public override void connect()
{
try
{
if (!session.isConnected())
{
throw new JSchException("session is down");
}
Buffer buf = new Buffer(150);
Packet packet = new Packet(buf);
// send
// byte SSH_MSG_CHANNEL_OPEN(90)
// string channel type //
// uint32 sender channel // 0
// uint32 initial window size // 0x100000(65536)
// uint32 maxmum packet size // 0x4000(16384)
packet.reset();
buf.putByte((byte) 90);
buf.putString(Util.getBytes("direct-tcpip"));
buf.putInt(id);
buf.putInt(lwsize);
buf.putInt(lmpsize);
buf.putString(Util.getBytes(host));
buf.putInt(port);
buf.putString(Util.getBytes(originator_IP_address));
buf.putInt(originator_port);
session.write(packet);
int retry = 1000;
try
{
while (this.getRecipient() == -1 &&
session.isConnected() &&
retry > 0 &&
!_eof_remote)
{
//Thread.sleep(500);
Thread.Sleep(50);
retry--;
}
}
catch
{
}
if (!session.isConnected())
{
throw new JSchException("session is down");
}
if (retry == 0 || this._eof_remote)
{
throw new JSchException("channel is not opened.");
}
/*
if(this.eof_remote){ // failed to open
disconnect();
return;
}
*/
connected = true;
thread = new JavaThread(this);
thread.Start();
}
catch (Exception e)
{
io.close();
io = null;
del(this);
if (e is JSchException)
{
throw (JSchException) e;
}
}
}
public override void run()
{
thread = new JavaThread(Thread.CurrentThread);
Buffer buf = new Buffer(rmpsize);
Packet packet = new Packet(buf);
int i = 0;
try
{
while (thread != null && io != null && io.ins != null)
{
i = io.ins.Read(buf.buffer,
14,
buf.buffer.Length - 14
- 32 - 20 // padding and mac
);
if (i <= 0)
{
eof();
break;
}
packet.reset();
if (_close) break;
buf.putByte((byte) Session.SSH_MSG_CHANNEL_DATA);
buf.putInt(recipient);
buf.putInt(i);
buf.skip(i);
session.write(packet, this, i);
}
}
catch (Exception)
{
//System.out.println(e);
}
//thread=null;
//eof();
disconnect();
}
public override void start()
{
try
{
Request request;
if (xforwading)
{
request = new RequestX11();
request.request(session, this);
}
if (pty)
{
request = new RequestPtyReq();
request.request(session, this);
}
request = new RequestExec(command);
request.request(session, this);
}
catch (Exception)
{
throw new JSchException("ChannelExec");
}
thread = new JavaThread(this);
thread.Name("Exec thread " + session.getHost());
thread.Start();
}
public virtual void disconnect()
{
//System.Out.println(this+":disconnect "+io+" "+io.in);
if (!connected)
{
return;
}
connected = false;
close();
_eof_remote = eof_local = true;
thread = null;
try
{
if (io != null)
{
io.close();
}
}
catch (Exception)
{
//e.printStackTrace();
}
io = null;
del(this);
}
public override void start()
{
try
{
Request request;
if (xforwading)
{
request = new RequestX11();
request.request(session, this);
}
if (pty)
{
request = new RequestPtyReq();
request.request(session, this);
}
request = new RequestSubsystem();
((RequestSubsystem) request).request(session, this, subsystem, want_reply);
}
catch (Exception e)
{
if (e is JSchException)
{
throw (JSchException) e;
}
throw new JSchException("ChannelSubsystem");
}
JavaThread thread = new JavaThread(this);
thread.Name("Subsystem for " + session.host);
thread.Start();
}
public void run()
