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Hello,<br>
<br>
<div class="moz-cite-prefix">On 16/09/14 18:37, Vik Killa wrote:<br>
</div>
<blockquote
cite="mid:CAC-LwPPERxdUvjJtn1UOdo+6C7tQnvRgzmfxaGzZPj8sJ75Hfg@mail.gmail.com"
type="cite">
<div dir="ltr">Thanks Daniel,
<div>I want to remove the htable entry after the register goes
through, and I also want to check if the htable entry exists
later.</div>
<div><br>
</div>
<div>I see</div>
<div><br>
</div>
<div>sht_rm_value_re("ha=>.*"); <br>
</div>
</div>
</blockquote>
this is going to remove all the items from the hash table -- perhaps
you don't want to do that.<br>
<br>
To remove the entry you added for register once the registration was
successful, add reply_route where you check if it is REGISTER and
the code is 200, then remove the item using the call id (same key as
you used to add the item).<br>
<br>
$sht(a=>$ci::dest_server) = $null;<br>
<br>
Assigning $null removes the respective item from hash table.<br>
<br>
<blockquote
cite="mid:CAC-LwPPERxdUvjJtn1UOdo+6C7tQnvRgzmfxaGzZPj8sJ75Hfg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div><br>
</div>
<div>to remove the htable entry but how do i later check if the
key exists?</div>
</div>
</blockquote>
<br>
$null can be used to test if key exists or not, like
if($sht(a=>x)==$null)<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<blockquote
cite="mid:CAC-LwPPERxdUvjJtn1UOdo+6C7tQnvRgzmfxaGzZPj8sJ75Hfg@mail.gmail.com"
type="cite">
<div dir="ltr">
<div><br>
</div>
<div>Thanks</div>
<div>/V</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Sep 16, 2014 at 11:52 AM,
Daniel-Constantin Mierla <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:miconda@gmail.com"
target="_blank">miconda@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Hello,<br>
<br>
if you want to rely on kamailio to memorize where to send
the following register, the hash table is the right tool.<br>
<br>
Cheers,<br>
Daniel
<div>
<div class="h5"><br>
<br>
<div>On 16/09/14 03:37, Vik Killa wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div class="h5">
<div dir="ltr">Hello,
<div>I'm learning Kamailio. My ultimate goal is to
be able to route SIP messages from User Agents
to specific FS boxes.</div>
<div><br>
</div>
<div>I'm starting with routing REGISTER messages.</div>
<div>I used app_perl to randomly lookup one of the
FS box's IP Address from postgres database, then
I stored the IP in avp and then in hash. It
seemed like overkill but it was the only way I
could keep the FS IP address in memory between
the first REGISTER and REGISTER with Auth.</div>
<div><br>
</div>
<div>my app_perl script sets the IP as follows:</div>
<div><br>
</div>
<div>
<div>my $sth = $dbh->prepare("SELECT
ip_address FROM host_machine WHERE is_online =
true ORDER BY random() LIMIT 1");</div>
<div>$sth->execute();</div>
<div>my $host_ip_address = $sth->fetchrow();</div>
</div>
<div>Kamailio::AVP::add(10, <a
moz-do-not-send="true">"sip:$host_ip_address:5060"</a>);<br>
</div>
<div><br>
</div>
<div>And here is my kamailio.cfg for REGISTERs</div>
<div><br>
</div>
<div>
<div>route[REGISTRAR]</div>
<div>{</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>if
(!is_method("REGISTER|PUBLISH"))</div>
<div><span style="white-space:pre-wrap"> </span>return;</div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>if
(is_present_hf("Authorization")) {</div>
<div><span style="white-space:pre-wrap"> </span>add_path_received();</div>
<div><span style="white-space:pre-wrap"> </span>$avp(i:10)
= $sht(a=>$ci::dest_server);</div>
<div><span style="white-space:pre-wrap"> </span>avp_pushto("$du",
"$avp(i:10)");</div>
<div><span style="white-space:pre-wrap"> </span>}
else {</div>
<div><span style="white-space:pre-wrap"> </span>perl_exec("random_server");</div>
<div><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span>avp_pushto("$du",
"$avp(i:10)");</div>
<div><span style="white-space:pre-wrap"> </span>$sht(a=>$ci::dest_server)
= $avp(i:10);</div>
<div><br>
</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>t_relay();<span
style="white-space:pre-wrap"> </span></div>
<div><br>
</div>
<div><span style="white-space:pre-wrap"> </span>exit;<br>
</div>
<div>}</div>
</div>
<div><br>
</div>
<div><br>
</div>
<div>"random_server" is the perl script to get the
FS IP address...</div>
<div>Seems crude but works... </div>
<div>I'm sure there is probably a more elegant way
to do what im trying so any advice and criticism
is appreciated, thank you!</div>
<div><br>
</div>
<div>/V</div>
<div><br>
</div>
<div><br>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div>
</div>
<pre>_______________________________________________
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<span class="HOEnZb"><font color="#888888"> </font></span></blockquote>
<span class="HOEnZb"><font color="#888888"> <br>
<pre cols="72">--
Daniel-Constantin Mierla
<a moz-do-not-send="true" href="http://twitter.com/#%21/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Next Kamailio Advanced Trainings 2014 - <a moz-do-not-send="true" href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
Sep 22-25, Berlin, Germany</pre>
</font></span></div>
<br>
_______________________________________________<br>
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users
mailing list<br>
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href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
<a moz-do-not-send="true"
href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Next Kamailio Advanced Trainings 2014 - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
Sep 22-25, Berlin, Germany</pre>
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