[SR-Users] function calling in the config script with $var() as attribute(s)

[Klaus Darilion]

Am 24.02.2010 15:41, schrieb Klaus Feichtinger:
> Hello SR-users and -developers,
>
> I have the question if parameters for a function in the config script
> (e.g. "t_relay(host, port)") in general can be set with a variable
> ($var(xy)). Because of having a set of SIP servers / gateways distributed
> over a wide area and therefore keeping the configuration as simple as
> possible, I would like to define a custom variable, assign it to a $var
> and use this variable as attribute for a relay function. In this case the
> variable would represent a string of an IP-address (e.g. "10.1.1.55").
> When this would work I only have to adapt the custom variables on top of
> each config script and could let the rest "as it is".
>
>
> First practical tests have shown, that the functions are NOT happy with these "attributes". It can be used without any problems for if-else-
> statements, but I fear not for functions....
>
> The practical scenario looks like:
>
> tc.ip11 = "10.16.65.101" desc "";
> [...]
> route {
>     $var(test) = $sel(cfg_get.tc.ip11);
>     [...]
>     if (!t_relay($var(test), "5061"))

A workaround for t_relay:

   $du = "sip:"+$var(test)+":5061";
   t_relay();


klaus


>     [...]
> }
>
> This configuration resulted in following error messages:
>
> <core>  [cfg.y:3326]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 413, column 18-35: syntax error
> <core>  [cfg.y:3326]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 413, column 18-35: call params error#012
> <core>  [cfg.y:3326]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 413, column 18-35: call params error#012
> <core>  [cfg.y:3326]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 413, column 38-41: Function parameter with integer value not allowed#012
>
>
> Please, could anybody clarify if this should work or not? If not - is any
> alternative possibility available for "automating" function attributes
> instead of re-writing each function using the same string attribute?
>
> Thanks in advance,
>
> Klaus
>