<div><br></div><div dir="auto">Can you share a trace?</div><div dir="auto"><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">On Fri, 7 May 2021 at 21:12, Igor Olhovskiy <<a href="mailto:igorolhovskiy@gmail.com">igorolhovskiy@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
<div>
<p>Yes. It passes<font face="Courier New, Courier, monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)"> uri
== myself</font> condition on auth.<br>
</p>
<pre cols="72" style="font-family:monospace">Regards,
Igor</pre></div><div>
<div>On 07.05.2021 17:32, David Villasmil
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Have you tried verifying Kamailio actually believes
the FQDN is itself?
<div>
<div><br clear="all">
<div>
<div dir="ltr" data-smartmail="gmail_signature">
<div dir="ltr">
<div>Regards,</div>
<div><br>
</div>
David Villasmil
<div>email: <a href="mailto:david.villasmil.work@gmail.com" target="_blank">david.villasmil.work@gmail.com</a></div>
<div>phone: +34669448337</div>
</div>
</div>
</div>
<br>
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, May 7, 2021 at 4:18 PM
Igor Olhovskiy <<a href="mailto:igorolhovskiy@gmail.com" target="_blank">igorolhovskiy@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
<div>
<p>David,</p>
<p>Yes, I did added it, means it was there, but
is_first_hop() was blocking adding it. I think it's some
leftovers from default config.</p>
<p>So, my conclusion, that is_first_hop() is ok with IP
addresses, but not ok with FQDN in route. Although FQDN is
added as alias<br>
</p>
<pre cols="72" style="font-family:monospace">Regards,
Igor</pre>
<div>On 07.05.2021 16:07, David Villasmil wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto">Did you add the handle_ruri_alias() as
suggested by Daniel? I had something like this where I
would get “unable to resolve blah blah blah" and it’s
because the RURI is the actual wss “address” which is
unresolvable, so executing the function forces kamailio
to take the alias instead.</div>
<div dir="auto"><br>
</div>
<div><br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, 7 May 2021
at 13:48, Igor Olhovskiy <<a href="mailto:igorolhovskiy@gmail.com" target="_blank">igorolhovskiy@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
<div>
<p>Daniel,</p>
<p>Seems to be it's really the case, but with
other function</p>
<p>With FQDN in RR <br>
</p>
<h3> <code style="font-family:monospace">is_first_hop()</code></h3>
<p>is not acting correctly for reply. <br>
</p>
<p> </p>
<blockquote type="cite">For incoming SIP replies,
it means that top Record-Route URI is 'myself'
and source address is not matching it</blockquote>
But in Record-Route we have "myself", but <b>is_first_hop()</b>
returning 0. <br>
<p>Thanks!<br>
</p>
<pre cols="72" style="font-family:monospace">Regards,
Igor</pre>
</div>
<div>
<div>On 07.05.2021 14:22, Daniel-Constantin Mierla
wrote:<br>
</div>
<blockquote type="cite">
<p>OK, because looping was something that should
not have happened in this case.</p>
<p>Then the problem is that you do not do
nat-traversal-like processing for
websocket/webrtc traffic. You have to use
set_contact_alias() + handle_ruri_alias()
because the webrtc endpoints do not set
"valid" contact addresses.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 07.05.21 14:13, Igor Olhovskiy wrote:<br>
</div>
<blockquote type="cite">
<p>Ah, no, sorry, I was wrong at this one,</p>
<p>This just is not sent with "unable to
resolve address toleivu2gdbh.invalid". <br>
</p>
<p>Sorry. Looping were something else during
my tests, this just with <b>advertise</b>
added<br>
</p>
<pre cols="72" style="font-family:monospace">Regards,
Igor</pre>
<div>On 07.05.2021 14:02, Daniel-Constantin
Mierla wrote:<br>
</div>
<blockquote type="cite">
<p>This looks like incoming ACK, because
there is only one Via header, so it is not
what proxy forwards -- that one is
relevant to see what headers were consumed
and added.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 07.05.21 13:51, Igor Olhovskiy
wrote:<br>
</div>
<blockquote type="cite"> Sure.
