[SR-Users] potential PRACK related topos bug
Daniel-Constantin Mierla
miconda at gmail.com
Wed Apr 21 15:15:59 CEST 2021
On 20.04.21 13:09, Juha Heinanen wrote:
> Daniel-Constantin Mierla writes:
>
>> Can you try with latest master branch? I pushed a commit to topos
>> module.
> Tried with latest master and the following in-dialog code:
>
> if (!loose_route_mode("1")) {
> if (is_method("ACK")) {
> if (t_check_trans()) {
> t_relay();
> } else {
> xinfo("Discarding unmatched $rm <$ru> by <$fu>\n");
> };
> } else {
> xnotice("Discarding in-dialog $rm <$ru> without Route header\n");
> send_reply("404", "Not found");
> };
> exit;
> };
>
> Got this to syslog:
>
> Apr 20 10:53:11 edge /usr/bin/edge-proxy[15624]: NOTICE: {1 2 PRACK
> HWoFVYqzNT_-3egFTTvu0Q} <script>: Discarding in-dialog PRACK
> <sip:atpsh-607eb272-3d06-1-leg1 at 46.182.160.60> without Route header
>
> when P1 received PRACK from A (in toplogy A - P1 - P2 - P1 - B).
>
> topos event route in P1 looks like this:
>
> event_route[topos:msg-sending] {
>
> if ($mt == 1) {
> if (is_method("INVITE") && !has_totag()) {
> if ($sndto(ip) == "P2") {
> xinfo("Setting topos leg to <leg1> on <$rm> to $sndto(ip)");
> tps_set_context("leg1");
> } else {
> xinfo("Setting topos leg to <leg2> on <$rm> to $sndto(ip)");
> tps_set_context("leg2");
> };
> };
> }
Hmm ... the issue seems to be related to missing record-route list for
callee side in the transaction record.
I do not have a test bedwhere I can reproduce during the next days,
would it be possible for you to use topos with db backend (mysql)
instead of redis and send again the logs with debug=3? That should
provide details of the db queries and indicate if the record-route
values are stored/retrieved to/from database.
Cheers,
Daniel
--
Daniel-Constantin Mierla -- www.asipto.com
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