public Entry RegisterChannelEventReceiver(SSHChannel ch, ISSHChannelEventReceiver r) {
lock (this) {
Entry e = new Entry(ch, r, _channel_sequence++);
if (_first == null)
_first = e;
else {
e.Next = _first;
_first = e;
}
_count++;
return e;
}
}
public SshTunnelStream(SSHChannel channel)
{
this.m_Channel = channel;
}
internal void RegisterChannel(int local_id, SSHChannel ch) {
FindChannelEntry(local_id).Channel = ch;
}
public void EstablishPortforwarding(ISSHChannelEventReceiver rec, SSHChannel channel)
{
this.m_Channel = channel;
}
public Entry(SSHChannel ch, ISSHChannelEventReceiver r, int seq) {
_channel = ch;
_receiver = r;
_localID = seq;
}
/// <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;
}
}
internal void SetChannel(SSHChannel channel) {
_channel = channel;
}
public override void Run(SSHChannel channel) {
_channel = channel;
try {
WaitAndReset();
Debug.Assert(_state == State.Failed || _state == State.WaitingFileInfoResponse);
if (_state == State.Failed)
return;
TransmitFileInfo();
WaitAndReset();
Debug.Assert(_state == State.Failed || _state == State.SendingContent);
if (_state == State.Failed)
return;
TransmitFileContent();
WaitAndReset();
Debug.Assert(_state == State.Failed || _state == State.Completed);
if (_state == State.Completed) {
SuccessfullyExit();
}
}
catch (Exception ex) {
UnsuccessfullyExit(ex);
}
finally {
_param.LocalSource.Close();
}
}
public override void Run(SSHChannel channel) {
_channel = channel;
_channelReadyEvent.WaitOne();
SendResponse(); //これでやりとりがはじまる
}
public abstract void Run(SSHChannel channel); //start scp operation