{
thread = this;
byte[] foo;
Buffer buf = new Buffer();
Packet packet = new Packet(buf);
int i = 0;
Channel channel;
int[] start = new int[1];
int[] length = new int[1];
KeyExchange kex = null;
try
{
while (_isConnected &&
thread != null)
{
buf = read(buf);
int msgType = buf.buffer[5] & 0xff;
if (kex != null && kex.getState() == msgType)
{
bool result = kex.next(buf);
if (!result)
{
throw new JSchException("verify: " + result);
}
continue;
}
switch (msgType)
{
case SSH_MSG_KEXINIT:
//System.Console.WriteLine("KEXINIT");
kex = receive_kexinit(buf);
break;
case SSH_MSG_NEWKEYS:
//System.Console.WriteLine("NEWKEYS");
send_newkeys();
receive_newkeys(buf, kex);
kex = null;
break;
case SSH_MSG_CHANNEL_DATA:
buf.getInt();
buf.getByte();
buf.getByte();
i = buf.getInt();
channel = Channel.getChannel(i, this);
foo = buf.getString(start, length);
if (channel == null)
{
break;
}
try
{
channel.write(foo, start[0], length[0]);
}
catch (Exception)
{
//System.Console.WriteLine(e);
try
{
channel.disconnect();
}
catch (Exception) { }
break;
}
int len = length[0];
channel.setLocalWindowSize(channel.lwsize - len);
if (channel.lwsize < channel.lwsize_max / 2)
{
packet.reset();
buf.putByte((byte)SSH_MSG_CHANNEL_WINDOW_ADJUST);
buf.putInt(channel.getRecipient());
buf.putInt(channel.lwsize_max - channel.lwsize);
write(packet);
channel.setLocalWindowSize(channel.lwsize_max);
}
break;
case SSH_MSG_CHANNEL_EXTENDED_DATA:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
buf.getInt(); // data_type_code == 1
foo = buf.getString(start, length);
//System.Console.WriteLine("stderr: "+new String(foo,start[0],length[0]));
if (channel == null)
{
break;
}
//channel.write(foo, start[0], length[0]);
channel.write_ext(foo, start[0], length[0]);
len = length[0];
channel.setLocalWindowSize(channel.lwsize - len);
if (channel.lwsize < channel.lwsize_max / 2)
{
packet.reset();
buf.putByte((byte)SSH_MSG_CHANNEL_WINDOW_ADJUST);
buf.putInt(channel.getRecipient());
buf.putInt(channel.lwsize_max - channel.lwsize);
write(packet);
channel.setLocalWindowSize(channel.lwsize_max);
}
break;
case SSH_MSG_CHANNEL_WINDOW_ADJUST:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel == null)
{
break;
}
channel.addRemoteWindowSize(buf.getInt());
break;
case SSH_MSG_CHANNEL_EOF:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel != null)
{
//channel._eof_remote=true;
//channel.eof();
channel.eof_remote();
}
/*
packet.reset();
buf.putByte((byte)SSH_MSG_CHANNEL_EOF);
buf.putInt(channel.getRecipient());
write(packet);
*/
break;
case SSH_MSG_CHANNEL_CLOSE:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel != null)
{
// channel.close();
channel.disconnect();
}
/*
if(Channel.pool.Count==0){
thread=null;
}
*/
break;
case SSH_MSG_CHANNEL_OPEN_CONFIRMATION:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel == null)
{
//break;
}
channel.setRecipient(buf.getInt());
channel.setRemoteWindowSize(buf.getInt());
channel.setRemotePacketSize(buf.getInt());
break;
case SSH_MSG_CHANNEL_OPEN_FAILURE:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel == null)
{
//break;
}
int reason_code = buf.getInt();
//foo=buf.getString(); // additional textual information
