public void request(Session session, Channel channel)
{
Buffer buf=new Buffer();
Packet packet=new Packet(buf);
bool reply=waitForReply();
if(reply)
{
channel.reply=-1;
}
packet.reset();
buf.putByte((byte)Session.SSH_MSG_CHANNEL_REQUEST);
buf.putInt(channel.getRecipient());
buf.putString( new String( "subsystem" ).getBytes());
buf.putByte((byte)(waitForReply() ? 1 : 0));
buf.putString(subsystem.getBytes());
session.write(packet);
if(reply)
{
while(channel.reply==-1)
{
try{Thread.sleep(10);}
catch//(System.Exception ee)
{
}
}
if(channel.reply==0)
{
throw new JSchException("failed to send subsystem request");
}
}
}
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 Thread(this);
thread.start();
}
catch (Exception e)
{
io.close();
io = null;
Channel.del(this);
if (e is JSchException)
{
throw (JSchException)e;
}
}
}
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(msgType!=94)
//System.Console.WriteLine("read: 94 ? "+msgType);
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 e)
{
//System.Console.WriteLine(e);
try{channel.disconnect();}
catch(Exception ee){}
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.size()==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 String(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();
String ctyp=new String(foo);
//System.Console.WriteLine("type="+ctyp);
if(!new String("forwarded-tcpip").equals(ctyp) &&
!(new String("x11").equals(ctyp) && x11_forwarding))
{
System.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);
Thread tmp=new Thread(channel);
tmp.setName("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:
Thread t=grr.getThread();
if(t!=null)
{
grr.setReply(msgType==SSH_MSG_REQUEST_SUCCESS? 1 : 0);
t.interrupt();
}
break;
default:
System.Console.WriteLine("Session.run: unsupported type "+msgType);
throw new IOException("Unknown SSH message type "+msgType);
}
}
}
catch(Exception e)
{
//System.Console.WriteLine("# Session.run");
//e.printStackTrace();
}
try
{
disconnect();
}
catch(NullReferenceException e)
{
//System.Console.WriteLine("@1");
//e.printStackTrace();
}
catch(Exception e)
{
//System.Console.WriteLine("@2");
//e.printStackTrace();
}
_isConnected=false;
}
public Buffer read(Buffer buf)
{
int j=0;
while(true)
{
buf.reset();
io.getByte(buf.buffer, buf.index, cipher_size); buf.index+=cipher_size;
if(s2ccipher!=null)
{
s2ccipher.update(buf.buffer, 0, cipher_size, buf.buffer, 0);
}
// j=((buf.buffer[0]<<24)&0xff000000)|
// ((buf.buffer[1]<<16)&0x00ff0000)|
// ((buf.buffer[2]<< 8)&0x0000ff00)|
// ((buf.buffer[3] )&0x000000ff);
j=Util.ToInt32( buf.buffer, 0 );
j=j-4-cipher_size+8;
if(j>0)
{
io.getByte(buf.buffer, buf.index, j); buf.index+=(j);
if(s2ccipher!=null)
{
s2ccipher.update(buf.buffer, cipher_size, j, buf.buffer, cipher_size);
}
}
/*
io.getByte(buf.buffer, buf.index, 8); buf.index+=8;
if(s2ccipher!=null){
s2ccipher.update(buf.buffer, 0, 8, buf.buffer, 0);
}
j=((buf.buffer[0]<<24)&0xff000000)|
((buf.buffer[1]<<16)&0x00ff0000)|
((buf.buffer[2]<< 8)&0x0000ff00)|
((buf.buffer[3] )&0x000000ff);
io.getByte(buf.buffer, buf.index, j-4); buf.index+=(j-4);
if(s2ccipher!=null){
s2ccipher.update(buf.buffer, 8, j-4, buf.buffer, 8);
}
*/
if(s2cmac!=null)
{
s2cmac.update(seqi);
s2cmac.update(buf.buffer, 0, buf.index);
byte[] result=s2cmac.doFinal();
io.getByte(mac_buf, 0, mac_buf.Length);
