> On 16 Jan 2023, at 14:41, Benoit Panizzon <[email protected]> wrote: > > Hi Gang > > I have this code snipplet: > > if (has_credentials("$fd")) { > xlog("L_INFO", "$cfg(route): got $rm with credentials. > Validate them!\n"); > if ($aU == $null) { > xlog("L_INFO", "$cfg(route): no auth user, send > challenge\n"); > } > auth_challenge("$fd", "0"); > exit; > } > } > > Please don't ask if this makes sense, it's a constructed snipplet to show the > situation. > > If $rm is INVITE, this works fine, no challenge is being sent, $au is > populated. > If $rm is ACK (some CPE seem to send the Credentials with each message) then > $au is $null, > auth_challenge is called and fails.
SInce you can’t respond to ACK, you can’t challenge it. ACK is the only SIP request method that you can’t respond to. I won’t start a discussion on which transaction it belongs to, because that’s hardcore SIP, but to simplify: “ACK is a response to the 200 OK in the INVITE transaction”. /O __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