//foo=buf.getString(); // language tag
channel.exitstatus = reason_code;
channel._close = true;
channel._eof_remote = true;
channel.setRecipient(0);
break;
case SSH_MSG_CHANNEL_REQUEST:
buf.getInt();
buf.getShort();
i = buf.getInt();
foo = buf.getString();
bool reply = (buf.getByte() != 0);
channel = Channel.getChannel(i, this);
if (channel != null)
{
byte reply_type = (byte)SSH_MSG_CHANNEL_FAILURE;
if ((new JavaString(foo)).Equals("exit-status"))
{
i = buf.getInt(); // exit-status
channel.setExitStatus(i);
// System.Console.WriteLine("exit-stauts: "+i);
// channel.close();
reply_type = (byte)SSH_MSG_CHANNEL_SUCCESS;
}
if (reply)
{
packet.reset();
buf.putByte(reply_type);
buf.putInt(channel.getRecipient());
write(packet);
}
}
else
{
}
break;
case SSH_MSG_CHANNEL_OPEN:
buf.getInt();
buf.getShort();
foo = buf.getString();
JavaString ctyp = new JavaString(foo);
//System.Console.WriteLine("type="+ctyp);
if (!new JavaString("forwarded-tcpip").Equals(ctyp) &&
!(new JavaString("x11").Equals(ctyp) && x11_forwarding))
{
Console.WriteLine("Session.run: CHANNEL OPEN " + ctyp);
throw new IOException("Session.run: CHANNEL OPEN " + ctyp);
}
else
{
channel = Channel.getChannel(ctyp);
addChannel(channel);
channel.getData(buf);
channel.init();
packet.reset();
buf.putByte((byte)SSH_MSG_CHANNEL_OPEN_CONFIRMATION);
buf.putInt(channel.getRecipient());
buf.putInt(channel.id);
buf.putInt(channel.lwsize);
buf.putInt(channel.lmpsize);
write(packet);
JavaThread tmp = new JavaThread(channel);
tmp.Name("Channel " + ctyp + " " + host);
tmp.Start();
break;
}
case SSH_MSG_CHANNEL_SUCCESS:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel == null)
{
break;
}
channel.reply = 1;
break;
case SSH_MSG_CHANNEL_FAILURE:
buf.getInt();
buf.getShort();
i = buf.getInt();
channel = Channel.getChannel(i, this);
if (channel == null)
{
break;
}
channel.reply = 0;
break;
case SSH_MSG_GLOBAL_REQUEST:
buf.getInt();
buf.getShort();
foo = buf.getString(); // request name
reply = (buf.getByte() != 0);
if (reply)
{
packet.reset();
buf.putByte((byte)SSH_MSG_REQUEST_FAILURE);
write(packet);
}
break;
case SSH_MSG_REQUEST_FAILURE:
case SSH_MSG_REQUEST_SUCCESS:
JavaThread t = grr.getThread();
if (t != null)
{
grr.setReply(msgType == SSH_MSG_REQUEST_SUCCESS ? 1 : 0);
t.Interrupt();
}
break;
default:
Console.WriteLine("Session.run: unsupported type " + msgType);
throw new IOException("Unknown SSH message type " + msgType);
}
}
}
catch (Exception)
{
//System.Console.WriteLine("# Session.run");
//e.printStackTrace();
}
try
{
disconnect();
}
catch (NullReferenceException)
{
//System.Console.WriteLine("@1");
//e.printStackTrace();
}
catch (Exception)
{
//System.Console.WriteLine("@2");
//e.printStackTrace();
}
_isConnected = false;
}
public override void start()
{
try
{
Request request;
if (xforwading)
{
request = new RequestX11();
request.request(session, this);
}
if (pty)
{
request = new RequestPtyReq();
request.request(session, this);
}
request = new RequestShell();
request.request(session, this);
}
catch //(System.Exception e)
{
throw new JSchException("ChannelShell");
}
thread = new JavaThread(this);
thread.Name("Shell for " + session.host);
thread.Start();
}
/*