if(!Arrays.equals(result, mac_buf))
{
System.Console.WriteLine("mac error");
throw new IOException("MAC Error");
}
}
seqi++;
if(inflater!=null)
{
//inflater.uncompress(buf);
int pad=buf.buffer[4];
uncompress_len[0]=buf.index-5-pad;
byte[] foo=inflater.uncompress(buf.buffer, 5, uncompress_len);
if(foo!=null)
{
buf.buffer=foo;
buf.index=5+uncompress_len[0];
}
else
{
System.Console.Error.WriteLine("fail in inflater");
break;
}
}
int type=buf.buffer[5]&0xff;
//System.Console.WriteLine("read: "+type);
if(type==SSH_MSG_DISCONNECT)
{
buf.rewind();
buf.getInt();buf.getShort();
int reason_code=buf.getInt();
byte[] description=buf.getString();
byte[] language_tag=buf.getString();
/*
System.Console.Error.WriteLine("SSH_MSG_DISCONNECT:"+
" "+reason_code+
" "+new String(description)+
" "+new String(language_tag));
*/
throw new JSchException("SSH_MSG_DISCONNECT:"+
" "+reason_code+
" "+new String(description)+
" "+new String(language_tag));
//break;
}
else if(type==SSH_MSG_IGNORE)
{
}
else if(type==SSH_MSG_DEBUG)
{
buf.rewind();
buf.getInt();buf.getShort();
/*
byte always_display=(byte)buf.getByte();
byte[] message=buf.getString();
byte[] language_tag=buf.getString();
System.Console.Error.WriteLine("SSH_MSG_DEBUG:"+
" "+new String(message)+
" "+new String(language_tag));
*/
}
else if(type==SSH_MSG_CHANNEL_WINDOW_ADJUST)
{
buf.rewind();
buf.getInt();buf.getShort();
Channel c=Channel.getChannel(buf.getInt(), this);
if(c==null)
{
}
else
{
c.addRemoteWindowSize(buf.getInt());
}
}
else
{
break;
}
}
buf.rewind();
return buf;
}
private void setPortForwarding(int rport)
{
lock(grr)
{
Buffer buf=new Buffer(100); // ??
Packet packet=new Packet(buf);
try
{
// byte SSH_MSG_GLOBAL_REQUEST 80
// String "tcpip-forward"
// bool want_reply
// String address_to_bind
// uint32 port number to bind
packet.reset();
buf.putByte((byte) SSH_MSG_GLOBAL_REQUEST);
buf.putString( new String( "tcpip-forward" ).getBytes());
// buf.putByte((byte)0);
buf.putByte((byte)1);
buf.putString(new String("0.0.0.0").getBytes());
buf.putInt(rport);
write(packet);
}
catch(Exception e)
{
throw new JSchException(e.ToString());
}
grr.setThread(Thread.currentThread());
try{ Thread.Sleep(10000);}
catch(Exception e)
{
}
int reply=grr.getReply();
grr.setThread(null);
if(reply==0)
{
throw new JSchException("remote port forwarding failed for listen port "+rport);
}
}
}
public void connect(int connectTimeout)
{
if(_isConnected)
{
throw new JSchException("session is already connected");
}
io=new IO();
if(random==null)
{
try
{
Class c=Class.forName(getConfig("random"));
random=(Random)(c.newInstance());
}
catch(Exception e)
{
System.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(this, host, port, connectTimeout);
io.setInputStream(proxy.getInputStream());
io.setOutputStream(proxy.getOutputStream());
socket=proxy.getSocket();
}
}
if(connectTimeout>0 && socket!=null)
{
socket.setSoTimeout(connectTimeout);
}
_isConnected=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==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");
}
V_S=new byte[i]; Fireball.Ssh.java.System.arraycopy(buf.buffer, 0, V_S, 0, i);
//System.Console.WriteLine("V_S: ("+i+") ["+new String(V_S)+"]");
//io.put(V_C, 0, V_C.Length); io.put("\n".getBytes(), 0, 1);
{
// Some Cisco devices will miss to read '\n' if it is sent separately.
