102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2008 University of Washington
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef IPV4_INTERFACE_ADDRESS_H
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#define IPV4_INTERFACE_ADDRESS_H
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#include <stdint.h>
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#include <ostream>
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#include "ipv4-address.h"
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namespace ns3 {
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/**
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* \ingroup address
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*
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* \brief a class to store IPv4 address information on an interface
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*
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* Corresponds to Linux struct in_ifaddr. A list of these addresses
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* is stored in Ipv4Interface. This class is modelled after how current
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* Linux handles IP aliasing for IPv4. Notably, aliasing of IPv4
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* interfaces (e.g., "eth0:1") is not used, and instead an interface
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* is assigned possibly multiple addresses, with each address being
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* classified as being primary and secondary. See the iproute2
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* documentation for this distinction.
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*/
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class Ipv4InterfaceAddress
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{
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public:
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enum InterfaceAddressScope_e {
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HOST,
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LINK,
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GLOBAL
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};
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Ipv4InterfaceAddress ();
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// Configure m_local, m_mask, and m_broadcast from the below constructor
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Ipv4InterfaceAddress (Ipv4Address local, Ipv4Mask mask);
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Ipv4InterfaceAddress (const Ipv4InterfaceAddress &o);
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void SetLocal (Ipv4Address local);
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Ipv4Address GetLocal (void) const;
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void SetMask (Ipv4Mask mask);
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Ipv4Mask GetMask (void) const;
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void SetBroadcast (Ipv4Address broadcast);
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Ipv4Address GetBroadcast (void) const;
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void SetScope (Ipv4InterfaceAddress::InterfaceAddressScope_e scope);
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Ipv4InterfaceAddress::InterfaceAddressScope_e GetScope (void) const;
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bool IsSecondary (void) const;
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void SetSecondary (void);
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void SetPrimary (void);
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private:
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Ipv4Address m_local; // Interface address
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// Note: m_peer may be added in future when necessary
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// Ipv4Address m_peer; // Peer destination address (in Linux: m_address)
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Ipv4Mask m_mask; // Network mask
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Ipv4Address m_broadcast; // Broadcast address
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InterfaceAddressScope_e m_scope;
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bool m_secondary; // For use in multihoming
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friend bool operator == (Ipv4InterfaceAddress const &a, Ipv4InterfaceAddress const &b);
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friend bool operator != (Ipv4InterfaceAddress const &a, Ipv4InterfaceAddress const &b);
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};
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std::ostream& operator<< (std::ostream& os, const Ipv4InterfaceAddress &addr);
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inline bool operator == (const Ipv4InterfaceAddress &a, const Ipv4InterfaceAddress &b)
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{
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return (a.m_local == b.m_local && a.m_mask == b.m_mask &&
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a.m_broadcast == b.m_broadcast && a.m_scope == b.m_scope && a.m_secondary == b.m_secondary);
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}
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inline bool operator != (const Ipv4InterfaceAddress &a, const Ipv4InterfaceAddress &b)
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{
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return (a.m_local != b.m_local || a.m_mask != b.m_mask ||
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a.m_broadcast != b.m_broadcast || a.m_scope != b.m_scope || a.m_secondary != b.m_secondary);
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}
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} // namespace ns3
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#endif /* IPV4_ADDRESS_H */
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