<div dir="ltr">First of all thanks for your quick response.<div><br></div><div>At the moment this is the point where we have the t_on_reply for that onreply_route I sent in the previous email.</div><div><br></div><div><div>route[1] {</div><div><span class="" style="white-space:pre"> </span>if(!cache_fetch("local", "outerip_$var(destinationIp)", $avp(outerIp))) {</div><div><span class="" style="white-space:pre"> </span>get_outer_ip("$var(destinationIp)", "$avp(outerIp)");</div><div><span class="" style="white-space:pre"> </span>cache_store("local", "outerip_$var(destinationIp)", "$avp(outerIp)", 10);</div><div><span class="" style="white-space:pre"> </span>}</div><div><br></div><div><span class="" style="white-space:pre"> </span>$fs = $proto + ":" + $avp(outerIp);</div><div><br></div><div><span class="" style="white-space:pre"> </span>if (is_method("BYE|CANCEL")) {</div><div><span class="" style="white-space:pre"> </span>unforce_rtp_proxy();</div><div><span class="" style="white-space:pre"> </span>} else if (is_method("INVITE")){</div><div><span class="" style="white-space:pre"> </span>if (has_body("application/sdp")) {</div><div><span class="" style="white-space:pre"> </span>$var(trustconnectionip) = "%TRUSTCONNECTIONIP%";</div><div><span class="" style="white-space:pre"> </span>$var(ciptrusted) = "no";</div><div><span class="" style="white-space:pre"> </span>if ($var(trustconnectionip)=="yes") {</div><div><span class="" style="white-space:pre"> </span>$var(ciptrusted) = "yes";</div><div><span class="" style="white-space:pre"> </span>} else if ($var(trustconnectionip)=="auto") {</div><div><span class="" style="white-space:pre"> </span>$var(sdpc) = $(rb{sdp.line,c}{s.substr,9,0});</div><div><span class="" style="white-space:pre"> </span>if($td == $fd && $td != $var(sdpc)) {</div><div><span class="" style="white-space:pre"> </span>$var(ciptrusted) = "yes";</div><div><span class="" style="white-space:pre"> </span>}</div><div><span class="" style="white-space:pre"> </span>}</div><div><span class="" style="white-space:pre"> </span>if ($var(ciptrusted)=="yes") {</div><div><span class="" style="white-space:pre"> </span>rtpproxy_offer("focnr");</div><div><span class="" style="white-space:pre"> </span>} else {</div><div><span class="" style="white-space:pre"> </span>rtpproxy_offer("focn");</div><div><span class="" style="white-space:pre"> </span></div><div><span class="" style="white-space:pre"> </span>}</div><div><span class="" style="white-space:pre"> </span>}</div><div><span class="" style="white-space:pre"> </span>}</div><div><br></div><div><span class="" style="white-space:pre"> </span># Prevent $var(destinationPort) from getting default port number 5060 for TLS if no port specified in R-URI.</div><div><span class="" style="white-space:pre"> </span>if($(ru{uri.port})=="" && $proto=="tls" && $var(destinationPort)=="5060") {</div><div><span class="" style="white-space:pre"> </span>$var(destinationPort) = 5061;</div><div><span class="" style="white-space:pre"> </span>}</div><div><br></div><div><span class="" style="white-space:pre"> </span># force the transport protocol to the same one the client used</div><div><span class="" style="white-space:pre"> </span>$du = "sip:"+$var(destinationIp)+":"+$var(destinationPort)+";transport="+$proto;</div><div><br></div><div><span class="" style="white-space:pre"> </span>t_on_reply("1");</div><div><br></div><div><span class="" style="white-space:pre"> </span># for INVITEs enable some additional helper routes</div><div><span class="" style="white-space:pre"> </span>if (is_method("INVITE")) {</div><div><span class="" style="white-space:pre"> </span>t_on_failure("1");</div><div><span class="" style="white-space:pre"> </span>}</div><div><br></div><div><span class="" style="white-space:pre"> </span>if (!t_relay()) {</div><div><span class="" style="white-space:pre"> </span>xlog("L_INFO", "Relay error");</div><div><span class="" style="white-space:pre"> </span>sl_reply_error();</div><div><span class="" style="white-space:pre"> </span>}</div><div><span class="" style="white-space:pre"> </span>exit;</div><div>}</div></div><div><br></div><div>The route[1] is set in the main route under this conditions</div><div><br></div><div><div>if (has_totag()) {</div><div><span class="" style="white-space:pre"> </span># sequential request within a dialog should</div><div><span class="" style="white-space:pre"> </span># take the path determined by record-routing</div><div><span class="" style="white-space:pre"> </span>if (loose_route()) {</div><div><span class="" style="white-space:pre"> </span>$var(destinationIp) = $avp(requestIp);</div><div><span class="" style="white-space:pre"> </span>$var(destinationPort) = $rp;</div><div><br></div><div><span class="" style="white-space:pre"> </span>if (is_method("INVITE")) {</div><div><span class="" style="white-space:pre"> </span># even if in most of the cases is useless, do RR for</div><div><span class="" style="white-space:pre"> </span># re-INVITEs alos, as some buggy clients do change route set</div><div><span class="" style="white-space:pre"> </span># during the dialog.</div><div><span class="" style="white-space:pre"> </span>record_route();</div><div><span class="" style="white-space:pre"> </span>}</div><div><span class="" style="white-space:pre"> </span># route it out to whatever destination was set by loose_route()</div><div><span class="" style="white-space:pre"> </span># in $du (destination URI).</div><div><span class="" style="white-space:pre"> </span>route(1);</div></div><div>...</div><div> exit;</div><div>}</div><div>....</div><div><br></div><div>And if there is no REGISTER, PUBLISH, CANCEL</div><div><br></div><div>route(1);</div><div>}</div><div><br></div><div>About the engage_rtp_proxy I was actually thinking about it but I'm a bit scared because of the bridge mode, as it is a "generic" script, I need to identify all this cases and create configuration cases to make scripts automatically for those setups. </div><div><br></div><div>Srly, thanks for the response >.< I have only 1 week experience with this protocol and I'm having nightmares already.</div><div><br></div><div>Kind regards</div><div>Jose Palma</div><div class="gmail_extra"><br><div class="gmail_quote">2015-09-30 16:51 GMT+02:00 Trevor Steyn <span dir="ltr"><<a href="mailto:trevor@webon.co.za" target="_blank">trevor@webon.co.za</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
HI Raistlin, <br>
<br>
from your script we cannot see where you are setting t_on_reply
routes as im sure this is where you are probably missing the
rtpproxy_answer() but cannot see why as that part of the script is
missing<br>
<br>
<br>
maybe you can also try use engage_rtp_proxy() and you wont have to
worry about the answer and you could remove the reply routes and
just relay <br>
<br>
<div><span style="white-space:pre-wrap"> </span>if
($var(ciptrusted)=="yes") {</div>
<div><span style="white-space:pre-wrap"> </span>engage_rtp_proxy("focnr");</div>
<div><span style="white-space:pre-wrap"> </span>} else {</div>
<div><span style="white-space:pre-wrap"> </span>engage_rtpproxy("focn");</div>
<div><span style="white-space:pre-wrap"> </span>}<br>
<br>
Regards<br>
Trevor Steyn<br>
<br>
</div><div><div class="h5">
<br>
<br>
<br>
<br>
<div>On 30/09/2015 14:56, Raistlin Majere
wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr">Hi,
<div><br>
</div>
<div>Recently the maintainer of the SIPs proxy in our company
quit, and well I'm the new in charge of this project, the bad
new is I had 0 experience with SIP. After some week I got my
first case related to our "SIP proxy".</div>
