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<div name="messageBodySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;">For CANCEL and in-dialog ACK I take care of it, cause mostly of them generated by A or B. But yes, in some cases it will not work.
<div>Anyway, it’s better than nothing :)</div>
</div>
<div name="messageSignatureSection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
Regards, Igor</div>
<div name="messageReplySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
On Sep 29, 2017, 1:37 PM +0300, Bogdan-Andrei Iancu <bogdan@opensips.org>, wrote:<br />
<blockquote type="cite" style="margin: 5px 5px; padding-left: 10px; border-left: thin solid #1abc9c;"><tt>Hi Igor,<br />
<br />
I do not want ruin your enthusiasm here, but that is not enough, as there are messages generated by OpenSIPS, like the ACK (for negative replies) and CANCEL requests - and they will be build by OpenSIPS internals with the un-modified cseq value.<br />
<br />
Regards,<br /></tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
</pre>
<div class="moz-cite-prefix">On 09/27/2017 02:49 PM, Igor Olhovskiy wrote:<br /></div>
<blockquote type="cite" cite="mid:5f46c000-97c0-4996-9faf-5fc993a66032@Spark" style="margin: 5px 5px; padding-left: 10px; border-left: thin solid #e67e22;">
<div name="messageBodySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;">Got it, thanks.
<div><br /></div>
<div>Done with something alike</div>
<div>
<div><br /></div>
<div>route[RESTORE_CSEQ] {</div>
<div> if (isflagset(AUTH_DONE) && is_avp_set("$avp(original_cseq)")) {</div>
<div> remove_hf("CSeq:");</div>
<div> append_hf("CSeq: $avp(original_cseq) $rm\r\n", "Call-ID");</div>
<div> xlog("L_INFO", "[RESTORE_CSEQ]: [F=$fu R=$ru D=$du M=$rm IP=($si:$sp $Ri:$Rp) ID=$ci CSeq: $avp(original_cseq)"); </div>
<div> }</div>
<div>}</div>
<div><br /></div>
<div>route[INCREASE_CSEQ] {</div>
<div> if (isflagset(AUTH_DONE) && is_avp_set("$avp(original_cseq)")) {</div>
<div> $var(inc_cseq) = $(avp(original_cseq){s.int}) + 1;</div>
<div> remove_hf("CSeq:");</div>
<div><span class="Apple-tab-span" style="white-space:pre"></span> append_hf("CSeq: $var(inc_cseq) $rm\r\n", "Call-ID");</div>
<div> xlog("L_INFO", "[INCREASE_CSEQ]: [F=$fu R=$ru D=$du M=$rm IP=($si:$sp $Ri:$Rp) ID=$ci CSeq: $avp(original_cseq) -> $var(inc_cseq)"); </div>
<div> }</div>
<div>}</div>
</div>
<div><br /></div>
<div>And than - put these routes in necessary places.</div>
</div>
<div name="messageSignatureSection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
Regards, Igor</div>
<div name="messageReplySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
On 26 сент. 2017 г., 19:51 +0300, Bogdan-Andrei Iancu <a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org"><bogdan@opensips.org></a>, wrote:<br />
<blockquote type="cite" style="margin: 5px 5px; padding-left: 10px; border-left: thin solid #3498db;"><tt>Hello Igor,<br />
<br />
Right now OpenSIPs does not support increasing the cseq during UAC authentication. At the end this is a limitation of the a proxy versus a B2B :)<br />
<br />
Best regards,<br /></tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com" moz-do-not-send="true">http://www.opensips-solutions.com</a>
</pre>
<div class="moz-cite-prefix">On 09/25/2017 04:00 PM, Igor Olhovskiy wrote:<br /></div>
<blockquote type="cite" cite="mid:f47265df-fca8-4674-b14d-764db6e0d9bf@Spark" style="margin: 5px 5px; padding-left: 10px; border-left: thin solid #d35400;">
<div name="messageBodySection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;">Hi!
<div><br /></div>
<div>I’m trying to implement scenario, when OpenSIPS would be a proxy for IP auth SIP side and username/pass auth other side.</div>
<div>So, call scenario would be like</div>
<div><br /></div>
<div>1. A -> INVITE -> OpenSIPS B</div>
<div>2. A OpenSIPS -> INVITE -> B</div>
<div>3. A OpenSIPS <- 401 <- B</div>
<div>4. A OpenSIPS -> INVITE (auth) -> B</div>
<div>5. A OpenSIPS <- 200 <- B</div>
<div>6. A <- 200 <- OpenSIPS</div>
<div><br /></div>
<div>But the problem is in CSeq. On step 4, when sending INVITE with Auth CSeq should be changed from original (usually incremented), but on step 6, when replying back to A, it should be original.</div>
<div><br /></div>
<div>I didn’t found better solution, than to manually manipulate with CSeq with append/remove headers.</div>
<div>So, maybe there is more OpenSIPS - wise way of doing this?</div>
</div>
<div name="messageSignatureSection" style="font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, sans-serif;"><br />
Regards, Igor</div>
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