- 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/VlanLayer.h
+++ b/pcappp/include/pcapplusplus/VlanLayer.h
@@ -0,0 +1,137 @@
+#ifndef PACKETPP_VLAN_LAYER
+#define PACKETPP_VLAN_LAYER
+
+#include "Layer.h"
+#include "EthLayer.h"
+
+/// @file
+
+/**
+ * \namespace pcpp
+ * \brief The main namespace for the PcapPlusPlus lib
+ */
+namespace pcpp
+{
+
+	/**
+	 * @struct vlan_header
+	 * Represents a VLAN header
+	 */
+#pragma pack(push, 1)
+	struct vlan_header
+	{
+		/**
+		   @verbatim
+		   0                 1
+		   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+		   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		   |Prio |C|         VLAN ID     |
+		   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+		   @endverbatim
+		 */
+		uint16_t vlan;
+		/** Ethernet type for next layer */
+		uint16_t etherType;
+	};
+#pragma pack(pop)
+
+
+	/**
+	 * @class VlanLayer
+	 * Represents a VLAN tunnel layer
+	 */
+	class VlanLayer : 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
+		 */
+		VlanLayer(uint8_t* data, size_t dataLen, Layer* prevLayer, Packet* packet) : Layer(data, dataLen, prevLayer, packet) { m_Protocol = VLAN; }
+
+		/**
+		 * A constructor that allocates a new VLAN header
+		 * @param[in] vlanID VLAN ID
+		 * @param[in] cfi CFI value
+		 * @param[in] priority Priority value
+		 * @param[in] etherType Protocol EtherType of the next layer. It's an optional parameter, a value of 0 will be set if not provided
+		 */
+		VlanLayer(const uint16_t vlanID, bool cfi, uint8_t priority, uint16_t etherType = 0);
+
+		~VlanLayer() {}
+
+		/**
+		 * Get a pointer to the VLAN header. Notice this points directly to the data, so every change will change the actual packet data
+		 * @return A pointer to the vlan_header
+		 */
+		vlan_header* getVlanHeader() const { return (vlan_header*)m_Data; }
+
+		/**
+		 * Get the VLAN ID value. This method differs from vlan_header#vlanID because vlan_header#vlanID is 12 bits long in a 16 bit field.
+		 * This methods extracts only the 12 bit relevant for the VLAN ID
+		 * @return VLAN ID value
+		 * @todo Verify it works in big endian machines as well
+		 */
+		uint16_t getVlanID() const;
+
+		/**
+		 * @return The CFI bit value
+		 * @todo Verify it works in big endian machines as well
+		 */
+		uint8_t getCFI() const;
+
+		/**
+		 * @return The priority value
+		 * @todo Verify it works in big endian machines as well
+		 */
+		uint8_t getPriority() const;
+
+		/**
+		 * Set VLAN ID. This method differs from setting vlan_header#vlanID because vlan_header#vlanID is 12 bits long in a 16 bit field.
+		 * This methods sets only the 12 bit relevant for the VLAN ID
+		 * @param[in] id The VLAN ID to set
+		 * @todo Verify it works in big endian machines as well
+		 */
+		void setVlanID(uint16_t id);
+
+		/**
+		 * Set CFI bit
+		 * @param[in] cfi The CFI bit to set
+		 * @todo Verify it works in big endian machines as well
+		 */
+		void setCFI(bool cfi);
+
+		/**
+		 * Set priority value
+		 * @param[in] priority The priority value to set
+		 * @todo Verify it works in big endian machines as well
+		 */
+		void setPriority(uint8_t priority);
+
+		// implement abstract methods
+
+		/**
+		 * Currently identifies the following next layers: IPv4Layer, IPv6Layer, ArpLayer, VlanLayer, MplsLayer. Otherwise sets PayloadLayer
+		 */
+		void parseNextLayer();
+
+		/**
+		 * @return Size of vlan_header
+		 */
+		size_t getHeaderLen() const { return sizeof(vlan_header); }
+
+		/**
+		 * Calculate the EtherType for known protocols: IPv4, IPv6, ARP, VLAN
+		 */
+		void computeCalculateFields();
+
+		std::string toString() const;
+
+		OsiModelLayer getOsiModelLayer() const { return OsiModelDataLinkLayer; }
+	};
+
+} // namespace pcpp
+
+#endif /* PACKETPP_VLAN_LAYER */