README: added reference to UniRec output plugin and example configuration file

Author: Lukas955

README.rst

@@ -39,6 +39,8 @@ network interface and a port. Multiple instances of these plugins can run concur
 - `dummy <src/plugins/output/dummy>`_ - simple module example
 - `lnfstore <extra_plugins/output/lnfstore>`_ (*) - store all flows in nfdump compatible
   format for long-term preservation
+- `UniRec <extra_plugins/output/unirec>`_ (*)  - send flow records in UniRec format
+  via TRAP communication interface (into Nemea modules)
 
 \* Must be installed individually due to extra dependencies
 

doc/data/configs/tcp2unirec.xml

@@ -0,0 +1,42 @@
+<!--
+  Receive flow data over TCP, convert them into UniRec format and send via 
+  TCP TRAP communication interface (port 8000).
+-->
+<ipfixcol2>
+  <!-- Input plugins -->
+  <inputPlugins>
+    <input>
+      <name>TCP collector</name>
+      <plugin>tcp</plugin>
+      <params>
+        <localPort>4739</localPort>
+        <localIPAddress></localIPAddress>
+      </params>
+    </input>
+  </inputPlugins>
+
+  <!-- Output plugins -->
+  <outputPlugins>
+    <output>
+      <name>UniRec output</name>
+      <plugin>unirec</plugin>
+      <params>
+        <!-- UniRec template -->
+        <uniRecFormat>TIME_FIRST,TIME_LAST,SRC_IP,DST_IP,PROTOCOL,?SRC_PORT,?DST_PORT,?TCP_FLAGS,PACKETS,BYTES</uniRecFormat>
+        <!-- TRAP interface configuration -->
+        <trapIfcCommon>
+          <timeout>HALF_WAIT</timeout>
+          <buffer>true</buffer>
+          <autoflush>500000</autoflush>
+        </trapIfcCommon>
+        <!-- TRAP interface specification -->
+        <trapIfcSpec>
+          <tcp>
+            <port>8000</port>
+            <maxClients>64</maxClients>
+          </tcp>
+        </trapIfcSpec>
+      </params>
+    </output>
+  </outputPlugins>
+</ipfixcol2>

doc/sphinx/configuration.rst

@@ -180,6 +180,9 @@ of IPFIXcol. Always keep in mind that you should modify a configuration to fit y
 :`multiOutput <../data/configs/multiOutput.xml>`_:
     Receive flow data over TCP and store them in a nfdump compatible format on a local drive
     and simultaneously send to a remote host as JSON.
+:`tcp2unirec <../data/configs/tcp2unirec.xml>_`:
+    Receive flow data over TCP, convert them into UniRec format and send via TCP TRAP
+    communication interface (port 8000).
 
 Try your configuration
 ----------------------
@@ -263,4 +266,4 @@ Verbosity   Description
 ``warning`` Show error and warning messages (i.e. something is not right, but an action can continue)
 ``info``    Show all previous types of messages and informational (status) messages
 ``debug``   Show all types of messages (i.e. include messages interesting only for developers)
-=========== =========================================================================================
+=========== =========================================================================================