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# Extending pysmb For Other Frameworks

This page briefly describes the steps involved in extending pysmb for other frameworks.

In general, you need to take care of the SMB TCP connection setup, i.e. finding the IP address of the remote server and connect to the SMB/CIFS service. Then you need to read/write synchronously or asynchronously from and to the SMB socket. And you need to handle post-authentication callback methods, and from these methods, initiate file operations with the remote SMB/CIFS server.

Now the above steps in more technical details:
  1. Create a new class which subclasses the smb.base.SMB class. Most often, the connection setup will be part of the __init__ method.
  2. Override the write(self, data) method to provide an implementation which will write data to the socket.
  3. Write your own loop handling method to read data from the socket. Once data have been read, call feedData method with the parameter. The feedData method has its own internal buffer, so it can accept incomplete NetBIOS session packet data.
  4. Override

  > - onAuthOK method to include your own operations to perform when authentication is successful. You can initiate file operations in this method.
  > - onAuthFailed method to include your own processing on what to do when authentication fails. You can report this as an error, or to try a different NTLM authentication algorithm (use_ntlm_v2 parameter in the constructor).
  > - onNMBSessionFailed method to include your own processing on what to do when pysmb fails to setup the NetBIOS session with the remote server. Usually, this is due to a wrong remote_name parameter in the constructor.

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