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