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interfaces-linux.h

/******************************************************************************
    (c) 2002 Patrick Caulfield                 patrick@debian.org

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    any later version.

    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.
******************************************************************************/

// interfaces-linux.h
// Linux implementation of LATinterfaces
class LinuxInterfaces : public LATinterfaces
{
 public:

    LinuxInterfaces() {};
    ~LinuxInterfaces() {};

    // Initialise
    virtual int Start(int proto);

    // Return a list of valid interface numbers and the count
    virtual void get_all_interfaces(int *ifs, int &num);

    // Print the name of an interface
    virtual std::string ifname(int ifn);

    // Find an interface number by name
    virtual int find_interface(char *name);

    // true if this class defines one FD for each active
    // interface, false if one fd is used for all interfaces.
    virtual bool one_fd_per_interface();

    // Return the FD for this interface (will only be called once for
    // select if above returns false)
    virtual int get_fd(int ifn);

    // Send a packet to a given macaddr
    virtual int send_packet(int ifn, unsigned char macaddr[], unsigned char *data, int len);

    // Receive a packet from a given interface
    virtual int recv_packet(int sockfd, int &ifn, unsigned char macaddr[], unsigned char *data, int maxlen, bool &more);

    // Enable reception of LAT multicast messages
    virtual int set_lat_multicast(int ifn);

    // Finished listening for LAT multicasts
    virtual int remove_lat_multicast(int ifn);

    // Bind a socket to an interface
    virtual int bind_socket(int interface);

 private:
    int fd;
};

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