[SR-Users] ASYNC Module

[Aaron Hamstra]

Alex,

We are using a pretty close to default configuration. 

Below is the routing blocks above and below where async_route is
located(async_route actually is inside my route[REGISTRAR] block.   

# Handle requests within SIP dialogs
route[WITHINDLG] {
        if (has_totag()) {
                # sequential request withing a dialog should
                # take the path determined by record-routing
                if (loose_route()) {
                        route(DLGURI);
                        if (is_method("BYE")) {
                                setflag(FLT_ACC); # do accounting ...
                                setflag(FLT_ACCFAILED); # ... even if
the transaction fails
                        }
                        else if ( is_method("ACK") ) {
                                # ACK is forwarded statelessy
                                route(NATMANAGE);
                        }
                        else if ( is_method("NOTIFY") ) {
                                # Add Record-Route for in-dialog NOTIFY
as per RFC 6665.
                                record_route();
                        }
                        route(RELAY);
                } else {
                        if (is_method("SUBSCRIBE") && uri == myself) {
                                # in-dialog subscribe requests
                                route(PRESENCE);
                                exit;
                        }
                        if ( is_method("ACK") ) {
                                if ( t_check_trans() ) {

                                        # no loose-route, but stateful
ACK;
                                        # must be an ACK after a 487
                                        # or e.g. 404 from upstream
server
                                        route(RELAY);
                                        exit;
                                } else {
                                        # ACK without matching
transaction ... ignore and discard
                                        exit;
                                }
                        }
                        xlog("SCRIPT: $TF Call to $rU but not currently
in usrloc db SIP/404\n");
                        sl_send_reply("404","Not here");
                }
                exit;
        }
}

# Event Route for Expired Contact
event_route[usrloc:contact-expired] {
    xlog("expired contact for $ulc(exp=>aor)\n");
}

# Handle SIP registrations
route[REGISTRAR] {
        if (is_method("REGISTER"))
        {
                if(isflagset(FLT_NATS))
                {
                        setbflag(FLB_NATB);
                        # uncomment next line to do SIP NAT pinging
                        ##setbflag(FLB_NATSIPPING);
                }
                xlog("SCRIPT: $TF $au registered to usrloc db from $si
from useragent type of $ua\n");
                if (!save("location", "0x4"))
                        sl_reply_error();
                async_route("PUSHJOIN", "2");
                exit;
        }
}
# USER location service
route[LOCATION] {
#!ifdef WITH_SPEEDDIAL
        # search for short dialing - 2-digit extension
        if($rU=~"^[0-9][0-9]$")
                if(sd_lookup("speed_dial"))
                        route(SIPOUT);
#!endif

#!ifdef WITH_ALIASDB
        # search in DB-based aliases
        if(alias_db_lookup("dbaliases"))
                route(SIPOUT);
#!endif

        $avp(oexten) = $rU;
        if (!lookup("location")) {
                $var(rc) = $rc;
                route(TOVOICEMAIL);
                t_newtran();
                switch ($var(rc)) {
                        case -1:
                        case -3:
                                xlog("SCRIPT: $TF Call to $rU but not
currently in usrloc db SIP/404\n");
                                send_reply("404", "Not Found");
                                exit;
                        case -2:
                                send_reply("405", "Method Not Allowed");
                                exit;
                }
        }

        # when routing via usrloc, log the missed calls also
        if (is_method("INVITE"))
        {
                setflag(FLT_ACCMISSED);
        }

        route(RELAY);
        exit;
}

Thanks!
-----Original Message-----
From: sr-users [mailto:sr-users-bounces at lists.sip-router.org] On Behalf
Of Alex Balashov
Sent: Friday, June 12, 2015 3:50 PM
To: sr-users at lists.sip-router.org
Subject: Re: [SR-Users] ASYNC Module

Aaron,

Where is the call to async_route() situated in the core request route? 
That is, what is called before and after the async_route?

-- Alex

On 06/12/2015 03:38 PM, Aaron Hamstra wrote:

> We just updated our development environment from 4.2.2 to 4.2.5 and 
> started noticing the server sending a 500 I'm terribly sorry, server 
> error occurred (1/TM) error back as soon as the async_route block gets

> called.  I have removed everything from our async route other than an 
> xlog statement trying to determine if something in that route block 
> was causing the 500 to occur.  It still happens even with only the
xlog.
>
> If the async_route is not in the config, then the server does not send

> the 500 response.
>
> We rolled back to 4.2.2 and the problem no longer occurs.
>
> I have attached a sip trace of the messages.  I believe the relevant 
> parts of our config are below,  please let me know if you need more 
> from the config however.
>
> Any ideas?
>
> async_route("PUSHJOIN", "2");
>
> --------------------------
>
> route[PUSHJOIN] {
>
> xlog("L_INFO", "Does it get here?\n");
>
> exit;
>
> }
>
> Thanks in Advance,
>
> Aaron
>
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing 
> list sr-users at lists.sip-router.org 
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>


--
Alex Balashov | Principal | Evariste Systems LLC
303 Perimeter Center North, Suite 300
Atlanta, GA 30346
United States

Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users at lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users