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<p class="MsoNormal"><span style="color:#1F497D">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have noticed that user records were not being correctly saved in the location table.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have tried to fix this will the attached code.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This would fix reginfo_handle_notify() to store the user-record in the right format.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This fixes part of the problem, I’m still trying to fix the incorrect uri in the PUBLISH message generated by this module.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Regards,<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D">Gnaneshwar Gatla | InTouch Health | Software Developer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">6330 Hollister Ave. Goleta CA, 93117 | P: 805.562.8686 ext: 199<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Gnaneshwar Gatla
<br>
<b>Sent:</b> Tuesday, May 08, 2012 4:58 PM<br>
<b>To:</b> SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users Mailing List<br>
<b>Cc:</b> Carsten Bock (carsten@ng-voice.com)<br>
<b>Subject:</b> Bug: Pua_reginfo<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hello all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">There seems to be an deadlock between registrar and pua_reginfo module whenever a SIP client refreshes its registration.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">The pua_reginfo does not publish Event:reg when a sip client registers for the first time.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">The pua_reginfo module does not use ul.lock_udomain() to lock the ul table to get the record.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">The pua_reginfo does not release the record that it accessed from ul.get_urecord()<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Since the record is not released, when the client re-registers, the registrar module is unable to query for the userlocation and sends a 200 OK response with 0 bindings.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Which leads to no contact header in the response message and eventually deletion of the record in the location table(expires).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have tried to fix this using lock_udomain, release_urecord and unlock_udomain, but failed to rectify the error.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">The deadlock happens in modules_k/usrloc/udomain.c (db_load_urecord()).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">if (ul_dbf.query(_c, keys, 0, vals, columns, (use_domain)?2:1, 13, order,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> &res) < 0)
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">My Question: <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo4"><![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">is pua_reginfo supposed to delete record from location database and send the same data to a presence server?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l0 level2 lfo4">
<![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">If above is true, then should the registrar module insert a new record in the location table?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:1.0in;text-indent:-.25in;mso-list:l0 level2 lfo4">
<![if !supportLists]><span style="color:#1F497D"><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="color:#1F497D">If above is false, the registrar module should be able to refresh/update the record in the location table.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This error is also impacts pua_usrloc module too as it cannot access the record and sends creates an incorrect uri.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Help: <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I’m new and learning how Kamailio works, is there a clean way that pua_reginfo module gets the record?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Gnaneshwar Gatla | InTouch Health | Software Developer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">6330 Hollister Ave. Goleta CA, 93117 | P: 805.562.8686 ext: 199<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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