protected SSHChannel(SSHConnection con, ChannelType type, int local_id)
{
con.ChannelCollection.RegisterChannel(local_id, this);
_connection = con;
_type = type;
_localID = local_id;
}
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)
{
throw new SSHException("SSH1 is not supported");
}
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);
}
}
protected SSHChannel(SSHConnection con, ChannelType type, int local_id) {
con.ChannelCollection.RegisterChannel(local_id, this);
_connection = con;
_type = type;
_localID = local_id;
}
/// <summary>
/// Connect to remote host:port over SSH tunnel
/// </summary>
public void Connect(string host, int port, int timeout)
{
try
{
//remember remote target
m_RemoteTarget = new IPEndPoint(ResolveHost(host), port);
//connect to SSH server
if (!connectAsync(m_RemoteTarget.Address, SSHServerPort).Wait(timeout))
throw new ErlException(ERL_CONN_CANT_CONNECT_TO_HOST_ERROR.Args("SSH", host, port));
//get password from user
var pass = ErlTransportPasswordSource.GetPassword(this, NodeName, SSHUserName);
//set params
var param = new SSHConnectionParameter();
param.EventTracer = this; //to receive detailed events
param.UserName = SSHUserName;
param.Password = pass;
param.Protocol = SSHProtocol.SSH2;
param.AuthenticationType = (AuthenticationType)
Enum.Parse(typeof (SSH.AuthenticationType), SSHAuthenticationType);
if (param.AuthenticationType == AuthenticationType.PublicKey)
param.IdentityFile = SSHPrivateKeyFilePath;
//former algorithm is given priority in the algorithm negotiation
param.PreferableHostKeyAlgorithms = new PublicKeyAlgorithm[]
{PublicKeyAlgorithm.RSA, PublicKeyAlgorithm.DSA};
param.PreferableCipherAlgorithms = new CipherAlgorithm[]
{
CipherAlgorithm.Blowfish, CipherAlgorithm.TripleDES, CipherAlgorithm.AES192CTR,
CipherAlgorithm.AES256CTR, CipherAlgorithm.AES128CTR
};
param.WindowSize = 0x1000; //this option is ignored with SSH1
//Creating a new SSH connection over the underlying socket
m_Connection = SSHConnection.Connect(param, this, m_Client);
m_Connection.AutoDisconnect = true;
m_IsChannelReady = 0;
//Local->Remote port forwarding (we use localhost:0 as local port, because local port is not required for us, we will use this tunnel directly)
m_Channel = m_Connection.ForwardPort(this, host, port, "localhost", 0);
var deadLine = DateTime.Now.AddMilliseconds(timeout);
while (m_IsChannelReady == 0 && deadLine > DateTime.Now)
System.Threading.Thread.Sleep(50); //wait response
//if timeouted - throw exception
if (m_IsChannelReady <= 0)
throw new ErlException(ERL_CREATE_SSH_TUNNEL_ERROR);
//create network stream
m_Stream = new SshTunnelStream(m_Channel);
//Remote->Local
// if you want to listen to a port on the SSH server, follow this line:
//_conn.ListenForwardedPort("0.0.0.0", 10000);
//NOTE: if you use SSH2, dynamic key exchange feature is supported.
//((SSH2Connection)_conn).ReexchangeKeys();
}
catch (Exception ex)
{
OnTrace(ErlTraceLevel.Ctrl, Direction.Inbound, ex.Message);
throw;
}
}