<div><br>
</div>
<div>We are using OpenSIP 1.8 within our Firewall to handle the
protocol and the NAT that it will imply within a Firewall. The
script my ex coworker did is working in 99% of cases but this
specific case. </div>
<div><br>
</div>
<div>The customer has one setup like this</div>
<div><br>
</div>
<div><br>
</div>
<div>PhoneA</div>
<div>PhoneB</div>
<div>PhoneC --- Call Manager --- Firewall --- SBC --- Farm of
RTP Media servers</div>
<div>....</div>
<div>PhoneN</div>
<div><br>
</div>
<div>The opensips instance is running within the firewall. The
next IPs are fake but follow the "rules" of internal/external
it is just to avoid problems</div>
<div><br>
</div>
<div>Call Manager: 172.17.1.1</div>
<div>Firewall: Internal Network 192.168.0.10</div>
<div>Firewall: Extenal Network 62.1.1.10</div>
<div>SBC: 210.200.100.100</div>
<div>Farm of Media Servers: <a href="http://210.200.100.128/25" target="_blank">210.200.100.128/25</a></div>
<div><br>
</div>
<div>So the invite works as Expected but on the 180 Ringing
either 200 OK the moment the messages traverse the SIP proxy,
doesn't contain the "farm" IP but the SBC IP.</div>
<div><br>
</div>
<div>This are the 180 Ringing:</div>
<div><br>
</div>
<div>From SBC to the Firewall</div>
<div><br>
</div>
<div>
<div>SIP/2.0 180 Ringing</div>
<div>Via:
SIP/2.0/UDP 62.1.1.10:5060;branch=z9hG4bKd091.937a047.0</div>
<div>Via:
SIP/2.0/UDP 172.17.1.1:5060;rport=5060;received=172.17.1.1;branch=z9hG4bKac393424402</div>
<div>From: <<a href="mailto:sip%3A5000@210.200.100.100" target="_blank">sip:5000@210.200.100.100</a>>;tag=1c393411873</div>
<div>To: <<a href="mailto:sip%3A5001@210.200.100.100" target="_blank">sip:5001@210.200.100.100</a>;user=phone>;tag=gK08c71cc5</div>
<div>Call-ID: <a href="mailto:39341083229920151062@172.17.1.1" target="_blank">39341083229920151062@172.17.1.1</a></div>
<div>CSeq: 1 INVITE</div>
<div>Record-Route:
<sip:62.1.1.10:5060;r2=on;lr;did=6d8.933abaa6></div>
<div>Record-Route:
<sip:192.168.0.10:5060;r2=on;lr;did=6d8.933abaa6></div>
<div>Contact: <<a href="http://sip:5001@210.200.100.100:5060" target="_blank">sip:5001@210.200.100.100:5060</a>></div>
<div>Allow:
INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS,MESSAGE,PUBLISH</div>
<div>Require: 100rel</div>
<div>RSeq: 433990</div>
<div>Content-Length: 266</div>
<div>Content-Disposition: session; handling=required</div>
<div>Content-Type: application/sdp</div>
<div><br>
</div>
<div>v=0</div>
<div>o=Sonus_UAC 176482 50736 IN IP4 210.200.100.100</div>
<div>s=SIP Media Capabilities</div>
<div>c=IN IP4 210.200.100.243</div>
<div>t=0 0</div>
<div>m=audio 61348 RTP/AVP 8 101</div>
<div>a=rtpmap:8 PCMA/8000</div>
<div>a=rtpmap:101 telephone-event/8000</div>
<div>a=fmtp:101 0-15</div>
<div>a=sendrecv</div>
<div>a=ptime:20</div>
<div>a=silenceSupp:off - - - -</div>
</div>
<div><br>
</div>
<div>After the firewall + Opensips have processed this message
to the call center</div>
<div><br>
</div>
<div>
<div>SIP/2.0 180 Ringing</div>
<div>Via:
SIP/2.0/UDP 172.17.1.1:5060;branch=z9hG4bKac393424402</div>
<div>From: <<a href="mailto:sip%3A5000@210.200.100.100" target="_blank">sip:5000@210.200.100.100</a>>;tag=1c393411873</div>
<div>To: <<a href="mailto:sip%3A5001@210.200.100.100" target="_blank">sip:5001@210.200.100.100</a>;user=phone>;tag=gK08c71cc5</div>
<div>Call-ID: <a href="mailto:39341083229920151062@172.17.1.1" target="_blank">39341083229920151062@172.17.1.1</a></div>
<div>CSeq: 1 INVITE</div>
<div>Record-Route:
<sip::62.1.1.10:5060;r2=on;lr;did=6d8.933abaa6></div>
<div>Record-Route:
<sip:192.168.0.10:5060;r2=on;lr;did=6d8.933abaa6></div>
<div>Contact: <<a href="mailto:sip%3A5001@210.200.100.100" target="_blank">sip:5001@210.200.100.100</a>></div>
<div>Allow:
INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS,MESSAGE,PUBLISH</div>
