Пример #1
0
		void IPNDAgent::send(const DiscoveryAnnouncement &a, const ibrcommon::vinterface &iface, const ibrcommon::vaddress &addr)
		{
			// serialize announcement
			stringstream ss; ss << a;
			const std::string data = ss.str();

			ibrcommon::socketset fds = _send_socket.get(iface);

			// send out discovery announcements on all bound sockets
			// (hopefully only one per interface)
			for (ibrcommon::socketset::const_iterator iter = fds.begin(); iter != fds.end(); ++iter)
			{
				ibrcommon::udpsocket &sock = dynamic_cast<ibrcommon::udpsocket&>(**iter);

				try {
					// prevent broadcasting in the wrong address family
					if (addr.family() != sock.get_family()) continue;

					sock.sendto(data.c_str(), data.length(), 0, addr);
				} catch (const ibrcommon::socket_exception &e) {
					IBRCOMMON_LOGGER_DEBUG_TAG(IPNDAgent::TAG, 5) << "can not send message to " << addr.toString() << " via " << sock.get_address().toString() << "/" << iface.toString() << "; socket exception: " << e.what() << IBRCOMMON_LOGGER_ENDL;
				} catch (const ibrcommon::vaddress::address_exception &ex) {
					IBRCOMMON_LOGGER_TAG(IPNDAgent::TAG, warning) << ex.what() << IBRCOMMON_LOGGER_ENDL;
				}
			}
		}
Пример #2
0
		void IPNDAgent::join(const ibrcommon::vinterface &iface, const ibrcommon::vaddress &addr) throw ()
		{
			IBRCOMMON_LOGGER_DEBUG_TAG(TAG, 10) << "Join on " << iface.toString() << " (" << addr.toString() << ", family: " << addr.family() << ")" << IBRCOMMON_LOGGER_ENDL;

			// only join IPv6 and IPv4 addresses
			if ((addr.family() != AF_INET) && (addr.family() != AF_INET6)) return;

			// do not join on loopback interfaces
			if (addr.isLocal()) return;

			// create a multicast socket and bind to given addr
			ibrcommon::multicastsocket *msock = new ibrcommon::multicastsocket(addr);

			// if we are in UP state
			if (_state) {
				try {
					// bring up
					msock->up();

					// listen to multicast addresses
					for (std::set<ibrcommon::vaddress>::const_iterator it_addr = _destinations.begin(); it_addr != _destinations.end(); ++it_addr)
					{
                        if (msock->get_family() != it_addr->family())
                            continue;
                        
						try {
							msock->join(*it_addr, iface);
						} catch (const ibrcommon::socket_raw_error &e) {
							if (e.error() == EADDRINUSE) {
								// silent error
							} else if (e.error() == 92) {
								// silent error - protocol not available
							} else {
								IBRCOMMON_LOGGER_TAG(IPNDAgent::TAG, warning) << "Join to " << (*it_addr).toString() << " failed on " << iface.toString() << "; " << e.what() << IBRCOMMON_LOGGER_ENDL;
							}
						} catch (const ibrcommon::socket_exception &e) {
							IBRCOMMON_LOGGER_DEBUG_TAG(IPNDAgent::TAG, 10) << "Join to " << (*it_addr).toString() << " failed on " << iface.toString() << "; " << e.what() << IBRCOMMON_LOGGER_ENDL;
						}
					}
				} catch (const ibrcommon::socket_exception &ex) {
					IBRCOMMON_LOGGER_TAG(IPNDAgent::TAG, error) << "Join failed on " << iface.toString() << " (" << addr.toString() << ", family: " << addr.family() << ")" << "; " << ex.what() << IBRCOMMON_LOGGER_ENDL;
					delete msock;
					return;
				}
			}

			// add multicast socket to _socket
			_socket.add(msock, iface);
		}
Пример #3
0
		void IPNDAgent::leave(const ibrcommon::vinterface &iface, const ibrcommon::vaddress &addr) throw ()
		{
			IBRCOMMON_LOGGER_DEBUG_TAG(TAG, 10) << "Leave " << iface.toString() << " (" << addr.toString() << ", family: " << addr.family() << ")" << IBRCOMMON_LOGGER_ENDL;

			// get all sockets bound to the given interface
			ibrcommon::socketset ifsocks = _socket.get(iface);

			for (ibrcommon::socketset::iterator it = ifsocks.begin(); it != ifsocks.end(); ++it)
			{
				ibrcommon::multicastsocket *msock = dynamic_cast<ibrcommon::multicastsocket*>(*it);
				if (msock == NULL) continue;

				if (msock->get_address() == addr) {
					// remove the socket
					_socket.remove(msock);

					// shutdown the socket
					try {
						msock->down();
					} catch (const ibrcommon::socket_exception &ex) {
						IBRCOMMON_LOGGER_DEBUG_TAG(IPNDAgent::TAG, 10) << "leave failed: " << ex.what() << IBRCOMMON_LOGGER_ENDL;
					}

					// delete the socket
					delete msock;

					return;
				}
			}
		}
Пример #4
0
		void IPNDAgent::join(const ibrcommon::vinterface &iface, const ibrcommon::vaddress &addr) throw ()
		{
			// only join IPv6 and IPv4 addresses
			if ((addr.family() != AF_INET) && (addr.family() != AF_INET6)) return;

			// do not join on loopback interfaces
			if (addr.isLocal()) return;

			// create a multicast socket and bind to given addr
			ibrcommon::multicastsocket *msock = new ibrcommon::multicastsocket(addr);

			try {
				// bring up
				msock->up();

				// add multicast socket to _socket
				_socket.add(msock, iface);
			} catch (const ibrcommon::socket_exception &ex) {
				IBRCOMMON_LOGGER_TAG(IPNDAgent::TAG, error) << "Can not send on " << iface.toString() << " (" << addr.toString() << ", family: " << addr.family() << ")" << "; " << ex.what() << IBRCOMMON_LOGGER_ENDL;
				delete msock;
			}
		}