M7350/qcom-opensource/kernel/kernel-tests/ip_accelerator/IPv4Packet.h
2024-09-09 08:57:42 +00:00

180 lines
3.8 KiB
C++

/*
* Copyright (c) 2014, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __IPA_TESTS_IPV4_PACKET__H__
#define __IPA_TESTS_IPV4_PACKET__H__
namespace IPA
{
#define IPV4_FLAGS_BYTE_OFFSET 6
/**
@brief
IPv4Packet abstract class.
@details
new setters should call to RecalculateChecksum();
*/
class IPv4Packet
{
public:
IPv4Packet(unsigned int size);
virtual ~IPv4Packet(void) = 0;
void ToNetworkByteStream(unsigned char *addr);
unsigned int GetSrcAddr(void);
void SetSrcAddr(unsigned int addr);
unsigned int GetDstAddr(void);
void SetDstAddr(unsigned int addr);
unsigned char GetProtocol(void);
unsigned int GetSize(void)
{
return m_PacketSize;
}
virtual unsigned short GetSrcPort(void);
virtual unsigned short GetDstPort(void);
virtual void SetDstPort(unsigned short port);
virtual void SetSrcPort(unsigned short port);
void SetMF(bool bValue);
protected:
virtual void RecalculateTCPChecksum(void) {}
virtual void RecalculateUDPChecksum(void) {}
virtual void RecalculateICMPChecksum(void) {}
unsigned char *m_Packet;
private:
unsigned int m_PacketSize;
void RecalculateChecksum(void);
void RecalculateIPChecksum(void);
};
/**
@brief
TCPPacket implementation.
@details
new setters should call to RecalculateChecksum();
*/
class TCPPacket:public IPv4Packet
{
public:
TCPPacket(void);
~TCPPacket(void) {}
protected:
virtual void RecalculateTCPChecksum(void);
};
/**
@brief
UDPPacket implementation.
@details
new setters should call to RecalculateChecksum();
*/
class UDPPacket:public IPv4Packet
{
public:
UDPPacket(void);
~UDPPacket(void) {}
protected:
virtual void RecalculateUDPChecksum(void);
};
/**
@brief
ICMPPacket implementation.
@details
new setters should call to RecalculateChecksum();
*/
class ICMPPacket:public IPv4Packet
{
public:
ICMPPacket(void);
~ICMPPacket(void) {}
virtual unsigned short GetSrcPort(void);
virtual unsigned short GetDstPort(void);
virtual void SetDstPort(unsigned short port);
virtual void SetSrcPort(unsigned short port);
protected:
/**
@brief
RecalculateICMPChecksum method.
@details
ICMP checksum recalculation is not needed now
and by so is not implemented yet
TODO: implement if needed
*/
virtual void RecalculateICMPChecksum(void)
{
return;
}
};
} /* namespace IPA */
#endif