<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
</head>
<body>
<p>Hello,</p>
<p><br>
</p>
<p><br>
</p>
<p>if you have this topology:</p>
<p><br>
</p>
<p>[freeswitch] ====> [kamailio] ====> [gateway]</p>
<p><br>
</p>
<p>and the gateway is sending back 407, the I would still use
freeswitch to do the authentication, otherwise you need dialog
module in kamailio to track cseq changes. FreeSwitch originates
the call and then can increase the cseq as it needs. If the
gateway is a proxy (e.g., another Kamailio), then cseq increase is
not needed and you can just do it with uac module without dialog
module.<br>
</p>
<p><br>
</p>
<p>Regarding your question of adding the Proxy-Authorization header
in the first INVITE, that can work sometimes if you know the nonce
the gateway is going to use, which can be the case of caching the
nonce when receiving the 407 first time and reusing it later.
However, the nonce typically is invalidated after a while (or even
on first usage), so reusing it is not going to work always. Which
is for good reasons, otherwise there can be reply-attacks.</p>
<p><br>
</p>
<p>Cheers,<br>
Daniel<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 10.05.20 18:53, Edward Romanenco
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:AM0PR04MB66929E8FEBCA9CC00702F05CC7A00@AM0PR04MB6692.eurprd04.prod.outlook.com">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Hi!</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
I've using a SIP setup that includes both Kamailio &
Freeswitch, invites are passed from Freeswitch and relayed by
Kamailio to various dispatchers, I would like to have Kamailio
authenticating when Proxy Authentication is required. </div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style=""><font face="Calibri, Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 12pt;">As I
understood, this can be achieved with the help of a failure
route, problem is, when I'm utilizing this method - the 407
response gets reverted back to Freeswitch, which returns the
revised invite filled with the default Freeswitch
username/password, how can let Kamailio handle the
authentication once receiving the 407? Can I work straight
without relying on a failure route, but having the Proxy
</span>Authentication<span style="font-size: 12pt;"> header on
my original invite?</span></font></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
This is my relevant configuration -</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span>route[RELAY] {<br>
</span>
<div> if (is_method("INVITE|BYE|SUBSCRIBE|UPDATE")) {<br>
</div>
<div> if(!t_is_set("branch_route")) {<br>
</div>
<div> t_on_branch("MANAGE_BRANCH");<br>
</div>
<div> }<br>
</div>
<div> }<br>
</div>
<div> if (is_method("INVITE|SUBSCRIBE|UPDATE")) {<br>
</div>
<div> if(!t_is_set("onreply_route")) {<br>
</div>
<div> t_on_reply("MANAGE_REPLY");<br>
</div>
<div> }<br>
</div>
<div> }<br>
</div>
<div> if (is_method("INVITE")) {<br>
</div>
<div> if(!t_is_set("failure_route")) {<br>
</div>
<div> t_on_failure("KAM_AUTH");<br>
</div>
<div> }<br>
</div>
<div> }<br>
</div>
<div><br>
</div>
<div> if (!t_relay()) {<br>
</div>
<div> sl_reply_error();<br>
</div>
<div> }<br>
</div>
<div> exit;<br>
</div>
<div>}<br>
</div>
<div><br>
</div>
<div>failure_route[KAM_AUTH] {<br>
</div>
<div> if(t_check_status("401|407")) {<br>
</div>
<div> $avp(auser) = "xxx";<br>
</div>
<div> $avp(apass) = "yyy";<br>
</div>
<div> t_on_failure("OUTGOING_FAILURE");<br>
</div>
<div> uac_auth();<br>
</div>
<div> t_relay();<br>
</div>
<div> exit;<br>
</div>
<div> }<br>
</div>
<span>}</span><br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span><br>
</span></div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<span>Edward</span></div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
Kamailio (SER) - Users Mailing List
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a>
<a class="moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
</body>
</html>