[Users] contact header radius accounting

[Christian Schlatter]

hi all,

I'd like to include caller and callee SIP contact header in radius 
accounting messages. Our dynamic QoS provisioning framework needs this 
information to set up QoS per source/destination IP address pair.

Caller contact header is easily done using radius_extra and setting an 
AVP in the INVITE handling route block. But I haven't figured out yet 
how I could store the callee's contact header in an AVP. The main 
problem I have is that I can't use any AVP related functions in 
onreply_route blocks. What I'd like to do is something like

modparam("acc", "radius_extra", \
"Originating-Station-IP=$avp(AVP_ORIG_IP); \
Destination-Station-IP=$avp(AVP_DEST_IP)")

onreply_route[ONREPLY_DEFAULT_RELAY] {

   if (t_check_status("2[0-9]{2}")) {
     avp_write("$ct", "$avp(AVP_DEST_IP)");
   }

}

I've learned from an earlier mail thread 
(http://www.openser.org/pipermail/users/2005-October/001272.html) that 
enabling AVP functions in on_reply routes would be rather difficult. Is 
there still a chance that on_reply AVP handling gets implemented?

And is there an alternative method how this could be achieved without 
patching the acc module?

thanks,
Christian




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