Update README and add contrib dir

contrib/tsn/model/gPTP-packet.h

@@ -0,0 +1,121 @@
+#ifndef GPTP_PACKET_H
+#define GPTP_PACKET_H
+
+#include "ns3/object.h"
+#include "ns3/packet.h"
+
+namespace ns3
+{
+
+class PdelayPayload : public Object
+{
+  public :
+    /**
+     * \brief Get the TypeId
+     *
+     * \return The TypeId for this class
+     */
+    static TypeId GetTypeId();
+
+    /**
+     * \brief Create a PdelayPayload
+     */
+    PdelayPayload();
+    PdelayPayload(uint64_t timestampSecond, uint32_t timestampNanoSecond, uint64_t clockIdentity, uint16_t portIdentity);
+
+    /**
+     * Destroy a PdelayPacket
+     *
+     * This is the destructor for the PdelayPayload.
+     */
+    ~PdelayPayload();
+
+    Ptr<Packet> GetPkt();
+
+  private :
+    Ptr<Packet> m_pkt = nullptr;
+
+
+};
+
+
+
+class SyncPayload : public Object
+{
+  public :
+    /**
+     * \brief Get the TypeId
+     *
+     * \return The TypeId for this class
+     */
+    static TypeId GetTypeId();
+
+    /**
+     * \brief Create a SyncPayload
+     */
+    SyncPayload();
+    SyncPayload(uint64_t timestampSecond, uint32_t timestampNanoSecond);
+
+    /**
+     * Destroy a SyncPayload
+     *
+     * This is the destructor for the SyncPayload.
+     */
+    ~SyncPayload();
+
+    Ptr<Packet> GetPkt();
+
+  private :
+    Ptr<Packet> m_pkt = nullptr;
+
+
+};
+
+
+
+
+class FollowUpPayload : public Object
+{
+  public :
+    /**
+     * \brief Get the TypeId
+     *
+     * \return The TypeId for this class
+     */
+    static TypeId GetTypeId();
+
+    /**
+     * \brief Create a FollowUpPayload
+     */
+    FollowUpPayload();
+    FollowUpPayload(uint64_t timestampSecond,
+                      uint32_t timestampNanoSecond,
+                      uint32_t cumulativeScaledRateRatio,
+                      uint16_t gmTimeBaseIndicator,
+                      uint32_t lastGmPhaseChange0,
+                      uint32_t lastGmPhaseChange1,
+                      uint32_t lastGmPhaseChange2,
+                      uint32_t scaledLastGmFreqChange);
+
+    /**
+     * Destroy a FollowUpPayload
+     *
+     * This is the destructor for the SyncPayload.
+     */
+    ~FollowUpPayload();
+
+    Ptr<Packet> GetPkt();
+
+  private :
+    Ptr<Packet> m_pkt = nullptr;
+
+    uint16_t m_tlvType = 0x3;               //STD 802.1AS-2020 : 11.4.4.3.2
+    uint16_t m_lenghtField = 28;            //STD 802.1AS-2020 : 11.4.4.3.3
+    uint32_t m_organizationId = 0x0080C2;   //STD 802.1AS-2020 : 11.4.4.3.4
+    uint32_t m_organizationSubType = 1;     //STD 802.1AS-2020 : 11.4.4.3.5
+
+
+};
+
+}
+#endif /* GPTP_PACKET_H */