byte[] foo=new byte[V_C.Length+1];
Fireball.Ssh.java.System.arraycopy(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
{
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=usn.getMethods().toLowerCase();
// methods: publickey,password,keyboard-interactive
if(methods==null)
{
methods="publickey,password,keyboard-interactive";
}
loop:
while(true)
{
//System.Console.WriteLine("methods: "+methods);
while(!auth &&
methods!=null && methods.Length()>0)
{
//System.Console.WriteLine(" methods: "+methods);
UserAuth us=null;
if(methods.startsWith("publickey"))
{
//System.Console.WriteLine(" jsch.identities.size()="+jsch.identities.size());
lock(jsch.identities)
{
if(jsch.identities.size()>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 ee)
{
//System.Console.WriteLine(ee);
auth_cancel=true;
}
catch(JSchPartialAuthException ee)
{
methods=ee.getMethods();
//System.Console.WriteLine("PartialAuth: "+methods);
auth_cancel=false;
continue;//loop;
}
catch(RuntimeException ee)
{
throw ee;
}
catch(Exception ee)
{
System.Console.WriteLine("ee: "+ee); // SSH_MSG_DISCONNECT: 2 Too many authentication failures
}
}
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 Thread(this);
connectThread.setName("Connect thread "+host+" session");
connectThread.start();
return;
}
if(auth_cancel)
throw new JSchException("Auth cancel");
throw new JSchException("Auth fail");
}
catch(Exception e)
{
if(_isConnected)
{
try
{
packet.reset();
buf.putByte((byte)SSH_MSG_DISCONNECT);
buf.putInt(3);
buf.putString(new String(e.ToString()).getBytes());
buf.putString(new String("en").getBytes());
write(packet);
disconnect();
}
catch(Exception ee)
{
}
}
_isConnected=false;
//e.printStackTrace();
if(e is RuntimeException) throw (RuntimeException)e;
if(e is JSchException) throw (JSchException)e;
throw new JSchException("Session.connect: "+e);
}
}
private void receive_newkeys(Buffer buf, KeyExchange kex)
{
// send_newkeys();
updateKeys(kex);
in_kex=false;
}
private KeyExchange receive_kexinit(Buffer buf)
{
int j=buf.getInt();
if(j!=buf.getLength())
{ // packet was compressed and
buf.getByte(); // j is the size of deflated packet.
I_S=new byte[buf.index-5];
}
else
{
I_S=new byte[j-1-buf.getByte()];
}
Fireball.Ssh.java.System.arraycopy(buf.buffer, buf.s, I_S, 0, I_S.Length);
/*
try{
byte[] tmp=new byte[I_S.Length];
Fireball.Ssh.java.System.arraycopy(I_S, 0, tmp, 0, I_S.Length);
Buffer tmpb=new Buffer(tmp);
System.Console.WriteLine("I_S: len="+I_S.Length);
tmpb.setOffSet(17);
System.Console.WriteLine("kex: "+new String(tmpb.getString()));
System.Console.WriteLine("server_host_key: "+new String(tmpb.getString()));
System.Console.WriteLine("cipher.c2s: "+new String(tmpb.getString()));
System.Console.WriteLine("cipher.s2c: "+new String(tmpb.getString()));
System.Console.WriteLine("mac.c2s: "+new String(tmpb.getString()));
System.Console.WriteLine("mac.s2c: "+new String(tmpb.getString()));
System.Console.WriteLine("compression.c2s: "+new String(tmpb.getString()));
System.Console.WriteLine("compression.s2c: "+new String(tmpb.getString()));
System.Console.WriteLine("lang.c2s: "+new String(tmpb.getString()));
System.Console.WriteLine("lang.s2c: "+new String(tmpb.getString()));
System.Console.WriteLine("?: "+(tmpb.getByte()&0xff));
System.Console.WriteLine("??: "+tmpb.getInt());
}
catch(Exception e){
System.Console.WriteLine(e);
}
*/
send_kexinit();
String[] guess=KeyExchange.guess(I_S, I_C);
if(guess==null)
{
throw new JSchException("Algorithm negotiation fail");
}
if(!isAuthed &&
(guess[KeyExchange.PROPOSAL_ENC_ALGS_CTOS].equals("none") ||
(guess[KeyExchange.PROPOSAL_ENC_ALGS_STOC].equals("none"))))
{
throw new JSchException("NONE Cipher should not be chosen before authentification is successed.");
}
KeyExchange kex=null;
try
{
Class c=Class.forName(getConfig(guess[KeyExchange.PROPOSAL_KEX_ALGS]));
kex=(KeyExchange)(c.newInstance());
}
catch(Exception e){ System.Console.Error.WriteLine("kex: "+e); }
kex._guess=guess;
kex.init(this, V_S, V_C, I_S, I_C);
return kex;
}
internal Session(JSch jsch)
{
;
this.jsch=jsch;
buf=new Buffer();
packet=new Packet(buf);
}
public void sendIgnore()
{
Buffer buf=new Buffer();
Packet packet=new Packet(buf);
packet.reset();
buf.putByte((byte)SSH_MSG_IGNORE);
write(packet);
}
