netmap-net-device-helper.h

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/*
 * Copyright (c) 2017 Universita' degli Studi di Napoli Federico II
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Pasquale Imputato <p.imputato@gmail.com>
 */
 
#ifndef NETMAP_NET_DEVICE_HELPER_H
#define NETMAP_NET_DEVICE_HELPER_H
 
#include "fd-net-device-helper.h"
 
#include "ns3/attribute.h"
#include "ns3/fd-net-device.h"
#include "ns3/net-device-container.h"
#include "ns3/netmap-net-device.h"
#include "ns3/node-container.h"
#include "ns3/object-factory.h"
 
#include <string>
 
namespace ns3
{
 
class NetmapNetDevice;
 
/**
 * \ingroup fd-net-device
 * \brief build a set of FdNetDevice objects attached to a physical network
 * interface
 *
 */
class NetmapNetDeviceHelper : public FdNetDeviceHelper
{
  public:
    NetmapNetDeviceHelper();
 
    virtual ~NetmapNetDeviceHelper()
    {
    }
 
    /**
     * \brief Get the device name of this device.
     * \returns The device name of this device.
     */
    std::string GetDeviceName();
 
    /**
     * \brief Set the device name of this device.
     * \param deviceName The device name of this device.
     */
    void SetDeviceName(std::string deviceName);
 
  protected:
    /**
     * \brief This method creates an ns3::FdNetDevice attached to a physical network
     * interface
     * \param node The node to install the device in
     * \returns A container holding the added net device.
     */
    Ptr<NetDevice> InstallPriv(Ptr<Node> node) const;
 
    /**
     * \brief Sets device flags and MTU.
     * \param device the FdNetDevice
     */
    virtual void SetDeviceAttributes(Ptr<FdNetDevice> device) const;
 
    /**
     * \brief Call out to a separate process running as suid root in order to get a raw
     * socket.  We do this to avoid having the entire simulation running as root.
     * \return the rawSocket number
     */
    virtual int CreateFileDescriptor() const;
 
    /**
     * \brief Switch the fd in netmap mode.
     * \param fd the file descriptor
     * \param device the NetmapNetDevice
     */
    void SwitchInNetmapMode(int fd, Ptr<NetmapNetDevice> device) const;
 
    std::string m_deviceName; //!< The unix/linux name of the underlying device (e.g., eth0)
};
 
} // namespace ns3
 
#endif /* NETMAP_NET_DEVICE_HELPER_H */