//using System;
using System.IO;
using System.Runtime.CompilerServices;
using Tamir.SharpSsh.java;
using Tamir.SharpSsh.java.util;
using Tamir.SharpSsh.java.net;
using Tamir.SharpSsh.java.lang;
using ExceptionSystem.Exception;
using NullReferenceExceptionSystem.NullReferenceException;
using ThreadInterruptedExceptionSystem.Threading.ThreadInterruptedException;
namespace Tamir.SharpSsh.jsch{
public class Session : Runnable
{
private static String version="SharpSSH-"+Tamir.SharpSsh.SshBase.Version.ToString()+"-JSCH-0.1.28";
// http://ietf.org/internet-drafts/draft-ietf-secsh-assignednumbers-01.txt
internal const int SSH_MSG_DISCONNECT= 1;
internal const int SSH_MSG_IGNORE= 2;
internal const int SSH_MSG_UNIMPLEMENTED= 3;
internal const int SSH_MSG_DEBUG= 4;
internal const int SSH_MSG_SERVICE_REQUEST= 5;
internal const int SSH_MSG_SERVICE_ACCEPT= 6;
internal const int SSH_MSG_KEXINIT= 20;
internal const int SSH_MSG_NEWKEYS= 21;
internal const int SSH_MSG_KEXDH_INIT= 30;
internal const int SSH_MSG_KEXDH_REPLY= 31;
internal const int SSH_MSG_KEX_DH_GEX_GROUP= 31;
internal const int SSH_MSG_KEX_DH_GEX_INIT= 32;
internal const int SSH_MSG_KEX_DH_GEX_REPLY= 33;
internal const int SSH_MSG_KEX_DH_GEX_REQUEST= 34;
internal const int SSH_MSG_USERAUTH_REQUEST= 50;
internal const int SSH_MSG_USERAUTH_FAILURE= 51;
internal const int SSH_MSG_USERAUTH_SUCCESS= 52;
internal const int SSH_MSG_USERAUTH_BANNER= 53;
internal const int SSH_MSG_USERAUTH_INFO_REQUEST= 60;
internal const int SSH_MSG_USERAUTH_INFO_RESPONSE= 61;
internal const int SSH_MSG_USERAUTH_PK_OK= 60;
internal const int SSH_MSG_GLOBAL_REQUEST= 80;
internal const int SSH_MSG_REQUEST_SUCCESS= 81;
internal const int SSH_MSG_REQUEST_FAILURE= 82;
internal const int SSH_MSG_CHANNEL_OPEN= 90;
internal const int SSH_MSG_CHANNEL_OPEN_CONFIRMATION= 91;
internal const int SSH_MSG_CHANNEL_OPEN_FAILURE= 92;
internal const int SSH_MSG_CHANNEL_WINDOW_ADJUST= 93;
internal const int SSH_MSG_CHANNEL_DATA= 94;
internal const int SSH_MSG_CHANNEL_EXTENDED_DATA= 95;
internal const int SSH_MSG_CHANNEL_EOF= 96;
internal const int SSH_MSG_CHANNEL_CLOSE= 97;
internal const int SSH_MSG_CHANNEL_REQUEST= 98;
internal const int SSH_MSG_CHANNEL_SUCCESS= 99;
internal const int SSH_MSG_CHANNEL_FAILURE= 100;
private byte[] V_S; // server version
private byte[] V_C=("SSH-2.0-"+version).getBytes(); // client version
private byte[] I_C; // the payload of the client's SSH_MSG_KEXINIT
private byte[] I_S; // the payload of the server's SSH_MSG_KEXINIT
private byte[] K_S; // the host key
private byte[] session_id;
private byte[] IVc2s;
private byte[] IVs2c;
private byte[] Ec2s;
private byte[] Es2c;
private byte[] MACc2s;
private byte[] MACs2c;
private int seqi=0;
private int seqo=0;
private Cipher s2ccipher;
private Cipher c2scipher;
private MAC s2cmac;
private MAC c2smac;
private byte[] mac_buf;
private Compression deflater;
private Compression inflater;
private IO io;
private Socket socket;
private int timeout=0;
private bool _isConnected=false;
private bool isAuthed=false;
private Thread connectThread=null;
internal bool x11_forwarding=false;
internal Stream In=null;
internal Stream Out=null;
internal static Random random;
internal Buffer buf;
internal Packet packet;
internal SocketFactory socket_factory=null;
private Hashtable config=null;
private Proxy proxy=null;
private UserInfo userinfo;
internal String host="127.0.0.1";
internal int port=22;
internal String username=null;
internal String password=null;
internal JSch jsch;
internal Session(JSch jsch)
{
;
this.jsch=jsch;
buf=new Buffer();
packet=new Packet(buf);
}
public void connect()
{
connect(timeout);
}
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(socket_factory, host, port, connectTimeout);
io.setInputStream(proxy.getInputStream());
io.setOutputStream(proxy.getOutputStream());
socket=proxy.getSocket();
}
}
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]; Tamir.SharpSsh.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];
