• HOME
• PRODUCTS
• DOWNLOADS
• LSP GUIDE
• CONTACT
• ABOUT

---

Retail products

---

Traffic interception SDK

Control every TCP/IP network connection

• Route connections via proxy
• Redirect connections and modify the data
• Block connections and applications

Learn More

SSL interception SDK

View SSL in plaintext and modify it

• View the SSL stream decrypted in plaintext
• Redirect SSL connection and modify decrypted data
• Browser shows "SSL lock" without warnings

Learn More

---

Documentation

---

TCPCrafter.h Go to the documentation of this file. /* * Copyright (c) 2000-2003 Barak Weichselbaum <barak@komodia.com> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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. * * Contact info: * ------------- * * Site: http://www.komodia.com * Main contact: barak@komodia.com * For custom projects, * consulting, or other * paid services: sales@komodia.com */ #if !defined(AFX_TCPCRAFTER_H__E2C01EE5_8ABA_4D74_91D6_E80D1D404E5C__INCLUDED_) #define AFX_TCPCRAFTER_H__E2C01EE5_8ABA_4D74_91D6_E80D1D404E5C__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 #include "TCPSocket.h" #include "IPCrafter.h" KOMODIA_NAMESPACE_START class CTCPCrafter : public CTCPSocket, public CIPCrafter { public: //Get the memory of a crafted packet (returns an allocated packet) char* GetCraftedPacket(unsigned short usSourcePort, unsigned long ulDestinationAddress, const char* pBuffer, unsigned long ulBufferSize, unsigned short usDestinationPort, unsigned short& usTotalSize)const; //Set urgent pointer void SetUrgentPointer(unsigned short usUrgentPointer); //Indicate if we want to use TCP default checksum void SetTCPUseDefaultChecksum(BOOL bDefault); //Set the TCP checksum void SetTCPChecksum(unsigned short usTCPChecksum); //Set the window size void SetWindow(unsigned short usWindow); //Set the TCP flags void SetFlags(unsigned char ucFlags); //Set the data offset (TCP) void SetDataOffset(unsigned char ucDataOffset); //Set the acknowledge number void SetAcknowledgeNumber(unsigned int uiAcknowledgeNumber); //Set the sequence number void SetSequenceNumber(unsigned int uiSequenceNumber); //Send raw packet //Positive - The number of bytes received. //Zero - Socket has been closed. //Negative - Error virtual BOOL SendRaw(unsigned short usSourcePort, IP aDestinationAddress, unsigned short usDestinationPort, const char* pBuffer, unsigned long ulBufLength, unsigned char ucFlags=0); //Send raw packet //Positive - The number of bytes received. //Zero - Socket has been closed. //Negative - Error virtual BOOL SendRaw(unsigned short usSourcePort, const std::string& rDestinationAddress, unsigned short usDestinationPort, const char* pBuffer, unsigned long ulBufLength, unsigned char ucFlags=0); //Ctor and Dtor CTCPCrafter(); virtual ~CTCPCrafter(); protected: //Create an IP header virtual LPIpHeader ConstructIPHeader (unsigned char ucProtocol, unsigned short usFragmentationFlags, unsigned char ucTTL, unsigned short usIdentification, unsigned char ucHeaderLength)const; //Last stop before sending the header virtual void FinalIPHeader(LPIpHeader lpHead)const; //Create the TCP header virtual LPTCPHeader ConstructTCPHeader(unsigned short usSourcePort, unsigned short usDestinationPort, unsigned char ucHeaderLength)const; //Last call before send virtual void FinalTCPHeader(LPTCPHeader lpHead)const; private: //No copy Ctor CTCPCrafter(const CTCPCrafter& rCrafter); //No assignment operator CTCPCrafter& operator=(const CTCPCrafter& rCrafter); //Our sequence number unsigned int m_uiSequenceNumber; //Our acknowledge number unsigned int m_uiAcknowledgeNumber; //TCP data offset unsigned char m_ucDataOffset; //TCP flags unsigned char m_ucFlags; //Window size unsigned short m_usWindow; //TCP checksum unsigned short m_usTCPChecksum; BOOL m_bTCPUseDefaultChecksum; //Urgent pointer indicator unsigned short m_usUrgentPointer; }; KOMODIA_NAMESPACE_END #endif // !defined(AFX_TCPCRAFTER_H__E2C01EE5_8ABA_4D74_91D6_E80D1D404E5C__INCLUDED_)

Copyright © 2009 Komodia Inc. All rights reserved

Home | Portfolio | Services | Articles | Blog