Hello,
in kamailio, if you want to apply immediately the changes done to the
sip request, then use msg_apply_changes() from textopsx module. Then you
can access it with the contact PV.
Also, the pvs for source ip and port are $si and $sp -- see the PV
cookbook in the wiki site at kamailio.org
Cheers,
Daniel
On 5/29/12 10:39 AM, Aft nix wrote:
Hi,
Sorry guyz, the problem is not solved as i thought. The script worked
perfectly in my lab where i did'nt know that the wifi router is a so
called "sip friendly router". It fixes broken contacts so it worked
perfectly in my lab.
But in my production server it did'nt work.
Problem is when i put "contact" in hash table entry like following :
sht(a=>$ci) = $ct;
it puts the broken contact adress( I mean contact address with private
IP) into the hashtable.
At first i put my code after the execution of "fix_nated_contact()".
But it did'nt work. Then i put a xlog() to print $ct. And to my
surprise i saw that its printing the private IP instead of the public
one. After searching through mailing list archives i came across this
:
http://lists.iptel.org/pipermail/serusers/2006-September/030511.html
According to this although the contact is fixed with received IP and
port, its not applied to the message buffer and kept in temporary
storage. when the message is about to be sent over sockets this
temporary storage is applied over the the original message buffer.
pseudo variables like $ct will always reference to the original
message, not the modified one after fix_nated_contact().
So to populate my hashtable, i have to choices:
1. I can reference src_ip and src_port , put a ":" between them like
following :
sht(a=>$ci) = $fU + src_ip + ":" + src_port (Please help with the
correct syntax for string concatenation).
2. Or if possible i reference the changed contact from the temporary
storage, and put this into my hashtable.
Please direct me which way should i go.
Cheers.
On Mon, May 28, 2012 at 8:25 PM, Aft nix <aft...@gmail.com> wrote:
Hi all,
I'm posting the script which worked. In future if anybody faces the
same problem can get a solution out of this.
In request_route:
#!ifdef WITH_HASH
if (is_method("INVITE") && !has_totag()){
xdbg ("Contact [$ct] with Callid [$ci]");
$sht(a=>$ci) = $ct;
}
#!endif
in route[WITHINDLG]
#!ifdef WITH_HASH
xdbg ("ruri [$ru]");
if ($(sht(a=>$ci){nameaddr.uri}) != $ru){
xdbg ("hash table entry
[$sht(a=>$ci)]");
$ru = $(sht(a=>$ci){nameaddr.uri});
sht_rm_name_re("ha=>$ci");
xdbg ("rewriting ruri to [$ru]");
}
#!endif
Thanks everyone for the help. I'm marking this thread as solved.
--
-aft
--
-aft
--
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 -
http://asipto.com/u/katu
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