[sr-dev] Problem with Registration on pcscf

[Jason Penton]

Hey Paul,

Sorry for the delay on this. I had missed it. I will see if I can re-create
and get back to you. Have you maanged to do any more testing since?

Cheers
Jason


On Fri, Jan 24, 2014 at 5:42 PM, Paul Pankhurst <paul at crocodile-rcs.com>wrote:

> I've noticed a problem with registrations on the pcscf when doing some
> testing with sipp
>
> If I send in a REGISTER with SIPP followed by an INVITE calls go through
> my system no problem.
> If I then stop the sipp script and run it again, I find that although the
> registration succeeds, subsequent INVITES are rejected telling me that I
> have not registered!
> If I unregister at the end of my script everything is fine, and the
> problem goes away after the original REGISTRATION times out, so this led me
> to think that we had a problem with multiple registrations entries in the
> system.
>
> The problem seems to be a result of the fact that sipp always places the
> same ip address and port number on the contact line when using tcp
> connections.
>
> I've had a look through the code and believe that we are getting multiple
> entries in the usrloc hash table in this scenario, and ul_get_pcontact only
> ever returns the first one which causes pcscf_is_registered to incorrectly
> report that the UE is not registered.
>
> Paul
>
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