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/*
Copyright (c) 2015-2015 Cisco Systems, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#ifndef _UDP_HEADER_H_
#define _UDP_HEADER_H_
#include "PacketHeaderBase.h"
#include "IPHeader.h"
#define UDP_HEADER_LEN 8
class UDPHeader
{
public:
UDPHeader()
{
setDestPort(0xDEAD);
setSourcePort(0xBEEF);
setChecksum(0);
setLength(0);
}
UDPHeader(uint16_t argSourcePort,
uint16_t argDestinationPort)
{
setDestPort(argDestinationPort);
setSourcePort(argSourcePort);
}
inline void setSourcePort(uint16_t data);
inline uint16_t getSourcePort();
inline void setDestPort(uint16_t data);
inline uint16_t getDestPort();
inline void setLength(uint16_t data);
inline uint16_t getLength();
inline void setChecksum(uint16_t data);
inline uint16_t getChecksum();
inline void updateCheckSum(IPHeader *ipHeader);
inline bool isCheckSumOk(IPHeader *ipHeader);
inline uint16_t calcCheckSum(IPHeader *ipHeader);
inline void setChecksumRaw (uint16_t data){
myChecksum = data;
}
inline void swapSrcDest();
////////////////////////////////////////////////////////////////////////////////////////
// Common Header Interface
////////////////////////////////////////////////////////////////////////////////////////
public:
inline uint8_t* getPointer (){return (uint8_t*)this;}
inline uint32_t getSize (){return 8;}
inline uint16_t getNextProtocol (){return getDestPort();};
inline void setNextProtocol (uint16_t argNextProtcool){setDestPort(argNextProtcool);};
void dump (FILE* fd);
private:
uint16_t mySourcePort;
uint16_t myDestinationPort;
uint16_t myLength;
uint16_t myChecksum;
};
#include "UdpHeader.inl"
#endif
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