public void finalize() throws Throwable{
disconnect();
jsch=null;
}
*/
public void disconnect()
{
if (!_isConnected) return;
//System.Console.WriteLine(this+": disconnect");
//Thread.dumpStack();
/*
for(int i=0; i<Channel.pool.Count; i++){
try{
Channel c=((Channel)(Channel.pool[i]));
if(c.session==this) c.eof();
}
catch(System.Exception e){
}
}
*/
Channel.disconnect(this);
_isConnected = false;
PortWatcher.delPort(this);
ChannelForwardedTCPIP.delPort(this);
lock (connectThread)
{
connectThread.Interrupt();
connectThread = null;
}
thread = null;
try
{
if (io != null)
{
if (io.ins != null) io.ins.Close();
if (io.outs != null) io.outs.Close();
if (io.outs_ext != null) io.outs_ext.Close();
}
if (proxy == null)
{
if (socket != null)
socket.Close();
}
else
{
lock (proxy)
{
proxy.Close();
}
proxy = null;
}
}
catch (Exception)
{
// e.printStackTrace();
}
io = null;
socket = null;
// lock(jsch.pool){
// jsch.pool.removeElement(this);
// }
jsch.removeSession(this);
//System.gc();
}
internal void setThread(JavaThread thread)
{
this.thread = thread;
this.reply = -1;
}
public void connect(int connectTimeout)
{
if (_isConnected)
{
throw new JSchException("session is already connected");
}
io = new IO();
if (random == null)
{
try
{
var c = Type.GetType(getConfig("random"));
random = (Random)Activator.CreateInstance(c);
}
catch (Exception e)
{
Console.Error.WriteLine("connect: random " + e);
}
}
Packet.setRandom(random);
try
{
int i, j;
// int pad = 0;
if (proxy == null)
{
proxy = jsch.getProxy(host);
if (proxy != null)
{
lock (proxy)
{
proxy.Close();
}
}
}
if (proxy == null)
{
Stream In;
Stream Out;
if (socket_factory == null)
{
socket = Util.createSocket(host, port, connectTimeout);
In = socket.getInputStream();
Out = socket.getOutputStream();
}
else
{
socket = socket_factory.createSocket(host, port);
In = socket_factory.getInputStream(socket);
Out = socket_factory.getOutputStream(socket);
}
//if(timeout>0){ socket.setSoTimeout(timeout); }
socket.setTcpNoDelay(true);
io.setInputStream(In);
io.setOutputStream(Out);
}
else
{
lock (proxy)
{
proxy.Connect(socket_factory, host, port, connectTimeout);
io.setInputStream(proxy.InputStream);
io.setOutputStream(proxy.OutputStream);
socket = proxy.Socket;
}
}
if (connectTimeout > 0 && socket != null)
{
socket.setSoTimeout(connectTimeout);
}
_isConnected = true;
while (true)
{
i = 0;
j = 0;
while (i < buf.buffer.Length)
{
j = io.getByte();
if (j < 0) break;
buf.buffer[i] = (byte)j;
i++;
if (j == 10) break;
}
if (j < 0)
{
throw new JSchException("connection is closed by foreign host");
}
if (buf.buffer[i - 1] == 10)
{
// 0x0a
i--;
if (buf.buffer[i - 1] == 13)
{
// 0x0d
i--;
}
}
if (i > 4 && (i != buf.buffer.Length) &&
(buf.buffer[0] != 'S' || buf.buffer[1] != 'S' ||
buf.buffer[2] != 'H' || buf.buffer[3] != '-'))
{
//System.err.println(new String(buf.buffer, 0, i);
continue;
}
if (i == buf.buffer.Length ||
i < 7 || // SSH-1.99 or SSH-2.0
(buf.buffer[4] == '1' && buf.buffer[6] != '9') // SSH-1.5
)
{
throw new JSchException("invalid server's version String");
}
break;
}
V_S = new byte[i];
Array.Copy(buf.buffer, 0, V_S, 0, i);
{
// Some Cisco devices will miss to read '\n' if it is sent separately.
