OPC UA Client and Server
========================

The OPC UA stack is implemented in Lua and provides a LUA API for
application code. Interfacing to C code and hardware is typically
performed via a so called Lua binding. Lua bindings can be hand coded
or created automatically by using interface compilers.  See the
section `Lua Server Pages and C/C++
<../doc/?url=GettingStarted.html#LSPAndCSP>`_
for an introduction to Lua bindings and the section `Advanced Lua
Bindings
<../doc/en/C/reference/html/md_en_C_md_LuaBindings.html>`_
for a more detailed introduction.  We provide an `online web interface
wrapper <https://realtimelogic.info/swig/>`_ for the SWIG interface
compiler, which can be used initially if you plan on auto creating the
Lua bindings.

We provide ready to run `OPC-UA examples on GitHub
<https://github.com/RealTimeLogic/OPC-UA-Examples>`_. The combined OPC-UA
client and server stack is integrated in the pre-compiled `Mako
Server <https://makoserver.net/>`_, which you may `download
<https://makoserver.net/download/overview/>`_ and use for running the
OPC-UA examples.

Note: this is a draft document for Real Time Logic's new OPC-UA stack.

Features
--------

transport protocols:
~~~~~~~~~~~~~~~~~~~~

* **uatcp-uasc-uabinary** - OPC UA Secure Conversation UA Binary over TCP/IP
* **https-uabinary** - OPC UA Secure Conversation UA Binary over HTTPS
* **https-uajson** - OPC UA Secure Conversation UA JSON over HTTPS

*HTTPS transport protocols support only secure policy None.*

Secure polices
~~~~~~~~~~~~~~

* **None** - No security, no encryption
* **Basic128Rsa15** - RSA with SHA-1 and 128 bit encryption
* **Aes128Sha256RsaOaep** - AES with SHA-256 and 128 bit encryption
* **Basic256Sha256** - RSA with SHA-256 and 256 bit encryption

User authentication
~~~~~~~~~~~~~~~~~~~

* **Anonymous** - No user authentication
* **Username** - Username and password authentication
* **Certificate** - Certificate authentication
* **IssuedToken** - Token authentication: JWT, Azure, Oauth2, OPC-UA

Services
~~~~~~~~

  * OpenSecureChannel
  * CloseSecureChannel
  * CreateSession
  * ActivateSession
  * FindServers
  * GetEndpoints
  * CloseSession
  * Read
  * Write
  * AddNodes
  * Browse
  * TranslateBrowsePathsToNodeIds

Index
-----

.. toctree::

  server
  client
  server_config
  logging
  browsing
  adding_nodes
  read_write_data
  data_source
  thirdparty_clients
  secure_policy
  http
  application_certificate
  authentication/index
  client_reference
  init_opcua_project
  types