[SR-Users] is_direction / $fti / $tti not working possible

[Nathan Angelacos]

I'm  missing something obvious here, throwing this out to get a couple 
extra sets of eyeballs on it.

I can't get rr modules is_direction() or the $fti / $tti pv's to work in 
4.3.x or 4.4.x

Relevant parts of the config:


loadmodule "rr.so"
         modparam ("rr", "enable_full_lr", 1)
         modparam ("rr", "append_fromtag", 1)


...

route
{

   xlog ("L_INFO", "$rm: $fu -> $ru");

   record_route ();

   if (has_totag ())
     {
       xlog ("L_INFO", "Before Loose route: fti: $fti  tti: $tti  ci: $ci");
       if (loose_route ())
         {
           if (is_direction ("downstream"))
             {
               xlog ("L_INFO", "in-dialog $rm request from caller to 
callee");
             }
           else
             {
               xlog ("L_INFO", "in-dialog $rm request from callee to 
caller");
}
           xlog ("L_INFO",  "After Loose route:  fti: $fti  tti: $tti  
ci: $ci");
         }
}

   if (! t_relay ())
     {
       sl_reply_error ();
     }
}


----

Bob and Alice are hard phones, with kamailio + dbaliases in the middle.

Alice calls Bob, then Bob (the callee) sends the BYE

----

Syslog:

01. INVITE: sip:alice at kamailio.org -> sip:bob at kamailio.org:5060
02. Alias lookup returned <sip:bob at biloxi.com> , sending on
03. ACK: sip:alice at kamailio.org -> sip:bob at biloxi.com
04. Before Loose route: fti: 707601862  tti: 45686ADF-10AAEB28  ci: 
8744171 at atlanta.com
05. in-dialog ACK request from caller to callee
06. After Loose route:  fti: 707601862  tti: 45686ADF-10AAEB28  ci: 
8744171 at atlanta.com
07. BYE: sip:bob at kamailio.org -> sip:alice at atlanta.com:5066
08. Before Loose route: fti: 45686ADF-10AAEB28  tti: 707601862  ci: 
8744171 at atlanta.com
09. in-dialog BYE request from caller to callee
10. After Loose route:  fti: 45686ADF-10AAEB28  tti: 707601862  ci: 
8744171 at atlanta.com

Using the above config, is_direction always returns "caller", even when 
bob is sending the message.  Looking at a packet capture:

01. Kamailio Sent:  Record-Route: <sip:kamailio.org;lr=on;ftag=707601862>

<on the 200 ok from Bob>
       Kamailio Received: Record-Route: 
<sip:kamailio.org;lr=on;ftag=707601862>
       Kamailio Sent: Record-Route: <sip:kamailio.org;lr=on;ftag=707601862>

07. Kamailio Received:  Route: <sip:kamailio.org;lr=on;ftag=707601862>
       Kamailio Sent: Record-Route: 
<sip:kamailio.org;lr=on;ftag=45686ADF-10AAEB28>

I expect $fti to be wrong before the loose_route (line 08); but lines 09 
and 10 are wrong.

I'm obviously missing something trivial here.   Any ideas what I should 
check next?

Thanks!