. make safe search in enumsToString, add parseNextLayer for UDS layer…

… as generic PayloadLayeruse byte shifting instead of reinterprete_cast for field crafting

Packet++/header/DoIpEnums.h

@@ -570,6 +570,11 @@ namespace pcpp
 		NODE = 0x01U
 	};
 
+	/**
+	 * @brief Enum representing DoIP sync status (ISO 13400).
+	 *
+	 * These codes are used to indicate whether GID and VIN are synchronized or not.
+	 */
 	enum class DoIpSyncStatus : uint8_t
 	{
 		/**

Packet++/header/DoIpLayer.h

@@ -3,6 +3,7 @@
 #include <vector>
 #include <unordered_map>
 #include "Layer.h"
+#include "PayloadLayer.h"
 #include "IpAddress.h"
 #include "MacAddress.h"
 #include "Logger.h"
@@ -215,8 +216,7 @@ namespace pcpp
 		/**
 		 * TODO, parse UDS layer
 		 */
-		void parseNextLayer() override
-		{}
+		void parseNextLayer() override;
 
 		/**
 		 * @return The size of @ref doiphdr + attached fields length

Packet++/src/DoIpLayer.cpp

@@ -209,4 +209,16 @@ namespace pcpp
 			}
 		}
 	}
+
+	void DoIpLayer::parseNextLayer()
+	{
+		DiagnosticMessageData diagnosticMessage;
+
+		if (diagnosticMessage.buildFromLayer(this))
+		{
+			// handle UDS layer as generic PayloadLayer for now.
+			m_NextLayer = new PayloadLayer(diagnosticMessage.diagnosticData.data(),
+			                               diagnosticMessage.diagnosticData.size(), this, m_Packet);
+		}
+	}
 }  // namespace pcpp