bytes from " << remote_endpoint_ << endl; |
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69 | |
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70 | // send sub-buffer trough tunnel |
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71 | send_via_ariba( recv_buffer_(0, bytes_transferred) ); |
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72 | |
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73 | // wait for further messages... |
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74 | start_receive(); |
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75 | } |
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76 | } |
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77 | |
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78 | void udp_server::handle_send(reboost::shared_buffer_t msg, const boost::system::error_code& , std::size_t ) |
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79 | { |
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80 | // empty |
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81 | } |
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82 | |
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83 | |
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84 | /// forward data over ariba |
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85 | void udp_server::send_via_ariba(reboost::shared_buffer_t buffer) |
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86 | { |
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87 | tunnel.SendMessage(buffer); |
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88 | } |
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