Esempio n. 1
0
 /// <summary>
 /// Send an authentication request. This method will be called from the <see cref="Maverick.SSH2.SSH2AuthenticationClient.Authenticate"/>
 /// method to initiate the authentication proceedure.
 /// </summary>
 /// <param name="username"></param>
 /// <param name="servicename"></param>
 /// <param name="methodname"></param>
 /// <param name="requestdata"></param>
 public void SendRequest(String username,
                         String servicename,
                         String methodname,
                         byte[] requestdata)
 {
     try
     {
         SSHPacket packet = transport.GetSSHPacket(true);
         packet.WriteByte(SSH_MSG_USERAUTH_REQUEST);
         packet.WriteString(username);
         packet.WriteString(servicename);
         packet.WriteString(methodname);
         if (requestdata != null)
         {
             packet.WriteBytes(requestdata);
         }
         transport.SendMessage(packet);
     }
     catch (IOException ex)
     {
         throw new SSHException(ex.Message,
                                SSHException.INTERNAL_ERROR);
     }
 }
Esempio n. 2
0
        /// <summary>
        /// Opens a channel
        /// </summary>
        /// <param name="channel"></param>
        /// <param name="requestdata"></param>
        public void OpenChannel(SSH2Channel channel, byte[] requestdata)
        {
            lock (this)
            {
                try
                {
                    int channelid = AllocateChannel(channel);

                    if (channelid == -1)
                    {
                        throw new ChannelOpenException("Maximum number of channels exceeded",
                                                       ChannelOpenException.RESOURCE_SHORTAGE);
                    }

                    channel.Init(this, channelid);
                    SSHPacket packet = GetPacket();
                    packet.WriteByte(SSH_MSG_CHANNEL_OPEN);
                    packet.WriteString(channel.Name);
                    packet.WriteUINT32(channel.ChannelID);
                    packet.WriteUINT32(channel.WindowSize);
                    packet.WriteUINT32(channel.PacketSize);
                    if (requestdata != null)
                    {
                        packet.WriteBytes(requestdata);
                    }

#if DEBUG
                    System.Diagnostics.Trace.WriteLine("Sending SSH_MSG_CHANNEL_OPEN");
                    System.Diagnostics.Trace.WriteLine("Channelid=" + channel.ChannelID);
                    System.Diagnostics.Trace.WriteLine("Name=" + channel.Name);
#endif

                    transport.SendMessage(packet);

                    packet = channel.MessageStore.NextMessage(CHANNEL_OPEN_RESPONSE_MESSAGES);

#if DEBUG
                    System.Diagnostics.Trace.WriteLine("Received reply to SSH_MSG_CHANNEL_OPEN");
                    channel.LogMessage(packet);
#endif
                    if (packet.MessageID == SSH_MSG_CHANNEL_OPEN_FAILURE)
                    {
                        FreeChannel(channel);
                        int reason = (int)packet.ReadUINT32();
                        throw new ChannelOpenException(packet.ReadString(), reason);
                    }
                    else
                    {
                        int    remoteid     = (int)packet.ReadUINT32();
                        int    remotewindow = (int)packet.ReadUINT32();
                        int    remotepacket = (int)packet.ReadUINT32();
                        byte[] responsedata = new byte[packet.Available];
                        packet.ReadBytes(responsedata);

                        channel.Open(remoteid, remotewindow, remotepacket, responsedata);

                        return;
                    }
                }
                catch (System.IO.IOException ex)
                {
                    throw new SSHException(ex.Message, SSHException.INTERNAL_ERROR);
                }
            }
        }