00001 // [License] 00002 // The Ariba-Underlay Copyright 00003 // 00004 // Copyright (c) 2008-2009, Institute of Telematics, Universität Karlsruhe (TH) 00005 // 00006 // Institute of Telematics 00007 // Universität Karlsruhe (TH) 00008 // Zirkel 2, 76128 Karlsruhe 00009 // Germany 00010 // 00011 // Redistribution and use in source and binary forms, with or without 00012 // modification, are permitted provided that the following conditions are 00013 // met: 00014 // 00015 // 1. Redistributions of source code must retain the above copyright 00016 // notice, this list of conditions and the following disclaimer. 00017 // 2. Redistributions in binary form must reproduce the above copyright 00018 // notice, this list of conditions and the following disclaimer in the 00019 // documentation and/or other materials provided with the distribution. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND 00022 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00023 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00024 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR 00025 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00026 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00027 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00033 // The views and conclusions contained in the software and documentation 00034 // are those of the authors and should not be interpreted as representing 00035 // official policies, either expressed or implied, of the Institute of 00036 // Telematics. 00037 // [License] 00038 00039 #ifndef __NETWORK_CHANGE_DETECTION_H 00040 #define __NETWORK_CHANGE_DETECTION_H 00041 00042 #include <cerrno> 00043 #include <csignal> 00044 #include <vector> 00045 #include <algorithm> 00046 #include <string> 00047 #include <net/if.h> 00048 #include <arpa/inet.h> 00049 #include <linux/types.h> 00050 #include <linux/netlink.h> 00051 #include <linux/rtnetlink.h> 00052 #include <sys/types.h> 00053 #include <sys/socket.h> 00054 #include <sys/ioctl.h> 00055 #include <boost/thread/mutex.hpp> 00056 #include <boost/thread/thread.hpp> 00057 #include <boost/utility.hpp> 00058 #include <boost/bind.hpp> 00059 #include "ariba/communication/networkinfo/NetworkChangeInterface.h" 00060 #include "ariba/communication/networkinfo/NetworkInformation.h" 00061 #include "ariba/utility/system/SystemQueue.h" 00062 #include "ariba/utility/logging/Logging.h" 00063 00064 using std::string; 00065 using std::vector; 00066 using std::find; 00067 using ariba::utility::SystemQueue; 00068 using ariba::utility::SystemEvent; 00069 using ariba::utility::SystemEventType; 00070 using ariba::utility::SystemEventListener; 00071 using ariba::communication::NetworkInformation; 00072 00073 namespace ariba { 00074 namespace communication { 00075 00076 class NetworkChangeDetection : public SystemEventListener { 00077 use_logging_h(NetworkChangeDetection); 00078 public: 00079 NetworkChangeDetection(); 00080 virtual ~NetworkChangeDetection(); 00081 00082 void registerNotification( NetworkChangeInterface* callback ); 00083 void unregisterNotification( NetworkChangeInterface* callback ); 00084 00085 protected: 00086 void handleSystemEvent( const SystemEvent& event ); 00087 00088 private: 00089 typedef vector<NetworkChangeInterface*> RegistrationList; 00090 RegistrationList registrations; 00091 00092 void startMonitoring(); 00093 void stopMonitoring(); 00094 00095 boost::thread* monitoringThread; 00096 volatile bool running; 00097 static void monitoringThreadFunc( NetworkChangeDetection* obj ); 00098 00099 int routingSocket; 00100 NetworkInformation networkInformation; 00101 00102 NetworkChangeInterface::NetworkChangeInfo extractInterfaceEvent( struct nlmsghdr* header ); 00103 NetworkChangeInterface::NetworkChangeInfo extractAddressEvent( struct nlmsghdr* header ); 00104 }; 00105 00106 }} // namespace ariba, communication 00107 00108 #endif // __NETWORK_CHANGE_DETECTION_H