[SR-Users] usrloc: Unregister client on TCP connection close

Camille Oudot camille.oudot at orange.com
Wed Oct 22 18:19:31 CEST 2014


Le Wed, 22 Oct 2014 16:12:12 +0200,
Daniel-Constantin Mierla <miconda at gmail.com> a écrit :

> it should work -- quickly looked to the code and couldn't spot a
> problem. Just be aware that is working only when usrloc keeps the
> records in memory (not designed for db only mode).

Ok, i'm using in memory storage, so it should be fine

> Also, note that the record is not unregistered/removed immediately
> after the connection is closed, but by the timer task that checks for
> expired records.

Well, i configured usrloc with:

modparam("usrloc", "handle_lost_tcp", 1)
modparam("usrloc", "timer_interval", 5)

then disconnect the SIP phone from the network, and here are the logs:

...
DEBUG: <core> [io_wait.h:610]: io_watch_del(): DBG: io_watch_del (0xa2a320, 13, -1, 0x10) fd_no=2 called
DEBUG: <core> [tcp_read.c:1434]: release_tcpconn(): releasing con 0x7fedfe6cbe20, state 1, fd=13, id=3
DEBUG: <core> [tcp_read.c:1435]: release_tcpconn():  extra_data (nil)
DEBUG: <core> [tcp_main.c:3331]: handle_tcp_child(): handle_tcp_child: reader response= 7fedfe6cbe20, 1 from 2 
DEBUG: <core> [io_wait.h:388]: io_watch_add(): DBG: io_watch_add(0x9e6080, 60, 2, 0x7fedfe6cbe20), fd_no=45
DEBUG: <core> [tcp_main.c:3459]: handle_tcp_child(): handle_tcp_child: CONN_RELEASE  0x7fedfe6cbe20 refcnt= 1
...

but then, nothing from usrloc module.

It's maybe worth nothing that the kamailio instance dealing with these
connections is not the registrar, but only a proxy in front of it,
keeping track of successful registrations. The proxy's usrloc database
is populated by calls to save() when a 200 OK response comes from the
registrar box.

The Received information however is correctly set using the
received_avp feature of the registrar module.

But is this "received" information used by the usrloc timer task, or
does it remebers the source IP and port of the machine sending the
200 OK response instead?

Cheers,
-- 
Camille



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