<div>Require: 100rel</div>
<div>RSeq: 433990</div>
<div>Content-Length: 295</div>
<div>Content-Disposition: session; handling=required</div>
<div>Content-Type: application/sdp</div>
<div><br>
</div>
<div>v=0</div>
<div>o=Sonus_UAC 176482 50736 IN IP4 210.200.100.100</div>
<div>s=SIP Media Capabilities</div>
<div>t=0 0</div>
<div>m=audio 4845 RTP/AVP 8 101</div>
<div>a=rtpmap:8 PCMA/8000</div>
<div>a=rtpmap:101 telephone-event/8000</div>
<div>a=fmtp:101 0-15</div>
<div>a=sendrecv</div>
<div>a=ptime:20</div>
<div>a=silenceSupp:off - - - -</div>
<div>a=nortpproxy:yes</div>
<div>c=IN IP4 210.200.100.100</div>
<div>a=rtcp:4848</div>
</div>
<div><br>
</div>
<div>----</div>
<div><br>
</div>
<div>The RTP "acceptor" is created under the IP 210.200.100.100
instead of the IP 210.200.243 as the SIPproxy is changing the
SDP connection information.</div>
<div><br>
</div>
<div><br>
</div>
<div>This is the logic we are using in our script for the INVITE
and for the onreply_route</div>
<div><br>
</div>
<div>
<div><span style="white-space:pre-wrap"> </span>if
(is_method("INVITE")){</div>
<div><span style="white-space:pre-wrap"> </span>if
(has_body("application/sdp")) {</div>
<div><span style="white-space:pre-wrap"> </span>$var(trustconnectionip)
= "%TRUSTCONNECTIONIP%";</div>
<div><span style="white-space:pre-wrap"> </span>$var(ciptrusted)
= "no";</div>
<div><span style="white-space:pre-wrap"> </span>if
($var(trustconnectionip)=="yes") {</div>
<div><span style="white-space:pre-wrap"> </span>$var(ciptrusted)
= "yes";</div>
<div><span style="white-space:pre-wrap"> </span>} else if
($var(trustconnectionip)=="auto") {</div>
<div><span style="white-space:pre-wrap"> </span>$var(sdpc)
= $(rb{sdp.line,c}{s.substr,9,0});</div>
<div><span style="white-space:pre-wrap"> </span>if($td ==
$fd && $td != $var(sdpc)) {</div>
<div><span style="white-space:pre-wrap"> </span>$var(ciptrusted)
= "yes";</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span>if
($var(ciptrusted)=="yes") {</div>
<div><span style="white-space:pre-wrap"> </span>rtpproxy_offer("focnr");</div>
<div><span style="white-space:pre-wrap"> </span>} else {</div>
<div><span style="white-space:pre-wrap"> </span>rtpproxy_offer("focn");</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
<div><span style="white-space:pre-wrap"> </span>}</div>
</div>
<div><span style="white-space:pre-wrap"> }</span><br>
</div>
<div><span style="white-space:pre-wrap"><br>
</span></div>
<div><span style="white-space:pre-wrap"><br>
</span></div>
<div><span style="white-space:pre-wrap"><br>
</span></div>
<div><span style="white-space:pre-wrap">And on the onreply</span></div>
<div><span style="white-space:pre-wrap"><br>
</span></div>
<div><span style="white-space:pre-wrap"> </span><span style="white-space:pre-wrap">if (has_body("application/sdp")) {
$var(trustconnectionip) = "%TRUSTCONNECTIONIP%";
$var(ciptrusted) = "no"; if ($var(trustconnectionip)=="yes")
{ $var(ciptrusted) = "yes"; } else if
($var(trustconnectionip)=="auto") { $var(sdpc) =
$(rb{sdp.line,c}{s.substr,9,0}); if($td == $fd &&
$td != $var(sdpc)) { $var(ciptrusted) = "yes"; } } if
($var(ciptrusted)=="yes") { rtpproxy_answer("fr"); } else {
rtpproxy_answer("f"); } }</span><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Where TRUSTONNECTIONIP = "no" so basically we are doing</div>
<div><br>
</div>
<div>rptproxy_offer("focn") and rtpproxy_answer("f").</div>
<div><br>
</div>
<div>Kind regards:</div>
<div><br>
</div>
<div>Jose Palma</div>
<div><br>
</div>
<div><br>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><pre>_______________________________________________
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</blockquote>
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</div>
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