106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
|
|
/*
|
|
* Copyright (c) 2006 INRIA
|
|
* All rights reserved.
|
|
*
|
|
* 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
|
|
*/
|
|
#ifndef ARP_CACHE_H
|
|
#define ARP_CACHE_H
|
|
|
|
#include <stdint.h>
|
|
#include "ns3/packet.h"
|
|
#include "ns3/nstime.h"
|
|
#include "ns3/net-device.h"
|
|
#include "ns3/ipv4-address.h"
|
|
#include "ns3/mac-address.h"
|
|
#include "sgi-hashmap.h"
|
|
|
|
namespace ns3 {
|
|
|
|
class NetDevice;
|
|
class Ipv4Interface;
|
|
|
|
class ArpCache {
|
|
public:
|
|
class Entry;
|
|
|
|
ArpCache (NetDevice *device, Ipv4Interface *interface);
|
|
~ArpCache ();
|
|
|
|
NetDevice *PeekDevice (void) const;
|
|
Ipv4Interface *GetInterface (void) const;
|
|
|
|
void SetAliveTimeout (Time aliveTimeout);
|
|
void SetDeadTimeout (Time deadTimeout);
|
|
void SetWaitReplyTimeout (Time waitReplyTimeout);
|
|
Time GetAliveTimeout (void) const;
|
|
Time GetDeadTimeout (void) const;
|
|
Time GetWaitReplyTimeout (void) const;
|
|
|
|
|
|
ArpCache::Entry *Lookup (Ipv4Address destination);
|
|
ArpCache::Entry *Add (Ipv4Address to);
|
|
void Flush (void);
|
|
|
|
|
|
class Entry {
|
|
public:
|
|
Entry (ArpCache *arp);
|
|
|
|
void MarkDead (void);
|
|
Packet MarkAlive (MacAddress macAddress);
|
|
void MarkWaitReply (Packet waiting);
|
|
Packet UpdateWaitReply (Packet waiting);
|
|
|
|
bool IsDead (void);
|
|
bool IsAlive (void);
|
|
bool IsWaitReply (void);
|
|
|
|
MacAddress GetMacAddress (void);
|
|
bool IsExpired (void);
|
|
private:
|
|
enum ArpCacheEntryState_e {
|
|
ALIVE,
|
|
WAIT_REPLY,
|
|
DEAD
|
|
};
|
|
|
|
void UpdateSeen (void);
|
|
ArpCache *m_arp;
|
|
ArpCacheEntryState_e m_state;
|
|
Time m_lastSeen;
|
|
MacAddress m_macAddress;
|
|
Packet m_waiting;
|
|
};
|
|
|
|
private:
|
|
typedef sgi::hash_map<Ipv4Address, ArpCache::Entry *, Ipv4AddressHash> Cache;
|
|
typedef sgi::hash_map<Ipv4Address, ArpCache::Entry *, Ipv4AddressHash>::iterator CacheI;
|
|
|
|
NetDevice *m_device;
|
|
Ipv4Interface *m_interface;
|
|
Time m_aliveTimeout;
|
|
Time m_deadTimeout;
|
|
Time m_waitReplyTimeout;
|
|
Cache m_arpCache;
|
|
};
|
|
|
|
|
|
}; // namespace ns3
|
|
|
|
#endif /* ARP_CACHE_H */
|