I'm trying to find a way to differentiate between originating and terminating
legs. Currently in kex module, in core_stats.c I'm adding new counters for more
response codes, I want to have two sets of counters, one for originating and
one for terminating.
In ims_getters.c file, I found a function called cscf_has_originating, which by
description "Finds if the message contains the orig parameter in the first
Route header"
I'm calling it like the following:
static int km_cb_rpl_stats_by_method(struct sip_msg *msg, unsigned int flags,
void *param)
{
int originating = cscf_has_originating(msg);
....
However it always returns CSCF_RETURN_FALSE (or -1).
I added a log message and increased log level for core module:
DEBUG: <core> [ims_getters.c:561]: cscf_has_originating(): I_originating:
Header Route not found
ERROR: kex [core_stats.c:424]: km_cb_rpl_stats_by_method(): In kex module
received rpls, the return value of cscf_has_originating is: -1
That's because cscf_has_originating function is calling parse_headers function,
trying to get msg->route
but that route property is not set correctly in the previous step:
if(parse_headers(msg, HDR_ROUTE_F, 0) < 0) {
LM_DBG("I_originating: error parsing headers\n");
return CSCF_RETURN_FALSE;
}
so it returns -1 after checking msg->route value.
Do you know any alternative solution? or do you know why msg->route value is 0
or NULL?
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