133 lines
6.8 KiB
C
133 lines
6.8 KiB
C
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/**********************************************************************************************************************
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* COPYRIGHT
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* -------------------------------------------------------------------------------------------------------------------
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* \verbatim
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* Copyright (c) 2014 by Vector Informatik GmbH. All rights reserved.
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*
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* This software is copyright protected and proprietary to Vector Informatik GmbH.
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* Vector Informatik GmbH grants to you only those rights as set out in the license conditions.
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* All other rights remain with Vector Informatik GmbH.
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* \endverbatim
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* -------------------------------------------------------------------------------------------------------------------
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* FILE DESCRIPTION
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* -----------------------------------------------------------------------------------------------------------------*/
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/** \file expdatproc.cpp
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* \brief Implementation of the dataprocessing functions.
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*
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* \details This file contains general purpose interface functions for the DLL.
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*
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*********************************************************************************************************************/
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/**********************************************************************************************************************
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* AUTHOR IDENTITY
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* -------------------------------------------------------------------------------------------------------------------
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* Name Initials Company
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* -------------------------------------------------------------------------------------------------------------------
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* Armin Happel vishp Vector Informatik GmbH
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* -------------------------------------------------------------------------------------------------------------------
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* REVISION HISTORY
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* -------------------------------------------------------------------------------------------------------------------
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* Version Date Author Change Id Description
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* -------------------------------------------------------------------------------------------------------------------
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* 01.07.05 2010-05-20 vishp HMAC Korrektur bei Berechnung mit MD5.
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* 01.08.00 2012-08-25 vishp SHA256 hinzugef<EFBFBD>gt.
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*
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* 01.08.07 2014-11-21 vishp ESCAN00079758:Support ARLE compression/decompression
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* 02.00.00 2014-12-18 vishp Complete rework of file structure.
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*********************************************************************************************************************/
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/**********************************************************************************************************************
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* INCLUDES
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*********************************************************************************************************************/
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#include <windows.h>
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#include "expdat.h"
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/**********************************************************************************************************************
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* LOCAL DATA
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**********************************************************************************************************************/
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/*! \brief Error text corresponding to EExportStatus (see expdat.h) reported through the error function GetExportStateInfo() */
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static const char *sInfoText[] = {
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"Interface state is idle or not initialized"
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,"Incompatible version of EXPDATPROC.DLL"
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,"General checksum calculation error"
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,"No constant data found in INI-file"
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,"Data compression calculation error"
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,"Data encryption error"
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,"Base address mis-alignment"
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,"Data length mis-alignment"
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,"Internal error: Unknown action item or action state"
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,"Parameter missing or wrong for data processing"
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,"General failure on reading key"
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,"Key parameter duplicate defined"
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,"Key parameter is missing"
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,"Key parameter contains HMAC information"
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,"Key parameter contains RSA information"
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,"Block size must be between 128 bytes and 70000000 bytes for compression"
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,"AES algorithm requires 16-byte block length. Align data or use PKCS7, RFC1321 or ANSI X.923 padding method"
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,"Unknown or invalid AES padding method"
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,"General RSA calculation error. Keys or data length incorrect"
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,"Invalid data length for RSA operation"
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,"Signature verification failed"
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,"Public key invalid."
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,"Signature has invalid size"
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,"Dynamic length data processing operation not possible with this method. You may increase the 'buffer to file size threshold' or 'temporary buffer size'."
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};
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static const char *generalFailure = "General unknown error";
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BOOL WINAPI _CRT_INIT(_In_ HANDLE _HDllHandle, _In_ DWORD _Reason, _In_opt_ LPVOID _Reserved);
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/**********************************************************************************************************************
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**********************************************************************************************************************
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* GLOBAL FUNCTIONS
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**********************************************************************************************************************
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**********************************************************************************************************************/
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/**********************************************************************************************************************
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* DllEntryPoint()
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**********************************************************************************************************************/
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BOOL WINAPI DllEntryPoint(HINSTANCE hInstance, DWORD dwReason, LPVOID plvReserved)
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{
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switch(dwReason) {
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case DLL_PROCESS_ATTACH:
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case DLL_THREAD_ATTACH:
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if (!_CRT_INIT(hInstance, dwReason, plvReserved))
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return(FALSE);
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break;
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case DLL_PROCESS_DETACH:
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case DLL_THREAD_DETACH:
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if (!_CRT_INIT(hInstance, dwReason, plvReserved))
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return(FALSE);
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break;
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}
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return true;
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}
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/**********************************************************************************************************************
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* GetExportStateInfo()
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**********************************************************************************************************************/
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/*! \brief Reporting a text information on an error.
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* \params[out] infoText location to place the error text pointer for the application.
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* \param[in] The error status where the error shall be reported for.
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* \note This is an exported interface function of the DLL intended to be called from the EXE.
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**********************************************************************************************************************/
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void __declspec(dllexport) __cdecl GetExportStateInfo(char **infoText, enum EExportStatus actionState )
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{
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if (actionState < (sizeof(sInfoText)/sizeof(char *)))
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{
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*infoText = (char *)sInfoText[actionState];
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}
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else
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{
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*infoText = (char *)generalFailure;
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}
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}
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