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!
HOW TO configure CanFestival for a CO-PCICAN card for linux:
pre-actions:
- install the CO-PCICAN card
- install and load the user space driver co_pcicanext.ko
- unpack the package to your target (if not already done)
- create empty file:
touch /usr/local/lib/libcanfestival_can_copcican_linux.so
- perform package configuration:
sh ./configure --can=copcican_linux
- build the CanFestival library:
cd src
make
make install
- build the CanFestival Unix library:
cd drivers/unix
make
make install
BUGFIX:
copy library into build directory back:
cp /usr/local/lib/libcanfestival_unix.a drivers/unix
- build the CO-PCICAN driver interface:
cd drivers/can_copcican_linux
make
make install
- build the example application:
cd examples/test_copcican_linux
make
Run test_copcican_linux to see it works...
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