byte[] foo = new byte[V_C.Length + 1];
Array.Copy(V_C, 0, foo, 0, V_C.Length);
foo[foo.Length - 1] = (byte)'\n';
io.put(foo, 0, foo.Length);
}
buf = read(buf);
//System.Console.WriteLine("read: 20 ? "+buf.buffer[5]);
if (buf.buffer[5] != SSH_MSG_KEXINIT)
{
throw new JSchException("invalid protocol: " + buf.buffer[5]);
}
KeyExchange kex = receive_kexinit(buf);
while (true)
{
buf = read(buf);
if (kex.getState() == buf.buffer[5])
{
bool result = kex.next(buf);
if (!result)
{
//System.Console.WriteLine("verify: "+result);
in_kex = false;
throw new JSchException("verify: " + result);
}
}
else
{
in_kex = false;
throw new JSchException("invalid protocol(kex): " + buf.buffer[5]);
}
if (kex.getState() == KeyExchange.STATE_END)
{
break;
}
}
try
{
checkHost(host, kex);
}
catch (JSchException ee)
{
in_kex = false;
throw ee;
}
send_newkeys();
// receive SSH_MSG_NEWKEYS(21)
buf = read(buf);
//System.Console.WriteLine("read: 21 ? "+buf.buffer[5]);
if (buf.buffer[5] == SSH_MSG_NEWKEYS)
{
receive_newkeys(buf, kex);
}
else
{
in_kex = false;
throw new JSchException("invalid protocol(newkyes): " + buf.buffer[5]);
}
bool auth = false;
bool auth_cancel = false;
UserAuthNone usn = new UserAuthNone(userinfo);
auth = usn.start(this);
String methods = null;
if (!auth)
{
methods = usn.getMethods();
if (methods != null)
{
methods = methods.ToLower();
}
else
{
// methods: publickey,password,keyboard-interactive
methods = "publickey,password,keyboard-interactive";
}
}
while (true)
{
while (!auth && methods != null && methods.Length > 0)
{
UserAuth us = null;
if (methods.StartsWith("publickey"))
{
lock (jsch.identities)
{
if (jsch.identities.Count > 0)
{
us = new UserAuthPublicKey(userinfo);
}
}
}
else if (methods.StartsWith("keyboard-interactive"))
{
if (userinfo is UIKeyboardInteractive)
{
us = new UserAuthKeyboardInteractive(userinfo);
}
}
else if (methods.StartsWith("password"))
{
us = new UserAuthPassword(userinfo);
}
if (us != null)
{
try
{
auth = us.start(this);
auth_cancel = false;
}
catch (JSchAuthCancelException)
{
auth_cancel = true;
}
catch (JSchPartialAuthException ee)
{
methods = ee.getMethods();
auth_cancel = false;
continue;
}
catch (Exception ee)
{
Console.WriteLine("ee: " + ee);
}
}
if (!auth)
{
int comma = methods.IndexOf(",");
if (comma == -1) break;
methods = methods.Substring(comma + 1);
}
}
break;
}
if (connectTimeout > 0 || timeout > 0)
{
socket.setSoTimeout(timeout);
}
if (auth)
{
isAuthed = true;
connectThread = new JavaThread(this);
connectThread.Name("Connect thread " + host + " session");
connectThread.Start();
return;
}
if (auth_cancel)
throw new JSchException("Auth cancel");
throw new JSchException("Auth fail");
}
catch (Exception e)
{
in_kex = false;
if (_isConnected)
{
try
{
packet.reset();
buf.putByte((byte)SSH_MSG_DISCONNECT);
buf.putInt(3);
buf.putString(new JavaString(e.ToString()).GetBytes());
buf.putString(new JavaString("en").GetBytes());
write(packet);
disconnect();
}
catch (Exception) { }
}
_isConnected = false;
if (e is JSchException) throw (JSchException)e;
throw new JSchException("Session.connect: " + e);
}
}
public void setPortForwardingL(JavaString boundaddress, int lport, JavaString host, int rport, ServerSocketFactory ssf)
{
PortWatcher pw = PortWatcher.addPort(this, boundaddress, lport, host, rport, ssf);
JavaThread tmp = new JavaThread(pw);
tmp.Name("PortWatcher Thread for " + host);
tmp.Start();
}
protected void addRunningThread(JavaThread thread)
{
if (threadList == null) threadList = new ArrayList();
threadList.Add(thread);
}