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<p class="MsoNormal">Hi Daniel,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">thank you for the reply. Yes, I also thought about the return value of the t_relay(). Will give it a try for this scenario.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thanks for the hint regarding disabling the internal reply.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Henning<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB">-- <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Henning Westerholt – </span><a href="https://skalatan.de/blog/"><span lang="EN-GB">https://skalatan.de/blog/</span></a><span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Kamailio services – </span><a href="https://gilawa.com/"><span lang="EN-GB">https://gilawa.com</span></a>
<span lang="EN-GB"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><b><span style="mso-fareast-language:DE">From:</span></b><span style="mso-fareast-language:DE"> Daniel-Constantin Mierla <miconda@gmail.com>
<br>
<b>Sent:</b> Friday, November 27, 2020 2:08 PM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>; Henning Westerholt <hw@skalatan.de><br>
<b>Cc:</b> Kamailio (SER) - Development Mailing List <sr-dev@lists.kamailio.org><br>
<b>Subject:</b> Re: [SR-Users] handling of locally generated 478 errors<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
<p style="margin-left:35.4pt"><span style="mso-fareast-language:DE"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:35.4pt">On 27.11.20 14:05, Daniel-Constantin Mierla wrote:<o:p></o:p></p>
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<p style="margin-left:35.4pt">Hello,<o:p></o:p></p>
<p style="margin-left:35.4pt">you should be able to disable sending internal replies inside tm in case of t_relay() failure with:<o:p></o:p></p>
<p style="margin-left:35.4pt"> * <a href="https://www.kamailio.org/docs/modules/stable/modules/tm.html#tm.f.t_set_disable_internal_reply">
https://www.kamailio.org/docs/modules/stable/modules/tm.html#tm.f.t_set_disable_internal_reply</a><o:p></o:p></p>
<p style="margin-left:35.4pt">The to handling in the IF branch of t_relay() execution if it returns false. There is no need to use event_route from sl module in this case.<o:p></o:p></p>
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<p style="margin-left:35.4pt">^^^ above, somehow, parts got removed, was supposed to be:<o:p></o:p></p>
<p style="margin-left:35.4pt">Then do error handling in the ...<o:p></o:p></p>
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<p style="margin-left:35.4pt">Cheers,<br>
Daniel<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">On 27.11.20 09:41, Henning Westerholt wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt">Hello,<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">any comment on this topic? Would be great to get an opinion at least on the first question, then I could document it or open an issue for it.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">Henning</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">-- </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">Henning Westerholt –
</span><a href="https://skalatan.de/blog/"><span lang="EN-GB">https://skalatan.de/blog/</span></a><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB">Kamailio services –
</span><a href="https://gilawa.com/"><span lang="EN-GB">https://gilawa.com</span></a>
<o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><span lang="EN-GB"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:70.8pt"><b><span style="mso-fareast-language:DE">From:</span></b><span style="mso-fareast-language:DE"> Henning Westerholt
<br>
<b>Sent:</b> Wednesday, November 25, 2020 6:53 PM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List <a href="mailto:sr-users@lists.kamailio.org">
<sr-users@lists.kamailio.org></a><br>
<b>Cc:</b> Kamailio (SER) - Development Mailing List <a href="mailto:sr-dev@lists.kamailio.org">
<sr-dev@lists.kamailio.org></a><br>
<b>Subject:</b> handling of locally generated 478 errors</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:70.8pt"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt">Hello,<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">I want to ask for your opinion on the best approach regarding the handling of locally generated 478 errors.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">To give an example, like the ones generated from TM during t_relay() on an unresolvable destination.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB" style="font-size:10.5pt">Nov 25 17:40:13 kamailio[19345]: ERROR: {28607414 INVITE bba500ac-a9df-1239-6693-00505682c04d} tm [ut.h:286]: uri2dst2(): failed to resolve "invalid.skalatan.de" :unresolvable
A or AAAA request (-7)<br>
Nov 25 17:40:13 kamailio[19345]: ERROR: {28607414 INVITE bba500ac-a9df-1239-6693-00505682c04d} tm [t_fwd.c:1738]: t_forward_nonack(): failure to add branches<br>
Nov 25 17:40:13 kamailio[19345]: CRITICAL: {28607414 INVITE bba500ac-a9df-1239-6693-00505682c04d} rtpengine [../../core/parser/../ip_addr.h:658]: ip_addr2sbuf(): unknown address family 0</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">These errors will not show up in onreply or failure_route. A long time ago this was discussed on the list [1], as some functionality were phased out out that support these scenarios.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Kamailio will try to generate a 478 with TM, this will obviously fail as well, and then generate a 478 with SL.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Question 1)</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Is this intentional that the internally generated 478 is not showing up in the failure_route, like for for 408? This has been tested several times, but it is a complicated configuration.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Question 2)</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Are there any other (better) ideas how to handle that besides using a “event_route[sl:local-response]” to catch this, e.g. to tear down otherwise stale rtpengine sessions etc..? As a side note,
event_route[tm:local-response] seems not to work as well because of the tm failure.</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Henning</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">[1] <a href="https://lists.kamailio.org/pipermail/sr-users/2011-June/069020.html">
https://lists.kamailio.org/pipermail/sr-users/2011-June/069020.html</a></span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">-- </span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Henning Westerholt –
</span><a href="https://skalatan.de/blog/"><span lang="EN-GB">https://skalatan.de/blog/</span></a><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB">Kamailio services –
</span><a href="https://gilawa.com/"><span lang="EN-GB">https://gilawa.com</span></a>
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:70.8pt"><span lang="EN-GB"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-left:35.4pt"><span style="mso-fareast-language:DE"><br>
<br>
<o:p></o:p></span></p>
<pre style="margin-left:35.4pt">_______________________________________________<o:p></o:p></pre>
<pre style="margin-left:35.4pt">Kamailio (SER) - Users Mailing List<o:p></o:p></pre>
<pre style="margin-left:35.4pt"><a href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a><o:p></o:p></pre>
<pre style="margin-left:35.4pt"><a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></pre>
</blockquote>
<pre style="margin-left:35.4pt">-- <o:p></o:p></pre>
<pre style="margin-left:35.4pt">Daniel-Constantin Mierla -- <a href="http://www.asipto.com">www.asipto.com</a><o:p></o:p></pre>
<pre style="margin-left:35.4pt"><a href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a><o:p></o:p></pre>
<pre style="margin-left:35.4pt">Funding: <a href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a><o:p></o:p></pre>
</blockquote>
<pre style="margin-left:35.4pt">-- <o:p></o:p></pre>
<pre style="margin-left:35.4pt">Daniel-Constantin Mierla -- <a href="http://www.asipto.com">www.asipto.com</a><o:p></o:p></pre>
<pre style="margin-left:35.4pt"><a href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a><o:p></o:p></pre>
<pre style="margin-left:35.4pt">Funding: <a href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a><o:p></o:p></pre>
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