Re: [opensc-devel] Segmentation fault in pkcs11-tool
Hi Douglas, Something completely different to try is to test use your libPkcs11.so module with FireFox or Thunderbird: it runs fine under Firefox - it shows the slots and the slotInfo. Thunderbird I don't have so I didn't try it. Can you do a ldd pkcs11-tool and ldd libPkcs11.so yes, for some strange reason I get anna@anna:~/OpenSC/src/tools$ ldd pkcs11-tool not a dynamic executable That doesn't seem right. I try to find out what's going on. With my module: anna@anna:~/PKCS11_Project$ ldd libPkcs11.so linux-gate.so.1 = (0xb76f1000) libpcsclite.so.1 = /usr/local/lib/libpcsclite.so.1 (0xb73bd000) libstdc++.so.6 = /usr/lib/i386-linux-gnu/libstdc++.so.6 (0xb72d2000) librt.so.1 = /lib/i386-linux-gnu/librt.so.1 (0xb72c8000) libgcc_s.so.1 = /lib/i386-linux-gnu/libgcc_s.so.1 (0xb72aa000) libc.so.6 = /lib/i386-linux-gnu/libc.so.6 (0xb7128000) libpthread.so.0 = /lib/i386-linux-gnu/libpthread.so.0 (0xb710d000) libm.so.6 = /lib/i386-linux-gnu/libm.so.6 (0xb70e3000) /lib/ld-linux.so.2 (0xb76f2000) OK, then lets step back a bit, and set a breakpoint at C_LoadModule Its in OpenSC ./common/libpkcs11.c I made a debug log to show the steps I've done - it's in the attached file (I left some printouts in the code of a type Test text - please ignore that). So to summarize, I can access C_GetFunctionList and it appears I get the correct function list. The address of p11 in openSC is identical with the one in my module. C_Initialize in OpenSC and in my module are also identical. But I agree it could be a linking problem in my module, i just can't put my finger on it what am I dong wrong :-(. I'm getting kind of deperate on this. Thanks for staying in this with me! I try it with libtool as you suggested and let's see what happens. And tomorrow has to be the end of the world.. *sigh*.. this week is pretty bad :-(. Cheers, Anna On Wed, Dec 19, 2012 at 4:27 PM, Douglas E. Engert deeng...@anl.gov wrote: ldd pkcs11 pkcs11_debug.log Description: Binary data ___ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel
Re: [opensc-devel] Segmentation fault in pkcs11-tool
Hello Douglas, It sounds like opensc is compiled with the -g but not your module. you're right I didn't use the -g option while compiling my module, I added the -g option into my project and now when I compile my module I do (simplified): gcc -fpermissive -Wall -g -c -O2 -I../foo/includes -fPIC -MMD -MP -MF build/Release/GNU-Linux-x86/source/foox.o.d -o build/Release/GNU-Linux-x86/source/foox.o source/foox.cpp gcc -fpermissive -Wall -g -shared -o ../../../libPkcs11.so -fPIC build/Release/GNU-Linux-x86/source/foos.o -L../../../ -lbase -lboost_date_time -lboost_serialization -lboost_system -lboost_thread -lpkcs11crypto -lpcsclite -lstdc++ -lrt When I try to debug the p11-C_Initialize(NULL) line it doesn't allow me to go into the call. I used (gdb) break pkcs11-tool.c:670 (gdb) run Breakpoint 1, main (argc=5, argv=0xb294) at pkcs11-tool.c:670 670rv = p11-C_Initialize(NULL); (gdb) step which immediately returns: Program received signal SIGSEGV, Segmentation fault. 0xd810b787 in ?? () I can give OpenSC-0.13.0 a try but I don't think with a newer version my problem disappears... In the OpenSC ./src/pkcs11/Makefile.am has: opensc_pkcs11_la_LDFLAGS = $(AM_LDFLAGS) \ -export-symbols $(srcdir)/opensc-pkcs11.exports \ -module -shared -avoid-version -no-undefined I'm sorry, but I don't really know what the -module and -no-undefined options are :-(. Are these gcc options? Cheers, Anna On Tue, Dec 18, 2012 at 4:38 PM, Douglas E. Engert deeng...@anl.gov wrote: module ___ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel
Re: [opensc-devel] Segmentation fault in pkcs11-tool
Hello Douglas and Anthony,
sorry for late reply and cool, thanks you for helping me with gdb :-).
