mirror of
https://github.com/Fennix-Project/Kernel.git
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138 lines
3.3 KiB
C++
138 lines
3.3 KiB
C++
/*
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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_IPv4_H__
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#define __FENNIX_KERNEL_IPv4_H__
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#include <net/ipv4.hpp>
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#include <net/arp.hpp>
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#include <net/nc.hpp>
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#include <types.h>
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namespace NetworkIPv4
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{
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struct IPv4Header
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{
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uint8_t IHL : 4;
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uint8_t Version : 4;
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uint8_t TypeOfService;
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uint16_t TotalLength;
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uint16_t Identification;
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uint8_t Flags;
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uint8_t FragmentOffset;
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uint8_t TimeToLive;
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uint8_t Protocol;
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uint16_t HeaderChecksum;
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uint32_t SourceIP;
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uint32_t DestinationIP;
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/* On wikipedia page we have this: https://en.wikipedia.org/wiki/File:IPv4_Packet-en.svg
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but only the code above works... */
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// uint8_t Version : 4;
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// uint8_t IHL : 4;
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// uint16_t TypeOfService : 8;
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// uint16_t TotalLength : 12;
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// uint16_t Identification : 16;
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// uint16_t Flags : 3;
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// uint16_t FragmentOffset : 13;
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// uint8_t TimeToLive : 8;
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// uint8_t Protocol : 8;
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// uint16_t HeaderChecksum;
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// uint32_t SourceIP;
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// uint32_t DestinationIP;
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};
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struct IPv4Packet
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{
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IPv4Header Header;
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uint8_t Data[];
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};
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enum IPv4Protocols
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{
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PROTOCOL_ICMP = 1,
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PROTOCOL_IGMP = 2,
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PROTOCOL_TCP = 6,
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PROTOCOL_UDP = 17,
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PROTOCOL_IPV6 = 41,
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PROTOCOL_ROUTING = 43,
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PROTOCOL_FRAGMENT = 44,
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PROTOCOL_ESP = 50,
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PROTOCOL_AH = 51,
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PROTOCOL_ICMPV6 = 58,
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PROTOCOL_NONE = 59,
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PROTOCOL_DSTOPTS = 60,
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PROTOCOL_ND = 77,
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PROTOCOL_ICLFXBM = 78,
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PROTOCOL_PIM = 103,
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PROTOCOL_COMP = 108,
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PROTOCOL_SCTP = 132,
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PROTOCOL_UDPLITE = 136,
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PROTOCOL_RAW = 255
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};
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class IPv4 : public NetworkEthernet::EthernetEvents
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{
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private:
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NetworkARP::ARP *ARP;
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NetworkEthernet::Ethernet *Ethernet;
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virtual bool OnEthernetPacketReceived(uint8_t *Data, size_t Length);
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public:
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InternetProtocol GatewayIP;
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InternetProtocol SubNetworkMaskIP;
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IPv4(NetworkARP::ARP *ARP, NetworkEthernet::Ethernet *Ethernet);
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~IPv4();
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/**
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* @brief Send an IPv4 packet.
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*
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* @param Data The data to send.
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* @param Length The length of the data.
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* @param Protocol The protocol of the packet.
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* @param DestinationIP The IP address of the destination. (Big-endian)
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*/
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void Send(uint8_t *Data, size_t Length, uint8_t Protocol, InternetProtocol DestinationIP);
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};
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class IPv4Events
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{
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private:
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uint8_t Protocol;
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protected:
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IPv4Events(IPv4Protocols Protocol);
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~IPv4Events();
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public:
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uint8_t GetProtocol() { return Protocol; }
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virtual bool OnIPv4PacketReceived(InternetProtocol SourceIP, InternetProtocol DestinationIP, uint8_t *Data, size_t Length)
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{
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UNUSED(SourceIP);
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UNUSED(DestinationIP);
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UNUSED(Data);
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UNUSED(Length);
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warn("Not implemented");
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return false;
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}
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};
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}
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#endif // !__FENNIX_KERNEL_IPv4_H__
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