public unsafe override PacketMainReturn interiorMain(ref Packet in_packet)
{
lock (padlock)
{
if (theirMac == null)
{
return(null);
}
EthPacket e = (EthPacket)in_packet;
if ((e.Proto[0] & 0x01) == 0x01 && (CompareMac(theirMac, e.FromMac) && CompareMac(myMac, e.ToMac) || (CompareMac(theirMac, e.ToMac) && CompareMac(myMac, e.FromMac))))
{
INTERMEDIATE_BUFFER *IB = e.IB;
rc4.SetKeyState(key);
INTERMEDIATE_BUFFER *iba = (INTERMEDIATE_BUFFER *)Marshal.AllocHGlobal(Marshal.SizeOf(new INTERMEDIATE_BUFFER()));
iba->m_dwDeviceFlags = IB->m_dwDeviceFlags;
iba->m_Flags = IB->m_Flags;
iba->m_Length = IB->m_Length;
iba->m_qLink = IB->m_qLink;
for (int x = 12; x < IB->m_Length; x++)
{
iba->m_IBuffer[x] = (byte)(IB->m_IBuffer[x] ^ rc4.Next());
}
EthPacket nPacket = new EthPacket(iba);
nPacket.FromMac = e.FromMac;
nPacket.ToMac = e.ToMac;
nPacket.Proto = new byte[2];
nPacket.Proto[0] = (byte)(0xFE & e.Proto[0]);
nPacket.Proto[1] = e.Proto[1];
adapter.ProcessPacket(nPacket);
return(new PacketMainReturn("SimpleMacEncryption")
{
returnType = PacketMainReturnType.Drop
});
}
}
return(null);
}