### 1.1 Getting Started ¶

This manual documents the “Firewall Knock Operator” library programming interface. All functions and data types provided by the library are explained.

This manual can be used in a couple of ways. If read from the beginning to the end, it should give a good introduction into the library and how it can be used in an application. Later on, the manual can be used as a reference manual to get just the information needed about any particular interface of the library.