[SR-Users] is_method not matching message type KDMQ breaking DMQ bus. (master branch)

Asgaroth 00asgaroth00 at gmail.com
Tue Jul 31 18:01:43 CEST 2018


Hi All,

I've come across and oddity whereby my is_method("KDMQ") checks are not 
matching.

I'm testing with kamailio master:

version: kamailio 5.2.0-dev6 (x86_64/linux) a16272
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, 
USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, 
F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, 
FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, 
USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144 MAX_URI_SIZE 1024, 
BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: a16272
compiled on 15:27:21 Jul 31 2018 with gcc 7.3.1

Sample routing logic:

request_route {
     route("InitialMessageChecks");
     exit;
}


route[InitialMessageChecks] {
     xlog("L_INFO", "Received message type $rm from $si:$sp on $Ri:$Rp");

     if ( is_method("KDMQ") ) { xlog("L_INFO", "KDMQ check passed."); }
     if ( is_method("OPTIONS") ) { xlog("L_INFO", "OPTIONS check 
passed."); }
     if ( is_method("SUBSCRIBE") ) { xlog("L_INFO", "SUBSCRIBE check 
passed."); }

}

In the logs I am only receiving the 1st log line in the initial message 
checks route for message types of KDMQ, eg:

INFO: <script>: Received message KDMQ from 1.1.1.1:5060 on 1.1.1.2:5060
INFO: <script>: Received message KDMQ from 1.1.1.3:5060 on 1.1.1.2:5060

I never seem to hit the is_method check log line when the method type is 
KDMQ.

I do see the options/subscribe logs though:

INFO: <script>: OPTIONS check passed.
INFO: <script>: SUBSCRIBE check passed.

nothing for KDMQ.

Reason for asking is: this check never matches and breaks the dmq bus:

if ( is_method("KDMQ") ) {
     if ( dmq_is_from_node() ) {
         dmq_handle_message();
         exit;
     } else {
         exit;
     }
}

Any thoughts, or am I going crazy :)

Thanks




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