Thanks to you help I was able to run with my loaded library in debug mode.
Anyway, the crash (in the debug mode) looks as follows:
Program received signal SIGSEGV, Segmentation fault.
0xd810b787 in ?? ()
where 0xd810b787 is p11-C_Initialize (checked with printf(p11 = 0x%0x,
p11-C_Initialize = 0x%0x\n, p11, p11-C_Initialize);)
OK, but is 0x5810b6fa in your module?
This I am not completely sure about. But I don't really know how can I find
out if this is in my module or not.
I suspect that there is C_Initialize defined also somewhere else and the
pkcs11-tool picks it from somewhere else and not from my library.
I will ask again, does your module define the C_GetFunctionList, and does
it
return a valid function list?
Yes it has - in the upper layer of the library I defined it as
CK_DEFINE_FUNCTION(CK_RV, C_GetFunctionList)
(
CK_FUNCTION_LIST_PTR_PTR ppFunctionList // receives pointer to function
list
)
{
try
{
API_ENTRY();
API_PARAM_PTR_EX(ppFunctionList, ppFunctionList);
if (ppFunctionList == NULL)
API_EXIT(CKR_ARGUMENTS_BAD);
*ppFunctionList = functionList;
API_EXIT(CKR_OK);
}
catch(...)
{
TRACE_ERROR(Catching top-level exception, );
API_EXIT(CKR_FUNCTION_FAILED);
}
}
And it should return a valid function list. In fact I have my own small
test tool that uses dlopen(libname, RTLD_NOW) to open the library and
GetFuncList = (C_GetFunctionListPtr)dlsym(lib, C_GetFunctionList) to get
the correct address of the functions.
I believe this is the same thing as done with pkcs11-tool, but somehow it
works in my small test tool, I can do C_Initialize and other pkcs11
functions and in pkcs11-tool it crashes.
I have Ubuntu11.10, 32bit and the OpenSC version is very recent -
opensc0.12.1-1ubuntu1
I took it from here: http://apt.gooze.eu/ubuntu/dists/oneiric/
Cheers,
Anna
On Mon, Dec 17, 2012 at 8:59 PM, Douglas E. Engert deeng...@anl.gov wrote:
gdb --args pkcs11-tool
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[opensc-devel] Segmentation fault in pkcs11-tool
Hello, I am new to OpenSC but I was looking for a 3rd party tool with which I could test my self-developed pkcs11 library and I came across the OpenSC pkcs11-tool. I installed OpenSC under Ubuntu11.10, following http://www.gooze.eu/howto/smartcard-quickstarter-guide/opensc-installation-under-gnu-linux everything went fine, but when I wanted to run the pkcs11-tool: pkcs11-tool --module /home/anna/PKCS11_Project/libPkcs11.so -l -O I got segmentation fault. I was able to find the place where the code crashed. In pkcs11-tool.c the line (558): rv = p11-C_Initialize(NULL); seem to crash. The message is just Segmentation fault The module loads apparently fine. module = C_LoadModule(opt_module, p11); //no error here The problem is, that in my pkcs11 library I put an error message at the very beginning of the C_Initialize function, but not even this is printed out. So I don't think the crash comes from my library. I turned on the creation of a log file in my pkcs11 library, but not even my pkcs11 library log file is created. I tried to google this problem and found this old thread: http://www.opensc-project.org/pipermail/opensc-devel/2003-April/000831.html But it didn't really help me (rebuilding openssl didn't solve the problem..). Could anyone help? Thanks for any help, Anna ___ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel
Re: [opensc-devel] Segmentation fault in pkcs11-tool
