To be clear, the two t_newtran() calls in the main request_route were naturally
a typo. :-) Only the first one was intended.
> On Dec 12, 2022, at 3:45 PM, Alex Balashov <abalas...@evaristesys.com> wrote:
>
> Hi,
>
> Is there any good solution for the scenario of an auth_challenge() with two
> separate transaction suspensions?
>
> To clarify (simplified):
>
> request_route {
> ...
>
> t_newtran();
>
> if(!is_present_hf("Authorization") &&
> !is_present_hf("Proxy-Authorization")) {
> auth_challenge("$fd", "1");
> exit;
> }
>
> # TM suspend/continue
> t_newtran();
>
> async credentials query("RESUME_AUTH");
> }
>
> route[RESUME_AUTH] {
> # Credentials received into PVs.
>
> if(!pv_auth_check("...")) {
> auth_challenge("$fd", "1");
> exit;
> }
>
> # Create transaction shell if not exists already from auth query.
> if(!t_lookup_request())
> t_newtran();
>
> # TM suspend/continue
> async route query("RESUME_ROUTING");
> }
>
> route[RESUME_ROUTING] {
> # Unmarshal etc.
>
> t_relay(); # etc.
> }
>
> What happens here is that the first auth_challenge() results in a
> retransmission of its 407 challenge without absorbing the negative ACK. This
> is despite the ostensibly stateful behaviour of auth_challenge() without
> "force_stateless_reply" enabled.
>
> In this case, it eclipses the second, unrelated 407 challenge from the
> subsequent routing query (407 challenge with +1 CSeq):
>
>
> <Screenshot 2022-12-12 at 3.44.15 PM.jpeg>
> -- Alex
>
> --
> Alex Balashov | Principal | Evariste Systems LLC
>
> Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
> Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
>
--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
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