<html><body bgcolor="#FFFFFF"><div>See if setting this param on helps.</div><div><br><a href="http://www.opensips.org/html/docs/modules/devel/tm.html#id293118">http://www.opensips.org/html/docs/modules/devel/tm.html#id293118</a><br>
-Brett</div><div><br>On Aug 4, 2011, at 7:48 PM, Bobby Smith <<a href="mailto:bobby.smith@gmail.com">bobby.smith@gmail.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>All,<div><br>Here's why I'm trying to accomplish:</div>
<div><br></div><div>route [subsequent_request] {</div><div> if (has_totag && is_method("ACK") {</div><div> if (MY_VAR = "cisco") {</div>
<div> lookup("location");</div><div> ... relay and exit</div><div> }</div><div> else {</div><div> ... relay and exit lr</div><div> }</div><div> }</div><div>}</div><div><br></div>
<div>onreply_route [foo] {</div><div> ....</div><div> if($ua =~ "Cisco-CP79") {</div><div> MY_VAR = "cisco"</div><div> }</div><div>}</div><div><br></div><div>The reasons are not really relevant (it's to get rid of a really poor UA implementation on older Cisco 79XX firmwares), but my intent is:</div>
<div><br></div><div>1) Set a transaction-visible-only value in onreply_route [foo] </div><div>2) Retrieve it on the ACK that completes the initial invite transaction.</div><div><br>My problems:</div><div><br></div><div>
1) if MY_VAR is an $avp, it returns null on retrieving it in the route[subsequent_request], even with the onreply flag for tm set.</div>
<div>2) if MY_VAR is a $var, it's process global and so, the next transaction that comes in could share the same state (race)</div><div>3) if MY_VAR is a flag, I can't retrieve it in the route [subsequent request]</div>
<div>4) if MY_VAR is a dlg_flag or a dlg_var, I can't retrieve it in the subsequent request even if invoking create_dialog as the first action in the routing script (if it's an initial invite).</div><div>5) The only thing I've been able to do is create a unique key via localcache (with $fU_useragent = myvalue) and fetch it, but this does not allow multiple UA's to register with the same fU</div>
<div><br></div><div>My question is, is there any way to set a transaction state only value in an onreply hook, and retrieve it on the ACK?<br><br>I know according to the RFC:</div><div><br></div><div><span class="Apple-style-span" style="font-family: 'Times New Roman'; "><pre style="font-size: medium; ">
The reason for this separation is rooted in the <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-importance.html" class="keyword" name="d4e475468" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">importance</a> of
delivering all 200 (OK) responses to an <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-invite.html" class="keyword" name="d4e475473" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">INVITE</a> to the <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-uac.html" class="keyword" name="d4e475476" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">UAC</a>. To
deliver them all to the <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-uac.html" class="keyword" name="d4e475481" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">UAC</a>, the <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-uas.html" class="keyword" name="d4e475485" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">UAS</a> alone takes responsibility
for retransmitting them (see Section 13.3.1.4), and the <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-uac.html" class="keyword" name="d4e475492" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">UAC</a> alone
takes responsibility for acknowledging them with <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-ack.html" class="keyword" name="d4e475497" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">ACK</a> (see Section
13.2.2.4). Since this <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-ack.html" class="keyword" name="d4e475503" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">ACK</a> is retransmitted only by the <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-uac.html" class="keyword" name="d4e475506" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">UAC</a>, it is
effectively considered its own <a href="http://rfc-ref.org/RFC-TEXTS/3261/kw-transaction.html" class="keyword" name="d4e475511" style="font-family: tahoma, verdana, sans-serif; font-weight: normal; ">transaction</a>.
</pre></span><div style="font-size: medium; font-family: 'Times New Roman'; "><br></div><div style="font-size: medium; font-family: 'Times New Roman'; "><br></div><div style="font-family: 'Times New Roman'; ">
Is there a way to get this associated with the right dialog or something? I've tried setting a dialog profile on initial invite, storing a value in the 200 OK onreply, and retrieving it as well in the ACK, but I get no dialog has been created (I guess because the dialog is early or something).</div>
<span class="Apple-style-span" style="font-family: 'Times New Roman'; ">
</span><div style="font-family: 'Times New Roman'; "><br></div><div style="font-family: 'Times New Roman'; "><br>Thanks for the ideas,</div><div style="font-family: 'Times New Roman'; "><br>BobbyS</div>
</div>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Users mailing list</span><br><span><a href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a></span><br>
<span><a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a></span><br></div></blockquote></body></html>