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<div id="projectname">ESP32/ESP8266 Firewall<span id="projectnumber"> 1.0.0</span>
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<div id="projectbrief">a software firewall for ESP23 or ESP8266</div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include "Utils.hpp"</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span> </div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="keyword">namespace </span>fw</div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span>{</div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> String protocol_to_string(firewall_protocol_t &protocol)</div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> {</div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> <span class="keywordflow">switch</span> (protocol)</div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> {</div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> <span class="keywordflow">case</span> PROTOCOL_TCP:</div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> <span class="keywordflow">return</span> <span class="stringliteral">"TCP"</span>;</div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> <span class="keywordflow">case</span> PROTOCOL_UDP:</div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> <span class="keywordflow">return</span> <span class="stringliteral">"UDP"</span>;</div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> <span class="keywordflow">default</span>:</div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> <span class="keywordflow">return</span> <span class="stringliteral">"ALL"</span>;</div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> }</div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> }</div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> firewall_protocol_t string_to_protocol(String &protocol)</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> {</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> <span class="keywordflow">if</span> (protocol.equals(<span class="stringliteral">"TCP"</span>))</div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordflow">return</span> PROTOCOL_TCP;</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (protocol.equals(<span class="stringliteral">"UDP"</span>))</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keywordflow">return</span> PROTOCOL_UDP;</div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordflow">return</span> PROTOCOL_ALL;</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> }</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> String target_to_string(firewall_target_t &target)</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> {</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">switch</span> (target)</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> {</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">case</span> TARGET_DROP:</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">return</span> <span class="stringliteral">"DROP"</span>;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">default</span>:</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordflow">return</span> <span class="stringliteral">"ACCEPT"</span>;</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> }</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> }</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> firewall_target_t string_to_target(String &target)</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> {</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">if</span> (target.equals(<span class="stringliteral">"DROP"</span>))</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span> TARGET_DROP;</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">return</span> TARGET_ACCEPT;</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> }</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> </div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordtype">void</span> endless_loop()</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> {</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> Serial.printf(<span class="stringliteral">"Something went wrong. Running endless loop until fixed..."</span>);</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">while</span> (<span class="keyword">true</span>)</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> delay(500);</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keywordtype">bool</span> is_in_range(<span class="keyword">const</span> uint16_t number, <span class="keyword">const</span> uint16_t lower, <span class="keyword">const</span> uint16_t upper)</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> {</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">return</span> lower <= number && number <= upper;</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> }</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>}</div>
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</div><!-- fragment --></div><!-- contents -->
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Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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