/// <summary>
/// Initializes SMB message for SMB_COM_TRANSACTION_SECONDARY
/// </summary>
/// <param name = "msg">SMB message</param>
/// <param name = "cmd">Command</param>
internal void SetupSmbMessageSecondary(SmbMessage msg, byte cmd) // should be protected
{
msg.setCommand(cmd);
msg.setUID(fUID);
msg.setTID(fTID);
msg.setPID(fPID);
msg.setMID(fMID);
msg.setCanHandleLongNames();
msg.setExtededAttributes();
}
/// <summary>
/// Negotiates protocol (we only support NT_LM_0_12). Calls NetBIOS
/// </summary>
/// <param name = "nbt">NetBIOS session</param>
/// <param name = "nbtname">NetBIOS name</param>
/// <param name = "msg">SMB Message</param>
/// <returns>Negotiated protocol</returns>
internal static int Negotiate(NbtSession nbt, string nbtname, SmbMessage msg)
{
if (Debug.DebugOn)
Debug.WriteLine(Debug.Info, "SMB_COM_NEGOTIATE");
nbt.DoCall(nbtname);
msg.setCommand(SmbMessage.SMB_COM_NEGOTIATE);
msg.setPID(fPID);
/**
* struct {
* UCHAR BufferFormat; // DT_DIALECT
* UCHAR DialectName[]; // Null-terminated
* } Dialects[];
*/
var buf = new StringBuilder();
for (int i = 0; i < SUPPORTED_DIALECTS.Length; i++)
{
buf.Append((char) SmbMessage.DT_DIALECT);
buf.Append(SUPPORTED_DIALECTS[i]);
buf.Append('\0');
}
msg.setContent(Encoding.UTF8.GetBytes(buf.ToString()));
if (Debug.DebugOn && Debug.DebugLevel >= Debug.Buffer)
{
Debug.WriteLine(Debug.Buffer, "Supported Dialects:");
Debug.WriteLine(Debug.Buffer, msg.getMessageBuffer(), 0, msg.getMessageSize());
}
msg.SendAndRecieve(nbt, msg);
if (Debug.DebugOn && Debug.DebugLevel >= Debug.Buffer)
{
Debug.WriteLine(Debug.Buffer, "Dialects Response:");
Debug.WriteLine(Debug.Buffer, msg.getMessageBuffer(), 0, msg.getMessageSize());
}
int protocol = msg.getParameter(0);
if (protocol == -1)
throw new CifsIoException("PE1");
if (protocol != NT_LM_0_12)
throw new CifsIoException("PE2", SUPPORTED_DIALECTS[protocol]);
if (msg.getWordCount() != 17)
throw new CifsIoException("PE2", SUPPORTED_DIALECTS[protocol]);
if (Debug.DebugOn && Debug.DebugLevel >= Debug.Info)
Debug.WriteLine(Debug.Info, "Negotiated protocol: " + SUPPORTED_DIALECTS[protocol]);
return protocol;
}
/// <summary>
/// Initializes the SMB message
/// </summary>
/// <param name = "msg">SMB message</param>
/// <param name = "cmd">Command</param>
internal void SetupSmbMessage(SmbMessage msg, byte cmd) // should be protected
{
msg.setCommand(cmd);
msg.setUID(fUID);
msg.setTID(fTID);
msg.setPID(fPID);
msg.setMID(nextMID());
msg.setCanHandleLongNames();
msg.setExtededAttributes();
if (cmd == SmbMessage.SMB_COM_TREE_CONNECT_ANDX ||
cmd == SmbMessage.SMB_COM_TREE_DISCONNECT ||
cmd == SmbMessage.SMB_COM_SESSION_SETUP_ANDX ||
cmd == SmbMessage.SMB_COM_LOGOFF_ANDX)
return;
CheckConnection();
}
