25 Aug
2014
25 Aug
'14
3:36 p.m.
Hmmm... So if I cath 407 Kamailio works with Invite that Send from Asterisk
to Provider before I changed It.
About changing from/to:
UAC mode have uac_replace_from()/uac_replace_to() for rewriting headers .
Must I use this functions instead my changes?
About Breaking RFC:
so UAC do it breaking RFC? And second - What write way to send packet to
provider through kamailo if providers registrates on It?
Thanks!
2014-08-25 16:19 GMT+04:00 Alekzander Spiridonov <alekz(a)li.ru>ru>:
Hi,
First of all, changing From\To headers on proxy breaks the RFC =) So
that's the initial problem of your set up I guess.
About your qustion, check out the wiki about failure_route:
Note that in 'failure_route' is processed
the request that initiated the
transaction, not the reply.
The only workaround you may want to check is to update the request and
apply lumps before you create a transaction.
2014-08-25 16:03 GMT+04:00 Yuriy Gorlichenko <ovoshlook(a)gmail.com>om>:
Hello. At first- I think header of my message
doesn't explain my porblem
but I can not say about it with different terms)
So. I have construction Asterisk --> Kamailio --> Providers
My provisers registered with UAC modure and stored at UACREG table.
Problem scenario is:
I ring from asterisk to provider
Asterisk --> Kamailio --> Providers
Call from asterisk come to kamailio with
furi(Asterisk_clinet_local_number@asterisk)
turi(external_number@kamailio)
Then, to forward INVITE to provider that Needed I use some manipulations
to choose provider (it does not matter, it is only sql_queryes to some
tables), and then modify invite with this code:
#$var(prov) - my.provider.ip
#$var(trunk) - name_of_trunk
$rd=$var(prov);
$rp="5060";
$fU=$var(trunk);
$fd=$var(prov);
$td=$var(prov);
remove_hf("Contact");
append_hf("Contact:<$var(trunk)@my.kamailio.domain:5068>\n","Contact");
So -after this manipulation I have write packet, that goues to my
provider.
Then Provier sends me 407 answer and packet goes to failure_route
if (t_check_status("401|407")){
xlog("L_INFO", "Reply from provider on failure: $rs");
if (uac_auth()){
#my query to get avp for uac
#modparam("uac","auth_realm_avp","$avp(s:realm)")
#modparam("uac","auth_username_avp","avp(s:uname)")
#modparam("uac","auth_password_avp","$avp(s:passwd))")
sql_pvquery("ca","select auth_username, auth_password, realm from uacreg
where auth_username='$fU'","$var(uname), $var(passwd),
$var(realm)");
xlog("L_INFO", "username=$var(uname),
password=$var(passwd), realm=$var(realm) for {$fU}");
pv_printf("$avp(s:uname)","$var(uname)");
pv_printf("$avp(s:passwd)","$var(passwd)");
pv_printf("$avp(s:realm)","$var(realm)");
xlog("L_INFO", "UAC_AUTH(): $rs");
append_branch();
t_relay();
}
}
if (t_is_canceled()) {
exit;
}
So After changes Before Provider answer 407 my $fU = name_of_trunk, but
at failure route my fU is Asterisk_clinet_local_number and it so strange
because I see this packet at TCPDUMP and it have trunkname at fU
Because of It I can not take from table needed vars for auth and avp`s
Have 0.
So packet for Auth (407) goes to Asterisk (with trunkname!!!! at fU), but
t must stops at kamailio and must be ralayed to provider.
So this my problem- I can not understand: Why fU at reply 407 have old
parameters?
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--
Best regards,
Alekzander Spiridonov
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