<p><font face="Courier New, Courier,
monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)">ACK <a style="font-family:"Courier New",Courier,monospace">sip:88290@toleivu2gdbh.invalid;transport=wss</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
A_IP_ADDRESS:5060;rport;branch=z9hG4bKPj8d05548a-91ef-4332-8617-32f8eeebf8f2<br>
From: <a style="font-family:"Courier New",Courier,monospace"><sip:88881@A_IP_ADDRESS></a>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d<br>
To: <a style="font-family:"Courier New",Courier,monospace"><sip:88290@KAMAILIO_FQDN></a>;tag=hvra7mj3q0<br>
Call-ID:
46f44741-d155-4dd5-8fd8-78e540fc1acb<br>
CSeq: 18326 ACK<br>
Route: <a style="font-family:"Courier New",Courier,monospace"><sip:KAMAILIO_FQDN;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss></a><br>
Route: <a style="font-family:"Courier New",Courier,monospace"><sip:KAMAILIO_FQDN:8089;transport=ws;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss></a><br>
Max-Forwards: 70<br>
User-Agent: Asterisk PBX 13.33.0<br>
Content-Length: 0</font></p>
<p><br>
</p>
<p>By loop I meant, Kamailio just relaying
it back to self and discard.<br>
</p>
<pre cols="72" style="font-family:monospace">Regards,
Igor</pre>
<div>On 07.05.2021 13:48,
Daniel-Constantin Mierla wrote:<br>
</div>
<blockquote type="cite">
<p>Can you paste the ACK that loops,
after being handled once by Kamailio?</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 07.05.21 13:25, Igor Olhovskiy
wrote:<br>
</div>
<blockquote type="cite">
<p>Daniel,</p>
<p>Yes, it is.</p>
<p><font face="Courier New, Courier,
monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)">alias=...<br>
</font></p>
<p>Also tried with</p>
<p><font face="Courier New, Courier,
monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)">listen = IP advertise
FQDN</font><br>
</p>
<p>same behavior, <font face="Courier
New, Courier, monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)">loose_route()</font>
stops acting correctly.<br>
</p>
<p>PS: Forgot to add, Kamailio 5.4.3 /
5.4.4<br>
</p>
<pre cols="72" style="font-family:monospace">Regards,
Igor</pre>
<div>On 07.05.2021 13:21,
Daniel-Constantin Mierla wrote:<br>
</div>
<blockquote type="cite">
<p>Hello,</p>
<p>is the KAMAILIO_FQDN set as local
domain for Kamailio (via alias
parameter or domain
module+register myself)?</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 07.05.21 11:17, Igor
Olhovskiy wrote:<br>
</div>
<blockquote type="cite">
<p>Hello,</p>
<p>I saw there are some topics on
this already and carefully
walked through all of them, but
can't solve following issue.</p>
<p>For a reason I do need that in
Record-Route header sent to
endpoint would present FQDN. If
it matters, it's UDP/WSS
conversion done on Kamailio.</p>
<p>So, scheme is quite simple<br>
</p>
<p>Enpoint A ->UDP->
Kamailio ->WSS-> Endpoint
B (NAT)<br>
</p>
<p>Main issue here, that if in
Record-Route headers it's FQDN,
but not IP addresses, on a new
transactions with a dialog (ACK
on 200, PRACK, BYE), Kamailio<b>
loose_route()</b> function
resolves address of destination
not current dialog, but actual
R-URI (or itself, if R-URI is
something from WebRTC world)
that is not correct due to NAT.<br>
</p>
<p>If in RR headers IP addresses
are present - all is working as
expected.</p>
<p>As an example (RR with FQDN)<br>
</p>
<p>B answers 200</p>
<p><font face="Courier New,
Courier, monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)">SIP/2.0
200 OK<br>
Record-Route: <a style="font-family:"Courier New",Courier,monospace"><sip:KAMAILIO_FQDN:8089;transport=ws;r2=on;lr=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss></a><br>
Record-Route: <a style="font-family:"Courier New",Courier,monospace"><sip:KAMAILIO_FQDN;r2=on;lr=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss></a><br>
Via: SIP/2.0/UDP
<A_IP_ADDRESS>:5060;received=A
IP
ADDRESS;rport=5060;branch=z9hG4bKPj67fb6d86-97d7-4231-995b-e54b0f62881e<br>
To: <<a style="font-family:"Courier New",Courier,monospace">sip:88290@</a><KAMAILIO_FQDN>>;tag=hvra7mj3q0<br>
From: <<a style="font-family:"Courier New",Courier,monospace">sip:+XXXX7688881@</a><KAMAILIO_FQDN>>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d<br>
Call-ID:
46f44741-d155-4dd5-8fd8-78e540fc1acb<br>
CSeq: 18326 INVITE<br>
Contact: <a style="font-family:"Courier New",Courier,monospace"><sip:88290@toleivu2gdbh.invalid;transport=wss></a><br>
