<div dir="ltr">OK got it. I also have a situation where I receive BYE from callee which has "To" tag but no route header. As per default script this request should not be allowed to go further. Would fix_route_dialog(); work or I should just relay it?<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Dec 31, 2014 at 1:37 AM, Bogdan-Andrei Iancu <span dir="ltr"><<a href="mailto:bogdan@opensips.org" target="_blank">bogdan@opensips.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<div><tt>Hi John,</tt><tt><br>
</tt><tt><br>
</tt><tt>1) if the request does not match any dialog it will go on
the "else" branch where it simply logs the "valid request" -
this is a simple example, but the idea is that without dialog
state you cannot check if valid or not; and you maybe do not
create dialogs for all your calls and maybe not all your
sequential request are part of a INVITE dialog (you may have
re-SUBSCRIBE or NOTIFYs)</tt><tt><br>
</tt><tt><br>
</tt><tt>2) the function just fixes, you need to send it out as
usual via the t_relay(),</tt><tt><br>
</tt><tt><br>
</tt><tt>Regards,</tt><br>
<pre cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a href="http://www.opensips-solutions.com" target="_blank">http://www.opensips-solutions.com</a></pre><div><div class="h5">
On 30.12.2014 12:16, John Nash wrote:<br>
</div></div></div>
<blockquote type="cite"><div><div class="h5">
<div dir="ltr">
<div>I was looking at usage of validate_dialog() and saw the
following snippet from module documentation page. If you check
the else part... as per my understanding if a dialog is not
found ($DLG_status) will be NULL) it will go to else part
which indicates a message has To tag but dialog not found. How
can it be a valid in-dialog request.<br>
<br>
<pre style="font-family:monospace;white-space:pre-wrap;color:rgb(0,0,0);border:1px solid rgb(153,204,204);padding-left:15pt;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;background-color:rgb(254,254,238)"> if (has_totag()) {
loose_route();
if ($DLG_status!=NULL && !validate_dialog() ) {
xlog(" in-dialog bogus request \n");
} else {
xlog(" in-dialog valid request - $DLG_dir !\n");
}
}</pre>
Also there is one more code<br>
<pre style="font-family:monospace;white-space:pre-wrap;color:rgb(0,0,0);border:1px solid rgb(153,204,204);padding-left:15pt;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;word-spacing:0px;background-color:rgb(254,254,238)"> if (has_totag()) {
loose_route();
if ($DLG_status!=NULL)
if (!validate_dialog())
fix_route_dialog();
}
</pre>
<br>
</div>
After calling fix_route_dialog() do I need to just relay the
message? I mean this function will "fix" the message and
send?....I was trying to look for some security check where
someone can inject a route header and a to tag (Bogus of course)
to reach to my gateways through my proxy.<br>
<div><br>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><pre>_______________________________________________
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</pre>
</blockquote>
<br>
</div>
</blockquote></div><br></div>