Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/doc/userguide/lua/lua-usage.rst b/doc/userguide/lua/lua-usage.rst
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+Lua usage in Suricata
+=====================
+
+Lua scripting can be used in two components of Suricata. The first is in
+output and the second one in rules in the detection engine.
+
+Both features are using a list of functions to access the data extracted by
+Suricata. You can get the list of functions in the :ref:`lua-functions` page.
+
+.. note:: Currently, there is a difference in the ``needs`` key in the ``init`` function, depending on what is the usage: ``output`` or ``detection``. The list of available functions may also differ.
+
+Lua output
+----------
+
+Lua can be used to write arbitrary output. See :ref:`lua-output` for more information.
+
+Lua detection
+-------------
+
+Lua script can be used as a filter condition in signatures. See :ref:`lua-detection` for more information.