Hello,
On 2/27/11 3:46 AM, x-kamai...@sidell.org wrote:
I'm trying to use the db_alias module as a way to define "generic"
addresses that map to a set of actual phones. For example, I'd like
the alias "h...@foo.bar" to map to "kitc...@foo.bar" and
"off...@foo.bar", so that both phones ring when a call comes in to
"home".
I have set the append_branches param to 1:
modparam("alias_db", "append_branches", 1)
I also modified the dbaliases database table so that key "alias_idx"
isn't unique, thereby allow me to add multiple rows for the same
alias.
The relevant script section is taken verbatim from 3.1 kamailio.cfg:
# USER location service
route[LOCATION] {
#!ifdef WITH_ALIASDB
# search in DB-based aliases
alias_db_lookup("dbaliases");
#!endif
if (!lookup("location")) {
switch ($rc) {
case -1:
case -3:
xlog( "L_WARN", "XXX $ru $fu\n");
t_newtran();
t_reply("404", "Not Found");
exit;
case -2:
sl_send_reply("405", "Method Not Allowed");
exit;
}
}
# when routing via usrloc, log the missed calls also
if (is_method("INVITE"))
{
setflag(FLT_ACCMISSED);
}
}
When I place a call to an alias, the kamailio debug log shows that
alias_db_lookup() is correctly setting the ruri to the first entry
found in the table, and using append_branch() to add the others. But
only the first matching phone gets an INVITE, not the others. I
suspect that the lookup() call is blowing away the branches set up by
alias_db_lookup() and replacing them with the single phone that
matches the ruri for the first alias entry.
Is there a way to get alias_db_lookup() and lookup() to play together,
so that the first function can set up a list of branches, and the
second function can resolve all of the branches to the actual device
locations?
the branches added by alias_db are not lost, but they are sent back to
you over loopback. They get dropped probably because they are authenticated.
Try to watch the traffic on loopback with ngrep just to see if I am right:
ngrep -d any -qt -W byline port 5060
The solution in this case is to have a condition in route[AUTH] for
non-REGISTER requests, something like:
if(src_ip==myself)
return;
before doing proxy_authenticate().
Cheers,
Daniel
--
Daniel-Constantin Mierla
http://www.asipto.com
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