Tamir.SharpSsh.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
{
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.toLowerCase();
}
else
{
// methods: publickey,password,keyboard-interactive
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)
{
in_kex=false;
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 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()];
}
Tamir.SharpSsh.java.System.arraycopy(buf.buffer, buf.s, I_S, 0, I_S.Length);
/*
try{
byte[] tmp=new byte[I_S.Length];
Tamir.SharpSsh.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;
}
private bool in_kex=false;
public void rekey()
{
send_kexinit();
}
private void send_kexinit()
{
if(in_kex) return;
in_kex=true;
// byte SSH_MSG_KEXINIT(20)
// byte[16] cookie (random bytes)
// String kex_algorithms
// String server_host_key_algorithms
// String encryption_algorithms_client_to_server
// String encryption_algorithms_server_to_client
// String mac_algorithms_client_to_server
// String mac_algorithms_server_to_client
// String compression_algorithms_client_to_server
// String compression_algorithms_server_to_client
// String languages_client_to_server
// String languages_server_to_client
packet.reset();
buf.putByte((byte) SSH_MSG_KEXINIT);
lock(random)
{
random.fill(buf.buffer, buf.index, 16); buf.skip(16);
}
buf.putString(getConfig("kex").getBytes());
buf.putString(getConfig("server_host_key").getBytes());
buf.putString(getConfig("cipher.c2s").getBytes());
buf.putString(getConfig("cipher.s2c").getBytes());
buf.putString(getConfig("mac.c2s").getBytes());
buf.putString(getConfig("mac.s2c").getBytes());
buf.putString(getConfig("compression.c2s").getBytes());
buf.putString(getConfig("compression.s2c").getBytes());
buf.putString(getConfig("lang.c2s").getBytes());
buf.putString(getConfig("lang.s2c").getBytes());
buf.putByte((byte)0);
buf.putInt(0);
buf.setOffSet(5);
I_C=new byte[buf.getLength()];
buf.getByte(I_C);
write(packet);
}
private void send_newkeys()
{
// send SSH_MSG_NEWKEYS(21)
packet.reset();
buf.putByte((byte)SSH_MSG_NEWKEYS);
write(packet);
}
private void checkHost(String host, KeyExchange kex)
{
String shkc=getConfig("StrictHostKeyChecking");
//System.Console.WriteLine("shkc: "+shkc);
byte[] K_S=kex.getHostKey();
String key_type=kex.getKeyType();
String key_fprint=kex.getFingerPrint();
hostkey=new HostKey(host, K_S);
HostKeyRepository hkr=jsch.getHostKeyRepository();
int i=0;
lock(hkr)
{
i=hkr.check(host, K_S);
}
bool insert=false;
if((shkc.equals("ask") || shkc.equals("yes")) &&
i==HostKeyRepository.CHANGED)
{
String file=null;
lock(hkr)
{
file=hkr.getKnownHostsRepositoryID();
}
if(file==null){file="known_hosts";}
String message=
"WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!\n"+
"IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!\n"+
"Someone could be eavesdropping on you right now (man-in-the-middle attack)!\n"+
"It is also possible that the "+key_type+" host key has just been changed.\n"+
"The fingerprint for the "+key_type+" key sent by the remote host is\n"+
key_fprint+".\n"+
"Please contact your system administrator.\n"+
"Add correct host key in "+file+" to get rid of this message.";
bool b=false;
if(userinfo!=null)
{
//userinfo.showMessage(message);
b=userinfo.promptYesNo(message+
"\nDo you want to delete the old key and insert the new key?");
}
//throw new JSchException("HostKey has been changed: "+host);
if(!b)
{
throw new JSchException("HostKey has been changed: "+host);
}
else
{
lock(hkr)
{
hkr.remove(host,
(key_type.equals("DSA") ? "ssh-dss" : "ssh-rsa"),
null);
insert=true;
}
}
}
// bool insert=false;
if((shkc.equals("ask") || shkc.equals("yes")) &&
(i!=HostKeyRepository.OK) && !insert)
{
if(shkc.equals("yes"))
{
throw new JSchException("reject HostKey: "+host);
}
//System.Console.WriteLine("finger-print: "+key_fprint);
if(userinfo!=null)
{
bool foo=userinfo.promptYesNo(
"The authenticity of host '"+host+"' can't be established.\n"+
key_type+" key fingerprint is "+key_fprint+".\n"+
"Are you sure you want to continue connecting?"
