:plugin: cef
:type: codec

///////////////////////////////////////////
START - GENERATED VARIABLES, DO NOT EDIT!
///////////////////////////////////////////
:version: %VERSION%
:release_date: %RELEASE_DATE%
:changelog_url: %CHANGELOG_URL%
:include_path: ../../../../logstash/docs/include
///////////////////////////////////////////
END - GENERATED VARIABLES, DO NOT EDIT!
///////////////////////////////////////////

[id="plugins-{type}s-{plugin}"]

=== Cef codec plugin

include::{include_path}/plugin_header.asciidoc[]

==== Description

Implementation of a Logstash codec for the ArcSight Common Event Format (CEF)
Based on Revision 20 of Implementing ArcSight CEF, dated from June 05, 2013
https://community.saas.hpe.com/dcvta86296/attachments/dcvta86296/connector-documentation/1116/1/CommonEventFormatv23.pdf

If this codec receives a payload from an input that is not a valid CEF message, then it will
produce an event with the payload as the 'message' field and a '_cefparsefailure' tag.

[id="plugins-{type}s-{plugin}-options"]
==== Cef Codec Configuration Options

[cols="<,<,<",options="header",]
|=======================================================================
|Setting |Input type|Required
| <<plugins-{type}s-{plugin}-delimiter>> |<<string,string>>|No
| <<plugins-{type}s-{plugin}-fields>> |<<array,array>>|No
| <<plugins-{type}s-{plugin}-name>> |<<string,string>>|No
| <<plugins-{type}s-{plugin}-product>> |<<string,string>>|No
| <<plugins-{type}s-{plugin}-reverse_mapping>> |<<boolean,boolean>>|No
| <<plugins-{type}s-{plugin}-severity>> |<<string,string>>|No
| <<plugins-{type}s-{plugin}-signature>> |<<string,string>>|No
| <<plugins-{type}s-{plugin}-vendor>> |<<string,string>>|No
| <<plugins-{type}s-{plugin}-version>> |<<string,string>>|No
|=======================================================================

&nbsp;

[id="plugins-{type}s-{plugin}-delimiter"]
===== `delimiter` 

  * Value type is <<string,string>>
  * There is no default value for this setting.

If your input puts a delimiter between each CEF event, you'll want to set
this to be that delimiter.

For example, with the TCP input, you probably want to put this:

    input {
      tcp {
        codec => cef { delimiter => "\r\n" }
        # ...
      }
    }

This setting allows the following character sequences to have special meaning:

* `\\r` (backslash "r") - means carriage return (ASCII 0x0D)
* `\\n` (backslash "n") - means newline (ASCII 0x0A)

[id="plugins-{type}s-{plugin}-fields"]
===== `fields` 

  * Value type is <<array,array>>
  * Default value is `[]`

Fields to be included in CEV extension part as key/value pairs

[id="plugins-{type}s-{plugin}-name"]
===== `name` 

  * Value type is <<string,string>>
  * Default value is `"Logstash"`

Name field in CEF header. The new value can include `%{foo}` strings
to help you build a new value from other parts of the event.

[id="plugins-{type}s-{plugin}-product"]
===== `product` 

  * Value type is <<string,string>>
  * Default value is `"Logstash"`

Device product field in CEF header. The new value can include `%{foo}` strings
to help you build a new value from other parts of the event.


[id="plugins-{type}s-{plugin}-reverse_mapping"]
===== `reverse_mapping`

  * Value type is <<boolean,boolean>>
  * Default value is `false`

Set to true to adhere to the specifications and encode using the CEF key name (short name) for the CEF field names.

[id="plugins-{type}s-{plugin}-severity"]
===== `severity` 

  * Value type is <<string,string>>
  * Default value is `"6"`

Severity field in CEF header. The new value can include `%{foo}` strings
to help you build a new value from other parts of the event.

Defined as field of type string to allow sprintf. The value will be validated
to be an integer in the range from 0 to 10 (including).
All invalid values will be mapped to the default of 6.

[id="plugins-{type}s-{plugin}-signature"]
===== `signature` 

  * Value type is <<string,string>>
  * Default value is `"Logstash"`

Signature ID field in CEF header. The new value can include `%{foo}` strings
to help you build a new value from other parts of the event.

[id="plugins-{type}s-{plugin}-vendor"]
===== `vendor` 

  * Value type is <<string,string>>
  * Default value is `"Elasticsearch"`

Device vendor field in CEF header. The new value can include `%{foo}` strings
to help you build a new value from other parts of the event.

[id="plugins-{type}s-{plugin}-version"]
===== `version` 

  * Value type is <<string,string>>
  * Default value is `"1.0"`

Device version field in CEF header. The new value can include `%{foo}` strings
to help you build a new value from other parts of the event.