/usr/include/tins/network_interface.h is in libtins-dev 1.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2012, Matias Fontanini
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef TINS_NETWORK_INTERFACE_H
#define TINS_NETWORK_INTERFACE_H
#include <string>
#include <stdint.h>
#include "hw_address.h"
#include "ip_address.h"
namespace Tins {
/**
* \class NetworkInterface
* \brief Abstraction of a network interface
*/
class NetworkInterface {
public:
/**
* \brief The type used to store the interface's identifier.
*/
typedef uint32_t id_type;
/**
* \brief The type of this interface's address.
*/
typedef HWAddress<6> address_type;
/**
* \brief Struct that holds an interface's addresses.
*/
struct Info {
IPv4Address ip_addr, netmask, bcast_addr;
address_type hw_addr;
};
/**
* Returns a NetworkInterface object associated with the default
* interface.
*/
static NetworkInterface default_interface();
/**
* Default constructor.
*/
NetworkInterface();
/**
* \brief Constructor from std::string.
*
* \param name The name of the interface this object will abstract.
*/
NetworkInterface(const std::string &name);
/**
* \brief Constructor from const char*.
*
* \param name The name of the interface this object will abstract.
*/
NetworkInterface(const char *name);
/**
* \brief Constructs a NetworkInterface from an ip address.
*
* This abstracted interface will be the one that would be the gateway
* when sending a packet to the given ip.
*
* \param ip The ip address being looked up.
*/
NetworkInterface(IPv4Address ip);
/**
* \brief Getter for this interface's identifier.
*
* \return id_type containing the identifier.
*/
id_type id() const {
return iface_id;
}
/**
* \brief Retrieves this interface's name.
*
* \return std::string containing this interface's name.
*/
std::string name() const;
/**
* \brief Retrieve this interface's addresses.
*
* This method iterates through all the interface's until the
* correct one is found. Therefore it's O(N), being N the amount
* of interfaces in the system.
*/
Info addresses() const;
/**
* \brief Tests whether this is a valid interface;
*
* An interface will not be valid iff it was created using the
* default constructor.
*/
operator bool() const {
return iface_id != 0;
}
/**
* \brief Compares this interface for equality.
*
* \param rhs The interface being compared.
*/
bool operator==(const NetworkInterface &rhs) const {
return iface_id == rhs.iface_id;
}
/**
* \brief Compares this interface for inequality.
*
* \param rhs The interface being compared.
*/
bool operator!=(const NetworkInterface &rhs) const {
return !(*this == rhs);
}
private:
id_type resolve_index(const char *name);
id_type iface_id;
};
}
#endif // TINS_NETWORK_INTERFACE_H
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