);
if(!foo)
{
throw new JSchException("reject HostKey: "+host);
}
insert=true;
}
else
{
if(i==HostKeyRepository.NOT_INCLUDED)
throw new JSchException("UnknownHostKey: "+host+". "+key_type+" key fingerprint is "+key_fprint);
else throw new JSchException("HostKey has been changed: "+host);
}
}
if(shkc.equals("no") &&
HostKeyRepository.NOT_INCLUDED==i)
{
insert=true;
}
if(insert)
{
lock(hkr)
{
hkr.add(host, K_S, userinfo);
}
}
}
//public void start(){ (new Thread(this)).start(); }
public Channel openChannel(String type)
{
if(!_isConnected)
{
throw new JSchException("session is down");
}
try
{
Channel channel=Channel.getChannel(type);
addChannel(channel);
channel.init();
return channel;
}
catch(Exception e)
{
System.Console.WriteLine(e);
}
return null;
}
// encode will bin invoked in write with synchronization.
public void encode(Packet packet)
{
//System.Console.WriteLine("encode: "+packet.buffer.buffer[5]);
//System.Console.WriteLine(" "+packet.buffer.index);
//if(packet.buffer.buffer[5]==96){
//Thread.dumpStack();
//}
if(deflater!=null)
{
packet.buffer.index=deflater.compress(packet.buffer.buffer,
5, packet.buffer.index);
}
if(c2scipher!=null)
{
packet.padding(c2scipher.getIVSize());
int pad=packet.buffer.buffer[4];
lock(random)
{
random.fill(packet.buffer.buffer, packet.buffer.index-pad, pad);
}
}
else
{
packet.padding(8);
}
byte[] mac=null;
if(c2smac!=null)
{
c2smac.update(seqo);
c2smac.update(packet.buffer.buffer, 0, packet.buffer.index);
mac=c2smac.doFinal();
}
if(c2scipher!=null)
{
byte[] buf=packet.buffer.buffer;
c2scipher.update(buf, 0, packet.buffer.index, buf, 0);
}
if(mac!=null)
{
packet.buffer.putByte(mac);
}
}
int[] uncompress_len=new int[1];
private int cipher_size=8;
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 || (buf.index+j)>buf.buffer.Length)
{
throw new IOException("invalid data");
}
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);
}
}
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))
{
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;
}
internal byte[] getSessionId()
{
return session_id;
}
private void receive_newkeys(Buffer buf, KeyExchange kex)
{
// send_newkeys();
updateKeys(kex);
in_kex=false;
}
private void updateKeys(KeyExchange kex)
{
byte[] K=kex.getK();
byte[] H=kex.getH();
HASH hash=kex.getHash();
String[] guess=kex._guess;
if(session_id==null)
{
session_id=new byte[H.Length];
Tamir.SharpSsh.java.System.arraycopy(H, 0, session_id, 0, H.Length);
}
/*
Initial IV client to server: HASH (K || H || "A" || session_id)
Initial IV server to client: HASH (K || H || "B" || session_id)
Encryption key client to server: HASH (K || H || "C" || session_id)
Encryption key server to client: HASH (K || H || "D" || session_id)
Integrity key client to server: HASH (K || H || "E" || session_id)
Integrity key server to client: HASH (K || H || "F" || session_id)
*/
buf.reset();
buf.putMPInt(K);
buf.putByte(H);
buf.putByte((byte)0x41);
buf.putByte(session_id);
hash.update(buf.buffer, 0, buf.index);
IVc2s=hash.digest();
int j=buf.index-session_id.Length-1;
buf.buffer[j]++;
hash.update(buf.buffer, 0, buf.index);
IVs2c=hash.digest();
buf.buffer[j]++;
hash.update(buf.buffer, 0, buf.index);
Ec2s=hash.digest();
buf.buffer[j]++;
hash.update(buf.buffer, 0, buf.index);
Es2c=hash.digest();
