[SR-Users] tls.so: mod_register failed on fedora 18 x86_64

[Daniel-Constantin Mierla]

On 8/22/13 9:00 AM, Roberto Fichera wrote:
> On 08/21/2013 10:23 PM, Daniel-Constantin Mierla wrote:
>> Hello,
>>
>> On 8/20/13 4:24 PM, Roberto Fichera wrote:
>>> [...]
>>>> Mmmhhh!!! Looks like this particular version has problem, see:
>>>>
>>>> http://bugs.python.org/msg191610
>>>
>>> I can confirm that the bug is present in both Fedora 18 & 19. The 
>>> openssl has a bug
>>> which prevent the tls module to work due to allow_customize = 0 set 
>>> in one of the
>>> functions called by OPENSSL_init() within CRYPTO_set_mem_functions().
>>>
>>> You can check easily with this small code:
>>>
>>> #include <stdio.h>
>>> #include <openssl/ssl.h>
>>>
>>> static void *myMalloc( size_t s ) { return NULL; }
>>> static void *myRealloc( void *p, size_t s ) { return NULL; }
>>> static void myFree( void *p ) {}
>>>
>>> int main()
>>> {
>>>   if ( !CRYPTO_set_mem_functions( myMalloc, myRealloc, myFree) )
>>>   {
>>>     fprintf( stderr, "Unable to set the memory allocation functions\n");
>>>     return -1;
>>>   }
>>>
>>>   return 0;
>>> }
>>>
>>> compile with "gcc -o testssl testssl.c -lssl -lcrypto"
>>>
>>> I've done a small patch in order to workaround the problem in case 
>>> someone need it.
>> Thanks for investigating further and providing proper references.
>>
>> Is the patch for kamailio? If yes, you can attach it here or on our 
>> tracker, so others can use it. Eventually we can integrate it in the 
>> module, there are couple of other workarounds for openssl bugs there.
>
> Unfortunately not! I haven't found yet a solution to workaround the 
> openssl patch!
> I guess we cannot easily workaround inside the kamailio tls module 
> since the
> problem is strictly related to openssl.
Can you share the openssl patch? Maybe we find a solution together here...

Cheers,
Daniel

-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

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