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Kernel/include/net/arp.hpp
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Kernel/include/net/arp.hpp
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/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel 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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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __FENNIX_KERNEL_NETWORK_ARP_H__
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#define __FENNIX_KERNEL_NETWORK_ARP_H__
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#include <net/eth.hpp>
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#include <net/nc.hpp>
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#include <types.h>
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#include <vector>
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namespace NetworkARP
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{
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enum ARPOperation
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{
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REQUEST = 0x1,
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REPLY = 0x2
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};
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enum ARPHardwareType
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{
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HTYPE_ETHERNET = 1,
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HTYPE_802_3 = 6,
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HTYPE_ARCNET = 7,
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HTYPE_FRAME_RELAY = 15,
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HTYPE_ATM = 16,
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HTYPE_HDLC = 17,
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HTYPE_FIBRE_CHANNEL = 18,
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HTYPE_ATM_2 = 19,
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HTYPE_SERIAL_LINE = 20
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};
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struct ARPHeader
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{
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uint16_t HardwareType;
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uint16_t ProtocolType;
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uint8_t HardwareSize;
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uint8_t ProtocolSize;
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uint16_t Operation;
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uint48_t SenderMAC : 48;
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uint32_t SenderIP;
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uint48_t TargetMAC : 48;
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uint32_t TargetIP;
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} __packed;
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struct DiscoveredAddress
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{
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MediaAccessControl MAC;
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InternetProtocol IP;
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};
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class ARP : public NetworkEthernet::EthernetEvents
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{
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private:
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NetworkEthernet::Ethernet *Ethernet;
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enum DAType
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{
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DA_ADD = 1,
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DA_DEL = 2,
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DA_SEARCH = 3,
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DA_UPDATE = 4
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};
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std::vector<NetworkARP::DiscoveredAddress *> DiscoveredAddresses;
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DiscoveredAddress *ManageDiscoveredAddresses(DAType Type, InternetProtocol IP, MediaAccessControl MAC);
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DiscoveredAddress *Search(InternetProtocol TargetIP);
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DiscoveredAddress *Update(InternetProtocol TargetIP, MediaAccessControl TargetMAC);
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bool OnEthernetPacketReceived(uint8_t *Data, size_t Length);
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public:
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ARP(NetworkEthernet::Ethernet *Ethernet);
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~ARP();
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/**
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* @brief Resolve an IP address to a MAC address.
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*
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* @param IP The IP address to resolve. (Little-endian)
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* @return uint48_t The MAC address of the IP address.
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*/
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uint48_t Resolve(InternetProtocol IP);
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/**
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* @brief Broadcast an ARP packet.
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*
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* @param IP The IP address to broadcast.
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*/
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void Broadcast(InternetProtocol IP);
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};
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}
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#endif // !__FENNIX_KERNEL_NETWORK_ARP_H__
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