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After upgrading kamailio from 5.4.4 to 5.4.5, the lcr module logs an error for outgoing calls. load_gws returns success (1), but does not populate the avps. Consequently, next_gw fails.
kamailio.cfg:
loadmodule "lcr.so"
...
modparam("lcr", "db_url", "cluster://cls1")
modparam("lcr", "gw_uri_avp", "$avp(i:709)")
modparam("lcr", "ruri_user_avp", "$avp(i:500)")
modparam("lcr", "tag_avp", "$avp(lcr_tag)")
modparam("lcr", "flags_avp", "$avp(i:712)")
modparam("lcr", "defunct_capability", 1)
modparam("lcr", "lcr_id_avp", "$avp(s:lcr_id_avp)")
modparam("lcr", "defunct_gw_avp", "$avp(s:defunct_gw_avp)")
modparam("lcr", "ping_interval", 60)
...
route[LCR] {
if(!($rU=~"^[+0-9]"))
return;
if(is_method("INVITE")) {
if (!($fU=~"^[+0-9]+$")) {
append_hf("P-Asserted-Identity: <sip:+49xxxxxxxxxxx@xxxxx.de>\n");
append_hf("Privacy: id\n");
$fn = "Anonymous";
$fu = "sip:+49xxxxxxxxxxx@xxxxx.de";
}
if(load_gws(1, $rU, $var(caller_uri)) != 1) {
xlog("L_ERROR", "Couldn't load gateways\n");
sl_send_reply("500", "Server Internal Error - Cannot load gateways");
exit;
} else {
xlog("L_INFO", "GW Selected '$avp(i:709)'\n");
xlog("L_INFO", "Domain of destination: $dd\n");
xlog("L_INFO", "To URI: $tu\n");
}
if(!next_gw()) {
xlog("L_WARN", "No gateway configured for $rU\n");
sl_send_reply("503", "Service not available, no gateways found");
exit;
} else {
xlog("L_INFO", "Calling the first matched gateway\n");
xlog("L_INFO", "ruri_user_avp: '$avp(i:500)'\n");
xlog("L_INFO", "To URI after next_gw: $tu\n");
xlog("L_INFO", "Request URI: $ru\n");
}
t_on_failure("MANAGE_FAILURE_LCR");
route(RELAY);
exit;
}
}
Apr 15 20:59:27 x /usr/sbin/kamailio[879]: ERROR: <core> [core/usr_avp.c:152]: create_avp(): 0 ID or NULL NAME AVP!
Apr 15 20:59:27 x /usr/sbin/kamailio[879]: ERROR: <core> [core/usr_avp.c:152]: create_avp(): 0 ID or NULL NAME AVP!
Apr 15 20:59:27 x /usr/sbin/kamailio[879]: INFO: <script>: GW Selected '<null>'
Apr 15 20:59:27 x /usr/sbin/kamailio[879]: INFO: <script>: Domain of destination: <null>
Apr 15 20:59:27 x /usr/sbin/kamailio[879]: INFO: <script>: To URI: sip:+49177xxxxxxx@xx.xxx.x.xxx:5060
Apr 15 20:59:27 x /usr/sbin/kamailio[879]: WARNING: <script>: No gateway configured for +49177xxxxxxx
SIP request:
INVITE sip:+49177xxxxxxx@xx.xx.xx.xxx:5060 SIP/2.0
Via: SIP/2.0/UDP xxx.xx.xx.xxx:xxxxx;branch=z9hG4bK5d833a50
Max-Forwards: 70
From: <sip:+xxxxxxxxxxx@xxx.xx.xx.xxx:xxxxx>;tag=as18ff0d47
To: <sip:+49177xxxxxxx@xx.xx.xx.xxx:5060>
Contact: <sip:+xxxxxxxxxxx@xxx.xx.xx.xxx:xxxxx>
Call-ID: 7489c50703b43b2f03980574181a2f81@xxx.xx.xx.xxx:xxxxx
CSeq: 102 INVITE
User-Agent: Asterisk PBX 13.18.3~dfsg-1ubuntu4
Date: Thu, 15 Apr 2021 21:52:42 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 952
...
SIP reply:
SIP/2.0 503 Service not available, no gateways found
Via: SIP/2.0/UDP xxx.xx.xx.xxx:xxxxx;branch=z9hG4bK5d833a50;rport=50060;received=xx.xx.xx.xxx
From: <sip:+xxxxxxxxxxx@xxx.xx.xx.xxx:xxxxx>;tag=as18ff0d47
To: <sip:+49177xxxxxxx@xx.xx.xx.xxx:5060>;tag=6a823999ce344a0b461cf8d85d526103.51611a36
Call-ID: 7489c50703b43b2f03980574181a2f81@xxx.xx.xx.xxx:xxxxx
CSeq: 102 INVITE
Server: kamailio (5.4.5 (x86_64/linux))
Content-Length: 0
As a workaround, I downgraded to kamailio 5.3.8 because the previous Ubuntu release 5.4.4 is not available anymore at http://deb.kamailio.org/kamailio54/pool/main/k/kamailio/ (why actually?)
ca18218 might be involved in the issue.
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