add IpFragmentation

src/IpPacketFragmentation.h

@@ -0,0 +1,27 @@
+#ifndef IPPACKETFRAGMENTATION_H
+#define IPPACKETFRAGMENTATION_H
+
+#include "IpPacketFragmentation_t.h"
+#include "Ip6Packet_t.h"
+#include "AbstractPacketHandler.h"
+
+class IpPacketFragmentation : public AbstractPacketHandler
+{
+
+public:
+
+    IpPacketFragmentation(const size_t newMtu);
+    virtual ~IpPacketFragmentation();
+
+    virtual bool handle(IN const Tins::PDU & pdu, IN IPacketHandler *  callBackHandler = nullptr) override;
+private:
+     const size_t mtu;
+     uint32_t idCounter;
+     static const size_t fragmentionHeadersize = sizeof (FragmentionHeaderUnion) - 1;
+     static void addExtensionHeader(IN const uint8_t NextHeader, IN const uint8_t *startPtr, IN Tins::IPv6 & ipFragmentPdu);
+     bool createAndForwardFragmend(IN const Tins::PDU & pdu, IN const ByteVector::iterator & fragmentStart, IN const ByteVector::iterator & fragmentPosIt, IN FragmentionHeaderStruct * ptrFragmentionHeaderStruct, IN uint8_t * ptrStartFragmentionHeader, IN IPacketHandler *  callBackHandler);
+
+     void initFragmentationHeader(FragmentionHeaderStruct* ptrFragmentionHeaderStruct);
+};
+
+#endif // IPPACKETFRAGMENTATION_H