Hello,
I am working on Kamailio
3.2.2. There is no traffic, only functional test done.
Based on the SIP Client
used until now (Xlite), the INVITE is systematically
authenticated by 407 as there is no Proxy-Authorization in
the initial INVITE. Expected/normal behavior.
But when using an
internal SIP client, the initial INVITE is generated with a
Proxy-Authorization containing the nonce value used by the
successful registration.
In Authorization of
Register (the answer is 200OK)
Digest
username="+33296488922@ims.v0.pftest.net",
realm="sip:ims.v0.pftest.net", nonce="UDP43lAzpH7SjicT6+9/KDDloW4OTfTXoGWlZurBVut0JV604jox/QY+tVeA",
uri="sip:ims.v0.pftest.net",
response="4ed51b8e62cf769b19f8c4771e068ad3",
cnonce="06440000000529330fe1", qop=auth, nc=00000011
In
Proxy-Authorization of Invite
Digest
username="+33296488922@ims.v0.pftest.net",
realm="sip:ims.v0.pftest.net", nonce="UDP43lAzpH7SjicT6+9/KDDloW4OTfTXoGWlZurBVut0JV604jox/QY+tVeA",
uri="sip:0157361149@ims.v0.pftest.net",
response="b247052d6d5b37e0b6677c816390cb77",
cnonce="06440000000529330fe1", qop=auth, nc=00000012
As the nonce expire is
high (see nonce_expire), I don't understand why Kamailio
requests the Authentication of the INVITE by 407.
407 with
Proxy-Authenticate: Digest
realm="ims.v0.pftest.net",
nonce="UDP6pVAzpkWDF+jSlP3zzVYcuNPhY8NQBj62WIA=",
qop="auth", stale=true
Does it mean that the
REGISTER and INVITE are using different Nonce value ?
è Information on my
configuration file.
modparam("auth_db",
"db_url", DBURLAUTH)
modparam("auth",
"auth_checks_register", 6) # callid and From TAG
modparam("auth", "qop",
"auth") # enable qop=auth
modparam("auth",
"nonce_count", 1) # enable nonce_count support
modparam("auth",
"nonce_expire", 21600) # Set nonce_expire to 6 hours
For register, I do
if
(!www_authorize("$ru", "subscriber"))
{
if($?
== -2 || $? == -3) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
else
{
www_challenge("$ru", "17");
exit;
}
}
For invite, I do
if
(!proxy_authorize("$fd", "subscriber"))
{
if($? ==
-2 || $? == -3) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
else {
proxy_challenge("$fd", "17");
xlog("L_INFO","INVITE challenged by 407 to :$di:$dp \n");
exit;
}
}
Followed by
consume_credentials();
Thanks in advance for
your support.