[OpenSIPS-Users] Memory leak - solved

[Liviu Chircu]

Hi Callum,

Sorry for the late follow-up: did you make any progress with your leak?
If not, could you prepare a minimal opensips.cfg that exposes the 
problem?  A quick
code review did not show any obvious leaks, so I suspect there is something
about your specific script that I am overlooking.

Best regards,

Liviu Chircu
www.twitter.com/liviuchircu | www.opensips-solutions.com

OpenSIPS Summit, Amsterdam, May 2020
   www.opensips.org/events/Summit-2020Amsterdam
OpenSIPS Bootcamp, Miami, March 2020
   www.opensips.org/training

On 09.12.2019 13:13, Callum Guy wrote:
> Hi All,
>
> I wanted to follow up on a recent issue I experienced to understand if
> it was due to user error or a bug that needs to be patched.
>
> The issue was traced back to a simple function call in the permissions module:
>
> check_source_address(0, $avp(address_desc))
>
> Nearly every request processed would have been an unlisted source
> address and a negative response would have been expected. As an in
> memory hash lookup for a small address list (<50 records) this seemed
> like a very safe operation to perform.
>
> The AVP is uninitialised at the point of invocation - I am guessing
> that this is key to the problem. To resolve the problem I have simply
> removed the AVP and the method call is now:
>
> check_source_address(0)
>
> I would like to learn whether using an AVP for this operation was
> incorrect or whether there was another reason for the leak. I've had a
> go at reviewing the source for permissions and pvar however I quickly
> got lost trying to find where the AVP initialisation would have been
> invoked. Any advice would be appreciated.
>
> Many thanks,
>
> Callum
>