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!
#! gmake
#
# Copyright (C) 2010 Cosateq GmbH & Co.KG
# http://www.cosateq.com/
# http://www.scale-rt.com/
#
# This file is part of canfestival, a library implementing the canopen
# stack
#
# 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
#
#ifneq ($(KERNELRELEASE),)
# Kbuild part of Makefile
TARGET = SUB_TARGET
CAN_DRIVER = SUB_CAN_DRIVER
TIMERS_DRIVER = SUB_TIMERS_DRIVER
EXTRA_CFLAGS := -I$(src)/../../include
EXTRA_CFLAGS += -I$(src)/../../include/$(TARGET)
EXTRA_CFLAGS += -I$(src)/../../include/$(CAN_DRIVER)
EXTRA_CFLAGS += -I/usr/src/comedi/include
EXTRA_CFLAGS += SUB_PROG_CFLAGS
obj-m := can_copcican_comedi.o
can_copcican_comediko-objs = $(CAN_DRIVER).o
#else
# Normal Makefile
PREFIX = SUB_PREFIX
KERNELDIR := SUB_KERNELDIR
all: driver
driver:
$(MAKE) -C $(KERNELDIR) M=$(shell pwd) modules
clean:
$(MAKE) -C $(KERNELDIR) M=$(shell pwd) clean
rm -f Module.symvers
mrproper: clean
install:
$(MAKE) -C $(KERNELDIR) M=$(shell pwd) modules_install
#endif