<div class="gmail_extra">Thank you very much Vlad...Now everything seems a lot clear to me!!<br><br><div class="gmail_quote">On Wed, Apr 25, 2012 at 10:30 AM, Vlad Paiu <span dir="ltr"><<a href="mailto:vladpaiu@opensips.org" target="_blank">vladpaiu@opensips.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><u></u>
<div bgcolor="#ffffff" text="#000000">
Hello,<br>
<br>
match_dialog() works at dialog level, while t_check_trans() works at
transaction level.<br>
When you call match_dialog() on a sequential request within the
dialog, OpenSIPS will try to match the request to an already ongoing
dialog in the OpenSIPS memory. If it succeeds, further on in your
script you will have access to dialog related features.<br>
<br>
t_check_trans() works differently, based on what type of request you
are handling. For CANCELs, it will return true if the INVITE
transaction exists for that CANCEL, for ACKs it will return true if
it's an end-to-end ACK for an INVITE transaction. Further more, for
other requests, t_check_trans() will check if there is already an
ongoing transaction, and thus the current request is a
retransmission. In such a case, your script execution will stop, as
you do not normally want to re-process retransmissions.<div class="im"><br>
<br>
Regards,<br>
<pre cols="72">Vlad Paiu
OpenSIPS Developer
<a href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a> </pre>
<br></div><div><div class="h5">
On 04/25/2012 05:03 PM, Wilmar Campos wrote:
<blockquote type="cite">
<div class="gmail_extra">Vlad, can you please explain the
difference between match_dialog() and t_check_trans()? I have
read the documentation but I still don't get it!</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">
Thank you,</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">WC<br>
<br>
<div class="gmail_quote">On Wed, Apr 25, 2012 at 4:44 AM, Vlad
Paiu <span dir="ltr"><<a href="mailto:vladpaiu@opensips.org" target="_blank">vladpaiu@opensips.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#ffffff" text="#000000"> Hi,<br>
<br>
It seems you are looping the ACK over & over to
yourself, so I think your sequential requests processing
is wrong.<br>
For matching sequential requests within a topo hiding
dialog, use the match_dialog() function [1] .<br>
<br>
[1] <a href="http://www.opensips.org/html/docs/modules/devel/dialog#id295095" target="_blank">http://www.opensips.org/html/docs/modules/devel/dialog#id295095</a>
<div><br>
<br>
Regards,<br>
<pre cols="72">Vlad Paiu
OpenSIPS Developer
<a href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a> </pre>
<br>
</div>
<div>
<div> On 04/24/2012 08:17 PM, Wilmar Campos
wrote:
<blockquote type="cite">
<div class="gmail_extra">Here are additional trace
information of what I am seeing:</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:rr:find_first_route: No Route headers found</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:rr:loose_route: There is no Route HF</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]: no loose</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
ERROR:siptrace:trace_dialog: failed to create
dialog</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]: ack or prack</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:parse_headers: flags=78</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:tm:t_lookup_request: start searching:
hash=58803, isACK=1</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:parse_headers: flags=38</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:parse_to_param: tag=3544276353-446053</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:parse_to: end of header reached,
state=29</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:parse_to: display={"Wilmar Campos"},
ruri={<a href="mailto:sip:12054@x.x.x.101" target="_blank">sip:12054@x.x.x.101</a>}</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:tm:t_lookup_request: REF_UNSAFE:[0xb4f2b744]
after is 1</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:tm:t_lookup_request: e2e proxy ACK found</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]: match</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]: x.x.x.253
<null> is ACK relay</div>
<div class="gmail_extra"> Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:tm:t_newtran: transaction on entrance=(nil)</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:parse_headers: flags=ffffffffffffffff</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:tm:t_newtran: building branch for end2end
ACK - flags=1</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:tm:t_relay_to: forwarding ACK</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:mk_proxy: doing DNS lookup...</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:check_ip_address: params x.x.x.253,
x.x.x.253, 0</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:forward_request: sending:</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
ACK: sip:x.x.x.253;did=c75.06cce112 SIP/2.0</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Max-Forwards: 47</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
To: <a href="mailto:sip:7917573108366435@x.x.x.253" target="_blank"><sip:7917573108366435@x.x.x.253></a>;tag=c4d8a7fc-CC-33</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
From: "Wilmar Campos" <a href="mailto:sip:12054@x.x.x.101" target="_blank"><sip:12054@x.x.x.101></a>;tag=3544276353-446053</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Call-ID: 1351817-3544276353-446044@nextone</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
