OpenSSL Memory Allocation Functions Issue

[Chris]

Hi Todd,

Thanks for the information.
I've looked at compiling. I'm assuming this is the file you're referring to?
/usr/local/src/openssl-1.1.1m/configdata.pm

What am I looking for in that file? There is no mention of malloc?
Do I alter this file before running

make clean

make

make install


Thanks,

Chris

On Wed, 30 Mar 2022 at 16:32, Todd Short <todd.short at me.com> wrote:

> Each OS distribution may choose to enable/disable features as they see
> fit. And they may also patch the code.
>
> It's likely RHEL disabled the functionality.
>
> You would need to download the RPM source, build it, and see what is
> enabled (via configdata.pm) and what patches may have been applied.
>
> --
> -Todd Short
> // todd.short at me.com
> // “One if by land, two if by sea, three if by the Internet."
>
> On Mar 30, 2022, at 4:45 AM, Chris <sadfe523123 at gmail.com> wrote:
>
> Hi All,
>
>
> Experienced an issue with Kamailio which presented with the below error
>       tls_pre_init(): Unable to set the memory allocation functions
>
>
> I have two servers CentOS8 and RHEL8. CentOS8 runs as expected, RHEL8
> shows the errors
>
>
> This forum suggested this was related to an OpenSSL issue
> https://lists.kamailio.org/pipermail/sr-users/2013-August/079381.html
> <https://urldefense.com/v3/__https://lists.kamailio.org/pipermail/sr-users/2013-August/079381.html__;!!GjvTz_vk!AfL-J9AyplACFBlZMGroviNViIr_q6cV1xsicFVnuZ6r6VYVHs6K5HmWKLb-$>
>
>
> The below script was compiled and run as suggested in order confirm the
> OpenSSL was present
> #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;
> }
>
>
> The output on each system was different
> CentOS – nothing outputted
> RHEL – “Unable to set the memory allocation functions”
>
>
> Though versions of OpenSSL installed appeared the same
> yum info openssl-libs openssl | grep 'Packages\|Name\|Version'
>
>
>       CentOS:
>             Installed Packages
> Name         : openssl
> Version      : 1.1.1k
> Name         : openssl-libs
> Version      : 1.1.1k
>
>
>
>
>       RHEL:
>             Installed Packages
> Name         : openssl
> Version      : 1.1.1k
> Name         : openssl-libs
> Version      : 1.1.1k
>
>
>
>
>       strings /usr/lib64/libcrypto.so | grep "^OpenSSL"
>       Both systems have the same output
>
>
>
>
> Would someone be able to confirm what is going on here?
> Does the above script suggest a problem with the OpenSSL-Libs?
> Am I looking in the right places to confirm a difference between the two
> VMs?
>
>
>
>
> Thanks,
> Chris
>
>
>
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