private bool ValidateCRC(uint input)
{
var calculatedCRC = CRC32.CalcCrc32(previousDecryptIV, 2);
if (UseMemoryCRC)
{
foreach (var region in MemoryRegions.Instance.Regions)
{
calculatedCRC = CRC32.CalcCrc32(
region.Data,
region.Length,
calculatedCRC ^ (region.Address + (uint)_memoryOffset),
_memoryOffset
);
}
}
var isValid = calculatedCRC == input;
if (!isValid)
{
if (_ignoredWrongCRC)
{
log.Error($"Disconnecting client because CRC didnt match _again_");
}
else
{
log.Warn($"Accepting wrong CRC for _once_...");
_ignoredWrongCRC = true;
isValid = true;
}
}
return(isValid);
}
public override void SendPacket(Packet pPacket)
{
while (IsConnectedAsClient && MEMORY_CRC_ENABLED && (BitConverter.ToUInt16(_encryptIV, 0) % 31) == 0)
{
var p = new Packet((byte)ClientMessages.CLIENT_HASH);
p.WriteByte(1);
p.WriteUInt(CRC32.CalcCrc32(_encryptIV, 2)); // TODO: Get CRC for memory
base.SendPacket(p);
}
base.SendPacket(pPacket);
}