buf.buffer[j]++;
hash.update(buf.buffer, 0, buf.index);
MACc2s=hash.digest();
buf.buffer[j]++;
hash.update(buf.buffer, 0, buf.index);
MACs2c=hash.digest();
try
{
Class c;
c=Class.forName(getConfig(guess[KeyExchange.PROPOSAL_ENC_ALGS_STOC]));
s2ccipher=(Cipher)(c.newInstance());
while(s2ccipher.getBlockSize()>Es2c.Length)
{
buf.reset();
buf.putMPInt(K);
buf.putByte(H);
buf.putByte(Es2c);
hash.update(buf.buffer, 0, buf.index);
byte[] foo=hash.digest();
byte[] bar=new byte[Es2c.Length+foo.Length];
Tamir.SharpSsh.java.System.arraycopy(Es2c, 0, bar, 0, Es2c.Length);
Tamir.SharpSsh.java.System.arraycopy(foo, 0, bar, Es2c.Length, foo.Length);
Es2c=bar;
}
s2ccipher.init(Cipher.DECRYPT_MODE, Es2c, IVs2c);
cipher_size=s2ccipher.getIVSize();
c=Class.forName(getConfig(guess[KeyExchange.PROPOSAL_MAC_ALGS_STOC]));
s2cmac=(MAC)(c.newInstance());
s2cmac.init(MACs2c);
mac_buf=new byte[s2cmac.getBlockSize()];
c=Class.forName(getConfig(guess[KeyExchange.PROPOSAL_ENC_ALGS_CTOS]));
c2scipher=(Cipher)(c.newInstance());
while(c2scipher.getBlockSize()>Ec2s.Length)
{
buf.reset();
buf.putMPInt(K);
buf.putByte(H);
buf.putByte(Ec2s);
hash.update(buf.buffer, 0, buf.index);
byte[] foo=hash.digest();
byte[] bar=new byte[Ec2s.Length+foo.Length];
Tamir.SharpSsh.java.System.arraycopy(Ec2s, 0, bar, 0, Ec2s.Length);
Tamir.SharpSsh.java.System.arraycopy(foo, 0, bar, Ec2s.Length, foo.Length);
Ec2s=bar;
}
c2scipher.init(Cipher.ENCRYPT_MODE, Ec2s, IVc2s);
c=Class.forName(getConfig(guess[KeyExchange.PROPOSAL_MAC_ALGS_CTOS]));
c2smac=(MAC)(c.newInstance());
c2smac.init(MACc2s);
if(!guess[KeyExchange.PROPOSAL_COMP_ALGS_CTOS].equals("none"))
{
String foo=getConfig(guess[KeyExchange.PROPOSAL_COMP_ALGS_CTOS]);
if(foo!=null)
{
try
{
c=Class.forName(foo);
deflater=(Compression)(c.newInstance());
int level=6;
try{ level=Integer.parseInt(getConfig("compression_level"));}
catch(Exception ee){ }
deflater.init(Compression.DEFLATER, level);
}
catch(Exception ee)
{
System.Console.Error.WriteLine(foo+" isn't accessible.");
}
}
}
else
{
if(deflater!=null)
{
deflater=null;
}
}
if(!guess[KeyExchange.PROPOSAL_COMP_ALGS_STOC].equals("none"))
{
String foo=getConfig(guess[KeyExchange.PROPOSAL_COMP_ALGS_STOC]);
if(foo!=null)
{
try
{
c=Class.forName(foo);
inflater=(Compression)(c.newInstance());
inflater.init(Compression.INFLATER, 0);
}
catch(Exception ee)
{
System.Console.Error.WriteLine(foo+" isn't accessible.");
}
}
}
else
{
if(inflater!=null)
{
inflater=null;
}
}
}
catch(Exception e){ System.Console.Error.WriteLine("updatekeys: "+e); }
}
public void write(Packet packet, Channel c, int length)
{
while(true)
{
if(in_kex)
{
try{Thread.Sleep(10);}
catch(ThreadInterruptedException e){};
continue;
}
lock(c)
{
if(c.rwsize>=length)
{
c.rwsize-=length;
break;
}
}
if(c._close || !c.isConnected())
{
throw new IOException("channel is broken");
}
bool sendit=false;
int s=0;
byte command=0;
int recipient=-1;
lock(c)
{
if(c.rwsize>0)
{
int len=c.rwsize;
if(len>length)
{
len=length;
}
if(len!=length)
{
s=packet.shift(len, (c2smac!=null ? c2smac.getBlockSize() : 0));
}
command=packet.buffer.buffer[5];
recipient=c.getRecipient();
length-=len;
c.rwsize-=len;
sendit=true;
}
}
if(sendit)
{
_write(packet);
if(length==0)
{
return;
}
packet.unshift(command, recipient, s, length);
lock(c)
{
if(c.rwsize>=length)
{
c.rwsize-=length;
break;
}
}
}
try{Thread.Sleep(100);}
catch(ThreadInterruptedException e){};
}
_write(packet);
}
/*
public lockpublic void write(Packet packet) {
encode(packet);
if(io!=null){
io.put(packet);
seqo++;
}
}
*/
public void write(Packet packet)
{
// System.Console.WriteLine("in_kex="+in_kex+" "+(packet.buffer.buffer[5]));
while(in_kex)
{
byte command=packet.buffer.buffer[5];
//System.Console.WriteLine("command: "+command);
if(command==SSH_MSG_KEXINIT ||
command==SSH_MSG_NEWKEYS ||
command==SSH_MSG_KEXDH_INIT ||
command==SSH_MSG_KEXDH_REPLY ||
command==SSH_MSG_DISCONNECT ||
command==SSH_MSG_KEX_DH_GEX_GROUP ||
command==SSH_MSG_KEX_DH_GEX_INIT ||
command==SSH_MSG_KEX_DH_GEX_REPLY ||
command==SSH_MSG_KEX_DH_GEX_REQUEST)
{
break;
}
try{Thread.Sleep(10);}
catch(ThreadInterruptedException e){};
}
_write(packet);
}
[System.Runtime.CompilerServices.MethodImpl(MethodImplOptions.Synchronized)]
private void _write(Packet packet)
{
encode(packet);
if(io!=null)
{
io.put(packet);
seqo++;
}
}
Runnable thread;
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 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.size(); i++){
try{
Channel c=((Channel)(Channel.pool.elementAt(i)));
if(c.session==this) c.eof();
}
catch(Exception e){
}
}
*/
Channel.disconnect(this);
_isConnected=false;
PortWatcher.delPort(this);
ChannelForwardedTCPIP.delPort(this);
lock(connectThread)
{
connectThread.yield();
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)
{
// e.printStackTrace();
}
io=null;
socket=null;
// lock(jsch.pool){
// jsch.pool.removeElement(this);
// }
jsch.removeSession(this);
//System.gc();
}
public void setPortForwardingL(int lport, String host, int rport)
{
setPortForwardingL("127.0.0.1", lport, host,rport);
}
public void setPortForwardingL(String boundaddress, int lport, String host, int rport)
{
setPortForwardingL(boundaddress, lport, host, rport, null);
}
public void setPortForwardingL(String boundaddress, int lport, String host, int rport, ServerSocketFactory ssf)
{
PortWatcher pw=PortWatcher.addPort(this, boundaddress, lport, host, rport, ssf);
Thread tmp=new Thread(pw);
tmp.setName("PortWatcher Thread for "+host);
tmp.start();
}
public void delPortForwardingL(int lport)
{
delPortForwardingL("127.0.0.1", lport);
}
public void delPortForwardingL(String boundaddress, int lport)
{
PortWatcher.delPort(this, boundaddress, lport);
}
public String[] getPortForwardingL()
{
return PortWatcher.getPortForwarding(this);
}
public void setPortForwardingR(int rport, String host, int lport)
{
setPortForwardingR(rport, host, lport, (SocketFactory)null);
}
public void setPortForwardingR(int rport, String host, int lport, SocketFactory sf)
{
ChannelForwardedTCPIP.addPort(this, rport, host, lport, sf);
setPortForwarding(rport);
}
public void setPortForwardingR(int rport, String daemon)
{
setPortForwardingR(rport, daemon, null);
}
public void setPortForwardingR(int rport, String daemon, System.Object[] arg)
{
ChannelForwardedTCPIP.addPort(this, rport, daemon, arg);
setPortForwarding(rport);
}
private class GlobalRequestReply
{
private Thread thread=null;
private int reply=-1;
internal void setThread(Thread thread)
{
this.thread=thread;
this.reply=-1;
}
internal Thread getThread(){ return thread; }
