* Copyright 2005, Ingo Weinhold <bonefish@cs.tu-berlin.de>.
* All rights reserved. Distributed under the terms of the MIT License.
*/
#ifndef _BOOT_ARP_H
#define _BOOT_ARP_H
#include <boot/net/Ethernet.h>
#include <OS.h>
class ARPService : public EthernetSubService {
public:
ARPService(EthernetService *ethernet);
virtual ~ARPService();
status_t Init();
virtual uint16 EthernetProtocol() const;
virtual void HandleEthernetPacket(EthernetService *ethernet,
const mac_addr_t &targetAddress, const void *data, size_t size);
status_t GetMACForIP(ip_addr_t ip, mac_addr_t &mac);
private:
enum { MAP_ENTRY_COUNT = 10 };
enum { ARP_REQUEST_RETRY_COUNT = 3 };
enum { ARP_REPLY_TIMEOUT = 5000 };
struct MapEntry {
int32 age;
ip_addr_t ip;
mac_addr_t mac;
};
status_t _SendARPPacket(ip_addr_t ip, const mac_addr_t &mac, uint16 opcode);
MapEntry *_FindEntry(ip_addr_t ip);
void _PutEntry(ip_addr_t ip, const mac_addr_t &mac);
EthernetService *fEthernet;
int32 fAge;
MapEntry fEntries[MAP_ENTRY_COUNT];
};
#endif
