[SR-Users] CSeq not incrementing - app_ruby

[Henning Westerholt]

Hello,

why do you set the variable cseq_diff to 1? From the module README:

"The CSeq difference is stored in $dlg_var(cseq_diff), be sure this variable is not overwritten via config operation."

A suggestion would be to test this with DBG log level, so see if the dialog module is logging something related to the CSEQ update code path. There is some log output that should be visible.

Cheers,

Henning

Am 27.04.19 um 18:27 schrieb Karsten Horsmann:
Hi,

AFAIK the uac module don't support cseq autoupdate.

CSeq is not increased automatically by uac_auth() during authentication - the follow up request may be rejected. CSeq can be increased when authenticating INVITE requests - dialog module has to be used, with CSeq tracking feature enabled (see the readme of dialog module).

Hmm are you sure that the dialog module is taking care of your second INVITE?

Kind regards
Karsten

Andrew White <andrew at uconnected.com.au<mailto:andrew at uconnected.com.au>> schrieb am Fr., 26. Apr. 2019, 19:15:
Hi all,

I’m still building with app_ruby and loving it - for the most part!

I’m having an issue with one of my providers responding with a 482 on auth invite. Researching, it appears that my CSeq isn’t incrementing and this is the reason for the issue.

I already have the relevant flag set in my kamailio.cfg however:

modparam("dialog", "track_cseq_updates", 1)

During my uac_auth, I’ve tried manually setting the diff, as well as running msg_iflag_reset (as suggested by Daniel - https://github.com/kamailio/kamailio/issues/1359 - unfortunately the function isn’t exported in KEMI):

if KSR::UAC.uac_auth() then
KSR.info("UAC authed, relaying")
#KSR::COREX.msg_iflag_reset("UAC_AUTH")
KSR::PV.sets("$dlg_var(cseq_diff)", "1")
KSR.info("CSeq diff: #{KSR::PV.gete("$dlg_var(cseq_diff)")}")
KSR::TM.t_relay()

Unfortunately in both cases the actual CSeq doesn’t increment in the second INVITE:

INVITE 1 (unauthenticated):
 > CSeq: 102 INVITE

INVITE 2 (with Authorization header):
> CSeq: 102 INVITE

I’m unsure if I’ve missed something silly around the track_cseq_updates flag, or if app_ruby somehow isn’t interacting with the dialog module when running uac_auth to trigger the increment?

Thanks!

Kind regards,

Andrew
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Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
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