Hello Douglas, Sounds like p11 == NULL, or p11-C_Initialize is NULL or not valid. I did: printf(p11 = 0x%0x, p11-C_Initialize = 0x%0x\n, p11, p11-C_Initialize); in pkcs11-tool.c, just after C_LoadModule and before p11-C_Initialize(NULL) and got: p11 = 0xb7214060, p11-C_Initialize = 0x5810b6fa so it is not null. Can you run this under gdb? Unfortunately I'm not very good in gdb :-( anna@anna:~/OpenSC/src/tools$ export LD_LIBRARY_PATH=`ls ../*/.libs -d | tr '\012' :` anna@anna:~/OpenSC/src/tools$ cd .libs/ anna@anna:~/OpenSC/src/tools/. libs$ gdb 'pkcs11-tool --module /home/anna/PKCS11_Project/libPkcs11.so' the last command returns: pkcs11-tool --module /home/anna/PKCS11_Project/libPkcs11.so: No such file or directory. Of course, when I run only: anna@anna:~/OpenSC/src/tools/.libs$ gdb pkcs11-tool that one runs and I can run in debug mode, but I'm afraid that then I'm not loading my module. Do you know how can I run gdb and also use my own library? Sorry, I'm not really used to work with gdb :-( Did you define a C_GetFunctionList in the module? Yes I did. In fact when I printed out in pkcs11-tool.c printf(%d \n,p11-version.major); printf(%d \n,p11-version.minor); it printed out the correct values. This is also the only thing that I can call with p11. But yes, C_GetFunctionList is defined in my library. You must make sure the you module is linked as a module and not just a shared library, so that functions returned by C_GetFunctionList points at the functions in your module, and not ones that may be defined by the caller. This is an interesting point, thank you. Actually no, I have built and linked it just like a shared library. I thought what's written as 'module' in the code and 'shared library' are the same things. Thanks, Anna On Mon, Dec 17, 2012 at 4:18 PM, Douglas E. Engert deeng...@anl.gov wrote: On 12/17/2012 7:01 AM, Anna Pavlova wrote: Hello, I am new to OpenSC but I was looking for a 3rd party tool with which I could test my self-developed pkcs11 library and I came across the OpenSC pkcs11-tool. I installed OpenSC under Ubuntu11.10, following http://www.gooze.eu/howto/smartcard-quickstarter-guide/opensc-installation-under-gnu-linux everything went fine, but when I wanted to run the pkcs11-tool: pkcs11-tool --module /home/anna/PKCS11_Project/libPkcs11.so -l -O I got segmentation fault. I was able to find the place where the code crashed. In pkcs11-tool.c the line (558): rv = p11-C_Initialize(NULL); Sounds like p11 == NULL, or p11-C_Initialize is NULL or not valid. It should point at your C_Initialize routine. Can you run this under gdb? seem to crash. The message is just Segmentation fault The module loads apparently fine. module = C_LoadModule(opt_module, p11); //no error here The problem is, that in my pkcs11 library I put an error message at the very beginning of the C_Initialize function, but not even this is printed out. So I don't think the crash comes from my library. I turned on the creation of a log file in my pkcs11 library, but not even my pkcs11 library log file is created. Did you define a C_GetFunctionList in the module? You must make sure the you module is linked as a module and not just a shared library, so that functions returned by C_GetFunctionList points at the functions in your module, and not ones that may be defined by the caller. Have a look at the pkcs11-spy too which is a PKCS#11 module that loads a second PKCS#11 module. I tried to google this problem and found this old thread: http://www.opensc-project.org/pipermail/opensc-devel/2003-April/000831.html But it didn't really help me (rebuilding openssl didn't solve the problem..). Could anyone help? Thanks for any help, Anna ___ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel -- Douglas E. Engert deeng...@anl.gov Argonne National Laboratory 9700 South Cass Avenue Argonne, Illinois 60439 (630) 252-5444 ___ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel ___ opensc-devel mailing list opensc-devel@lists.opensc-project.org http://www.opensc-project.org/mailman/listinfo/opensc-devel
