Description

KEMI onsend_route is not called unless there is a placeholder/dummy routing block.

## without this block, core will never call KEMI->onsend_route
onsend_route {
 ## do nothing
}

Troubleshooting

Reproduction

1. In KEMI create ksr_onsend_route(). Observe that this function is never invoked.

2. Add a route block:

onsend_route {
 ## do nothing
}

Now observe, that KEMI ksr_onsend_route() is called.

Debugging Data

Log Messages

SIP Traffic

Possible Solutions

Not really a problem, just a surprise to the KEMI user. Possibly, document that in order for the KEMI function to be called, the configuration file needs a dummy routing block for onsend_route.

Additional Information

The reason is the following logic:
onsend.h:
ret=keng->froute(orig_msg, ONSEND_ROUTE, NULL, NULL);

This line is called only if onsend_rt.rlist[DEFAULT_RT] is non-NULL, but this array is initialized only if the onsend_route block exists.

• Kamailio Version - 5.1, master

• Operating System:
  Linux CentOS 7.4

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