patch from Stefan Kratochwil <entwicklung@inovel.de> : canfestival-3-fm3_698.patch
Bug:
If an object dictionary entry was requested whose size exceeds
SDO_MAX_LENGTH_TRANSFERT, the memcpy() call at line 139 of objacces.c overwrites
the memory after *pDestData which causes stack corruption.
-> Bugfix:
The bug was corrected by size checking the requested data. An 'Out of
memory' error message will be generated if the requested data exceeds
SDO_MAX_LENGTH_TRANSFERT.
Additional changes:
Added dynamic buffer allocation for the SDO transfer. This feature can be used
if SDO_DYNAMIC_BUFFER_ALLOCATION is defined in config.h. The size of the
dynamically allocated buffer is controlled with
SDO_DYNAMIC_BUFFER_ALLOCATION_SIZE.
-> Note:
This change removes the detection of OD_LENGTH_DATA_INVALID errors!
/*
This file is part of CanFestival, a library implementing CanOpen Stack.
Copyright (C): Edouard TISSERANT and Francis DUPIN
See COPYING file for copyrights details.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <wx/wxprec.h>
#include <wx/wx.h>
#include <wx/textctrl.h>
#include <iostream>
#include "CallBack.h"
#include "main.h"
extern "C"
{
#include "ObjDict.h"
}
extern wxTextCtrl *textLog;
/*****************************************************************************/
void
Call_heartbeatError (CO_Data * d, UNS8 heartbeatID)
{
//*textLog << wxT("HeartbeatError\n");
}
void
Call_initialisation (CO_Data * d)
{
//*textLog << wxT("Initialisation\n");
}
void
Call_preOperational (CO_Data * d)
{
//*textLog << wxT("PreOperational\n");
}
void
Call_operational (CO_Data * d)
{
//*textLog << wxT("Operational\n");
}
void
Call_stopped (CO_Data * d)
{
//*textLog << wxT("Stopped\n");
}
void
Call_post_sync (CO_Data * d)
{
//*textLog << wxT("Post_sync\n");
/* printf ("POST SYNC:\n");
printf
(" Write_Outputs: %x \n Analogue_Output1: %d \n Analogue_Output2: %d \n",
Write_Outputs_8_Bit[0], Write_Analogue_Output_16_Bit[0],
Write_Analogue_Output_16_Bit[1]);
printf
(" Read_Input: %x \n Analogue_Input1: %d \n Analogue_Input2: %d \n",
Read_Inputs_8_Bit[0], Read_Analogue_Input_16_Bit[0],
Read_Analogue_Input_16_Bit[1]);*/
}
void
Call_post_TPDO (CO_Data * d)
{
//*textLog << wxT("Post_TPDO\n");
}
void
Call_storeODSubIndex (CO_Data * d, UNS16 wIndex, UNS8 bSubindex)
{
/*printf ("StoreODSubIndex : %4.4x %2.2x\n", wIndex, bSubindex);*/
//*textLog << wxT("StoreODSubIndex :\n");
}