[SR-Users] app_perl modifies Via header?

Igor Potjevlesch igor.potjevlesch at gmail.com
Tue Oct 25 17:20:20 CEST 2016


Hello,

 

Even if I made a Kamailio config script easier and I use cnxcc_set_max_time, the call is not ended at the end of the number of seconds specified. Did I missed something?

 

Regards,

 

Igor.

 

De : Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com] 
Envoyé : mardi 25 octobre 2016 12:50
À : miconda at gmail.com
Cc : 'Kamailio (SER) - Users Mailing List' <sr-users at lists.sip-router.org>
Objet : RE: [SR-Users] app_perl modifies Via header?

 

Hello Daniel,

 

No action executed related to app_perl. I have tested with the following configuration:

 

# -------- dialog params -------

modparam("dialog", "dlg_flag", DLG_FLAG)

 

# -------- cnxcc params --------

modparam("cnxcc", "dlg_flag", CC_FLAG)

modparam("cnxcc", "credit_check_period", 1)

 

# --------- app_perl params ----

modparam("app_perl", "filename", "/usr/local/etc/kamailio/AAA/aaa-script.pl")

modparam("app_perl", "modpath", "/usr/local/lib64/kamailio/perl/")

 

Then, in Kamailio.cfg, nothing called the app_perl module.

 

The INVITE is coming with one Via header. Then, the call is routed to a gateway and when Kamailio append the forked INVITE with his Via header, he is malformed.

 

If I print "route[RELAY] {

        xlog("ENTERING RELAY routes: $(hdr(Via)[*])\n");" the result is fine in the log. But looking at a tcpdump, I can see that the outgoing packets has a malformed Via header.

 

Regards,

 

Igor.

 

 

De : sr-users [mailto:sr-users-bounces at lists.sip-router.org] De la part de Daniel-Constantin Mierla
Envoyé : mardi 25 octobre 2016 11:10
À : Kamailio (SER) - Users Mailing List <sr-users at lists.sip-router.org <mailto:sr-users at lists.sip-router.org> >
Objet : Re: [SR-Users] app_perl modifies Via header?

 

Hello,

this should not happen -- is any config action executed, or this happen before first action in request_route being executed? You can add an xlog there to see if it is executed.

Cheers,
Daniel

 

On 25/10/16 09:49, Igor Potjevlesch wrote:

Hello,

 

Someone experienced the same issue? I test again and I'm sure that it happens when I load and setup the module app_perl. Even if it's not used into the config file.

 

Regards,

 

Igor.

 

De : Igor Potjevlesch [mailto:igor.potjevlesch at gmail.com] 
Envoyé : lundi 24 octobre 2016 15:58
À : sr-users at lists.sip-router.org <mailto:sr-users at lists.sip-router.org> 
Objet : app_perl modifies Via header?

 

Hello,

 

I try to use app_perl and cnxcc module.

As soon as I load the module like this:

 

# --------- app_perl params ----

modparam("app_perl", "filename", "/usr/local/etc/kamailio/AAA/aaa-script.pl")

modparam("app_perl", "modpath", "/usr/local/lib64/kamailio/perl/")

 

The Via header is modified for each calls:

/usr/local/sbin/kamailio[21064]: INFO: <core> [parser/msg_parser.c:355]: parse_headers(): ERROR: bad header field [Via:ASIP/2.0/UDP 91.]

/usr/local/sbin/kamailio[21064]: ERROR: <core> [parser/parse_via.c:2048]: parse_via(): ERROR: parse_via: bad char <A> on state 100

 

What could explain this behaviour?

 

Regards,

 

Igor.





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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com
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