Пример #1
0
        public virtual void connect()
        {
            if (!session.isConnected())
            {
                throw new SshClientException("session is down");
            }
            try {
                Buffer buf    = new Buffer(100);
                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(this.type);
                buf.putInt(this.id);
                buf.putInt(this.lwsize);
                buf.putInt(this.lmpsize);
                session.write(packet);

                int retry = 1000;
                while (this.getRecipient() == -1 &&
                       session.isConnected() &&
                       retry > 0)
                {
                    try {
                        ThreadAux.Sleep(50);
                    }
                    catch (Exception) {
                    }
                    retry--;
                }
                if (!session.isConnected())
                {
                    throw new SshClientException("session is down");
                }
                if (retry == 0)
                {
                    throw new SshClientException("channel is not opened.");
                }
                connected = true;
                start();
            }
            catch (Exception e) {
                connected = false;
                if (e is SshClientException)
                {
                    throw (SshClientException)e;
                }
            }
        }
Пример #2
0
        public void request(Session session, AChannel 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(StringAux.getBytesUTF8("subsystem"));
            buf.putByte((byte)(waitForReply() ? 1 : 0));
            buf.putString(StringAux.getBytesUTF8(subsystem));
            session.write(packet);

            if (reply)
            {
                while (channel.reply == -1)
                {
                    try {
                        ThreadAux.Sleep(10);
                    }
                    catch (System.Exception) {
                    }
                }
                if (channel.reply == 0)
                {
                    throw new SshClientException("failed to send subsystem request");
                }
            }
        }
Пример #3
0
        public override void connect()
        {
            try {
                if (!session.isConnected())
                {
                    throw new SshClientException("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(StringAux.getBytes("direct-tcpip"));
                buf.putInt(id);
                buf.putInt(lwsize);
                buf.putInt(lmpsize);
                buf.putString(StringAux.getBytes(host));
                buf.putInt(port);
                buf.putString(StringAux.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);
                        ThreadAux.Sleep(50);
                        retry--;
                    }
                }
                catch {
                }

                if (!session.isConnected())
                {
                    throw new SshClientException("session is down");
                }
                if (retry == 0 || this._eof_remote)
                {
                    throw new SshClientException("channel is not opened.");
                }

                /*
                 * if(this.eof_remote){      // failed to open
                 * disconnect();
                 * return;
                 * }
                 */

                connected = true;

                thread = new ThreadAux(this);
                thread.start();
            }
            catch (Exception e) {
                io.close();
                io = null;
                AChannel.del(this);
                if (e is SshClientException)
                {
                    throw (SshClientException)e;
                }
            }
        }