[OpenSER-Users] Drop reply

[Klaus Darilion]

Alex Hermann schrieb:
> On Tuesday 13 November 2007 09:41, Bogdan-Andrei Iancu wrote:
>> Hi Klaus,
>>
>> yes, it is possible to drop provisional replies. But I think Alex was
>> referring to final negative reply as he mentioned failure route (you do
>> not get any provisional reply there).
> 
> Right.
> 
> I pass REGISTER requests to an upstream registrar, but when it is unavailable 
> I use the 'save()' function from failure_route to create a valid 200 OK 
> response to the UAC. In this scenario the UAC also receives the locally 
> created 408 or upstream response. I want to drop this (negative) response.

IMO it should be possible to also drop final responses (yes I know it is 
bad as the transactions stay in memory but sometimes it is needed).

As a workaround - in failure route loop the request to the proxy again 
and then save it (of course src_ip is then wring. Thus for NAT traversal 
you have to store the received paramters in a proprietary header which 
will be read when receiving the REGISTER again).


regards
klaus

> 
> Luckily the 200 OK is sent earlier than the 408, but there is no gauarantee is 
> will arrive earlier. It is also not known how every UAC will react when it 
> receives both replies.