pana_channel.h

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/* Open Diameter: Open-source software for the Diameter and               */
/*                Diameter related protocols                              */
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#ifndef __PANA_CHANNEL_H__
#define __PANA_CHANNEL_H__

#include "pana_exceptions.h"
#include "pana_egress.h"
#include "pana_ingress.h"

#if defined(PANA_PF_ENABLED)
   #if defined(OS_LINUX)
      #include "../src/linux/packet_filter.h"
      #define PANA_Socket PANA_LinuxTransport
   #elif defined(OS_WIN32)
      #include "../src/win32/packet_filter_winpcap.h"
      #define PANA_Socket PANA_Win32Transport
   #else
      #error "No link layer transport supported"
   #endif
#else
   #include "pana_udp_transport.h"
   #include "pana_mcast_transport.h"
   typedef PANA_UdpTransport   PANA_UdpSocket;
   typedef PANA_McastTransport PANA_McastSocket;
#endif 

/*
 * PANA transport abstraction
 */
template<class SOCKET>
class PANA_EXPORT PANA_Channel : public PANA_IngressReceiver
{
    public:
        PANA_Channel(AAA_GroupedJob &g, const char *name = "") :
            PANA_IngressReceiver(g, m_Socket, name) {
        }
        PANA_Channel(AAA_GroupedJob &g, ACE_INET_Addr &addr) :
            PANA_IngressReceiver(g, m_Socket) {
            Open(addr);
        }
                virtual ~PANA_Channel() {
                        Close();
        }
        virtual void Open(ACE_INET_Addr &addr) {
            if (m_Socket.open(PANA_CONFIG_GENERAL().iface_name_, addr) < 0) {
                throw (PANA_Exception(PANA_Exception::TRANSPORT_FAILED,
                                      "Failed to open device"));
            }
            if (m_Group.Schedule(this) < 0) {
                throw (PANA_Exception(PANA_Exception::TRANSPORT_FAILED,
                                      "Failed to schedule channel"));
            }
        }
        virtual void Close() {
            m_Socket.close();
                        PANA_IngressReceiver::Wait();
        }
        virtual void Send(PANA_Message &m) {
            PANA_EgressSender egress(m_Group,
                                     m_IO,
                                     m,
                                     NULL,
                                     Name().data());
            egress.Schedule();
        }
        virtual void Send(PANA_Session &s, PANA_Message &m) {
            PANA_EgressSender egress(m_Group,
                                     m_IO,
                                     m,
                                     &s,
                                     Name().data());
            egress.Schedule();
        }
        virtual int GetLocalAddress(PANA_DeviceIdContainer &dev) {
            return m_Socket.get_local_addr(dev);
        }
    protected:
        SOCKET m_Socket;
};

typedef PANA_Channel<PANA_UdpSocket>   PANA_UdpChannel;
typedef PANA_Channel<PANA_McastSocket> PANA_McastChannel;

#endif // __PANA_CHANNEL_H__

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