Removing Wifi documentation after learning more about IwIP

ESPFirewall/lib/Firewall/docs/firewall/firewall.tex

@@ -55,52 +55,6 @@ After analyzing existing solutions following firewall parameters were implemente
 
 A port can be a maximum of 65565, therefore cannot be of type \verb|uint16_t| but \verb|uint32_t|. Target as well as protocol are enums for the available options. To block a range of ports, there is a \verb|port_from| and \verb|port_to|. The firewall will store all the rules as linked list to dynamically add and remove rules.
 
-\subsection{WiFi Events}
-
-To intercept network packages there is a need to somehow get notified when a new package arrived that needs to be analyzed. Based on the firewall rules, it can pass, gets dropped or rejected.
-
-Available ESP32 WiFi Events can be seen in figure \ref*{fig:WiFi Events}. None of those events support reading incoming packages.
-
-\begin{figure}[H]
-    \begin{center} 
-        \includegraphics[height=0.9\textheight]{wifi-events}
-        \caption{WiFi Events}
-        \label{fig:WiFi Events}
-    \end{center}
-\end{figure}
-
-\cite[cf.][]{espressif-wifi}
-
-\subsection{WiFi Buffer Usage}
-
-Looking at the usage of the DMA buffer (Figure \ref{fig:WiFi Buffer}) of the driver we can see where we have to check for received packages.
-
-\begin{figure}[H]
-    \begin{center} 
-        \includegraphics[width=0.8\textwidth]{wifi-buffer}
-        \caption{WiFi Buffer}
-        \label{fig:WiFi Buffer}
-    \end{center}
-\end{figure}
-
-\cite[cf.][]{espressif-wifi}
-
-\subsection{Wi-Fi Sniffer Mode}
-
-Esp32 can be setup in a ``sniffer mode''. Following packets can be dumped to the application:
-
-\begin{list}{-}{}
-    \item 802.11 Management frame.
-    \item 802.11 Data frame, including MPDU, AMPDU, and AMSDU.
-    \item 802.11 MIMO frame, for MIMO frame, the sniffer only dumps the length of the frame.
-    \item 802.11 Control frame.
-    \item 802.11 CRC error frame.
-\end{list}
-
-The same can be done with the esp8266 as described in this article: 
-
-\href{https://carvesystems.com/news/writing-a-simple-esp8266-based-sniffer/}{https://carvesystems.com/news/writing-a-simple-esp8266-based-sniffer/}
-
 \newpage
 
 \subsection{IwIP}
@@ -136,8 +90,8 @@ if (ip4_addr4_16_val(iphdr->src) == 211)
 Following output can be seen when sending a ping from the machine with IP-Address \verb|10.93.0.211| to the esp. ICMP is therefore marked with protocol 1.
 
 \begin{verbatim}
-    I (97535) PROTO:   1
+    I (x) PROTO:   1
-    I (97535) IP:  10 93 0 211
+    I (x) IP:  10 93 0 211
 \end{verbatim}
 
 Sending a UDP or TCP package to the ESP (IP-Address: \verb|10.93.0.246|) can be done by executing the python code in the repository.
@@ -150,16 +104,16 @@ Sending a UDP or TCP package to the ESP (IP-Address: \verb|10.93.0.246|) can be
 Following output can be registered.
 
 \begin{verbatim}
-    I (1777105) PROTO:   6
+    I (x) PROTO:   6
-    I (1777105) IP:  10 93 0 211
+    I (x) IP:  10 93 0 211
-    I (1779825) PROTO:  17
+    I (x) PROTO:  17
-    I (1779825) IP:  10 93 0 211
+    I (x) IP:  10 93 0 211
 \end{verbatim}
 
 Looking at the printed protocols this means 6 == "TCP" and 17 == "UDP".
 
 \subsubsection{Using Hook}
 
-
+After learning the protocols that need to be filtered and looked out for, a hook needs to be registered in order to filter the packets based on our rules.
 
 \subsection{Benchmark}