internal void setReply(int reply){ this.reply=reply; }
internal int getReply(){ return this.reply; }
}
private GlobalRequestReply grr=new GlobalRequestReply();
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 delPortForwardingR(int rport)
{
ChannelForwardedTCPIP.delPort(this, rport);
}
internal void addChannel(Channel channel)
{
channel.session=this;
}
public String getConfig(object name)
{
System.Object foo=null;
if(config!=null)
{
foo=config.get(name);
if(foo is String) return (String)foo;
if(foo is string) return (string)foo;
}
foo=jsch.getConfig(name.ToString());
if(foo is string) return (string)foo;
if(foo is String) return (String)foo;
return null;
}
// public Channel getChannel(){ return channel; }
public void setProxy(Proxy proxy){ this.proxy=proxy; }
public void setHost(String host){ this.host=host; }
public void setPort(int port){ this.port=port; }
internal void setUserName(String foo){ this.username=foo; }
public void setPassword(String foo){ this.password=foo; }
public void setUserInfo(UserInfo userinfo){ this.userinfo=userinfo; }
public void setInputStream(Stream In){ this.In=In; }
public void setOutputStream(Stream Out){ this.Out=Out; }
public void setX11Host(String host){ ChannelX11.setHost(host); }
public void setX11Port(int port){ ChannelX11.setPort(port); }
public void setX11Cookie(String cookie){ ChannelX11.setCookie(cookie); }
public void setConfig(System.Collections.Hashtable foo)
{
setConfig( new Hashtable( foo ) );
}
public void setConfig(Hashtable foo)
{
if(config==null) config=new Hashtable();
for(Enumeration e=foo.keys() ; e.hasMoreElements() ;)
{
object key=e.nextElement();
config.put(key, (foo.get(key)));
}
}
public void setSocketFactory(SocketFactory foo){ socket_factory=foo;}
public bool isConnected(){ return _isConnected; }
public int getTimeout(){ return timeout; }
public void setTimeout(int foo)
{
if(socket==null)
{
if(foo<0)
{
throw new JSchException("invalid timeout value");
}
this.timeout=foo;
return;
}
try
{
socket.setSoTimeout(foo);
timeout=foo;
}
catch(Exception e)
{
throw new JSchException(e.ToString());
}
}
public String getServerVersion()
{
return new String(V_S);
}
public String getClientVersion()
{
return new String(V_C);
}
public void setClientVersion(String cv)
{
V_C=cv.getBytes();
}
public void sendIgnore()
{
Buffer buf=new Buffer();
Packet packet=new Packet(buf);
packet.reset();
buf.putByte((byte)SSH_MSG_IGNORE);
write(packet);
}
private static byte[] keepalivemsg=new String("keepalive@jcraft.com").getBytes();
public void sendKeepAliveMsg()
{
Buffer buf=new Buffer();
Packet packet=new Packet(buf);
packet.reset();
buf.putByte((byte)SSH_MSG_GLOBAL_REQUEST);
buf.putString(keepalivemsg);
buf.putByte((byte)1);
write(packet);
}
private HostKey hostkey=null;
public HostKey getHostKey(){ return hostkey; }
public String getHost(){return host;}
public String getUserName(){return username;}
public int getPort(){return port;}
public String getMac()
{
String mac="";
if(s2cmac!=null)
mac = s2cmac.getName();
return mac;
}
public String getCipher()
{
String cipher="";
if(s2ccipher!=null)
cipher= s2ccipher.ToString();
return cipher;
}
public int BufferLength
{
get{return this.buf.buffer.Length;}
}
}
}
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