/// <summary>
/// Send IPV4 packet
/// </summary>
/// <param name="packet">Packet structure</param>
/// <param name="destMac">Destination mac</param>
/// <param name="destIP">Destination IP</param>
/// <param name="protocol">Protocol</param>
public static unsafe void Send(NetPacketDesc *packet, byte[] destIP, byte protocol)
{
byte[] sourceIP = Util.PtrToArray(Network.Settings->IP);
addHeader(packet, sourceIP, destIP, protocol);
Ethernet.Send(packet, destIP, EthernetTypes.IPV4);
}
public static unsafe void ArpSend(ushort op, byte[] hwAddr, byte[] ip)
{
byte *mac = (byte *)Heap.Alloc(6);
Network.GetMac(mac);
NetPacketDesc *packet = NetPacket.Alloc();
ARPHeader *hdr = (ARPHeader *)(packet->buffer + packet->end);
hdr->HardwareType = Byte.ReverseBytes(0x01);
hdr->ProtocolType = Byte.ReverseBytes(0x800);
hdr->HardwareAdrLength = 6;
hdr->ProtocolAdrLength = 4;
hdr->Opcode = Byte.ReverseBytes(op);
Memory.Memcpy(hdr->SrcIP, Network.Settings->IP, 4);
Memory.Memcpy(hdr->SrcHw, mac, 6);
Memory.Memcpy(hdr->DstIP, Util.ObjectToVoidPtr(ip), 4);
if (op == OP_REPLY)
{
Memory.Memcpy(hdr->DstHw, Util.ObjectToVoidPtr(hwAddr), 6);
}
else
{
Memory.Memset(hdr->DstHw, 0, 6);
}
packet->end += (short)sizeof(ARPHeader);
Ethernet.SendMAC(packet, hwAddr, EthernetTypes.ARP);
NetPacket.Free(packet);
Heap.Free(mac);
}
