[OpenSIPS-Users] interaction between fix_nated_contact(), topology_hiding() and serial forking
Răzvan Crainea
razvan at opensips.org
Thu Oct 29 09:44:43 EST 2020
Hi, Jeff!
So you're claiming that the updated contact is lost even if you call
fix_nated_contact() before topology_hiding(), but only for the second
branch? Are you calling t_newtran() anywhere in your script?
Best regards,
Răzvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com
On 10/28/20 8:30 PM, Jeff Pyle wrote:
> Liviu,
>
> It looks like the fixed/update contact is lost only when
> topology_hiding() is involved. Would you prefer a separate issue, or
> shall I append the issue you referenced before?
>
>
> - Jeff
>
>
> On Wed, Oct 28, 2020 at 2:15 PM Jeff Pyle <jeff at ugnd.org
> <mailto:jeff at ugnd.org>> wrote:
>
> Hey Liviu,
>
> fix_nated_contact() before topology_hiding(). Got it. As far as
> losing the fixed contact during a serial fork, I'll do more testing
> to localize exactly which combination of circumstances causes this
> to surface and open a bug report.
>
>
> - Jeff
>
>
> On Wed, Oct 28, 2020 at 1:28 PM Liviu Chircu <liviu at opensips.org
> <mailto:liviu at opensips.org>> wrote:
>
> Hi!
>
> On 28.10.2020 18:49, Jeff Pyle wrote:
>> First, I lose the updated Contact from fix_nated_contact()
>> after a serial fork. Is this expected?
> I would assume the `fix_nated_contact()` lump changes get backed
> up into shared memory, then made available during the
> failure_route. Anything else and IMHO it looks like a bug.
> Opinions welcome.
>>
>> Second, I've determined that if the Contact URI is not wrapped
>> in <>, that's when I get the "second attempt to change URI
>> Contact" error when running fix_nated_contact() in the
>> branch_route[]. This feels like a bug.
>
> This one is a known, documented issue. Long story short: you
> should always call fix_nated_contact() _before_
> topology_hiding(). See this truth table for more info [1].
>
> [1]: https://github.com/OpenSIPS/opensips/issues/2172
>
> --
> Liviu Chircu
> www.twitter.com/liviuchircu <http://www.twitter.com/liviuchircu> |www.opensips-solutions.com <http://www.opensips-solutions.com>
>
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