CSeq: 1 ACK</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Allow: INVITE, BYE, OPTIONS, CANCEL, ACK,
REGISTER, NOTIFY, INFO, REFER, SUBSCRIBE, PRACK,
UPDATE</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.253;branch=z9hG4bK3b5e.12d52d27.2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Via: SIP/2.0/UDP
x.x.x.101:5060;branch=z9hG4bKde33285d3f6afec6b8ce5c7ef7f135e1</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Contact: <a href="mailto:sip:12054@x.x.x.101:5060" target="_blank"><sip:12054@x.x.x.101:5060></a></div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
Content-Length: 0</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
.: </div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12526]:
DBG:core:forward_request: orig. len=1822,
new_len=1884, proto=1</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_msg: SIP Request:</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_msg: method: <ACK></div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_msg: uri:
<sip:x.x.x.253;did=c75.06cce112></div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_msg: version: <SIP/2.0></div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_headers: flags=2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_to_param: tag=c4d8a7fc-CC-33</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_to: end of header reached,
state=29</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_to: display={}, ruri={<a href="mailto:sip:7917573108366435@x.x.x.253" target="_blank">sip:7917573108366435@x.x.x.253</a>}</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:get_hdr_field: <To> [57]; uri=[<a href="mailto:sip:7917573108366435@x.x.x.253" target="_blank">sip:7917573108366435@x.x.x.253</a>] </div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:get_hdr_field: to body [<a href="mailto:sip:7917573108366435@x.x.x.253" target="_blank"><sip:7917573108366435@x.x.x.253></a>]</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:get_hdr_field: cseq <CSeq>:
<1> <ACK></div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_via_param: found param type 232,
<branch> = <z9hG4bK3b5e.12d52d27.2>;
state=16</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_via: end of header reached,
state=5</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_headers: via found, flags=2</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:parse_headers: this is the first via</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:receive_msg: After parse_msg...</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:core:receive_msg: preparing to run routing
scripts...</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:sl:sl_filter_ACK: to late to be a local ACK!</div>
<div class="gmail_extra">Apr 24 13:12:42 prox-qos
/usr/local/sbin/opensips[12528]:
DBG:maxfwd:is_maxfwd_present: value = 47 </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra"> <br>
</div>
<br>
<div class="gmail_quote">On Mon, Apr 23, 2012 at
4:41 AM, Vlad Paiu <span dir="ltr"><<a href="mailto:vladpaiu@opensips.org" target="_blank">vladpaiu@opensips.org</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#ffffff" text="#000000"> Hello,<br>
<br>
Please post a full SIP trace of the dialog
where the ACK is not properly routed, as
well as the OpenSIPS full debug log for it.<br>
<br>
Regards,<br>
<pre cols="72">Vlad Paiu
OpenSIPS Developer
<a href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a> </pre>
<div>
<div> <br>
On 04/20/2012 09:11 PM, Wilmar Campos
wrote: </div>
</div>
<blockquote type="cite">
<div>
<div>Hi to All,
<div>I hope everybody is well and
ready for the weekend!</div>
<div><br>
<div>In the last days I have been
playing with the topologyhiding
from the Dialog Module, I am using
Opensips 1.8.0.</div>
<div>When I dont
use topology_hiding() all messages
are transmited OK, but when I use
it, all but the ACK messages are
transmited, t_relay is executed
but message is never delivered to
the other party.</div>
<div><br>
</div>
<div>Can you please point me to
the right direction here.</div>
<div><br>
</div>
<div>I am pretty sure I am detecting
the ACK, also I am sure t_relay
its been executed.</div>
<div><br>
</div>
<div>Thank all for seeing this..</div>
<div>
<div><br>
</div>
-- <br>
Wilmar Campos<br>
</div>
</div>
</div>
</div>
<pre><fieldset></fieldset>
_______________________________________________
Users mailing list
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
</blockquote>
</div>
<br>
_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a><br>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
Wilmar Campos<br>
</div>
<pre><fieldset></fieldset>
_______________________________________________
Users mailing list
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
</blockquote>
</div>
</div>
</div>
<br>
_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a><br>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
Wilmar Campos<br>
</div>
<pre><fieldset></fieldset>
_______________________________________________
Users mailing list
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a>
</pre>
</blockquote>
</div></div></div>
<br>_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><br>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><br>
<br></blockquote></div><br><br clear="all"><div><br></div>-- <br>Wilmar Campos<br>
</div>