private Cipher _tCipher; //cipher for transmission
// exec command for SCP
//private bool _executingExecCmd = false;
public SSH1Connection(SSHConnectionParameter param, AbstractGranadosSocket s, ISSHConnectionEventReceiver er, string serverversion, string clientversion) : base(param, s, er) {
_cInfo = new SSH1ConnectionInfo();
_cInfo._serverVersionString = serverversion;
_cInfo._clientVersionString = clientversion;
_shellID = -1;
_packetReceiver = new SynchronizedPacketReceiver(this);
_packetBuilder = new SSH1PacketBuilder(_packetReceiver);
}
private readonly object _transmitSync = new object(); // for keeping correct packet order
internal SSH2Connection(SSHConnectionParameter param, AbstractGranadosSocket strm, ISSHConnectionEventReceiver r, string serverversion, string clientversion)
: base(param, strm, r) {
_cInfo = new SSH2ConnectionInfo();
_cInfo._serverVersionString = serverversion;
_cInfo._clientVersionString = clientversion;
_packetReceiver = new SynchronizedPacketReceiver(this);
_packetBuilder = new SSH2PacketBuilder(_packetReceiver);
}
protected bool _execCmdWaitFlag; // wait response flag for sending exec command to server
protected SSHConnection(SSHConnectionParameter param, AbstractGranadosSocket strm, ISSHConnectionEventReceiver receiver) {
_param = (SSHConnectionParameter)param.Clone();
_stream = strm;
_eventReceiver = receiver;
_channel_collection = new ChannelCollection();
_autoDisconnect = true;
_execCmd = null;
_execCmdWaitFlag = true;
}
/**
* writes to encrypted stream
*/
public void WriteTo(AbstractGranadosSocket output, Cipher cipher)
{
byte[] image = BuildImage();
//dumpBA(image);
byte[] encrypted = new byte[image.Length - 4];
cipher.Encrypt(image, 4, image.Length - 4, encrypted, 0); //length field must not be encrypted
Array.Copy(encrypted, 0, image, 4, encrypted.Length);
output.Write(image, 0, image.Length);
}
/**
* writes to plain stream
*/
public void WriteTo(AbstractGranadosSocket output)
{
byte[] image = BuildImage();
output.Write(image, 0, image.Length);
}
public VersionExchangeHandler(SSHConnectionParameter param, AbstractGranadosSocket socket)
: base(socket)
{
_param = param;
}
public SynchronizedDataHandler(AbstractGranadosSocket socket)
{
_socket = socket;
_event = new ManualResetEvent(false);
_results = new Queue();
}
internal DummySSHConnection(SSHConnectionParameter param, AbstractGranadosSocket strm, ISSHConnectionEventReceiver receiver)
: base(param, strm, receiver)
{
}
private static SSHConnection ConnectMain(SSHConnectionParameter param, ISSHConnectionEventReceiver receiver, VersionExchangeHandler pnh, AbstractGranadosSocket s)
{
DataFragment data = pnh.WaitResponse();
string sv = pnh.ServerVersion;
SSHConnection con = null;
if (param.Protocol == SSHProtocol.SSH1)
con = new SSH1Connection(param, s, receiver, sv, SSHUtil.ClientVersionString(param.Protocol));
else
con = new SSH2Connection(param, s, receiver, sv, SSHUtil.ClientVersionString(param.Protocol));
con.TraceReceptionEvent("server version-string", sv.Trim());
pnh.Close();
s.SetHandler(con.PacketBuilder);
con.SendMyVersion(param);
if (con.Connect() != AuthenticationResult.Failure) {
return con;
}
else {
s.Close();
return null;
}
}
public VersionExchangeHandler(SSHConnectionParameter param, AbstractGranadosSocket socket)
: base(socket) {
_param = param;
}
public SynchronizedDataHandler(AbstractGranadosSocket socket) {
_socket = socket;
_event = new ManualResetEvent(false);
_results = new Queue();
}