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Hello,<br>
<br>
it seems that the flag not to generate the internal reply was lost
when adopting the new ser tm module.<br>
<br>
Can you try the attached patch on 4.0.x?<br>
<br>
Once applied and kamailio reinstalled, before t_relay() use:<br>
<br>
t_disable_internal_reply();<br>
<br>
An the return code should be -4 in this case.<br>
<br>
Let me know if works and I will push the fixes in the git repo, with
updates to docs.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 8/23/13 12:13 PM, Steve Davies
wrote:<br>
</div>
<blockquote
cite="mid:CABFTEGX6q5UkWSDAt5NZZKAZrgV+dj7U5YLK_cnLc4t41V9cRw@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On 23 August 2013 11:18, Steve Davies
<span dir="ltr"><<a moz-do-not-send="true"
href="mailto:steve@connection-telecom.com"
target="_blank">steve@connection-telecom.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr">Here's what I put in RELAY route block:<br>
<div class="gmail_extra">
<div class="gmail_quote">
<div><br>
</div>
<div>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata">
$var(rr) = t_relay();</p>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata">
xlog("L_NOTICE","SLD: in RELAY, t_relay
returned $var(rr)\n");</p>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata">
if (!$var(rr)) {</p>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata">
sl_reply_error();</p>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata">
}</p>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata"><br>
</p>
<p
style="margin:0px;font-size:12px;font-family:Inconsolata"><br>
</p>
</div>
<div>In 4.0.3, t_relay gives a -1 in the case that
there is a physical network issue (in my test I
have a "-j DROP" iptables rule)</div>
<div><br>
</div>
</div>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>Trying to find a way to detect the case where t_relay
fails but doesn't call the failure block. I dumped some
hopeful looking pseudo variables, and tried to use an avp
to communicate from the failure branch back to the relay
point.</div>
<div><br>
</div>
<div>I tried this:</div>
<div><br>
</div>
<div> $avp(senttoast) = 0;</div>
<div> $var(rr) = t_relay();</div>
<div> xlog("L_NOTICE","SLD: in RELAY, t_relay
returned $var(rr) err.rcode is $err.rcode t_r_c is
$T_reply_code sent = $avp(senttoast)\n");</div>
<div> if ($var(rr) < 0) {</div>
<div> sl_reply_error();</div>
<div> }</div>
<div><br>
</div>
<div>and in my failure block I set $avp(senttoast) to 1.</div>
<div><br>
</div>
<div><br>
</div>
<div>I get:</div>
<div><br>
</div>
<div>Aug 23 12:07:02 ubuntu /usr/local/sbin/kamailio[7819]:
NOTICE: <script>: SLD: in RELAY, t_relay returned -1
err.rcode is <null> t_r_c is 100 sent = 0</div>
<div><br>
</div>
<div>In the case of a 477 being sent back. So I can't find
anything distinctive so far.</div>
<div><br>
</div>
<div>In the case of a soft failure (I have the upstream send
a 500):</div>
<div><br>
</div>
<div>
<div>Aug 23 12:09:32 ubuntu
/usr/local/sbin/kamailio[7817]: NOTICE: <script>:
SLD: in RELAY, t_relay returned 1 err.rcode is
<null> t_r_c is 100 sent = 0</div>
</div>
<div><br>
</div>
<div>So the same.</div>
<div><br>
</div>
<div>From the trace I can see that the failure block is only
executed after the t_relay returns. The failure block
runs on a different pid.</div>
<div><br>
</div>
<div>
<div>So there is a race. Or maybe the avp doesn't work
across branches or something?</div>
</div>
<div><br>
</div>
<div>Clues would be welcome!</div>
<div><br>
</div>
<div>Steve</div>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
</div>
<br>
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<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
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