Allow:
ACK,CANCEL,INVITE,MESSAGE,BYE,OPTIONS,INFO,NOTIFY,REFER<br>
Supported: outbound<br>
Content-Type: application/sdp<br>
Content-Length: 817</font></p>
<p><br>
</p>
<p>ACK looks like</p>
<p><font face="Courier New,
Courier, monospace" style="font-family:"Courier New",Courier,monospace;color:rgb(0,0,0)">ACK <a style="font-family:"Courier New",Courier,monospace">sip:88290@toleivu2gdbh.invalid;transport=wss</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
A_IP_ADDRESS:5060;rport;branch=z9hG4bKPj8d05548a-91ef-4332-8617-32f8eeebf8f2<br>
From: <a style="font-family:"Courier New",Courier,monospace"><sip:88881@A_IP_ADDRESS></a>;tag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d<br>
To: <a style="font-family:"Courier New",Courier,monospace"><sip:88290@KAMAILIO_FQDN></a>;tag=hvra7mj3q0<br>
Call-ID:
46f44741-d155-4dd5-8fd8-78e540fc1acb<br>
CSeq: 18326 ACK<br>
Route: <a style="font-family:"Courier New",Courier,monospace"><sip:FQDN;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss></a><br>
Route: <a style="font-family:"Courier New",Courier,monospace"><sip:FQDN:8089;transport=ws;lr;r2=on;ftag=0a3e31a6-96ad-42d0-9310-81b35cedbd3d;nat=wss></a><br>
Max-Forwards: 70<br>
User-Agent: Asterisk PBX
13.33.0<br>
Content-Length: 0</font><br>
</p>
<p>And Kamailio on <b>loose_route()</b>
loops ACK to itself. (with
result of function == 1)<br>
</p>
<p>In a case if in
Record-Route/Route headers just
IP address of Kamailio present,
all works as expected, but it's
not really behavior I want to
achieve.</p>
<p>I've tried to play with <b>record_route_preset("...")</b>
specifying only WSS part (as
suggested in <a href="https://skalatan.de/de/blog/kamailio-sbc-teams" target="_blank">https://skalatan.de/de/blog/kamailio-sbc-teams</a>)
with FQDN, but no luck.</p>
<p>Also wanted to try approach
using record_route_preset()
function in branch route, but it
was working only with first
branch, not affecting others
(but I assume having different
RR headers across branches is
not a good idea)</p>
<pre cols="72" style="font-family:monospace">--
Regards,
Igor</pre>
<br>
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</blockquote>
<pre cols="72" style="font-family:monospace">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" style="font-family:monospace">www.asipto.com</a>
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</pre>
</blockquote>
<pre cols="72" style="font-family:monospace">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" style="font-family:monospace">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" style="font-family:monospace">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" style="font-family:monospace">www.linkedin.com/in/miconda</a>
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</blockquote>
</blockquote>
<pre cols="72" style="font-family:monospace">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" style="font-family:monospace">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" style="font-family:monospace">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" style="font-family:monospace">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
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</blockquote>
</blockquote>
<pre cols="72" style="font-family:monospace">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" style="font-family:monospace">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" style="font-family:monospace">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" style="font-family:monospace">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
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</blockquote>
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</blockquote>
</div>
</div>
-- <br>
<div dir="ltr">
<div dir="ltr">
<div>Regards,</div>
<div><br>
</div>
David Villasmil
<div>email: <a href="mailto:david.villasmil.work@gmail.com" target="_blank">david.villasmil.work@gmail.com</a></div>
<div>phone: +34669448337</div>
</div>
</div>
<br>
<fieldset></fieldset>
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</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Regards,</div><div><br></div>David Villasmil<div>email: <a href="mailto:david.villasmil.work@gmail.com" target="_blank">david.villasmil.work@gmail.com</a></div><div>phone: +34669448337</div></div></div>