public string GetErrorMessage(TcpPacketError error)
{
//TCP tcp = Packet.TCP;
TcpDatagram tcp = _packet.Ethernet.IpV4.Tcp;
switch (error)
{
case TcpPacketError.ErrorBadDirection:
return("error wrong direction");
case TcpPacketError.WarningBadFlagAck:
return("warning ack should not be set");
case TcpPacketError.WarningOpenConnection2BadAck:
return(string.Format("warning ack (0x{0}) != source seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), (StreamState.CurrentSourceSequence - 1).zToHex()));
case TcpPacketError.WarningOpenConnection2BadMessagePosition:
return("warning message should be just after open connection step 1");
case TcpPacketError.ErrorOpenConnection2BadDirection:
return(string.Format("error wrong direction, TCP open 2, SYN seq = y (0x{0}), ACK x + 1 (0x{1})", tcp.SequenceNumber.zToHex(), tcp.AcknowledgmentNumber.zToHex()));
case TcpPacketError.WarningOpenConnection3BadAck:
return(string.Format("warning ack (0x{0}) != destination seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentDestinationSequence.zToHex()));
case TcpPacketError.WarningCloseSourceConnection1BadSeq:
return(string.Format("warning seq (0x{0}) != source seq (0x{1})", tcp.SequenceNumber.zToHex(), StreamState.CurrentSourceSequence.zToHex()));
case TcpPacketError.WarningCloseSourceConnection2BadAck:
return(string.Format("warning ack (0x{0}) != source seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentSourceSequence.zToHex()));
case TcpPacketError.WarningCloseDestinationConnection1BadSeq:
return(string.Format("warning seq (0x{0}) != destination seq (0x{1})", tcp.SequenceNumber.zToHex(), StreamState.CurrentDestinationSequence.zToHex()));
case TcpPacketError.WarningCloseDestinationConnection1BadAck:
return(string.Format("warning ack (0x{0}) != source seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentSourceSequence.zToHex()));
case TcpPacketError.WarningCloseDestinationConnection2BadAck:
return(string.Format("warning ack (0x{0}) != destination seq + 1 (0x{1}) (ACK y + 1)", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentDestinationSequence.zToHex()));
default:
return(null);
}
}
public string GetErrorMessage(TcpPacketError error)
{
//TCP tcp = Packet.TCP;
TcpDatagram tcp = _packet.Ethernet.IpV4.Tcp;
switch (error)
{
case TcpPacketError.ErrorBadDirection:
return "error wrong direction";
case TcpPacketError.WarningBadFlagAck:
return "warning ack should not be set";
case TcpPacketError.WarningOpenConnection2BadAck:
return string.Format("warning ack (0x{0}) != source seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), (StreamState.CurrentSourceSequence - 1).zToHex());
case TcpPacketError.WarningOpenConnection2BadMessagePosition:
return "warning message should be just after open connection step 1";
case TcpPacketError.ErrorOpenConnection2BadDirection:
return string.Format("error wrong direction, TCP open 2, SYN seq = y (0x{0}), ACK x + 1 (0x{1})", tcp.SequenceNumber.zToHex(), tcp.AcknowledgmentNumber.zToHex());
case TcpPacketError.WarningOpenConnection3BadAck:
return string.Format("warning ack (0x{0}) != destination seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentDestinationSequence.zToHex());
case TcpPacketError.WarningCloseSourceConnection1BadSeq:
return string.Format("warning seq (0x{0}) != source seq (0x{1})", tcp.SequenceNumber.zToHex(), StreamState.CurrentSourceSequence.zToHex());
case TcpPacketError.WarningCloseSourceConnection2BadAck:
return string.Format("warning ack (0x{0}) != source seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentSourceSequence.zToHex());
case TcpPacketError.WarningCloseDestinationConnection1BadSeq:
return string.Format("warning seq (0x{0}) != destination seq (0x{1})", tcp.SequenceNumber.zToHex(), StreamState.CurrentDestinationSequence.zToHex());
case TcpPacketError.WarningCloseDestinationConnection1BadAck:
return string.Format("warning ack (0x{0}) != source seq + 1 (0x{1})", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentSourceSequence.zToHex());
case TcpPacketError.WarningCloseDestinationConnection2BadAck:
return string.Format("warning ack (0x{0}) != destination seq + 1 (0x{1}) (ACK y + 1)", tcp.AcknowledgmentNumber.zToHex(), StreamState.CurrentDestinationSequence.zToHex());
default:
return null;
}
}
//public bool IsTcp()
//{
// if (_packet.Ethernet != null && _packet.Ethernet.IpV4 != null && _packet.Ethernet.IpV4.Tcp != null)
// return true;
// else
// return false;
//}
public void AddError(TcpPacketError error)
{
_errors.Add(error);
}
//public bool IsTcp()
//{
// if (_packet.Ethernet != null && _packet.Ethernet.IpV4 != null && _packet.Ethernet.IpV4.Tcp != null)
// return true;
// else
// return false;
//}
public void AddError(TcpPacketError error)
{
_errors.Add(error);
}
