- add Pcap++ Windows build

2023-06-23 16:30:48 +03:00
parent 9fae569a23
commit 3c84cbb96b
115 changed files with 31597 additions and 1 deletions
--- a/pcappp/include/pcapplusplus/VxlanLayer.h
+++ b/pcappp/include/pcapplusplus/VxlanLayer.h
@@ -0,0 +1,145 @@
+#ifndef PACKETPP_VXLAN_LAYER
+#define PACKETPP_VXLAN_LAYER
+
+#include "Layer.h"
+
+/// @file
+
+namespace pcpp
+{
+
+	/**
+	 * @struct vxlan_header
+	 * Represents a VXLAN protocol header
+	 */
+#pragma pack(push, 1)
+	struct vxlan_header
+	{
+		#if(BYTE_ORDER == LITTLE_ENDIAN)
+			/** Reserved bits */
+			uint16_t reserved6_8:3;
+			/** VNI present flag */
+			uint16_t vniPresentFlag:1;
+			/** Reserved bits */
+			uint16_t reserved2_4:3;
+			/** GBP flag */
+			uint16_t gbpFlag:1;
+			/** Reserved bits */
+			uint16_t reserved14_16:3;
+			/** Policy applied flag */
+			uint16_t policyAppliedFlag:1;
+			/** Reserved bits */
+			uint16_t reserved11_12:2;
+			/** Don't learn flag */
+			uint16_t dontLearnFlag:1;
+			/** Reserved bits */
+			uint16_t reserved9:1;
+		#else
+			/** Reserved bits */
+			uint16_t reserved9:1;
+			/** Don't learn flag */
+			uint16_t dontLearnFlag:1;
+			/** Reserved bits */
+			uint16_t reserved11_12:2;
+			/** Policy applied flag */
+			uint16_t policyAppliedFlag:1;
+			/** Reserved bits */
+			uint16_t reserved14_16:3;
+			/** GBP flag */
+			uint16_t gbpFlag:1;
+			/** Reserved bits */
+			uint16_t reserved2_4:3;
+			/** VNI present flag */
+			uint16_t vniPresentFlag:1;
+			/** Reserved bits */
+			uint16_t reserved6_8:3;
+		#endif
+
+		/** Group Policy ID */
+		uint16_t groupPolicyID;
+
+		/** VXLAN Network ID (VNI) */
+		uint32_t vni:24;
+		/** Reserved bits */
+		uint32_t pad:8;
+	};
+#pragma pack(pop)
+
+
+	/**
+	 * @class VxlanLayer
+	 * Represents a VXLAN (Virtual eXtensible Local Area Network) protocol layer
+	 */
+	class VxlanLayer : public Layer
+	{
+	public:
+		 /** A constructor that creates the layer from an existing packet raw data
+		 * @param[in] data A pointer to the raw data
+		 * @param[in] dataLen Size of the data in bytes
+		 * @param[in] prevLayer A pointer to the previous layer
+		 * @param[in] packet A pointer to the Packet instance where layer will be stored in
+		 */
+		VxlanLayer(uint8_t* data, size_t dataLen, Layer* prevLayer, Packet* packet) : Layer(data, dataLen, prevLayer, packet) { m_Protocol = VXLAN; }
+
+		/**
+		 * A constructor that creates a new VXLAN header and allocates the data. Note: the VNI present flag is set automatically
+		 * @param[in] vni VNI (VXLAN Network ID) to set. Optional parameter (default is 0)
+		 * @param[in] groupPolicyID Group Policy ID to set. Optional parameter (default is 0)
+		 * @param[in] setGbpFlag Set GBP flag. Optional parameter (default is false)
+		 * @param[in] setPolicyAppliedFlag Set Policy Applied flag. Optional parameter (default is false)
+		 * @param[in] setDontLearnFlag Set Don't Learn flag. Optional parameter (default is false)
+		 */
+		VxlanLayer(uint32_t vni = 0, uint16_t groupPolicyID = 0, bool setGbpFlag = false, bool setPolicyAppliedFlag = false, bool setDontLearnFlag = false);
+
+		~VxlanLayer() {}
+
+		/**
+		 * Get a pointer to the VXLAN header. Notice this points directly to the data, so every change will change the actual packet data
+		 * @return A pointer to the vxlan_header
+		 */
+		vxlan_header* getVxlanHeader() const { return (vxlan_header*)m_Data; }
+
+		/**
+		 * @return The VXLAN Network ID (VNI) value
+		 */
+		uint32_t getVNI() const;
+
+		/**
+		 * Set VXLAN Network ID (VNI) value
+		 * @param[in] vni VNI value to set
+		 */
+		void setVNI(uint32_t vni);
+
+		/**
+		 * A static method that checks whether the port is considered as VxLAN
+		 * @param[in] port The port number to be checked
+		 */
+		static bool isVxlanPort(uint16_t port) { return port == 4789; }
+
+
+		// implement abstract methods
+
+		/**
+		 * Next layer for VXLAN is always Ethernet
+		 */
+		void parseNextLayer();
+
+		/**
+		 * @return Size of vxlan_header
+		 */
+		size_t getHeaderLen() const { return sizeof(vxlan_header); }
+
+		/**
+		 * Does nothing for this layer
+		 */
+		void computeCalculateFields() {}
+
+		std::string toString() const;
+
+		OsiModelLayer getOsiModelLayer() const { return OsiModelDataLinkLayer; }
+
+	};
+
+}
+
+#endif // PACKETPP_VXLAN_LAYER