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[telles-listas at devel...]

Hi Guys,

I'm trying to do some string matching against a created var and looks like I am doing something wrong but I can't find whats it.

I'm wrote an extension just for tests purposes on dialplan/default.xml:

<extension name="nat_detect" continue="true">
<condition>
<action application="set" data="nated=${cond(${network_addr} != ${sip_contact_host} ? 1 : 0)}"/>
</condition>
<condition field="${nated}" expression="1">
<action application="log" data="Action=${nated}"/>
<action application="set" data="proxy_media=true"/>
<action application="set" data="sip_nat_detected=true"/>
<anti-action application="log" data="Anti-Action=${nated}"/>
</condition>
</extension>

Using two SIP extensions (1000 and 1001) behind NAT and I expected too see "Action=1" on the logs/console, but I'm seeing "Anti-Action=1".

2009-03-26 11:02:57 [DEBUG] switch_core_state_machine.c:152 switch_core_standard_on_execute() sofia/internal/1001@x.x.x.x ([email]sofia/internal/1001@x.x.x.x[/email]) Execute set(nated=${cond(${network_addr} != ${sip_contact_host} ? 1 : 0)})
2009-03-26 11:02:57 [DEBUG] switch_core_session.c:1286 switch_core_session_exec() sofia/internal/1001@x.x.x.x ([email]sofia/internal/1001@x.x.x.x[/email]) Expanded String set(nated=1)
2009-03-26 11:02:57 [DEBUG] mod_dptools.c:711 set_function() sofia/internal/1001@x.x.x.x ([email]sofia/internal/1001@x.x.x.x[/email]) SET [nated]=[1]
2009-03-26 11:02:57 [DEBUG] switch_core_state_machine.c:152 switch_core_standard_on_execute() sofia/internal/1001@x.x.x.x ([email]sofia/internal/1001@x.x.x.x[/email]) Execute log(Anti-Action=${nated})
2009-03-26 11:02:57 [DEBUG] switch_core_session.c:1286 switch_core_session_exec() sofia/internal/1001@x.x.x.x ([email]sofia/internal/1001@x.x.x.x[/email]) Expanded String log(Anti-Action=1)
2009-03-26 11:02:57 [DEBUG] mod_dptools.c:895 log_function() Anti-Action=1
2009-03-26 11:02:57 [DEBUG] switch_core_state_machine.c:152 switch_core_standard_on_execute() sofia/internal/1001@x.x.x.x ([email]sofia/internal/1001@x.x.x.x[/email]) Execute set(dialed_extension=1000)
....

I really appreciate any inputs.
I'm using FS 1.0.3 stable.

regards,
Rodrigo Telles

[mike at jerris.com]

Actions are all run AFTER all conditions are parsed so the nated var is not set yet. you can do a single condition in this case, and set nated for use elsewhere if you need it in the actions.

Mike

On Mar 26, 2009, at 10:27 AM, Rodrigo P. Telles wrote:

[msc at freeswitch.org]

Look in the default.xml dialplan file for the "tod_example" extension.
(It's near the top of the file.) It has an example of how to create an
extension that simply sets a variable that can be used in other
extensions in the dialplan.

-MC

2009/3/26 Rodrigo P. Telles <telles-listas@devel-it.com.br>:

[brian at freeswitch.org]

Remember the dialplan is parsed, installed into the session then sent into the execute state. The dialplan is NOT execute line by line as it goes thru the dialplan. Which means you can not set a var on one line then condition on that var on the next line because the var isn't set yet... Remember its like a todo list one by one its compiled but not executed yet.

This is usually an alien concept when you're migrating from various other telephony software.

/b

On Mar 26, 2009, at 11:07 AM, Michael Collins wrote:

[telles-listas at devel...]

Hi Mike,

Using a single condition did the trick, thanks
Based on Brian's explanation the example from http://wiki.freeswitch.org/wiki/Proxy_Media is buggy...

regards,
Rodrigo Telles

Michael Jerris wrote: